149 lines
3.4 KiB
C
149 lines
3.4 KiB
C
/* USER CODE BEGIN Header */
|
|
/**
|
|
******************************************************************************
|
|
* @file dac.c
|
|
* @brief This file provides code for the configuration
|
|
* of the DAC instances.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2024 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 hdac;
|
|
|
|
/* DAC init function */
|
|
void MX_DAC_Init(void)
|
|
{
|
|
|
|
/* USER CODE BEGIN DAC_Init 0 */
|
|
|
|
/* USER CODE END DAC_Init 0 */
|
|
|
|
DAC_ChannelConfTypeDef sConfig = {0};
|
|
|
|
/* USER CODE BEGIN DAC_Init 1 */
|
|
|
|
/* USER CODE END DAC_Init 1 */
|
|
|
|
/** DAC Initialization
|
|
*/
|
|
hdac.Instance = DAC;
|
|
if (HAL_DAC_Init(&hdac) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
|
|
/** DAC channel OUT1 config
|
|
*/
|
|
sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
|
|
sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_DISABLE;
|
|
if (HAL_DAC_ConfigChannel(&hdac, &sConfig, DAC_CHANNEL_1) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
/* USER CODE BEGIN DAC_Init 2 */
|
|
HAL_DAC_Start(&hdac, DAC_CHANNEL_1);
|
|
/* USER CODE END DAC_Init 2 */
|
|
|
|
}
|
|
|
|
void HAL_DAC_MspInit(DAC_HandleTypeDef* dacHandle)
|
|
{
|
|
|
|
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
|
if(dacHandle->Instance==DAC)
|
|
{
|
|
/* USER CODE BEGIN DAC_MspInit 0 */
|
|
|
|
/* USER CODE END DAC_MspInit 0 */
|
|
/* DAC clock enable */
|
|
__HAL_RCC_DAC_CLK_ENABLE();
|
|
|
|
__HAL_RCC_GPIOA_CLK_ENABLE();
|
|
/**DAC GPIO Configuration
|
|
PA4 ------> DAC_OUT1
|
|
*/
|
|
GPIO_InitStruct.Pin = CV_DAC_Pin;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
HAL_GPIO_Init(CV_DAC_GPIO_Port, &GPIO_InitStruct);
|
|
|
|
/* DAC interrupt Init */
|
|
HAL_NVIC_SetPriority(TIM6_DAC_IRQn, 5, 0);
|
|
HAL_NVIC_EnableIRQ(TIM6_DAC_IRQn);
|
|
/* USER CODE BEGIN DAC_MspInit 1 */
|
|
|
|
/* USER CODE END DAC_MspInit 1 */
|
|
}
|
|
}
|
|
|
|
void HAL_DAC_MspDeInit(DAC_HandleTypeDef* dacHandle)
|
|
{
|
|
|
|
if(dacHandle->Instance==DAC)
|
|
{
|
|
/* USER CODE BEGIN DAC_MspDeInit 0 */
|
|
|
|
/* USER CODE END DAC_MspDeInit 0 */
|
|
/* Peripheral clock disable */
|
|
__HAL_RCC_DAC_CLK_DISABLE();
|
|
|
|
/**DAC GPIO Configuration
|
|
PA4 ------> DAC_OUT1
|
|
*/
|
|
HAL_GPIO_DeInit(CV_DAC_GPIO_Port, CV_DAC_Pin);
|
|
|
|
/* DAC interrupt Deinit */
|
|
/* USER CODE BEGIN DAC:TIM6_DAC_IRQn disable */
|
|
/**
|
|
* Uncomment the line below to disable the "TIM6_DAC_IRQn" interrupt
|
|
* Be aware, disabling shared interrupt may affect other IPs
|
|
*/
|
|
/* HAL_NVIC_DisableIRQ(TIM6_DAC_IRQn); */
|
|
/* USER CODE END DAC:TIM6_DAC_IRQn disable */
|
|
|
|
/* USER CODE BEGIN DAC_MspDeInit 1 */
|
|
|
|
/* USER CODE END DAC_MspDeInit 1 */
|
|
}
|
|
}
|
|
|
|
/* USER CODE BEGIN 1 */
|
|
void dac_set_voltage(float *vol)
|
|
{
|
|
if (vol == NULL)
|
|
return;
|
|
|
|
float temp = *vol;
|
|
|
|
// 0~30v输出
|
|
if (*vol > 30.0f)
|
|
*vol = 30.0f;
|
|
else if (*vol < 0.0f)
|
|
*vol = 0.0f;
|
|
|
|
temp /= 10.0f;
|
|
temp = temp * 4096 / 3.0f;
|
|
|
|
if (temp >= 4096)
|
|
temp = 4095;
|
|
|
|
HAL_DAC_SetValue(&hdac, DAC_CHANNEL_1, DAC_ALIGN_12B_R, temp);
|
|
}
|
|
/* USER CODE END 1 */
|