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Forums > CSDb Discussions > RPM longterm plot results needed
2020-09-10 22:58
Groepaz

Registered: Dec 2001
Posts: 9539
RPM longterm plot results needed

As someone suggested in another thread, i have implemented a long term plotter for the rotation speed. This will allow to implement more accurate simulation of the drive "wobble" in VICE.

See the *plot.prg variants of the testprograms: https://sourceforge.net/p/vice-emu/code/HEAD/tree/testprogs/dri..

It would be cool if some people could run them on their setups and post the results (screenshots). (any of the 3 *plot programs is fine, the result should not be different)

Please tell exactly what kind of drive it is that you are using (i could only test on new and old 1541 myself, it may also work on 157x) :)

When you run the program, it will take a second or two to calibrate (so it can align the graph to the middle of the screen, more or less). Then you can increase the resolution (decrease the divisor) for the timer value using F7,F5,F3,F1. Use the smallest divisor (widest plot) that still fits on Y (the default is usually fine). Wait until it plottet a full frame. And dont forget to mention what the F-Key was that you pressed :)

Edit++: while you are at it - it might be a good time to calibrate the RPM of your drive to roughly 300RPM :)

Thanks!
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