How to feed watch dog?

[baoshi]

I'm using RTOS SDK and I have some operations (filling a LCD frame buffer) that takes a while. It causes watch dog reset.
I would like to know:

1. How long exact is watch dog timeout?
2. How to feed watch dog?

Thanks

Baoshi

[ESP_Faye]

Hi,

Thanks for your interest in ESP8266 !

1. watch dog timeout is about 1 second
2. sorry that we don't have any API to feed the dog，so please call vTaskDelay in your while 1

[kolban]

In a sample I wrote, I coded a vTaskDelay in my loop but unfortunately, the WDT still fires ... see the following post:

viewtopic.php?f=7&t=1360

[EliteScientist]

Is there any updates for this? Also I'm getting a WDT Reset when sending data using espconn_send under RTOS 1.3.0

The first connection is fine. the second connection never actually sends the data then results in a WDT reset.

[ESP_Faye]

Hi EliteScientist,

Could you provide your test code for debugging ?

Thanks for your interest in ESP8266 !

[EliteScientist]

It was my error. I ended up changing my routine to write data -> if busy then queue data-> when data sent free data and process next item in queue. This fixed my issues of the WDT in espconn_send.

I still have several outstanding issues with espconn. I probably should start a new thread. I'm seeing occasional fatal exceptions which appear to be caused by a pvPortRealloc call after calling espconn_send, after a connection closes I'm not getting a callback, after calling espconn_igmp_join, I am not getting a callback for the multicast packets.

I think I'll try to isolate these issues in separate projects and send them to you guys. That will help differentiate between errors that may be in my code and errors that may be caused by the SDK.