C++ (Cpp) IS_UART_WAKEUP_FROMSTOP_INSTANCE Examples

Example #1

File: stm32f0xx_hal_uart_ex.c Project: DexterLB/builders

/**
  * @brief Initialize the UART wake-up from stop mode parameters when triggered by address detection.
  * @param huart UART handle.
  * @param WakeUpSelection UART wake up from stop mode parameters.
  * @retval None
  */
static void UARTEx_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
{
  /* Check parmeters */
  assert_param(IS_UART_WAKEUP_FROMSTOP_INSTANCE(huart->Instance));
  assert_param(IS_UART_ADDRESSLENGTH_DETECT(WakeUpSelection.AddressLength));

  /* Set the USART address length */
  MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, WakeUpSelection.AddressLength);

  /* Set the USART address node */
  MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)WakeUpSelection.Address << UART_CR2_ADDRESS_LSB_POS));
}

Example #2

/**
  * @brief Set Wakeup from Stop mode interrupt flag selection.
  * @param huart: UART handle.
  * @param WakeUpSelection: address match, Start Bit detection or RXNE bit status.
  * This parameter can be one of the following values:
  *      @arg @ref UART_WAKEUP_ON_ADDRESS
  *      @arg @ref UART_WAKEUP_ON_STARTBIT
  *      @arg @ref UART_WAKEUP_ON_READDATA_NONEMPTY
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_UARTEx_StopModeWakeUpSourceConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
{
  HAL_StatusTypeDef status = HAL_OK;
  uint32_t tickstart = 0;

  /* check the wake-up from stop mode UART instance */
  assert_param(IS_UART_WAKEUP_FROMSTOP_INSTANCE(huart->Instance));
  /* check the wake-up selection parameter */
  assert_param(IS_UART_WAKEUP_SELECTION(WakeUpSelection.WakeUpEvent));

  /* Process Locked */
  __HAL_LOCK(huart);

  huart->gState = HAL_UART_STATE_BUSY;

  /* Disable the Peripheral */
  __HAL_UART_DISABLE(huart);

  /* Set the wake-up selection scheme */
  MODIFY_REG(huart->Instance->CR3, USART_CR3_WUS, WakeUpSelection.WakeUpEvent);

  if (WakeUpSelection.WakeUpEvent == UART_WAKEUP_ON_ADDRESS)
  {
    UARTEx_Wakeup_AddressConfig(huart, WakeUpSelection);
  }

  /* Enable the Peripheral */
  __HAL_UART_ENABLE(huart);

  /* Init tickstart for timeout managment*/
  tickstart = HAL_GetTick();

  /* Wait until REACK flag is set */
  if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, tickstart, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
  {
    status = HAL_TIMEOUT;
  }
  else
  {
    /* Initialize the UART State */
    huart->gState = HAL_UART_STATE_READY;
  }

  /* Process Unlocked */
  __HAL_UNLOCK(huart);

  return status;
}

Example #3

File: stm32l0xx_hal_uart_ex.c Project: atynecki/NFC_PROGRAMMER

/**
  * @brief Set Wakeup from Stop mode interrupt flag selection
  * @param huart: uart handle, 
  * @param WakeUpSelection: address match, Start Bit detection or RXNE bit status.
  * This parameter can be one of the following values:
  *      @arg UART_WAKEUP_ON_ADDRESS
  *      @arg UART_WAKEUP_ON_STARTBIT
  *      @arg UART_WAKEUP_ON_READDATA_NONEMPTY
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_UARTEx_StopModeWakeUpSourceConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
{

  /* check the wake-up from stop mode UART instance */
  assert_param(IS_UART_WAKEUP_FROMSTOP_INSTANCE(huart->Instance));
  /* Check the wake-up selection parameter */
  assert_param(IS_UART_WAKEUP_SELECTION(WakeUpSelection.WakeUpEvent));

  /* Process Locked */
  __HAL_LOCK(huart);

  huart->State = HAL_UART_STATE_BUSY;

  /* Disable the Peripheral */
  __HAL_UART_DISABLE(huart);

  /* Set the wake-up selection scheme */
  MODIFY_REG(huart->Instance->CR3, USART_CR3_WUS, WakeUpSelection.WakeUpEvent);

  if(WakeUpSelection.WakeUpEvent == UART_WAKEUP_ON_ADDRESS)
  {
    UART_Wakeup_AddressConfig(huart, WakeUpSelection);
  }

  /* Enable the Peripheral */
  __HAL_UART_ENABLE(huart);

  /* Wait until REACK flag is set before moving huart->State to Ready */
  if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, UART_REACK_TIMEOUT) != HAL_OK)
  {
    return HAL_TIMEOUT;
  }

  /* Process Unlocked */
  __HAL_UNLOCK(huart);

  /* Initialize the UART state*/
  huart->ErrorCode = HAL_UART_ERROR_NONE;
  huart->State= HAL_UART_STATE_READY;

  return HAL_OK;
}

Example #4

File: stm32f0xx_hal_uart_ex.c Project: DexterLB/builders

/**
  * @brief Disable UART Stop Mode.
  * @param huart UART handle.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_UARTEx_DisableStopMode(UART_HandleTypeDef *huart)
{
  /* Check parameter */
  assert_param(IS_UART_WAKEUP_FROMSTOP_INSTANCE(huart->Instance));

  /* Process Locked */
  __HAL_LOCK(huart);

  huart->gState = HAL_UART_STATE_BUSY;

  /* Clear UESM bit */
  CLEAR_BIT(huart->Instance->CR1, USART_CR1_UESM);

  huart->gState = HAL_UART_STATE_READY;

  /* Process Unlocked */
  __HAL_UNLOCK(huart);

  return HAL_OK;
}