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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Revision:
630:825f75ca301e
Parent:
441:d2c15dda23c1
--- a/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_usart.h	Mon Sep 28 10:30:09 2015 +0100
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_usart.h	Mon Sep 28 10:45:10 2015 +0100
@@ -2,13 +2,13 @@
   ******************************************************************************
   * @file    stm32f0xx_hal_usart.h
   * @author  MCD Application Team
-  * @version V1.2.0
-  * @date    11-December-2014
+  * @version V1.3.0
+  * @date    26-June-2015
   * @brief   Header file of USART HAL module.
   ******************************************************************************
   * @attention
   *
-  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+  * <h2><center>&copy; 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:
@@ -32,7 +32,7 @@
   * 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 -------------------------------------*/
@@ -52,28 +52,27 @@
 
 /** @addtogroup USART
   * @{
-  */ 
+  */
 
 /* Exported types ------------------------------------------------------------*/ 
 /** @defgroup USART_Exported_Types USART Exported Types
   * @{
-  */ 
-
+  */
 
-/** 
-  * @brief USART Init Structure definition  
-  */ 
+/**
+  * @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))) */
+                                              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 */
+                                           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 */
+                                           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
@@ -81,37 +80,37 @@
                                                  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 */
+                                           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 */
+                                           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 */
+                                           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 */
+                                           This parameter can be a value of @ref USART_Last_Bit. */
 }USART_InitTypeDef;
 
-/** 
-  * @brief HAL State structures definition  
-  */ 
+/**
+  * @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_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_STATE_TIMEOUT           = 0x03,    /*!< Timeout state                                  */
+  HAL_USART_STATE_ERROR             = 0x04     /*!< Error                                          */
 }HAL_USART_StateTypeDef;
 
-/** 
+/**
   * @brief  USART clock sources definitions
   */
 typedef enum
@@ -120,43 +119,43 @@
   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_CLOCKSOURCE_UNDEFINED = 0x10  /*!< undefined clock source */
 }USART_ClockSourceTypeDef;
 
-/** 
-  * @brief  USART handle Structure definition  
-  */  
+
+/**
+  * @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                      */
-  
-  HAL_USART_StateTypeDef        State;           /*!< USART communication state           */
-  
-  __IO uint32_t                 ErrorCode;       /*!< USART Error code                    
-                                                      This parameter can be a value of @ref USART_Error */
-  
+
+  HAL_LockTypeDef               Lock;             /*!< Locking object                      */
+
+  __IO HAL_USART_StateTypeDef   State;           /*!< USART communication state           */
+
+  __IO uint32_t                 ErrorCode;       /*!< USART Error code                    */
+
 }USART_HandleTypeDef;
 
 /**
@@ -164,7 +163,7 @@
   */
 
 /* Exported constants --------------------------------------------------------*/
-/** @defgroup USART_Exported_Constants USART Exported constants
+/** @defgroup USART_Exported_Constants USART Exported Constants
   * @{
   */
 
@@ -187,64 +186,53 @@
 #define USART_STOPBITS_1                     ((uint32_t)0x0000)
 #define USART_STOPBITS_2                     ((uint32_t)USART_CR2_STOP_1)
 #define USART_STOPBITS_1_5                   ((uint32_t)(USART_CR2_STOP_0 | USART_CR2_STOP_1))
-#define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_STOPBITS_1) || \
-                                         ((STOPBITS) == USART_STOPBITS_1_5) || \
-                                         ((STOPBITS) == USART_STOPBITS_2))
 /**
   * @}
   */ 
 
