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Diff: TARGET_DISCO_L476VG/stm32l4xx_hal_usart.h
- Revision:
- 107:4f6c30876dfa
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_DISCO_L476VG/stm32l4xx_hal_usart.h Wed Sep 16 15:32:31 2015 +0100
@@ -0,0 +1,788 @@
+/**
+ ******************************************************************************
+ * @file stm32l4xx_hal_usart.h
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 26-June-2015
+ * @brief Header file of USART HAL module.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32L4xx_HAL_USART_H
+#define __STM32L4xx_HAL_USART_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32l4xx_hal_def.h"
+
+/** @addtogroup STM32L4xx_HAL_Driver
+ * @{
+ */
+
+/** @addtogroup USART
+ * @{
+ */
+
+/* Exported types ------------------------------------------------------------*/
+/** @defgroup USART_Exported_Types USART Exported Types
+ * @{
+ */
+
+/**
+ * @brief USART Init Structure definition
+ */
+typedef struct
+{
+ uint32_t BaudRate; /*!< This member configures the Usart communication baud rate.
+ The baud rate is computed using the following formula:
+ Baud Rate Register = ((PCLKx) / ((huart->Init.BaudRate))). */
+
+ uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received in a frame.
+ This parameter can be a value of @ref USARTEx_Word_Length. */
+
+ uint32_t StopBits; /*!< Specifies the number of stop bits transmitted.
+ This parameter can be a value of @ref USART_Stop_Bits. */
+
+ uint32_t Parity; /*!< Specifies the parity mode.
+ This parameter can be a value of @ref USART_Parity
+ @note When parity is enabled, the computed parity is inserted
+ at the MSB position of the transmitted data (9th bit when
+ the word length is set to 9 data bits; 8th bit when the
+ word length is set to 8 data bits). */
+
+ uint32_t Mode; /*!< Specifies whether the Receive or Transmit mode is enabled or disabled.
+ This parameter can be a value of @ref USART_Mode. */
+
+ uint32_t CLKPolarity; /*!< Specifies the steady state of the serial clock.
+ This parameter can be a value of @ref USART_Clock_Polarity. */
+
+ uint32_t CLKPhase; /*!< Specifies the clock transition on which the bit capture is made.
+ This parameter can be a value of @ref USART_Clock_Phase. */
+
+ uint32_t CLKLastBit; /*!< Specifies whether the clock pulse corresponding to the last transmitted
+ data bit (MSB) has to be output on the SCLK pin in synchronous mode.
+ This parameter can be a value of @ref USART_Last_Bit. */
+}USART_InitTypeDef;
+
+/**
+ * @brief HAL USART State structures definition
+ */
+typedef enum
+{
+ HAL_USART_STATE_RESET = 0x00, /*!< Peripheral is not initialized */
+ HAL_USART_STATE_READY = 0x01, /*!< Peripheral Initialized and ready for use */
+ HAL_USART_STATE_BUSY = 0x02, /*!< an internal process is ongoing */
+ HAL_USART_STATE_BUSY_TX = 0x12, /*!< Data Transmission process is ongoing */
+ HAL_USART_STATE_BUSY_RX = 0x22, /*!< Data Reception process is ongoing */
+ HAL_USART_STATE_BUSY_TX_RX = 0x32, /*!< Data Transmission Reception process is ongoing */
+ HAL_USART_STATE_TIMEOUT = 0x03, /*!< Timeout state */
+ HAL_USART_STATE_ERROR = 0x04 /*!< Error */
+}HAL_USART_StateTypeDef;
+
+/**
