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ESP32C3:bluetooth support use main XTAL in light sleep mode

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xiongweichao
2021-10-13 15:13:21 +08:00
parent 6e98440ab1
commit d85d927bb0
2 changed files with 54 additions and 17 deletions
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19
components/bt/controller/esp32c3/Kconfig.in
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@@ -351,9 +351,9 @@ menu "MODEM SLEEP Options"
bool "Main crystal"
help
Main crystal can be used as low power clock for bluetooth modem sleep. If this option is
selected, bluetooth modem sleep can work under Dynamic Frequency Scaling(DFS) enabled, but
cannot work when light sleep is enabled. Main crystal has a relatively better performance than
other bluetooth low power clock sources.
selected, bluetooth modem sleep can work under Dynamic Frequency Scaling(DFS) enabled, and
bluetooth can work under light sleep enabled. Main crystal has a relatively better performance
than other bluetooth low power clock sources.
config BT_CTRL_LPCLK_SEL_EXT_32K_XTAL
bool "External 32kHz crystal"
depends on RTC_CLK_SRC_EXT_CRYS
@@ -368,9 +368,18 @@ menu "MODEM SLEEP Options"
help
Internal 150kHz RC oscillator. The accuracy of this clock is a lot larger than 500ppm which is required
in Bluetooth communication, so don't select this option in scenarios such as BLE connection state.
endchoice
config BT_CTRL_MAIN_XTAL_PU_DURING_LIGHT_SLEEP
bool "power up main XTAL during light sleep"
depends on (BT_CTRL_LPCLK_SEL_MAIN_XTAL || BT_CTRL_LPCLK_SEL_EXT_32K_XTAL) && FREERTOS_USE_TICKLESS_IDLE
default n
help
If this option is selected, the main crystal will power up during light sleep when the low power clock
selects an external 32kHz crystal but the external 32kHz crystal does not exist or the low power clock
selects the main crystal.
endmenu
config BT_CTRL_SLEEP_MODE_EFF