【NUCLEO-U575ZI-Q测评】DAC

#include "main.h"



/* Private includes ----------------------------------------------------------*/

/* USER CODE BEGIN Includes */



/* USER CODE END Includes */



/* Private typedef -----------------------------------------------------------*/

/* USER CODE BEGIN PTD */



/* USER CODE END PTD */



/* Private define ------------------------------------------------------------*/

/* USER CODE BEGIN PD */



/* USER CODE END PD */



/* Private macro -------------------------------------------------------------*/

/* USER CODE BEGIN PM */



/* USER CODE END PM */



/* Private variables ---------------------------------------------------------*/



DAC_HandleTypeDef hdac1;



/* USER CODE BEGIN PV */

/* Private variables ---------------------------------------------------------*/

__IO uint32_t UserButtonStatus = 0;  /* set to 1 after Wkup/Tamper push-button interrupt  */

/* USER CODE END PV */



/* Private function prototypes -----------------------------------------------*/

void SystemClock_Config(void);

static void SystemPower_Config(void);

static void MX_ICACHE_Init(void);

static void MX_GPIO_Init(void);

static void MX_DAC1_Init(void);

/* USER CODE BEGIN PFP */

/* Private function prototypes -----------------------------------------------*/

/* USER CODE END PFP */



/* Private user code ---------------------------------------------------------*/

/* USER CODE BEGIN 0 */



/* USER CODE END 0 */



/**

  * [url=home.php?mod=space&uid=247401]@brief[/url]  The application entry point.

  * @retval int

  */

int main(void)

{

  /* USER CODE BEGIN 1 */

  DAC_ChannelConfTypeDef sConfig;



  /* STM32U5xx HAL library initialization:

       - Configure the Flash prefetch

       - Configure the Systick to generate an interrupt each 1 msec

       - Set NVIC Group Priority to 3

       - Low Level Initialization

     */

  /* USER CODE END 1 */



  /* MCU Configuration--------------------------------------------------------*/



  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */

  HAL_Init();



  /* USER CODE BEGIN Init */



  /* USER CODE END Init */



  /* Configure the system clock */

  SystemClock_Config();



  /* Configure the System Power */

  SystemPower_Config();



  /* USER CODE BEGIN SysInit */



  /* USER CODE END SysInit */



  /* Initialize all configured peripherals */

  MX_ICACHE_Init();

  MX_GPIO_Init();

  MX_DAC1_Init();

  /* USER CODE BEGIN 2 */



  /* Configure LED3 */

  BSP_LED_Init(LED3);



  /* Initialize the Wkup/Tamper push-button.

     It is used for changing the gain */

  BSP_PB_Init(BUTTON_USER, BUTTON_MODE_EXTI);

  /*##########################################################################*/

  /*## NORMAL POWER MODE #####################################################*/



  /*##-0- Set DAC Channel1 DHR register ######################################*/

  if (HAL_DAC_SetValue(&hdac1, DAC_CHANNEL_1, DAC_ALIGN_8B_R, 0xFF) != HAL_OK)

  {

    /* Setting value Error */

    Error_Handler();

  }



  /*##-1- Enable DAC Channel1 ################################################*/

  if (HAL_DAC_Start(&hdac1, DAC_CHANNEL_1) != HAL_OK)

  {

    /* Start Error */

    Error_Handler();

  }



  /*##########################################################################*/

  /*## LOW POWER MODE ########################################################*/



  /* Wait UserButtonStatus pushed */

  while (UserButtonStatus == 0)

  {

  }

  UserButtonStatus = 0;





  if (HAL_DAC_Stop(&hdac1, DAC_CHANNEL_1) != HAL_OK)

  {

    /* Start Error */

    Error_Handler();

  }



  /*## DeInit the DAC peripheral ##########################################*/

  if (HAL_DAC_DeInit(&hdac1) != HAL_OK)

  {

    /* Initialization Error */

    Error_Handler();

  }



  /*## Configure the DAC peripheral #######################################*/

  if (HAL_DAC_Init(&hdac1) != HAL_OK)

