In SX Microcontrollers, SX/B Compiler and SX-Key Tool, TheBandit wrote:

Thanks for the additional feedback. I am using the SX interrupt to monitor an incremental encoder and the 50mHz speed has prevented miscounts that I was having problems with at lower frequencies. For another part of my program I needed to be able to measure time, so I thought I'd also use the interupt to run a timer. I currently have it incrementing a counter variable on each interupt which I roll back to zero after 48827 counts or approximately 0.25sec. On each roll back, I increment another counter variable which essentially measures time in quarter seconds. It seems to work very well and has matched my stopwatch up to 15minutes.

I would also like to reduce the power consumption, but I can't risk a miscount on the encoder for this application so dropping the frequency may not be an option.

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