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justhomework/EmbededSTM32/lab7/Src/adc.c
2023-06-23 17:30:03 +08:00

197 lines
6.3 KiB
C
Executable file

/**
******************************************************************************
* File Name : ADC.c
* Description : This file provides code for the configuration
* of the ADC instances.
******************************************************************************
*
* COPYRIGHT(c) 2023 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "adc.h"
#include "gpio.h"
#include "dma.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
ADC_HandleTypeDef hadc3;
DMA_HandleTypeDef hdma_adc3;
/* ADC3 init function */
void MX_ADC3_Init(void)
{
ADC_ChannelConfTypeDef sConfig;
/**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
hadc3.Instance = ADC3;
hadc3.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
hadc3.Init.Resolution = ADC_RESOLUTION_12B;
hadc3.Init.ScanConvMode = ENABLE;
hadc3.Init.ContinuousConvMode = ENABLE;
hadc3.Init.DiscontinuousConvMode = DISABLE;
hadc3.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc3.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc3.Init.NbrOfConversion = 3;
hadc3.Init.DMAContinuousRequests = ENABLE;
hadc3.Init.EOCSelection = ADC_EOC_SEQ_CONV;
if (HAL_ADC_Init(&hadc3) != HAL_OK)
{
Error_Handler();
}
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_4;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_112CYCLES;
if (HAL_ADC_ConfigChannel(&hadc3, &sConfig) != HAL_OK)
{
Error_Handler();
}
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_5;
sConfig.Rank = 2;
if (HAL_ADC_ConfigChannel(&hadc3, &sConfig) != HAL_OK)
{
Error_Handler();
}
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_6;
sConfig.Rank = 3;
if (HAL_ADC_ConfigChannel(&hadc3, &sConfig) != HAL_OK)
{
Error_Handler();
}
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
// sConfig.Channel = ADC_CHANNEL_7;
// sConfig.Rank = 4;
// if (HAL_ADC_ConfigChannel(&hadc3, &sConfig) != HAL_OK)
// {
// Error_Handler();
// }
}
void HAL_ADC_MspInit(ADC_HandleTypeDef* adcHandle)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(adcHandle->Instance==ADC3)
{
/* USER CODE BEGIN ADC3_MspInit 0 */
/* USER CODE END ADC3_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_ADC3_CLK_ENABLE();
/**ADC3 GPIO Configuration
PF6 ------> ADC3_IN4
PF7 ------> ADC3_IN5
PF8 ------> ADC3_IN6
PF9 ------> ADC3_IN7
*/
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
/* Peripheral DMA init*/
hdma_adc3.Instance = DMA2_Stream0;
hdma_adc3.Init.Channel = DMA_CHANNEL_2;
hdma_adc3.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_adc3.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_adc3.Init.MemInc = DMA_MINC_ENABLE;
hdma_adc3.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
hdma_adc3.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
hdma_adc3.Init.Mode = DMA_CIRCULAR;
hdma_adc3.Init.Priority = DMA_PRIORITY_HIGH;
hdma_adc3.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
if (HAL_DMA_Init(&hdma_adc3) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(adcHandle,DMA_Handle,hdma_adc3);
/* USER CODE BEGIN ADC3_MspInit 1 */
/* USER CODE END ADC3_MspInit 1 */
}
}
void HAL_ADC_MspDeInit(ADC_HandleTypeDef* adcHandle)
{
if(adcHandle->Instance==ADC3)
{
/* USER CODE BEGIN ADC3_MspDeInit 0 */
/* USER CODE END ADC3_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_ADC3_CLK_DISABLE();
/**ADC3 GPIO Configuration
PF6 ------> ADC3_IN4
PF7 ------> ADC3_IN5
PF8 ------> ADC3_IN6
PF9 ------> ADC3_IN7
*/
HAL_GPIO_DeInit(GPIOF, GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9);
/* Peripheral DMA DeInit*/
HAL_DMA_DeInit(adcHandle->DMA_Handle);
}
/* USER CODE BEGIN ADC3_MspDeInit 1 */
/* USER CODE END ADC3_MspDeInit 1 */
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/