[AT32F437] AT32F437内置温度模拟采样通道

static void adc_temperature_config(void)

{

  adc_common_config_type adc_common_struct;

  adc_base_config_type adc_base_struct;

  crm_periph_clock_enable(CRM_ADC1_PERIPH_CLOCK, TRUE);

  adc_common_default_para_init(&adc_common_struct);



  /* config combine mode */

  adc_common_struct.combine_mode = ADC_INDEPENDENT_MODE;



  /* config division,adcclk is division by hclk */

  adc_common_struct.div = ADC_HCLK_DIV_4;



  /* config common dma mode,it's not useful in independent mode */

  adc_common_struct.common_dma_mode = ADC_COMMON_DMAMODE_DISABLE;



  /* config common dma request repeat */

  adc_common_struct.common_dma_request_repeat_state = FALSE;



  /* config adjacent adc sampling interval,it's useful for ordinary shifting mode */

  adc_common_struct.sampling_interval = ADC_SAMPLING_INTERVAL_5CYCLES;



  /* config inner temperature sensor and vintrv */

  adc_common_struct.tempervintrv_state = TRUE;



  /* config voltage battery */

  adc_common_struct.vbat_state = FALSE;

  adc_common_config(&adc_common_struct);



  adc_base_default_para_init(&adc_base_struct);



  adc_base_struct.sequence_mode = FALSE;

  adc_base_struct.repeat_mode = FALSE;

  adc_base_struct.data_align = ADC_RIGHT_ALIGNMENT;

  adc_base_struct.ordinary_channel_length = 1;

  adc_base_config(ADC1, &adc_base_struct);

  adc_resolution_set(ADC1, ADC_RESOLUTION_12B);



  /* config ordinary channel */

  adc_ordinary_channel_set(ADC1, ADC_CHANNEL_16, 1, ADC_SAMPLETIME_640_5);



  /* adc enable */

  adc_enable(ADC1, TRUE);

  while (adc_flag_get(ADC1, ADC_RDY_FLAG) == RESET)

    ;



  /* adc calibration */

  adc_calibration_init(ADC1);

  while (adc_calibration_init_status_get(ADC1))

    ;

  adc_calibration_start(ADC1);

  while (adc_calibration_status_get(ADC1))

    ;

}



// main()

        while (1)

  {

    if (time_line_ms == 0)

    {

      time_line_ms = 200;

      adc_ordinary_software_trigger_enable(ADC1, TRUE);

      while (1)

      {

        adc_flag = adc_flag_get(ADC1, ADC_OCCE_FLAG);

        if (adc_flag == SET)

        {

          break;

        }

      }

      if (adc_seq >= 7)

      {

        temp_mcu = mid_filter(temp_buf, 7);

        adc_seq = 0;

      }

      temp_buf[adc_seq] = adc_ordinary_conversion_data_get(ADC1);

      adc_seq++;

    }

  }