IDF master cf457d412 (#5073)

esp-dsp: master 7cc5073
esp-face: master 420fc7e
esp-rainmaker: f1b82c7
esp32-camera: master 2dded7c
esp_littlefs: master d268e18

.github/scripts/install-arduino-ide.sh

@@ -98,8 +98,8 @@ function build_sketch(){ # build_sketch <fqbn> <path-to-ino> [extra-options]
 		win_opts="-prefs=runtime.tools.ctags.path=$ARDUINO_IDE_PATH/tools-builder/ctags/$ctags_version -prefs=runtime.tools.arduino-preprocessor.path=$ARDUINO_IDE_PATH/tools-builder/arduino-preprocessor/$preprocessor_version"
 	fi
 
-	echo ""
-	echo "Compiling '"$(basename "$sketch")"' ..."
+	#echo ""
+	#echo "Compiling '"$(basename "$sketch")"' ..."
 	mkdir -p "$ARDUINO_BUILD_DIR"
 	mkdir -p "$ARDUINO_CACHE_DIR"
 	$ARDUINO_IDE_PATH/arduino-builder -compile -logger=human -core-api-version=10810 \
@@ -131,14 +131,14 @@ function count_sketches() # count_sketches <examples-path> <target-mcu>
         local sketchdir=$(dirname $sketch)
         local sketchdirname=$(basename $sketchdir)
         local sketchname=$(basename $sketch)
-        if [[ "${sketchdirname}.ino" != "$sketchname" ]]; then
+        if [[ "$sketchdirname.ino" != "$sketchname" ]]; then
             continue
-        fi;
-        if [[ -f "$sketchdir/.skip.$target" ]]; then
+        elif [[ -f "$sketchdir/.skip.$target" ]]; then
             continue
+        else
+        	echo $sketch >> sketches.txt
+        	sketchnum=$(($sketchnum + 1))
         fi
-        echo $sketch >> sketches.txt
-        sketchnum=$(($sketchnum + 1))
     done
     return $sketchnum
 }
@@ -168,13 +168,13 @@ function build_sketches() # build_sketches <fqbn> <target-mcu> <examples-path> <
 		echo "ERROR: Chunks count must be positive number"
 		return 1
 	fi
-	if [ "$chunk_idex" -ge "$chunks_num" ]; then
+	if [ "$chunk_idex" -ge "$chunks_num" ] && [ "$chunks_num" -ge 2 ]; then
 		echo "ERROR: Chunk index must be less than chunks count"
 		return 1
 	fi
 
 	set +e
-    count_sketches "$examples"
+    count_sketches "$examples" "$target"
     local sketchcount=$?
 	set -e
     local sketches=$(cat sketches.txt)
@@ -186,19 +186,27 @@ function build_sketches() # build_sketches <fqbn> <target-mcu> <examples-path> <
     	chunk_size=$(( $chunk_size + 1 ))
     fi
 
-    local start_index=$(( $chunk_idex * $chunk_size ))
-    if [ "$sketchcount" -le "$start_index" ]; then
-    	echo "Skipping job"
-    	return 0
-    fi
-
-    local end_index=$(( $(( $chunk_idex + 1 )) * $chunk_size ))
-    if [ "$end_index" -gt "$sketchcount" ]; then
+    local start_index=0
+    local end_index=0
+    if [ "$chunk_idex" -ge "$chunks_num" ]; then
+    	start_index=$chunk_idex
     	end_index=$sketchcount
-    fi
+    else
+	    start_index=$(( $chunk_idex * $chunk_size ))
+	    if [ "$sketchcount" -le "$start_index" ]; then
+	    	echo "Skipping job"
+	    	return 0
+	    fi
+
+	    end_index=$(( $(( $chunk_idex + 1 )) * $chunk_size ))
+	    if [ "$end_index" -gt "$sketchcount" ]; then
+	    	end_index=$sketchcount
+	    fi
+	fi
 
     local start_num=$(( $start_index + 1 ))
-    echo "Found $sketchcount Sketches";
+    echo "Found $sketchcount Sketches for target '$target'";
+    echo "Chunk Index : $chunk_idex"
     echo "Chunk Count : $chunks_num"
     echo "Chunk Size  : $chunk_size"
     echo "Start Sketch: $start_num"
@@ -218,6 +226,8 @@ function build_sketches() # build_sketches <fqbn> <target-mcu> <examples-path> <
         || [ "$sketchnum" -gt "$end_index" ]; then
         	continue
         fi
+        echo ""
+        echo "Building Sketch Index $(($sketchnum - 1)) - $sketchdirname"
         build_sketch "$fqbn" "$sketch" "$xtra_opts"
         local result=$?
         if [ $result -ne 0 ]; then

.github/scripts/install-platformio-esp32.sh

@@ -13,7 +13,7 @@ echo "Installing Platform ESP32 ..."
 python -m platformio platform install $PLATFORMIO_ESP32_URL > /dev/null 2>&1
 
 echo "Replacing the framework version ..."
-python -c "import json; import os; fp=open(os.path.expanduser('~/.platformio/platforms/espressif32/platform.json'), 'r+'); data=json.load(fp); data['packages']['framework-arduinoespressif32']['version'] = '*'; del data['packages']['framework-arduinoespressif32']['owner']; fp.seek(0); fp.truncate(); json.dump(data, fp); fp.close()"
+python -c "import json; import os; fp=open(os.path.expanduser('~/.platformio/platforms/espressif32/platform.json'), 'r+'); data=json.load(fp); data['packages']['framework-arduinoespressif32']['version'] = '*'; fp.seek(0); fp.truncate(); json.dump(data, fp); fp.close()"
 
 if [ "$GITHUB_REPOSITORY" == "espressif/arduino-esp32" ];  then
 	echo "Linking Core..."

.github/scripts/on-pages.sh

@@ -87,9 +87,15 @@ function git_safe_upload_to_pages(){
 
 EVENT_JSON=`cat $GITHUB_EVENT_PATH`
 
+echo "GITHUB_EVENT_PATH: $GITHUB_EVENT_PATH"
+echo "EVENT_JSON: $EVENT_JSON"
+
 pages_added=`echo "$EVENT_JSON" | jq -r '.commits[].added[]'`
+echo "added: $pages_added"
 pages_modified=`echo "$EVENT_JSON" | jq -r '.commits[].modified[]'`
+echo "modified: $pages_modified"
 pages_removed=`echo "$EVENT_JSON" | jq -r '.commits[].removed[]'`
+echo "removed: $pages_removed"
 
 for page in $pages_added; do
     if [[ $page != "README.md" && $page != "docs/"* ]]; then

.github/scripts/on-push.sh

@@ -24,7 +24,7 @@ BUILD_PIO=0
 if [ "$#" -lt 2 ] || [ "$CHUNKS_CNT" -le 0 ]; then
 	CHUNK_INDEX=0
 	CHUNKS_CNT=1
-elif [ "$CHUNK_INDEX" -gt "$CHUNKS_CNT" ]; then
+elif [ "$CHUNK_INDEX" -gt "$CHUNKS_CNT" ] &&  [ "$CHUNKS_CNT" -ge 2 ]; then
 	CHUNK_INDEX=$CHUNKS_CNT
 elif [ "$CHUNK_INDEX" -eq "$CHUNKS_CNT" ]; then
 	BUILD_PIO=1
@@ -69,6 +69,19 @@ if [ "$BUILD_PIO" -eq 0 ]; then
 	else
 		build_sketches "$FQBN" "$TARGET" "$ARDUINO_ESP32_PATH/libraries" "$CHUNK_INDEX" "$CHUNKS_CNT"
     fi
+
+	# ArduinoIDE ESP32C3 Test
+    TARGET="esp32c3"
+	FQBN="espressif:esp32:esp32c3:PartitionScheme=huge_app"
+	if [ "$OS_IS_WINDOWS" == "1" ]; then
+		build_sketch "$FQBN" "$ARDUINO_ESP32_PATH/libraries/WiFi/examples/WiFiClient/WiFiClient.ino" && \
+		build_sketch "$FQBN" "$ARDUINO_ESP32_PATH/libraries/WiFiClientSecure/examples/WiFiClientSecure/WiFiClientSecure.ino"
+	elif [ "$OS_IS_MACOS" == "1" ]; then
+		build_sketch "$FQBN" "$ARDUINO_ESP32_PATH/libraries/WiFi/examples/WiFiClient/WiFiClient.ino" && \
+		build_sketch "$FQBN" "$ARDUINO_ESP32_PATH/libraries/WiFiClientSecure/examples/WiFiClientSecure/WiFiClientSecure.ino"
+	else
+		build_sketches "$FQBN" "$TARGET" "$ARDUINO_ESP32_PATH/libraries" "$CHUNK_INDEX" "$CHUNKS_CNT"
+    fi
 else
 	source ./.github/scripts/install-platformio-esp32.sh
 	# PlatformIO ESP32 Test

.github/scripts/on-release.sh

@@ -183,6 +183,7 @@ cp -f  "$GITHUB_WORKSPACE/tools/gen_esp32part.py"  "$PKG_DIR/tools/"
 cp -f  "$GITHUB_WORKSPACE/tools/gen_esp32part.exe" "$PKG_DIR/tools/"
 cp -Rf "$GITHUB_WORKSPACE/tools/partitions"        "$PKG_DIR/tools/"
 cp -Rf "$GITHUB_WORKSPACE/tools/sdk"               "$PKG_DIR/tools/"
+cp -f  $GITHUB_WORKSPACE/tools/platformio-build*.py "$PKG_DIR/tools/"
 
 # Remove unnecessary files in the package folder
 echo "Cleaning up folders ..."
@@ -194,6 +195,7 @@ echo "Generating platform.txt..."
 cat "$GITHUB_WORKSPACE/platform.txt" | \
 sed "s/version=.*/version=$ver$extent/g" | \
 sed 's/runtime.tools.xtensa-esp32-elf-gcc.path={runtime.platform.path}\/tools\/xtensa-esp32-elf//g' | \
+sed 's/runtime.tools.xtensa-esp32s2-elf-gcc.path={runtime.platform.path}\/tools\/xtensa-esp32s2-elf//g' | \
 sed 's/tools.esptool_py.path={runtime.platform.path}\/tools\/esptool/tools.esptool_py.path=\{runtime.tools.esptool_py.path\}/g' \
  > "$PKG_DIR/platform.txt"
 
@@ -254,17 +256,30 @@ releasesJson=`curl -sH "Authorization: token $GITHUB_TOKEN" "https://api.github.
 if [ $? -ne 0 ]; then echo "ERROR: Get Releases Failed! ($?)"; exit 1; fi
 
 set +e
-prev_release=$(echo "$releasesJson" | jq -e -r '. | map(select(.draft == false and .prerelease == false)) | sort_by(.created_at | - fromdateiso8601) | .[0].tag_name')
-prev_any_release=$(echo "$releasesJson" | jq -e -r '. | map(select(.draft == false)) | sort_by(.created_at | - fromdateiso8601)  | .[0].tag_name')
+prev_release=$(echo "$releasesJson" | jq -e -r ". | map(select(.draft == false and .prerelease == false)) | sort_by(.published_at | - fromdateiso8601) | .[0].tag_name")
+prev_any_release=$(echo "$releasesJson" | jq -e -r ". | map(select(.draft == false)) | sort_by(.published_at | - fromdateiso8601)  | .[0].tag_name")
+prev_branch_release=$(echo "$releasesJson" | jq -e -r ". | map(select(.draft == false and .prerelease == false and .target_commitish == \"$RELEASE_BRANCH\")) | sort_by(.published_at | - fromdateiso8601)  | .[0].tag_name")
+prev_branch_any_release=$(echo "$releasesJson" | jq -e -r ". | map(select(.draft == false and .target_commitish == \"$RELEASE_BRANCH\")) | sort_by(.published_at | - fromdateiso8601)  | .[0].tag_name")
 shopt -s nocasematch
-if [ "$prev_any_release" == "$RELEASE_TAG" ]; then
-    prev_release=$(echo "$releasesJson" | jq -e -r '. | map(select(.draft == false and .prerelease == false)) | sort_by(.created_at | - fromdateiso8601) | .[1].tag_name')
-    prev_any_release=$(echo "$releasesJson" | jq -e -r '. | map(select(.draft == false)) | sort_by(.created_at | - fromdateiso8601)  | .[1].tag_name')
+if [ "$prev_release" == "$RELEASE_TAG" ]; then
+    prev_release=$(echo "$releasesJson" | jq -e -r ". | map(select(.draft == false and .prerelease == false)) | sort_by(.published_at | - fromdateiso8601) | .[1].tag_name")
+fi
+if [ "$prev_any_release" == "$RELEASE_TAG" ]; then
+    prev_any_release=$(echo "$releasesJson" | jq -e -r ". | map(select(.draft == false)) | sort_by(.published_at | - fromdateiso8601)  | .[1].tag_name")
+fi
+if [ "$prev_branch_release" == "$RELEASE_TAG" ]; then
+    prev_branch_release=$(echo "$releasesJson" | jq -e -r ". | map(select(.draft == false and .prerelease == false and .target_commitish == \"$RELEASE_BRANCH\")) | sort_by(.published_at | - fromdateiso8601)  | .[1].tag_name")
+fi
+if [ "$prev_branch_any_release" == "$RELEASE_TAG" ]; then
+    prev_branch_any_release=$(echo "$releasesJson" | jq -e -r ". | map(select(.draft == false and .target_commitish == \"$RELEASE_BRANCH\")) | sort_by(.published_at | - fromdateiso8601)  | .[1].tag_name")
 fi
-COMMITS_SINCE_RELEASE="$prev_any_release"
 shopt -u nocasematch
 set -e
 
+echo "Previous Release: $prev_release"
+echo "Previous (any)release: $prev_any_release"
+echo
+
 # Merge package JSONs with previous releases
 if [ ! -z "$prev_any_release" ] && [ "$prev_any_release" != "null" ]; then
     echo "Merging with JSON from $prev_any_release ..."
@@ -272,17 +287,12 @@ if [ ! -z "$prev_any_release" ] && [ "$prev_any_release" != "null" ]; then
 fi
 
 if [ "$RELEASE_PRE" == "false" ]; then
-    COMMITS_SINCE_RELEASE="$prev_release"
     if [ ! -z "$prev_release" ] && [ "$prev_release" != "null" ]; then
         echo "Merging with JSON from $prev_release ..."
         merge_package_json "$prev_release/$PACKAGE_JSON_REL" "$OUTPUT_DIR/$PACKAGE_JSON_REL"
     fi
 fi
 
-echo "Previous Release: $prev_release"
-echo "Previous (any)release: $prev_any_release"
-echo
-
 # Upload package JSONs
 echo "Uploading $PACKAGE_JSON_DEV ..."
 echo "Download URL: "`git_safe_upload_asset "$OUTPUT_DIR/$PACKAGE_JSON_DEV"`
@@ -327,21 +337,35 @@ if [ $arrLen > 3 ] && [ "${msgArray[0]:0:3}" == "tag" ]; then
 fi
 
 # Append Commit Messages
+echo
+echo "Previous Branch Release: $prev_branch_release"
+echo "Previous Branch (any)release: $prev_branch_any_release"
+echo
+commitFile="$OUTPUT_DIR/commits.txt"
+COMMITS_SINCE_RELEASE="$prev_branch_any_release"
+if [ "$RELEASE_PRE" == "false" ]; then
+    COMMITS_SINCE_RELEASE="$prev_branch_release"
+fi
 if [ ! -z "$COMMITS_SINCE_RELEASE" ] && [ "$COMMITS_SINCE_RELEASE" != "null" ]; then
     echo "Getting commits since $COMMITS_SINCE_RELEASE ..."
-    commitFile=$OUTPUT_DIR/commits.txt
-    git -C "$GITHUB_WORKSPACE" log --oneline $COMMITS_SINCE_RELEASE.. > "$OUTPUT_DIR/commits.txt"
-    releaseNotes+=$'\r\n##### Commits\r\n'
-    IFS=$'\n'
-    for next in `cat $commitFile`
-    do
-        IFS=' ' read -r commitId commitMsg <<< "$next"
-        commitLine="- [$commitId](https://github.com/$GITHUB_REPOSITORY/commit/$commitId) $commitMsg"
-        releaseNotes+="$commitLine"
-        releaseNotes+=$'\r\n'
-    done
-    rm -f $commitFile
+    git -C "$GITHUB_WORKSPACE" log --oneline -n 500 "$COMMITS_SINCE_RELEASE..HEAD" > "$commitFile"
+elif [ "$RELEASE_BRANCH" != "master" ]; then
+    echo "Getting all commits on branch '$RELEASE_BRANCH' ..."
+    git -C "$GITHUB_WORKSPACE" log --oneline -n 500 --cherry-pick --left-only --no-merges HEAD...origin/master > "$commitFile"
+else
+    echo "Getting all commits on master ..."
+    git -C "$GITHUB_WORKSPACE" log --oneline -n 500 --no-merges > "$commitFile"
 fi
+releaseNotes+=$'\r\n##### Commits\r\n'
+IFS=$'\n'
+for next in `cat $commitFile`
+do
+    IFS=' ' read -r commitId commitMsg <<< "$next"
+    commitLine="- [$commitId](https://github.com/$GITHUB_REPOSITORY/commit/$commitId) $commitMsg"
+    releaseNotes+="$commitLine"
+    releaseNotes+=$'\r\n'
+done
+rm -f $commitFile
 
 # Prepend the original release body
 if [ "${RELEASE_BODY: -1}" == $'\r' ]; then         

.github/stale.yml

@@ -12,12 +12,9 @@ onlyLabels: []
 
 # Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
 exemptLabels:
-  - pinned
-  - security
-  - "to be implemented"
-  - "for reference"
-  - "move to PR"
-  - "enhancement"
+  - "Type: For reference"
+  - "Type: To be implemented"
+  - "Type: Feature request"
 
 # Set to true to ignore issues in a project (defaults to false)
 exemptProjects: false
@@ -29,7 +26,7 @@ exemptMilestones: false
 exemptAssignees: false
 
 # Label to use when marking as stale
-staleLabel: stale
+staleLabel: Status: Stale
 
 # Comment to post when marking as stale. Set to `false` to disable
 markComment: >

.github/workflows/gh-pages.yml

@@ -4,9 +4,12 @@ on:
   push:
     branches:
     - master
+    - pages
     paths:
     - 'README.md'
     - 'docs/**'
+    - '.github/scripts/on-pages.sh'
+    - '.github/workflows/gh-pages.yml'
 
 jobs:
 

.github/workflows/release.yml

@@ -11,6 +11,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@master
+      with:
+        fetch-depth: 0
     - uses: actions/setup-python@v1
       with:
         python-version: '3.x'

.gitignore

@@ -1,10 +1,11 @@
 tools/xtensa-esp32-elf
 tools/xtensa-esp32s2-elf
+tools/riscv32-esp-elf
 tools/dist
 tools/esptool
 tools/esptool.exe
-tools/mkspiffs/mkspiffs
-tools/mkspiffs/mkspiffs.exe
+tools/mkspiffs
+tools/mklittlefs
 .DS_Store
  
 #Ignore files built by Visual Studio/Visual Micro
@@ -16,3 +17,4 @@ __vm/
 .vscode/
 platform.sloeber.txt
 boards.sloeber.txt
+tools/mklittlefs

CMakeLists.txt

@@ -7,6 +7,7 @@ set(CORE_SRCS
   cores/esp32/esp32-hal-dac.c
   cores/esp32/esp32-hal-gpio.c
   cores/esp32/esp32-hal-i2c.c
+  cores/esp32/esp32-hal-log.c
   cores/esp32/esp32-hal-ledc.c
   cores/esp32/esp32-hal-matrix.c
   cores/esp32/esp32-hal-misc.c
@@ -44,6 +45,9 @@ set(LIBRARY_SRCS
   libraries/ArduinoOTA/src/ArduinoOTA.cpp
   libraries/AsyncUDP/src/AsyncUDP.cpp
   libraries/BluetoothSerial/src/BluetoothSerial.cpp
+  libraries/BluetoothSerial/src/BTAddress.cpp
+  libraries/BluetoothSerial/src/BTAdvertisedDeviceSet.cpp
+  libraries/BluetoothSerial/src/BTScanResultsSet.cpp
   libraries/DNSServer/src/DNSServer.cpp
   libraries/EEPROM/src/EEPROM.cpp
   libraries/ESPmDNS/src/ESPmDNS.cpp
@@ -55,6 +59,11 @@ set(LIBRARY_SRCS
   libraries/LITTLEFS/src/LITTLEFS.cpp
   libraries/NetBIOS/src/NetBIOS.cpp
   libraries/Preferences/src/Preferences.cpp
+  libraries/RainMaker/src/RMaker.cpp
+  libraries/RainMaker/src/RMakerNode.cpp
+  libraries/RainMaker/src/RMakerParam.cpp
+  libraries/RainMaker/src/RMakerDevice.cpp
+  libraries/RainMaker/src/RMakerType.cpp
   libraries/SD_MMC/src/SD_MMC.cpp
   libraries/SD/src/SD.cpp
   libraries/SD/src/sd_diskio.cpp
@@ -64,6 +73,7 @@ set(LIBRARY_SRCS
   libraries/SPI/src/SPI.cpp
   libraries/Ticker/src/Ticker.cpp
   libraries/Update/src/Updater.cpp
+  libraries/Update/src/HttpsOTAUpdate.cpp
   libraries/WebServer/src/WebServer.cpp
   libraries/WebServer/src/Parsing.cpp
   libraries/WebServer/src/detail/mimetable.cpp
@@ -75,11 +85,11 @@ set(LIBRARY_SRCS
   libraries/WiFi/src/WiFi.cpp
   libraries/WiFi/src/WiFiGeneric.cpp
   libraries/WiFi/src/WiFiMulti.cpp
-  libraries/WiFi/src/WiFiProv.cpp
   libraries/WiFi/src/WiFiScan.cpp
   libraries/WiFi/src/WiFiServer.cpp
   libraries/WiFi/src/WiFiSTA.cpp
   libraries/WiFi/src/WiFiUdp.cpp
+  libraries/WiFiProv/src/WiFiProv.cpp
   libraries/Wire/src/Wire.cpp
   )
 
@@ -117,7 +127,7 @@ set(BLE_SRCS
 
 
 set(includedirs
-  variants/esp32/
+  variants/${IDF_TARGET}/
   cores/esp32/
   libraries/ArduinoOTA/src
   libraries/AsyncUDP/src
@@ -134,6 +144,7 @@ set(includedirs
   libraries/LITTLEFS/src
   libraries/NetBIOS/src
   libraries/Preferences/src
+  libraries/RainMaker/src
   libraries/SD_MMC/src
   libraries/SD/src
   libraries/SimpleBLE/src
@@ -144,13 +155,21 @@ set(includedirs
   libraries/WebServer/src
   libraries/WiFiClientSecure/src
   libraries/WiFi/src
+  libraries/WiFiProv/src
   libraries/Wire/src
   )
 
 set(srcs ${CORE_SRCS} ${LIBRARY_SRCS} ${BLE_SRCS})
 set(priv_includes cores/esp32/libb64)
 set(requires spi_flash mbedtls mdns esp_adc_cal)
-set(priv_requires fatfs nvs_flash app_update spiffs bootloader_support openssl bt tinyusb main)
+set(priv_requires fatfs nvs_flash app_update spiffs bootloader_support openssl bt arduino_tinyusb main)
+
+if(NOT CONFIG_ARDUINO_SELECTIVE_COMPILATION OR CONFIG_ARDUINO_SELECTIVE_ArduinoOTA)
+  list(APPEND priv_requires esp_https_ota)
+endif()
+if(NOT CONFIG_ARDUINO_SELECTIVE_COMPILATION OR CONFIG_ARDUINO_SELECTIVE_LITTLEFS)
+  list(APPEND priv_requires esp_littlefs)
+endif()
 
 idf_component_register(INCLUDE_DIRS ${includedirs} PRIV_INCLUDE_DIRS ${priv_includes} SRCS ${srcs} REQUIRES ${requires} PRIV_REQUIRES ${priv_requires})
 

Kconfig.projbuild

@@ -40,6 +40,12 @@ config ARDUINO_RUNNING_CORE
     default 1 if ARDUINO_RUN_CORE1
     default -1 if ARDUINO_RUN_NO_AFFINITY
 
+config ARDUINO_LOOP_STACK_SIZE
+    int "Loop thread stack size"
+    default 8192
+    help
+        Amount of stack available for the Arduino task.
+
 choice ARDUINO_EVENT_RUNNING_CORE
     bool "Core on which Arduino's event handler is running"
     default ARDUINO_EVENT_RUN_CORE1
@@ -76,6 +82,12 @@ choice ARDUINO_UDP_RUNNING_CORE
 
 endchoice
 
+config ARDUINO_UDP_TASK_PRIORITY
+    int "Priority of the UDP task"
+    default 3
+    help
+        Select at what priority you want the UDP task to run.
+
 config ARDUINO_UDP_RUNNING_CORE
     int
     default 0 if ARDUINO_UDP_RUN_CORE0
@@ -259,6 +271,12 @@ config ARDUINO_SELECTIVE_HTTPClient
     select ARDUINO_SELECTIVE_WiFiClientSecure
     default y
 
+config ARDUINO_SELECTIVE_LITTLEFS
+    bool "Enable LITTLEFS"
+    depends on ARDUINO_SELECTIVE_COMPILATION
+    select ARDUINO_SELECTIVE_FS
+    default y
+
 config ARDUINO_SELECTIVE_NetBIOS
     bool "Enable NetBIOS"
     depends on ARDUINO_SELECTIVE_COMPILATION
@@ -325,6 +343,12 @@ config ARDUINO_SELECTIVE_WiFiClientSecure
     select ARDUINO_SELECTIVE_WiFi
     default y
 
+config ARDUINO_SELECTIVE_WiFiProv
+    bool "Enable WiFiProv"
+    depends on ARDUINO_SELECTIVE_COMPILATION
+    select ARDUINO_SELECTIVE_WiFi
+    default y
+
 config ARDUINO_SELECTIVE_Wire
     bool "Enable Wire"
     depends on ARDUINO_SELECTIVE_COMPILATION

README.md

@@ -11,9 +11,11 @@
 - [ESP32Dev Board PINMAP](#esp32dev-board-pinmap)
 
 ### Development Status
-[Latest stable release ![Release Version](https://img.shields.io/github/release/espressif/arduino-esp32.svg?style=plastic) ![Release Date](https://img.shields.io/github/release-date/espressif/arduino-esp32.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/) ![Downloads](https://img.shields.io/github/downloads/espressif/arduino-esp32/latest/total.svg?style=plastic)
 
-[Latest development release ![Development Version](https://img.shields.io/github/release/espressif/arduino-esp32/all.svg?style=plastic) ![Development Date](https://img.shields.io/github/release-date-pre/espressif/arduino-esp32.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/) ![Downloads](https://img.shields.io/github/downloads-pre/espressif/arduino-esp32/latest/total.svg?style=plastic)
+Latest Stable Release  [![Release Version](https://img.shields.io/github/release/espressif/arduino-esp32.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/) [![Release Date](https://img.shields.io/github/release-date/espressif/arduino-esp32.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/) [![Downloads](https://img.shields.io/github/downloads/espressif/arduino-esp32/latest/total.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/)
+
+Latest Development Release  [![Release Version](https://img.shields.io/github/release/espressif/arduino-esp32/all.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/) [![Release Date](https://img.shields.io/github/release-date-pre/espressif/arduino-esp32.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/) [![Downloads](https://img.shields.io/github/downloads-pre/espressif/arduino-esp32/latest/total.svg?style=plastic)](https://github.com/espressif/arduino-esp32/releases/latest/)
+
 
 ### Installation Instructions
 - Using Arduino IDE Boards Manager (preferred)
@@ -42,6 +44,8 @@ Finally, if you are sure no one else had the issue, follow the [ISSUE_TEMPLATE](
 
 ![Pin Functions](docs/esp32_pinmap.png)
 
+![ESP32S2_Pinmap](docs/esp32s2_pinmap.png)
+
 ### Tip
 
 Sometimes to program ESP32 via serial you must keep GPIO0 LOW during the programming process

cores/esp32/Arduino.h

@@ -29,6 +29,7 @@
 #include <string.h>
 #include <inttypes.h>
 
+#include "esp_arduino_version.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "freertos/semphr.h"
@@ -78,7 +79,7 @@
 #define interrupts() sei()
 #define noInterrupts() cli()
 
-#define clockCyclesPerMicrosecond() ( F_CPU / 1000000L )
+#define clockCyclesPerMicrosecond() ( (long int)getCpuFrequencyMhz() )
 #define clockCyclesToMicroseconds(a) ( (a) / clockCyclesPerMicrosecond() )
 #define microsecondsToClockCycles(a) ( (a) * clockCyclesPerMicrosecond() )
 
@@ -88,7 +89,7 @@
 #define bitRead(value, bit) (((value) >> (bit)) & 0x01)
 #define bitSet(value, bit) ((value) |= (1UL << (bit)))
 #define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
-#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
+#define bitWrite(value, bit, bitvalue) ((bitvalue) ? bitSet(value, bit) : bitClear(value, bit))
 
 // avr-libc defines _NOP() since 1.6.2
 #ifndef _NOP

cores/esp32/Esp.cpp

@@ -23,7 +23,6 @@
 #include "esp_spi_flash.h"
 #include <memory>
 #include <soc/soc.h>
-#include <soc/efuse_reg.h>
 #include <esp_partition.h>
 extern "C" {
 #include "esp_ota_ops.h"
@@ -35,8 +34,11 @@ extern "C" {
 #ifdef ESP_IDF_VERSION_MAJOR // IDF 4+
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
 #include "esp32/rom/spi_flash.h"
+#include "soc/efuse_reg.h"
 #elif CONFIG_IDF_TARGET_ESP32S2
 #include "esp32s2/rom/spi_flash.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/spi_flash.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -242,6 +244,43 @@ uint8_t EspClass::getChipRevision(void)
     return chip_info.revision;
 }
 