 /** @defgroup USART_Parity    USART Parity
   * @{
-  */ 
-#define USART_PARITY_NONE                    ((uint32_t)0x0000)
-#define USART_PARITY_EVEN                    ((uint32_t)USART_CR1_PCE)
-#define USART_PARITY_ODD                     ((uint32_t)(USART_CR1_PCE | USART_CR1_PS)) 
-#define IS_USART_PARITY(PARITY) (((PARITY) == USART_PARITY_NONE) || \
-                                     ((PARITY) == USART_PARITY_EVEN) || \
-                                     ((PARITY) == USART_PARITY_ODD))
+  */
+#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)
-#define USART_MODE_TX                        ((uint32_t)USART_CR1_TE)
-#define USART_MODE_TX_RX                     ((uint32_t)(USART_CR1_TE |USART_CR1_RE))
-#define IS_USART_MODE(MODE) ((((MODE) & (uint32_t)0xFFFFFFF3) == 0x00) && ((MODE) != (uint32_t)0x00))
+  */
+#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_Clock  USART Clock
   * @{
-  */ 
-#define USART_CLOCK_DISABLED                 ((uint32_t)0x0000)
-#define USART_CLOCK_ENABLED                  ((uint32_t)USART_CR2_CLKEN)
-#define IS_USART_CLOCK(CLOCK)      (((CLOCK) == USART_CLOCK_DISABLED) || \
-                                   ((CLOCK) == USART_CLOCK_ENABLED))
+  */
+#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)0x0000)
-#define USART_POLARITY_HIGH                  ((uint32_t)USART_CR2_CPOL)
-#define IS_USART_POLARITY(CPOL) (((CPOL) == USART_POLARITY_LOW) || ((CPOL) == USART_POLARITY_HIGH))
+#define USART_POLARITY_LOW                  ((uint32_t)0x00000000)       /*!< USART Clock signal is steady Low */
+#define USART_POLARITY_HIGH                 ((uint32_t)USART_CR2_CPOL)   /*!< USART Clock signal is steady High  */
 /**
   * @}
-  */ 
+  */
 
 /** @defgroup USART_Clock_Phase   USART Clock Phase
   * @{
   */
-#define USART_PHASE_1EDGE                    ((uint32_t)0x0000)
-#define USART_PHASE_2EDGE                    ((uint32_t)USART_CR2_CPHA)
-#define IS_USART_PHASE(CPHA) (((CPHA) == USART_PHASE_1EDGE) || ((CPHA) == USART_PHASE_2EDGE))
+#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 */
 /**
   * @}
   */
@@ -252,34 +240,8 @@
 /** @defgroup USART_Last_Bit  USART Last Bit
   * @{
   */
-#define USART_LASTBIT_DISABLE                ((uint32_t)0x0000)
-#define USART_LASTBIT_ENABLE                 ((uint32_t)USART_CR2_LBCL)
-#define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LASTBIT_DISABLE) || \
-                                       ((LASTBIT) == USART_LASTBIT_ENABLE))
-/**
-  * @}
-  */
-
-
-/** @defgroup USART_Flags      USART Flags
-  *        Elements values convention: 0xXXXX
-  *           - 0xXXXX  : Flag mask in the ISR register
-  * @{
-  */
-#define USART_FLAG_REACK                     ((uint32_t)0x00400000)
-#define USART_FLAG_TEACK                     ((uint32_t)0x00200000)  
-#define USART_FLAG_BUSY                      ((uint32_t)0x00010000)
-#define USART_FLAG_CTS                       ((uint32_t)0x00000400)
-#define USART_FLAG_CTSIF                     ((uint32_t)0x00000200)
-#define USART_FLAG_LBDF                      ((uint32_t)0x00000100)
-#define USART_FLAG_TXE                       ((uint32_t)0x00000080)
-#define USART_FLAG_TC                        ((uint32_t)0x00000040)
-#define USART_FLAG_RXNE                      ((uint32_t)0x00000020)
-#define USART_FLAG_IDLE                      ((uint32_t)0x00000010)
-#define USART_FLAG_ORE                       ((uint32_t)0x00000008)
-#define USART_FLAG_NE                        ((uint32_t)0x00000004)
-#define USART_FLAG_FE                        ((uint32_t)0x00000002)
-#define USART_FLAG_PE                        ((uint32_t)0x00000001)
+#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     */
 /**
   * @}
   */
@@ -294,17 +256,16 @@
   *           - ZZZZ  : Flag position in the ISR register(4bits)
   * @{
   */
-  
-#define USART_IT_PE                          ((uint16_t)0x0028)
-#define USART_IT_TXE                         ((uint16_t)0x0727)
-#define USART_IT_TC                          ((uint16_t)0x0626)
-#define USART_IT_RXNE                        ((uint16_t)0x0525)
-#define USART_IT_IDLE                        ((uint16_t)0x0424)
-#define USART_IT_ERR                         ((uint16_t)0x0060)
 
