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  1. /**
  2.   ******************************************************************************
  3.   * @file    stm32f0xx_hal_usart.h
  4.   * @author  MCD Application Team
  5.   * @brief   Header file of USART HAL module.
  6.   ******************************************************************************
  7.   * @attention
  8.   *
  9.   * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  10.   * All rights reserved.</center></h2>
  11.   *
  12.   * This software component is licensed by ST under BSD 3-Clause license,
  13.   * the "License"; You may not use this file except in compliance with the
  14.   * License. You may obtain a copy of the License at:
  15.   *                        opensource.org/licenses/BSD-3-Clause
  16.   *
  17.   ******************************************************************************
  18.   */
  19.  
  20. /* Define to prevent recursive inclusion -------------------------------------*/
  21. #ifndef STM32F0xx_HAL_USART_H
  22. #define STM32F0xx_HAL_USART_H
  23.  
  24. #ifdef __cplusplus
  25. extern "C" {
  26. #endif
  27.  
  28. /* Includes ------------------------------------------------------------------*/
  29. #include "stm32f0xx_hal_def.h"
  30.  
  31. /** @addtogroup STM32F0xx_HAL_Driver
  32.   * @{
  33.   */
  34.  
  35. /** @addtogroup USART
  36.   * @{
  37.   */
  38.  
  39. /* Exported types ------------------------------------------------------------*/
  40. /** @defgroup USART_Exported_Types USART Exported Types
  41.   * @{
  42.   */
  43.  
  44. /**
  45.   * @brief USART Init Structure definition
  46.   */
  47. typedef struct
  48. {
  49.   uint32_t BaudRate;                  /*!< This member configures the Usart communication baud rate.
  50.                                            The baud rate is computed using the following formula:
  51.                                               Baud Rate Register[15:4] = ((2 * fclk_pres) /
  52.                                               ((huart->Init.BaudRate)))[15:4]
  53.                                               Baud Rate Register[3]    = 0
  54.                                               Baud Rate Register[2:0]  =  (((2 * fclk_pres) /
  55.                                               ((huart->Init.BaudRate)))[3:0]) >> 1
  56.                                               where fclk_pres is the USART input clock frequency
  57.                                            @note  Oversampling by 8 is systematically applied to
  58.                                                   achieve high baud rates. */
  59.  
  60.   uint32_t WordLength;                /*!< Specifies the number of data bits transmitted or received in a frame.
  61.                                            This parameter can be a value of @ref USARTEx_Word_Length. */
  62.  
  63.   uint32_t StopBits;                  /*!< Specifies the number of stop bits transmitted.
  64.                                            This parameter can be a value of @ref USART_Stop_Bits. */
  65.  
  66.   uint32_t Parity;                   /*!< Specifies the parity mode.
  67.                                            This parameter can be a value of @ref USART_Parity
  68.                                            @note When parity is enabled, the computed parity is inserted
  69.                                                  at the MSB position of the transmitted data (9th bit when
  70.                                                  the word length is set to 9 data bits; 8th bit when the
  71.                                                  word length is set to 8 data bits). */
  72.  
  73.   uint32_t Mode;                      /*!< Specifies whether the Receive or Transmit mode is enabled or disabled.
  74.                                            This parameter can be a value of @ref USART_Mode. */
  75.  
  76.   uint32_t CLKPolarity;               /*!< Specifies the steady state of the serial clock.
  77.                                            This parameter can be a value of @ref USART_Clock_Polarity. */
  78.  
  79.   uint32_t CLKPhase;                  /*!< Specifies the clock transition on which the bit capture is made.
  80.                                            This parameter can be a value of @ref USART_Clock_Phase. */
  81.  
  82.   uint32_t CLKLastBit;                /*!< Specifies whether the clock pulse corresponding to the last transmitted
  83.                                            data bit (MSB) has to be output on the SCLK pin in synchronous mode.
  84.                                            This parameter can be a value of @ref USART_Last_Bit. */
  85.  
  86. } USART_InitTypeDef;
  87.  
  88. /**
  89.   * @brief HAL USART State structures definition
  90.   */
  91. typedef enum
  92. {
  93.   HAL_USART_STATE_RESET             = 0x00U,    /*!< Peripheral is not initialized                  */
  94.   HAL_USART_STATE_READY             = 0x01U,    /*!< Peripheral Initialized and ready for use       */
  95.   HAL_USART_STATE_BUSY              = 0x02U,    /*!< an internal process is ongoing                 */
  96.   HAL_USART_STATE_BUSY_TX           = 0x12U,    /*!< Data Transmission process is ongoing           */
  97.   HAL_USART_STATE_BUSY_RX           = 0x22U,    /*!< Data Reception process is ongoing              */
  98.   HAL_USART_STATE_BUSY_TX_RX        = 0x32U,    /*!< Data Transmission Reception process is ongoing */
  99.   HAL_USART_STATE_TIMEOUT           = 0x03U,    /*!< Timeout state                                  */
  100.   HAL_USART_STATE_ERROR             = 0x04U     /*!< Error                                          */
  101. } HAL_USART_StateTypeDef;
  102.  