+const char * EspClass::getChipModel(void)
+{
+#if CONFIG_IDF_TARGET_ESP32
+    uint32_t chip_ver = REG_GET_FIELD(EFUSE_BLK0_RDATA3_REG, EFUSE_RD_CHIP_VER_PKG);
+    uint32_t pkg_ver = chip_ver & 0x7;
+    switch (pkg_ver) {
+        case EFUSE_RD_CHIP_VER_PKG_ESP32D0WDQ6 :
+            return "ESP32-D0WDQ6";
+        case EFUSE_RD_CHIP_VER_PKG_ESP32D0WDQ5 :
+            return "ESP32-D0WDQ5";
+        case EFUSE_RD_CHIP_VER_PKG_ESP32D2WDQ5 :
+            return "ESP32-D2WDQ5";
+        case EFUSE_RD_CHIP_VER_PKG_ESP32PICOD2 :
+            return "ESP32-PICO-D2";
+        case EFUSE_RD_CHIP_VER_PKG_ESP32PICOD4 :
+            return "ESP32-PICO-D4";
+        case EFUSE_RD_CHIP_VER_PKG_ESP32PICOV302 :
+            return "ESP32-PICO-V3-02";
+        default:
+            return "Unknown";
+    }
+#elif CONFIG_IDF_TARGET_ESP32S2
+    return "ESP32-S2";
+#elif CONFIG_IDF_TARGET_ESP32S3
+    return "ESP32-S3";
+#elif CONFIG_IDF_TARGET_ESP32C3
+    return "ESP32-C3";
+#endif
+}
+
+uint8_t EspClass::getChipCores(void)
+{
+    esp_chip_info_t chip_info;
+    esp_chip_info(&chip_info);
+    return chip_info.cores;
+}
+
 const char * EspClass::getSdkVersion(void)
 {
     return esp_get_idf_version();
@@ -333,6 +372,20 @@ bool EspClass::flashRead(uint32_t offset, uint32_t *data, size_t size)
     return spi_flash_read(offset, (uint32_t*) data, size) == ESP_OK;
 }
 
+bool EspClass::partitionEraseRange(const esp_partition_t *partition, uint32_t offset, size_t size) 
+{
+    return esp_partition_erase_range(partition, offset, size) == ESP_OK;
+}
+
+bool EspClass::partitionWrite(const esp_partition_t *partition, uint32_t offset, uint32_t *data, size_t size) 
+{
+    return esp_partition_write(partition, offset, data, size) == ESP_OK;
+}
+
+bool EspClass::partitionRead(const esp_partition_t *partition, uint32_t offset, uint32_t *data, size_t size) 
+{
+    return esp_partition_read(partition, offset, data, size) == ESP_OK;
+}
 
 uint64_t EspClass::getEfuseMac(void)
 {

cores/esp32/Esp.h

@@ -21,6 +21,7 @@
 #define ESP_H
 
 #include <Arduino.h>
+#include <esp_partition.h>
 
 /**
  * AVR macros for WDT managment
@@ -75,6 +76,8 @@ public:
     uint32_t getMaxAllocPsram();
 
     uint8_t getChipRevision();
+    const char * getChipModel();
+    uint8_t getChipCores();
     uint32_t getCpuFreqMHz(){ return getCpuFrequencyMhz(); }
     inline uint32_t getCycleCount() __attribute__((always_inline));
     const char * getSdkVersion();
@@ -97,6 +100,10 @@ public:
     bool flashWrite(uint32_t offset, uint32_t *data, size_t size);
     bool flashRead(uint32_t offset, uint32_t *data, size_t size);
 
+    bool partitionEraseRange(const esp_partition_t *partition, uint32_t offset, size_t size);
+    bool partitionWrite(const esp_partition_t *partition, uint32_t offset, uint32_t *data, size_t size);
+    bool partitionRead(const esp_partition_t *partition, uint32_t offset, uint32_t *data, size_t size);
+
     uint64_t getEfuseMac();
 
 };

cores/esp32/HardwareSerial.cpp

@@ -50,7 +50,7 @@ HardwareSerial Serial2(2);
 
 HardwareSerial::HardwareSerial(int uart_nr) : _uart_nr(uart_nr), _uart(NULL) {}
 
-void HardwareSerial::begin(unsigned long baud, uint32_t config, int8_t rxPin, int8_t txPin, bool invert, unsigned long timeout_ms)
+void HardwareSerial::begin(unsigned long baud, uint32_t config, int8_t rxPin, int8_t txPin, bool invert, unsigned long timeout_ms, uint8_t rxfifo_full_thrhd)
 {
     if(0 > _uart_nr || _uart_nr > 2) {
         log_e("Serial number is invalid, please use 0, 1 or 2");
@@ -66,6 +66,9 @@ void HardwareSerial::begin(unsigned long baud, uint32_t config, int8_t rxPin, in
 #elif CONFIG_IDF_TARGET_ESP32S2
         rxPin = 44;
         txPin = 43;
+#elif CONFIG_IDF_TARGET_ESP32C3
+        rxPin = 20;
+        txPin = 21;
 #endif
     }
     if(_uart_nr == 1 && rxPin < 0 && txPin < 0) {
@@ -78,7 +81,9 @@ void HardwareSerial::begin(unsigned long baud, uint32_t config, int8_t rxPin, in
         txPin = TX2;
     }
 #endif
-    _uart = uartBegin(_uart_nr, baud ? baud : 9600, config, rxPin, txPin, 256, invert);
+    _uart = uartBegin(_uart_nr, baud ? baud : 9600, config, rxPin, txPin, 256, invert, rxfifo_full_thrhd);
+    _tx_pin = txPin;
+    _rx_pin = rxPin;
 
     if(!baud) {
         uartStartDetectBaudrate(_uart);
@@ -92,10 +97,12 @@ void HardwareSerial::begin(unsigned long baud, uint32_t config, int8_t rxPin, in
 
         if(detectedBaudRate) {
             delay(100); // Give some time...
-            _uart = uartBegin(_uart_nr, detectedBaudRate, config, rxPin, txPin, 256, invert);
+            _uart = uartBegin(_uart_nr, detectedBaudRate, config, rxPin, txPin, 256, invert, rxfifo_full_thrhd);
         } else {
             log_e("Could not detect baudrate. Serial data at the port must be present within the timeout for detection to be possible");
             _uart = NULL;
+            _tx_pin = 255;
+            _rx_pin = 255;
         }
     }
 }
@@ -110,7 +117,9 @@ void HardwareSerial::end()
     if(uartGetDebug() == _uart_nr) {
         uartSetDebug(0);
     }
-    uartEnd(_uart);
+    delay(10);
+    log_v("pins %d %d",_tx_pin, _rx_pin);
+    uartEnd(_uart, _tx_pin, _rx_pin);
     _uart = 0;
 }
 
@@ -205,3 +214,8 @@ HardwareSerial::operator bool() const
 {
     return true;
 }
+
+void HardwareSerial::setRxInvert(bool invert)
+{
+    uartSetRxInvert(_uart, invert);
+}

cores/esp32/HardwareSerial.h

@@ -55,7 +55,7 @@ class HardwareSerial: public Stream
 public:
     HardwareSerial(int uart_nr);
 
-    void begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=-1, int8_t txPin=-1, bool invert=false, unsigned long timeout_ms = 20000UL);
+    void begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=-1, int8_t txPin=-1, bool invert=false, unsigned long timeout_ms = 20000UL, uint8_t rxfifo_full_thrhd = 112);
     void end();
     void updateBaudRate(unsigned long baud);
     int available(void);
@@ -100,10 +100,14 @@ public:
 
     size_t setRxBufferSize(size_t);
     void setDebugOutput(bool);
+    
+    void setRxInvert(bool);
 
 protected:
     int _uart_nr;
     uart_t* _uart;
+    uint8_t _tx_pin;
+    uint8_t _rx_pin;
 };
 
 extern void serialEventRun(void) __attribute__((weak));

cores/esp32/MD5Builder.h

@@ -28,6 +28,8 @@
 #include "esp32/rom/md5_hash.h"
 #elif CONFIG_IDF_TARGET_ESP32S2
 #include "esp32s2/rom/md5_hash.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/md5_hash.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif

cores/esp32/Print.cpp

@@ -111,18 +111,12 @@ size_t Print::print(unsigned int n, int base)
 
 size_t Print::print(long n, int base)
 {
-    if(base == 0) {
-        return write(n);
-    } else if(base == 10) {
-        if(n < 0) {
-            int t = print('-');
-            n = -n;
-            return printNumber(n, 10) + t;
-        }
-        return printNumber(n, 10);
-    } else {
-        return printNumber(n, base);
+    int t = 0;
+    if (base == 10 && n < 0) {
+        t = print('-');
+        n = -n;
     }
+    return printNumber(static_cast<unsigned long>(n), base) + t;
 }
 
 size_t Print::print(unsigned long n, int base)
@@ -134,6 +128,25 @@ size_t Print::print(unsigned long n, int base)
     }
 }
 
+size_t Print::print(long long n, int base)
+{
+    int t = 0;
+    if (base == 10 && n < 0) {
+        t = print('-');
+        n = -n;
+    }
+    return printNumber(static_cast<unsigned long long>(n), base) + t;
+}
+
+size_t Print::print(unsigned long long n, int base)
+{
+    if (base == 0) {
+        return write(n);
+    } else {
+        return printNumber(n, base);
+    }
+}
+
 size_t Print::print(double n, int digits)
 {
     return printFloat(n, digits);
@@ -226,6 +239,20 @@ size_t Print::println(unsigned long num, int base)
     return n;
 }
 
+size_t Print::println(long long num, int base)
+{
+    size_t n = print(num, base);
+    n += println();
+    return n;
+}
+
+size_t Print::println(unsigned long long num, int base)
+{
+    size_t n = print(num, base);
+    n += println();
+    return n;
+}
+
 size_t Print::println(double num, int digits)
 {
     size_t n = print(num, digits);
@@ -251,7 +278,7 @@ size_t Print::println(struct tm * timeinfo, const char * format)
 
 size_t Print::printNumber(unsigned long n, uint8_t base)
 {
-    char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
+    char buf[8 * sizeof(n) + 1]; // Assumes 8-bit chars plus zero byte.
     char *str = &buf[sizeof(buf) - 1];
 
     *str = '\0';
@@ -262,11 +289,34 @@ size_t Print::printNumber(unsigned long n, uint8_t base)
     }
 
     do {
-        unsigned long m = n;
+        char c = n % base;
+        n /= base;
+
+        *--str = c < 10 ? c + '0' : c + 'A' - 10;
+    } while (n);
+
+    return write(str);
+}
+
+size_t Print::printNumber(unsigned long long n, uint8_t base)
+{
+    char buf[8 * sizeof(n) + 1]; // Assumes 8-bit chars plus zero byte.
+    char* str = &buf[sizeof(buf) - 1];
+
+    *str = '\0';
+
+    // prevent crash if called with base == 1
+    if (base < 2) {
+        base = 10;
+    }
+
+    do {
+        auto m = n;
         n /= base;
         char c = m - base * n;
+
         *--str = c < 10 ? c + '0' : c + 'A' - 10;
-    } while(n);
+    } while (n);
 
     return write(str);
 }

cores/esp32/Print.h

@@ -36,6 +36,7 @@ class Print
 private:
     int write_error;
     size_t printNumber(unsigned long, uint8_t);
+    size_t printNumber(unsigned long long, uint8_t);
     size_t printFloat(double, uint8_t);
 protected:
     void setWriteError(int err = 1)
@@ -72,6 +73,11 @@ public:
     }
 
     size_t printf(const char * format, ...)  __attribute__ ((format (printf, 2, 3)));
+
+    // add availableForWrite to make compatible with Arduino Print.h
+    // default to zero, meaning "a single write may block"
+    // should be overriden by subclasses with buffering
+    virtual int availableForWrite() { return 0; }
     size_t print(const __FlashStringHelper *);
     size_t print(const String &);
     size_t print(const char[]);
@@ -81,6 +87,8 @@ public:
     size_t print(unsigned int, int = DEC);
     size_t print(long, int = DEC);
     size_t print(unsigned long, int = DEC);
+    size_t print(long long, int = DEC);
+    size_t print(unsigned long long, int = DEC);
     size_t print(double, int = 2);
     size_t print(const Printable&);
     size_t print(struct tm * timeinfo, const char * format = NULL);
@@ -94,6 +102,8 @@ public:
     size_t println(unsigned int, int = DEC);
     size_t println(long, int = DEC);
     size_t println(unsigned long, int = DEC);
+    size_t println(long long, int = DEC);
+    size_t println(unsigned long long, int = DEC);
     size_t println(double, int = 2);
     size_t println(const Printable&);
     size_t println(struct tm * timeinfo, const char * format = NULL);

cores/esp32/Stream.cpp

@@ -87,22 +87,22 @@ unsigned long Stream::getTimeout(void) {
 }
 
 // find returns true if the target string is found
-bool Stream::find(const char *target)
+bool  Stream::find(const char *target)
 {
-    return findUntil(target, (char*) "");
+  return findUntil(target, strlen(target), NULL, 0);
 }
 
 // reads data from the stream until the target string of given length is found
 // returns true if target string is found, false if timed out
 bool Stream::find(const char *target, size_t length)
 {
-    return findUntil(target, length, NULL, 0);
+  return findUntil(target, length, NULL, 0);
 }
 
 // as find but search ends if the terminator string is found
-bool Stream::findUntil(const char *target, const char *terminator)
+bool  Stream::findUntil(const char *target, const char *terminator)
 {
-    return findUntil(target, strlen(target), terminator, strlen(terminator));
+  return findUntil(target, strlen(target), terminator, strlen(terminator));
 }
 
 // reads data from the stream until the target string of the given length is found
@@ -110,35 +110,78 @@ bool Stream::findUntil(const char *target, const char *terminator)
 // returns true if target string is found, false if terminated or timed out
 bool Stream::findUntil(const char *target, size_t targetLen, const char *terminator, size_t termLen)
 {
-    size_t index = 0;  // maximum target string length is 64k bytes!
-    size_t termIndex = 0;
-    int c;
+  if (terminator == NULL) {
+    MultiTarget t[1] = {{target, targetLen, 0}};
+    return findMulti(t, 1) == 0 ? true : false;
+  } else {
+    MultiTarget t[2] = {{target, targetLen, 0}, {terminator, termLen, 0}};
+    return findMulti(t, 2) == 0 ? true : false;
+  }
+}
 
-    if(*target == 0) {
-        return true;    // return true if target is a null string
+int Stream::findMulti( struct Stream::MultiTarget *targets, int tCount) {
+  // any zero length target string automatically matches and would make
+  // a mess of the rest of the algorithm.
+  for (struct MultiTarget *t = targets; t < targets+tCount; ++t) {
+    if (t->len <= 0)
+      return t - targets;
+  }
+
+  while (1) {
+    int c = timedRead();
+    if (c < 0)
+      return -1;
+
+    for (struct MultiTarget *t = targets; t < targets+tCount; ++t) {
+      // the simple case is if we match, deal with that first.
+      if (c == t->str[t->index]) {
+        if (++t->index == t->len)
+          return t - targets;
+        else
+          continue;
+      }
+
+      // if not we need to walk back and see if we could have matched further
+      // down the stream (ie '1112' doesn't match the first position in '11112'
+      // but it will match the second position so we can't just reset the current
+      // index to 0 when we find a mismatch.
+      if (t->index == 0)
+        continue;
+
+      int origIndex = t->index;
+      do {
+        --t->index;
+        // first check if current char works against the new current index
+        if (c != t->str[t->index])
+          continue;
+
+        // if it's the only char then we're good, nothing more to check
+        if (t->index == 0) {
+          t->index++;
+          break;
+        }
+
+        // otherwise we need to check the rest of the found string
+        int diff = origIndex - t->index;
+        size_t i;
+        for (i = 0; i < t->index; ++i) {
+          if (t->str[i] != t->str[i + diff])
+            break;
+        }
+
+        // if we successfully got through the previous loop then our current
+        // index is good.
+        if (i == t->index) {
+          t->index++;
+          break;
+        }
+
+        // otherwise we just try the next index
+      } while (t->index);
     }
-    while((c = timedRead()) > 0) {
-
-        if(c != target[index]) {
-            index = 0;    // reset index if any char does not match
-        }
-
-        if(c == target[index]) {
-            //////Serial.print("found "); Serial.write(c); Serial.print("index now"); Serial.println(index+1);
-            if(++index >= targetLen) { // return true if all chars in the target match
-                return true;
-            }
-        }
-
-        if(termLen > 0 && c == terminator[termIndex]) {
-            if(++termIndex >= termLen) {
-                return false;    // return false if terminate string found before target string
-            }
-        } else {
-            termIndex = 0;
-        }
-    }
-    return false;
+  }
+  // unreachable
+  return -1;
 }
 
 // returns the first valid (long) integer value from the current position.

cores/esp32/Stream.h

@@ -60,6 +60,7 @@ public:
 
     void setTimeout(unsigned long timeout);  // sets maximum milliseconds to wait for stream data, default is 1 second
     unsigned long getTimeout(void);
+      
     bool find(const char *target);   // reads data from the stream until the target string is found
     bool find(uint8_t *target)
     {
@@ -123,6 +124,17 @@ protected:
     // this allows format characters (typically commas) in values to be ignored
 
     float parseFloat(char skipChar);  // as above but the given skipChar is ignored
+  
+    struct MultiTarget {
+      const char *str;  // string you're searching for
+      size_t len;       // length of string you're searching for
+      size_t index;     // index used by the search routine.
+    };
+
+  // This allows you to search for an arbitrary number of strings.
+  // Returns index of the target that is found first or -1 if timeout occurs.
+  int findMulti(struct MultiTarget *targets, int tCount);
+
 };
 
 #endif

cores/esp32/USB.cpp

@@ -14,7 +14,7 @@
 #include "esp32-hal.h"
 #include "esp32-hal-tinyusb.h"
 #include "USB.h"
-#if CONFIG_USB_ENABLED
+#if CONFIG_TINYUSB_ENABLED
 
 #ifndef USB_VID
 #define USB_VID USB_ESPRESSIF_VID
@@ -32,11 +32,7 @@
 #define USB_SERIAL "0"
 #endif
 
-extern "C" {
-#include "tinyusb.h"
-}
-
-#if CFG_TUD_DFU_RT
+#if CFG_TUD_DFU_RUNTIME
 static uint16_t load_dfu_descriptor(uint8_t * dst, uint8_t * itf)
 {
 #define DFU_ATTR_CAN_DOWNLOAD              1
@@ -59,7 +55,7 @@ void tud_dfu_rt_reboot_to_dfu(void)
 {
     usb_persist_restart(RESTART_BOOTLOADER_DFU);
 }
-#endif /* CFG_TUD_DFU_RT */
+#endif /* CFG_TUD_DFU_RUNTIME */
 
 ESP_EVENT_DEFINE_BASE(ARDUINO_USB_EVENTS);
 
@@ -187,9 +183,9 @@ ESPUSB::operator bool() const
 }
 
 bool ESPUSB::enableDFU(){
-#if CFG_TUD_DFU_RT
+#if CFG_TUD_DFU_RUNTIME
     return tinyusb_enable_interface(USB_INTERFACE_DFU, TUD_DFU_RT_DESC_LEN, load_dfu_descriptor) == ESP_OK;
-#endif /* CFG_TUD_DFU_RT */
+#endif /* CFG_TUD_DFU_RUNTIME */
     return false;
 }
 
@@ -335,4 +331,4 @@ const char * ESPUSB::webUSBURL(void){
 
 ESPUSB USB;
 
-#endif /* CONFIG_USB_ENABLED */
+#endif /* CONFIG_TINYUSB_ENABLED */

cores/esp32/USB.h

@@ -14,7 +14,7 @@
 #pragma once
 
 #include "sdkconfig.h"
-#if CONFIG_USB_ENABLED
+#if CONFIG_TINYUSB_ENABLED
 
 #include "Arduino.h"
 #include "USBCDC.h"
@@ -115,4 +115,4 @@ class ESPUSB {
 
 extern ESPUSB USB;
 
-#endif /* CONFIG_USB_ENABLED */
+#endif /* CONFIG_TINYUSB_ENABLED */

cores/esp32/USBCDC.cpp

@@ -15,16 +15,12 @@
 #include "esp32-hal-tinyusb.h"
 #include "USB.h"
 #include "USBCDC.h"
-#if CONFIG_USB_ENABLED
+#if CONFIG_TINYUSB_ENABLED
 
 ESP_EVENT_DEFINE_BASE(ARDUINO_USB_CDC_EVENTS);
 esp_err_t arduino_usb_event_post(esp_event_base_t event_base, int32_t event_id, void *event_data, size_t event_data_size, TickType_t ticks_to_wait);
 esp_err_t arduino_usb_event_handler_register_with(esp_event_base_t event_base, int32_t event_id, esp_event_handler_t event_handler, void *event_handler_arg);
 
-extern "C" {
-#include "tinyusb.h"
-}
-
 #if CFG_TUD_CDC
 #define MAX_USB_CDC_DEVICES 2
 USBCDC * devices[MAX_USB_CDC_DEVICES] = {NULL, NULL};
@@ -202,22 +198,26 @@ void USBCDC::_onLineState(bool _dtr, bool _rts){
 
 void USBCDC::_onLineCoding(uint32_t _bit_rate, uint8_t _stop_bits, uint8_t _parity, uint8_t _data_bits){
     if(bit_rate != _bit_rate || data_bits != _data_bits || stop_bits != _stop_bits || parity != _parity){
-        bit_rate = _bit_rate;
-        data_bits = _data_bits;
-        stop_bits = _stop_bits;
-        parity = _parity;
-        arduino_usb_cdc_event_data_t p = {0};
-        p.line_coding.bit_rate = bit_rate;
-        p.line_coding.data_bits = data_bits;
-        p.line_coding.stop_bits = stop_bits;
-        p.line_coding.parity = parity;
-        arduino_usb_event_post(ARDUINO_USB_CDC_EVENTS, ARDUINO_USB_CDC_LINE_CODING_EVENT, &p, sizeof(arduino_usb_cdc_event_data_t), portMAX_DELAY);
+        if(bit_rate == 9600 && _bit_rate == 1200){
+            usb_persist_restart(RESTART_BOOTLOADER);
+        } else {
+            bit_rate = _bit_rate;
+            data_bits = _data_bits;
+            stop_bits = _stop_bits;
+            parity = _parity;
+            arduino_usb_cdc_event_data_t p = {0};
+            p.line_coding.bit_rate = bit_rate;
+            p.line_coding.data_bits = data_bits;
+            p.line_coding.stop_bits = stop_bits;
+            p.line_coding.parity = parity;
+            arduino_usb_event_post(ARDUINO_USB_CDC_EVENTS, ARDUINO_USB_CDC_LINE_CODING_EVENT, &p, sizeof(arduino_usb_cdc_event_data_t), portMAX_DELAY);
+        }
     }
 }
 
 void USBCDC::_onRX(){
-    uint8_t buf[CONFIG_USB_CDC_RX_BUFSIZE+1];
-    uint32_t count = tud_cdc_n_read(itf, buf, CONFIG_USB_CDC_RX_BUFSIZE);
+    uint8_t buf[CONFIG_TINYUSB_CDC_RX_BUFSIZE+1];
+    uint32_t count = tud_cdc_n_read(itf, buf, CONFIG_TINYUSB_CDC_RX_BUFSIZE);
     for(uint32_t i=0; i<count; i++){
         if(rx_queue == NULL || !xQueueSend(rx_queue, buf+i, 0)){
             return;
@@ -333,6 +333,6 @@ USBCDC::operator bool() const
 USBCDC Serial(0);
 #endif
 
-#endif /* CONFIG_USB_CDC_ENABLED */
+#endif /* CONFIG_TINYUSB_CDC_ENABLED */
 
-#endif /* CONFIG_USB_ENABLED */
+#endif /* CONFIG_TINYUSB_ENABLED */

cores/esp32/USBCDC.h

@@ -17,7 +17,7 @@
 
 #include "Stream.h"
 #include "esp32-hal.h"
-#if CONFIG_USB_CDC_ENABLED
+#if CONFIG_TINYUSB_CDC_ENABLED
 
 #include "esp_event.h"
 
@@ -130,4 +130,4 @@ protected:
 extern USBCDC Serial;
 #endif
 
-#endif /* CONFIG_USB_CDC_ENABLED */
+#endif /* CONFIG_TINYUSB_CDC_ENABLED */

cores/esp32/Udp.h

@@ -43,6 +43,7 @@ class UDP: public Stream
 
 public:
     virtual uint8_t begin(uint16_t) =0;	// initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use
+    virtual uint8_t beginMulticast(IPAddress, uint16_t) { return 0; }  // initialize, start listening on specified multicast IP address and port. Returns 1 if successful, 0 on failure
     virtual void stop() =0;  // Finish with the UDP socket
 
     // Sending UDP packets

cores/esp32/WMath.cpp

@@ -27,6 +27,7 @@ extern "C" {
 #include <stdlib.h>
 #include "esp_system.h"
 }
+#include "esp32-hal-log.h"
 
 void randomSeed(unsigned long seed)
 {
@@ -44,7 +45,7 @@ long random(long howbig)
         uint32_t t = -howbig;
         if (t >= howbig) {
             t -= howbig;
-            if (t >= howbig) 
+            if (t >= howbig)
                 t %= howbig;
         }
         while (l < t) {
@@ -66,11 +67,14 @@ long random(long howsmall, long howbig)
 }
 
 long map(long x, long in_min, long in_max, long out_min, long out_max) {
-    long divisor = (in_max - in_min);
+    const long dividend = out_max - out_min;
+    const long divisor = in_max - in_min;
+    const long delta = x - in_min;
     if(divisor == 0){
+        log_e("Invalid map input range, min == max");
         return -1; //AVR returns -1, SAM returns 0
     }
-    return (x - in_min) * (out_max - out_min) / divisor + out_min;
+    return (delta * dividend + (divisor / 2)) / divisor + out_min;
 }
 
 unsigned int makeWord(unsigned int w)

cores/esp32/WString.cpp

@@ -130,9 +130,9 @@ String::~String() {
 
 inline void String::init(void) {
     setSSO(false);
+    setBuffer(nullptr);
     setCapacity(0);
     setLen(0);
-    setBuffer(nullptr);
 }
 
 void String::invalidate(void) {
@@ -159,7 +159,7 @@ unsigned char String::changeBuffer(unsigned int maxStrLen) {
             // Already using SSO, nothing to do
 	    uint16_t oldLen = len();
             setSSO(true);
-	    setLen(oldLen);
+            setLen(oldLen);
             return 1;
         } else { // if bufptr && !isSSO()
             // Using bufptr, need to shrink into sso.buff
@@ -168,8 +168,8 @@ unsigned char String::changeBuffer(unsigned int maxStrLen) {
             free(wbuffer());
             uint16_t oldLen = len();
             setSSO(true);
-	    setLen(oldLen);
             memcpy(wbuffer(), temp, maxStrLen);
+            setLen(oldLen);
             return 1;
         }
     }
@@ -193,8 +193,8 @@ unsigned char String::changeBuffer(unsigned int maxStrLen) {
         }
         setSSO(false);
         setCapacity(newSize - 1);
-        setLen(oldLen); // Needed in case of SSO where len() never existed
         setBuffer(newbuffer);
+        setLen(oldLen); // Needed in case of SSO where len() never existed
         return 1;
     }
     return 0;
@@ -209,8 +209,8 @@ String & String::copy(const char *cstr, unsigned int length) {
         invalidate();
         return *this;
     }
-    setLen(length);
     memmove(wbuffer(), cstr, length + 1);
+    setLen(length);
     return *this;
 }
 
@@ -219,8 +219,8 @@ String & String::copy(const __FlashStringHelper *pstr, unsigned int length) {
         invalidate();
         return *this;
     }
-    setLen(length);
     memcpy_P(wbuffer(), (PGM_P)pstr, length + 1); // We know wbuffer() cannot ever be in PROGMEM, so memcpy safe here
+    setLen(length);
     return *this;
 }
 
@@ -250,8 +250,8 @@ void String::move(String &rhs) {
     setLen(rhs.len());
     rhs.setSSO(false);
     rhs.setCapacity(0);
-    rhs.setLen(0);
     rhs.setBuffer(nullptr);
+    rhs.setLen(0);
 }
 #endif
 
@@ -744,6 +744,7 @@ void String::replace(const String& find, const String& replace) {
         }
     } else if(diff < 0) {
         char *writeTo = wbuffer();
+        unsigned int l = len();
         while((foundAt = strstr(readFrom, find.buffer())) != NULL) {
             unsigned int n = foundAt - readFrom;
             memmove(writeTo, readFrom, n);
@@ -751,9 +752,10 @@ void String::replace(const String& find, const String& replace) {
             memmove(writeTo, replace.buffer(), replace.len());
             writeTo += replace.len();
             readFrom = foundAt + find.len();
-            setLen(len() + diff);
+            l += diff;
         }
         memmove(writeTo, readFrom, strlen(readFrom)+1);
+        setLen(l);
     } else {
         unsigned int size = len(); // compute size needed for result
         while((foundAt = strstr(readFrom, find.buffer())) != NULL) {
@@ -768,7 +770,7 @@ void String::replace(const String& find, const String& replace) {
         while(index >= 0 && (index = lastIndexOf(find, index)) >= 0) {
             readFrom = wbuffer() + index + find.len();
             memmove(readFrom + diff, readFrom, len() - (readFrom - buffer()));
-	    int newLen = len() + diff;
+            int newLen = len() + diff;
             memmove(wbuffer() + index, replace.buffer(), replace.len());
             setLen(newLen);
             wbuffer()[newLen] = 0;
@@ -796,8 +798,8 @@ void String::remove(unsigned int index, unsigned int count) {
     }
     char *writeTo = wbuffer() + index;
     unsigned int newlen = len() - count;
-    setLen(newlen);
     memmove(writeTo, wbuffer() + index + count, newlen - index);
+    setLen(newlen);
     wbuffer()[newlen] = 0;
 }
 
