示例#1
0
/**
  * @brief DAC MSP Initialization
  *        This function configures the hardware resources used in this example:
  *           - Peripheral's clock enable
  *           - Peripheral's GPIO Configuration
  * @param hdac: DAC handle pointer
  * @retval None
  */
void HAL_DAC_MspInit(DAC_HandleTypeDef *hdac)
{
  GPIO_InitTypeDef          GPIO_InitStruct;

  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO clock */
  DACx_CHANNEL_GPIO_CLK_ENABLE();
  /* DAC Periph clock enable */
  DACx_CLK_ENABLE();

  /*##-2- Configure peripheral GPIO ##########################################*/
  /* DAC Channel1 GPIO pin configuration */
  GPIO_InitStruct.Pin = DACx_CHANNEL_TO_ADCx_CHANNEL_DIFF_HIGH_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(DACx_CHANNEL_TO_ADCx_CHANNEL_DIFF_HIGH_GPIO_PORT, &GPIO_InitStruct);
  
  /* DAC Channel2 GPIO pin configuration */
  GPIO_InitStruct.Pin = DACx_CHANNEL_TO_ADCx_CHANNEL_DIFF_LOW_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(DACx_CHANNEL_TO_ADCx_CHANNEL_DIFF_LOW_GPIO_PORT, &GPIO_InitStruct);
  
  /*##-3- Configure the NVIC #################################################*/
  /* NVIC configuration for DAC interrupt */
  /* Priority: mid-priority */
  HAL_NVIC_SetPriority(TIM6_DAC_IRQn, 3, 0);
  HAL_NVIC_EnableIRQ(TIM6_DAC_IRQn);
  
}
示例#2
0
/**
  * @brief DAC MSP Initialization 
  *        This function configures the hardware resources used in this example: 
  *           - Peripheral's clock enable
  *           - Peripheral's GPIO Configuration
  * @param hdac: DAC handle pointer
  * @retval None
  */
void HAL_DAC_MspInit(DAC_HandleTypeDef *hdac)
{
  GPIO_InitTypeDef          GPIO_InitStruct;
  static DMA_HandleTypeDef  hdma_dac1;

  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO clock ****************************************/
  DACx_CHANNEL_GPIO_CLK_ENABLE();
  /* DAC Periph clock enable */
  DACx_CLK_ENABLE();
  /* DMA1 clock enable */
  DMAx_CLK_ENABLE();
  /* SYSCFG clock enable for DMA remapping */
  __SYSCFG_CLK_ENABLE();

  /*##-2- Configure peripheral GPIO ##########################################*/
  /* DAC Channel1 GPIO pin configuration */
  GPIO_InitStruct.Pin = DACx_CHANNEL_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(DACx_CHANNEL_GPIO_PORT, &GPIO_InitStruct);

  /*##-3- Configure the DMA ##########################################*/
  /* Set the parameters to be configured for DACx_DMA1_CHANNEL3 */
  hdma_dac1.Instance = DACx_DMA_INSTANCE;

  hdma_dac1.Init.Direction = DMA_MEMORY_TO_PERIPH;
  hdma_dac1.Init.PeriphInc = DMA_PINC_DISABLE;
  hdma_dac1.Init.MemInc = DMA_MINC_ENABLE;
  hdma_dac1.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  hdma_dac1.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
  hdma_dac1.Init.Mode = DMA_CIRCULAR;
  hdma_dac1.Init.Priority = DMA_PRIORITY_HIGH;

  HAL_DMA_Init(&hdma_dac1);

  /* Associate the initialized DMA handle to the the DAC handle */
  __HAL_LINKDMA(hdac, DMA_Handle1, hdma_dac1);

  /*##-4- Configure the NVIC for DMA #########################################*/
  /* Enable the DMA1_Channel3 IRQ Channel */
  HAL_NVIC_SetPriority(DACx_DMA_IRQn, 2, 0);
  HAL_NVIC_EnableIRQ(DACx_DMA_IRQn);

  /*##-5- Configure the SYSCFG for DMA remapping #############################*/
  __HAL_REMAPDMA_CHANNEL_ENABLE(HAL_REMAPDMA_TIM6_DAC1_CH1_DMA1_CH3);
}
示例#3
0
/**
  * @brief DAC MSP Initialization 
  *        This function configures the hardware resources used in this example: 
  *           - Peripheral's clock enable
  *           - Peripheral's GPIO Configuration  
  * @param hdac: DAC handle pointer
  * @retval None
  */
void HAL_DAC_MspInit(DAC_HandleTypeDef* hdac)
{
  GPIO_InitTypeDef          GPIO_InitStruct;
  
  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO clock ****************************************/
  DACx_CHANNEL_GPIO_CLK_ENABLE();
  /* DAC Periph clock enable */
  DACx_CLK_ENABLE();
    
  /*##-2- Configure peripheral GPIO ##########################################*/ 
  /* DAC Channel1 GPIO pin configuration */
  GPIO_InitStruct.Pin = DACx_CHANNEL_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(DACx_CHANNEL_GPIO_PORT, &GPIO_InitStruct);
}