  103. /**
  104.   * @brief  USART clock sources definitions
  105.   */
  106. typedef enum
  107. {
  108.   USART_CLOCKSOURCE_PCLK1      = 0x00U,    /*!< PCLK1 clock source     */
  109.   USART_CLOCKSOURCE_HSI        = 0x02U,    /*!< HSI clock source       */
  110.   USART_CLOCKSOURCE_SYSCLK     = 0x04U,    /*!< SYSCLK clock source    */
  111.   USART_CLOCKSOURCE_LSE        = 0x08U,    /*!< LSE clock source       */
  112.   USART_CLOCKSOURCE_UNDEFINED  = 0x10U     /*!< Undefined clock source */
  113. } USART_ClockSourceTypeDef;
  114.  
  115. /**
  116.   * @brief  USART handle Structure definition
  117.   */
  118. typedef struct __USART_HandleTypeDef
  119. {
  120.   USART_TypeDef                 *Instance;               /*!< USART registers base address        */
  121.  
  122.   USART_InitTypeDef             Init;                    /*!< USART communication parameters      */
  123.  
  124.   uint8_t                       *pTxBuffPtr;             /*!< Pointer to USART Tx transfer Buffer */
  125.  
  126.   uint16_t                      TxXferSize;              /*!< USART Tx Transfer size              */
  127.  
  128.   __IO uint16_t                 TxXferCount;             /*!< USART Tx Transfer Counter           */
  129.  
  130.   uint8_t                       *pRxBuffPtr;             /*!< Pointer to USART Rx transfer Buffer */
  131.  
  132.   uint16_t                      RxXferSize;              /*!< USART Rx Transfer size              */
  133.  
  134.   __IO uint16_t                 RxXferCount;             /*!< USART Rx Transfer Counter           */
  135.  
  136.   uint16_t                      Mask;                    /*!< USART Rx RDR register mask          */
  137.  
  138.   void (*RxISR)(struct __USART_HandleTypeDef *husart);   /*!< Function pointer on Rx IRQ handler  */
  139.  
  140.   void (*TxISR)(struct __USART_HandleTypeDef *husart);   /*!< Function pointer on Tx IRQ handler  */
  141.  
  142.   DMA_HandleTypeDef             *hdmatx;                 /*!< USART Tx DMA Handle parameters      */
  143.  
  144.   DMA_HandleTypeDef             *hdmarx;                 /*!< USART Rx DMA Handle parameters      */
  145.  
  146.   HAL_LockTypeDef               Lock;                    /*!< Locking object                      */
  147.  
  148.   __IO HAL_USART_StateTypeDef   State;                   /*!< USART communication state           */
  149.  
  150.   __IO uint32_t                 ErrorCode;               /*!< USART Error code                    */
  151.  
  152. #if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
  153.   void (* TxHalfCpltCallback)(struct __USART_HandleTypeDef *husart);        /*!< USART Tx Half Complete Callback        */
  154.   void (* TxCpltCallback)(struct __USART_HandleTypeDef *husart);            /*!< USART Tx Complete Callback             */
  155.   void (* RxHalfCpltCallback)(struct __USART_HandleTypeDef *husart);        /*!< USART Rx Half Complete Callback        */
  156.   void (* RxCpltCallback)(struct __USART_HandleTypeDef *husart);            /*!< USART Rx Complete Callback             */
  157.   void (* TxRxCpltCallback)(struct __USART_HandleTypeDef *husart);          /*!< USART Tx Rx Complete Callback          */
  158.   void (* ErrorCallback)(struct __USART_HandleTypeDef *husart);             /*!< USART Error Callback                   */
  159.   void (* AbortCpltCallback)(struct __USART_HandleTypeDef *husart);         /*!< USART Abort Complete Callback          */
  160.  
  161.   void (* MspInitCallback)(struct __USART_HandleTypeDef *husart);           /*!< USART Msp Init callback                */
  162.   void (* MspDeInitCallback)(struct __USART_HandleTypeDef *husart);         /*!< USART Msp DeInit callback              */
  163. #endif  /* USE_HAL_USART_REGISTER_CALLBACKS */
  164.  