@@ -827,9 +829,9 @@ void String::trim(void) {
     while(isspace(*end) && end >= begin)
         end--;
     unsigned int newlen = end + 1 - begin;
-    setLen(newlen);
     if(begin > buffer())
         memmove(wbuffer(), begin, newlen);
+    setLen(newlen);
     wbuffer()[newlen] = 0;
 }
 

cores/esp32/WString.h

@@ -281,8 +281,8 @@ class String {
         // Contains the string info when we're not in SSO mode
         struct _ptr { 
             char *   buff;
-            uint16_t cap;
-            uint16_t len;
+            uint32_t cap;
+            uint32_t len;
         };
         // This allows strings up up to 11 (10 + \0 termination) without any extra space.
         enum { SSOSIZE = sizeof(struct _ptr) + 4 - 1 }; // Characters to allocate space for SSO, must be 12 or more
@@ -291,7 +291,11 @@ class String {
             unsigned char len   : 7; // Ensure only one byte is allocated by GCC for the bitfields
             unsigned char isSSO : 1;
         } __attribute__((packed)); // Ensure that GCC doesn't expand the flag byte to a 32-bit word for alignment issues
-        enum { CAPACITY_MAX = 65535 }; // If typeof(cap) changed from uint16_t, be sure to update this enum to the max value storable in the type
+#ifdef BOARD_HAS_PSRAM
+        enum { CAPACITY_MAX = 3145728 }; 
+#else
+        enum { CAPACITY_MAX = 65535 }; 
+#endif
         union {
             struct _ptr ptr;
             struct _sso sso;
@@ -301,9 +305,19 @@ class String {
         inline unsigned int len() const { return isSSO() ? sso.len : ptr.len; }
         inline unsigned int capacity() const { return isSSO() ? (unsigned int)SSOSIZE - 1 : ptr.cap; } // Size of max string not including terminal NUL
         inline void setSSO(bool set) { sso.isSSO = set; }
-        inline void setLen(int len) { if (isSSO()) sso.len = len; else ptr.len = len; }
+        inline void setLen(int len) {
+            if (isSSO()) {
+                sso.len = len;
+                sso.buff[len] = 0;
+            } else {
+                ptr.len = len;
+                if (ptr.buff) {
+                    ptr.buff[len] = 0;
+                }
+            }
+        }
         inline void setCapacity(int cap) { if (!isSSO()) ptr.cap = cap; }
-	inline void setBuffer(char *buff) { if (!isSSO()) ptr.buff = buff; }
+        inline void setBuffer(char *buff) { if (!isSSO()) ptr.buff = buff; }
         // Buffer accessor functions
         inline const char *buffer() const { return (const char *)(isSSO() ? sso.buff : ptr.buff); }
         inline char *wbuffer() const { return isSSO() ? const_cast<char *>(sso.buff) : ptr.buff; } // Writable version of buffer

cores/esp32/esp32-hal-adc.c

@@ -16,16 +16,15 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "esp_attr.h"
-#include "soc/rtc_io_reg.h"
 #include "soc/rtc_cntl_reg.h"
-#include "soc/sens_reg.h"
-
 #include "driver/adc.h"
 
 #include "esp_system.h"
 #ifdef ESP_IDF_VERSION_MAJOR // IDF 4+
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
 #include "esp_adc_cal.h"
+#include "soc/sens_reg.h"
+#include "soc/rtc_io_reg.h"
 #include "esp32/rom/ets_sys.h"
 #include "esp_intr_alloc.h"
 #define DEFAULT_VREF    1100
@@ -34,6 +33,10 @@ static uint16_t __analogVRef = 0;
 static uint8_t __analogVRefPin = 0;
 #elif CONFIG_IDF_TARGET_ESP32S2
 #include "esp32s2/rom/ets_sys.h"
+#include "soc/sens_reg.h"
+#include "soc/rtc_io_reg.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/ets_sys.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -51,7 +54,9 @@ void __analogSetClockDiv(uint8_t clockDiv){
         clockDiv = 1;
     }
     __analogClockDiv = clockDiv;
+#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2
     adc_set_clk_div(__analogClockDiv);
+#endif
 }
 
 void __analogSetAttenuation(adc_attenuation_t attenuation)
@@ -114,11 +119,14 @@ bool __adcAttachPin(uint8_t pin){
             WRITE_PERI_REG(SENS_SAR_TOUCH_ENABLE_REG, touch);
         }
 #endif
-    } else if(pin == 25){
+    }
+#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2
+    else if(pin == 25){
         CLEAR_PERI_REG_MASK(RTC_IO_PAD_DAC1_REG, RTC_IO_PDAC1_XPD_DAC | RTC_IO_PDAC1_DAC_XPD_FORCE);//stop dac1
     } else if(pin == 26){
         CLEAR_PERI_REG_MASK(RTC_IO_PAD_DAC2_REG, RTC_IO_PDAC2_XPD_DAC | RTC_IO_PDAC2_DAC_XPD_FORCE);//stop dac2
     }
+#endif
 
     pinMode(pin, ANALOG);
     __analogSetPinAttenuation(pin, __analogAttenuation);
@@ -183,7 +191,7 @@ uint32_t __analogReadMilliVolts(uint8_t pin){
             __analogVRef = DEFAULT_VREF;
             if(__analogVRefPin){
                 esp_adc_cal_characteristics_t chars;
-                if(adc2_vref_to_gpio(__analogVRefPin) == ESP_OK){
+                if(adc_vref_to_gpio(ADC_UNIT_2, __analogVRefPin) == ESP_OK){
                     __analogVRef = __analogRead(__analogVRefPin);
                     esp_adc_cal_characterize(1, __analogAttenuation, __analogWidth, DEFAULT_VREF, &chars);
                     __analogVRef = esp_adc_cal_raw_to_voltage(__analogVRef, &chars);

cores/esp32/esp32-hal-bt.c

@@ -18,11 +18,12 @@
 
 bool btInUse(){ return true; }
 
-#ifdef CONFIG_BLUEDROID_ENABLED
 #include "esp_bt.h"
 
-#ifdef CONFIG_CLASSIC_BT_ENABLED
+#ifdef CONFIG_BTDM_CONTROLLER_MODE_BTDM
 #define BT_MODE ESP_BT_MODE_BTDM
+#elif defined(CONFIG_BTDM_CONTROLLER_MODE_BR_EDR_ONLY)
+#define BT_MODE ESP_BT_MODE_CLASSIC_BT
 #else
 #define BT_MODE ESP_BT_MODE_BLE
 #endif
@@ -79,7 +80,7 @@ bool btStop(){
     return false;
 }
 
-#else
+#else // CONFIG_BT_ENABLED
 bool btStarted()
 {
     return false;
@@ -94,6 +95,6 @@ bool btStop()
 {
     return false;
 }
-#endif
-#endif
+
+#endif // CONFIG_BT_ENABLED
 

cores/esp32/esp32-hal-cpu.c

@@ -16,7 +16,6 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/semphr.h"
 #include "freertos/task.h"
-#include "freertos/xtensa_timer.h"
 #include "esp_attr.h"
 #include "esp_log.h"
 #include "soc/rtc.h"
@@ -29,9 +28,13 @@
 #include "esp_system.h"
 #ifdef ESP_IDF_VERSION_MAJOR // IDF 4+
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
+#include "freertos/xtensa_timer.h"
 #include "esp32/rom/rtc.h"
 #elif CONFIG_IDF_TARGET_ESP32S2
+#include "freertos/xtensa_timer.h"
 #include "esp32s2/rom/rtc.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/rtc.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -141,10 +144,14 @@ bool removeApbChangeCallback(void * arg, apb_change_cb_t cb){
 }
 
 static uint32_t calculateApb(rtc_cpu_freq_config_t * conf){
+#if CONFIG_IDF_TARGET_ESP32C3
+	return APB_CLK_FREQ;
+#else
     if(conf->freq_mhz >= 80){
         return 80 * MHZ;
     }
     return (conf->source_freq_mhz * MHZ) / conf->div;
+#endif
 }
 
 void esp_timer_impl_update_apb_freq(uint32_t apb_ticks_per_us); //private in IDF
@@ -219,8 +226,12 @@ bool setCpuFrequencyMhz(uint32_t cpu_freq_mhz){
         esp_timer_impl_update_apb_freq(apb / MHZ);
     }
     //Update FreeRTOS Tick Divisor
+#if CONFIG_IDF_TARGET_ESP32C3
+
+#else
     uint32_t fcpu = (conf.freq_mhz >= 80)?(conf.freq_mhz * MHZ):(apb);
     _xt_tick_divisor = fcpu / XT_TICK_PER_SEC;
+#endif
     //Call peripheral functions after the APB change
     if(apb_change_callbacks){
         triggerApbChangeCallback(APB_AFTER_CHANGE, capb, apb);

cores/esp32/esp32-hal-dac.c

@@ -13,24 +13,29 @@
 // limitations under the License.
 
 #include "esp32-hal.h"
-#include "esp_attr.h"
+
+#if CONFIG_IDF_TARGET_ESP32
 #include "soc/rtc_io_reg.h"
+#define DAC1 25
+#define DAC2 26
+#elif CONFIG_IDF_TARGET_ESP32S2
+#include "soc/rtc_io_reg.h"
+#define DAC1 17
+#define DAC2 18
+#elif CONFIG_IDF_TARGET_ESP32C3
+#define NODAC
+#else
+#error Target CONFIG_IDF_TARGET is not supported
+#endif
+
+#ifndef NODAC
+#include "esp_attr.h"
 #include "soc/rtc_cntl_reg.h"
 #include "soc/rtc_io_periph.h"
 #include "soc/sens_reg.h"
 #include "soc/sens_struct.h"
 #include "driver/dac.h"
 
-#if CONFIG_IDF_TARGET_ESP32
-#define DAC1 25
-#define DAC2 26
-#elif CONFIG_IDF_TARGET_ESP32S2
-#define DAC1 17
-#define DAC2 18
-#else
-#error Target CONFIG_IDF_TARGET is not supported
-#endif
-
 void ARDUINO_ISR_ATTR __dacWrite(uint8_t pin, uint8_t value)
 {
     if(pin < DAC1 || pin > DAC2){
@@ -54,3 +59,5 @@ void ARDUINO_ISR_ATTR __dacWrite(uint8_t pin, uint8_t value)
 }
 
 extern void dacWrite(uint8_t pin, uint8_t value) __attribute__ ((weak, alias("__dacWrite")));
+
+#endif

cores/esp32/esp32-hal-gpio.c

@@ -20,23 +20,25 @@
 #include "soc/gpio_reg.h"
 #include "soc/io_mux_reg.h"
 #include "soc/gpio_struct.h"
-#include "soc/rtc_io_reg.h"
-
+#include "driver/gpio.h"
 #include "esp_system.h"
+
 #ifdef ESP_IDF_VERSION_MAJOR // IDF 4+
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
 #include "esp32/rom/ets_sys.h"
 #include "esp32/rom/gpio.h"
 #include "esp_intr_alloc.h"
+#include "soc/rtc_io_reg.h"
 #define GPIO_FUNC 2
 #elif CONFIG_IDF_TARGET_ESP32S2
 #include "esp32s2/rom/ets_sys.h"
 #include "esp32s2/rom/gpio.h"
 #include "esp_intr_alloc.h"
 #include "soc/periph_defs.h"
+#include "soc/rtc_io_reg.h"
 #define GPIO_FUNC 1
 #else 
-#error Target CONFIG_IDF_TARGET is not supported
+#define USE_ESP_IDF_GPIO 1
 #endif
 #else // ESP32 Before IDF 4.0
 #include "rom/ets_sys.h"
@@ -157,7 +159,45 @@ static InterruptHandle_t __pinInterruptHandlers[SOC_GPIO_PIN_COUNT] = {0,};
 
 extern void ARDUINO_ISR_ATTR __pinMode(uint8_t pin, uint8_t mode)
 {
+#if USE_ESP_IDF_GPIO
+	if (!GPIO_IS_VALID_GPIO(pin)) {
+		return;
+	}
+	gpio_config_t conf = {
+		    .pin_bit_mask = (1ULL<<pin),			/*!< GPIO pin: set with bit mask, each bit maps to a GPIO */
+		    .mode = GPIO_MODE_DISABLE,              /*!< GPIO mode: set input/output mode                     */
+		    .pull_up_en = GPIO_PULLUP_DISABLE,      /*!< GPIO pull-up                                         */
+		    .pull_down_en = GPIO_PULLDOWN_DISABLE,  /*!< GPIO pull-down                                       */
+		    .intr_type = GPIO_INTR_DISABLE      	/*!< GPIO interrupt type                                  */
+	};
+	if (mode < 0x20) {//io
+		conf.mode = mode & (INPUT | OUTPUT);
+		if (mode & OPEN_DRAIN) {
+			conf.mode |= GPIO_MODE_DEF_OD;
+		}
+		if (mode & PULLUP) {
+			conf.pull_up_en = GPIO_PULLUP_ENABLE;
+		}
+		if (mode & PULLDOWN) {
+			conf.pull_down_en = GPIO_PULLDOWN_ENABLE;
+		}
+	}
+	gpio_config(&conf);
 
+	if(mode == SPECIAL){
+#if CONFIG_IDF_TARGET_ESP32
+		PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[pin], (uint32_t)(((pin)==RX||(pin)==TX)?0:1));
+#elif CONFIG_IDF_TARGET_ESP32S2
+		PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[pin], (uint32_t)(((pin)==RX||(pin)==TX)?0:2));
+#endif
+	} else if(mode == ANALOG){
+#if !CONFIG_IDF_TARGET_ESP32C3
+		//adc_gpio_init(ADC_UNIT_1, ADC_CHANNEL_0);
+#endif
+	} else if(mode >= 0x20 && mode < ANALOG) {//function
+		PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[pin], mode >> 5);
+	}
+#else
     if(!digitalPinIsValid(pin)) {
         return;
     }
@@ -228,11 +268,7 @@ extern void ARDUINO_ISR_ATTR __pinMode(uint8_t pin, uint8_t mode)
     pinFunction |= FUN_IE;//input enable but required for output as well?
 
     if(mode & (INPUT | OUTPUT)) {
-#if CONFIG_IDF_TARGET_ESP32
-        pinFunction |= ((uint32_t)2 << MCU_SEL_S);
-#elif CONFIG_IDF_TARGET_ESP32S2
-        pinFunction |= ((uint32_t)1 << MCU_SEL_S);
-#endif
+        pinFunction |= ((uint32_t)PIN_FUNC_GPIO << MCU_SEL_S);
     } else if(mode == SPECIAL) {
 #if CONFIG_IDF_TARGET_ESP32
         pinFunction |= ((uint32_t)(((pin)==RX||(pin)==TX)?0:1) << MCU_SEL_S);
@@ -250,10 +286,20 @@ extern void ARDUINO_ISR_ATTR __pinMode(uint8_t pin, uint8_t mode)
     }
 
     GPIO.pin[pin].val = pinControl;
+#endif
 }
 
 extern void ARDUINO_ISR_ATTR __digitalWrite(uint8_t pin, uint8_t val)
 {
+#if USE_ESP_IDF_GPIO
+	gpio_set_level((gpio_num_t)pin, val);
+#elif CONFIG_IDF_TARGET_ESP32C3
+    if (val) {
+    	GPIO.out_w1ts.out_w1ts = (1 << pin);
+    } else {
+    	GPIO.out_w1tc.out_w1tc = (1 << pin);
+    }
+#else
     if(val) {
         if(pin < 32) {
             GPIO.out_w1ts = ((uint32_t)1 << pin);
@@ -267,18 +313,37 @@ extern void ARDUINO_ISR_ATTR __digitalWrite(uint8_t pin, uint8_t val)
             GPIO.out1_w1tc.val = ((uint32_t)1 << (pin - 32));
         }
     }
+#endif
 }
 
 extern int ARDUINO_ISR_ATTR __digitalRead(uint8_t pin)
 {
+#if USE_ESP_IDF_GPIO
+	return gpio_get_level((gpio_num_t)pin);
+#elif CONFIG_IDF_TARGET_ESP32C3
+	return (GPIO.in.data >> pin) & 0x1;
+#else
     if(pin < 32) {
         return (GPIO.in >> pin) & 0x1;
     } else if(pin < GPIO_PIN_COUNT) {
         return (GPIO.in1.val >> (pin - 32)) & 0x1;
     }
     return 0;
+#endif
 }
 
+#if USE_ESP_IDF_GPIO
+static void ARDUINO_ISR_ATTR __onPinInterrupt(void * arg) {
+	InterruptHandle_t * isr = (InterruptHandle_t*)arg;
+    if(isr->fn) {
+        if(isr->arg){
+            ((voidFuncPtrArg)isr->fn)(isr->arg);
+        } else {
+        	isr->fn();
+        }
+    }
+}
+#else
 static intr_handle_t gpio_intr_handle = NULL;
 
 static void ARDUINO_ISR_ATTR __onPinInterrupt()
@@ -320,6 +385,7 @@ static void ARDUINO_ISR_ATTR __onPinInterrupt()
         } while(++pin<GPIO_PIN_COUNT);
     }
 }
+#endif
 
 extern void cleanupFunctional(void* arg);
 
@@ -328,8 +394,17 @@ extern void __attachInterruptFunctionalArg(uint8_t pin, voidFuncPtrArg userFunc,
     static bool interrupt_initialized = false;
 
     if(!interrupt_initialized) {
+#if USE_ESP_IDF_GPIO
+    	esp_err_t err = gpio_install_isr_service((int)ARDUINO_ISR_FLAG);
+    	interrupt_initialized = (err == ESP_OK) || (err == ESP_ERR_INVALID_STATE);
+#else
         interrupt_initialized = true;
         esp_intr_alloc(ETS_GPIO_INTR_SOURCE, (int)ARDUINO_ISR_FLAG, __onPinInterrupt, NULL, &gpio_intr_handle);
+#endif
+    }
+    if(!interrupt_initialized) {
+    	log_e("GPIO ISR Service Failed To Start");
+    	return;
     }
 
     // if new attach without detach remove old info
@@ -341,6 +416,14 @@ extern void __attachInterruptFunctionalArg(uint8_t pin, voidFuncPtrArg userFunc,
     __pinInterruptHandlers[pin].arg = arg;
     __pinInterruptHandlers[pin].functional = functional;
 
+#if USE_ESP_IDF_GPIO
+    gpio_set_intr_type((gpio_num_t)pin, (gpio_int_type_t)(intr_type & 0x7));
+    if(intr_type & 0x8){
+    	gpio_wakeup_enable((gpio_num_t)pin, (gpio_int_type_t)(intr_type & 0x7));
+    }
+    gpio_isr_handler_add((gpio_num_t)pin, __onPinInterrupt, &__pinInterruptHandlers[pin]);
+    gpio_intr_enable((gpio_num_t)pin);
+#else
     esp_intr_disable(gpio_intr_handle);
 #if CONFIG_IDF_TARGET_ESP32
     if(esp_intr_get_cpu(gpio_intr_handle)) { //APP_CPU
@@ -353,6 +436,7 @@ extern void __attachInterruptFunctionalArg(uint8_t pin, voidFuncPtrArg userFunc,
 #endif
     GPIO.pin[pin].int_type = intr_type;
     esp_intr_enable(gpio_intr_handle);
+#endif
 }
 
 extern void __attachInterruptArg(uint8_t pin, voidFuncPtrArg userFunc, void * arg, int intr_type)
@@ -366,7 +450,13 @@ extern void __attachInterrupt(uint8_t pin, voidFuncPtr userFunc, int intr_type)
 
 extern void __detachInterrupt(uint8_t pin)
 {
+#if USE_ESP_IDF_GPIO
+	gpio_intr_disable((gpio_num_t)pin);
+	gpio_isr_handler_remove((gpio_num_t)pin);
+	gpio_wakeup_disable((gpio_num_t)pin);
+#else
     esp_intr_disable(gpio_intr_handle);
+#endif
     if (__pinInterruptHandlers[pin].functional && __pinInterruptHandlers[pin].arg)
     {
     	cleanupFunctional(__pinInterruptHandlers[pin].arg);
@@ -375,9 +465,13 @@ extern void __detachInterrupt(uint8_t pin)
     __pinInterruptHandlers[pin].arg = NULL;
     __pinInterruptHandlers[pin].functional = false;
 
+#if USE_ESP_IDF_GPIO
+    gpio_set_intr_type((gpio_num_t)pin, GPIO_INTR_DISABLE);
+#else
     GPIO.pin[pin].int_ena = 0;
     GPIO.pin[pin].int_type = 0;
     esp_intr_enable(gpio_intr_handle);
+#endif
 }
 
 

cores/esp32/esp32-hal-gpio.h

@@ -28,7 +28,7 @@ extern "C" {
 #include "soc/soc_caps.h"
 
 #if (CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3)
-#define NUM_OUPUT_PINS  45
+#define NUM_OUPUT_PINS  46
 #define PIN_DAC1        17
 #define PIN_DAC2        18
 #else

cores/esp32/esp32-hal-i2c.c

@@ -21,16 +21,19 @@
 #include "driver/periph_ctrl.h"
 #include "soc/i2c_reg.h"
 #include "soc/i2c_struct.h"
-#include "soc/dport_reg.h"
 #include "esp_attr.h"
 #include "esp32-hal-cpu.h" // cpu clock change support 31DEC2018
 
 #include "esp_system.h"
 #ifdef ESP_IDF_VERSION_MAJOR // IDF 4+
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
+#include "soc/dport_reg.h"
 #include "esp32/rom/ets_sys.h"
 #elif CONFIG_IDF_TARGET_ESP32S2
+#include "soc/dport_reg.h"
 #include "esp32s2/rom/ets_sys.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/ets_sys.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -960,6 +963,14 @@ static void ARDUINO_ISR_ATTR i2c_isr_handler_default(void* arg)
             activeInt &=~I2C_RXFIFO_FULL_INT_ST;
         }
 
+        if(activeInt & I2C_RXFIFO_OVF_INT_ST) {
+            emptyRxFifo(p_i2c);
+            p_i2c->dev->int_clr.rx_fifo_full=1;
+            p_i2c->dev->int_ena.rx_fifo_full=1; //why?
+
+            activeInt &=~I2C_RXFIFO_OVF_INT_ST;
+        }
+
         if (activeInt & I2C_ACK_ERR_INT_ST_M) {//fatal error, abort i2c service
             if (p_i2c->mode == I2C_MASTER) {
                 i2c_update_error_byte_cnt(p_i2c); // calc which byte caused ack Error, check if address or data
@@ -1787,9 +1798,13 @@ struct i2c_struct_t {
 static i2c_t * i2c_ports[2] = {NULL, NULL};
 
 i2c_t * i2cInit(uint8_t i2c_num, int8_t sda, int8_t scl, uint32_t clk_speed){
-	if(i2c_num >= 2){
+	if(i2c_num >= SOC_I2C_NUM){
 		return NULL;
 	}
+	if(!clk_speed){
+	    //originally does not change the speed, but getFrequency and setFrequency need to be implemented first.
+	    clk_speed = 100000;
+	}
 	i2c_t * out = NULL;
 	if(i2c_ports[i2c_num] == NULL){
 		out = (i2c_t*)malloc(sizeof(i2c_t));
@@ -1804,7 +1819,7 @@ i2c_t * i2cInit(uint8_t i2c_num, int8_t sda, int8_t scl, uint32_t clk_speed){
 		i2c_driver_delete((i2c_port_t)i2c_num);
 	}
 
-    i2c_config_t conf;
+    i2c_config_t conf = { };
     conf.mode = I2C_MODE_MASTER;
     conf.scl_io_num = (gpio_num_t)scl;
     conf.sda_io_num = (gpio_num_t)sda;

cores/esp32/esp32-hal-ledc.c

@@ -17,19 +17,25 @@
 #include "freertos/task.h"
 #include "freertos/semphr.h"
 #include "esp32-hal-matrix.h"
-#include "soc/dport_reg.h"
 #include "soc/ledc_reg.h"
 #include "soc/ledc_struct.h"
+#include "driver/periph_ctrl.h"
 
 #include "esp_system.h"
 #ifdef ESP_IDF_VERSION_MAJOR // IDF 4+
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
+#include "soc/dport_reg.h"
 #include "esp32/rom/ets_sys.h"
 #define LAST_CHAN (15)
 #elif CONFIG_IDF_TARGET_ESP32S2
+#include "soc/dport_reg.h"
 #include "esp32s2/rom/ets_sys.h"
 #define LAST_CHAN (7)
 #define LEDC_DIV_NUM_HSTIMER0_V LEDC_CLK_DIV_LSTIMER0_V
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/ets_sys.h"
+#define LAST_CHAN (7)
+#define LEDC_DIV_NUM_HSTIMER0_V LEDC_CLK_DIV_LSTIMER0_V
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -111,8 +117,7 @@ static void _ledcSetupTimer(uint8_t chan, uint32_t div_num, uint8_t bit_num, boo
     static uint16_t _activeChannels = 0;
     if(!tHasStarted) {
         tHasStarted = true;
-        DPORT_SET_PERI_REG_MASK(DPORT_PERIP_CLK_EN_REG, DPORT_LEDC_CLK_EN);
-        DPORT_CLEAR_PERI_REG_MASK(DPORT_PERIP_RST_EN_REG, DPORT_LEDC_RST);
+        periph_module_enable(PERIPH_LEDC_MODULE);
         LEDC.conf.apb_clk_sel = 1;//LS use apb clock
         addApbChangeCallback((void*)&_activeChannels, _on_apb_change);
 
@@ -302,7 +307,7 @@ void ledcAttachPin(uint8_t pin, uint8_t chan)
         return;
     }
     pinMode(pin, OUTPUT);
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
     pinMatrixOutAttach(pin, LEDC_LS_SIG_OUT0_IDX + chan, false, false);
 #else
     pinMatrixOutAttach(pin, ((chan/8)?LEDC_LS_SIG_OUT0_IDX:LEDC_HS_SIG_OUT0_IDX) + (chan%8), false, false);
@@ -313,3 +318,12 @@ void ledcDetachPin(uint8_t pin)
 {
     pinMatrixOutDetach(pin, false, false);
 }
+
+double ledcChangeFrequency(uint8_t chan, double freq, uint8_t bit_num)
+{
+    if (chan > 15) {
+        return 0;
+    }
+    double res_freq = _ledcSetupTimerFreq(chan, freq, bit_num);
+    return res_freq;
+}

cores/esp32/esp32-hal-ledc.h

@@ -35,6 +35,7 @@ uint32_t    ledcRead(uint8_t channel);
 double      ledcReadFreq(uint8_t channel);
 void        ledcAttachPin(uint8_t pin, uint8_t channel);
 void        ledcDetachPin(uint8_t pin);
+double      ledcChangeFrequency(uint8_t channel, double freq, uint8_t resolution_bits);
 
 
 #ifdef __cplusplus

cores/esp32/esp32-hal-log.c

@@ -0,0 +1,19 @@
+#ifndef __MY_LOG__
+#define __MY_LOG__
+#include "stdio.h"
+#include "esp32-hal-log.h"
+void log_to_esp(char* tag, esp_log_level_t level, const char *format, ...)
+{
+    va_list va_args;
+    va_start(va_args, format);
+
+    char log_buffer[512];
+    int len = vsnprintf(log_buffer, sizeof(log_buffer), format, va_args);
+    if (len > 0)
+    {
+        ESP_LOG_LEVEL_LOCAL(level, tag, "%s", log_buffer);
+    }
+
+    va_end(va_args);
+}
+#endif

cores/esp32/esp32-hal-log.h

@@ -37,6 +37,9 @@ extern "C"
 #define ARDUHAL_LOG_LEVEL CONFIG_ARDUHAL_LOG_DEFAULT_LEVEL
 #else
 #define ARDUHAL_LOG_LEVEL CORE_DEBUG_LEVEL
+#ifdef USE_ESP_IDF_LOG
+#define LOG_LOCAL_LEVEL CORE_DEBUG_LEVEL
+#endif
 #endif
 
 #ifndef CONFIG_ARDUHAL_LOG_COLORS
@@ -72,6 +75,8 @@ extern "C"
 #define ARDUHAL_LOG_RESET_COLOR
 #endif
 
+
+
 const char * pathToFileName(const char * path);
 int log_printf(const char *fmt, ...);
 
@@ -79,55 +84,92 @@ int log_printf(const char *fmt, ...);
 #define ARDUHAL_LOG_FORMAT(letter, format)  ARDUHAL_LOG_COLOR_ ## letter "[%6u][" #letter "][%s:%u] %s(): " format ARDUHAL_LOG_RESET_COLOR "\r\n", (unsigned long) (esp_timer_get_time() / 1000ULL), pathToFileName(__FILE__), __LINE__, __FUNCTION__
 
 #if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_VERBOSE
+#ifndef USE_ESP_IDF_LOG
 #define log_v(format, ...) log_printf(ARDUHAL_LOG_FORMAT(V, format), ##__VA_ARGS__)
 #define isr_log_v(format, ...) ets_printf(ARDUHAL_LOG_FORMAT(V, format), ##__VA_ARGS__)
 #else
+#define log_v(format, ...) do {log_to_esp(TAG, ESP_LOG_VERBOSE, format, ##__VA_ARGS__);}while(0)
+#define isr_log_v(format, ...) do {ets_printf(LOG_FORMAT(V, format), esp_log_timestamp(), TAG, ##__VA_ARGS__);}while(0)
+#endif
+#else
 #define log_v(format, ...)
 #define isr_log_v(format, ...)
 #endif
 
 #if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_DEBUG
+#ifndef USE_ESP_IDF_LOG
 #define log_d(format, ...) log_printf(ARDUHAL_LOG_FORMAT(D, format), ##__VA_ARGS__)
 #define isr_log_d(format, ...) ets_printf(ARDUHAL_LOG_FORMAT(D, format), ##__VA_ARGS__)
 #else
+#define log_d(format, ...) do {log_to_esp(TAG, ESP_LOG_DEBUG, format, ##__VA_ARGS__);}while(0)
+#define isr_log_d(format, ...) do {ets_printf(LOG_FORMAT(D, format), esp_log_timestamp(), TAG, ##__VA_ARGS__);}while(0)
+#endif
+#else
 #define log_d(format, ...)
 #define isr_log_d(format, ...)
 #endif
 
 #if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_INFO
+#ifndef USE_ESP_IDF_LOG
 #define log_i(format, ...) log_printf(ARDUHAL_LOG_FORMAT(I, format), ##__VA_ARGS__)
 #define isr_log_i(format, ...) ets_printf(ARDUHAL_LOG_FORMAT(I, format), ##__VA_ARGS__)
 #else
+#define log_i(format, ...) do {log_to_esp(TAG, ESP_LOG_INFO, format, ##__VA_ARGS__);}while(0)
+#define isr_log_i(format, ...) do {ets_printf(LOG_FORMAT(I, format), esp_log_timestamp(), TAG, ##__VA_ARGS__);}while(0)
+#endif
+#else
 #define log_i(format, ...)
 #define isr_log_i(format, ...)
 #endif
 
