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Pic18f452
I've introduced the changes you suggested.
I'm VERY pleased to find that frequency is no longer a function of the interrupt routine duration!
Frequency output is still unstable and is constantly fluctuating end to end about 150 Hz when I set TMR1 to 65200 (7.3 KHz range). How can I improve frequency stability?
Thanks a lot.
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Use an assembler ISR or use 'Instant interrupts' by Mr Darrel Taylor. REALLY NICE STUFF!
http://www.pbpgroup.com/modules/wfse...p?articleid=19
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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