  165. } USART_HandleTypeDef;
  166.  
  167. #if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
  168. /**
  169.   * @brief  HAL USART Callback ID enumeration definition
  170.   */
  171. typedef enum
  172. {
  173.   HAL_USART_TX_HALFCOMPLETE_CB_ID         = 0x00U,    /*!< USART Tx Half Complete Callback ID        */
  174.   HAL_USART_TX_COMPLETE_CB_ID             = 0x01U,    /*!< USART Tx Complete Callback ID             */
  175.   HAL_USART_RX_HALFCOMPLETE_CB_ID         = 0x02U,    /*!< USART Rx Half Complete Callback ID        */
  176.   HAL_USART_RX_COMPLETE_CB_ID             = 0x03U,    /*!< USART Rx Complete Callback ID             */
  177.   HAL_USART_TX_RX_COMPLETE_CB_ID          = 0x04U,    /*!< USART Tx Rx Complete Callback ID          */
  178.   HAL_USART_ERROR_CB_ID                   = 0x05U,    /*!< USART Error Callback ID                   */
  179.   HAL_USART_ABORT_COMPLETE_CB_ID          = 0x06U,    /*!< USART Abort Complete Callback ID          */
  180.  
  181.   HAL_USART_MSPINIT_CB_ID                 = 0x09U,    /*!< USART MspInit callback ID                 */
  182.   HAL_USART_MSPDEINIT_CB_ID               = 0x0AU     /*!< USART MspDeInit callback ID               */
  183.  
  184. } HAL_USART_CallbackIDTypeDef;
  185.  
  186. /**
  187.   * @brief  HAL USART Callback pointer definition
  188.   */
  189. typedef  void (*pUSART_CallbackTypeDef)(USART_HandleTypeDef *husart);  /*!< pointer to an USART callback function */
  190.  
  191. #endif /* USE_HAL_USART_REGISTER_CALLBACKS */
  192.  
  193. /**
  194.   * @}
  195.   */
  196.  
  197. /* Exported constants --------------------------------------------------------*/
  198. /** @defgroup USART_Exported_Constants USART Exported Constants
  199.   * @{
  200.   */
  201.  
  202. /** @defgroup USART_Error_Definition   USART Error Definition
  203.   * @{
  204.   */
  205. #define HAL_USART_ERROR_NONE             (0x00000000U)    /*!< No error                  */
  206. #define HAL_USART_ERROR_PE               (0x00000001U)    /*!< Parity error              */
  207. #define HAL_USART_ERROR_NE               (0x00000002U)    /*!< Noise error               */
  208. #define HAL_USART_ERROR_FE               (0x00000004U)    /*!< Frame error               */
  209. #define HAL_USART_ERROR_ORE              (0x00000008U)    /*!< Overrun error             */
  210. #define HAL_USART_ERROR_DMA              (0x00000010U)    /*!< DMA transfer error        */
  211. #if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
  212. #define HAL_USART_ERROR_INVALID_CALLBACK (0x00000040U)    /*!< Invalid Callback error    */
  213. #endif /* USE_HAL_USART_REGISTER_CALLBACKS */
  214. #define  HAL_USART_ERROR_RTO              (0x00000080U)    /*!< Receiver Timeout error  */
  215. /**
  216.   * @}
  217.   */
  218.  
  219. /** @defgroup USART_Stop_Bits  USART Number of Stop Bits
  220.   * @{
  221.   */
  222. #if defined(USART_SMARTCARD_SUPPORT)
  223. #define USART_STOPBITS_0_5                   USART_CR2_STOP_0                     /*!< USART frame with 0.5 stop bit  */
  224. #define USART_STOPBITS_1                     0x00000000U                          /*!< USART frame with 1 stop bit    */
  225. #define USART_STOPBITS_1_5                  (USART_CR2_STOP_0 | USART_CR2_STOP_1) /*!< USART frame with 1.5 stop bits */
  226. #define USART_STOPBITS_2                     USART_CR2_STOP_1                     /*!< USART frame with 2 stop bits   */
  227. #else
  228. #define USART_STOPBITS_1                    (0x00000000U)                                     /*!< USART frame with 1 stop bit    */
  229. #define USART_STOPBITS_2                    (USART_CR2_STOP_1)                      /*!< USART frame with 2 stop bits   */
  230. #endif /* USART_SMARTCARD_SUPPORT */
  231. /**
  232.   * @}
  233.   */
  234.  
