关于ESP32 任务看门狗复位问题

[hhh5215]

想要用看门狗实现程序跑飞复位的功能，看了一下以前的帖子，说任务看门狗默认不会复位，需要勾上Invoke panic handler on Task Watchdog timeout
这个选项，我勾上了。尝试循环喂狗10次后不喂狗，看到的现象和我想象中的复位不太一样？
一直在反复打印这些信息：
E (23247) task_wdt: Task watchdog got triggered. The following tasks did not reset the watchdog in time:
E (23247) task_wdt: - reset task (CPU 0/1)
E (23247) task_wdt: Tasks currently running:
E (23247) task_wdt: CPU 0: IDLE0
E (23247) task_wdt: CPU 1: IDLE1
E (23247) task_wdt: Print CPU 0 (current core) backtrace


Backtrace:0x400D4644:0x3FFBE370 0x4008290D:0x3FFBE390 0x4019B87B:0x3FFBBD00 0x400D491E:0x3FFBBD20 0x400902FD:0x3FFBBD40 0x4008F965:0x3FFBBD60
0x400d4644: task_wdt_isr at C:/Users/15459/esp-idf/components/esp_common/src/task_wdt.c:187

0x4008290d: _xt_lowint1 at C:/Users/15459/esp-idf/components/freertos/xtensa/xtensa_vectors.S:1105

0x4019b87b: esp_pm_impl_waiti at C:/Users/15459/esp-idf/components/esp32/pm_esp32.c:501

0x400d491e: esp_vApplicationIdleHook at C:/Users/15459/esp-idf/components/esp_common/src/freertos_hooks.c:63

0x400902fd: prvIdleTask at C:/Users/15459/esp-idf/components/freertos/tasks.c:3386 (discriminator 1)

0x4008f965: vPortTaskWrapper at C:/Users/15459/esp-idf/components/freertos/xtensa/port.c:143


E (23247) task_wdt: Print CPU 1 backtrace


Backtrace:0x40081BE7:0x3FFBE970 0x4008290D:0x3FFBE990 0x4019B87B:0x3FFBC460 0x400D491E:0x3FFBC480 0x400902FD:0x3FFBC4A0 0x4008F965:0x3FFBC4C0
0x40081be7: esp_crosscore_isr at C:/Users/15459/esp-idf/components/esp32/crosscore_int.c:80

0x4008290d: _xt_lowint1 at C:/Users/15459/esp-idf/components/freertos/xtensa/xtensa_vectors.S:1105

0x4019b87b: esp_pm_impl_waiti at C:/Users/15459/esp-idf/components/esp32/pm_esp32.c:501

0x400d491e: esp_vApplicationIdleHook at C:/Users/15459/esp-idf/components/esp_common/src/freertos_hooks.c:63

0x400902fd: prvIdleTask at C:/Users/15459/esp-idf/components/freertos/tasks.c:3386 (discriminator 1)

0x4008f965: vPortTaskWrapper at C:/Users/15459/esp-idf/components/freertos/xtensa/port.c:143

[ripper]

遇到了跟楼主一模一样的问题
不知道是否有乐鑫官方来解答一下
我的是ESP32-PICO-MINI-02, ESP-IDF版本v4.2.2

[ripper]

我已经找到问题所在了，
仅仅在配置里面使能Invoke panic handler on Task Watchdog timeout是不够的，还需要在程序里：

Code: [Select all] [Expand/Collapse]

1. if(esp_task_wdt_init(WDT_TIMEOUT_S, true) != ESP_OK)
2. {
3.     printf("Task WDG init Error\r\n");
4. }

GeSHi © Codebox Plus Extension

初始化init的第二个参数是panic，要是true，在任务看门狗超时后才会复位芯片。