|
|
发表于 2021-4-12 17:06:15
|
显示全部楼层
参照H7的例子，使用STM32G070实现定时器触发ADC转换数据，使用HAL_ADC_Start_IT方式可以，
但使用HAL_ADC_Start_DMA就不成功
static void MX_ADC1_Init(void)
{
ADC_AnalogWDGConfTypeDef AnalogWDGConfig;
/* USER CODE BEGIN ADC1_Init 0 */
/* USER CODE END ADC1_Init 0 */
ADC_ChannelConfTypeDef sConfig = {0};
/* USER CODE BEGIN ADC1_Init 1 */
/* USER CODE END ADC1_Init 1 */
/** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;//ADC_CLOCK_ASYNC_DIV1;//
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;//¶àí¨μàé¨Ãèòaê1Äü
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc1.Init.LowPowerAutoWait = DISABLE;//μè′y×a»»Ä￡ê½
hadc1.Init.LowPowerAutoPowerOff = DISABLE;//×Ô¶ˉ1رÕÄ￡ê½
hadc1.Init.ContinuousConvMode = DISABLE;//μ￥′λòá¬Dø×a»»Ä￡ê½
hadc1.Init.NbrOfConversion = 1;//×a»»í¨μà3¸ö
hadc1.Init.DiscontinuousConvMode = DISABLE;//2»á¬DøÄ￡ê½
// hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;//ADC_SOFTWARE_START;//ADC_EXTERNALTRIG_T3_TRGO;//
// hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;//ADC_EXTERNALTRIGCONVEDGE_NONE;//ADC_EXTERNALTRIGCONVEDGE_RISING;//
hadc1.Init.ExternalTrigConv = ADC_EXTERNALTRIG_T6_TRGO;//ADC_SOFTWARE_START;//ADC_EXTERNALTRIG_T3_TRGO;//
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;//ADC_EXTERNALTRIGCONVEDGE_NONE;//ADC_EXTERNALTRIGCONVEDGE_RISING;//
hadc1.Init.DMAContinuousRequests = DISABLE;
hadc1.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;//òç3ö¸2¸Çêy¾Y
hadc1.Init.SamplingTimeCommon1 = ADC_SAMPLETIME_1CYCLE_5;
hadc1.Init.SamplingTimeCommon2 = ADC_SAMPLETIME_160CYCLES_5;
hadc1.Init.OversamplingMode = DISABLE;//1y2éÑùÆ÷ê1Äü
//hadc1.Init.OversamplingMode = ENABLE;
hadc1.Init.Oversampling.Ratio = ADC_OVERSAMPLING_RATIO_16;
hadc1.Init.Oversampling.RightBitShift = ADC_RIGHTBITSHIFT_4;
hadc1.Init.Oversampling.TriggeredMode = ADC_TRIGGEREDMODE_SINGLE_TRIGGER;
hadc1.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
Error_Handler();
}
/** Configure Regular Channel
*/
sConfig.Channel = ADC_CHANNEL_4;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLINGTIME_COMMON_2;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
Error_Handler();
}
}
int main(void)
{
/* USER CODE BEGIN 1 */
uint32_t tmp_index_adc_converted_data = 0;
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_TIM3_Init();
MX_DMA_Init();
MX_ADC1_Init();
/* USER CODE BEGIN 2 */
for (tmp_index_adc_converted_data = 0; tmp_index_adc_converted_data < ADC_CONVERTED_DATA_BUFFER_SIZE; tmp_index_adc_converted_data++)
{
aADCxConvertedData[tmp_index_adc_converted_data] = VAR_CONVERTED_DATA_INIT_VALUE;
}
/* Initialize LED on board */
BSP_LED_Init(LED4);
/* Run the ADC calibration */
if (HAL_ADCEx_Calibration_Start(&hadc1) != HAL_OK)
{
/* Calibration Error */
Error_Handler();
}
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
if (HAL_TIM_Base_Start_IT(&htim3) != HAL_OK)
{
/* Counter enable error */
Error_Handler();
}
/*## Start ADC conversions ###############################################*/
/* Start ADC group regular conversion with DMA */
if (HAL_ADC_Start_DMA(&hadc1,
(uint32_t *)aADCxConvertedData,
8,
) != HAL_OK)
{
/* ADC conversion start error */
Error_Handler();
}
while (1)
{
；
}
}
|
|
发表于 2020-2-14 01:53:55
楼主
