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Some fixes for LyraT and also better inits/docs

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TroyHacks 2023-04-21 13:58:41 -04:00 committed by Will Tatam
parent b88d8c85cb
commit 2bc8ffefce
1 changed files with 21 additions and 18 deletions
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39
usermods/audioreactive/audio_source.h
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@ -493,27 +493,30 @@ class ES8388Source : public I2SSource {
void _es8388InitAdc() {
// https://dl.radxa.com/rock2/docs/hw/ds/ES8388%20user%20Guide.pdf Section 10.1
// http://www.everest-semi.com/pdf/ES8388%20DS.pdf Better spec sheet, more clear. Registries are decimal, settings are binary.
// https://docs.google.com/spreadsheets/d/1CN3MvhkcPVESuxKyx1xRYqfUit5hOdsG45St9BCUm-g/edit#gid=0 generally
// Sets ADC to around what AudioReactive expects, and loops line-in to line-out/headphone for monitoring.
_es8388I2cBegin();
_es8388I2cWrite(0x08,0x00); // I2S to slave
_es8388I2cWrite(0x02,0xf3); // Power down DEM and STM
_es8388I2cWrite(0x2b,0x80); // Set same LRCK
_es8388I2cWrite(0x00,0x05); // Set chip to Play & Record Mode
_es8388I2cWrite(0x0d,0x02); // Set MCLK/LRCK ratio to 256
_es8388I2cWrite(0x01,0x40); // Power up analog and lbias
_es8388I2cWrite(0x03,0x00); // Power up ADC, Analog Input, and Mic Bias
_es8388I2cWrite(0x0a,0x50); // Use Lin2/Rin2 for ADC input ("line-in")
_es8388I2cWrite(0x09,0x00); // Select Analog Input PGA Gain for ADC to 0dB (L+R)
_es8388I2cWrite(0x10,0b01000000); // Set ADC digital volume attenuation to -32dB (left)
_es8388I2cWrite(0x11,0b01000000); // Set ADC digital volume attenuation to -32dB (right)
_es8388I2cWrite(0x04,0x0c); // Turn on LOUT2 and ROUT2 power
_es8388I2cWrite(0x02,0b01000000); // Power up DEM and STM and undocumented bit for "turn on line-out amp"
_es8388I2cWrite(0x26,0x09); // Mixer - route LIN2/RIN2 to output
_es8388I2cWrite(0x27,0b01010000); // Mixer - route LIN to left mixer, 0dB gain
_es8388I2cWrite(0x2a,0b01010000); // Mixer - route RIN to right mixer, 0dB gain
_es8388I2cWrite(0x30,0b00011110); // LOUT2VOL - 0 = -45dB, 0b00011110 = +0dB
_es8388I2cWrite(0x31,0b00011110); // ROUT2VOL - 0 = -45dB, 0b00011110 = +0dB
_es8388I2cWrite( 8,0b00000000); // I2S to slave
_es8388I2cWrite( 2,0b11110011); // Power down DEM and STM
_es8388I2cWrite(43,0b10000000); // Set same LRCK
_es8388I2cWrite( 0,0b00000101); // Set chip to Play & Record Mode
_es8388I2cWrite(13,0b00000010); // Set MCLK/LRCK ratio to 256
_es8388I2cWrite( 1,0b01000000); // Power up analog and lbias
_es8388I2cWrite( 3,0b00000000); // Power up ADC, Analog Input, and Mic Bias
_es8388I2cWrite(10,0b01010000); // Use Lin2/Rin2 for ADC input ("line-in")
_es8388I2cWrite( 9,0b00000000); // Select Analog Input PGA Gain for ADC to 0dB (L+R)
_es8388I2cWrite(16,0b01000000); // Set ADC digital volume attenuation to -32dB (left)
_es8388I2cWrite(17,0b01000000); // Set ADC digital volume attenuation to -32dB (right)
_es8388I2cWrite( 4,0b00111100); // Turn on LOUT1 and ROUT1 and LOUT2 and ROUT2 power
_es8388I2cWrite( 2,0b01000000); // Power up DEM and STM and undocumented bit for "turn on line-out amp"
_es8388I2cWrite(38,0b00001001); // Mixer - route LIN2/RIN2 to output
_es8388I2cWrite(39,0b10010000); // Mixer - route LIN to mixL, 0dB gain was 01..
_es8388I2cWrite(42,0b10010000); // Mixer - route RIN to mixR, 0dB gain was 01..
_es8388I2cWrite(46,0b00011110); // LOUT1VOL - 0 = -45dB, 0b00011110 = +0dB
_es8388I2cWrite(47,0b00011110); // ROUT1VOL - 0 = -45dB, 0b00011110 = +0dB
_es8388I2cWrite(48,0b00011110); // LOUT2VOL - 0 = -45dB, 0b00011110 = +0dB
_es8388I2cWrite(49,0b00011110); // ROUT2VOL - 0 = -45dB, 0b00011110 = +0dB
}
public: