How to use 430f149 to detect the length of a pulse? How to implement the program?

fish001

How to use 430f149 to detect the length of a pulse? How to implement the program? [Copy link]

Now I want to detect a 2-second pulse, but I don't know how to implement it in the program. Please help me. 1. Turn on the system clock and the timer. Let's assume that TimerA is used. 2. Configure a capture mode, rising edge capture. 3. In the interrupt service program, if the rising edge arrives, record the reading, and change the rising edge to the falling edge trigger. 3. Determine whether the falling edge arrives and record the reading. 4. Subtract the two, and the reading is the pulse width.