8000 Example: ResetReason2 (#8105) · LBOUDHAR/arduino-esp32@2696a12 · GitHub
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Commit 2696a12

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mrengineer7777mrengineer7777
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Example: ResetReason2 (espressif#8105)
* Create ResetReason2.ino * Separate Reset Examples Moved examples to separate sub folders
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‎libraries/ESP32/examples/ResetReason/ResetReason.ino renamed to ‎libraries/ESP32/examples/ResetReason/ResetReason/ResetReason.ino

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‎libraries/ESP32/examples/ResetReason/ResetReason2/ResetReason2.ino

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//----------------------------------------------------------------------------------
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// ResetReason2.ino
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//
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// Prints last reset reason of ESP32
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// This uses the mechanism in IDF that persists crash reasons across a reset.
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// See https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/system/misc_system_api.html#software-reset
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//
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// This example uses esp_reset_reason() instead of rtc_get_reset_reason(0).
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// This example forces a WDT timeout in 10s.
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//
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// Note enableLoopWDT() cannot be used here because it also takes care of
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// resetting WDT. See cores/esp32/main.cpp::loopTask().
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//
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// Author: David McCurley
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// Public Domain License
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//----------------------------------------------------------------------------------
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// 2023.04.21 r1.0 Initial release
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//----------------------------------------------------------------------------------
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#include "esp_task_wdt.h"
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//Converts reason type to a C string.
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//Type is located in /tools/sdk/esp32/include/esp_system/include/esp_system.h
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const char * resetReasonName(esp_reset_reason_t r) {
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switch(r) {
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case ESP_RST_UNKNOWN: return "Unknown";
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case ESP_RST_POWERON: return "PowerOn"; //Power on or RST pin toggled
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case ESP_RST_EXT: return "ExtPin"; //External pin - not applicable for ESP32
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case ESP_RST_SW: return "Reboot"; //esp_restart()
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case ESP_RST_PANIC: return "Crash"; //Exception/panic
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case ESP_RST_INT_WDT: return "WDT_Int"; //Interrupt watchdog (software or hardware)
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case ESP_RST_TASK_WDT: return "WDT_Task"; //Task watchdog
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case ESP_RST_WDT: return "WDT_Other"; //Other watchdog
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case ESP_RST_DEEPSLEEP: return "Sleep"; //Reset after exiting deep sleep mode
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case ESP_RST_BROWNOUT: return "BrownOut"; //Brownout reset (software or hardware)
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case ESP_RST_SDIO: return "SDIO"; //Reset over SDIO
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default: return "";
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}
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}
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void PrintResetReason(void) {
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esp_reset_reason_t r = esp_reset_reason();
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if(r==ESP_RST_POWERON) {
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delay(6000); //Wait for serial monitor to connect
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}
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Serial.printf("\r\nReset reason %i - %s\r\n", r, resetReasonName(r));
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}
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void setup() {
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Serial.begin(115200);
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PrintResetReason();
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//Start WDT monitor
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if(esp_task_wdt_add(NULL) != ESP_OK) {
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log_e("Failed to add current task to WDT");
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}
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}
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//Enable esp_task_wdt_reset() below to prevent a WDT reset
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void loop() {
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Serial.printf("Alive %lums\r\n", millis());
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//esp_task_wdt_reset();
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delay(1000); //1s delay
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}

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