  {

    /* Initialization Error */

    Error_Handler();

  }



  /*## Configure DAC channel1 #############################################*/

  sConfig.DAC_SampleAndHold = DAC_SAMPLEANDHOLD_ENABLE;



  if (HAL_DAC_ConfigChannel(&hdac1, &sConfig, DAC_CHANNEL_1) != HAL_OK)

  {

    /* Channel configuration Error */

    Error_Handler();

  }



  /*## Set DAC Channel1 DHR register ######################################*/

  if (HAL_DAC_SetValue(&hdac1, DAC_CHANNEL_1, DAC_ALIGN_8B_R, 0xFF) != HAL_OK)

  {

    /* Setting value Error */

    Error_Handler();

  }



  /*## Enable DAC Channel1 ################################################*/

  if (HAL_DAC_Start(&hdac1, DAC_CHANNEL_1) != HAL_OK)

  {

    /* Start Error */

    Error_Handler();

  }



  /*Suspend Tick increment to prevent wakeup by Systick interrupt. 

  Otherwise the Systick interrupt will wake up the device within 1ms (HAL time base)*/

  HAL_SuspendTick();



  /* Enter SLEEP Mode , wake up is done once Key push button is pressed */  

 HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);

  /* USER CODE END 2 */



  /* Infinite loop */

  /* USER CODE BEGIN WHILE */

  while (1)

  {

    /* USER CODE END WHILE */



    /* USER CODE BEGIN 3 */



  }

  /* USER CODE END 3 */

}



/**

  * @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

  */

  if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)

  {

    Error_Handler();

  }



  /** Initializes the CPU, AHB and APB busses clocks

  */

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI

                              |RCC_OSCILLATORTYPE_MSI;

  RCC_OscInitStruct.HSIState = RCC_HSI_ON;

  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;

  RCC_OscInitStruct.LSIState = RCC_LSI_ON;

  RCC_OscInitStruct.MSIState = RCC_MSI_ON;

  RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;

  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_4;

  RCC_OscInitStruct.LSIDiv = RCC_LSI_DIV1;

  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;

  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;

  RCC_OscInitStruct.PLL.PLLMBOOST = RCC_PLLMBOOST_DIV1;

  RCC_OscInitStruct.PLL.PLLM = 1;

  RCC_OscInitStruct.PLL.PLLN = 80;

  RCC_OscInitStruct.PLL.PLLP = 2;

  RCC_OscInitStruct.PLL.PLLQ = 2;

  RCC_OscInitStruct.PLL.PLLR = 2;

  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLLVCIRANGE_0;

  RCC_OscInitStruct.PLL.PLLFRACN = 0;

  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)

  {

    Error_Handler();

  }



  /** Initializes the CPU, AHB and APB busses clocks

  */

  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK

                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2

                              |RCC_CLOCKTYPE_PCLK3;

  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;

  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;

  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  RCC_ClkInitStruct.APB3CLKDivider = RCC_HCLK_DIV1;



  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)

  {

    Error_Handler();

  }

}



/**

  * @brief Power Configuration

  * @retval None

  */

static void SystemPower_Config(void)

{



  /*

   * Disable the internal Pull-Up in Dead Battery pins of UCPD peripheral

   */

  HAL_PWREx_DisableUCPDDeadBattery();



  /*

   * Switch to SMPS regulator instead of LDO

   */

  if (HAL_PWREx_ConfigSupply(PWR_SMPS_SUPPLY) != HAL_OK)

  {

    Error_Handler();

  }

}



/**

  * @brief DAC1 Initialization Function

  * @param None

  * @retval None

  */

static void MX_DAC1_Init(void)

{



  /* USER CODE BEGIN DAC1_Init 0 */



  /* USER CODE END DAC1_Init 0 */



  DAC_ChannelConfTypeDef sConfig = {0};

  DAC_AutonomousModeConfTypeDef sAutonomousMode = {0};



