C++ (Cpp) adc_clear_overrun_flag Beispiele

Beispiel #1

Datei: adc-dma-stm32f4discovery.c Projekt: JamesLinus/ARM-Ports

/* Check for overrun errors */
void adc_isr(void)
{
	if (adc_get_overrun_flag(ADC1))
	{
		adc_clear_overrun_flag(ADC1);
	}
	gpio_set(GPIOD, GPIO15);
}

Beispiel #2

Datei: stm32f4-discovery.c Projekt: via/tfi-computer

static void platform_init_adc() {
  /* Set up DMA for the ADC */
  nvic_enable_irq(NVIC_DMA2_STREAM0_IRQ);
  nvic_set_priority(NVIC_DMA2_STREAM0_IRQ, 64);

  /* Set up ADC */
  for (int i = 0; i < NUM_SENSORS; ++i) {
    if (config.sensors[i].method == SENSOR_ADC) {
      adc_pins[i] = config.sensors[i].pin;
      gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, (1<<adc_pins[i]));
    }
  }
  adc_off(ADC1);
  adc_enable_scan_mode(ADC1);
  adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_15CYC);
  adc_power_on(ADC1);

  adc_disable_dma(ADC1);
  adc_enable_dma(ADC1);
  adc_clear_overrun_flag(ADC1);
  adc_set_dma_continue(ADC1);

  dma_stream_reset(DMA2, DMA_STREAM0);
  dma_set_priority(DMA2, DMA_STREAM0, DMA_SxCR_PL_HIGH);
  dma_set_memory_size(DMA2, DMA_STREAM0, DMA_SxCR_MSIZE_16BIT);
  dma_set_peripheral_size(DMA2, DMA_STREAM0, DMA_SxCR_PSIZE_16BIT);
  dma_enable_memory_increment_mode(DMA2, DMA_STREAM0);
  dma_set_transfer_mode(DMA2, DMA_STREAM0, DMA_SxCR_DIR_PERIPHERAL_TO_MEM);
  dma_enable_circular_mode(DMA2, DMA_STREAM0);
  dma_set_peripheral_address(DMA2, DMA_STREAM0, (uint32_t) &ADC1_DR);
  dma_set_memory_address(DMA2, DMA_STREAM0, (uint32_t) adc_dma_buf);
  dma_set_number_of_data(DMA2, DMA_STREAM0, NUM_SENSORS);
  dma_enable_transfer_complete_interrupt(DMA2, DMA_STREAM0);
  dma_channel_select(DMA2, DMA_STREAM0, DMA_SxCR_CHSEL_0);
  dma_enable_stream(DMA2, DMA_STREAM0);
  adc_set_regular_sequence(ADC1, NUM_SENSORS, adc_pins);
}