+ * @brief HAL USART Error Code structure definition
+ */
+typedef enum
+{
+ HAL_USART_ERROR_NONE = 0x00, /*!< No error */
+ HAL_USART_ERROR_PE = 0x01, /*!< Parity error */
+ HAL_USART_ERROR_NE = 0x02, /*!< Noise error */
+ HAL_USART_ERROR_FE = 0x04, /*!< frame error */
+ HAL_USART_ERROR_ORE = 0x08, /*!< Overrun error */
+ HAL_USART_ERROR_DMA = 0x10 /*!< DMA transfer error */
+}HAL_USART_ErrorTypeDef;
+
+/**
+ * @brief USART clock sources definitions
+ */
+typedef enum
+{
+ USART_CLOCKSOURCE_PCLK1 = 0x00, /*!< PCLK1 clock source */
+ USART_CLOCKSOURCE_PCLK2 = 0x01, /*!< PCLK2 clock source */
+ USART_CLOCKSOURCE_HSI = 0x02, /*!< HSI clock source */
+ USART_CLOCKSOURCE_SYSCLK = 0x04, /*!< SYSCLK clock source */
+ USART_CLOCKSOURCE_LSE = 0x08, /*!< LSE clock source */
+ USART_CLOCKSOURCE_UNDEFINED = 0x10 /*!< Undefined clock source */
+}USART_ClockSourceTypeDef;
+
+
+/**
+ * @brief USART handle Structure definition
+ */
+typedef struct
+{
+ USART_TypeDef *Instance; /*!< USART registers base address */
+
+ USART_InitTypeDef Init; /*!< USART communication parameters */
+
+ uint8_t *pTxBuffPtr; /*!< Pointer to USART Tx transfer Buffer */
+
+ uint16_t TxXferSize; /*!< USART Tx Transfer size */
+
+ uint16_t TxXferCount; /*!< USART Tx Transfer Counter */
+
+ uint8_t *pRxBuffPtr; /*!< Pointer to USART Rx transfer Buffer */
+
+ uint16_t RxXferSize; /*!< USART Rx Transfer size */
+
+ uint16_t RxXferCount; /*!< USART Rx Transfer Counter */
+
+ uint16_t Mask; /*!< USART Rx RDR register mask */
+
+ DMA_HandleTypeDef *hdmatx; /*!< USART Tx DMA Handle parameters */
+
+ DMA_HandleTypeDef *hdmarx; /*!< USART Rx DMA Handle parameters */
+
+ HAL_LockTypeDef Lock; /*!< Locking object */
+
+ __IO HAL_USART_StateTypeDef State; /*!< USART communication state */
+
+ __IO uint32_t ErrorCode; /*!< USART Error code */
+
+}USART_HandleTypeDef;
+
+/**
+ * @}
+ */
+
+/* Exported constants --------------------------------------------------------*/
+/** @defgroup USART_Exported_Constants USART Exported Constants
+ * @{
+ */
+
+/** @defgroup USART_Stop_Bits USART Number of Stop Bits
+ * @{
+ */
+#define USART_STOPBITS_1 ((uint32_t)0x00000000) /*!< USART frame with 1 stop bit */
+#define USART_STOPBITS_1_5 ((uint32_t)(USART_CR2_STOP_0 | USART_CR2_STOP_1)) /*!< USART frame with 1.5 stop bits */
+#define USART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1) /*!< USART frame with 2 stop bits */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Parity USART Parity
+ * @{
+ */
+#define USART_PARITY_NONE ((uint32_t)0x00000000) /*!< No parity */
+#define USART_PARITY_EVEN ((uint32_t)USART_CR1_PCE) /*!< Even parity */
+#define USART_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS)) /*!< Odd parity */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Mode USART Mode
+ * @{
+ */
+#define USART_MODE_RX ((uint32_t)USART_CR1_RE) /*!< RX mode */
+#define USART_MODE_TX ((uint32_t)USART_CR1_TE) /*!< TX mode */
+#define USART_MODE_TX_RX ((uint32_t)(USART_CR1_TE |USART_CR1_RE)) /*!< RX and TX mode */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Over_Sampling USART Over Sampling
+ * @{
+ */
+#define USART_OVERSAMPLING_16 ((uint32_t)0x00000000) /*!< Oversampling by 16 */
