TMS320C6678: 看门狗无法复位

maoyun,

It is always good to start with something which already works.

For example, please refer to the sample example code of Watchdog timer of processor SDK 6.3

PROCESSOR-SDK-RTOS-C667x  06_03_00_106
https://software-dl.ti.com/processor-sdk-rtos/esd/C667x/latest/index_FDS.html

After installation, you will find the sample located at 

:\ti\pdk_c667x_2_0_16\packages\ti\csl\example\wdtimer

Regards

Shankari G

hello

Thanks for prompt reply

Start the watchdog at the end of the initialization of the program. At present, the above phenomenon has not appear in the 3 days of the test, and  I will try the method you provide later