Cooper Dalrymple
e133147192
* Initial bi-directional I2S support. * Formatting update on pioasm file. * Added loopback example. * Updated documentation. * Fix `getOverUnderflow` naming. * Revert `getOverUnderflow` naming changes. * Remove python cache file. * Remove `availableForRead`. * Updated naming convention of OverUnderflow methods. * Update constructor to prevent conflicts with existing code. * Avoid ambiguous `setDATA` in bi-directional mode. * Use only input buffer manager in `available`. * Fix input checks in `read` and `peek`. * Fix erroneous comment. * Update pio_i2s.pio to pio v1. * Change pio_i2s.pio back to pio v0.
37 lines
759 B
Arduino
37 lines
759 B
Arduino
/*
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I2S bi-directional input and output loopback example
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Released to the Public Domain by Cooper Dalrymple
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*/
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#include <I2S.h>
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I2S i2s(INPUT_PULLUP);
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void setup() {
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Serial.begin(115200);
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i2s.setDOUT(0);
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i2s.setDIN(1);
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i2s.setBCLK(2); // Note: LRCLK = BCLK + 1
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i2s.setBitsPerSample(16);
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i2s.setFrequency(22050);
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// NOTE: The following values are known to work with the Adafruit microphone:
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// i2s.setBitsPerSample(32);
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// i2s.setFrequency(16000);
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i2s.begin();
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while (1) {
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int16_t l, r;
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i2s.read16(&l, &r);
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i2s.write16(l, r);
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// NOTE: Adafruit microphone word size needs to match the BPS above.
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// int32_t l, r;
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// i2s.read32(&l, &r);
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// i2s.write32(l, r);
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}
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}
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void loop() {
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/* Nothing here */
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}
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