 #if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_WARN
+#ifndef USE_ESP_IDF_LOG
 #define log_w(format, ...) log_printf(ARDUHAL_LOG_FORMAT(W, format), ##__VA_ARGS__)
 #define isr_log_w(format, ...) ets_printf(ARDUHAL_LOG_FORMAT(W, format), ##__VA_ARGS__)
 #else
+#define log_w(format, ...) do {log_to_esp(TAG, ESP_LOG_WARN, format, ##__VA_ARGS__);}while(0)
+#define isr_log_w(format, ...) do {ets_printf(LOG_FORMAT(W, format), esp_log_timestamp(), TAG, ##__VA_ARGS__);}while(0)
+#endif
+#else
 #define log_w(format, ...)
 #define isr_log_w(format, ...)
 #endif
 
 #if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_ERROR
+#ifndef USE_ESP_IDF_LOG
 #define log_e(format, ...) log_printf(ARDUHAL_LOG_FORMAT(E, format), ##__VA_ARGS__)
 #define isr_log_e(format, ...) ets_printf(ARDUHAL_LOG_FORMAT(E, format), ##__VA_ARGS__)
 #else
+#define log_e(format, ...) do {log_to_esp(TAG, ESP_LOG_ERROR, format, ##__VA_ARGS__);}while(0)
+#define isr_log_e(format, ...) do {ets_printf(LOG_FORMAT(E, format), esp_log_timestamp(), TAG, ##__VA_ARGS__);}while(0)
+#endif
+#else
 #define log_e(format, ...)
 #define isr_log_e(format, ...)
 #endif
 
 #if ARDUHAL_LOG_LEVEL >= ARDUHAL_LOG_LEVEL_NONE
+#ifndef USE_ESP_IDF_LOG
 #define log_n(format, ...) log_printf(ARDUHAL_LOG_FORMAT(E, format), ##__VA_ARGS__)
 #define isr_log_n(format, ...) ets_printf(ARDUHAL_LOG_FORMAT(E, format), ##__VA_ARGS__)
 #else
+#define log_n(format, ...) do {log_to_esp(TAG, ESP_LOG_ERROR, format, ##__VA_ARGS__);}while(0)
+#define isr_log_n(format, ...) do {ets_printf(LOG_FORMAT(E, format), esp_log_timestamp(), TAG, ##__VA_ARGS__);}while(0)
+#endif
+#else
 #define log_n(format, ...)
 #define isr_log_n(format, ...)
 #endif
 
 #include "esp_log.h"
 
+#ifdef USE_ESP_IDF_LOG
+#ifndef TAG
+#define TAG "ARDUINO"
+#endif
+void log_to_esp(char* tag, esp_log_level_t level, const char* format, ...);
+//#define log_n(format, ...) myLog(ESP_LOG_NONE, format, ##__VA_ARGS__)
+#else
 #ifdef CONFIG_ARDUHAL_ESP_LOG
 #undef ESP_LOGE
 #undef ESP_LOGW
@@ -151,6 +193,7 @@ int log_printf(const char *fmt, ...);
 #define ESP_EARLY_LOGD(tag, ...)  isr_log_d(__VA_ARGS__)
 #define ESP_EARLY_LOGV(tag, ...)  isr_log_v(__VA_ARGS__)
 #endif
+#endif
 
 #ifdef __cplusplus
 }

cores/esp32/esp32-hal-matrix.c

@@ -21,6 +21,8 @@
 #include "esp32/rom/gpio.h"
 #elif CONFIG_IDF_TARGET_ESP32S2
 #include "esp32s2/rom/gpio.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/gpio.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif

cores/esp32/esp32-hal-misc.c

@@ -40,6 +40,10 @@
 #include "esp32/rom/rtc.h"
 #elif CONFIG_IDF_TARGET_ESP32S2
 #include "esp32s2/rom/rtc.h"
+#include "driver/temp_sensor.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/rtc.h"
+#include "driver/temp_sensor.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -49,12 +53,25 @@
 
 //Undocumented!!! Get chip temperature in Farenheit
 //Source: https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchbook/ESP32_int_temp_sensor/ESP32_int_temp_sensor.ino
+#ifdef CONFIG_IDF_TARGET_ESP32
 uint8_t temprature_sens_read();
 
 float temperatureRead()
 {
     return (temprature_sens_read() - 32) / 1.8;
 }
+#else
+float temperatureRead()
+{
+    float result = NAN;
+    temp_sensor_config_t tsens = TSENS_CONFIG_DEFAULT();
+    temp_sensor_set_config(tsens);
+    temp_sensor_start();
+    temp_sensor_read_celsius(&result); 
+    temp_sensor_stop();
+    return result;
+}
+#endif
 
 void __yield()
 {
@@ -160,15 +177,15 @@ void delay(uint32_t ms)
 
 void ARDUINO_ISR_ATTR delayMicroseconds(uint32_t us)
 {
-    uint32_t m = micros();
+    uint64_t m = (uint64_t)esp_timer_get_time();
     if(us){
-        uint32_t e = (m + us);
+        uint64_t e = (m + us);
         if(m > e){ //overflow
-            while(micros() > e){
+            while((uint64_t)esp_timer_get_time() > e){
                 NOP();
             }
         }
-        while(micros() < e){
+        while((uint64_t)esp_timer_get_time() < e){
             NOP();
         }
     }

cores/esp32/esp32-hal-psram.c

@@ -51,7 +51,6 @@ bool psramInit(){
         log_w("PSRAM not supported!");
         return false;
     }
-    esp_spiram_init_cache();
 #elif CONFIG_IDF_TARGET_ESP32S2
     extern void esp_config_data_cache_mode(void);
     esp_config_data_cache_mode();

cores/esp32/esp32-hal-rmt.c

@@ -28,15 +28,27 @@
  */
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
 #define MAX_CHANNELS 8
+#define MAX_DATA_PER_CHANNEL 64
+#define MAX_DATA_PER_ITTERATION 62
 #elif CONFIG_IDF_TARGET_ESP32S2
 #define MAX_CHANNELS 4
+#define MAX_DATA_PER_CHANNEL 64
+#define MAX_DATA_PER_ITTERATION 62
+#elif CONFIG_IDF_TARGET_ESP32C3
+#define MAX_CHANNELS 4
+#define MAX_DATA_PER_CHANNEL 48
+#define MAX_DATA_PER_ITTERATION 46
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
-#define MAX_DATA_PER_CHANNEL 64
-#define MAX_DATA_PER_ITTERATION 62
 #define _ABS(a) (a>0?a:-a)
 #define _LIMIT(a,b) (a>b?b:a)
+#if CONFIG_IDF_TARGET_ESP32C3
+#define _INT_TX_END(channel) (1<<(channel))
+#define _INT_RX_END(channel) (4<<(channel))
+#define _INT_ERROR(channel)  (16<<(channel))
+#define _INT_THR_EVNT(channel)  (256<<(channel))
+#else
 #define __INT_TX_END     (1)
 #define __INT_RX_END     (2)
 #define __INT_ERROR      (4)
@@ -46,6 +58,7 @@
 #define _INT_RX_END(channel) (__INT_RX_END<<(channel*3))
 #define _INT_ERROR(channel)  (__INT_ERROR<<(channel*3))
 #define _INT_THR_EVNT(channel)  ((__INT_THR_EVNT)<<(channel))
+#endif
 
 #if CONFIG_DISABLE_HAL_LOCKS
 # define RMT_MUTEX_LOCK(channel)
@@ -55,7 +68,7 @@
 # define RMT_MUTEX_UNLOCK(channel)  xSemaphoreGive(g_rmt_objlocks[channel])
 #endif /* CONFIG_DISABLE_HAL_LOCKS */
 
-#define _RMT_INTERNAL_DEBUG
+//#define _RMT_INTERNAL_DEBUG
 #ifdef _RMT_INTERNAL_DEBUG
 # define DEBUG_INTERRUPT_START(pin)    digitalWrite(pin, 1);
 # define DEBUG_INTERRUPT_END(pin)      digitalWrite(pin, 0);
@@ -96,6 +109,7 @@ struct rmt_obj_s
     transaction_state_t tx_state;
     rmt_rx_data_cb_t cb;
     bool data_alloc;
+    void * arg;
 };
 
 /**
@@ -109,15 +123,15 @@ static xSemaphoreHandle g_rmt_objlocks[MAX_CHANNELS] = {
 };
 
 static rmt_obj_t g_rmt_objects[MAX_CHANNELS] = {
-    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false},
-    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false},
-    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false},
-    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false},
+    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false, NULL},
+    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false, NULL},
+    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false, NULL},
+    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false, NULL},
 #if CONFIG_IDF_TARGET_ESP32
-    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false},
-    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false},
-    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false},
-    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false},
+    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false, NULL},
+    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false, NULL},
+    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false, NULL},
+    { false, NULL, 0, 0, 0, 0, 0, NULL, E_NO_INTR, E_INACTIVE, NULL, false, NULL},
 #endif
 };
 
@@ -161,12 +175,17 @@ bool rmtSetCarrier(rmt_obj_t* rmt, bool carrier_en, bool carrier_level, uint32_t
     size_t channel = rmt->channel;
 
     RMT_MUTEX_LOCK(channel);
-
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.tx_carrier[channel].low = low;
+    RMT.tx_carrier[channel].high = high;
+    RMT.rx_conf[channel].conf0.carrier_en = carrier_en;
+    RMT.rx_conf[channel].conf0.carrier_out_lv = carrier_level;
+#else
     RMT.carrier_duty_ch[channel].low = low;
     RMT.carrier_duty_ch[channel].high = high;
     RMT.conf_ch[channel].conf0.carrier_en = carrier_en;
     RMT.conf_ch[channel].conf0.carrier_out_lv = carrier_level;
-
+#endif
     RMT_MUTEX_UNLOCK(channel);
 
     return true;
@@ -182,8 +201,13 @@ bool rmtSetFilter(rmt_obj_t* rmt, bool filter_en, uint32_t filter_level)
 
     RMT_MUTEX_LOCK(channel);
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.rx_conf[channel].conf1.rx_filter_thres = filter_level;
+    RMT.rx_conf[channel].conf1.rx_filter_en = filter_en;
+#else
     RMT.conf_ch[channel].conf1.rx_filter_thres = filter_level;
     RMT.conf_ch[channel].conf1.rx_filter_en = filter_en;
+#endif
 
     RMT_MUTEX_UNLOCK(channel);
 
@@ -199,7 +223,11 @@ bool rmtSetRxThreshold(rmt_obj_t* rmt, uint32_t value)
     size_t channel = rmt->channel;
 
     RMT_MUTEX_LOCK(channel);
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.rx_conf[channel].conf0.idle_thres = value;
+#else
     RMT.conf_ch[channel].conf0.idle_thres = value;
+#endif
     RMT_MUTEX_UNLOCK(channel);
 
     return true;
@@ -264,7 +292,7 @@ bool rmtWrite(rmt_obj_t* rmt, rmt_data_t* data, size_t size)
     int channel = rmt->channel;
     int allocated_size = MAX_DATA_PER_CHANNEL * rmt->buffers;
 
-    if (size > allocated_size) {
+    if (size > (allocated_size - 1)) {
 
         int half_tx_nr = MAX_DATA_PER_ITTERATION/2;
         RMT_MUTEX_LOCK(channel);
@@ -278,6 +306,18 @@ bool rmtWrite(rmt_obj_t* rmt, rmt_data_t* data, size_t size)
         rmt->intr_mode = E_TX_INTR | E_TXTHR_INTR;
         rmt->tx_state = E_SET_CONTI | E_FIRST_HALF;
 
+#if CONFIG_IDF_TARGET_ESP32C3
+        //uint32_t val = RMT.tx_conf[channel].val;
+        // init the tx limit for interruption
+        RMT.tx_lim[channel].limit = half_tx_nr+2;
+        //RMT.tx_conf[channel].val = val;
+        //RMT.tx_conf[channel].conf_update = 1;
+        // reset memory pointer
+        RMT.tx_conf[channel].mem_rst = 1;
+        //RMT.tx_conf[channel].mem_rst = 0;
+        RMT.tx_conf[channel].mem_rd_rst = 1;
+        //RMT.tx_conf[channel].mem_rd_rst = 0;
+#else
         // init the tx limit for interruption
         RMT.tx_lim_ch[channel].limit = half_tx_nr+2;
         // reset memory pointer
@@ -287,9 +327,9 @@ bool rmtWrite(rmt_obj_t* rmt, rmt_data_t* data, size_t size)
         RMT.conf_ch[channel].conf1.mem_rd_rst = 0;
         RMT.conf_ch[channel].conf1.mem_wr_rst = 1;
         RMT.conf_ch[channel].conf1.mem_wr_rst = 0;
-
+#endif
         // set the tx end mark
-        RMTMEM.chan[channel].data32[MAX_DATA_PER_ITTERATION].val = 0;
+        //RMTMEM.chan[channel].data32[MAX_DATA_PER_ITTERATION].val = 0;
 
         // clear and enable both Tx completed and half tx event
         RMT.int_clr.val = _INT_TX_END(channel);
@@ -303,6 +343,7 @@ bool rmtWrite(rmt_obj_t* rmt, rmt_data_t* data, size_t size)
         RMT_MUTEX_UNLOCK(channel);
 
         // start the transation
+        //return _rmtSendOnce(rmt, data, MAX_DATA_PER_ITTERATION, true);
         return _rmtSendOnce(rmt, data, MAX_DATA_PER_ITTERATION, false);
     } else {
         // use one-go mode if data fits one buffer 
@@ -330,6 +371,7 @@ bool rmtReadData(rmt_obj_t* rmt, uint32_t* data, size_t size)
     return true;
 }
 
+
 bool rmtBeginReceive(rmt_obj_t* rmt)
 {
     if (!rmt) {
@@ -340,10 +382,15 @@ bool rmtBeginReceive(rmt_obj_t* rmt)
     RMT.int_clr.val = _INT_ERROR(channel);
     RMT.int_ena.val |= _INT_ERROR(channel);
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.rx_conf[channel].conf1.mem_owner = 1;
+    RMT.rx_conf[channel].conf1.mem_wr_rst = 1;
+    RMT.rx_conf[channel].conf1.rx_en = 1;
+#else
     RMT.conf_ch[channel].conf1.mem_owner = 1;
     RMT.conf_ch[channel].conf1.mem_wr_rst = 1;
     RMT.conf_ch[channel].conf1.rx_en = 1;
-
+#endif
     return true;
 }
 
@@ -363,7 +410,7 @@ bool rmtReceiveCompleted(rmt_obj_t* rmt)
     }
 }
 
-bool rmtRead(rmt_obj_t* rmt, rmt_rx_data_cb_t cb)
+bool rmtRead(rmt_obj_t* rmt, rmt_rx_data_cb_t cb, void * arg)
 {
     if (!rmt && !cb) {
         return false;
@@ -371,6 +418,7 @@ bool rmtRead(rmt_obj_t* rmt, rmt_rx_data_cb_t cb)
     int channel = rmt->channel;
 
     RMT_MUTEX_LOCK(channel);
+    rmt->arg = arg;
     rmt->intr_mode = E_RX_INTR;
     rmt->tx_state = E_FIRST_HALF;
     rmt->cb = cb;
@@ -381,22 +429,48 @@ bool rmtRead(rmt_obj_t* rmt, rmt_rx_data_cb_t cb)
         rmt->data_alloc = true;
     }
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.rx_conf[channel].conf1.mem_owner = 1;
+#else
     RMT.conf_ch[channel].conf1.mem_owner = 1;
-
+#endif
     RMT.int_clr.val = _INT_RX_END(channel);
     RMT.int_clr.val = _INT_ERROR(channel);
     
     RMT.int_ena.val |= _INT_RX_END(channel);
     RMT.int_ena.val |= _INT_ERROR(channel);
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.rx_conf[channel].conf1.mem_wr_rst = 1;
+
+    RMT.rx_conf[channel].conf1.rx_en = 1;
+#else
     RMT.conf_ch[channel].conf1.mem_wr_rst = 1;
 
     RMT.conf_ch[channel].conf1.rx_en = 1;
+#endif
     RMT_MUTEX_UNLOCK(channel);
 
     return true;
 }
 
+bool rmtEnd(rmt_obj_t* rmt) {
+    if (!rmt) {
+        return false;
+    }
+    int channel = rmt->channel;
+
+    RMT_MUTEX_LOCK(channel);
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.rx_conf[channel].conf1.rx_en = 1;
+#else
+    RMT.conf_ch[channel].conf1.rx_en = 1;
+#endif
+    RMT_MUTEX_UNLOCK(channel);
+
+    return  true;
+}
+
 bool rmtReadAsync(rmt_obj_t* rmt, rmt_data_t* data, size_t size, void* eventFlag, bool waitForData, uint32_t timeout)
 {
     if (!rmt) {
@@ -421,7 +495,11 @@ bool rmtReadAsync(rmt_obj_t* rmt, rmt_data_t* data, size_t size, void* eventFlag
     RMT_MUTEX_LOCK(channel);
     rmt->intr_mode = E_RX_INTR;
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.rx_conf[channel].conf1.mem_owner = 1;
+#else
     RMT.conf_ch[channel].conf1.mem_owner = 1;
+#endif
 
     RMT.int_clr.val = _INT_RX_END(channel);
     RMT.int_clr.val = _INT_ERROR(channel);
@@ -429,9 +507,15 @@ bool rmtReadAsync(rmt_obj_t* rmt, rmt_data_t* data, size_t size, void* eventFlag
     RMT.int_ena.val |= _INT_RX_END(channel);
     RMT.int_ena.val |= _INT_ERROR(channel);
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.rx_conf[channel].conf1.mem_wr_rst = 1;
+
+    RMT.rx_conf[channel].conf1.rx_en = 1;
+#else
     RMT.conf_ch[channel].conf1.mem_wr_rst = 1;
 
     RMT.conf_ch[channel].conf1.rx_en = 1;
+#endif
     RMT_MUTEX_UNLOCK(channel);
 
     // wait for data if requested so
@@ -458,14 +542,20 @@ float rmtSetTick(rmt_obj_t* rmt, float tick)
      * rmt tick for 1 MHz  -> 1us (1x)        div_cnt = 0x01
                               256us (256x)    div_cnt = 0x00
     */
-    int apb_div = _LIMIT(tick/12.5, 256);
-    int ref_div = _LIMIT(tick/1000, 256);
-
-    float apb_tick = 12.5 * apb_div;
-    float ref_tick = 1000.0 * ref_div;
     
     size_t channel = rmt->channel;
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    int apb_div = _LIMIT(tick/25.0, 256);
+    float apb_tick = 25.0 * apb_div;
+    RMT.tx_conf[channel].div_cnt = apb_div & 0xFF;
+    RMT.tx_conf[channel].conf_update = 1;
+    return apb_tick;
+#else
+    int apb_div = _LIMIT(tick/12.5, 256);
+    int ref_div = _LIMIT(tick/1000, 256);
+    float apb_tick = 12.5 * apb_div;
+    float ref_tick = 1000.0 * ref_div;
     if (_ABS(apb_tick - tick) < _ABS(ref_tick - tick)) {
         RMT.conf_ch[channel].conf0.div_cnt = apb_div & 0xFF;
         RMT.conf_ch[channel].conf1.ref_always_on = 1;
@@ -475,6 +565,7 @@ float rmtSetTick(rmt_obj_t* rmt, float tick)
         RMT.conf_ch[channel].conf1.ref_always_on = 0;
         return ref_tick;
     }
+#endif
 }
 
 rmt_obj_t* rmtInit(int pin, bool tx_not_rx, rmt_reserve_memsize_t memsize)
@@ -529,12 +620,55 @@ rmt_obj_t* rmtInit(int pin, bool tx_not_rx, rmt_reserve_memsize_t memsize)
     rmt->tx_not_rx = tx_not_rx;
     rmt->buffers =buffers;
     rmt->channel = channel;
+    rmt->arg = NULL;
+
     _initPin(pin, channel, tx_not_rx);
 
     // Initialize the registers in default mode:
     // - no carrier, filter
     // - timebase tick of 1us
     // - idle threshold set to 0x8000 (max pulse width + 1)
+#if CONFIG_IDF_TARGET_ESP32C3
+
+    RMT.sys_conf.fifo_mask = 1;
+
+    if (tx_not_rx) {
+    	RMT.tx_lim[channel].limit = MAX_DATA_PER_ITTERATION/2 + 2;
+    	RMT.tx_conf[channel].val = 0;
+//        RMT.tx_conf[channel].carrier_en = 0;
+//        RMT.tx_conf[channel].carrier_out_lv = 0;
+//        RMT.tx_conf[channel].tx_conti_mode = 0;
+//        RMT.tx_conf[channel].idle_out_lv = 0;     // signal level for idle
+//        RMT.tx_conf[channel].tx_start = 0;
+//        RMT.tx_conf[channel].tx_stop = 0;
+//        RMT.tx_conf[channel].carrier_eff_en = 0;
+//        RMT.tx_conf[channel].afifo_rst = 0;
+//        RMT.tx_conf[channel].conf_update = 0;
+//        RMT.tx_conf[channel].mem_tx_wrap_en = 0;
+//        RMT.tx_conf[channel].mem_rst = 1;
+
+        RMT.tx_conf[channel].idle_out_en = 1;     // enable idle
+        RMT.tx_conf[channel].div_cnt = 1;
+        RMT.tx_conf[channel].mem_size = buffers;
+        RMT.tx_conf[channel].mem_rd_rst = 1;
+        RMT.tx_conf[channel].conf_update = 1;
+    } else {
+        RMT.rx_conf[channel].conf0.div_cnt = 1;
+        RMT.rx_conf[channel].conf0.mem_size = buffers;
+        RMT.rx_conf[channel].conf0.carrier_en = 0;
+        RMT.rx_conf[channel].conf0.carrier_out_lv = 0;
+        RMT.rx_conf[channel].conf0.idle_thres = 0x80;
+        RMT.rx_conf[channel].conf1.rx_filter_en = 0;
+        RMT.rx_conf[channel].conf1.rx_filter_thres = 0;
+        RMT.rx_conf[channel].conf1.mem_rst = 0;
+        RMT.rx_conf[channel].conf1.mem_rx_wrap_en = 0;
+        RMT.rx_conf[channel].conf1.afifo_rst = 0;
+        RMT.rx_conf[channel].conf1.conf_update = 0;
+        RMT.rx_conf[channel].conf1.rx_en = 1;
+        RMT.rx_conf[channel].conf1.mem_owner = 1;
+        RMT.rx_conf[channel].conf1.mem_wr_rst = 1;
+    }
+#else
     RMT.conf_ch[channel].conf0.div_cnt = 1;
     RMT.conf_ch[channel].conf0.mem_size = buffers;
     RMT.conf_ch[channel].conf0.carrier_en = 0;
@@ -555,6 +689,7 @@ rmt_obj_t* rmtInit(int pin, bool tx_not_rx, rmt_reserve_memsize_t memsize)
     RMT.conf_ch[channel].conf1.idle_out_lv = 0;     // signal level for idle
     RMT.conf_ch[channel].conf1.idle_out_en = 1;     // enable idle
     RMT.conf_ch[channel].conf1.ref_always_on = 0;     // base clock
+
     RMT.apb_conf.fifo_mask = 1;
 
     if (tx_not_rx) {
@@ -566,7 +701,7 @@ rmt_obj_t* rmtInit(int pin, bool tx_not_rx, rmt_reserve_memsize_t memsize)
         RMT.conf_ch[channel].conf1.mem_owner = 1;
         RMT.conf_ch[channel].conf1.mem_wr_rst = 1;
     }
-
+#endif
     // install interrupt if at least one channel is active
     if (!intr_handle) {
         esp_intr_alloc(ETS_RMT_INTR_SOURCE, (int)ARDUINO_ISR_FLAG, _rmt_isr, NULL, &intr_handle);
@@ -585,7 +720,11 @@ bool _rmtSendOnce(rmt_obj_t* rmt, rmt_data_t* data, size_t size, bool continuous
         return false;
     }
     int channel = rmt->channel;
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.sys_conf.fifo_mask = 1;
+#else
     RMT.apb_conf.fifo_mask = 1;
+#endif
     if (data && size>0) {
         size_t i;
         volatile uint32_t* rmt_mem_ptr = &(RMTMEM.chan[channel].data32[0].val);
@@ -597,9 +736,15 @@ bool _rmtSendOnce(rmt_obj_t* rmt, rmt_data_t* data, size_t size, bool continuous
     }
 
     RMT_MUTEX_LOCK(channel);
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.tx_conf[channel].tx_conti_mode = continuous;
+    RMT.tx_conf[channel].mem_rd_rst = 1;
+    RMT.tx_conf[channel].tx_start = 1;
+#else
     RMT.conf_ch[channel].conf1.tx_conti_mode = continuous;
     RMT.conf_ch[channel].conf1.mem_rd_rst = 1;
     RMT.conf_ch[channel].conf1.tx_start = 1;
+#endif
     RMT_MUTEX_UNLOCK(channel);
 
     return true;
@@ -624,6 +769,7 @@ static void _initPin(int pin, int channel, bool tx_not_rx)
 {
     if (!periph_enabled) {
         periph_enabled = true;
+        periph_module_reset( PERIPH_RMT_MODULE );
         periph_module_enable( PERIPH_RMT_MODULE );
     }
     if (tx_not_rx) {
@@ -639,6 +785,7 @@ static void _initPin(int pin, int channel, bool tx_not_rx)
 
 static void ARDUINO_ISR_ATTR _rmt_isr(void* arg)
 {
+	//DEBUG_INTERRUPT_START(4);
     int intr_val = RMT.int_st.val;
     size_t ch;
     for (ch = 0; ch < MAX_CHANNELS; ch++) {
@@ -670,12 +817,18 @@ static void ARDUINO_ISR_ATTR _rmt_isr(void* arg)
                     }
                     if (g_rmt_objects[ch].cb) {
                         // actually received data ptr                        
-                        (g_rmt_objects[ch].cb)(data_received, _rmt_get_mem_len(ch));
+                        (g_rmt_objects[ch].cb)(data_received, _rmt_get_mem_len(ch), g_rmt_objects[ch].arg);
 
                         // restart the reception
+#if CONFIG_IDF_TARGET_ESP32C3
+                        RMT.rx_conf[ch].conf1.mem_owner = 1;
+                        RMT.rx_conf[ch].conf1.mem_wr_rst = 1;
+                        RMT.rx_conf[ch].conf1.rx_en = 1;
+#else
                         RMT.conf_ch[ch].conf1.mem_owner = 1;
                         RMT.conf_ch[ch].conf1.mem_wr_rst = 1;
                         RMT.conf_ch[ch].conf1.rx_en = 1;
+#endif
                         RMT.int_ena.val |= _INT_RX_END(ch);
                     } else {
                         // if not callback provide, expect only one Rx
@@ -701,10 +854,17 @@ static void ARDUINO_ISR_ATTR _rmt_isr(void* arg)
                 xEventGroupSetBits(g_rmt_objects[ch].events, RMT_FLAG_ERROR);
             }
             // reset memory
+#if CONFIG_IDF_TARGET_ESP32C3
+            RMT.tx_conf[ch].mem_rd_rst = 1;
+            RMT.tx_conf[ch].mem_rd_rst = 0;
+            RMT.rx_conf[ch].conf1.mem_wr_rst = 1;
+            RMT.rx_conf[ch].conf1.mem_wr_rst = 0;
+#else
             RMT.conf_ch[ch].conf1.mem_rd_rst = 1;
             RMT.conf_ch[ch].conf1.mem_rd_rst = 0;
             RMT.conf_ch[ch].conf1.mem_wr_rst = 1;
             RMT.conf_ch[ch].conf1.mem_wr_rst = 0;
+#endif
         }
 
         if (intr_val & _INT_TX_END(ch)) {
@@ -716,15 +876,24 @@ static void ARDUINO_ISR_ATTR _rmt_isr(void* arg)
         if (intr_val & _INT_THR_EVNT(ch)) {
             // clear the flag
             RMT.int_clr.val = _INT_THR_EVNT(ch);
+#if CONFIG_IDF_TARGET_ESP32C3
+            //RMT.int_clr.val = _INT_TX_END(ch);
+            //RMT.int_ena.val |= _INT_TX_END(ch);
+#endif
 
             // initial setup of continuous mode
             if (g_rmt_objects[ch].tx_state & E_SET_CONTI) {
+#if CONFIG_IDF_TARGET_ESP32C3
+                RMT.tx_conf[ch].tx_conti_mode = 1;
+#else
                 RMT.conf_ch[ch].conf1.tx_conti_mode = 1;
+#endif
                 g_rmt_objects[ch].intr_mode &= ~E_SET_CONTI;
             }
             _rmt_tx_mem_first(ch);
         }
     }
+    //DEBUG_INTERRUPT_END(4);
 }
 
 static void ARDUINO_ISR_ATTR _rmt_tx_mem_second(uint8_t ch)
@@ -734,14 +903,23 @@ static void ARDUINO_ISR_ATTR _rmt_tx_mem_second(uint8_t ch)
     int half_tx_nr = MAX_DATA_PER_ITTERATION/2;
     int i;
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.tx_lim[ch].limit = half_tx_nr+2;
+#else
     RMT.tx_lim_ch[ch].limit = half_tx_nr+2;
+#endif
     RMT.int_clr.val = _INT_THR_EVNT(ch);
     RMT.int_ena.val |= _INT_THR_EVNT(ch);
+#if CONFIG_IDF_TARGET_ESP32C3
+    //RMT.int_clr.val = _INT_TX_END(ch);
+    //RMT.int_ena.val &= ~_INT_TX_END(ch);
+#endif
 
     g_rmt_objects[ch].tx_state |= E_FIRST_HALF;
 
     if (data) {
         int remaining_size = g_rmt_objects[ch].data_size;
+        //ets_printf("RMT Tx[%d] %d\n", ch, remaining_size);
         // will the remaining data occupy the entire halfbuffer
         if (remaining_size > half_tx_nr) {
             for (i = 0; i < half_tx_nr; i++) {
@@ -760,17 +938,30 @@ static void ARDUINO_ISR_ATTR _rmt_tx_mem_second(uint8_t ch)
             g_rmt_objects[ch].data_ptr = NULL;
 
