Merge branch 'feature/sam' into develop

platformio/boards/arduino.json

@@ -536,5 +536,29 @@
             "via_ssh": true,
             "wait_for_upload_port": true
         }
-    }
+    },
+    "due": {
+        "build": {
+            "core": "arduino",
+            "extra_flags": "-D__SAM3X8E__ -DARDUINO_SAM_DUE -DARDUINO_ARCH_SAM",
+            "f_cpu": "84000000L",
+            "mcu": "cortex-m3",
+            "pid": "0x003e",
+            "usb_product": "Arduino Due",
+            "variant": "arduino_due_x",
+            "vid": "0x2341",
+            "ldscript": "sam3x8e.ld"
+        },
+        "name": "Arduino Due (Programming Port)",
+        "platform": "sam",
+        "upload": {
+            "disable_flushing": true,
+            "maximum_ram_size": 524288,
+            "maximum_size": 28672,
+            "protocol": "sam-ba",
+            "speed": 57600,
+            "use_1200bps_touch": true,
+            "wait_for_upload_port": false
+        }
+    }    
 }

platformio/builder/scripts/frameworks/arduino.py

@@ -2,7 +2,7 @@
 # See LICENSE for details.
 
 """
-    Build script for Android Framework (based on Wiring).
+    Build script for Arduino Framework (based on Wiring).
 """
 
 from os.path import join
@@ -49,6 +49,33 @@ if "variant" in env.get("BOARD_OPTIONS", {}).get("build", {}):
         ]
     )
 
+if env.get("BOARD_OPTIONS", {}).get("platform", None) == "sam":
+    env.VariantDir(
+        join("$BUILD_DIR", "FrameworkCMSISInc"),
+        join("$PLATFORMFW_DIR", "system", "CMSIS", "CMSIS", "include")
+    )
+    env.VariantDir(
+        join("$BUILD_DIR", "FrameworkLibSamInc"),
+        join("$PLATFORMFW_DIR", "system", "libsam")
+    )
+    env.VariantDir(
+        join("$BUILD_DIR", "FrameworkDeviceInc"),
+        join("$PLATFORMFW_DIR", "system", "CMSIS", "Device", "ATMEL")
+    )
+    env.Append(
+        CPPPATH=[
+            join("$BUILD_DIR", "FrameworkCMSISInc"),
+            join("$BUILD_DIR", "FrameworkLibSamInc"),
+            join("$BUILD_DIR", "FrameworkDeviceInc")
+        ]
+    )
+    env.Append(
+        LINKFLAGS=[
+            "-T", join("$PIOHOME_DIR", "packages", "ldscripts",
+                       "${BOARD_OPTIONS['build']['ldscript']}")
+        ]
+    )
+
 #
 # Target: Build Core Library
 #

