I have made some work on a micro controller based stepper generator and steps 
are now generated.

To keep stepper generator in sync with linuxcnc there is a need to calculate 
average phase and period of the message arrival times. I expect the same 
algorithm is rather useful to have then working with linuxcnc for other 
purposes and I will send the source code once implemented if somebody else is 
interested in it.

Is is rather straightforward to calculate from for example the last 100 arrival 
times but a moving average algorithm would be preferred to reduce CPU load. Do 
anybody have any ideas?


Regards Nicklas Karlsson

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