+#define USART_OVERSAMPLING_8 ((uint32_t)USART_CR1_OVER8) /*!< Oversampling by 8 */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Clock USART Clock
+ * @{
+ */
+#define USART_CLOCK_DISABLE ((uint32_t)0x00000000) /*!< USART clock disable */
+#define USART_CLOCK_ENABLE ((uint32_t)USART_CR2_CLKEN) /*!< USART clock enable */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Clock_Polarity USART Clock Polarity
+ * @{
+ */
+#define USART_POLARITY_LOW ((uint32_t)0x00000000) /*!< Driver enable signal is active high */
+#define USART_POLARITY_HIGH ((uint32_t)USART_CR2_CPOL) /*!< Driver enable signal is active low */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Clock_Phase USART Clock Phase
+ * @{
+ */
+#define USART_PHASE_1EDGE ((uint32_t)0x00000000) /*!< USART frame phase on first clock transition */
+#define USART_PHASE_2EDGE ((uint32_t)USART_CR2_CPHA) /*!< USART frame phase on second clock transition */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Last_Bit USART Last Bit
+ * @{
+ */
+#define USART_LASTBIT_DISABLE ((uint32_t)0x00000000) /*!< USART frame last data bit clock pulse not output to SCLK pin */
+#define USART_LASTBIT_ENABLE ((uint32_t)USART_CR2_LBCL) /*!< USART frame last data bit clock pulse output to SCLK pin */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Request_Parameters USART Request Parameters
+ * @{
+ */
+#define USART_RXDATA_FLUSH_REQUEST ((uint32_t)USART_RQR_RXFRQ) /*!< Receive Data flush Request */
+#define USART_TXDATA_FLUSH_REQUEST ((uint32_t)USART_RQR_TXFRQ) /*!< Transmit data flush Request */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Flags USART Flags
+ * Elements values convention: 0xXXXX
+ * - 0xXXXX : Flag mask in the ISR register
+ * @{
+ */
+#define USART_FLAG_REACK ((uint32_t)0x00400000) /*!< USART receive enable acknowledge flag */
+#define USART_FLAG_TEACK ((uint32_t)0x00200000) /*!< USART transmit enable acknowledge flag */
+#define USART_FLAG_BUSY ((uint32_t)0x00010000) /*!< USART busy flag */
+#define USART_FLAG_CTS ((uint32_t)0x00000400) /*!< USART clear to send flag */
+#define USART_FLAG_CTSIF ((uint32_t)0x00000200) /*!< USART clear to send interrupt flag */
+#define USART_FLAG_LBDF ((uint32_t)0x00000100) /*!< USART LIN break detection flag */
+#define USART_FLAG_TXE ((uint32_t)0x00000080) /*!< USART transmit data register empty */
+#define USART_FLAG_TC ((uint32_t)0x00000040) /*!< USART transmission complete */
+#define USART_FLAG_RXNE ((uint32_t)0x00000020) /*!< USART read data register not empty */
+#define USART_FLAG_IDLE ((uint32_t)0x00000010) /*!< USART idle flag */
+#define USART_FLAG_ORE ((uint32_t)0x00000008) /*!< USART overrun error */
+#define USART_FLAG_NE ((uint32_t)0x00000004) /*!< USART noise error */
+#define USART_FLAG_FE ((uint32_t)0x00000002) /*!< USART frame error */
+#define USART_FLAG_PE ((uint32_t)0x00000001) /*!< USART parity error */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Interrupt_definition USART Interrupts Definition
+ * Elements values convention: 0000ZZZZ0XXYYYYYb
+ * - YYYYY : Interrupt source position in the XX register (5bits)
+ * - XX : Interrupt source register (2bits)
+ * - 01: CR1 register
+ * - 10: CR2 register
+ * - 11: CR3 register
+ * - ZZZZ : Flag position in the ISR register(4bits)
+ * @{
+ */
+
+#define USART_IT_PE ((uint16_t)0x0028) /*!< USART parity error interruption */
+#define USART_IT_TXE ((uint16_t)0x0727) /*!< USART transmit data register empty interruption */
+#define USART_IT_TC ((uint16_t)0x0626) /*!< USART transmission complete interruption */
+#define USART_IT_RXNE ((uint16_t)0x0525) /*!< USART read data register not empty interruption */
+#define USART_IT_IDLE ((uint16_t)0x0424) /*!< USART idle interruption */
+#define USART_IT_ERR ((uint16_t)0x0060) /*!< USART error interruption */
+#define USART_IT_ORE ((uint16_t)0x0300) /*!< USART overrun error interruption */
+#define USART_IT_NE ((uint16_t)0x0200) /*!< USART noise error interruption */
+#define USART_IT_FE ((uint16_t)0x0100) /*!< USART frame error interruption */
+/**
+ * @}
+ */
+
+/** @defgroup USART_IT_CLEAR_Flags USART Interruption Clear Flags
+ * @{
+ */
+#define USART_CLEAR_PEF USART_ICR_PECF /*!< Parity Error Clear Flag */
+#define USART_CLEAR_FEF USART_ICR_FECF /*!< Framing Error Clear Flag */
+#define USART_CLEAR_NEF USART_ICR_NCF /*!< Noise detected Clear Flag */
+#define USART_CLEAR_OREF USART_ICR_ORECF /*!< OverRun Error Clear Flag */
+#define USART_CLEAR_IDLEF USART_ICR_IDLECF /*!< IDLE line detected Clear Flag */
+#define USART_CLEAR_TCF USART_ICR_TCCF /*!< Transmission Complete Clear Flag */
+#define USART_CLEAR_CTSF USART_ICR_CTSCF /*!< CTS Interrupt Clear Flag */
+/**
+ * @}
+ */
+
+/** @defgroup USART_Interruption_Mask USART Interruption Flags Mask
+ * @{
+ */
+#define USART_IT_MASK ((uint16_t)0x001F) /*!< USART interruptions flags mask */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/* Exported macros -----------------------------------------------------------*/
+/** @defgroup USART_Exported_Macros USART Exported Macros
+ * @{
+ */
+
+/** @brief Reset USART handle state.
+ * @param __HANDLE__: USART handle.
+ * @retval None
+ */
+#define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_USART_STATE_RESET)
+
+/** @brief Check whether the specified USART flag is set or not.
+ * @param __HANDLE__: specifies the USART Handle
+ * @param __FLAG__: specifies the flag to check.
+ * This parameter can be one of the following values:
+ * @arg USART_FLAG_REACK: Receive enable acknowledge flag
+ * @arg USART_FLAG_TEACK: Transmit enable acknowledge flag
+ * @arg USART_FLAG_BUSY: Busy flag
+ * @arg USART_FLAG_CTS: CTS Change flag
+ * @arg USART_FLAG_TXE: Transmit data register empty flag
+ * @arg USART_FLAG_TC: Transmission Complete flag
+ * @arg USART_FLAG_RXNE: Receive data register not empty flag
+ * @arg USART_FLAG_IDLE: Idle Line detection flag
+ * @arg USART_FLAG_ORE: OverRun Error flag
+ * @arg USART_FLAG_NE: Noise Error flag
+ * @arg USART_FLAG_FE: Framing Error flag
+ * @arg USART_FLAG_PE: Parity Error flag
+ * @retval The new state of __FLAG__ (TRUE or FALSE).
+ */
+#define __HAL_USART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->ISR & (__FLAG__)) == (__FLAG__))
+
+/** @brief Clear the specified USART pending flag.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @param __FLAG__: specifies the flag to check.
