ESP32 Forum

Posted: **Mon Apr 15, 2019 10:25 pm**

Hi,

I have an application with a esp_wake_deep_sleep in a file called rtc_wake_stub.c. this is the sugnature of the stub: 'void esp_wake_deep_sleep(void);'

It seems like while I can enter and wake up from deep sleep correctly, I cannot seem to get the stub to run. I have a while loop which just blinks the LED to test, and this is not run. MY stub does start by calling 'esp_default_wake_deep_sleep();' asap.
Also, calls to ets_printf do not cause anything to be printed to console.

I am entering deep sleep like this:

Code: Select all

void Power_DeepSleep(const enum SLEEP_LEVEL sleep_level)
{
  // Power down radios
  esp_bluedroid_disable();
  esp_bt_controller_disable();
  esp_wifi_stop();
  
  // Sleep the board
  ToggleVescPower(false);
  ToggleSleepBoard(true);
  ToggleCanEnable(false);
  
  // We always want to wakeup for the button (falling edge)
  rtc_gpio_pullup_en(POWER_BUTTON_GPIO);
  esp_sleep_enable_ext0_wakeup(POWER_BUTTON_GPIO, 0);
  
  if (sleep_level == SLEEP_LEVEL_LIGHT)
  {
    // For light sleep, we need to wake up for...
    // USB DCP
    //esp_sleep_enable_ext1_wakeup(DCP_UFP_GPIO, ESP_EXT1_WAKEUP_ALL_LOW);
    
    // Timer
    esp_sleep_enable_timer_wakeup(DEEP_SLEEP_TIME);
  }
  
  // If there is not a USB DCP device plugged in, or we are deep sleeping, turn off the buck
  if (!DcpUfpIsConnected() || (sleep_level == SLEEP_LEVEL_DEEP))
  {
    printf("Buck disable for sleep\r\n");
    ToggleBuck(false);
  }
  
  // Keep power GPIO state held
  rtc_gpio_hold_en(BUCK_EN_GPIO);
  rtc_gpio_hold_en(VESC_POWER_EN_GPIO);
  rtc_gpio_hold_en(SLEEP_GPIO);
  rtc_gpio_hold_en(CAN_EN_GPIO);
  
  // Enter deep sleep, we don't return from this
  esp_deep_sleep_start();
}

What else do I need to do to get this stub to run? Surely I've messed up somewhere, but I can't find anything in the docs that I've missed to make this work

ESP32 Forum

esp_wake_deep_sleep not running?

esp_wake_deep_sleep not running?