Thread: PIC Assembly Followup
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Unread 29-05-2007, 20:12
Mike Bortfeldt Mike Bortfeldt is offline
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Re: PIC Assembly Followup
Kit,

Looks great! Glad I could help. While I haven't been able to find your reference to the 15-20% oscillator accuracy (I'm sure it's in the manual somewhere), you'll probably find that the accuracy is much better than that. I would expect 15-20% to be the absolute maximum. Also, if you have the testing equipment necessary to measure the actual frequency, you can adjust the internal frequency using the OSCTUNE register. A more crude measurement would be set up a timer to blink an led and count the number of times it turns on/off over a set interval (for example, a 1 second blink rate over a 100 second period would give you a good idea if your oscillator is way off - or in your case, a 1 second timer with the number of blinks outputted to your LEDs!)

Let me know how it works out.

Mike