I've been playing with using an audio amplifier with a tone generator to
make a low power VFD, and have been wondering what it would take to build a
HAL module to produce simple audio waveforms. After I got to thinking, it
seems that audio hardware could probably do a higher frequency PWM than the
parport can, too. I'm just not sure how fast of a response could be had,
although playing music and the like is constant changes in the output...
even if it was a little slow, it seems like it could work for something like
spindle in pwm or if it was just driving tones to an amplifier to run the
motors directly...
So does anyone have any thoughts on this? I'd love to hear 'em.
Jim Coleman
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