/*
 * dac.c
 *
 *  Created on: Apr 13, 2022
 *      Author: bruce
 */

#include "dac.h"
#include "main.h"
#include "stm32l4xx.h"

DAC_HandleTypeDef hdac1;

/**
* @brief DAC MSP Initialization
* This function configures the hardware resources used in this example
* @param hdac: DAC handle pointer
* @retval None
*/
void HAL_DAC_MspInit(DAC_HandleTypeDef* hdac)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(hdac->Instance==DAC1)
  {
    __HAL_RCC_DAC1_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    GPIO_InitStruct.Pin = GPIO_PIN_4;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  }

}

/**
* @brief DAC MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param hdac: DAC handle pointer
* @retval None
*/
void HAL_DAC_MspDeInit(DAC_HandleTypeDef* hdac)
{
  if(hdac->Instance==DAC1)
  {
    __HAL_RCC_DAC1_CLK_DISABLE();
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_4);
  }

}

void DAC_Init () {
	DAC_ChannelConfTypeDef sConfig = {0};

  /** DAC Initialization
  */
  hdac1.Instance = DAC1;
  if (HAL_DAC_Init(&hdac1) != HAL_OK)
  {
    Error_Handler();
  }

  /** DAC channel OUT1 config
  */
  sConfig.DAC_SampleAndHold = DAC_SAMPLEANDHOLD_DISABLE;
  sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
  sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
  sConfig.DAC_ConnectOnChipPeripheral = DAC_CHIPCONNECT_DISABLE;
  sConfig.DAC_UserTrimming = DAC_TRIMMING_FACTORY;

  if (HAL_DAC_ConfigChannel(&hdac1, &sConfig, DAC_CHANNEL_1) != HAL_OK)
  {
    Error_Handler();
  }
}

void DAC_Start () {
	HAL_DAC_Start (&hdac1, DAC_CHANNEL_1);
}

void DAC_Set_Value (uint32_t value) {
	HAL_DAC_SetValue (&hdac1, DAC_CHANNEL_1, DAC_ALIGN_12B_R, value);
}