diff --git a/examples/bluetooth/nimble/power_save/README.md b/examples/bluetooth/nimble/power_save/README.md index 8b17ed7759..8b931fcf76 100644 --- a/examples/bluetooth/nimble/power_save/README.md +++ b/examples/bluetooth/nimble/power_save/README.md @@ -20,6 +20,7 @@ This example contains some build configurations. For each configuration, a few c - `sdkconfig.40m.esp32s3`: ESP32S3 uses main XTAL as low power clock in light sleep enabled. - `sdkconfig.defaults.esp32h2`: ESP32H2 uses 32kHz XTAL as low power clock in light sleep enabled. - `sdkconfig.32m.esp32h2`: ESP32H2 uses main XTAL as low power clock in light sleep enabled. +- `sdkconfig.defaults.esp32c2`: ESP32C2 uses main XTAL as low power clock in light sleep enabled. ## How to use example ### Hardware Required @@ -61,14 +62,21 @@ idf.py menuconfig - `[*] Enable BLE sleep` 5. Configure bluetooth low power clock: - `Component config > Bluetooth > Controller Options > BLE low power clock source` - - Use main XTAL as low power clock source during light sleep: - - `(X) Use main XTAL as RTC clock source` - Use RTC clock source as low power clock sourceduring light sleep: - `(X) Use system RTC slow clock source` 6. Power down flash during light sleep: - `Component config > Hardware Settings > Sleep Config` - `[*] Power down flash in light sleep when there is no SPIRAM` +#### For Chip ESP32-C2 + +4. Enable bluetooth modem sleep: + - `Component config > Bluetooth > Controller Options` + - `[*] Enable BLE sleep` +5. Power down flash during light sleep: + - `Component config > Hardware Settings > Sleep Config` + - `[*] Power down flash in light sleep when there is no SPIRAM` + ### Build and Flash ``` @@ -130,8 +138,10 @@ I (463) NimBLE: | ESP32S3 | 240 mA | 17.9 mA | 3.3 mA | 230 uA | | ESP32H2 | 82 mA | 16.0 mA | 4.0 mA | 24 uA | | ESP32C6 | 240 mA | 22 mA | 3.3 mA | 34 uA | +| ESP32C2 | 130 mA | 18.0 mA | 2.5 mA | X | X: This feature is currently not supported. ## Example Breakdown -- ESP32 does not support the use of main XTAL in light sleep mode, so an external 32kHz crystal is required. \ No newline at end of file +- ESP32 does not support the use of main XTAL in light sleep mode, so an external 32kHz crystal is required. +- ESP32C2 does not support the use of 32KHz XTAL in light sleep mode, the XTAL frequency is set to 26MHz in default. \ No newline at end of file diff --git a/examples/bluetooth/nimble/power_save/main/Kconfig.projbuild b/examples/bluetooth/nimble/power_save/main/Kconfig.projbuild index ff485c6fc1..b734208ba9 100644 --- a/examples/bluetooth/nimble/power_save/main/Kconfig.projbuild +++ b/examples/bluetooth/nimble/power_save/main/Kconfig.projbuild @@ -2,8 +2,9 @@ menu "Example Configuration" choice EXAMPLE_MAX_CPU_FREQ prompt "Maximum CPU frequency" - default EXAMPLE_MAX_CPU_FREQ_160 if !IDF_TARGET_ESP32H2 + default EXAMPLE_MAX_CPU_FREQ_160 if !IDF_TARGET_ESP32H2 && !IDF_TARGET_ESP32C2 default EXAMPLE_MAX_CPU_FREQ_96 if IDF_TARGET_ESP32H2 + default EXAMPLE_MAX_CPU_FREQ_120 if IDF_TARGET_ESP32C2 depends on PM_ENABLE help Maximum CPU frequency to use for dynamic frequency scaling. @@ -15,6 +16,9 @@ menu "Example Configuration" depends on IDF_TARGET_ESP32H2 config EXAMPLE_MAX_CPU_FREQ_160 bool "160 MHz" + config EXAMPLE_MAX_CPU_FREQ_120 + bool "120 MHz" + depends on IDF_TARGET_ESP32C2 config EXAMPLE_MAX_CPU_FREQ_240 bool "240 MHz" depends on IDF_TARGET_ESP32 || IDF_TARGET_ESP32S3 @@ -24,13 +28,15 @@ menu "Example Configuration" int default 80 if EXAMPLE_MAX_CPU_FREQ_80 default 96 if EXAMPLE_MAX_CPU_FREQ_96 + default 120 if EXAMPLE_MAX_CPU_FREQ_120 default 160 if EXAMPLE_MAX_CPU_FREQ_160 default 240 if EXAMPLE_MAX_CPU_FREQ_240 choice EXAMPLE_MIN_CPU_FREQ prompt "Minimum CPU frequency" - default EXAMPLE_MIN_CPU_FREQ_40M if !IDF_TARGET_ESP32H2 + default EXAMPLE_MIN_CPU_FREQ_40M if !IDF_TARGET_ESP32H2 && !IDF_TARGET_ESP32C2 default EXAMPLE_MIN_CPU_FREQ_32M if IDF_TARGET_ESP32H2 + default EXAMPLE_MIN_CPU_FREQ_26M if IDF_TARGET_ESP32C2 depends on PM_ENABLE help Minimum CPU frequency to use for dynamic frequency scaling. @@ -52,6 +58,10 @@ menu "Example Configuration" bool "32 MHz (use with 32MHz XTAL)" depends on IDF_TARGET_ESP32H2 depends on XTAL_FREQ_32 || XTAL_FREQ_AUTO + config EXAMPLE_MIN_CPU_FREQ_26M + bool "26 MHz (use with 26MHz XTAL)" + depends on IDF_TARGET_ESP32C2 + depends on XTAL_FREQ_26 || XTAL_FREQ_AUTO config EXAMPLE_MIN_CPU_FREQ_20M bool "20 MHz (use with 40MHz XTAL)" depends on XTAL_FREQ_40 || XTAL_FREQ_AUTO @@ -65,6 +75,7 @@ menu "Example Configuration" default 80 if EXAMPLE_MIN_CPU_FREQ_80M default 40 if EXAMPLE_MIN_CPU_FREQ_40M default 32 if EXAMPLE_MIN_CPU_FREQ_32M + default 26 if EXAMPLE_MIN_CPU_FREQ_26M default 20 if EXAMPLE_MIN_CPU_FREQ_20M default 10 if EXAMPLE_MIN_CPU_FREQ_10M diff --git a/examples/bluetooth/nimble/power_save/sdkconfig.defaults.esp32c2 b/examples/bluetooth/nimble/power_save/sdkconfig.defaults.esp32c2 new file mode 100644 index 0000000000..9f941613f7 --- /dev/null +++ b/examples/bluetooth/nimble/power_save/sdkconfig.defaults.esp32c2 @@ -0,0 +1,19 @@ +CONFIG_IDF_TARGET="esp32h2" + +# Bluetooth Low Power Config +CONFIG_BT_LE_SLEEP_ENABLE=y + +# +# Power Management +# +CONFIG_PM_ENABLE=y +CONFIG_PM_DFS_INIT_AUTO=y + +# XTAL Freq Config +CONFIG_XTAL_FREQ_26=y +CONFIG_XTAL_FREQ=26 + +# +# Sleep Config +# +CONFIG_ESP_SLEEP_POWER_DOWN_FLASH=y