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Software serial emulation interfering with audio #40

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masterX244 opened this issue Dec 14, 2015 · 1 comment

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masterX244 commented Dec 14, 2015

When using software serial mode sending audio is converted to random noise
Is there a mode avoiding the usage of the hardware PCM module?

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joan2937 commented Dec 14, 2015

I'm afraid not.

pigpio is always sampling the GPIO. The sampling is timed with either the PWM or PCM peripherals.

Waves (which implement transmitted bit bang serial data) are timed with the PWM or PCM peripheral not being used for sampling the GPIO.

In effect you lose both the PWM and PCM audio capabilities once you use pigpio waves.

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