+ * This parameter can be any combination of the following values:
+ * @arg USART_CLEAR_PEF
+ * @arg USART_CLEAR_FEF
+ * @arg USART_CLEAR_NEF
+ * @arg USART_CLEAR_OREF
+ * @arg USART_CLEAR_IDLEF
+ * @arg USART_CLEAR_TCF
+ * @arg USART_CLEAR_LBDF
+ * @arg USART_CLEAR_CTSF
+ * @arg USART_CLEAR_RTOF
+ * @arg USART_CLEAR_EOBF
+ * @arg USART_CLEAR_CMF
+ * @arg USART_CLEAR_WUF
+ * @retval None
+ */
+#define __HAL_USART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->ICR = (__FLAG__))
+
+/** @brief Clear the USART PE pending flag.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @retval None
+ */
+#define __HAL_USART_CLEAR_PEFLAG(__HANDLE__) __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_PEF)
+
+/** @brief Clear the USART FE pending flag.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @retval None
+ */
+#define __HAL_USART_CLEAR_FEFLAG(__HANDLE__) __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_FEF)
+
+/** @brief Clear the USART NE pending flag.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @retval None
+ */
+#define __HAL_USART_CLEAR_NEFLAG(__HANDLE__) __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_NEF)
+
+/** @brief Clear the USART ORE pending flag.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @retval None
+ */
+#define __HAL_USART_CLEAR_OREFLAG(__HANDLE__) __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_OREF)
+
+/** @brief Clear the USART IDLE pending flag.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @retval None
+ */
+#define __HAL_USART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_IDLEF)
+
+/** @brief Enable the specified USART interrupt.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @param __INTERRUPT__: specifies the USART interrupt source to enable.
+ * This parameter can be one of the following values:
+ * @arg USART_IT_TXE: Transmit Data Register empty interrupt
+ * @arg USART_IT_TC: Transmission complete interrupt
+ * @arg USART_IT_RXNE: Receive Data register not empty interrupt
+ * @arg USART_IT_IDLE: Idle line detection interrupt
+ * @arg USART_IT_PE: Parity Error interrupt
+ * @arg USART_IT_ERR: Error interrupt(Frame error, noise error, overrun error)
+ * @retval None
+ */
+#define __HAL_USART_ENABLE_IT(__HANDLE__, __INTERRUPT__) (((((uint8_t)(__INTERRUPT__)) >> 5U) == 1)? ((__HANDLE__)->Instance->CR1 |= (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
+ ((((uint8_t)(__INTERRUPT__)) >> 5U) == 2)? ((__HANDLE__)->Instance->CR2 |= (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
+ ((__HANDLE__)->Instance->CR3 |= (1U << ((__INTERRUPT__) & USART_IT_MASK))))
+
+/** @brief Disable the specified USART interrupt.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @param __INTERRUPT__: specifies the USART interrupt source to disable.
+ * This parameter can be one of the following values:
+ * @arg USART_IT_TXE: Transmit Data Register empty interrupt
+ * @arg USART_IT_TC: Transmission complete interrupt
+ * @arg USART_IT_RXNE: Receive Data register not empty interrupt
+ * @arg USART_IT_IDLE: Idle line detection interrupt
+ * @arg USART_IT_PE: Parity Error interrupt
+ * @arg USART_IT_ERR: Error interrupt(Frame error, noise error, overrun error)
+ * @retval None
+ */
+#define __HAL_USART_DISABLE_IT(__HANDLE__, __INTERRUPT__) (((((uint8_t)(__INTERRUPT__)) >> 5U) == 1)? ((__HANDLE__)->Instance->CR1 &= ~ (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
+ ((((uint8_t)(__INTERRUPT__)) >> 5U) == 2)? ((__HANDLE__)->Instance->CR2 &= ~ (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
+ ((__HANDLE__)->Instance->CR3 &= ~ (1U << ((__INTERRUPT__) & USART_IT_MASK))))
+
+
+/** @brief Check whether the specified USART interrupt has occurred or not.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @param __IT__: specifies the USART interrupt source to check.
+ * This parameter can be one of the following values:
+ * @arg USART_IT_TXE: Transmit Data Register empty interrupt
+ * @arg USART_IT_TC: Transmission complete interrupt
+ * @arg USART_IT_RXNE: Receive Data register not empty interrupt
+ * @arg USART_IT_IDLE: Idle line detection interrupt
+ * @arg USART_IT_ORE: OverRun Error interrupt
+ * @arg USART_IT_NE: Noise Error interrupt
+ * @arg USART_IT_FE: Framing Error interrupt
+ * @arg USART_IT_PE: Parity Error interrupt
+ * @retval The new state of __IT__ (TRUE or FALSE).
