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Hi, Art
you will find the whole "story" here:
http://www.picbasic.co.uk/forum/showthread.php?t=5687
and
http://www.picbasic.co.uk/forum/showthread.php?t=6205
in the end ... we used a 16F872/876 @ 4Mhz ... that allows a 245 Hz HPwm ... and you can use the TWO channels of the device, if needed .
an IRLZ 44 ( do not forget the flywheel diode !!! ) was used to drive power and a simple relay used for inverting polarity ...
May be MalcC will add here some "user infos" ...
Alain
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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