         }
+#if CONFIG_IDF_TARGET_ESP32C3
+        RMTMEM.chan[ch].data32[half_tx_nr+i].val = 0;
+        RMT.tx_conf[ch].tx_start = 1;
+#endif
     } else if   ((!(g_rmt_objects[ch].tx_state & E_LAST_DATA)) &&
                  (!(g_rmt_objects[ch].tx_state & E_END_TRANS))) {
+        //ets_printf("RMT Tx finishing %d!\n", ch);
         for (i = 0; i < half_tx_nr; i++) {
             RMTMEM.chan[ch].data32[half_tx_nr+i].val = 0x000F000F;
         }
         RMTMEM.chan[ch].data32[half_tx_nr+i].val = 0;
         g_rmt_objects[ch].tx_state |= E_LAST_DATA;
+#if CONFIG_IDF_TARGET_ESP32C3
+        RMT.tx_conf[ch].tx_conti_mode = 0;
+#else
         RMT.conf_ch[ch].conf1.tx_conti_mode = 0;
+#endif
     } else {
-        log_d("RMT Tx finished %d!\n", ch);
+        //ets_printf("RMT Tx finished %d!\n", ch);
+#if CONFIG_IDF_TARGET_ESP32C3
+        RMT.tx_conf[ch].tx_conti_mode = 0;
+#else
         RMT.conf_ch[ch].conf1.tx_conti_mode = 0;
+#endif
         RMT.int_ena.val &= ~_INT_TX_END(ch);
         RMT.int_ena.val &= ~_INT_THR_EVNT(ch);
         g_rmt_objects[ch].intr_mode = E_NO_INTR;
@@ -786,10 +977,15 @@ static void ARDUINO_ISR_ATTR _rmt_tx_mem_first(uint8_t ch)
     int half_tx_nr = MAX_DATA_PER_ITTERATION/2;
     int i;
     RMT.int_ena.val &= ~_INT_THR_EVNT(ch);
+#if CONFIG_IDF_TARGET_ESP32C3
+    RMT.tx_lim[ch].limit = 0;
+#else
     RMT.tx_lim_ch[ch].limit = 0;
+#endif
 
     if (data) {
         int remaining_size = g_rmt_objects[ch].data_size;
+        //ets_printf("RMT TxF[%d] %d\n", ch, remaining_size);
 
         // will the remaining data occupy the entire halfbuffer
         if (remaining_size > half_tx_nr) {
@@ -800,7 +996,11 @@ static void ARDUINO_ISR_ATTR _rmt_tx_mem_first(uint8_t ch)
             g_rmt_objects[ch].tx_state &= ~E_FIRST_HALF;
             // turn off the treshold interrupt
             RMT.int_ena.val &= ~_INT_THR_EVNT(ch);
+#if CONFIG_IDF_TARGET_ESP32C3
+            RMT.tx_lim[ch].limit = 0;
+#else
             RMT.tx_lim_ch[ch].limit = 0;
+#endif
             g_rmt_objects[ch].data_size -= half_tx_nr;
             g_rmt_objects[ch].data_ptr += half_tx_nr;
         } else {
@@ -817,23 +1017,37 @@ static void ARDUINO_ISR_ATTR _rmt_tx_mem_first(uint8_t ch)
             g_rmt_objects[ch].data_ptr = NULL;
         }
     } else { 
+        //ets_printf("RMT TxF finished %d!\n", ch);
         for (i = 0; i < half_tx_nr; i++) {
             RMTMEM.chan[ch].data32[i].val = 0x000F000F;
         }
         RMTMEM.chan[ch].data32[i].val = 0;
 
         g_rmt_objects[ch].tx_state &= ~E_FIRST_HALF;
+#if CONFIG_IDF_TARGET_ESP32C3
+        RMT.tx_lim[ch].limit = 0;
+#else
         RMT.tx_lim_ch[ch].limit = 0;
+#endif
         g_rmt_objects[ch].tx_state |= E_LAST_DATA;
+#if CONFIG_IDF_TARGET_ESP32C3
+        RMT.tx_conf[ch].tx_conti_mode = 0;
+#else
         RMT.conf_ch[ch].conf1.tx_conti_mode = 0;
+#endif
     }
     DEBUG_INTERRUPT_END(2);
 }
 
 static int ARDUINO_ISR_ATTR _rmt_get_mem_len(uint8_t channel)
 {
+#if CONFIG_IDF_TARGET_ESP32C3
+    int block_num = RMT.rx_conf[channel].conf0.mem_size;
+    int item_block_len = block_num * 48;
+#else
     int block_num = RMT.conf_ch[channel].conf0.mem_size;
     int item_block_len = block_num * 64;
+#endif
     volatile rmt_item32_t* data = RMTMEM.chan[channel].data32;
     int idx;
     for(idx = 0; idx < item_block_len; idx++) {

cores/esp32/esp32-hal-rmt.h

@@ -40,7 +40,7 @@ typedef enum {
 
 typedef struct rmt_obj_s rmt_obj_t;
 
-typedef void (*rmt_rx_data_cb_t)(uint32_t *data, size_t len);
+typedef void (*rmt_rx_data_cb_t)(uint32_t *data, size_t len, void *arg);
 
 typedef struct {
     union {
@@ -90,8 +90,13 @@ bool rmtReadAsync(rmt_obj_t* rmt, rmt_data_t* data, size_t size, void* eventFlag
 *    and callback with data from ISR
 *
 */
-bool rmtRead(rmt_obj_t* rmt, rmt_rx_data_cb_t cb);
+bool rmtRead(rmt_obj_t* rmt, rmt_rx_data_cb_t cb, void * arg);
 
+/***
+ * Ends async receive started with rmtRead(); but does not
+ * rmtDeInit().
+ */
+bool rmtEnd(rmt_obj_t* rmt);
 
 /*  Additional interface */
 

cores/esp32/esp32-hal-sigmadelta.c

@@ -26,6 +26,8 @@
 #include "esp32/rom/ets_sys.h"
 #elif CONFIG_IDF_TARGET_ESP32S2
 #include "esp32s2/rom/ets_sys.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/ets_sys.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif

cores/esp32/esp32-hal-spi.c

@@ -22,19 +22,25 @@
 #include "soc/spi_struct.h"
 #include "soc/io_mux_reg.h"
 #include "soc/gpio_sig_map.h"
-#include "soc/dport_reg.h"
 #include "soc/rtc.h"
+#include "driver/periph_ctrl.h"
 
 #include "esp_system.h"
 #ifdef ESP_IDF_VERSION_MAJOR // IDF 4+
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
+#include "soc/dport_reg.h"
 #include "esp32/rom/ets_sys.h"
 #include "esp32/rom/gpio.h"
 #include "esp_intr_alloc.h"
 #elif CONFIG_IDF_TARGET_ESP32S2
+#include "soc/dport_reg.h"
 #include "esp32s2/rom/ets_sys.h"
 #include "esp32s2/rom/gpio.h"
 #include "esp_intr_alloc.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/ets_sys.h"
+#include "esp32c3/rom/gpio.h"
+#include "esp_intr_alloc.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -62,11 +68,24 @@ struct spi_struct_t {
 
 #define SPI_SPI_SS_IDX(n)   ((n==0)?SPICS0_OUT_IDX:((n==1)?SPICS1_OUT_IDX:0))
 #define SPI_HSPI_SS_IDX(n)  ((n==0)?SPI3_CS0_OUT_IDX:((n==1)?SPI3_CS1_OUT_IDX:((n==2)?SPI3_CS2_OUT_IDX:SPI3_CS0_OUT_IDX)))
-#define SPI_FSPI_SS_IDX(n)  ((n==0)?FSPICS0_OUT_IDX:((n==1)?FSPICS1_OUT_IDX:((n==2)?FSPICS2_OUT_IDX:VSPICS0_OUT_IDX)))
+#define SPI_FSPI_SS_IDX(n)  ((n==0)?FSPICS0_OUT_IDX:((n==1)?FSPICS1_OUT_IDX:((n==2)?FSPICS2_OUT_IDX:FSPICS0_OUT_IDX)))
 #define SPI_SS_IDX(p, n)    ((p==0)?SPI_SPI_SS_IDX(n):((p==1)?SPI_SPI_SS_IDX(n):((p==2)?SPI_HSPI_SS_IDX(n):0)))
 
 #define SPI_INTR_SOURCE(u)  ((u==0)?ETS_SPI1_INTR_SOURCE:((u==1)?ETS_SPI2_INTR_SOURCE:((u==2)?ETS_SPI3_INTR_SOURCE:0)))
 
+#elif CONFIG_IDF_TARGET_ESP32C3
+// ESP32S2
+#define SPI_COUNT           (1)
+
+#define SPI_CLK_IDX(p)      FSPICLK_OUT_IDX
+#define SPI_MISO_IDX(p)     FSPIQ_OUT_IDX
+#define SPI_MOSI_IDX(p)     FSPID_IN_IDX
+
+#define SPI_SPI_SS_IDX(n)   ((n==0)?FSPICS0_OUT_IDX:((n==1)?FSPICS1_OUT_IDX:((n==2)?FSPICS2_OUT_IDX:FSPICS0_OUT_IDX)))
+#define SPI_SS_IDX(p, n)    SPI_SPI_SS_IDX(n)
+
+#define SPI_INTR_SOURCE(u)  ETS_SPI2_INTR_SOURCE
+
 #else
 // ESP32
 #define SPI_COUNT           (4)
@@ -109,6 +128,8 @@ static spi_t _spi_bus_array[] = {
     {(volatile spi_dev_t *)(DR_REG_SPI1_BASE), NULL, 0},
     {(volatile spi_dev_t *)(DR_REG_SPI2_BASE), NULL, 1},
     {(volatile spi_dev_t *)(DR_REG_SPI3_BASE), NULL, 2}
+#elif CONFIG_IDF_TARGET_ESP32C3
+    {(volatile spi_dev_t *)(&GPSPI2), NULL, FSPI}
 #else
     {(volatile spi_dev_t *)(DR_REG_SPI0_BASE), NULL, 0},
     {(volatile spi_dev_t *)(DR_REG_SPI1_BASE), NULL, 1},
@@ -131,7 +152,7 @@ void spiAttachSCK(spi_t * spi, int8_t sck)
             log_e("HSPI Does not have default pins on ESP32S2!");
             return;
         }
-#else
+#elif CONFIG_IDF_TARGET_ESP32
         if(spi->num == HSPI) {
             sck = 14;
         } else if(spi->num == VSPI) {
@@ -139,6 +160,9 @@ void spiAttachSCK(spi_t * spi, int8_t sck)
         } else {
             sck = 6;
         }
+#elif CONFIG_IDF_TARGET_ESP32C3
+        log_e("SPI Does not have default pins on ESP32C3!");
+        return;
 #endif
     }
     pinMode(sck, OUTPUT);
@@ -158,7 +182,7 @@ void spiAttachMISO(spi_t * spi, int8_t miso)
             log_e("HSPI Does not have default pins on ESP32S2!");
             return;
         }
-#else
+#elif CONFIG_IDF_TARGET_ESP32
         if(spi->num == HSPI) {
             miso = 12;
         } else if(spi->num == VSPI) {
@@ -166,6 +190,9 @@ void spiAttachMISO(spi_t * spi, int8_t miso)
         } else {
             miso = 7;
         }
+#elif CONFIG_IDF_TARGET_ESP32C3
+        log_e("SPI Does not have default pins on ESP32C3!");
+        return;
 #endif
     }
     SPI_MUTEX_LOCK();
@@ -187,7 +214,7 @@ void spiAttachMOSI(spi_t * spi, int8_t mosi)
             log_e("HSPI Does not have default pins on ESP32S2!");
             return;
         }
-#else
+#elif CONFIG_IDF_TARGET_ESP32
         if(spi->num == HSPI) {
             mosi = 13;
         } else if(spi->num == VSPI) {
@@ -195,6 +222,9 @@ void spiAttachMOSI(spi_t * spi, int8_t mosi)
         } else {
             mosi = 8;
         }
+#elif CONFIG_IDF_TARGET_ESP32C3
+        log_e("SPI Does not have default pins on ESP32C3!");
+        return;
 #endif
     }
     pinMode(mosi, OUTPUT);
@@ -214,7 +244,7 @@ void spiDetachSCK(spi_t * spi, int8_t sck)
             log_e("HSPI Does not have default pins on ESP32S2!");
             return;
         }
-#else
+#elif CONFIG_IDF_TARGET_ESP32
         if(spi->num == HSPI) {
             sck = 14;
         } else if(spi->num == VSPI) {
@@ -222,6 +252,9 @@ void spiDetachSCK(spi_t * spi, int8_t sck)
         } else {
             sck = 6;
         }
+#elif CONFIG_IDF_TARGET_ESP32C3
+        log_e("SPI Does not have default pins on ESP32C3!");
+        return;
 #endif
     }
     pinMatrixOutDetach(sck, false, false);
@@ -241,7 +274,7 @@ void spiDetachMISO(spi_t * spi, int8_t miso)
             log_e("HSPI Does not have default pins on ESP32S2!");
             return;
         }
-#else
+#elif CONFIG_IDF_TARGET_ESP32
         if(spi->num == HSPI) {
             miso = 12;
         } else if(spi->num == VSPI) {
@@ -249,6 +282,9 @@ void spiDetachMISO(spi_t * spi, int8_t miso)
         } else {
             miso = 7;
         }
+#elif CONFIG_IDF_TARGET_ESP32C3
+        log_e("SPI Does not have default pins on ESP32C3!");
+        return;
 #endif
     }
     pinMatrixInDetach(SPI_MISO_IDX(spi->num), false, false);
@@ -268,7 +304,7 @@ void spiDetachMOSI(spi_t * spi, int8_t mosi)
             log_e("HSPI Does not have default pins on ESP32S2!");
             return;
         }
-#else
+#elif CONFIG_IDF_TARGET_ESP32
         if(spi->num == HSPI) {
             mosi = 13;
         } else if(spi->num == VSPI) {
@@ -276,6 +312,9 @@ void spiDetachMOSI(spi_t * spi, int8_t mosi)
         } else {
             mosi = 8;
         }
+#elif CONFIG_IDF_TARGET_ESP32C3
+        log_e("SPI Does not have default pins on ESP32C3!");
+        return;
 #endif
     }
     pinMatrixOutDetach(mosi, false, false);
@@ -299,7 +338,7 @@ void spiAttachSS(spi_t * spi, uint8_t cs_num, int8_t ss)
             log_e("HSPI Does not have default pins on ESP32S2!");
             return;
         }
-#else
+#elif CONFIG_IDF_TARGET_ESP32
         if(spi->num == HSPI) {
             ss = 15;
         } else if(spi->num == VSPI) {
@@ -307,6 +346,9 @@ void spiAttachSS(spi_t * spi, uint8_t cs_num, int8_t ss)
         } else {
             ss = 11;
         }
+#elif CONFIG_IDF_TARGET_ESP32C3
+        log_e("SPI Does not have default pins on ESP32C3!");
+        return;
 #endif
     }
     pinMode(ss, OUTPUT);
@@ -327,7 +369,7 @@ void spiDetachSS(spi_t * spi, int8_t ss)
             log_e("HSPI Does not have default pins on ESP32S2!");
             return;
         }
-#else
+#elif CONFIG_IDF_TARGET_ESP32
         if(spi->num == HSPI) {
             ss = 15;
         } else if(spi->num == VSPI) {
@@ -335,6 +377,9 @@ void spiDetachSS(spi_t * spi, int8_t ss)
         } else {
             ss = 11;
         }
+#elif CONFIG_IDF_TARGET_ESP32C3
+        log_e("SPI Does not have default pins on ESP32C3!");
+        return;
 #endif
     }
     pinMatrixOutDetach(ss, false, false);
@@ -347,7 +392,7 @@ void spiEnableSSPins(spi_t * spi, uint8_t cs_mask)
         return;
     }
     SPI_MUTEX_LOCK();
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
     spi->dev->misc.val &= ~(cs_mask & SPI_CS_MASK_ALL);
 #else
     spi->dev->pin.val &= ~(cs_mask & SPI_CS_MASK_ALL);
@@ -361,7 +406,7 @@ void spiDisableSSPins(spi_t * spi, uint8_t cs_mask)
         return;
     }
     SPI_MUTEX_LOCK();
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
     spi->dev->misc.val |= (cs_mask & SPI_CS_MASK_ALL);
 #else
     spi->dev->pin.val |= (cs_mask & SPI_CS_MASK_ALL);
@@ -397,7 +442,7 @@ void spiSSSet(spi_t * spi)
         return;
     }
     SPI_MUTEX_LOCK();
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
     spi->dev->misc.cs_keep_active = 1;
 #else
     spi->dev->pin.cs_keep_active = 1;
@@ -411,7 +456,7 @@ void spiSSClear(spi_t * spi)
         return;
     }
     SPI_MUTEX_LOCK();
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
     spi->dev->misc.cs_keep_active = 0;
 #else
     spi->dev->pin.cs_keep_active = 0;
@@ -442,7 +487,7 @@ uint8_t spiGetDataMode(spi_t * spi)
     if(!spi) {
         return 0;
     }
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
     bool idleEdge = spi->dev->misc.ck_idle_edge;
 #else
     bool idleEdge = spi->dev->pin.ck_idle_edge;
@@ -468,7 +513,7 @@ void spiSetDataMode(spi_t * spi, uint8_t dataMode)
     SPI_MUTEX_LOCK();
     switch (dataMode) {
     case SPI_MODE1:
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
         spi->dev->misc.ck_idle_edge = 0;
 #else
         spi->dev->pin.ck_idle_edge = 0;
@@ -476,7 +521,7 @@ void spiSetDataMode(spi_t * spi, uint8_t dataMode)
         spi->dev->user.ck_out_edge = 1;
         break;
     case SPI_MODE2:
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
         spi->dev->misc.ck_idle_edge = 1;
 #else
         spi->dev->pin.ck_idle_edge = 1;
@@ -484,7 +529,7 @@ void spiSetDataMode(spi_t * spi, uint8_t dataMode)
         spi->dev->user.ck_out_edge = 1;
         break;
     case SPI_MODE3:
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
         spi->dev->misc.ck_idle_edge = 1;
 #else
         spi->dev->pin.ck_idle_edge = 1;
@@ -493,7 +538,7 @@ void spiSetDataMode(spi_t * spi, uint8_t dataMode)
         break;
     case SPI_MODE0:
     default:
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
         spi->dev->misc.ck_idle_edge = 0;
 #else
         spi->dev->pin.ck_idle_edge = 0;
@@ -542,9 +587,11 @@ static void _on_apb_change(void * arg, apb_change_ev_t ev_type, uint32_t old_apb
 
 static void spiInitBus(spi_t * spi)
 {
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     spi->dev->slave.trans_done = 0;
-    spi->dev->slave.slave_mode = 0;
-#if CONFIG_IDF_TARGET_ESP32S2
+#endif
+    spi->dev->slave.val = 0;
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
     spi->dev->misc.val = 0;
 #else
     spi->dev->pin.val = 0;
@@ -552,8 +599,15 @@ static void spiInitBus(spi_t * spi)
     spi->dev->user.val = 0;
     spi->dev->user1.val = 0;
     spi->dev->ctrl.val = 0;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     spi->dev->ctrl1.val = 0;
     spi->dev->ctrl2.val = 0;
+#else
+    spi->dev->clk_gate.val = 0;
+    spi->dev->dma_conf.val = 0;
+    spi->dev->dma_conf.rx_afifo_rst = 1;
+    spi->dev->dma_conf.buf_afifo_rst = 1;
+#endif
     spi->dev->clock.val = 0;
 }
 
@@ -562,9 +616,9 @@ void spiStopBus(spi_t * spi)
     if(!spi) {
         return;
     }
-    
+
     removeApbChangeCallback(spi, _on_apb_change);
-    
+
     SPI_MUTEX_LOCK();
     spiInitBus(spi);
     SPI_MUTEX_UNLOCK();
@@ -598,7 +652,7 @@ spi_t * spiStartBus(uint8_t spi_num, uint32_t clockDiv, uint8_t dataMode, uint8_
         DPORT_SET_PERI_REG_MASK(DPORT_PERIP_CLK_EN_REG, DPORT_SPI01_CLK_EN);
         DPORT_CLEAR_PERI_REG_MASK(DPORT_PERIP_RST_EN_REG, DPORT_SPI01_RST);
     }
-#else
+#elif CONFIG_IDF_TARGET_ESP32
     if(spi_num == HSPI) {
         DPORT_SET_PERI_REG_MASK(DPORT_PERIP_CLK_EN_REG, DPORT_SPI2_CLK_EN);
         DPORT_CLEAR_PERI_REG_MASK(DPORT_PERIP_RST_EN_REG, DPORT_SPI2_RST);
@@ -609,14 +663,24 @@ spi_t * spiStartBus(uint8_t spi_num, uint32_t clockDiv, uint8_t dataMode, uint8_
         DPORT_SET_PERI_REG_MASK(DPORT_PERIP_CLK_EN_REG, DPORT_SPI01_CLK_EN);
         DPORT_CLEAR_PERI_REG_MASK(DPORT_PERIP_RST_EN_REG, DPORT_SPI01_RST);
     }
+#elif CONFIG_IDF_TARGET_ESP32C3
+    periph_module_reset( PERIPH_SPI2_MODULE );
+    periph_module_enable( PERIPH_SPI2_MODULE );
 #endif
 
     SPI_MUTEX_LOCK();
     spiInitBus(spi);
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->clk_gate.clk_en = 1;
+    spi->dev->clk_gate.mst_clk_sel = 1;
+    spi->dev->clk_gate.mst_clk_active = 1;
+    spi->dev->dma_conf.tx_seg_trans_clr_en = 1;
+    spi->dev->dma_conf.rx_seg_trans_clr_en = 1;
+    spi->dev->dma_conf.dma_seg_trans_en = 0;
+#endif
     spi->dev->user.usr_mosi = 1;
     spi->dev->user.usr_miso = 1;
     spi->dev->user.doutdin = 1;
-
     int i;
     for(i=0; i<16; i++) {
         spi->dev->data_buf[i] = 0x00000000;
@@ -628,6 +692,7 @@ spi_t * spiStartBus(uint8_t spi_num, uint32_t clockDiv, uint8_t dataMode, uint8_
     spiSetClockDiv(spi, clockDiv);
 
     addApbChangeCallback(spi, _on_apb_change);
+
     return spi;
 }
 
@@ -642,6 +707,11 @@ void spiWaitReady(spi_t * spi)
 #if CONFIG_IDF_TARGET_ESP32S2
 #define usr_mosi_dbitlen usr_mosi_bit_len
 #define usr_miso_dbitlen usr_miso_bit_len
+#elif CONFIG_IDF_TARGET_ESP32C3
+#define usr_mosi_dbitlen ms_data_bitlen
+#define usr_miso_dbitlen ms_data_bitlen
+#define mosi_dlen ms_dlen
+#define miso_dlen ms_dlen
 #endif
 
 void spiWrite(spi_t * spi, const uint32_t *data, uint8_t len)
@@ -655,10 +725,16 @@ void spiWrite(spi_t * spi, const uint32_t *data, uint8_t len)
     }
     SPI_MUTEX_LOCK();
     spi->dev->mosi_dlen.usr_mosi_dbitlen = (len * 32) - 1;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#endif
     for(i=0; i<len; i++) {
         spi->dev->data_buf[i] = data[i];
     }
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     SPI_MUTEX_UNLOCK();
@@ -679,6 +755,10 @@ void spiTransfer(spi_t * spi, uint32_t *data, uint8_t len)
     for(i=0; i<len; i++) {
         spi->dev->data_buf[i] = data[i];
     }
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     for(i=0; i<len; i++) {
@@ -694,8 +774,14 @@ void spiWriteByte(spi_t * spi, uint8_t data)
     }
     SPI_MUTEX_LOCK();
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 7;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#endif
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     SPI_MUTEX_UNLOCK();
@@ -710,6 +796,10 @@ uint8_t spiTransferByte(spi_t * spi, uint8_t data)
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 7;
     spi->dev->miso_dlen.usr_miso_dbitlen = 7;
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     data = spi->dev->data_buf[0] & 0xFF;
@@ -737,8 +827,14 @@ void spiWriteWord(spi_t * spi, uint16_t data)
     }
     SPI_MUTEX_LOCK();
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 15;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#endif
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     SPI_MUTEX_UNLOCK();
@@ -756,6 +852,10 @@ uint16_t spiTransferWord(spi_t * spi, uint16_t data)
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 15;
     spi->dev->miso_dlen.usr_miso_dbitlen = 15;
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     data = spi->dev->data_buf[0];
@@ -776,8 +876,14 @@ void spiWriteLong(spi_t * spi, uint32_t data)
     }
     SPI_MUTEX_LOCK();
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 31;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#endif
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     SPI_MUTEX_UNLOCK();
@@ -795,6 +901,10 @@ uint32_t spiTransferLong(spi_t * spi, uint32_t data)
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 31;
     spi->dev->miso_dlen.usr_miso_dbitlen = 31;
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     data = spi->dev->data_buf[0];
@@ -834,6 +944,10 @@ static void __spiTransferBytes(spi_t * spi, const uint8_t * data, uint8_t * out,
         spi->dev->data_buf[i] = wordsBuf[i];    //copy buffer to spi fifo
     }
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
 
     while(spi->dev->cmd.usr);
@@ -898,7 +1012,7 @@ void spiTransaction(spi_t * spi, uint32_t clockDiv, uint8_t dataMode, uint8_t bi
     spi->dev->clock.val = clockDiv;
     switch (dataMode) {
     case SPI_MODE1:
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
         spi->dev->misc.ck_idle_edge = 0;
 #else
         spi->dev->pin.ck_idle_edge = 0;
@@ -906,7 +1020,7 @@ void spiTransaction(spi_t * spi, uint32_t clockDiv, uint8_t dataMode, uint8_t bi
         spi->dev->user.ck_out_edge = 1;
         break;
     case SPI_MODE2:
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
         spi->dev->misc.ck_idle_edge = 1;
 #else
         spi->dev->pin.ck_idle_edge = 1;
@@ -914,7 +1028,7 @@ void spiTransaction(spi_t * spi, uint32_t clockDiv, uint8_t dataMode, uint8_t bi
         spi->dev->user.ck_out_edge = 1;
         break;
     case SPI_MODE3:
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
         spi->dev->misc.ck_idle_edge = 1;
 #else
         spi->dev->pin.ck_idle_edge = 1;
@@ -923,7 +1037,7 @@ void spiTransaction(spi_t * spi, uint32_t clockDiv, uint8_t dataMode, uint8_t bi
         break;
     case SPI_MODE0:
     default:
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C3
         spi->dev->misc.ck_idle_edge = 0;
 #else
         spi->dev->pin.ck_idle_edge = 0;
@@ -962,8 +1076,14 @@ void ARDUINO_ISR_ATTR spiWriteByteNL(spi_t * spi, uint8_t data)
         return;
     }
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 7;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#endif
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
 }
@@ -976,6 +1096,10 @@ uint8_t spiTransferByteNL(spi_t * spi, uint8_t data)
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 7;
     spi->dev->miso_dlen.usr_miso_dbitlen = 7;
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     data = spi->dev->data_buf[0] & 0xFF;
@@ -991,8 +1115,14 @@ void ARDUINO_ISR_ATTR spiWriteShortNL(spi_t * spi, uint16_t data)
         MSB_16_SET(data, data);
     }
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 15;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#endif
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
 }
@@ -1008,6 +1138,10 @@ uint16_t spiTransferShortNL(spi_t * spi, uint16_t data)
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 15;
     spi->dev->miso_dlen.usr_miso_dbitlen = 15;
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     data = spi->dev->data_buf[0] & 0xFFFF;
@@ -1026,8 +1160,14 @@ void ARDUINO_ISR_ATTR spiWriteLongNL(spi_t * spi, uint32_t data)
         MSB_32_SET(data, data);
     }
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 31;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#endif
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
 }
@@ -1043,6 +1183,10 @@ uint32_t spiTransferLongNL(spi_t * spi, uint32_t data)
     spi->dev->mosi_dlen.usr_mosi_dbitlen = 31;
     spi->dev->miso_dlen.usr_miso_dbitlen = 31;
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     data = spi->dev->data_buf[0];
@@ -1053,6 +1197,9 @@ uint32_t spiTransferLongNL(spi_t * spi, uint32_t data)
 }
 
 void spiWriteNL(spi_t * spi, const void * data_in, uint32_t len){
+    if(!spi) {
+        return;
+    }
     size_t longs = len >> 2;
     if(len & 3){
         longs++;
@@ -1065,10 +1212,16 @@ void spiWriteNL(spi_t * spi, const void * data_in, uint32_t len){
         c_longs = (longs > 16)?16:longs;
 
         spi->dev->mosi_dlen.usr_mosi_dbitlen = (c_len*8)-1;
-        spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#endif
         for (int i=0; i<c_longs; i++) {
             spi->dev->data_buf[i] = data[i];
         }
+#if CONFIG_IDF_TARGET_ESP32C3
+        spi->dev->cmd.update = 1;
+        while (spi->dev->cmd.update);
+#endif
         spi->dev->cmd.usr = 1;
         while(spi->dev->cmd.usr);
 
