alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

driver(Ledc): fix the bug that ledc low-sleep channel can not work when chip in light-sleep mode

Browse Source 
`esp_light_sleep_start` will disable the RTC8M_CLK, which will cause the LEDC low-speed channel to not work in light-sleep mode
This commit is contained in:
houwenxiang 2020-04-17 22:20:10 +08:00
parent b52ed2d2a5
commit 73384adfbe
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
components/soc/src/esp32/rtc_sleep.c
View File

@ -201,6 +201,11 @@ void rtc_sleep_init(rtc_sleep_config_t cfg)
} else {
REG_CLR_BIT(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_CK8M_FORCE_PU);
}
//Keep the RTC8M_CLK on in light_sleep mode if the ledc low-speed channel is clocked by RTC8M_CLK.
if (!cfg.deep_slp && GET_PERI_REG_MASK(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_DIG_CLK8M_EN_M)) {
REG_CLR_BIT(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_CK8M_FORCE_PD);
REG_SET_BIT(RTC_CNTL_CLK_CONF_REG, RTC_CNTL_CK8M_FORCE_PU);
}
/* enable VDDSDIO control by state machine */
REG_CLR_BIT(RTC_CNTL_SDIO_CONF_REG, RTC_CNTL_SDIO_FORCE);