+ */
+#define __HAL_USART_GET_IT(__HANDLE__, __IT__) ((__HANDLE__)->Instance->ISR & ((uint32_t)1 << ((__IT__)>> 0x08)))
+
+/** @brief Check whether the specified USART interrupt source is enabled or not.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @param __IT__: specifies the USART interrupt source to check.
+ * This parameter can be one of the following values:
+ * @arg USART_IT_TXE: Transmit Data Register empty interrupt
+ * @arg USART_IT_TC: Transmission complete interrupt
+ * @arg USART_IT_RXNE: Receive Data register not empty interrupt
+ * @arg USART_IT_IDLE: Idle line detection interrupt
+ * @arg USART_IT_ORE: OverRun Error interrupt
+ * @arg USART_IT_NE: Noise Error interrupt
+ * @arg USART_IT_FE: Framing Error interrupt
+ * @arg USART_IT_PE: Parity Error interrupt
+ * @retval The new state of __IT__ (TRUE or FALSE).
+ */
+#define __HAL_USART_GET_IT_SOURCE(__HANDLE__, __IT__) ((((((uint8_t)(__IT__)) >> 5) == 1)? (__HANDLE__)->Instance->CR1:(((((uint8_t)(__IT__)) >> 5) == 2)? \
+ (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & ((uint32_t)1 << \
+ (((uint16_t)(__IT__)) & USART_IT_MASK)))
+
+
+/** @brief Clear the specified USART ISR flag, in setting the proper ICR register flag.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @param __IT_CLEAR__: specifies the interrupt clear register flag that needs to be set
+ * to clear the corresponding interrupt.
+ * This parameter can be one of the following values:
+ * @arg USART_CLEAR_PEF: Parity Error Clear Flag
+ * @arg USART_CLEAR_FEF: Framing Error Clear Flag
+ * @arg USART_CLEAR_NEF: Noise detected Clear Flag
+ * @arg USART_CLEAR_OREF: OverRun Error Clear Flag
+ * @arg USART_CLEAR_IDLEF: IDLE line detected Clear Flag
+ * @arg USART_CLEAR_TCF: Transmission Complete Clear Flag
+ * @arg USART_CLEAR_CTSF: CTS Interrupt Clear Flag
+ * @retval None
+ */
+#define __HAL_USART_CLEAR_IT(__HANDLE__, __IT_CLEAR__) ((__HANDLE__)->Instance->ICR = (uint32_t)(__IT_CLEAR__))
+
+/** @brief Set a specific USART request flag.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @param __REQ__: specifies the request flag to set.
+ * This parameter can be one of the following values:
+ * @arg USART_RXDATA_FLUSH_REQUEST: Receive Data flush Request
+ * @arg USART_TXDATA_FLUSH_REQUEST: Transmit data flush Request
+ *
+ * @retval None
+ */
+#define __HAL_USART_SEND_REQ(__HANDLE__, __REQ__) ((__HANDLE__)->Instance->RQR |= (__REQ__))
+
+/** @brief Enable the USART one bit sample method.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @retval None
+ */
+#define __HAL_USART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT)
+
+/** @brief Disable the USART one bit sample method.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @retval None
+ */
+#define __HAL_USART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_ONEBIT))
+
+/** @brief Enable USART.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @retval None
+ */
+#define __HAL_USART_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 |= USART_CR1_UE)
+
+/** @brief Disable USART.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @retval None
+ */
+#define __HAL_USART_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE)
+
+/**
+ * @}
+ */
+
+/* Private macros --------------------------------------------------------*/
+/** @defgroup USART_Private_Macros USART Private Macros
+ * @{
+ */
+
+/** @brief Report the USART clock source.
+ * @param __HANDLE__: specifies the USART Handle.
+ * @param __CLOCKSOURCE__: output variable.
+ * @retval the USART clocking source, written in __CLOCKSOURCE__.
