ES7243E麦克风矩阵无法录音，什么原因 (AUD-5066)

[huangdiajd]

我能读得到i2c的id，但是没法实现录音功能

//控制 ES7243E 音频编解码器的 ADC (Analog-to-Digital Converter) 功能的使能或禁用
void es7243e_adc_enable(bool enable)
{
if (enable) {
es7243e_write_byte(0xF9, 0x00);
es7243e_write_byte(0x04, 0x01);
es7243e_write_byte(0x17, 0x01);
es7243e_write_byte(0x20, 0x10);
es7243e_write_byte(0x21, 0x10);
es7243e_write_byte(0x00, 0x80);
es7243e_write_byte(0x01, 0x3A);
es7243e_write_byte(0x16, 0x3F);
es7243e_write_byte(0x16, 0x00);
} else {
es7243e_write_byte(0x04, 0x02);
es7243e_write_byte(0x04, 0x01);
es7243e_write_byte(0xF7, 0x30);
es7243e_write_byte(0xF9, 0x01);
es7243e_write_byte(0x16, 0xFF);
es7243e_write_byte(0x17, 0x00);
es7243e_write_byte(0x01, 0x38);
es7243e_write_byte(0x20, 0x00);
es7243e_write_byte(0x21, 0x00);
es7243e_write_byte(0x00, 0x00);
es7243e_write_byte(0x00, 0x1E);
es7243e_write_byte(0x01, 0x30);
es7243e_write_byte(0x01, 0x00);
}
}
void es7243e_init(void)
{
i2c_bus_init();//i2c初始化

es7243e_write_byte(0x01, 0x3A);
es7243e_write_byte(0x00, 0x80);
es7243e_write_byte(0xF9, 0x00);
es7243e_write_byte(0x04, 0x02);
es7243e_write_byte(0x04, 0x01);
es7243e_write_byte(0xF9, 0x01);
es7243e_write_byte(0x00, 0x1E);
es7243e_write_byte(0x01, 0x00);

es7243e_write_byte(0x02, 0x00);
es7243e_write_byte(0x03, 0x20);
es7243e_write_byte(0x04, 0x01);
es7243e_write_byte(0x0D, 0x00);
es7243e_write_byte(0x05, 0x00);
es7243e_write_byte(0x06, 0x03); // SCLK=MCLK/4
es7243e_write_byte(0x07, 0x00); // LRCK=MCLK/256
es7243e_write_byte(0x08, 0xFF); // LRCK=MCLK/256

es7243e_write_byte(0x09, 0xCA);
es7243e_write_byte(0x0A, 0x85);
es7243e_write_byte(0x0B, 0x00);
es7243e_write_byte(0x0E, 0xBF);
es7243e_write_byte(0x0F, 0x80);
es7243e_write_byte(0x14, 0x0C);
es7243e_write_byte(0x15, 0x0C);
es7243e_write_byte(0x17, 0x02);
es7243e_write_byte(0x18, 0x26);
es7243e_write_byte(0x19, 0x77);
es7243e_write_byte(0x1A, 0xF4);
es7243e_write_byte(0x1B, 0x66);
es7243e_write_byte(0x1C, 0x44);
es7243e_write_byte(0x1E, 0x00);
es7243e_write_byte(0x1F, 0x0C);
es7243e_write_byte(0x20, 0x1A); //PGA gain +30dB
es7243e_write_byte(0x21, 0x1A); //PGA gain +30dB

es7243e_write_byte(0x00, 0x80); //Slave  Mode
es7243e_write_byte(0x01, 0x3A);
es7243e_write_byte(0x16, 0x3F);
es7243e_write_byte(0x16, 0x00);

es7243e_adc_enable(false);

}
void i2s_driver_init(void)
{
// gpio_set_direction(ES7243_I2S_MCLK,GPIO_MODE_OUTPUT);
// gpio_set_level(ES7243_I2S_MCLK,1);
i2s_chan_config_t cfg = I2S_CHANNEL_DEFAULT_CONFIG(ES7243_I2S_NUM,I2S_ROLE_MASTER);
//cfg.auto_clear = true; // Auto clear the legacy data in the DMA buffer
ESP_ERROR_CHECK(i2s_new_channel(&cfg,NULL,&rx_handle));
i2s_std_config_t std_cfg = {
.clk_cfg = I2S_STD_CLK_DEFAULT_CONFIG(ES7243_I2S_FRE),
.slot_cfg = I2S_STD_PHILIPS_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_16BIT, I2S_SLOT_MODE_STEREO),
.gpio_cfg = {
.mclk = ES7243_I2S_MCLK,
.bclk = ES7243_I2S_BCLK,
.ws = ES7243_I2S_WS,
.dout = ES7243_I2S_DOUT,
.din = ES7243_I2S_DIN,
.invert_flags = {
.mclk_inv = false,
.bclk_inv = false,
.ws_inv = false,
},
},
};
std_cfg.clk_cfg.mclk_multiple = 384;
ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle,&std_cfg));
ESP_ERROR_CHECK(i2s_channel_enable(rx_handle));
// i2s_tdm_config_t i2s_tdm_rx_cfg ={
// .clk_cfg = {
// .clk_src = I2S_CLK_SRC_DEFAULT,
// .sample_rate_hz = 48000,
// .mclk_multiple = 256
// },
// .gpio_cfg = {
// .mclk = ES7243_I2S_MCLK,
// .bclk = ES7243_I2S_BCLK,
// .ws = ES7243_I2S_WS,
// .dout = -1, // ES7210 only has ADC capability
// .din = ES7243_I2S_DIN
// },
// .slot_cfg = I2S_TDM_PHILIPS_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_16BIT, I2S_SLOT_MODE_STEREO, EXAMPLE_I2S_TDM_SLOT_MASK),
// };
// ESP_ERROR_CHECK(i2s_channel_init_tdm_mode(rx_handle, &i2s_tdm_rx_cfg));
// ESP_ERROR_CHECK(i2s_channel_enable(rx_handle));

}

void MEMS_READ_Task(void)
{
size_t r_bytes = 0;
//ESP_ERROR_CHECK(i2s_channel_enable(rx_handle));
while(1)
{
int8_t sBuffer =(int8_t)malloc(2400 * sizeof(int8_t));
if (sBuffer == NULL) {
printf("Failed to allocate memory for sBuffer\n");
return;
}
esp_err_t result = i2s_channel_read(rx_handle, sBuffer, 2400, &r_bytes, portMAX_DELAY) ;
if (result == ESP_OK)
{
int samples_read = r_bytes / 8;
if (samples_read > 0)
{
int mean = 0;
for (int i = 0; i < samples_read; ++i) {
mean += (sBuffer[i]);
}
mean /= samples_read;
printf("%d\n",mean);
}
}
else {
printf("Read Task: i2s read failed\n");
}
vTaskDelay(pdMS_TO_TICKS(500));
free(sBuffer);
}
ESP_ERROR_CHECK(i2s_channel_disable(rx_handle));

}
以上是我重点代码，请问下，这个无法录音，在代码方面有问题吗？

[TempoTian]

可以dump下es7243e的寄存器，对比看和设定是否一致，如果一致在看下线上的信号是否OK