Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-10-01 02:30:52 +03:00
Code Issues Packages Projects Releases Wiki Activity

fix(esp_hw_support): restore brownout after deep sleep rejection on ESP32-S2

Browse Source 
ESP32-S2 disables the brownout detector before deep sleep; if sleep is
rejected, re-init it so BOD is not left disabled (PM-519).

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
wuzhenghui
2026-09-14 11:38:41 +08:00
co-authored by Cursor
parent 16cd970a43
commit c8343913ec
1 changed files with 8 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/esp_hw_support/sleep_modes.c
+8 -3
View File
@@ -1180,12 +1180,11 @@ static esp_err_t FORCE_IRAM_ATTR deep_sleep_start(bool allow_sleep_rejection)
}
}
#endif
#if CONFIG_IDF_TARGET_ESP32S2
#if CONFIG_IDF_TARGET_ESP32S2 && CONFIG_ESP_BROWNOUT_DET
/* Due to hardware limitations, on S2 the brownout detector sometimes trigger during deep sleep
to circumvent this we disable the brownout detector before sleeping */
esp_brownout_disable();
#endif //CONFIG_IDF_TARGET_ESP32S2
#endif //CONFIG_IDF_TARGET_ESP32S2 && CONFIG_ESP_BROWNOUT_DET
esp_sync_timekeeping_timers();
@@ -1286,6 +1285,12 @@ static esp_err_t FORCE_IRAM_ATTR deep_sleep_start(bool allow_sleep_rejection)
esp_int_wdt_livelock_workaround(true);
#endif
esp_os_exit_critical(&s_config.lock);
#if CONFIG_IDF_TARGET_ESP32S2 && CONFIG_ESP_BROWNOUT_DET
/* Brownout was disabled before attempting deep sleep; restore it after rejection. */
esp_brownout_init();
#endif //CONFIG_IDF_TARGET_ESP32S2 && CONFIG_ESP_BROWNOUT_DET
return err;
}