Tool/software:
Hello, Ti experts.
I discovered a problem while testing the NMI trigger function of the TMS320F280039C-Q1 chip. As shown in Figure 1, I've added the test_count2 and test_count variables to the NMI_ISR interrupt service function. test_count2 is used to obtain the NMI trigger source. test_count is used to indicate that the NMI interrupt is entered.
In Figure 2, I put these two variables into the message 0x123 and send out the values of these two variables. test_count is in the eighth byte of the message and test_count2 is in the seventh byte of the message.
Figure 3 is the packet data I collected. It can be seen from the data that no trigger source was read after entering the NMI interrupt. May I ask what factors trigger the NMI in this case? thank you!!!