+ */
+#define USART_GETCLOCKSOURCE(__HANDLE__,__CLOCKSOURCE__) \
+ do { \
+ if((__HANDLE__)->Instance == USART1) \
+ { \
+ switch(__HAL_RCC_GET_USART1_SOURCE()) \
+ { \
+ case RCC_USART1CLKSOURCE_PCLK2: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK2; \
+ break; \
+ case RCC_USART1CLKSOURCE_HSI: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \
+ break; \
+ case RCC_USART1CLKSOURCE_SYSCLK: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \
+ break; \
+ case RCC_USART1CLKSOURCE_LSE: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \
+ break; \
+ default: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_UNDEFINED; \
+ break; \
+ } \
+ } \
+ else if((__HANDLE__)->Instance == USART2) \
+ { \
+ switch(__HAL_RCC_GET_USART2_SOURCE()) \
+ { \
+ case RCC_USART2CLKSOURCE_PCLK1: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK1; \
+ break; \
+ case RCC_USART2CLKSOURCE_HSI: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \
+ break; \
+ case RCC_USART2CLKSOURCE_SYSCLK: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \
+ break; \
+ case RCC_USART2CLKSOURCE_LSE: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \
+ break; \
+ default: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_UNDEFINED; \
+ break; \
+ } \
+ } \
+ else if((__HANDLE__)->Instance == USART3) \
+ { \
+ switch(__HAL_RCC_GET_USART3_SOURCE()) \
+ { \
+ case RCC_USART3CLKSOURCE_PCLK1: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_PCLK1; \
+ break; \
+ case RCC_USART3CLKSOURCE_HSI: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_HSI; \
+ break; \
+ case RCC_USART3CLKSOURCE_SYSCLK: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_SYSCLK; \
+ break; \
+ case RCC_USART3CLKSOURCE_LSE: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_LSE; \
+ break; \
+ default: \
+ (__CLOCKSOURCE__) = USART_CLOCKSOURCE_UNDEFINED; \
+ break; \
+ } \
+ } \
+ } while(0)
+
+/** @brief Check USART Baud rate.
+ * @param __BAUDRATE__: Baudrate specified by the user.
+ * The maximum Baud Rate is derived from the maximum clock on L4 (i.e. 80 MHz)
+ * divided by the smallest oversampling used on the USART (i.e. 8).
+ * @retval Test result (TRUE or FALSE).
+ */
+#define IS_USART_BAUDRATE(__BAUDRATE__) ((__BAUDRATE__) < 10000001)
+
+/**
+ * @brief Ensure that USART frame number of stop bits is valid.
+ * @param __STOPBITS__: USART frame number of stop bits.
+ * @retval SET (__STOPBITS__ is valid) or RESET (__STOPBITS__ is invalid)
+ */
+#define IS_USART_STOPBITS(__STOPBITS__) (((__STOPBITS__) == USART_STOPBITS_1) || \
+ ((__STOPBITS__) == USART_STOPBITS_1_5) || \
+ ((__STOPBITS__) == USART_STOPBITS_2))
+
+/**
+ * @brief Ensure that USART frame parity is valid.
+ * @param __PARITY__: USART frame parity.
+ * @retval SET (__PARITY__ is valid) or RESET (__PARITY__ is invalid)
+ */
+#define IS_USART_PARITY(__PARITY__) (((__PARITY__) == USART_PARITY_NONE) || \
+ ((__PARITY__) == USART_PARITY_EVEN) || \
+ ((__PARITY__) == USART_PARITY_ODD))
+
+/**
+ * @brief Ensure that USART communication mode is valid.
+ * @param __MODE__: USART communication mode.
+ * @retval SET (__MODE__ is valid) or RESET (__MODE__ is invalid)
+ */
+#define IS_USART_MODE(__MODE__) ((((__MODE__) & (uint32_t)0xFFFFFFF3) == 0x00) && ((__MODE__) != (uint32_t)0x00))
+
+/**
+ * @brief Ensure that USART oversampling is valid.
+ * @param __SAMPLING__: USART oversampling.
