Files
stm32g474_dac_dma_demo/Core/Src/dac.c
2023-12-11 19:14:15 +01:00

156 lines
4.2 KiB
C

/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file dac.c
* @brief This file provides code for the configuration
* of the DAC instances.
******************************************************************************
* @attention
*
* Copyright (c) 2023 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.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "dac.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
DAC_HandleTypeDef hdac4;
DMA_HandleTypeDef hdma_dac4_ch1;
DMA_HandleTypeDef hdma_dac4_ch2;
/* DAC4 init function */
void MX_DAC4_Init(void)
{
/* USER CODE BEGIN DAC4_Init 0 */
/* USER CODE END DAC4_Init 0 */
DAC_ChannelConfTypeDef sConfig = {0};
/* USER CODE BEGIN DAC4_Init 1 */
/* USER CODE END DAC4_Init 1 */
/** DAC Initialization
*/
hdac4.Instance = DAC4;
if (HAL_DAC_Init(&hdac4) != HAL_OK)
{
Error_Handler();
}
/** DAC channel OUT1 config
*/
sConfig.DAC_HighFrequency = DAC_HIGH_FREQUENCY_INTERFACE_MODE_ABOVE_160MHZ;
sConfig.DAC_DMADoubleDataMode = DISABLE;
sConfig.DAC_SignedFormat = DISABLE;
sConfig.DAC_SampleAndHold = DAC_SAMPLEANDHOLD_DISABLE;
sConfig.DAC_Trigger = DAC_TRIGGER_T7_TRGO;
sConfig.DAC_Trigger2 = DAC_TRIGGER_NONE;
sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_DISABLE;
sConfig.DAC_ConnectOnChipPeripheral = DAC_CHIPCONNECT_INTERNAL;
sConfig.DAC_UserTrimming = DAC_TRIMMING_FACTORY;
if (HAL_DAC_ConfigChannel(&hdac4, &sConfig, DAC_CHANNEL_1) != HAL_OK)
{
Error_Handler();
}
/** DAC channel OUT2 config
*/
if (HAL_DAC_ConfigChannel(&hdac4, &sConfig, DAC_CHANNEL_2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DAC4_Init 2 */
/* USER CODE END DAC4_Init 2 */
}
void HAL_DAC_MspInit(DAC_HandleTypeDef* dacHandle)
{
if(dacHandle->Instance==DAC4)
{
/* USER CODE BEGIN DAC4_MspInit 0 */
/* USER CODE END DAC4_MspInit 0 */
/* DAC4 clock enable */
__HAL_RCC_DAC4_CLK_ENABLE();
/* DAC4 DMA Init */
/* DAC4_CH1 Init */
hdma_dac4_ch1.Instance = DMA1_Channel1;
hdma_dac4_ch1.Init.Request = DMA_REQUEST_DAC4_CHANNEL1;
hdma_dac4_ch1.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_dac4_ch1.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_dac4_ch1.Init.MemInc = DMA_MINC_ENABLE;
hdma_dac4_ch1.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
hdma_dac4_ch1.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
hdma_dac4_ch1.Init.Mode = DMA_CIRCULAR;
hdma_dac4_ch1.Init.Priority = DMA_PRIORITY_LOW;
if (HAL_DMA_Init(&hdma_dac4_ch1) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(dacHandle,DMA_Handle1,hdma_dac4_ch1);
/* DAC4_CH2 Init */
hdma_dac4_ch2.Instance = DMA1_Channel2;
hdma_dac4_ch2.Init.Request = DMA_REQUEST_DAC4_CHANNEL2;
hdma_dac4_ch2.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_dac4_ch2.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_dac4_ch2.Init.MemInc = DMA_MINC_ENABLE;
hdma_dac4_ch2.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
hdma_dac4_ch2.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
hdma_dac4_ch2.Init.Mode = DMA_CIRCULAR;
hdma_dac4_ch2.Init.Priority = DMA_PRIORITY_LOW;
if (HAL_DMA_Init(&hdma_dac4_ch2) != HAL_OK)
{
Error_Handler();
}
__HAL_LINKDMA(dacHandle,DMA_Handle2,hdma_dac4_ch2);
/* USER CODE BEGIN DAC4_MspInit 1 */
/* USER CODE END DAC4_MspInit 1 */
}
}
void HAL_DAC_MspDeInit(DAC_HandleTypeDef* dacHandle)
{
if(dacHandle->Instance==DAC4)
{
/* USER CODE BEGIN DAC4_MspDeInit 0 */
/* USER CODE END DAC4_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_DAC4_CLK_DISABLE();
/* DAC4 DMA DeInit */
HAL_DMA_DeInit(dacHandle->DMA_Handle1);
HAL_DMA_DeInit(dacHandle->DMA_Handle2);
/* USER CODE BEGIN DAC4_MspDeInit 1 */
/* USER CODE END DAC4_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */