Fix ESP32-S2 restart

[joelsernamoreno]

Hello!

I have been using ESP32-S2 with the AsyncElegantOTA library and other libraries (for example esptinyusb).

I have identified that when updating the firmware with AsyncElegantOTA, ESP32-S2 goes into download mode on reboot (This only happens if I use other libraries, if I use the basic AsyncElegantOTA example this does not happen). Attached is an image:

ESP32-S2 does not reboot properly and does not run the new firmware. You have to physically disconnect and reconnect the ESP32S2 from the computer.

To fix this I have modified AsyncElegantOtaClass::restart in AsyncElegantOta.cpp to force ESP32-S2 to properly restart and run the new firmware after the restart. Maybe there is another cleaner solution, but my modification causes ESP32-S2 to be restarted without entering download mode:

Thanks!

[flowerysong]

Since the basic example works this seems likely to be a bug elsewhere in your code/the code you rely on, rather than something that this library should deal with.

If this workaround is actually necessary, you should structure the code so it's clear what is actually different between the branches:

Suggested change

	#if defined CONFIG_IDF_TARGET_ESP32S2 || defined CONFIG_IDF_TARGET_ESP32S2
	yield();
	delay(1000);
	yield();
	esp_task_wdt_init(1,true);
	esp_task_wdt_add(NULL);
	while(true);
	#else
	yield();
	delay(1000);
	yield();
	ESP.restart();
	#endif
	yield();
	delay(1000);
	yield();
	#if defined(CONFIG_IDF_TARGET_ESP32S2)
	// Normal restarts don't work due to X. Abuse the watchdog timer to perform a hard reset.
	esp_task_wdt_init(1, true);
	esp_task_wdt_add(NULL);
	while(true);
	#else
	ESP.restart();
	#endif