13 lines
600 B
Plaintext
13 lines
600 B
Plaintext
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This driver uses a PWM output and a timer to implement an audio play channel.
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Whilst the default config settings will probably work for your hardware, you may need to change them.
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If so copy gaudio_play_config.h to your project directory and then alter it.
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The maximum sample frequency is governed primarily by the number of bits of resolution and the
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maximum PWM clock rate. The maximum sample frequency should be less than...
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Max PWM Clock / (2 ^ Bits per sample)
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eg. For the AT91SAM7 max PWM clock = 48MHz / 2
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For 10 bit PWM accuracy that means GAUDIO_PLAY_MAX_SAMPLE_FREQUENCY = 23,437 Hz
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