How to disable WWDT while debugging in LPC55

jimmyli — Fri, 02 Dec 2022 00:38:38 GMT

Hi,

When our customer selected LPC550x MCU to develop, they found the wwdt will reset the mcu while debugging and the SWD doesn't work.

Also, I find wwdt supporting debug mode, but can't find any way to disable wwdt while debugging.

Can you help to check it?

Thanks very much.

----below is a example to disable wwdt while debugging for ST mcu

Re: How to disable WWDT while debugging in LPC55

xiangjun_rong — Fri, 02 Dec 2022 03:05:36 GMT

Hi,

I suppose that you can disable WWDT when you develop/debug your application code with the code

SYSCON->AHBCLKCTRLX[0]|=1<<22;

WWDT->MOD&=~(0x01); //disable WWDT by clearing the WDEN bit in MOD reg

Hope it can help you

XiangJunRong