The PTB5 is configured as the normal input pin (ALT1) in my project.
My project works normally when the PTB5 input pin’s value=1.
But the project cannot work normally when the PTB5 input pin’s value=0.
All the interrupts in my project cannot work only more--the timer interrupt, the SPI interrupt and so on.
I think it is caused by the “NMI_b” property in the PTB5.
Can you tell me how to solve the problem?