Posted on April 15, 2015 at 18:02Hi, I have several time strict TIMER ISR and I tested the execution time of one of them.The result is that 47 instructions(indluding 3 branch instructions) costs 3 us.My chip is stm32f103 and all code and data is...
Posted on April 16, 2015 at 03:46This is the disassembly code from my ISR posted previously and the branch instructions seemingly are 4 and not 3.@clive1
Posted on April 16, 2015 at 03:39 This is one of my ISR,and the current interrupt rate is 40KHz(4 channels will interrupt concurrently).I got the execution time by measuring the pulse width on PD15 and don't know why the pulse was a little wider whe...