  235. /** @defgroup USART_Parity    USART Parity
  236.   * @{
  237.   */
  238. #define USART_PARITY_NONE                   0x00000000U                      /*!< No parity   */
  239. #define USART_PARITY_EVEN                   USART_CR1_PCE                    /*!< Even parity */
  240. #define USART_PARITY_ODD                    (USART_CR1_PCE | USART_CR1_PS)   /*!< Odd parity  */
  241. /**
  242.   * @}
  243.   */
  244.  
  245. /** @defgroup USART_Mode   USART Mode
  246.   * @{
  247.   */
  248. #define USART_MODE_RX                       USART_CR1_RE                    /*!< RX mode        */
  249. #define USART_MODE_TX                       USART_CR1_TE                    /*!< TX mode        */
  250. #define USART_MODE_TX_RX                    (USART_CR1_TE |USART_CR1_RE)    /*!< RX and TX mode */
  251. /**
  252.   * @}
  253.   */
  254.  
  255. /** @defgroup USART_Clock  USART Clock
  256.   * @{
  257.   */
  258. #define USART_CLOCK_DISABLE                 0x00000000U       /*!< USART clock disable */
  259. #define USART_CLOCK_ENABLE                  USART_CR2_CLKEN   /*!< USART clock enable  */
  260. /**
  261.   * @}
  262.   */
  263.  
  264. /** @defgroup USART_Clock_Polarity  USART Clock Polarity
  265.   * @{
  266.   */
  267. #define USART_POLARITY_LOW                  0x00000000U      /*!< Driver enable signal is active high */
  268. #define USART_POLARITY_HIGH                 USART_CR2_CPOL   /*!< Driver enable signal is active low  */
  269. /**
  270.   * @}
  271.   */
  272.  
  273. /** @defgroup USART_Clock_Phase   USART Clock Phase
  274.   * @{
  275.   */
  276. #define USART_PHASE_1EDGE                   0x00000000U      /*!< USART frame phase on first clock transition  */
  277. #define USART_PHASE_2EDGE                   USART_CR2_CPHA   /*!< USART frame phase on second clock transition */
  278. /**
  279.   * @}
  280.   */
  281.  
  282. /** @defgroup USART_Last_Bit  USART Last Bit
  283.   * @{
  284.   */
  285. #define USART_LASTBIT_DISABLE               0x00000000U      /*!< USART frame last data bit clock pulse not output to SCLK pin */
  286. #define USART_LASTBIT_ENABLE                USART_CR2_LBCL   /*!< USART frame last data bit clock pulse output to SCLK pin     */
  287. /**
  288.   * @}
  289.   */
  290.  
  291.  
  292. /** @defgroup USART_Request_Parameters  USART Request Parameters
  293.   * @{
  294.   */
  295. #define USART_RXDATA_FLUSH_REQUEST        USART_RQR_RXFRQ        /*!< Receive Data flush Request  */
  296. #if   defined(USART_RQR_TXFRQ)
  297. #define USART_TXDATA_FLUSH_REQUEST        USART_RQR_TXFRQ        /*!< Transmit data flush Request */
  298. #endif /* USART_RQR_TXFRQ */
  299. /**
  300.   * @}
  301.   */
  302.  
  303. /** @defgroup USART_Flags      USART Flags
  304.   *        Elements values convention: 0xXXXX
  305.   *           - 0xXXXX  : Flag mask in the ISR register
  306.   * @{
  307.   */
  308. #define USART_FLAG_REACK                    USART_ISR_REACK         /*!< USART receive enable acknowledge flag      */
  309. #define USART_FLAG_TEACK                    USART_ISR_TEACK         /*!< USART transmit enable acknowledge flag     */
  310. #define USART_FLAG_BUSY                     USART_ISR_BUSY          /*!< USART busy flag                            */
  311. #define USART_FLAG_TXE                      USART_ISR_TXE           /*!< USART transmit data register empty         */
  312. #define USART_FLAG_RTOF                     USART_ISR_RTOF          /*!< USART receiver timeout flag                */
  313. #define USART_FLAG_TC                       USART_ISR_TC            /*!< USART transmission complete                */
  314. #define USART_FLAG_RXNE                     USART_ISR_RXNE          /*!< USART read data register not empty         */
  315. #define USART_FLAG_IDLE                     USART_ISR_IDLE          /*!< USART idle flag                            */
  316. #define USART_FLAG_ORE                      USART_ISR_ORE           /*!< USART overrun error                        */
  317. #define USART_FLAG_NE                       USART_ISR_NE            /*!< USART noise error                          */
  318. #define USART_FLAG_FE                       USART_ISR_FE            /*!< USART frame error                          */
  319. #define USART_FLAG_PE                       USART_ISR_PE            /*!< USART parity error                         */
  320. /**
  321.   * @}
  322.   */
  323.  
