更好的方法是使用内置的I2S外设将ADC的样本直接读取到内存中。 这是使用I2S读取内置ADC的基本设置。 i2s_config_t i2s_config = { .mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_ADC_BUILT_IN), .sample_rate = 40000, .bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT, .channel...
ADC模式：```c void pcm3070_set_adc_mode() { i2c_write(PCM3070_ADDR, 0x02, 0x01); // ...
I want to connect a analog microphone to the ESP32-S3. But the functions to bring ESP32-S3 in I2S ADC Mode are not available, at ESP32 the functions are available. Will ESP32-S3 support this feature in future or are there any Hardware restrictions? Thanks for your helpESP...
); while(1); } if(ESP_OK != i2s_set_adc_mode(ADC_UNIT_1, ADC_INPUT)){ Serial.printf("Error setting up ADC. Halt!"); while(1); } if(ESP_OK != adc1_config_channel_atten(ADC_INPUT, ADC_ATTEN_DB_11)){ Serial.printf("Error setting up ADC attenuation. Halt!"); while(1);...
Re: How do I use the ADC mode for i2s is esp-idf v5.2.2? Postbyjtwaleson»Mon Oct 21, 2024 7:11 pm Ok thanks for clarifying. But then how do I set up the pin numbers and sample rate configuration etc for i2s? Sorry if this is a stupid question. ...
ADC_Cmd(ADC1, DISABLE); GPIO_SetBits(GPIOC, GPIO_Pin_13); } } SPI2(I2S)中断, 用于每个I2S数据的传输, 因为传输时左右声道的数据是交替传输的, 所以这里需要用一个全局变量切换当前的声道. 因为录音是单声道, 所以传输时对应两个声道, 每个值会被传输两遍. 到达最后一个值后, 会停掉I2S. ...
INMP441_PIN.data_out_num = -1; INMP441_PIN.data_in_num = INMP_SD_NUM; INMP441_config.mode =i2s_mode_t(I2S_MODE_MASTER|I2S_MODE_RX);//I2S_MODE_MASTER(主模式)、I2S_MODE_SLAVE(从模式)和I2S_MODE_TX(以传输为主的从模式) INMP441_config.sample_rate = 44100; //设置采样率,即音频...
TEST_ESP_OK(i2s_set_adc_mode(I2S_ADC_UNIT, I2S_ADC_CHANNEL)); } static void example_i2s_deinit(void) { TEST_ESP_OK( i2s_driver_uninstall(EXAMPLE_I2S_NUM) ); TEST_ESP_OK(i2s_driver_uninstall(EXAMPLE_I2S_NUM)); } /** @@ -172,9 +172,11 @@ static void example_disp_buf(uint8...
set 'ADC PCM' 200,200#音频输入,关闭所有右声道amixer sset 'Right Input Mixer Boost' offamixer sset 'Right Boost Mixer RINPUT1' offamixer sset 'Right Input Boost Mixer RINPUT1' 0amixer sset 'Right Boost Mixer RINPUT2' offamixer sset 'Right Input Boost Mixer RINPUT2' 0amixer sset ...
ADC3101配置如下 ADC3101_rset(ADC3101_I2C_ADDR_2, 27, 0x0d ); // BCLK and WCLK are set ...