Posted on February 24, 2016 at 13:56
I am really got tired after so many attempt to use this hal drivers for ADC sampling in dual mode and send data over uart. For god sake plz help me. I did whatever user manuals said but still no output.
This is the code:
/**
/* Includes ------------------------------------------------------------------*/
include ''stm32f4xx_hal.h''
/* USER CODE BEGIN Includes */
include <
stdio.h
>
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
ADC_HandleTypeDef hadc1;
ADC_HandleTypeDef hadc2;
DMA_HandleTypeDef hdma_adc1;
DMA_HandleTypeDef hdma_adc2;
UART_HandleTypeDef huart3;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
//__IO uint16_t ADC_val[2]={0};
char senddata1[20];
char senddata2[20];
__IO uint32_t ADC_val=0;
__IO uint16_t ADC1_val=0;
__IO uint16_t ADC2_val=0;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_ADC1_Init(void);
static void MX_ADC2_Init(void);
static void MX_USART3_UART_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* 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_ADC1_Init();
MX_ADC2_Init();
MX_USART3_UART_Init();
/* USER CODE BEGIN 2 */
HAL_ADCEx_MultiModeStart_DMA(&hadc1, (uint32_t*)&ADC_val, 2);
//HAL_ADC_Start(&hadc1);
//HAL_ADC_Start(&hadc2);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
__PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 168;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 4;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* ADC1 init function */
void MX_ADC1_Init(void)
{
ADC_MultiModeTypeDef multimode;
ADC_ChannelConfTypeDef sConfig;
/**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV8;
hadc1.Init.Resolution = ADC_RESOLUTION12b;
hadc1.Init.ScanConvMode = DISABLE;
hadc1.Init.ContinuousConvMode = ENABLE;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DMAContinuousRequests = ENABLE;
hadc1.Init.EOCSelection = EOC_SINGLE_CONV;
HAL_ADC_Init(&hadc1);
/**Configure the ADC multi-mode
*/
multimode.Mode = ADC_DUALMODE_REGSIMULT;
multimode.DMAAccessMode = ADC_DMAACCESSMODE_2;
multimode.TwoSamplingDelay = ADC_TWOSAMPLINGDELAY_5CYCLES;
HAL_ADCEx_MultiModeConfigChannel(&hadc1, &multimode);
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_2;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_480CYCLES;
HAL_ADC_ConfigChannel(&hadc1, &sConfig);
}
/* ADC2 init function */
void MX_ADC2_Init(void)
{
ADC_MultiModeTypeDef multimode;
ADC_ChannelConfTypeDef sConfig;
/**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
hadc2.Instance = ADC2;
hadc2.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV8;
hadc2.Init.Resolution = ADC_RESOLUTION12b;
hadc2.Init.ScanConvMode = DISABLE;
hadc2.Init.ContinuousConvMode = ENABLE;
hadc2.Init.DiscontinuousConvMode = DISABLE;
hadc2.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc2.Init.NbrOfConversion = 1;
hadc2.Init.DMAContinuousRequests = ENABLE;
hadc2.Init.EOCSelection = EOC_SINGLE_CONV;
HAL_ADC_Init(&hadc2);
/**Configure the ADC multi-mode
*/
multimode.Mode = ADC_DUALMODE_REGSIMULT;
multimode.DMAAccessMode = ADC_DMAACCESSMODE_2;
multimode.TwoSamplingDelay = ADC_TWOSAMPLINGDELAY_5CYCLES;
HAL_ADCEx_MultiModeConfigChannel(&hadc2, &multimode)
;
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_1;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_480CYCLES;
HAL_ADC_ConfigChannel(&hadc2, &sConfig);
}
/* USART3 init function */
void MX_USART3_UART_Init(void)
{
huart3.Instance = USART3;
huart3.Init.BaudRate = 256000;
huart3.Init.WordLength = UART_WORDLENGTH_8B;
huart3.Init.StopBits = UART_STOPBITS_1;
huart3.Init.Parity = UART_PARITY_NONE;
huart3.Init.Mode = UART_MODE_TX_RX;
huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart3.Init.OverSampling = UART_OVERSAMPLING_16;
HAL_UART_Init(&huart3);
}
/**
* Enable DMA controller clock
*/
void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__DMA2_CLK_ENABLE();
/* DMA interrupt init */
HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn);
HAL_NVIC_SetPriority(DMA2_Stream2_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA2_Stream2_IRQn);
}
/** Pinout Configuration
*/
void MX_GPIO_Init(void)
{
/* GPIO Ports Clock Enable */
__GPIOA_CLK_ENABLE();
__GPIOB_CLK_ENABLE();
}
/* USER CODE BEGIN 4 */
//void ADC_MultiModeDMAConvCplt(DMA_HandleTypeDef *hdma) {
void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc){
ADC_val=HAL_ADCEx_MultiModeGetValue(&hadc1);
ADC1_val=(ADC_val)&0xFFFF; //extract lower 16 bit
ADC2_val=(ADC_val>>16)&0xFFFF; //extract higher 16 bit
sprintf(senddata1,''data1:%d'', ADC1_val);
sprintf(senddata2,''data2:%d'', ADC2_val);
HAL_UART_Transmit(&huart3, (uint8_t*)&senddata1,20,10000);
HAL_UART_Transmit(&huart3, (uint8_t*)&senddata2,20,10000);
}
/* USER CODE END 4 */
ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf(''Wrong parameters value: file %s on line %d\r\n'', file, line) */
/* USER CODE END 6 */
}
endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
uart-flag no-hablo-hal usart-adc-multi-mode waste-of-time at-last-i-see-light usart-dma-adc wonder-question
6KHz input
A single channel does not scan. Channels = 1, Scan = DisableI will turn the scan off.Ideally do one buffer so you don't transfer discontinuities as you confirm the functionality.