-#define USART_IT_ORE                         ((uint16_t)0x0300)
-#define USART_IT_NE                          ((uint16_t)0x0200)
-#define USART_IT_FE                          ((uint16_t)0x0100)
+#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                  */ 
 /**
   * @}
   */
@@ -312,32 +273,21 @@
 /** @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_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 */
-#define IS_USART_REQUEST_PARAMETER(PARAM) (((PARAM) == USART_RXDATA_FLUSH_REQUEST) || \
-                                           ((PARAM) == USART_TXDATA_FLUSH_REQUEST))   
+#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 interruptions flag mask
+/** @defgroup USART_Interruption_Mask    USART Interruption Flags Mask
   * @{
-  */  
-#define USART_IT_MASK                             ((uint16_t)0x001F)  
+  */
+#define USART_IT_MASK                             ((uint16_t)0x001F)     /*!< USART interruptions flags mask */
 /**
   * @}
   */
@@ -345,27 +295,26 @@
 /**
   * @}
   */
-     
-/* Exported macro ------------------------------------------------------------*/
+
+/* Exported macros -----------------------------------------------------------*/
 /** @defgroup USART_Exported_Macros USART Exported Macros
   * @{
-  */  
+  */
 
-
-/** @brief  Reset USART handle state
+/** @brief  Reset USART handle state.
   * @param  __HANDLE__: USART handle.
   * @retval None
   */
-#define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_USART_STATE_RESET)
+#define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__)  ((__HANDLE__)->State = HAL_USART_STATE_RESET)
 
-/** @brief  Checks whether the specified USART flag is set or not.
+/** @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 ackowledge flag
-  *            @arg USART_FLAG_TEACK: Transmit enable ackowledge flag
-  *            @arg USART_FLAG_BUSY:  Busy flag                  
-  *            @arg USART_FLAG_CTS:   CTS Change flag         
+  *            @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
@@ -378,9 +327,57 @@
   */
 #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_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  Enables the specified USART interrupt.
-  * @param  __HANDLE__: specifies the USART Handle
+/** @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
@@ -395,7 +392,7 @@
                                                             ((((uint8_t)(__INTERRUPT__)) >> 5U) == 2)? ((__HANDLE__)->Instance->CR2 |= (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
                                                             ((__HANDLE__)->Instance->CR3 |= (1U << ((__INTERRUPT__) & USART_IT_MASK))))
 
-/** @brief  Disables the specified USART interrupt.
+/** @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:
@@ -411,9 +408,9 @@
                                                             ((((uint8_t)(__INTERRUPT__)) >> 5U) == 2)? ((__HANDLE__)->Instance->CR2 &= ~ (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
                                                             ((__HANDLE__)->Instance->CR3 &= ~ (1U << ((__INTERRUPT__) & USART_IT_MASK))))
 
-    
-/** @brief  Checks whether the specified USART interrupt has occurred or not.
-  * @param  __HANDLE__: specifies the USART Handle
+
+/** @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
@@ -426,9 +423,9 @@
   *            @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))) 
+#define __HAL_USART_GET_IT(__HANDLE__, __IT__) ((__HANDLE__)->Instance->ISR & ((uint32_t)1 << ((__IT__)>> 0x08)))
 
