Posted on December 12, 2015 at 08:18 we are configured the ADC1 ADC_CHANNEL_8 & ADC_CHANNEL_9 in DMA mode using STM32CUBMX version 4.0 for MDK-ARM.
But the ADC value are not updated in the user buffer,please help me how to configure the ADC using DMA mode.
int main(void)
{
static uint32_t adc__user_buffer[2]={0};
uint8_t pData[15]={0};
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_ADC_Init();
MX_TIM3_Init();
MX_USART1_UART_Init();
HAL_ADC_MspInit(&hadc);
memset(adc__user_buffer,0,sizeof(adc__user_buffer));
HAL_ADC_Start_DMA(&hadc,(uint32_t*) adc__user_buffer, 2);
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
memset(pData,0,sizeof(pData));
sprintf(pData,''ADC1 %4lu\r\n'',adc__user_buffer[0]);
HAL_UART_Transmit(&huart1, pData, strlen(pData),5);
memset(pData,0,sizeof(pData));
sprintf(pData,''ADC2 %4lu\r\n'',adc__user_buffer[1]);
HAL_UART_Transmit(&huart1, pData, strlen(pData),5);
HAL_Delay(1000);
}
/* USER CODE END 3 */
}