@@ -1105,11 +1258,27 @@ void spiTransferBytesNL(spi_t * spi, const void * data_in, uint8_t * data_out, u
                 spi->dev->data_buf[i] = 0xFFFFFFFF;
             }
         }
+#if CONFIG_IDF_TARGET_ESP32C3
+        spi->dev->cmd.update = 1;
+        while (spi->dev->cmd.update);
+#endif
         spi->dev->cmd.usr = 1;
         while(spi->dev->cmd.usr);
         if(result){
-            for (int i=0; i<c_longs; i++) {
-                result[i] = spi->dev->data_buf[i];
+            if(c_len & 3){
+                for (int i=0; i<(c_longs-1); i++) {
+                    result[i] = spi->dev->data_buf[i];
+                }
+                uint32_t last_data = spi->dev->data_buf[c_longs-1];
+                uint8_t * last_out8 = (uint8_t *)&result[c_longs-1];
+                uint8_t * last_data8 = (uint8_t *)&last_data;
+                for (int i=0; i<(c_len & 3); i++) {
+                    last_out8[i] = last_data8[i];
+                }
+            } else {
+                for (int i=0; i<c_longs; i++) {
+                    result[i] = spi->dev->data_buf[i];
+                }
             }
         }
         if(data){
@@ -1148,6 +1317,10 @@ void spiTransferBitsNL(spi_t * spi, uint32_t data, uint32_t * out, uint8_t bits)
     spi->dev->mosi_dlen.usr_mosi_dbitlen = (bits - 1);
     spi->dev->miso_dlen.usr_miso_dbitlen = (bits - 1);
     spi->dev->data_buf[0] = data;
+#if CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->cmd.update = 1;
+    while (spi->dev->cmd.update);
+#endif
     spi->dev->cmd.usr = 1;
     while(spi->dev->cmd.usr);
     data = spi->dev->data_buf[0];
@@ -1180,7 +1353,9 @@ void ARDUINO_ISR_ATTR spiWritePixelsNL(spi_t * spi, const void * data_in, uint32
         l_bytes = (c_len & 3);
 
         spi->dev->mosi_dlen.usr_mosi_dbitlen = (c_len*8)-1;
-        spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
+    spi->dev->miso_dlen.usr_miso_dbitlen = 0;
+#endif
         for (int i=0; i<c_longs; i++) {
             if(msb){
                 if(l_bytes && i == (c_longs - 1)){
@@ -1196,6 +1371,10 @@ void ARDUINO_ISR_ATTR spiWritePixelsNL(spi_t * spi, const void * data_in, uint32
                 spi->dev->data_buf[i] = data[i];
             }
         }
+#if CONFIG_IDF_TARGET_ESP32C3
+        spi->dev->cmd.update = 1;
+        while (spi->dev->cmd.update);
+#endif
         spi->dev->cmd.usr = 1;
         while(spi->dev->cmd.usr);
 
@@ -1218,7 +1397,12 @@ typedef union {
             uint32_t clkcnt_l:       6;                     /*it must be equal to spi_clkcnt_N.*/
             uint32_t clkcnt_h:       6;                     /*it must be floor((spi_clkcnt_N+1)/2-1).*/
             uint32_t clkcnt_n:       6;                     /*it is the divider of spi_clk. So spi_clk frequency is system/(spi_clkdiv_pre+1)/(spi_clkcnt_N+1)*/
+#if CONFIG_IDF_TARGET_ESP32C3
+            uint32_t clkdiv_pre:     4;                     /*it is pre-divider of spi_clk.*/
+            uint32_t reserved:       9;  					/*reserved*/
+#else
             uint32_t clkdiv_pre:    13;                     /*it is pre-divider of spi_clk.*/
+#endif
             uint32_t clk_equ_sysclk: 1;                     /*1: spi_clk is eqaul to system 0: spi_clk is divided from system clock.*/
     };
 } spiClk_t;
@@ -1260,8 +1444,13 @@ uint32_t spiFrequencyToClockDiv(uint32_t freq)
 
         while(calPreVari++ <= 1) {
             calPre = (((apb_freq / (reg.clkcnt_n + 1)) / freq) - 1) + calPreVari;
+#if CONFIG_IDF_TARGET_ESP32C3
+            if(calPre > 0xF) {
+                reg.clkdiv_pre = 0xF;
+#else
             if(calPre > 0x1FFF) {
                 reg.clkdiv_pre = 0x1FFF;
+#endif
             } else if(calPre <= 0) {
                 reg.clkdiv_pre = 0;
             } else {

cores/esp32/esp32-hal-spi.h

@@ -25,11 +25,16 @@ extern "C" {
 
 #define SPI_HAS_TRANSACTION
 
+#if CONFIG_IDF_TARGET_ESP32C3
+#define FSPI  0
+#define HSPI  1
+#else
 #define FSPI  1 //SPI bus attached to the flash (can use the same data lines but different SS)
 #define HSPI  2 //SPI bus normally mapped to pins 12 - 15, but can be matrixed to any pins
 #if CONFIG_IDF_TARGET_ESP32
 #define VSPI  3 //SPI bus normally attached to pins 5, 18, 19 and 23, but can be matrixed to any pins
 #endif
+#endif
 
 // This defines are not representing the real Divider of the ESP32
 // the Defines match to an AVR Arduino on 16MHz for better compatibility
@@ -57,7 +62,7 @@ extern "C" {
 struct spi_struct_t;
 typedef struct spi_struct_t spi_t;
 
-spi_t * spiStartBus(uint8_t spi_num, uint32_t freq, uint8_t dataMode, uint8_t bitOrder);
+spi_t * spiStartBus(uint8_t spi_num, uint32_t clockDiv, uint8_t dataMode, uint8_t bitOrder);
 void spiStopBus(spi_t * spi);
 
 //Attach/Detach Signal Pins

cores/esp32/esp32-hal-timer.c

@@ -14,10 +14,12 @@
 
 #include "esp32-hal-timer.h"
 #include "freertos/FreeRTOS.h"
+#ifndef CONFIG_IDF_TARGET_ESP32C3
 #include "freertos/xtensa_api.h"
+#include "soc/dport_reg.h"
+#endif
 #include "freertos/task.h"
 #include "soc/timer_group_struct.h"
-#include "soc/dport_reg.h"
 #include "esp_attr.h"
 #include "driver/periph_ctrl.h"
 
@@ -30,6 +32,10 @@
 #include "esp32s2/rom/ets_sys.h"
 #include "esp_intr_alloc.h"
 #include "soc/periph_defs.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/ets_sys.h"
+#include "esp_intr_alloc.h"
+#include "soc/periph_defs.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -266,9 +272,6 @@ void timerEnd(hw_timer_t *timer){
 }
 
 void timerAttachInterrupt(hw_timer_t *timer, void (*fn)(void), bool edge){
-	// EDGE DOES NOT WORK CURRENTLY
-	edge = false;
-
     static bool initialized = false;
     static intr_handle_t intr_handle = NULL;
     if(intr_handle){
@@ -299,12 +302,15 @@ void timerAttachInterrupt(hw_timer_t *timer, void (*fn)(void), bool edge){
         timer->dev->config.level_int_en = edge?0:1;//When set, an alarm will generate a level type interrupt.
         timer->dev->config.edge_int_en = edge?1:0;//When set, an alarm will generate an edge type interrupt.
         int intr_source = 0;
+#ifndef CONFIG_IDF_TARGET_ESP32C3
         if(!edge){
+#endif
             if(timer->group){
                 intr_source = ETS_TG1_T0_LEVEL_INTR_SOURCE + timer->timer;
             } else {
                 intr_source = ETS_TG0_T0_LEVEL_INTR_SOURCE + timer->timer;
             }
+#ifndef CONFIG_IDF_TARGET_ESP32C3
         } else {
             if(timer->group){
                 intr_source = ETS_TG1_T0_EDGE_INTR_SOURCE + timer->timer;
@@ -312,6 +318,7 @@ void timerAttachInterrupt(hw_timer_t *timer, void (*fn)(void), bool edge){
                 intr_source = ETS_TG0_T0_EDGE_INTR_SOURCE + timer->timer;
             }
         }
+#endif
         if(!initialized){
             initialized = true;
             esp_intr_alloc(intr_source, (int)(ARDUINO_ISR_FLAG|ESP_INTR_FLAG_LOWMED), __timerISR, NULL, &intr_handle);

cores/esp32/esp32-hal-tinyusb.c

@@ -1,7 +1,8 @@
 
 #include "sdkconfig.h"
-#if CONFIG_USB_ENABLED
+#if CONFIG_TINYUSB_ENABLED
 #include <stdlib.h>
+#include <stdbool.h>
 
 #include "esp_log.h"
 
@@ -12,10 +13,14 @@
 #include "soc/usb_reg.h"
 #include "soc/usb_wrap_reg.h"
 #include "soc/usb_wrap_struct.h"
+#include "soc/usb_periph.h"
 #include "soc/periph_defs.h"
 #include "soc/timer_group_struct.h"
 #include "soc/system_reg.h"
 
+#include "hal/usb_hal.h"
+#include "hal/gpio_ll.h"
+
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
@@ -24,12 +29,74 @@
 
 #include "esp_efuse.h"
 #include "esp_efuse_table.h"
+#include "esp_rom_gpio.h"
 
-#include "tinyusb.h"
 #include "esp32-hal.h"
 
 #include "esp32-hal-tinyusb.h"
 #include "esp32s2/rom/usb/usb_persist.h"
+#include "esp32s2/rom/usb/usb_dc.h"
+#include "esp32s2/rom/usb/chip_usb_dw_wrapper.h"
+
+typedef enum{
+    TINYUSB_USBDEV_0,
+} tinyusb_usbdev_t;
+
+typedef char *tusb_desc_strarray_device_t[USB_STRING_DESCRIPTOR_ARRAY_SIZE];
+
+typedef struct {
+    bool external_phy;
+} tinyusb_config_t;
+
+static void configure_pins(usb_hal_context_t *usb)
+{
+    for (const usb_iopin_dsc_t *iopin = usb_periph_iopins; iopin->pin != -1; ++iopin) {
+        if ((usb->use_external_phy) || (iopin->ext_phy_only == 0)) {
+            esp_rom_gpio_pad_select_gpio(iopin->pin);
+            if (iopin->is_output) {
+                esp_rom_gpio_connect_out_signal(iopin->pin, iopin->func, false, false);
+            } else {
+                esp_rom_gpio_connect_in_signal(iopin->pin, iopin->func, false);
+                if ((iopin->pin != GPIO_FUNC_IN_LOW) && (iopin->pin != GPIO_FUNC_IN_HIGH)) {
+                    gpio_ll_input_enable(&GPIO, iopin->pin);
+                }
+            }
+            esp_rom_gpio_pad_unhold(iopin->pin);
+        }
+    }
+    if (!usb->use_external_phy) {
+        gpio_set_drive_capability(USBPHY_DM_NUM, GPIO_DRIVE_CAP_3);
+        gpio_set_drive_capability(USBPHY_DP_NUM, GPIO_DRIVE_CAP_3);
+    }
+}
+
+esp_err_t tinyusb_driver_install(const tinyusb_config_t *config)
+{
+    log_i("Driver installation...");
+
+    // Hal init
+    usb_hal_context_t hal = {
+        .use_external_phy = config->external_phy
+    };
+    usb_hal_init(&hal);
+    configure_pins(&hal);
+
+    if (!tusb_init()) {
+        log_e("Can't initialize the TinyUSB stack.");
+        return ESP_FAIL;
+    }
+    log_i("Driver installed");
+    return ESP_OK;
+}
+
+
+
+
+
+
+
+
+
 
 typedef char tusb_str_t[127];
 
@@ -292,9 +359,9 @@ bool tud_vendor_control_complete_cb(uint8_t rhport, tusb_control_request_t const
  * Required Callbacks
  * */
 #if CFG_TUD_HID
-__attribute__ ((weak)) const uint8_t * tud_hid_descriptor_report_cb(void){return NULL;}
-__attribute__ ((weak)) uint16_t tud_hid_get_report_cb(uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen){return 0;}
-__attribute__ ((weak)) void tud_hid_set_report_cb(uint8_t report_id, hid_report_type_t report_type, const uint8_t * buffer, uint16_t bufsize){}
+__attribute__ ((weak)) const uint8_t * tud_hid_descriptor_report_cb(uint8_t itf){return NULL;}
+__attribute__ ((weak)) uint16_t tud_hid_get_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen){return 0;}
+__attribute__ ((weak)) void tud_hid_set_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t report_type, const uint8_t * buffer, uint16_t bufsize){}
 #endif
 #if CFG_TUD_MSC
 __attribute__ ((weak)) bool tud_msc_test_unit_ready_cb(uint8_t lun){return false;}
@@ -383,8 +450,8 @@ static bool tinyusb_load_enabled_interfaces(){
     };
     memcpy(tinyusb_config_descriptor, descriptor, TUD_CONFIG_DESC_LEN);
     if ((tinyusb_loaded_interfaces_mask == (BIT(USB_INTERFACE_CDC) | BIT(USB_INTERFACE_DFU))) || (tinyusb_loaded_interfaces_mask == BIT(USB_INTERFACE_CDC))) {
-        usb_persist_enabled = true;
-        log_d("USB Persist enabled");
+        //usb_persist_enabled = true;
+        //log_d("USB Persist enabled");
     }
     log_d("Load Done: if_num: %u, descr_len: %u, if_mask: 0x%x", tinyusb_loaded_interfaces_num, tinyusb_config_descriptor_len, tinyusb_loaded_interfaces_mask);
     return true;
@@ -457,27 +524,25 @@ static void IRAM_ATTR usb_persist_shutdown_handler(void)
 {
     if(usb_persist_mode != RESTART_NO_PERSIST){
         if (usb_persist_enabled) {
-            REG_SET_BIT(RTC_CNTL_USB_CONF_REG, RTC_CNTL_IO_MUX_RESET_DISABLE);
-            REG_SET_BIT(RTC_CNTL_USB_CONF_REG, RTC_CNTL_USB_RESET_DISABLE);
+            usb_dc_prepare_persist();
         }
         if (usb_persist_mode == RESTART_BOOTLOADER) {
             //USB CDC Download
             if (usb_persist_enabled) {
-                USB_WRAP.date.val = USBDC_PERSIST_ENA;
+                chip_usb_set_persist_flags(USBDC_PERSIST_ENA);
+            } else {
+                periph_module_reset(PERIPH_USB_MODULE);
+                periph_module_enable(PERIPH_USB_MODULE);
             }
             REG_WRITE(RTC_CNTL_OPTION1_REG, RTC_CNTL_FORCE_DOWNLOAD_BOOT);
-            periph_module_disable(PERIPH_TIMG1_MODULE);
         } else if (usb_persist_mode == RESTART_BOOTLOADER_DFU) {
             //DFU Download
-            USB_WRAP.date.val = USBDC_BOOT_DFU;
+            chip_usb_set_persist_flags(USBDC_BOOT_DFU);
             REG_WRITE(RTC_CNTL_OPTION1_REG, RTC_CNTL_FORCE_DOWNLOAD_BOOT);
-            periph_module_disable(PERIPH_TIMG0_MODULE);
-            periph_module_disable(PERIPH_TIMG1_MODULE);
         } else if (usb_persist_enabled) {
             //USB Persist reboot
-            USB_WRAP.date.val = USBDC_PERSIST_ENA;
+            chip_usb_set_persist_flags(USBDC_PERSIST_ENA);
         }
-        SET_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG, RTC_CNTL_SW_PROCPU_RST);
     }
 }
 
@@ -521,17 +586,18 @@ esp_err_t tinyusb_init(tinyusb_device_config_t *config) {
 
     bool usb_did_persist = (USB_WRAP.date.val == USBDC_PERSIST_ENA);
 
-    if(usb_did_persist && usb_persist_enabled){
+    //if(usb_did_persist && usb_persist_enabled){
         // Enable USB/IO_MUX peripheral reset, if coming from persistent reboot
         REG_CLR_BIT(RTC_CNTL_USB_CONF_REG, RTC_CNTL_IO_MUX_RESET_DISABLE);
         REG_CLR_BIT(RTC_CNTL_USB_CONF_REG, RTC_CNTL_USB_RESET_DISABLE);
-    } else {
+    //} else 
+    if(!usb_did_persist || !usb_persist_enabled){
         // Reset USB module
         periph_module_reset(PERIPH_USB_MODULE);
         periph_module_enable(PERIPH_USB_MODULE);
     }
 
-    if (usb_persist_enabled && esp_register_shutdown_handler(usb_persist_shutdown_handler) != ESP_OK) {
+    if (esp_register_shutdown_handler(usb_persist_shutdown_handler) != ESP_OK) {
         initialized = false;
         return ESP_FAIL;
     }
@@ -550,11 +616,9 @@ esp_err_t tinyusb_init(tinyusb_device_config_t *config) {
 
 void usb_persist_restart(restart_type_t mode)
 {
-    if (usb_persist_enabled && mode < RESTART_TYPE_MAX) {
+    if (mode < RESTART_TYPE_MAX) {
         usb_persist_mode = mode;
         esp_restart();
-    } else {
-        log_e("Persistence is not enabled");
     }
 }
 
@@ -699,4 +763,4 @@ void usb_dw_reg_dump(void)
     }
 }
  */
-#endif /* CONFIG_USB_ENABLED */
+#endif /* CONFIG_TINYUSB_ENABLED */

cores/esp32/esp32-hal-tinyusb.h

@@ -16,13 +16,18 @@
 #include "esp32-hal.h"
 
 #if CONFIG_IDF_TARGET_ESP32S2
-#if CONFIG_USB_ENABLED
+#if CONFIG_TINYUSB_ENABLED
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include "tinyusb.h"
+#include "tusb.h"
+#include "tusb_option.h"
+#include "tusb_config.h"
+
+#define USB_ESPRESSIF_VID 0x303A
+#define USB_STRING_DESCRIPTOR_ARRAY_SIZE 10
 
 typedef struct {
         uint16_t vid;
@@ -46,10 +51,10 @@ typedef struct {
 #define TINYUSB_CONFIG_DEFAULT() {                                      \
         .vid = USB_ESPRESSIF_VID,                                       \
         .pid = 0x0002,                                                  \
-        .product_name = CONFIG_USB_DESC_PRODUCT_STRING,                 \
-        .manufacturer_name = CONFIG_USB_DESC_MANUFACTURER_STRING,       \
-        .serial_number = CONFIG_USB_DESC_SERIAL_STRING,                 \
-        .fw_version = CONFIG_USB_DESC_BCDDEVICE,                        \
+        .product_name = CONFIG_TINYUSB_DESC_PRODUCT_STRING,                 \
+        .manufacturer_name = CONFIG_TINYUSB_DESC_MANUFACTURER_STRING,       \
+        .serial_number = CONFIG_TINYUSB_DESC_SERIAL_STRING,                 \
+        .fw_version = CONFIG_TINYUSB_DESC_BCDDEVICE,                        \
         .usb_version = 0x0200,                                          \
         .usb_class = TUSB_CLASS_MISC,                                   \
         .usb_subclass = MISC_SUBCLASS_COMMON,                           \
@@ -99,5 +104,5 @@ uint8_t tinyusb_get_free_out_endpoint(void);
 }
 #endif
 
-#endif /* CONFIG_USB_ENABLED */
+#endif /* CONFIG_TINYUSB_ENABLED */
 #endif /* CONFIG_IDF_TARGET_ESP32S2 */

cores/esp32/esp32-hal-touch.c

@@ -13,13 +13,14 @@
 // limitations under the License.
 
 #include "esp32-hal-touch.h"
+#ifndef CONFIG_IDF_TARGET_ESP32C3
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "esp_attr.h"
 #include "soc/rtc_io_reg.h"
-#include "soc/rtc_cntl_reg.h"
 #include "soc/sens_reg.h"
 #include "soc/sens_struct.h"
+#include "soc/rtc_cntl_reg.h"
 #include "driver/touch_sensor.h"
 
 #include "esp_system.h"
@@ -225,3 +226,4 @@ void __touchAttachInterrupt(uint8_t pin, void (*userFunc)(void), uint16_t thresh
 extern uint16_t touchRead(uint8_t pin) __attribute__ ((weak, alias("__touchRead")));
 extern void touchAttachInterrupt(uint8_t pin, void (*userFunc)(void), uint16_t threshold) __attribute__ ((weak, alias("__touchAttachInterrupt")));
 extern void touchSetCycles(uint16_t measure, uint16_t sleep) __attribute__ ((weak, alias("__touchSetCycles")));
+#endif

cores/esp32/esp32-hal-uart.c

@@ -23,19 +23,25 @@
 #include "soc/uart_struct.h"
 #include "soc/io_mux_reg.h"
 #include "soc/gpio_sig_map.h"
-#include "soc/dport_reg.h"
 #include "soc/rtc.h"
+#include "hal/uart_ll.h"
 #include "esp_intr_alloc.h"
 
 #include "esp_system.h"
 #ifdef ESP_IDF_VERSION_MAJOR // IDF 4+
 #if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
+#include "soc/dport_reg.h"
 #include "esp32/rom/ets_sys.h"
 #include "esp32/rom/uart.h"
 #elif CONFIG_IDF_TARGET_ESP32S2
+#include "soc/dport_reg.h"
 #include "esp32s2/rom/ets_sys.h"
 #include "esp32s2/rom/uart.h"
 #include "soc/periph_defs.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/rom/ets_sys.h"
+#include "esp32c3/rom/uart.h"
+#include "soc/periph_defs.h"
 #else 
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
@@ -45,18 +51,24 @@
 #include "esp_intr.h"
 #endif
 
-#if CONFIG_IDF_TARGET_ESP32S2
+#if CONFIG_IDF_TARGET_ESP32
+#define UART_PORTS_NUM 3
+#define UART_REG_BASE(u)    ((u==0)?DR_REG_UART_BASE:(      (u==1)?DR_REG_UART1_BASE:(    (u==2)?DR_REG_UART2_BASE:0)))
+#define UART_RXD_IDX(u)     ((u==0)?U0RXD_IN_IDX:(          (u==1)?U1RXD_IN_IDX:(         (u==2)?U2RXD_IN_IDX:0)))
+#define UART_TXD_IDX(u)     ((u==0)?U0TXD_OUT_IDX:(         (u==1)?U1TXD_OUT_IDX:(        (u==2)?U2TXD_OUT_IDX:0)))
+#define UART_INTR_SOURCE(u) ((u==0)?ETS_UART0_INTR_SOURCE:( (u==1)?ETS_UART1_INTR_SOURCE:((u==2)?ETS_UART2_INTR_SOURCE:0)))
+#elif CONFIG_IDF_TARGET_ESP32S2
 #define UART_PORTS_NUM 2
 #define UART_REG_BASE(u)    ((u==0)?DR_REG_UART_BASE:(      (u==1)?DR_REG_UART1_BASE:0))
 #define UART_RXD_IDX(u)     ((u==0)?U0RXD_IN_IDX:(          (u==1)?U1RXD_IN_IDX:0))
 #define UART_TXD_IDX(u)     ((u==0)?U0TXD_OUT_IDX:(         (u==1)?U1TXD_OUT_IDX:0))
 #define UART_INTR_SOURCE(u) ((u==0)?ETS_UART0_INTR_SOURCE:( (u==1)?ETS_UART1_INTR_SOURCE:0))
 #else
-#define UART_PORTS_NUM 3
-#define UART_REG_BASE(u)    ((u==0)?DR_REG_UART_BASE:(      (u==1)?DR_REG_UART1_BASE:(    (u==2)?DR_REG_UART2_BASE:0)))
-#define UART_RXD_IDX(u)     ((u==0)?U0RXD_IN_IDX:(          (u==1)?U1RXD_IN_IDX:(         (u==2)?U2RXD_IN_IDX:0)))
-#define UART_TXD_IDX(u)     ((u==0)?U0TXD_OUT_IDX:(         (u==1)?U1TXD_OUT_IDX:(        (u==2)?U2TXD_OUT_IDX:0)))
-#define UART_INTR_SOURCE(u) ((u==0)?ETS_UART0_INTR_SOURCE:( (u==1)?ETS_UART1_INTR_SOURCE:((u==2)?ETS_UART2_INTR_SOURCE:0)))
+#define UART_PORTS_NUM 2
+#define UART_REG_BASE(u)    ((u==0)?DR_REG_UART_BASE:(      (u==1)?DR_REG_UART1_BASE:0))
+#define UART_RXD_IDX(u)     ((u==0)?U0RXD_IN_IDX:(          (u==1)?U1RXD_IN_IDX:0))
+#define UART_TXD_IDX(u)     ((u==0)?U0TXD_OUT_IDX:(         (u==1)?U1TXD_OUT_IDX:0))
+#define UART_INTR_SOURCE(u) ((u==0)?ETS_UART0_INTR_SOURCE:( (u==1)?ETS_UART1_INTR_SOURCE:0))
 #endif
 
 static int s_uart_debug_nr = 0;
@@ -119,7 +131,7 @@ static void ARDUINO_ISR_ATTR _uart_isr(void *arg)
         while(uart->dev->status.rxfifo_cnt) {
         	c = ESP_REG(fifo_reg);
 #endif
-            if(uart->queue != NULL)  {
+            if(uart->queue != NULL) {
                 xQueueSendFromISR(uart->queue, &c, &xHigherPriorityTaskWoken);
             }
         }
@@ -130,10 +142,10 @@ static void ARDUINO_ISR_ATTR _uart_isr(void *arg)
     }
 }
 
-void uartEnableInterrupt(uart_t* uart)
+static void uartEnableInterrupt(uart_t* uart, uint8_t rxfifo_full_thrhd)
 {
     UART_MUTEX_LOCK();
-    uart->dev->conf1.rxfifo_full_thrhd = 112;
+    uart->dev->conf1.rxfifo_full_thrhd = rxfifo_full_thrhd;
 #if CONFIG_IDF_TARGET_ESP32
     uart->dev->conf1.rx_tout_thrhd = 2;
 #else
@@ -149,7 +161,7 @@ void uartEnableInterrupt(uart_t* uart)
     UART_MUTEX_UNLOCK();
 }
 
-void uartDisableInterrupt(uart_t* uart)
+static void uartDisableInterrupt(uart_t* uart)
 {
     UART_MUTEX_LOCK();
     uart->dev->conf1.val = 0;
@@ -162,34 +174,34 @@ void uartDisableInterrupt(uart_t* uart)
     UART_MUTEX_UNLOCK();
 }
 
-void uartDetachRx(uart_t* uart)
+static void uartDetachRx(uart_t* uart, uint8_t rxPin)
 {
     if(uart == NULL) {
         return;
     }
-    pinMatrixInDetach(UART_RXD_IDX(uart->num), false, false);
+    pinMatrixInDetach(rxPin, false, false);
     uartDisableInterrupt(uart);
 }
 
-void uartDetachTx(uart_t* uart)
+static void uartDetachTx(uart_t* uart, uint8_t txPin)
 {
     if(uart == NULL) {
         return;
     }
-    pinMatrixOutDetach(UART_TXD_IDX(uart->num), false, false);
+    pinMatrixOutDetach(txPin, false, false);
 }
 
-void uartAttachRx(uart_t* uart, uint8_t rxPin, bool inverted)
+static void uartAttachRx(uart_t* uart, uint8_t rxPin, bool inverted, uint8_t rxfifo_full_thrhd)
 {
     if(uart == NULL || rxPin >= GPIO_PIN_COUNT) {
         return;
     }
     pinMode(rxPin, INPUT);
+    uartEnableInterrupt(uart, rxfifo_full_thrhd);
     pinMatrixInAttach(rxPin, UART_RXD_IDX(uart->num), inverted);
-    uartEnableInterrupt(uart);
 }
 
-void uartAttachTx(uart_t* uart, uint8_t txPin, bool inverted)
+static void uartAttachTx(uart_t* uart, uint8_t txPin, bool inverted)
 {
     if(uart == NULL || txPin >= GPIO_PIN_COUNT) {
         return;
@@ -198,7 +210,7 @@ void uartAttachTx(uart_t* uart, uint8_t txPin, bool inverted)
     pinMatrixOutAttach(txPin, UART_TXD_IDX(uart->num), inverted, false);
 }
 
-uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint16_t queueLen, bool inverted)
+uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint16_t queueLen, bool inverted, uint8_t rxfifo_full_thrhd)
 {
     if(uart_nr >= UART_PORTS_NUM) {
         return NULL;
@@ -225,6 +237,9 @@ uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rx
             return NULL;
         }
     }
+#if CONFIG_IDF_TARGET_ESP32C3
+
+#else
     if(uart_nr == 1){
         DPORT_SET_PERI_REG_MASK(DPORT_PERIP_CLK_EN_REG, DPORT_UART1_CLK_EN);
         DPORT_CLEAR_PERI_REG_MASK(DPORT_PERIP_RST_EN_REG, DPORT_UART1_RST);
@@ -237,6 +252,7 @@ uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rx
         DPORT_SET_PERI_REG_MASK(DPORT_PERIP_CLK_EN_REG, DPORT_UART_CLK_EN);
         DPORT_CLEAR_PERI_REG_MASK(DPORT_PERIP_RST_EN_REG, DPORT_UART_RST);
     }
+#endif
     uartFlush(uart);
     uartSetBaudRate(uart, baudrate);
     UART_MUTEX_LOCK();
@@ -256,7 +272,7 @@ uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rx
     UART_MUTEX_UNLOCK();
 
     if(rxPin != -1) {
-        uartAttachRx(uart, rxPin, inverted);
+        uartAttachRx(uart, rxPin, inverted, rxfifo_full_thrhd);
     }
 
     if(txPin != -1) {
@@ -266,7 +282,7 @@ uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rx
     return uart;
 }
 
-void uartEnd(uart_t* uart)
+void uartEnd(uart_t* uart, uint8_t txPin, uint8_t rxPin)
 {
     if(uart == NULL) {
         return;
@@ -283,8 +299,8 @@ void uartEnd(uart_t* uart)
 
     UART_MUTEX_UNLOCK();
 
-    uartDetachRx(uart);
-    uartDetachTx(uart);
+    uartDetachRx(uart, rxPin);
+    uartDetachTx(uart, txPin);
 }
 
 size_t uartResizeRxBuffer(uart_t * uart, size_t new_size) {
@@ -297,6 +313,7 @@ size_t uartResizeRxBuffer(uart_t * uart, size_t new_size) {
         vQueueDelete(uart->queue);
         uart->queue = xQueueCreate(new_size, sizeof(uint8_t));
         if(uart->queue == NULL) {
+            UART_MUTEX_UNLOCK();
             return 0;
         }
     }
@@ -305,12 +322,27 @@ size_t uartResizeRxBuffer(uart_t * uart, size_t new_size) {
     return new_size;
 }
 
+void uartSetRxInvert(uart_t* uart, bool invert)
+{
+    if (uart == NULL)
+        return;
+    
+    if (invert)
+        uart->dev->conf0.rxd_inv = 1;
+    else
+        uart->dev->conf0.rxd_inv = 0;
+}
+
 uint32_t uartAvailable(uart_t* uart)
 {
     if(uart == NULL || uart->queue == NULL) {
         return 0;
     }
+#ifdef UART_READ_RX_FIFO
     return (uxQueueMessagesWaiting(uart->queue) + uart->dev->status.rxfifo_cnt) ;
+#else
+    return uxQueueMessagesWaiting(uart->queue);
+#endif
 }
 
 uint32_t uartAvailableForWrite(uart_t* uart)
@@ -321,6 +353,7 @@ uint32_t uartAvailableForWrite(uart_t* uart)
     return 0x7f - uart->dev->status.txfifo_cnt;
 }
 
