Hi Jeff, thanks for your help. I double the size of the stack, now is 256(default was 128). It seems okay in the beginning, but after I execute few actions then it happens again. I think this is not the root cause. In fact, I didn’t implement so many features in the task. Another strange point is, I move the task function inside of freertos.c everything goes fine. But if I move the task function to the other c file, then it crashed. OMG!!
By the way, I didn’t see any warning message during the code generate.