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I have written code for sensing input and then output port to respond. I want to add delay between the two actions. Can any one help me out.
But if the register is reset, then it can't be used by other parts of the code that might need to measure time. It's quite common to busy-loop short delays, but using a free-running timer and potentially a timer interrupt to keep track of longer delays or for measuring the time between two events.
Isn't it much better to rewrite the code so it doesn't matter if DWT_CYCCNT overflows during the delay?