  /* USER CODE BEGIN DAC1_Init 1 */



  /* USER CODE END DAC1_Init 1 */



  /** DAC Initialization

  */

  hdac1.Instance = DAC1;

  if (HAL_DAC_Init(&hdac1) != HAL_OK)

  {

    Error_Handler();

  }



  /** DAC channel OUT1 config

  */

  sConfig.DAC_HighFrequency = DAC_HIGH_FREQUENCY_INTERFACE_MODE_DISABLE;

  sConfig.DAC_DMADoubleDataMode = DISABLE;

  sConfig.DAC_SignedFormat = DISABLE;

  sConfig.DAC_SampleAndHold = DAC_SAMPLEANDHOLD_ENABLE;

  sConfig.DAC_Trigger = DAC_TRIGGER_NONE;

  sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;

  sConfig.DAC_ConnectOnChipPeripheral = DAC_CHIPCONNECT_EXTERNAL;

  sConfig.DAC_UserTrimming = DAC_TRIMMING_FACTORY;

  sConfig.DAC_SampleAndHoldConfig.DAC_SampleTime = 20;

  sConfig.DAC_SampleAndHoldConfig.DAC_HoldTime = 10;

  sConfig.DAC_SampleAndHoldConfig.DAC_RefreshTime = 5;

  if (HAL_DAC_ConfigChannel(&hdac1, &sConfig, DAC_CHANNEL_1) != HAL_OK)

  {

    Error_Handler();

  }



  /** Configure Autonomous Mode

  */

  sAutonomousMode.AutonomousModeState = DAC_AUTONOMOUS_MODE_DISABLE;

  if (HAL_DACEx_SetConfigAutonomousMode(&hdac1, &sAutonomousMode) != HAL_OK)

  {

    Error_Handler();

  }

  /* USER CODE BEGIN DAC1_Init 2 */



  /* USER CODE END DAC1_Init 2 */



}



/**

  * @brief ICACHE Initialization Function

  * @param None

  * @retval None

  */

static void MX_ICACHE_Init(void)

{



  /* USER CODE BEGIN ICACHE_Init 0 */



  /* USER CODE END ICACHE_Init 0 */



  /* USER CODE BEGIN ICACHE_Init 1 */



  /* USER CODE END ICACHE_Init 1 */



  /** Enable instruction cache in 1-way (direct mapped cache)

  */

  if (HAL_ICACHE_ConfigAssociativityMode(ICACHE_1WAY) != HAL_OK)

  {

    Error_Handler();

  }

  if (HAL_ICACHE_Enable() != HAL_OK)

  {

    Error_Handler();

  }

  /* USER CODE BEGIN ICACHE_Init 2 */



  /* USER CODE END ICACHE_Init 2 */



}



/**

  * @brief GPIO Initialization Function

  * @param None

  * @retval None

  */

static void MX_GPIO_Init(void)

{



  /* GPIO Ports Clock Enable */

  __HAL_RCC_GPIOA_CLK_ENABLE();



}



/* USER CODE BEGIN 4 */

/**

  * @brief  EXTI line detection callbacks

  * @param  GPIO_Pin: Specifies the pins connected EXTI line

  * @retval None

  */

void HAL_GPIO_EXTI_Rising_Callback(uint16_t GPIO_Pin)

{

  if (GPIO_Pin == BUTTON_USER_PIN)

  {

    UserButtonStatus = 1;

  }

}



/* USER CODE END 4 */



/**

  * @brief  This function is executed in case of error occurrence.

  * @retval None

  */

void Error_Handler(void)

{

  /* USER CODE BEGIN Error_Handler_Debug */

  /* Turn LED3 on */

  BSP_LED_On(LED3);

  while(1)

  {

  }

  /* USER CODE END Error_Handler_Debug */

}



#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

  */

void assert_failed(uint8_t *file, uint32_t line)

{

  /* USER CODE BEGIN 6 */

  /* User can add his own implementation to report the file name and line number,

    ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* USER CODE END 6 */

}

#endif /* USE_FULL_ASSERT */