I need to change one register often and another occasionally,either way I need to calculate values for both, but is it faster on average to set both regardless if there's a need for change in the one occasionally changed, or to check the register and only rewrite if necessary?
I guess it doesn't have to be the fastest, either result will appear realtime, I guess the only way to know for sure it to test it, unfortunetly I only own a old oscilloscope so I can't time the actual response time,is there a way to test it with the arduino itself? Or would the difference be so smal id have to use another piece of equiptment
or to check the register and only rewrite if necessary?
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