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64 lines
2.3 KiB
64 lines
2.3 KiB
/*
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* Tympan_TLV320AIC.ino
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*
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* Created: BPF and WEA, Creare LLC, Jan/Feb 2017
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* Purpose: Demonstrate basic audio pass-thru using the Tympan Audio Board,
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* which is based on the TI TLV320AIC3206
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*
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* License: MIT License, Use At Your Own Risk
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*
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*/
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#include <Audio.h>
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//include <Wire.h>
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//include <SPI.h>
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//include <SD.h>
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//include <SerialFlash.h>
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#include <OpenAudio_ArduinoLibrary.h> //AudioControlTLV320AIC3206 lives here
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// define audio classes and connections
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AudioControlTLV320AIC3206 tlv320aic3206_1;
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AudioInputI2S audioInput;
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AudioOutputI2S audioOutput;
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AudioConnection patchCord1(audioInput, 0, audioOutput, 0);
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AudioConnection patchCord2(audioInput, 1, audioOutput, 1);
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// define the setup
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void setup(void)
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{
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//allocate the audio memory first
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AudioMemory(10); //big number to accomodate the delay effect
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//begin the serial comms
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Serial.begin(115200); delay(500);
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Serial.println("Tympan_TLV320AIC3206: starting...");
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// Setup the TLV320
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tlv320aic3206_1.enable(); // activate AIC
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// Choose the desired input
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tlv320aic3206_1.inputSelect(TYMPAN_INPUT_ON_BOARD_MIC); // use the on board microphones // default
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// tlv320aic3206_1.inputSelect(TYMPAN_INPUT_JACK_AS_MIC); // use the microphone jack - defaults to mic bias 2.5V
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// tlv320aic3206_1.inputSelect(TYMPAN_INPUT_JACK_AS_LINEIN); // use the microphone jack - defaults to mic bias OFF
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// tlv320aic3206_1.inputSelect(TYMPAN_INPUT_LINE_IN); // use the line in pads on the TYMPAN board - defaults to mic bias OFF
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//Adjust the MIC bias, if using TYMPAN_INPUT_JACK_AS_MIC
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// tlv320aic3206_1.setMicBias(TYMPAN_MIC_BIAS_OFF); // Turn mic bias off
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// tlv320aic3206_1.setMicBias(TYMPAN_MIC_BIAS_2_5); // set mic bias to 2.5 // default
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// tlv320aic3206_1.setMicBias(TYMPAN_MIC_BIAS_1_7); // set mic bias to 1.7
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// tlv320aic3206_1.setMicBias(TYMPAN_MIC_BIAS_1_25); // set mic bias to 1.25
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// tlv320aic3206_1.setMicBias(TYMPAN_MIC_BIAS_VSUPPLY); // set mic bias to supply voltage
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// VOLUMES
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tlv320aic3206_1.volume_dB(10); // -63.6 to +24 dB in 0.5dB steps. uses float
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tlv320aic3206_1.setInputGain_dB(10); // set MICPGA volume, 0-47.5dB in 0.5dB setps
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Serial.println("Done");
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}
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void loop(void)
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{
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// Nothing to do - just looping input to output
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delay(2000);
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Serial.println("Running...");
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}
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