-/** @brief  Checks whether the specified USART interrupt source is enabled.
+/** @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:
@@ -447,48 +444,60 @@
                                                    (((uint16_t)(__IT__)) & USART_IT_MASK)))
 
 
-/** @brief  Clears the specified USART ISR flag, in setting the proper ICR register flag.
+/** @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
+  *                       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      
+  *            @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__)) 
+#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
+  * @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 
+  *            @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 |= (uint16_t)(__REQ__)) 
+  */
+#define __HAL_USART_SEND_REQ(__HANDLE__, __REQ__)      ((__HANDLE__)->Instance->RQR |= (__REQ__))
 
-/** @brief  Enable USART
+/** @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)
+  */
+#define __HAL_USART_ENABLE(__HANDLE__)                 ((__HANDLE__)->Instance->CR1 |=  USART_CR1_UE)
 
-/** @brief  Disable USART
+/** @brief  Disable USART.
   * @param  __HANDLE__: specifies the USART Handle.
   * @retval None
-  */ 
-#define __HAL_USART_DISABLE(__HANDLE__)              ((__HANDLE__)->Instance->CR1 &=  ~USART_CR1_UE)
+  */
+#define __HAL_USART_DISABLE(__HANDLE__)                ((__HANDLE__)->Instance->CR1 &=  ~USART_CR1_UE)
 
 /**
   * @}
-  */  
+  */
 
 /* Private macros --------------------------------------------------------*/
 /** @defgroup USART_Private_Macros   USART Private Macros
@@ -496,45 +505,99 @@
   */
 
 /** @brief  Check USART Baud rate
-  * @param  BAUDRATE: Baudrate specified by the user
+  * @param  __BAUDRATE__: Baudrate specified by the user.
   *         The maximum Baud Rate is derived from the maximum clock on F0 (i.e. 48 MHz) 
-  *         divided by the smallest oversampling used on the USART (i.e. 8)  
-  * @retval Test result (TRUE or FALSE) 
+  *         divided by the smallest oversampling used on the USART (i.e. 8)
+  * @retval Test result (TRUE or FALSE).
   */ 
-#define IS_USART_BAUDRATE(BAUDRATE) ((BAUDRATE) < 9000001)
+#define IS_USART_BAUDRATE(__BAUDRATE__) ((__BAUDRATE__) < 9000001)
+
 /**
-  * @}
+  * @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)
   */
- 
-/* Include USART HAL Extension module */
-#include "stm32f0xx_hal_usart_ex.h"        
-                                 
-/* Exported functions --------------------------------------------------------*/
+#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))
 
-/** @addtogroup USART_Exported_Functions USART Exported Functions
-  * @{
-  */
-  
-/** @addtogroup USART_Exported_Functions_Group1 Initialization and de-initialization functions 
-  * @{
+/**
+  * @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 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))
 
-/* 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);
-HAL_StatusTypeDef HAL_USART_CheckIdleState(USART_HandleTypeDef *husart);
+/**
+  * @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))
 
 /**
   * @}
   */
 
-/** @addtogroup USART_Exported_Functions_Group2 IO operation functions 
+/* Include USART HAL Extension module */
+#include "stm32f0xx_hal_usart_ex.h"
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup USART_Exported_Functions USART Exported Functions
+  * @{
+  */
+
+/** @addtogroup USART_Exported_Functions_Group1 Initialization and de-initialization functions
   * @{
   */
 
-/* IO operation 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);
@@ -561,25 +624,25 @@
 
 /* Peripheral Control functions ***********************************************/
 
-/** @addtogroup USART_Exported_Functions_Group3 Peripheral State and Errors functions 
+/** @addtogroup USART_Exported_Functions_Group3 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);
-
-/**
-  * @}
-  */ 
+uint32_t               HAL_USART_GetError(USART_HandleTypeDef *husart);
 
 /**
   * @}
   */
-  
+
 /**
   * @}
-  */ 
+  */
+
+/**
+  * @}
+  */
 
 /**
   * @}