C++ (Cpp) IS_UART_LIN_INSTANCE Examples

Example #1

File: uart_stm32.c Project: loicpoulain/zephyr

static void uart_stm32_irq_err_disable(struct device *dev)
{
	USART_TypeDef *UartInstance = UART_STRUCT(dev);

	/* Disable FE, ORE interruptions */
	LL_USART_DisableIT_ERROR(UartInstance);
#if !defined(CONFIG_SOC_SERIES_STM32F0X) || defined(USART_LIN_SUPPORT)
	/* Disable Line break detection */
	if (IS_UART_LIN_INSTANCE(UartInstance)) {
		LL_USART_DisableIT_LBD(UartInstance);
	}
#endif
	/* Disable parity error interruption */
	LL_USART_DisableIT_PE(UartInstance);
}

Example #2

File: stm32f0xx_hal_uart_ex.c Project: DexterLB/builders

/**
  * @brief  Transmit break characters.
  * @param  huart UART handle.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart)
{
  /* Check the parameters */
  assert_param(IS_UART_LIN_INSTANCE(huart->Instance));

  /* Process Locked */
  __HAL_LOCK(huart);

  huart->gState = HAL_UART_STATE_BUSY;

  /* Send break characters */
  huart->Instance->RQR |= UART_SENDBREAK_REQUEST;

  huart->gState = HAL_UART_STATE_READY;

  /* Process Unlocked */
  __HAL_UNLOCK(huart);

  return HAL_OK;
}

Example #3

File: stm32f0xx_hal_uart_ex.c Project: DexterLB/builders

/**
  * @brief Initialize the LIN mode according to the specified
  *        parameters in the UART_InitTypeDef and creates the associated handle .
  * @param huart UART handle.
  * @param BreakDetectLength specifies the LIN break detection length.
  *        This parameter can be one of the following values:
  *          @arg @ref UART_LINBREAKDETECTLENGTH_10B 10-bit break detection
  *          @arg @ref UART_LINBREAKDETECTLENGTH_11B 11-bit break detection
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength)
{
  /* Check the UART handle allocation */
  if(huart == NULL)
  {
    return HAL_ERROR;
  }

  /* Check the LIN UART instance */
  assert_param(IS_UART_LIN_INSTANCE(huart->Instance));
  /* Check the Break detection length parameter */
  assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength));

  /* LIN mode limited to 16-bit oversampling only */
  if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
  {
    return HAL_ERROR;
  }
  /* LIN mode limited to 8-bit data length */
  if(huart->Init.WordLength != UART_WORDLENGTH_8B)
  {
    return HAL_ERROR;
  }

  if(huart->gState == HAL_UART_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    huart->Lock = HAL_UNLOCKED;

    /* Init the low level hardware : GPIO, CLOCK */
    HAL_UART_MspInit(huart);
  }

  huart->gState = HAL_UART_STATE_BUSY;

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

  /* Set the UART Communication parameters */
  if (UART_SetConfig(huart) == HAL_ERROR)
  {
    return HAL_ERROR;
  }

  if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
  {
    UART_AdvFeatureConfig(huart);
  }

  /* In LIN mode, the following bits must be kept cleared:
  - LINEN and CLKEN bits in the USART_CR2 register,
  - SCEN and IREN bits in the USART_CR3 register.*/
  CLEAR_BIT(huart->Instance->CR2, USART_CR2_CLKEN);
  CLEAR_BIT(huart->Instance->CR3, (USART_CR3_HDSEL | USART_CR3_IREN | USART_CR3_SCEN));

  /* Enable the LIN mode by setting the LINEN bit in the CR2 register */
  SET_BIT(huart->Instance->CR2, USART_CR2_LINEN);

  /* Set the USART LIN Break detection length. */
  MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength);

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

  /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */
  return (UART_CheckIdleState(huart));
}