ADC_RegularConversion_DMA
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Outline
Includes
#include "main.h"
HAL_ADC_MspInit(ADC_HandleTypeDef *)
HAL_ADC_MspDeInit(ADC_HandleTypeDef *)
Files
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SourceVuSTM32 Libraries and SamplesADC_RegularConversion_DMASrc/stm32f4xx_hal_msp.c
 
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/** ****************************************************************************** * @file ADC/ADC_RegularConversion_DMA/Src/stm32f4xx_hal_msp.c * @author MCD Application Team * @brief HAL MSP module. ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** *//* ... */ /* Includes ------------------------------------------------------------------*/ #include "main.h" /** @addtogroup STM32F4xx_HAL_Examples * @{ *//* ... */ /** @defgroup ADC_RegularConversion_DMA * @{ *//* ... */ Includes /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ /** @defgroup HAL_MSP_Private_Functions * @{ *//* ... */ /** * @brief ADC MSP Initialization * This function configures the hardware resources used in this example: * - Peripheral's clock enable * - Peripheral's GPIO Configuration * @param hadc: ADC handle pointer * @retval None *//* ... */ void HAL_ADC_MspInit(ADC_HandleTypeDef *hadc) { GPIO_InitTypeDef GPIO_InitStruct; static DMA_HandleTypeDef hdma_adc; /*##-1- Enable peripherals and GPIO Clocks #################################*/ /* ADC1 Periph clock enable */ ADCx_CLK_ENABLE(); /* Enable GPIO clock ****************************************/ ADCx_CHANNEL_GPIO_CLK_ENABLE(); /* Enable DMA2 clock */ DMAx_CLK_ENABLE(); /*##-2- Configure peripheral GPIO ##########################################*/ /* ADC Channel GPIO pin configuration */ GPIO_InitStruct.Pin = ADCx_CHANNEL_PIN; GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(ADCx_CHANNEL_GPIO_PORT, &GPIO_InitStruct); /*##-3- Configure the DMA streams ##########################################*/ /* Set the parameters to be configured */ hdma_adc.Instance = ADCx_DMA_STREAM; hdma_adc.Init.Channel = ADCx_DMA_CHANNEL; hdma_adc.Init.Direction = DMA_PERIPH_TO_MEMORY; hdma_adc.Init.PeriphInc = DMA_PINC_DISABLE; hdma_adc.Init.MemInc = DMA_MINC_ENABLE; hdma_adc.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD; hdma_adc.Init.MemDataAlignment = DMA_MDATAALIGN_WORD; hdma_adc.Init.Mode = DMA_CIRCULAR; hdma_adc.Init.Priority = DMA_PRIORITY_HIGH; hdma_adc.Init.FIFOMode = DMA_FIFOMODE_DISABLE; hdma_adc.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_HALFFULL; hdma_adc.Init.MemBurst = DMA_MBURST_SINGLE; hdma_adc.Init.PeriphBurst = DMA_PBURST_SINGLE; HAL_DMA_Init(&hdma_adc); /* Associate the initialized DMA handle to the ADC handle */ __HAL_LINKDMA(hadc, DMA_Handle, hdma_adc); /*##-4- Configure the NVIC for DMA #########################################*/ /* NVIC configuration for DMA transfer complete interrupt */ HAL_NVIC_SetPriority(ADCx_DMA_IRQn, 0, 0); HAL_NVIC_EnableIRQ(ADCx_DMA_IRQn); }{ ... } /** * @brief ADC MSP De-Initialization * This function frees the hardware resources used in this example: * - Disable the Peripheral's clock * - Revert GPIO to their default state * @param hadc: ADC handle pointer * @retval None *//* ... */ void HAL_ADC_MspDeInit(ADC_HandleTypeDef *hadc) { /*##-1- Reset peripherals ##################################################*/ ADCx_FORCE_RESET(); ADCx_RELEASE_RESET(); /*##-2- Disable peripherals and GPIO Clocks ################################*/ /* De-initialize the ADC Channel GPIO pin */ HAL_GPIO_DeInit(ADCx_CHANNEL_GPIO_PORT, ADCx_CHANNEL_PIN); }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */
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