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#7
19-08-2009, 13:29
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Re: Sound!
I have done this before as a project on another microcontroller (an HCS12 to be exact). I hooked up a speaker and amplifier to a PWM output and modulated the PWM period to generate different tones (granted, the square PWM wave sounds a little strange, but with a simple RC filter you can get a roughly sinusoidal, single pitch sound).
I suspect that if you were to look at some of Kevin Watson's code on how to use PWM ports 13-16 with custom frequencies, you could probably do something very similar. |
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