+#ifdef UART_READ_RX_FIFO
 void uartRxFifoToQueue(uart_t* uart)
 {
 	uint8_t c;
@@ -345,6 +378,7 @@ void uartRxFifoToQueue(uart_t* uart)
 	uart->dev->int_clr.val = 0xffffffff;
     UART_MUTEX_UNLOCK();
 }
+#endif
 
 uint8_t uartRead(uart_t* uart)
 {
@@ -352,10 +386,12 @@ uint8_t uartRead(uart_t* uart)
         return 0;
     }
     uint8_t c;
+#ifdef UART_READ_RX_FIFO
     if ((uxQueueMessagesWaiting(uart->queue) == 0) && (uart->dev->status.rxfifo_cnt > 0))
     {
     	uartRxFifoToQueue(uart);
     }
+#endif
     if(xQueueReceive(uart->queue, &c, 0)) {
         return c;
     }
@@ -368,10 +404,12 @@ uint8_t uartPeek(uart_t* uart)
         return 0;
     }
     uint8_t c;
+#ifdef UART_READ_RX_FIFO
     if ((uxQueueMessagesWaiting(uart->queue) == 0) && (uart->dev->status.rxfifo_cnt > 0))
     {
     	uartRxFifoToQueue(uart);
     }
+#endif
     if(xQueuePeek(uart->queue, &c, 0)) {
         return c;
     }
@@ -416,7 +454,7 @@ void uartWriteBuf(uart_t* uart, const uint8_t * data, size_t len)
 
 void uartFlush(uart_t* uart)
 {
-    uartFlushTxOnly(uart,false);
+    uartFlushTxOnly(uart,true);
 }
 
 void uartFlushTxOnly(uart_t* uart, bool txOnly)
@@ -455,9 +493,7 @@ void uartSetBaudRate(uart_t* uart, uint32_t baud_rate)
         return;
     }
     UART_MUTEX_LOCK();
-    uint32_t clk_div = ((getApbFrequency()<<4)/baud_rate);
-    uart->dev->clk_div.div_int = clk_div>>4 ;
-    uart->dev->clk_div.div_frag = clk_div & 0xf;
+    uart_ll_set_baudrate(uart->dev, baud_rate);
     UART_MUTEX_UNLOCK();
 }
 
@@ -654,15 +690,17 @@ unsigned long uartBaudrateDetect(uart_t *uart, bool flg)
 */
 void uartStartDetectBaudrate(uart_t *uart) {
   if(!uart) return;
-
+#ifndef CONFIG_IDF_TARGET_ESP32C3
   uart->dev->auto_baud.glitch_filt = 0x08;
   uart->dev->auto_baud.en = 0;
   uart->dev->auto_baud.en = 1;
+#endif
 }
 
 unsigned long
 uartDetectBaudrate(uart_t *uart)
 {
+#ifndef CONFIG_IDF_TARGET_ESP32C3
     static bool uartStateDetectingBaudrate = false;
 
     if(!uartStateDetectingBaudrate) {
@@ -697,6 +735,9 @@ uartDetectBaudrate(uart_t *uart)
     }
 
     return default_rates[i];
+#else
+    return 0;
+#endif
 }
 
 /*

cores/esp32/esp32-hal-uart.h

@@ -51,8 +51,8 @@ extern "C" {
 struct uart_struct_t;
 typedef struct uart_struct_t uart_t;
 
-uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint16_t queueLen, bool inverted);
-void uartEnd(uart_t* uart);
+uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rxPin, int8_t txPin, uint16_t queueLen, bool inverted, uint8_t rxfifo_full_thrhd);
+void uartEnd(uart_t* uart, uint8_t rxPin, uint8_t txPin);
 
 uint32_t uartAvailable(uart_t* uart);
 uint32_t uartAvailableForWrite(uart_t* uart);
@@ -70,6 +70,8 @@ uint32_t uartGetBaudRate(uart_t* uart);
 
 size_t uartResizeRxBuffer(uart_t* uart, size_t new_size);
 
+void uartSetRxInvert(uart_t* uart, bool invert);
+
 void uartSetDebug(uart_t* uart);
 int uartGetDebug();
 

cores/esp32/esp_arduino_version.h

@@ -0,0 +1,46 @@
+// Copyright 2019 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Major version number (X.x.x) */
+#define ESP_ARDUINO_VERSION_MAJOR   2
+/** Minor version number (x.X.x) */
+#define ESP_ARDUINO_VERSION_MINOR   0
+/** Patch version number (x.x.X) */
+#define ESP_ARDUINO_VERSION_PATCH   0
+
+/**
+ * Macro to convert ARDUINO version number into an integer
+ *
+ * To be used in comparisons, such as ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(2, 0, 0)
+ */
+#define ESP_ARDUINO_VERSION_VAL(major, minor, patch) ((major << 16) | (minor << 8) | (patch))
+
+/**
+ * Current ARDUINO version, as an integer
+ *
+ * To be used in comparisons, such as ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(2, 0, 0)
+ */
+#define ESP_ARDUINO_VERSION  ESP_ARDUINO_VERSION_VAL(ESP_ARDUINO_VERSION_MAJOR, \
+                                             ESP_ARDUINO_VERSION_MINOR, \
+                                             ESP_ARDUINO_VERSION_PATCH)
+
+#ifdef __cplusplus
+}
+#endif

cores/esp32/main.cpp

@@ -6,6 +6,10 @@
 #include "USB.h"
 #endif
 
+#ifndef CONFIG_ARDUINO_LOOP_STACK_SIZE
+#define CONFIG_ARDUINO_LOOP_STACK_SIZE 8192
+#endif
+
 TaskHandle_t loopTaskHandle = NULL;
 
 #if CONFIG_AUTOSTART_ARDUINO
@@ -44,7 +48,7 @@ extern "C" void app_main()
 #endif
     loopTaskWDTEnabled = false;
     initArduino();
-    xTaskCreateUniversal(loopTask, "loopTask", 8192, NULL, 1, &loopTaskHandle, ARDUINO_RUNNING_CORE);
+    xTaskCreateUniversal(loopTask, "loopTask", CONFIG_ARDUINO_LOOP_STACK_SIZE, NULL, 1, &loopTaskHandle, ARDUINO_RUNNING_CORE);
 }
 
 #endif

cores/esp32/pgmspace.h

@@ -53,6 +53,8 @@ typedef unsigned long prog_uint32_t;
   *(void * const *)(_addr); \
 })
 
+#define pgm_get_far_address(x) ((uint32_t)(&(x)))
+
 #define pgm_read_byte_near(addr)  pgm_read_byte(addr)
 #define pgm_read_word_near(addr)  pgm_read_word(addr)
 #define pgm_read_dword_near(addr) pgm_read_dword(addr)

cores/esp32/wiring_shift.c

@@ -16,7 +16,7 @@
  Boston, MA  02111-1307  USA
  $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
  */
- 
+
 #include "esp32-hal.h"
 #include "wiring_private.h"
 

docs/ISSUE_TEMPLATE.md

@@ -1,26 +1,28 @@
 Make your question, not a Statement, inclusive. Include all pertinent information:
 
-What you are trying to do.
-Describe your system( Hardware, computer, O/S, core version, environment)
-Describe what is failing
-Show the shortest possible code that will duplicate the error
-Show the EXACT error message(it doesn't work is not enough)
+What you are trying to do  
+Describe your system (Hardware, computer, O/S, core version, environment)  
+Describe what is failing  
+Show the shortest possible code that will duplicate the error  
+Show the EXACT error message (it doesn't work is not enough)  
 Then if someone is interested and knowledgeable you might get a answer.  All of this work on your part shows us that you have worked to solve YOUR problem. The more complete your issue posting is, the more likely someone will volunteer their time to help you.
 
 If you have a Guru Meditation Error or Backtrace, ***please decode it***:
-https://github.com/me-no-dev/EspExceptionDecoder
+[ExceptionDecoder](https://github.com/me-no-dev/EspExceptionDecoder)
 
 ----------------------------- Remove above -----------------------------
 
 
 ### Hardware:
-Board:							?ESP32 Dev Module? ?node32? ?ttgo_lora?
-Core Installation/update date:			?11/jul/2017?
-IDE name:							?Arduino IDE? ?Platform.io? ?IDF component?
-Flash Frequency:					?40Mhz?
-PSRAM enabled:                                          ?no?
-Upload Speed:						?115200?
-Computer OS:                                            ?Windows 10? ?Mac OSX? ?Ubuntu?
+|||||||
+|:---|---|---|---|---|---|
+|<B>Board</B>|ESP32 Dev Module|node32|ttgo_lora|ESP32-S2-Saola|Custom w/ ESP32-S2-WROVER 16MB|
+|<B>Version/Date</B>|1.0.4|2.0.0|0badbeef|11/jul/2017|today's master|
+|<B>IDE name</B>|Arduino IDE|Atom + Platform.io|IDF component|VSCode|
+|<B>Flash Frequency</B>|40Mhz|80Mhz|
+|<B>PSRAM enabled</B>|yes|no|
+|<B>Upload Speed</B>|115200|
+|<B>Computer OS</B>|Windows 10|Mac OSX|Ubuntu|
 
 ### Description:
 Describe your problem here

docs/arduino-ide/boards_manager.md

@@ -4,7 +4,7 @@
 - Stable release link: `https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json`
 - Development release link: `https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json`
 
-Starting with 1.6.4, Arduino allows installation of third-party platform packages using Boards Manager. We have packages available for Windows, Mac OS, and Linux (32, 64 bit and ARM).
+Starting with 1.6.4, Arduino allows installation of third-party platform packages using Boards Manager. We have packages available for Windows, Mac OS, and Linux (x86, amd64, armhf and arm64).
 
 - Install the current upstream Arduino IDE at the 1.8 level or later. The current version is at the [Arduino website](http://www.arduino.cc/en/main/software).
 - Start Arduino and open Preferences window.

docs/arduino-ide/debian_ubuntu.md

@@ -8,8 +8,8 @@ Installation instructions for Debian / Ubuntu OS
   sudo usermod -a -G dialout $USER && \
   sudo apt-get install git && \
   wget https://bootstrap.pypa.io/get-pip.py && \
-  sudo python get-pip.py && \
-  sudo pip install pyserial && \
+  sudo python3 get-pip.py && \
+  sudo pip3 install pyserial && \
   mkdir -p ~/Arduino/hardware/espressif && \
   cd ~/Arduino/hardware/espressif && \
   git clone https://github.com/espressif/arduino-esp32.git esp32 && \

docs/arduino-ide/mac.md

@@ -7,9 +7,9 @@ Installation instructions for Mac OS
   ```bash
   mkdir -p ~/Documents/Arduino/hardware/espressif && \
   cd ~/Documents/Arduino/hardware/espressif && \
-  git clone https://github.com/espressif/arduino-esp32.git esp32 && \
+  git clone https://github.com/espressif/arduino-esp32.git esp32 --depth 1 && \
   cd esp32 && \
-  git submodule update --init --recursive && \
+  git submodule update --init --recursive --depth 1 && \
   cd tools && \
   python get.py 
   ```

