我要读高频率的书。模拟信号数据从一个ADC1通道和读取低频率。来自其他ADC1引脚的数据。

我用I2S作为高频。数据读取，运行完美，但一旦I2S配置完毕，所有其他ADC1引脚只读取4095。

什么是正确的处理我的要求？

因为wifi不能使用ADC2。

代码摘录：

  void readerTask(void *param) {
    size_t bytesRead = 0;
    while(true) {
      // Get ADC data from DMA buffer
      i2s_read(I2S_NUM_0, buf, sizeof(buf), &bytesRead, portMAX_DELAY);
      // prevent the data getting corrupted
      i2s_adc_disable(I2S_NUM_0);
      /* data processing */
      delay(30);
      i2s_adc_enable(I2S_NUM_0);
  void setup() {
    i2s_config_t i2s_config = {
        .mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_ADC_BUILT_IN),
        .sample_rate = 8000,
        .bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT,
        .channel_format = I2S_CHANNEL_FMT_ONLY_LEFT,
        .communication_format = I2S_COMM_FORMAT_I2S_LSB,
        .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1,
        .dma_buf_count = 2,
        .dma_buf_len = 1024,
        .use_apll = false,
        .tx_desc_auto_clear = false,
        .fixed_mclk = 0};
    //install and start i2s driver
    i2s_driver_install(I2S_NUM_0, &i2s_config, 0, NULL);
    //init ADC pad
    i2s_set_adc_mode(ADC_UNIT_1, ADC1_CHANNEL_0);
    // enable the ADC
    i2s_adc_enable(I2S_NUM_0);
    // start a task to read samples from I2S
    xTaskCreatePinnedToCore(readerTask, "Reader Task", 2048, NULL, 1, NULL, 0);
  void loop()
    EVERY_N_MILLISECONDS( 100 ) { 
      // read low freq. data
      int test = analogRead(34);   // will always read 4095