+ * @retval SET (__SAMPLING__ is valid) or RESET (__SAMPLING__ is invalid)
+ */
+#define IS_USART_OVERSAMPLING(__SAMPLING__) (((__SAMPLING__) == USART_OVERSAMPLING_16) || \
+ ((__SAMPLING__) == USART_OVERSAMPLING_8))
+
+/**
+ * @brief Ensure that USART clock state is valid.
+ * @param __CLOCK__: USART clock state.
+ * @retval SET (__CLOCK__ is valid) or RESET (__CLOCK__ is invalid)
+ */
+#define IS_USART_CLOCK(__CLOCK__) (((__CLOCK__) == USART_CLOCK_DISABLE) || \
+ ((__CLOCK__) == USART_CLOCK_ENABLE))
+
+/**
+ * @brief Ensure that USART frame polarity is valid.
+ * @param __CPOL__: USART frame polarity.
+ * @retval SET (__CPOL__ is valid) or RESET (__CPOL__ is invalid)
+ */
+#define IS_USART_POLARITY(__CPOL__) (((__CPOL__) == USART_POLARITY_LOW) || ((__CPOL__) == USART_POLARITY_HIGH))
+
+/**
+ * @brief Ensure that USART frame phase is valid.
+ * @param __CPHA__: USART frame phase.
+ * @retval SET (__CPHA__ is valid) or RESET (__CPHA__ is invalid)
+ */
+#define IS_USART_PHASE(__CPHA__) (((__CPHA__) == USART_PHASE_1EDGE) || ((__CPHA__) == USART_PHASE_2EDGE))
+
+/**
+ * @brief Ensure that USART frame last bit clock pulse setting is valid.
+ * @param __LASTBIT__: USART frame last bit clock pulse setting.
+ * @retval SET (__LASTBIT__ is valid) or RESET (__LASTBIT__ is invalid)
+ */
+#define IS_USART_LASTBIT(__LASTBIT__) (((__LASTBIT__) == USART_LASTBIT_DISABLE) || \
+ ((__LASTBIT__) == USART_LASTBIT_ENABLE))
+
+/**
+ * @brief Ensure that USART request parameter is valid.
+ * @param __PARAM__: USART request parameter.
+ * @retval SET (__PARAM__ is valid) or RESET (__PARAM__ is invalid)
+ */
+#define IS_USART_REQUEST_PARAMETER(__PARAM__) (((__PARAM__) == USART_RXDATA_FLUSH_REQUEST) || \
+ ((__PARAM__) == USART_TXDATA_FLUSH_REQUEST))
+
+/**
+ * @}
+ */
+
+/* Include USART HAL Extended module */
+#include "stm32l4xx_hal_usart_ex.h"
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup USART_Exported_Functions USART Exported Functions
+ * @{
+ */
+
+/** @addtogroup USART_Exported_Functions_Group1 Initialization and de-initialization functions
+ * @{
+ */
+
+/* Initialization and de-initialization functions ****************************/
+HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart);
+HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart);
+void HAL_USART_MspInit(USART_HandleTypeDef *husart);
+void HAL_USART_MspDeInit(USART_HandleTypeDef *husart);
+
+/**
+ * @}
+ */
+
+/** @addtogroup USART_Exported_Functions_Group2 IO operation functions
+ * @{
+ */
+
+/* IO operation functions *****************************************************/
+HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
+HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
+HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
+HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size);
+HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
+HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
+HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size);
+HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart);
+HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart);
+HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart);
+void HAL_USART_IRQHandler(USART_HandleTypeDef *husart);
+void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart);
+void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart);
+void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart);
+void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart);
+void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart);
+void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart);
+
+/**
+ * @}
+ */
+
+/* Peripheral Control functions ***********************************************/
+
+/** @addtogroup USART_Exported_Functions_Group4 Peripheral State and Error functions
+ * @{
+ */
+
+/* Peripheral State and Error functions ***************************************/
+HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart);
+uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart);
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32L4xx_HAL_USART_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/