docs/esp-idf_component.md

@@ -72,6 +72,11 @@ If you are writing code that does not require Arduino to compile and you want yo
 #endif
 ```
 
+## FreeRTOS Tick Rate (Hz)
+
+You might notice that Arduino-esp32's `delay()` function will only work in multiples of 10ms. That is because, by default, esp-idf handles task events 100 times per second.
+To fix that behavior you need to set FreeRTOS tick rate to 1000Hz in `make menuconfig` -> `Component config` -> `FreeRTOS` -> `Tick rate`.
+
 ## Compilation Errors
 
 As commits are made to esp-idf and submodules, the codebases can develop incompatibilities which cause compilation errors.  If you have problems compiling, follow the instructions in [Issue #1142](https://github.com/espressif/arduino-esp32/issues/1142) to roll esp-idf back to a known good version.

libraries/ArduinoOTA/examples/OTAWebUpdater/OTAWebUpdater.ino

@@ -14,7 +14,7 @@ WebServer server(80);
  * Login page
  */
 
-const char* loginIndex = 
+const char* loginIndex =
  "<form name='loginForm'>"
     "<table width='20%' bgcolor='A09F9F' align='center'>"
         "<tr>"
@@ -25,8 +25,9 @@ const char* loginIndex =
             "<br>"
             "<br>"
         "</tr>"
-        "<td>Username:</td>"
-        "<td><input type='text' size=25 name='userid'><br></td>"
+        "<tr>"
+             "<td>Username:</td>"
+             "<td><input type='text' size=25 name='userid'><br></td>"
         "</tr>"
         "<br>"
         "<br>"
@@ -54,12 +55,12 @@ const char* loginIndex =
     "}"
     "}"
 "</script>";
- 
+
 /*
  * Server Index Page
  */
- 
-const char* serverIndex = 
+
+const char* serverIndex =
 "<script src='https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js'></script>"
 "<form method='POST' action='#' enctype='multipart/form-data' id='upload_form'>"
    "<input type='file' name='update'>"
@@ -88,7 +89,7 @@ const char* serverIndex =
   "return xhr;"
   "},"
   "success:function(d, s) {"
-  "console.log('success!')" 
+  "console.log('success!')"
  "},"
  "error: function (a, b, c) {"
  "}"

libraries/ArduinoOTA/src/ArduinoOTA.cpp

@@ -88,6 +88,17 @@ ArduinoOTAClass& ArduinoOTAClass::setPasswordHash(const char * password) {
     return *this;
 }
 
+ArduinoOTAClass& ArduinoOTAClass::setPartitionLabel(const char * partition_label) {
+    if (!_initialized && !_partition_label.length() && partition_label) {
+        _partition_label = partition_label;
+    }
+    return *this;
+}
+
+String ArduinoOTAClass::getPartitionLabel() {
+    return _partition_label;
+}
+
 ArduinoOTAClass& ArduinoOTAClass::setRebootOnSuccess(bool reboot){
     _rebootOnSuccess = reboot;
     return *this;
@@ -235,7 +246,8 @@ void ArduinoOTAClass::_onRx(){
 }
 
 void ArduinoOTAClass::_runUpdate() {
-    if (!Update.begin(_size, _cmd)) {
+    const char *partition_label = _partition_label.length() ? _partition_label.c_str() : NULL;
+    if (!Update.begin(_size, _cmd, -1, LOW, partition_label)) {
 
         log_e("Begin ERROR: %s", Update.errorString());
 
@@ -358,7 +370,7 @@ void ArduinoOTAClass::end() {
 
 void ArduinoOTAClass::handle() {
     if (!_initialized) {
-        return; 
+        return;
     }
     if (_state == OTA_RUNUPDATE) {
         _runUpdate();

libraries/ArduinoOTA/src/ArduinoOTA.h

@@ -44,6 +44,10 @@ class ArduinoOTAClass
     //Sets the password as above but in the form MD5(password). Default NULL
     ArduinoOTAClass& setPasswordHash(const char *password);
 
+    //Sets the partition label to write to when updating SPIFFS. Default NULL
+    ArduinoOTAClass &setPartitionLabel(const char *partition_label);
+    String getPartitionLabel();
+
     //Sets if the device should be rebooted after successful update. Default true
     ArduinoOTAClass& setRebootOnSuccess(bool reboot);
 
@@ -80,6 +84,7 @@ class ArduinoOTAClass
     int _port;
     String _password;
     String _hostname;
+    String _partition_label;
     String _nonce;
     WiFiUDP _udp_ota;
     bool _initialized;

libraries/AsyncUDP/src/AsyncUDP.cpp

@@ -150,7 +150,7 @@ static bool _udp_task_start(){
         }
     }
     if(!_udp_task_handle){
-        xTaskCreateUniversal(_udp_task, "async_udp", 4096, NULL, 3, (TaskHandle_t*)&_udp_task_handle, CONFIG_ARDUINO_UDP_RUNNING_CORE);
+        xTaskCreateUniversal(_udp_task, "async_udp", 4096, NULL, CONFIG_ARDUINO_UDP_TASK_PRIORITY, (TaskHandle_t*)&_udp_task_handle, CONFIG_ARDUINO_UDP_RUNNING_CORE);
         if(!_udp_task_handle){
             return false;
         }
@@ -277,6 +277,22 @@ void AsyncUDPMessage::flush()
     _index = 0;
 }
 
+AsyncUDPPacket::AsyncUDPPacket(AsyncUDPPacket &packet){
+    _udp = packet._udp;
+    _pb = packet._pb;
+    _if = packet._if;
+    _data = packet._data;
+    _len = packet._len;
+    _index = 0;
+
+    memcpy(&_remoteIp, &packet._remoteIp, sizeof(ip_addr_t));
+    memcpy(&_localIp, &packet._localIp, sizeof(ip_addr_t));
+    _localPort = packet._localPort;
+    _remotePort = packet._remotePort;
+    memcpy(_remoteMac, packet._remoteMac, 6);
+
+    pbuf_ref(_pb);
+}
 
 AsyncUDPPacket::AsyncUDPPacket(AsyncUDP *udp, pbuf *pb, const ip_addr_t *raddr, uint16_t rport, struct netif * ntif)
 {
@@ -294,18 +310,18 @@ AsyncUDPPacket::AsyncUDPPacket(AsyncUDP *udp, pbuf *pb, const ip_addr_t *raddr,
     _localIp.type = _remoteIp.type;
 
     eth_hdr* eth = NULL;
-    udp_hdr* udphdr = reinterpret_cast<udp_hdr*>(_data - UDP_HLEN);
+    udp_hdr* udphdr = (udp_hdr *)(_data - UDP_HLEN);
     _localPort = ntohs(udphdr->dest);
     _remotePort = ntohs(udphdr->src);
 
     if (_remoteIp.type == IPADDR_TYPE_V4) {
-        eth = (eth_hdr *)(((uint8_t *)(pb->payload)) - UDP_HLEN - IP_HLEN - SIZEOF_ETH_HDR);
-        struct ip_hdr * iphdr = (struct ip_hdr *)(((uint8_t *)(pb->payload)) - UDP_HLEN - IP_HLEN);
+        eth = (eth_hdr *)(_data - UDP_HLEN - IP_HLEN - SIZEOF_ETH_HDR);
+        struct ip_hdr * iphdr = (struct ip_hdr *)(_data - UDP_HLEN - IP_HLEN);
         _localIp.u_addr.ip4.addr = iphdr->dest.addr;
         _remoteIp.u_addr.ip4.addr = iphdr->src.addr;
     } else {
-        eth = (eth_hdr *)(((uint8_t *)(pb->payload)) - UDP_HLEN - IP6_HLEN - SIZEOF_ETH_HDR);
-        struct ip6_hdr * ip6hdr = (struct ip6_hdr *)(((uint8_t *)(pb->payload)) - UDP_HLEN - IP6_HLEN);
+        eth = (eth_hdr *)(_data - UDP_HLEN - IP6_HLEN - SIZEOF_ETH_HDR);
+        struct ip6_hdr * ip6hdr = (struct ip6_hdr *)(_data - UDP_HLEN - IP6_HLEN);
         memcpy(&_localIp.u_addr.ip6.addr, (uint8_t *)ip6hdr->dest.addr, 16);
         memcpy(&_remoteIp.u_addr.ip6.addr, (uint8_t *)ip6hdr->src.addr, 16);
     }
@@ -479,6 +495,7 @@ AsyncUDP::AsyncUDP()
 {
     _pcb = NULL;
     _connected = false;
+	_lastErr = ERR_OK;
     _handler = NULL;
 }
 
@@ -517,8 +534,8 @@ bool AsyncUDP::connect(const ip_addr_t *addr, uint16_t port)
     }
     close();
     UDP_MUTEX_LOCK();
-    err_t err = _udp_connect(_pcb, addr, port);
-    if(err != ERR_OK) {
+    _lastErr = _udp_connect(_pcb, addr, port);
+    if(_lastErr != ERR_OK) {
         UDP_MUTEX_UNLOCK();
         return false;
     }
@@ -646,7 +663,7 @@ size_t AsyncUDP::writeTo(const uint8_t * data, size_t len, const ip_addr_t * add
     if(len > CONFIG_TCP_MSS) {
         len = CONFIG_TCP_MSS;
     }
-    err_t err = ERR_OK;
+    _lastErr = ERR_OK;
     pbuf* pbt = pbuf_alloc(PBUF_TRANSPORT, len, PBUF_RAM);
     if(pbt != NULL) {
         uint8_t* dst = reinterpret_cast<uint8_t*>(pbt->payload);
@@ -656,16 +673,16 @@ size_t AsyncUDP::writeTo(const uint8_t * data, size_t len, const ip_addr_t * add
             void * nif = NULL;
             tcpip_adapter_get_netif((tcpip_adapter_if_t)tcpip_if, &nif);
             if(!nif){
-                err = _udp_sendto(_pcb, pbt, addr, port);
+                _lastErr = _udp_sendto(_pcb, pbt, addr, port);
             } else {
-                err = _udp_sendto_if(_pcb, pbt, addr, port, (struct netif *)nif);
+                _lastErr = _udp_sendto_if(_pcb, pbt, addr, port, (struct netif *)nif);
             }
         } else {
-            err = _udp_sendto(_pcb, pbt, addr, port);
+            _lastErr = _udp_sendto(_pcb, pbt, addr, port);
         }
         UDP_MUTEX_UNLOCK();
         pbuf_free(pbt);
-        if(err < ERR_OK) {
+        if(_lastErr < ERR_OK) {
             return 0;
         }
         return len;
@@ -682,9 +699,8 @@ void AsyncUDP::_recv(udp_pcb *upcb, pbuf *pb, const ip_addr_t *addr, uint16_t po
         if(_handler) {
             AsyncUDPPacket packet(this, this_pb, addr, port, netif);
             _handler(packet);
-        } else {
-            pbuf_free(this_pb);
         }
+        pbuf_free(this_pb);
     }
 }
 
@@ -870,6 +886,10 @@ bool AsyncUDP::connected()
     return _connected;
 }
 
+esp_err_t AsyncUDP::lastErr() {
+	return _lastErr;
+}
+
 void AsyncUDP::onPacket(AuPacketHandlerFunctionWithArg cb, void * arg)
 {
     onPacket(std::bind(cb, arg, std::placeholders::_1));

libraries/AsyncUDP/src/AsyncUDP.h

@@ -58,6 +58,7 @@ protected:
     size_t _len;
     size_t _index;
 public:
+    AsyncUDPPacket(AsyncUDPPacket &packet);
     AsyncUDPPacket(AsyncUDP *udp, pbuf *pb, const ip_addr_t *addr, uint16_t port, struct netif * netif);
     virtual ~AsyncUDPPacket();
 
@@ -95,6 +96,7 @@ protected:
     udp_pcb *_pcb;
     //xSemaphoreHandle _lock;
     bool _connected;
+	esp_err_t _lastErr;
     AuPacketHandlerFunction _handler;
 
     bool _init();
@@ -144,6 +146,7 @@ public:
     IPAddress listenIP();
     IPv6Address listenIPv6();
     bool connected();
+	esp_err_t lastErr();
     operator bool();
 
     static void _s_recv(void *arg, udp_pcb *upcb, pbuf *p, const ip_addr_t *addr, uint16_t port, struct netif * netif);

libraries/BLE/examples/BLE_Beacon_Scanner/BLE_Beacon_Scanner.ino

@@ -0,0 +1,153 @@
+/*
+   Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleScan.cpp
+   Ported to Arduino ESP32 by Evandro Copercini
+   Changed to a beacon scanner to report iBeacon, EddystoneURL and EddystoneTLM beacons by beegee-tokyo
+*/
+
+#include <Arduino.h>
+
+#include <BLEDevice.h>
+#include <BLEUtils.h>
+#include <BLEScan.h>
+#include <BLEAdvertisedDevice.h>
+#include <BLEEddystoneURL.h>
+#include <BLEEddystoneTLM.h>
+#include <BLEBeacon.h>
+
+#define ENDIAN_CHANGE_U16(x) ((((x)&0xFF00) >> 8) + (((x)&0xFF) << 8))
+
+int scanTime = 5; //In seconds
+BLEScan *pBLEScan;
+
+class MyAdvertisedDeviceCallbacks : public BLEAdvertisedDeviceCallbacks
+{
+    void onResult(BLEAdvertisedDevice advertisedDevice)
+    {
+      if (advertisedDevice.haveName())
+      {
+        Serial.print("Device name: ");
+        Serial.println(advertisedDevice.getName().c_str());
+        Serial.println("");
+      }
+
+      if (advertisedDevice.haveServiceUUID())
+      {
+        BLEUUID devUUID = advertisedDevice.getServiceUUID();
+        Serial.print("Found ServiceUUID: ");
+        Serial.println(devUUID.toString().c_str());
+        Serial.println("");
+      }
+      else
+      {
+        if (advertisedDevice.haveManufacturerData() == true)
+        {
+          std::string strManufacturerData = advertisedDevice.getManufacturerData();
+
+          uint8_t cManufacturerData[100];
+          strManufacturerData.copy((char *)cManufacturerData, strManufacturerData.length(), 0);
+
+          if (strManufacturerData.length() == 25 && cManufacturerData[0] == 0x4C && cManufacturerData[1] == 0x00)
+          {
+            Serial.println("Found an iBeacon!");
+            BLEBeacon oBeacon = BLEBeacon();
+            oBeacon.setData(strManufacturerData);
+            Serial.printf("iBeacon Frame\n");
+            Serial.printf("ID: %04X Major: %d Minor: %d UUID: %s Power: %d\n", oBeacon.getManufacturerId(), ENDIAN_CHANGE_U16(oBeacon.getMajor()), ENDIAN_CHANGE_U16(oBeacon.getMinor()), oBeacon.getProximityUUID().toString().c_str(), oBeacon.getSignalPower());
+          }
+          else
+          {
+            Serial.println("Found another manufacturers beacon!");
+            Serial.printf("strManufacturerData: %d ", strManufacturerData.length());
+            for (int i = 0; i < strManufacturerData.length(); i++)
+            {
+              Serial.printf("[%X]", cManufacturerData[i]);
+            }
+            Serial.printf("\n");
+          }
+        }
+        return;
+      }
+
+      uint8_t *payLoad = advertisedDevice.getPayload();
+
+      BLEUUID checkUrlUUID = (uint16_t)0xfeaa;
+
+      if (advertisedDevice.getServiceUUID().equals(checkUrlUUID))
+      {
+        if (payLoad[11] == 0x10)
+        {
+          Serial.println("Found an EddystoneURL beacon!");
+          BLEEddystoneURL foundEddyURL = BLEEddystoneURL();
+          std::string eddyContent((char *)&payLoad[11]); // incomplete EddystoneURL struct!
+
+          foundEddyURL.setData(eddyContent);
+          std::string bareURL = foundEddyURL.getURL();
+          if (bareURL[0] == 0x00)
+          {
+            size_t payLoadLen = advertisedDevice.getPayloadLength();
+            Serial.println("DATA-->");
+            for (int idx = 0; idx < payLoadLen; idx++)
+            {
+              Serial.printf("0x%08X ", payLoad[idx]);
+            }
+            Serial.println("\nInvalid Data");
+            return;
+          }
+
+          Serial.printf("Found URL: %s\n", foundEddyURL.getURL().c_str());
+          Serial.printf("Decoded URL: %s\n", foundEddyURL.getDecodedURL().c_str());
+          Serial.printf("TX power %d\n", foundEddyURL.getPower());
+          Serial.println("\n");
+        }
+        else if (payLoad[11] == 0x20)
+        {
+          Serial.println("Found an EddystoneTLM beacon!");
+          BLEEddystoneTLM foundEddyURL = BLEEddystoneTLM();
+          std::string eddyContent((char *)&payLoad[11]); // incomplete EddystoneURL struct!
+
+          eddyContent = "01234567890123";
+
+          for (int idx = 0; idx < 14; idx++)
+          {
+            eddyContent[idx] = payLoad[idx + 11];
+          }
+
+          foundEddyURL.setData(eddyContent);
+          Serial.printf("Reported battery voltage: %dmV\n", foundEddyURL.getVolt());
+          Serial.printf("Reported temperature from TLM class: %.2fC\n", (double)foundEddyURL.getTemp());
+          int temp = (int)payLoad[16] + (int)(payLoad[15] << 8);
+          float calcTemp = temp / 256.0f;
+          Serial.printf("Reported temperature from data: %.2fC\n", calcTemp);
+          Serial.printf("Reported advertise count: %d\n", foundEddyURL.getCount());
+          Serial.printf("Reported time since last reboot: %ds\n", foundEddyURL.getTime());
+          Serial.println("\n");
+          Serial.print(foundEddyURL.toString().c_str());
+          Serial.println("\n");
+        }
+      }
+    }
+};
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println("Scanning...");
+
+  BLEDevice::init("");
+  pBLEScan = BLEDevice::getScan(); //create new scan
+  pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
+  pBLEScan->setActiveScan(true); //active scan uses more power, but get results faster
+  pBLEScan->setInterval(100);
+  pBLEScan->setWindow(99); // less or equal setInterval value
+}
+
+void loop()
+{
+  // put your main code here, to run repeatedly:
+  BLEScanResults foundDevices = pBLEScan->start(scanTime, false);
+  Serial.print("Devices found: ");
+  Serial.println(foundDevices.getCount());
+  Serial.println("Scan done!");
+  pBLEScan->clearResults(); // delete results fromBLEScan buffer to release memory
+  delay(2000);
+}

libraries/BLE/examples/BLE_Beacon_Scanner/BLE_Beacon_Scanner.md

@@ -0,0 +1,9 @@
+## BLE Beacon Scanner
+
+Initiates a BLE device scan.
+Checks if the discovered devices are 
+- an iBeacon
+- an Eddystone TLM beacon
+- an Eddystone URL beacon
+
+and sends the decoded beacon information over Serial log

libraries/BLE/examples/BLE_EddystoneTLM_Beacon/BLE_EddystoneTLM_Beacon.ino

@@ -0,0 +1,116 @@
+/*
+   EddystoneTLM beacon by BeeGee based on https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchbook/ESP32_Eddystone_TLM_deepsleep/ESP32_Eddystone_TLM_deepsleep.ino
+   EddystoneTLM frame specification https://github.com/google/eddystone/blob/master/eddystone-tlm/tlm-plain.md
+*/
+
+/*
+   Create a BLE server that will send periodic Eddystone URL frames.
+   The design of creating the BLE server is:
+   1. Create a BLE Server
+   2. Create advertising data
+   3. Start advertising.
+   4. wait
+   5. Stop advertising.
+   6. deep sleep
+   
+*/
+#include "sys/time.h"
+
+#include <Arduino.h>
+
+#include "BLEDevice.h"
+#include "BLEUtils.h"
+#include "BLEBeacon.h"
+#include "BLEAdvertising.h"
+#include "BLEEddystoneURL.h"
+
+#include "esp_sleep.h"
+
+#define GPIO_DEEP_SLEEP_DURATION 10     // sleep x seconds and then wake up
+RTC_DATA_ATTR static time_t last;    // remember last boot in RTC Memory
+RTC_DATA_ATTR static uint32_t bootcount; // remember number of boots in RTC Memory
+
+// See the following for generating UUIDs:
+// https://www.uuidgenerator.net/
+BLEAdvertising *pAdvertising;
+struct timeval nowTimeStruct;
+
+time_t lastTenth;
+
+#define BEACON_UUID "8ec76ea3-6668-48da-9866-75be8bc86f4d" // UUID 1 128-Bit (may use linux tool uuidgen or random numbers via https://www.uuidgenerator.net/)
+
+// Check
+// https://github.com/google/eddystone/blob/master/eddystone-tlm/tlm-plain.md
+// and http://www.hugi.scene.org/online/coding/hugi%2015%20-%20cmtadfix.htm
+// for the temperature value. It is a 8.8 fixed-point notation
+void setBeacon()
+{
+  char beacon_data[25];
+  uint16_t beconUUID = 0xFEAA;
+  uint16_t volt = random(2800, 3700); // 3300mV = 3.3V
+  float tempFloat = random(2000, 3100) / 100.0f;
+  Serial.printf("Random temperature is %.2fC\n", tempFloat);
+  int temp = (int)(tempFloat * 256); //(uint16_t)((float)23.00);
+  Serial.printf("Converted to 8.8 format %0X%0X\n", (temp >> 8), (temp & 0xFF));
+
+  BLEAdvertisementData oAdvertisementData = BLEAdvertisementData();
+  BLEAdvertisementData oScanResponseData = BLEAdvertisementData();
+
+  oScanResponseData.setFlags(0x06); // GENERAL_DISC_MODE 0x02 | BR_EDR_NOT_SUPPORTED 0x04
+  oScanResponseData.setCompleteServices(BLEUUID(beconUUID));
+
+  beacon_data[0] = 0x20;                // Eddystone Frame Type (Unencrypted Eddystone-TLM)
+  beacon_data[1] = 0x00;                // TLM version
+  beacon_data[2] = (volt >> 8);           // Battery voltage, 1 mV/bit i.e. 0xCE4 = 3300mV = 3.3V
+  beacon_data[3] = (volt & 0xFF);           //
+  beacon_data[4] = (temp >> 8);           // Beacon temperature
+  beacon_data[5] = (temp & 0xFF);           //
+  beacon_data[6] = ((bootcount & 0xFF000000) >> 24);  // Advertising PDU count
+  beacon_data[7] = ((bootcount & 0xFF0000) >> 16);  //
+  beacon_data[8] = ((bootcount & 0xFF00) >> 8);   //
+  beacon_data[9] = (bootcount & 0xFF);        //
+  beacon_data[10] = ((lastTenth & 0xFF000000) >> 24); // Time since power-on or reboot as 0.1 second resolution counter
+  beacon_data[11] = ((lastTenth & 0xFF0000) >> 16);   //
+  beacon_data[12] = ((lastTenth & 0xFF00) >> 8);    //
+  beacon_data[13] = (lastTenth & 0xFF);       //
+
+  oScanResponseData.setServiceData(BLEUUID(beconUUID), std::string(beacon_data, 14));
+  oAdvertisementData.setName("TLMBeacon");
+  pAdvertising->setAdvertisementData(oAdvertisementData);
+  pAdvertising->setScanResponseData(oScanResponseData);
+}
+
+void setup()
+{
+
+  Serial.begin(115200);
+  gettimeofday(&nowTimeStruct, NULL);
+
+  Serial.printf("start ESP32 %d\n", bootcount++);
+
+  Serial.printf("deep sleep (%lds since last reset, %lds since last boot)\n", nowTimeStruct.tv_sec, nowTimeStruct.tv_sec - last);
+
+  last = nowTimeStruct.tv_sec;
+  lastTenth = nowTimeStruct.tv_sec * 10; // Time since last reset as 0.1 second resolution counter
+
+  // Create the BLE Device
+  BLEDevice::init("TLMBeacon");
+
+  BLEDevice::setPower(ESP_PWR_LVL_N12);
+
+  pAdvertising = BLEDevice::getAdvertising();
+
+  setBeacon();
+  // Start advertising
+  pAdvertising->start();
+  Serial.println("Advertizing started for 10s ...");
+  delay(10000);
+  pAdvertising->stop();
+  Serial.printf("enter deep sleep for 10s\n");
+  esp_deep_sleep(1000000LL * GPIO_DEEP_SLEEP_DURATION);
+  Serial.printf("in deep sleep\n");
+}
+
+void loop()
+{
+}

libraries/BLE/examples/BLE_EddystoneTLM_Beacon/BLE_EddystoneTLM_Beacon.md

@@ -0,0 +1,14 @@
+## Eddystone TLM beacon
+EddystoneTLM beacon by BeeGee based on
+[pcbreflux ESP32 Eddystone TLM deepsleep](https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchbook/ESP32_Eddystone_TLM_deepsleep/ESP32_Eddystone_TLM_deepsleep.ino)
+
+[EddystoneTLM frame specification](https://github.com/google/eddystone/blob/master/eddystone-tlm/tlm-plain.md)
+
+   Create a BLE server that will send periodic Eddystone TLM frames.
+   The design of creating the BLE server is:
+   1. Create a BLE Server
+   2. Create advertising data
+   3. Start advertising.
+   4. wait
+   5. Stop advertising.
+   6. deep sleep

libraries/BLE/examples/BLE_EddystoneURL_Beacon/BLE_EddystoneURL_Beacon.ino

@@ -0,0 +1,192 @@
+/*
+   EddystoneURL beacon by BeeGee
+   EddystoneURL frame specification https://github.com/google/eddystone/blob/master/eddystone-url/README.md
+
+*/
+
+/*
+   Create a BLE server that will send periodic Eddystone URL frames.
+   The design of creating the BLE server is:
+   1. Create a BLE Server
+   2. Create advertising data
+   3. Start advertising.
+   4. wait
+   5. Stop advertising.
+   6. deep sleep
+
+*/
+#include "sys/time.h"
+
+#include <Arduino.h>
+
+#include "BLEDevice.h"
+#include "BLEUtils.h"
+#include "BLEBeacon.h"
+#include "BLEAdvertising.h"
+#include "BLEEddystoneURL.h"
+
+#include "esp_sleep.h"
+
+#define GPIO_DEEP_SLEEP_DURATION 10     // sleep x seconds and then wake up
+RTC_DATA_ATTR static time_t last;    // remember last boot in RTC Memory
+RTC_DATA_ATTR static uint32_t bootcount; // remember number of boots in RTC Memory
+
+// See the following for generating UUIDs:
+// https://www.uuidgenerator.net/
+BLEAdvertising *pAdvertising;
+struct timeval now;
+
+#define BEACON_UUID "8ec76ea3-6668-48da-9866-75be8bc86f4d" // UUID 1 128-Bit (may use linux tool uuidgen or random numbers via https://www.uuidgenerator.net/)
+
+static const char *eddystone_url_prefix_subs[] = {
+  "http://www.",
+  "https://www.",
+  "http://",
+  "https://",
+  "urn:uuid:",
+  NULL
+};
+
+static const char *eddystone_url_suffix_subs[] = {
+  ".com/",
+  ".org/",
+  ".edu/",
+  ".net/",
+  ".info/",
+  ".biz/",
+  ".gov/",
+  ".com",
+  ".org",
+  ".edu",
+  ".net",
+  ".info",
+  ".biz",
+  ".gov",
+  NULL
+};
+
+static int string_begin_with(const char *str, const char *prefix)
+{
+  int prefix_len = strlen(prefix);
+  if (strncmp(prefix, str, prefix_len) == 0)
+  {
+    return prefix_len;
+  }
+  return 0;
+}
+
+void setBeacon()
+{
+  BLEAdvertisementData oAdvertisementData = BLEAdvertisementData();
+  BLEAdvertisementData oScanResponseData = BLEAdvertisementData();
+
+  const char url[] = "https://d.giesecke.tk";
+
+  int scheme_len, ext_len = 1, i, idx, url_idx;
+  char *ret_data;
+  int url_len = strlen(url);
+
+  ret_data = (char *)calloc(1, url_len + 13);
+
+  ret_data[0] = 2;   // Len
+  ret_data[1] = 0x01;  // Type Flags
+  ret_data[2] = 0x06;  // GENERAL_DISC_MODE 0x02 | BR_EDR_NOT_SUPPORTED 0x04
+  ret_data[3] = 3;   // Len
+  ret_data[4] = 0x03;  // Type 16-Bit UUID
+  ret_data[5] = 0xAA;  // Eddystone UUID 2 -> 0xFEAA LSB
+  ret_data[6] = 0xFE;  // Eddystone UUID 1 MSB
+  ret_data[7] = 19; // Length of Beacon Data
+  ret_data[8] = 0x16;  // Type Service Data
+  ret_data[9] = 0xAA;  // Eddystone UUID 2 -> 0xFEAA LSB
+  ret_data[10] = 0xFE; // Eddystone UUID 1 MSB
+  ret_data[11] = 0x10; // Eddystone Frame Type
+  ret_data[12] = 0xF4; // Beacons TX power at 0m
+
+  i = 0, idx = 13, url_idx = 0;
+
+  //replace prefix
+  scheme_len = 0;
+  while (eddystone_url_prefix_subs[i] != NULL)
+  {
+    if ((scheme_len = string_begin_with(url, eddystone_url_prefix_subs[i])) > 0)
+    {
+      ret_data[idx] = i;
+      idx++;
+      url_idx += scheme_len;
+      break;
+    }
+    i++;
+  }
+  while (url_idx < url_len)
+  {
+    i = 0;
+    ret_data[idx] = url[url_idx];
+    ext_len = 1;
+    while (eddystone_url_suffix_subs[i] != NULL)
+    {
+      if ((ext_len = string_begin_with(&url[url_idx], eddystone_url_suffix_subs[i])) > 0)
+      {
+        ret_data[idx] = i;
+        break;
+      }
+      else
+      {
+        ext_len = 1; //inc 1
+      }
+      i++;
+    }
+    url_idx += ext_len;
+    idx++;
+  }
+  ret_data[7] = idx - 8;
+
+  Serial.printf("struct size %d url size %d reported len %d\n",
+                url_len + 13,
+                url_len, ret_data[7]);
+
+  Serial.printf("URL in data %s\n", &ret_data[13]);
+
+  std::string eddyStoneData(ret_data);
+
+  oAdvertisementData.addData(eddyStoneData);
+  oScanResponseData.setName("URLBeacon");
+  pAdvertising->setAdvertisementData(oAdvertisementData);
+  pAdvertising->setScanResponseData(oScanResponseData);
+}
+
+void setup()
+{
+
+  Serial.begin(115200);
+  gettimeofday(&now, NULL);
+
+  Serial.printf("start ESP32 %d\n", bootcount++);
+
+  Serial.printf("deep sleep (%lds since last reset, %lds since last boot)\n", now.tv_sec, now.tv_sec - last);
+
+  last = now.tv_sec;
+
+  // Create the BLE Device
+  BLEDevice::init("URLBeacon");
+
+  BLEDevice::setPower(ESP_PWR_LVL_N12);
+
+  // Create the BLE Server
+  // BLEServer *pServer = BLEDevice::createServer(); // <-- no longer required to instantiate BLEServer, less flash and ram usage
+
+  pAdvertising = BLEDevice::getAdvertising();
+
+  setBeacon();
+  // Start advertising
+  pAdvertising->start();
+  Serial.println("Advertizing started...");
+  delay(10000);
+  pAdvertising->stop();
+  Serial.printf("enter deep sleep\n");
+  esp_deep_sleep(1000000LL * GPIO_DEEP_SLEEP_DURATION);
+  Serial.printf("in deep sleep\n");
+}
+
+void loop()
+{
+}

libraries/BLE/examples/BLE_EddystoneURL_Beacon/BLE_EddystoneURL_Beacon.md

@@ -0,0 +1,14 @@
+## Eddystone URL beacon
+EddystoneURL beacon by BeeGee based on
+[pcbreflux ESP32 Eddystone URL deepsleep](https://github.com/pcbreflux/espressif/tree/master/esp32/arduino/sketchbook/ESP32_Eddystone_URL_deepsleep)
+
+[EddystoneURL frame specification](https://github.com/google/eddystone/blob/master/eddystone-url/README.md)
+
+   Create a BLE server that will send periodic Eddystone URL frames.
+   The design of creating the BLE server is:
+   1. Create a BLE Server
+   2. Create advertising data
+   3. Start advertising.
+   4. wait
+   5. Stop advertising.
+   6. deep sleep

libraries/BLE/src/BLE2902.cpp

@@ -10,7 +10,7 @@
  * https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.client_characteristic_configuration.xml
  */
 #include "sdkconfig.h"
-#if defined(CONFIG_BT_ENABLED)
+#if defined(CONFIG_BLUEDROID_ENABLED)
 
 #include "BLE2902.h"
 

libraries/BLE/src/BLE2902.h

@@ -8,7 +8,7 @@
 #ifndef COMPONENTS_CPP_UTILS_BLE2902_H_
 #define COMPONENTS_CPP_UTILS_BLE2902_H_
 #include "sdkconfig.h"
-#if defined(CONFIG_BT_ENABLED)
+#if defined(CONFIG_BLUEDROID_ENABLED)
 
 #include "BLEDescriptor.h"
 
@@ -30,5 +30,5 @@ public:
 
 }; // BLE2902
 
-#endif /* CONFIG_BT_ENABLED */
+#endif /* CONFIG_BLUEDROID_ENABLED */
 #endif /* COMPONENTS_CPP_UTILS_BLE2902_H_ */

libraries/BLE/src/BLE2904.cpp

@@ -10,7 +10,7 @@
  * https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
  */
 #include "sdkconfig.h"
-#if defined(CONFIG_BT_ENABLED)
+#if defined(CONFIG_BLUEDROID_ENABLED)
 
 #include "BLE2904.h"
 

libraries/BLE/src/BLE2904.h

@@ -8,7 +8,7 @@
 #ifndef COMPONENTS_CPP_UTILS_BLE2904_H_
 #define COMPONENTS_CPP_UTILS_BLE2904_H_
 #include "sdkconfig.h"
-#if defined(CONFIG_BT_ENABLED)
+#if defined(CONFIG_BLUEDROID_ENABLED)
 
 #include "BLEDescriptor.h"
 
@@ -70,5 +70,5 @@ private:
 	BLE2904_Data m_data;
 }; // BLE2904
 
-#endif /* CONFIG_BT_ENABLED */
+#endif /* CONFIG_BLUEDROID_ENABLED */
 #endif /* COMPONENTS_CPP_UTILS_BLE2904_H_ */

libraries/BLE/src/BLEAddress.cpp

@@ -5,7 +5,7 @@
  *      Author: kolban
  */
 #include "sdkconfig.h"
-#if defined(CONFIG_BT_ENABLED)
+#if defined(CONFIG_BLUEDROID_ENABLED)
 
 #include "BLEAddress.h"
 #include <string>
@@ -59,14 +59,37 @@ BLEAddress::BLEAddress(std::string stringAddress) {
  * @return True if the addresses are equal.
  */
 bool BLEAddress::equals(BLEAddress otherAddress) {
-	return memcmp(otherAddress.getNative(), m_address, 6) == 0;
+	return memcmp(otherAddress.getNative(), m_address, ESP_BD_ADDR_LEN) == 0;
 } // equals
 
+bool BLEAddress::operator==(const BLEAddress& otherAddress) const {
+	return memcmp(otherAddress.m_address, m_address, ESP_BD_ADDR_LEN) == 0;
+}
+
+bool BLEAddress::operator!=(const BLEAddress& otherAddress) const {
+  return !(*this == otherAddress);
+}
+
+bool BLEAddress::operator<(const BLEAddress& otherAddress) const {
+  return memcmp(otherAddress.m_address, m_address, ESP_BD_ADDR_LEN) < 0;
+}
+
+bool BLEAddress::operator<=(const BLEAddress& otherAddress) const {
+  return !(*this > otherAddress);
+}
+
+bool BLEAddress::operator>=(const BLEAddress& otherAddress) const {
+  return !(*this < otherAddress);
+}
+
+bool BLEAddress::operator>(const BLEAddress& otherAddress) const {
+  return memcmp(otherAddress.m_address, m_address, ESP_BD_ADDR_LEN) > 0;
+}
 
 /**
  * @brief Return the native representation of the address.
  * @return The native representation of the address.
- */
+ */   
 esp_bd_addr_t *BLEAddress::getNative() {
 	return &m_address;
 } // getNative

libraries/BLE/src/BLEAddress.h

@@ -8,7 +8,7 @@
 #ifndef COMPONENTS_CPP_UTILS_BLEADDRESS_H_
 #define COMPONENTS_CPP_UTILS_BLEADDRESS_H_
 #include "sdkconfig.h"
-#if defined(CONFIG_BT_ENABLED)
+#if defined(CONFIG_BLUEDROID_ENABLED)
 #include <esp_gap_ble_api.h> // ESP32 BLE
 #include <string>
 
@@ -23,6 +23,12 @@ public:
 	BLEAddress(esp_bd_addr_t address);
 	BLEAddress(std::string stringAddress);
 	bool           equals(BLEAddress otherAddress);
+  bool           operator==(const BLEAddress& otherAddress) const;
+  bool           operator!=(const BLEAddress& otherAddress) const;
+  bool           operator<(const BLEAddress& otherAddress) const;
+  bool           operator<=(const BLEAddress& otherAddress) const;
+  bool           operator>(const BLEAddress& otherAddress) const;
+  bool           operator>=(const BLEAddress& otherAddress) const;
 	esp_bd_addr_t* getNative();
 	std::string    toString();
 
@@ -30,5 +36,5 @@ private:
 	esp_bd_addr_t m_address;
 };
 
-#endif /* CONFIG_BT_ENABLED */
+#endif /* CONFIG_BLUEDROID_ENABLED */
 #endif /* COMPONENTS_CPP_UTILS_BLEADDRESS_H_ */

libraries/BLE/src/BLEAdvertisedDevice.cpp

@@ -12,7 +12,7 @@
  *      Author: kolban
  */
 #include "sdkconfig.h"
-#if defined(CONFIG_BT_ENABLED)
+#if defined(CONFIG_BLUEDROID_ENABLED)
 #include <sstream>
 #include "BLEAdvertisedDevice.h"
 #include "BLEUtils.h"
@@ -25,6 +25,7 @@ BLEAdvertisedDevice::BLEAdvertisedDevice() {
 	m_manufacturerData = "";
 	m_name             = "";
 	m_rssi             = -9999;
+	m_serviceUUIDs     = {};
 	m_serviceData      = {};
 	m_serviceDataUUIDs = {};
 	m_txPower          = 0;
@@ -34,8 +35,6 @@ BLEAdvertisedDevice::BLEAdvertisedDevice() {
 	m_haveManufacturerData = false;
 	m_haveName             = false;
 	m_haveRSSI             = false;
-	m_haveServiceData      = false;
-	m_haveServiceUUID      = false;
 	m_haveTXPower          = false;
 
 } // BLEAdvertisedDevice
@@ -107,11 +106,7 @@ BLEScan* BLEAdvertisedDevice::getScan() {
  * @return Number of service data discovered.
  */
 int BLEAdvertisedDevice::getServiceDataCount() {
-	if (m_haveServiceData)
-		return m_serviceData.size();
-	else
-		return 0;
-
+	return m_serviceData.size();
 } //getServiceDataCount
 
 /**
@@ -119,7 +114,7 @@ int BLEAdvertisedDevice::getServiceDataCount() {
  * @return The ServiceData of the advertised device.
  */
 std::string BLEAdvertisedDevice::getServiceData() {
-	return m_serviceData[0];
+	return m_serviceData.empty() ? std::string() : m_serviceData.front();
 } //getServiceData
 
 /**
@@ -130,12 +125,20 @@ std::string BLEAdvertisedDevice::getServiceData(int i) {
 	return m_serviceData[i];
 } //getServiceData
 
+/**
+ * @brief Get the number of service data UUIDs.
+ * @return Number of service data UUIDs discovered.
+ */
+int BLEAdvertisedDevice::getServiceDataUUIDCount() {
+	return m_serviceDataUUIDs.size();
+} //getServiceDataUUIDCount
+
 /**
  * @brief Get the service data UUID.
  * @return The service data UUID.
  */
 BLEUUID BLEAdvertisedDevice::getServiceDataUUID() {
-	return m_serviceDataUUIDs[0];
+	return m_serviceDataUUIDs.empty() ? BLEUUID() : m_serviceDataUUIDs.front();
 } // getServiceDataUUID
 
 /**
@@ -146,12 +149,20 @@ BLEUUID BLEAdvertisedDevice::getServiceDataUUID(int i) {
 	return m_serviceDataUUIDs[i];
 } // getServiceDataUUID
 
+/**
+ * @brief Get the number of service UUIDs.
+ * @return Number of service UUIDs discovered.
+ */
+int BLEAdvertisedDevice::getServiceUUIDCount() {
+	return m_serviceUUIDs.size();
+} //getServiceUUIDCount
+
 /**
  * @brief Get the Service UUID.
  * @return The Service UUID of the advertised device.
  */
 BLEUUID BLEAdvertisedDevice::getServiceUUID() {
-	return m_serviceUUIDs[0];
+	return m_serviceUUIDs.empty() ? BLEUUID() : m_serviceUUIDs.front();
 } // getServiceUUID
 
 /**
@@ -167,7 +178,7 @@ BLEUUID BLEAdvertisedDevice::getServiceUUID(int i) {
  * @return Return true if service is advertised
  */
 bool BLEAdvertisedDevice::isAdvertisingService(BLEUUID uuid){
-	for (int i = 0; i < m_serviceUUIDs.size(); i++) {
+	for (int i = 0; i < getServiceUUIDCount(); i++) {
 		if (m_serviceUUIDs[i].equals(uuid)) return true;
 	}
 	return false;
@@ -224,7 +235,7 @@ bool BLEAdvertisedDevice::haveRSSI() {
  * @return True if there is a service data value present.
  */
 bool BLEAdvertisedDevice::haveServiceData() {
-	return m_haveServiceData;
+	return !m_serviceData.empty();
 } // haveServiceData
 
 
@@ -233,7 +244,7 @@ bool BLEAdvertisedDevice::haveServiceData() {
  * @return True if there is a service UUID value present.
  */
 bool BLEAdvertisedDevice::haveServiceUUID() {
-	return m_haveServiceUUID;
+	return !m_serviceUUIDs.empty();
 } // haveServiceUUID
 
 
@@ -388,6 +399,15 @@ void BLEAdvertisedDevice::parseAdvertisement(uint8_t* payload, size_t total_len)
 	} // !finished
 } // parseAdvertisement
 
+/**
+ * @brief Parse the advertising payload.
+ * @param [in] payload The payload of the advertised device.
+ * @param [in] total_len The length of payload
+ */
+void BLEAdvertisedDevice::setPayload(uint8_t* payload, size_t total_len) {
+	m_payload = payload;
+	m_payloadLength = total_len;
+} // setPayload
 
 /**
  * @brief Set the address of the advertised device.
@@ -477,7 +497,6 @@ void BLEAdvertisedDevice::setServiceUUID(const char* serviceUUID) {
  */
 void BLEAdvertisedDevice::setServiceUUID(BLEUUID serviceUUID) {
 	m_serviceUUIDs.push_back(serviceUUID);
-	m_haveServiceUUID = true;
 	log_d("- addServiceUUID(): serviceUUID: %s", serviceUUID.toString().c_str());
 } // setServiceUUID
 
@@ -487,7 +506,6 @@ void BLEAdvertisedDevice::setServiceUUID(BLEUUID serviceUUID) {
  * @param [in] data ServiceData value.
  */
 void BLEAdvertisedDevice::setServiceData(std::string serviceData) {
-	m_haveServiceData = true;         // Set the flag that indicates we have service data.
 	m_serviceData.push_back(serviceData); // Save the service data that we received.
 } //setServiceData
 
@@ -497,7 +515,6 @@ void BLEAdvertisedDevice::setServiceData(std::string serviceData) {
  * @param [in] data ServiceDataUUID value.
  */
 void BLEAdvertisedDevice::setServiceDataUUID(BLEUUID uuid) {
-	m_haveServiceData = true;         // Set the flag that indicates we have service data.
 	m_serviceDataUUIDs.push_back(uuid);
 	log_d("- addServiceDataUUID(): serviceDataUUID: %s", uuid.toString().c_str());
 } // setServiceDataUUID
@@ -533,7 +550,7 @@ std::string BLEAdvertisedDevice::toString() {
 		free(pHex);
 	}
 	if (haveServiceUUID()) {
-		for (int i=0; i < m_serviceUUIDs.size(); i++) {
+		for (int i=0; i < getServiceUUIDCount(); i++) {
 		    res += ", serviceUUID: " + getServiceUUID(i).toString();
 		}
 	}
@@ -562,5 +579,5 @@ size_t BLEAdvertisedDevice::getPayloadLength() {
 	return m_payloadLength;
 }
 
-#endif /* CONFIG_BT_ENABLED */
+#endif /* CONFIG_BLUEDROID_ENABLED */
 

libraries/BLE/src/BLEAdvertisedDevice.h

@@ -8,7 +8,7 @@
 #ifndef COMPONENTS_CPP_UTILS_BLEADVERTISEDDEVICE_H_
 #define COMPONENTS_CPP_UTILS_BLEADVERTISEDDEVICE_H_
 #include "sdkconfig.h"
-#if defined(CONFIG_BT_ENABLED)
+#if defined(CONFIG_BLUEDROID_ENABLED)
 #include <esp_gattc_api.h>
 
 #include <map>
@@ -42,6 +42,8 @@ public:
 	BLEUUID     getServiceUUID();
 	BLEUUID     getServiceUUID(int i);
 	int         getServiceDataCount();
+	int         getServiceDataUUIDCount();
+	int         getServiceUUIDCount();
 	int8_t      getTXPower();
 	uint8_t* 	getPayload();
 	size_t		getPayloadLength();
@@ -64,6 +66,7 @@ private:
 	friend class BLEScan;
 
 	void parseAdvertisement(uint8_t* payload, size_t total_len=62);
+	void setPayload(uint8_t* payload, size_t total_len=62);
 	void setAddress(BLEAddress address);
 	void setAdFlag(uint8_t adFlag);
 	void setAdvertizementResult(uint8_t* payload);
@@ -82,8 +85,6 @@ private:
 	bool m_haveManufacturerData;
 	bool m_haveName;
 	bool m_haveRSSI;
-	bool m_haveServiceData;
-	bool m_haveServiceUUID;
 	bool m_haveTXPower;
 
 
@@ -123,5 +124,5 @@ public:
 	virtual void onResult(BLEAdvertisedDevice advertisedDevice) = 0;
 };
 
-#endif /* CONFIG_BT_ENABLED */
+#endif /* CONFIG_BLUEDROID_ENABLED */
 #endif /* COMPONENTS_CPP_UTILS_BLEADVERTISEDDEVICE_H_ */

libraries/BLE/src/BLEAdvertising.cpp

@@ -17,7 +17,7 @@
  *
  */
 #include "sdkconfig.h"
-#if defined(CONFIG_BT_ENABLED)
+#if defined(CONFIG_BLUEDROID_ENABLED)
 #include "BLEAdvertising.h"
 #include <esp_err.h>
 #include "BLEUtils.h"
@@ -28,7 +28,9 @@
  * @brief Construct a default advertising object.
  *
  */
-BLEAdvertising::BLEAdvertising() {
+BLEAdvertising::BLEAdvertising()
+: m_scanRespData{}
+{
 	m_advData.set_scan_rsp        = false;
 	m_advData.include_name        = true;
 	m_advData.include_txpower     = true;
@@ -89,6 +91,10 @@ void BLEAdvertising::setAdvertisementType(esp_ble_adv_type_t adv_type){
 	m_advParams.adv_type = adv_type;
 } // setAdvertisementType
 
+void BLEAdvertising::setAdvertisementChannelMap(esp_ble_adv_channel_t channel_map) {
+	m_advParams.channel_map = channel_map;
+} // setAdvertisementChannelMap
+
 void BLEAdvertising::setMinInterval(uint16_t mininterval) {
 	m_advParams.adv_int_min = mininterval;
 } // setMinInterval
@@ -215,10 +221,15 @@ void BLEAdvertising::start() {
 	}
 
 	if (!m_customScanResponseData && m_scanResp) {
-		m_advData.set_scan_rsp = true;
-		m_advData.include_name = m_scanResp;
-		m_advData.include_txpower = m_scanResp;
-		errRc = ::esp_ble_gap_config_adv_data(&m_advData);
+		// Set the configuration for scan response.
+		memcpy(&m_scanRespData, &m_advData, sizeof(esp_ble_adv_data_t)); // Copy the content of m_advData.
+		m_scanRespData.set_scan_rsp = true; // Define this struct as scan response data
+		m_scanRespData.include_name = true; // Caution: This may lead to a crash if the device name has more than 29 characters
+		m_scanRespData.include_txpower = true;
+		m_scanRespData.appearance = 0; // If defined the 'Appearance' attribute is already included in the advertising data
+		m_scanRespData.flag = 0; // 'Flags' attribute should no be included in the scan response
+
+		errRc = ::esp_ble_gap_config_adv_data(&m_scanRespData);
 		if (errRc != ESP_OK) {
 			log_e("<< esp_ble_gap_config_adv_data (Scan response): rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
 			return;
@@ -518,4 +529,4 @@ void BLEAdvertising::handleGAPEvent(
 }
 
 
-#endif /* CONFIG_BT_ENABLED */
+#endif /* CONFIG_BLUEDROID_ENABLED */