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https://github.com/m5stack/M5Module-Audio.git
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Junhuang
117 lines
4.1 KiB
Arduino
117 lines
4.1 KiB
Arduino
/*
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* SPDX-FileCopyrightText: 2025 M5Stack Technology CO LTD
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*
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* SPDX-License-Identifier: MIT
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*
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* @Hardwares: M5Core2 + Module Audio
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* @Dependent Library:
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* M5Unified@^0.2.5: https://github.com/m5stack/M5Unified
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* Module Audio:
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*/
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#include "M5Unified.h"
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#include "audio_i2c.hpp"
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#include "es8388.hpp"
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#include "driver/i2s.h"
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AudioI2c device;
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#define SYS_I2C_SDA_PIN 21
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#define SYS_I2C_SCL_PIN 22
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#define SYS_I2S_MCLK_PIN 0
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#define SYS_I2S_SCLK_PIN 19
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#define SYS_I2S_LRCK_PIN 27
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#define SYS_I2S_DOUT_PIN 2
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#define SYS_I2S_DIN_PIN 34
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#define SYS_SPI_MISO_PIN 38
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#define SYS_SPI_MOSI_PIN 23
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#define SYS_SPI_CLK_PIN 18
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#define SYS_SPI_CS_PIN 4
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ES8388 es8388(&Wire, SYS_I2C_SDA_PIN, SYS_I2C_SCL_PIN);
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uint16_t rxbuf[256], txbuf[256];
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size_t readsize = 0;
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byte error, address;
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const uint32_t color[] = {0xFF0000, 0xFF0000, 0xFF0000, 0x00FF00, 0xFFFF00, 0xFFFFFF, 0xFFFFFF, 0xFFFFFF, 0xFFFFFF};
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i2s_config_t i2s_config = {.mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX | I2S_MODE_RX),
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.sample_rate = 44100,
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.bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT,
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.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
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.communication_format = I2S_COMM_FORMAT_STAND_I2S,
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.intr_alloc_flags = 0,
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.dma_buf_count = 8,
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.dma_buf_len = 512,
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.use_apll = false,
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.tx_desc_auto_clear = true,
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.fixed_mclk = 0};
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i2s_pin_config_t pin_config = {
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.mck_io_num = SYS_I2S_MCLK_PIN,
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.bck_io_num = SYS_I2S_SCLK_PIN,
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.ws_io_num = SYS_I2S_LRCK_PIN,
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.data_out_num = SYS_I2S_DOUT_PIN,
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.data_in_num = SYS_I2S_DIN_PIN,
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};
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void setup()
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{
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M5.begin();
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Serial.begin(115200);
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for (int address = 1; address < 127; address++) {
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Wire.beginTransmission(address);
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error = Wire.endTransmission();
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if (error == 0) {
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Serial.print("Found I2C device at address 0x");
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Serial.print(address, HEX);
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Serial.print(" \n");
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} else if (error == 4) {
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Serial.print("Unknown error at address 0x");
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Serial.println(address, HEX);
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}
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}
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device.begin(&Wire, SYS_I2C_SCL_PIN, SYS_I2C_SCL_PIN);
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device.setHPMode(AUDIO_HPMODE_NATIONAL);
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device.setMICStatus(AUDIO_MIC_OPEN);
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device.setRGBBrightness(100);
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Serial.printf("getHPMode:%d\n", device.getHPMode());
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Serial.printf("getMICStatus:%d\n", device.getMICStatus());
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for (int i = 0; i <= 2; i++) {
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device.setRGBLED(i, color[i + 3]);
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// Output the hexadecimal value of the current color
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Serial.printf("Set RGB to %06X\n", (unsigned int)color[i + 3]);
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Serial.printf("get RGB to %06X\n", device.getRGBLED(i));
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}
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Serial.println("Read Reg ES8388 : ");
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if (!es8388.init()) Serial.println("Init Fail");
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es8388.setADCInput(ADC_INPUT_LINPUT1_RINPUT1);
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es8388.setMicGain(MIC_GAIN_24DB);
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es8388.setADCVolume(100);
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// The volume output should not exceed 40, otherwise there will be noise or current sounds
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es8388.setDACVolume(40);
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es8388.setDACOutput(DAC_OUTPUT_OUT1);
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es8388.setMixSourceSelect(MIXADC, MIXADC);
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es8388.setBitsSample(ES_MODULE_ADC, BIT_LENGTH_16BITS);
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es8388.setSampleRate(SAMPLE_RATE_44K);
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uint8_t *reg;
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for (uint8_t i = 0; i < 53; i++) {
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reg = es8388.readAllReg();
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Serial.printf("Reg-%02d = 0x%02x\r\n", i, reg[i]);
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}
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// i2s
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PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO0_U, FUNC_GPIO0_CLK_OUT1);
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WRITE_PERI_REG(PIN_CTRL, 0xFFF0);
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i2s_driver_install(I2S_NUM_0, &i2s_config, 0, NULL);
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i2s_set_pin(I2S_NUM_0, &pin_config);
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}
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void loop()
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{
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i2s_read(I2S_NUM_0, &rxbuf[0], 256 * 2, &readsize, 1000);
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for (int i = 0; i < 256; i++) {
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// direct transfer too txbuff
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txbuf[i] = rxbuf[i];
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// txbuf[i] = 0; //mute
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}
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// play received buffer
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i2s_write(I2S_NUM_0, &txbuf[0], 256 * 2, &readsize, 1000);
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} |