I wanted to know what is the interrupt latency time for BF532?
What is the time taken for BF532 when it is returning from interrupt handler.
what is the time taken for BF532 when its performing PUSH and POP
so you are interested in what time does the context switch consume rather than what is the latency for detecting an interrupt and entering an service routine.
A push/pop operation is a memory store/load operation on L1 memory, one core clock cycle each.
The c compiler is doing full context switch and this is explained in the C compiler manual.
In assembly, you can reduce it to exactly the resources you are using in the ISR.
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