ESP32 Forum

phatpaul wrote: ↑

Tue Mar 05, 2019 3:51 pm

esp_restart() is not working for me all of a sudden. The call doesn't seem to have any effect.

It seems the only relevant thing I changed recently was upgrade from ESP-IDF 3.1.1 to 3.1.3.

Anyone else experience this? How should I begin to troubleshoot?

phatpaul wrote: ↑

Tue Mar 05, 2019 4:43 pm

Code: Select all

/**
  * @brief  Restart PRO and APP CPUs.
  *
  * This function can be called both from PRO and APP CPUs.
  * After successful restart, CPU reset reason will be SW_CPU_RESET.
  * Peripherals (except for WiFi, BT, UART0, SPI1, and legacy timers) are not reset.
  * This function does not return.
  */
void esp_restart(void) __attribute__ ((noreturn));

There is no return from that function!

phatpaul wrote: ↑

Tue Mar 05, 2019 4:50 pm

FYI some maybe relavent info.
I added a printf after the esp_restart() call, and it does NOT execute. (I do not see "Should not get here!...\n" on the console.)

But other parts of my application are still running - BLE, WiFi, and probalby other tasks are still running...

Here's the reset code:

Code: Select all

static void resetBtnTimerCb(void *arg) {
...
printf("Restarting system...\n");
esp_restart();
printf("Should not get here!...\n");

And that resetBtnTimerCb is called by a esp_timer:

Code: Select all

	/* Create a periodic timer which will run every 0.1s */
	const esp_timer_create_args_t periodic_timer_args = {
			.callback = &resetBtnTimerCb,
			/* name is optional, but may help identify the timer when debugging */
			.name = "periodic"
	};
	esp_timer_handle_t periodic_timer;
	ESP_ERROR_CHECK(esp_timer_create(&periodic_timer_args, &periodic_timer));
	/* The timer has been created but is not running yet */

	/* Start the timers */
	ESP_ERROR_CHECK(esp_timer_start_periodic(periodic_timer, RST_BTN_SAMPLE_MS*1000));
	ESP_LOGI(TAG, "Started resetBtn timer, time since boot: %lld us", esp_timer_get_time());

phatpaul wrote: ↑

Tue Mar 05, 2019 4:56 pm

I'm on release/v3.1 branch.
Most recent commit that I pulled was 57118e2f10a79af0627ed56d42d24584cd4033d8
(It is several commits after the 3.1.3 tag.)