platformio/builder/scripts/sam.py

@@ -0,0 +1,137 @@
+# Copyright (C) Ivan Kravets <me@ikravets.com>
+# See LICENSE for details.
+
+"""
+    Builder for Atmel SAM series of microcontrollers
+"""
+
+from os.path import join
+
+from SCons.Script import (COMMAND_LINE_TARGETS, AlwaysBuild, Builder, Default,
+                          DefaultEnvironment)
+
+from platformio.util import get_serialports
+
+env = DefaultEnvironment()
+
+env.Replace(
+    AR="arm-none-eabi-ar",
+    AS="arm-none-eabi-gcc",
+    CC="arm-none-eabi-gcc",
+    CXX="arm-none-eabi-g++",
+    OBJCOPY="arm-none-eabi-objcopy",
+    RANLIB="arm-none-eabi-ranlib",
+
+    ARFLAGS=["rcs"],
+
+    ASFLAGS=[
+        "-c",
+        "-g",  # include debugging info (so errors include line numbers)
+        "-x", "assembler-with-cpp",
+        "-Wall",
+        "-mthumb",
+        "-mcpu=${BOARD_OPTIONS['build']['mcu']}"
+    ],
+
+    CCFLAGS=[
+        "-g",  # include debugging info (so errors include line numbers)
+        "-Os",  # optimize for size
+        "-Wall",  # show warnings
+        "-ffunction-sections",  # place each function in its own section
+        "-fdata-sections",
+        "-MMD",  # output dependency info
+        "-mcpu=${BOARD_OPTIONS['build']['mcu']}",
+        "-mthumb"
+    ],
+
+    CXXFLAGS=[
+        "-fno-rtti",
+        "-fno-exceptions"
+    ],
+
+    CPPDEFINES=[
+        "F_CPU=$BOARD_F_CPU"
+    ],
+
+    LINKFLAGS=[
+        "-Os",
+        "-Wl,--gc-sections",
+        "-mcpu=${BOARD_OPTIONS['build']['mcu']}",
+        "-mthumb"
+    ],
+
+    UPLOADER=join("$PIOPACKAGES_DIR", "$PIOPACKAGE_UPLOADER", "bossac"),
+    UPLOADERFLAGS=[
+        "--info",
+        "--debug",
+        "--port", "$UPLOAD_PORT",
+        "--erase",
+        "--write",
+        "--verify",
+        "--boot"
+    ],
+    UPLOADBINCMD='"$UPLOADER" $UPLOADERFLAGS $SOURCES'
+)
+
+env.Append(
+    BUILDERS=dict(
+        ElfToBin=Builder(
+            action=" ".join([
+                "$OBJCOPY",
+                "-O",
+                "binary",
+                "$SOURCES",
+                "$TARGET"]),
+            suffix=".bin"
+        )
+    )
+)
+
+CORELIBS = env.ProcessGeneral()
+
+#
+# Target: Build executable and linkable firmware
+#
+
+target_elf = env.BuildFirmware(CORELIBS + ["m", "gcc"])
+
+#
+# Target: Build the .bin file
+#
+
+if "uploadlazy" in COMMAND_LINE_TARGETS:
+    target_bin = join("$BUILD_DIR", "firmware.bin")
+else:
+    target_bin = env.ElfToBin(join("$BUILD_DIR", "firmware"), target_elf)
+
+#
+# Target: Upload by default .bin file
+#
+
+upload = env.Alias(["upload", "uploadlazy"], target_bin, ("$UPLOADBINCMD"))
+AlwaysBuild(upload)
+
+#
+# Check for $UPLOAD_PORT variable
+#
+
+is_uptarget = (set(["upload", "uploadlazy"]) & set(COMMAND_LINE_TARGETS))
+
+if is_uptarget:
+    # try autodetect upload port
+    if "UPLOAD_PORT" not in env:
+        for item in get_serialports():
+            if "VID:PID" in item['hwid']:
+                print "Auto-detected UPLOAD_PORT: %s" % item['port']
+                env.Replace(UPLOAD_PORT=item['port'])
+                break
+
+    if "UPLOAD_PORT" not in env:
+        print("WARNING!!! Please specify environment 'upload_port' or use "
+              "global --upload-port option.\n")
+
+#
+# Setup default targets
+#
+
+Default(target_bin)

platformio/platforms/sam.py

@@ -0,0 +1,34 @@
+# Copyright (C) Ivan Kravets <me@ikravets.com>
+# See LICENSE for details.
+
+from platformio.platforms.base import BasePlatform
+
+
+class SamPlatform(BasePlatform):
+
+    """
+        An embedded platform for Atmel SAM microcontrollers
+        (with Arduino Framework)
+    """
+
+    PACKAGES = {
+
+        "toolchain-gccarmnoneeabi": {
+            "alias": "toolchain",
+            "default": True
+        },
+
+        "ldscripts": {
+            "default": True
+        },
+
+        "framework-arduinosam": {
+            "alias": "framework",
+            "default": True
+        },
+
+        "tool-bossac": {
+            "alias": "uploader",
+            "default": True
+        }
+    }