On Wednesday 07 January 2004 21:30, I wrote:
> That still limits me to a square wave though.
> It would be nice to have some time for some d/a conversion that would lead
> to a lower THD. (less parts, more complex software = cheaper and more fun
> for a hobbyist)

hmm.
A little calculation shows that I have this time.
I need an interrupt every 355 cycles (@5 mhz), one bit every interrupt, 32
bits/period:
5MHz/(335*32)=440.14 Hz (=0.03% high)
355 cycles to calculate what bit should be given to the integrator should be
enough :)

hmm again.
A pic running at 20 MHz xtal driving a 40 bpm led string is a division by
30000000... (after all it started with a metronome)
well...
thats gonna eat some registers...

Greets

Koen

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