bartool/stm32g474_dac_dma_demo
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working dac dma

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bartool
2023-12-13 21:26:21 +01:00
parent ca96771e90
commit 75d8c8560d
15 changed files with 59265 additions and 216 deletions
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142
Core/Src/main.c
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@@ -1,20 +1,20 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @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.
*
******************************************************************************
*/
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @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 "main.h"
@@ -37,7 +37,7 @@
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
#define DAC_LENGHT 16
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
@@ -48,11 +48,14 @@
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
volatile uint8_t dac_no;
uint16_t dac_data_ch1[DAC_LENGHT];
uint16_t dac_data_ch2[DAC_LENGHT];
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_NVIC_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
@@ -63,9 +66,9 @@ void SystemClock_Config(void);
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
@@ -94,16 +97,50 @@ int main(void)
MX_DAC4_Init();
MX_LPUART1_UART_Init();
MX_OPAMP4_Init();
MX_OPAMP5_Init();
MX_TIM7_Init();
/* USER CODE BEGIN 2 */
/* Initialize interrupts */
MX_NVIC_Init();
/* USER CODE BEGIN 2 */
for (size_t i = 0; i < DAC_LENGHT; i++)
{
if (i % 2 == 0)
{
dac_data_ch1[i] = 0;
dac_data_ch2[i] = 4095;
}
else
{
dac_data_ch1[i] = 4095;
dac_data_ch2[i] = 0;
}
}
HAL_DAC_Start_DMA(&hdac4, DAC_CHANNEL_1, (uint32_t *)dac_data_ch1, DAC_LENGHT, DAC_ALIGN_12B_R);
// HAL_DAC_Start_DMA(&hdac4, DAC_CHANNEL_2, (uint32_t *)dac_data_ch2, DAC_LENGHT, DAC_ALIGN_12B_R);
// HAL_DAC_Start(&hdac4, DAC_CHANNEL_1);
// HAL_DAC_Start(&hdac4, DAC_CHANNEL_2);
HAL_OPAMP_Start(&hopamp4);
// HAL_OPAMP_Start(&hopamp5);
HAL_TIM_Base_Start_IT(&htim7);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
uint8_t i = 0;
while (1)
{
// HAL_DAC_SetValue(&hdac4, DAC_CHANNEL_1, DAC_ALIGN_12B_R, dac_data_ch1[i]);
// HAL_DAC_SetValue(&hdac4, DAC_CHANNEL_2, DAC_ALIGN_12B_R, dac_data_ch1[i++]);
if (i >= DAC_LENGHT)
{
i = 0;
}
// HAL_GPIO_TogglePin(LD2_GPIO_Port, LD2_Pin);
HAL_Delay(1000);
htim7.Instance->PSC = 100;
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
@@ -112,21 +149,21 @@ int main(void)
}
/**
* @brief System Clock Configuration
* @retval None
*/
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
*/
HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1_BOOST);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
@@ -142,9 +179,8 @@ void SystemClock_Config(void)
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
*/
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_DIV1;
@@ -156,14 +192,36 @@ void SystemClock_Config(void)
}
}
/* USER CODE BEGIN 4 */
/**
* @brief NVIC Configuration.
* @retval None
*/
static void MX_NVIC_Init(void)
{
/* TIM7_DAC_IRQn interrupt configuration */
HAL_NVIC_SetPriority(TIM7_DAC_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(TIM7_DAC_IRQn);
}
/* USER CODE BEGIN 4 */
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
HAL_GPIO_TogglePin(LD2_GPIO_Port, LD2_Pin);
}
void HAL_DAC_ConvHalfCpltCallbackCh1(DAC_HandleTypeDef *hdac)
{
if (hdac->Instance == DAC4)
{
dac_no = 1;
}
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
@@ -175,14 +233,14 @@ void Error_Handler(void)
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
#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
*/
* @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 */