[solved] how feed watchdog CPU_0

[rudi ;-)]

hi guys

not sure - have not read yet ( not searched in detail ) -
have someone knowledge how we can feed watchdog for CPU 0 ?

can we clear / read / set this register ?

Code: Select all

Task watchdog got triggered. The following tasks did not feed the watchdog in time:<\r><\n>
 - IDLE (CPU 0)<\r><\n>
Tasks currently running:<\r><\n>
CPU 0: main<\r><\n>
CPU 1: IDLE<\r><\n>
Task watchdog got triggered. The following tasks did not feed the watchdog in time:<\r><\n>
 - IDLE (CPU 0)<\r><\n>
Tasks currently running:<\r><\n>
CPU 0: main<\r><\n>
CPU 1: IDLE<\r><\n>

thanks

best wishes
rudi

CPU_0_watchdog_feed.png (16.01 KiB) Viewed 27432 times

[WiFive]

https://github.com/espressif/esp-idf/bl ... i/wdts.rst

[lberezy]

Looks like there's an esp_task_wdt_feed() function in ESP-IDF that looks like it will feed FreeRTOS's watchdog implementation.
Implementation is here, see the related header for maybe more information:
https://github.com/espressif/esp-idf/bl ... _wdt.c#L94

Have not tested this, however.

[ESP_Sprite]

That would work if you want the watchdog also to watch the tread calling the feed function. To get rid of this specific message, it's enough to write a task that does not take 100% cpu time (e.g. by yielding to FreeRTOS by doing a vTaskDelay every now and then.)

[beg_dk]

Hi

Can anyone tell me what the purpose of feeding the watchdog is?

Thanks

[WiFive]

Did you read http://esp-idf.readthedocs.io/en/latest ... /wdts.html