  324. /** @defgroup USART_Interrupt_definition USART Interrupts Definition
  325.   *        Elements values convention: 0000ZZZZ0XXYYYYYb
  326.   *           - YYYYY  : Interrupt source position in the XX register (5bits)
  327.   *           - XX  : Interrupt source register (2bits)
  328.   *                 - 01: CR1 register
  329.   *                 - 10: CR2 register
  330.   *                 - 11: CR3 register
  331.   *           - ZZZZ  : Flag position in the ISR register(4bits)
  332.   * @{
  333.   */
  334.  
  335. #define USART_IT_PE                          0x0028U     /*!< USART parity error interruption                 */
  336. #define USART_IT_TXE                         0x0727U     /*!< USART transmit data register empty interruption */
  337. #define USART_IT_TC                          0x0626U     /*!< USART transmission complete interruption        */
  338. #define USART_IT_RXNE                        0x0525U     /*!< USART read data register not empty interruption */
  339. #define USART_IT_IDLE                        0x0424U     /*!< USART idle interruption                         */
  340. #define USART_IT_ERR                         0x0060U     /*!< USART error interruption                        */
  341. #define USART_IT_ORE                         0x0300U     /*!< USART overrun error interruption                */
  342. #define USART_IT_NE                          0x0200U     /*!< USART noise error interruption                  */
  343. #define USART_IT_FE                          0x0100U     /*!< USART frame error interruption                  */
  344.  
  345. /**
  346.   * @}
  347.   */
  348.  
  349. /** @defgroup USART_IT_CLEAR_Flags    USART Interruption Clear Flags
  350.   * @{
  351.   */
  352. #define USART_CLEAR_PEF                       USART_ICR_PECF            /*!< Parity Error Clear Flag             */
  353. #define USART_CLEAR_FEF                       USART_ICR_FECF            /*!< Framing Error Clear Flag            */
  354. #define USART_CLEAR_NEF                       USART_ICR_NCF             /*!< Noise Error detected Clear Flag     */
  355. #define USART_CLEAR_OREF                      USART_ICR_ORECF           /*!< OverRun Error Clear Flag            */
  356. #define USART_CLEAR_IDLEF                     USART_ICR_IDLECF          /*!< IDLE line detected Clear Flag       */
  357. #define USART_CLEAR_TCF                       USART_ICR_TCCF            /*!< Transmission Complete Clear Flag    */
  358. #define USART_CLEAR_CTSF                      USART_ICR_CTSCF           /*!< CTS Interrupt Clear Flag            */
  359. #define USART_CLEAR_RTOF                      USART_ICR_RTOCF           /*!< USART receiver timeout clear flag  */
  360. /**
  361.   * @}
  362.   */
  363.  
  364. /** @defgroup USART_Interruption_Mask    USART Interruption Flags Mask
  365.   * @{
  366.   */
  367. #define USART_IT_MASK                             0x001FU     /*!< USART interruptions flags mask */
  368. #define USART_CR_MASK                             0x00E0U     /*!< USART control register mask */
  369. #define USART_CR_POS                              5U          /*!< USART control register position */
  370. #define USART_ISR_MASK                            0x1F00U     /*!< USART ISR register mask         */
  371. #define USART_ISR_POS                             8U          /*!< USART ISR register position     */
  372. /**
  373.   * @}
  374.   */
  375.  
  376. /**
  377.   * @}
  378.   */
  379.  
  380. /* Exported macros -----------------------------------------------------------*/
  381. /** @defgroup USART_Exported_Macros USART Exported Macros
  382.   * @{
  383.   */
  384.  
  385. /** @brief Reset USART handle state.
  386.   * @param  __HANDLE__ USART handle.
  387.   * @retval None
  388.   */
  389. #if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
  390. #define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__)  do{                                            \
  391.                                                         (__HANDLE__)->State = HAL_USART_STATE_RESET; \
  392.                                                         (__HANDLE__)->MspInitCallback = NULL;        \
  393.                                                         (__HANDLE__)->MspDeInitCallback = NULL;      \
  394.                                                       } while(0U)
  395. #else
  396. #define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__)  ((__HANDLE__)->State = HAL_USART_STATE_RESET)
  397. #endif /* USE_HAL_USART_REGISTER_CALLBACKS */
  398.  
  399. /** @brief  Check whether the specified USART flag is set or not.
  400.   * @param  __HANDLE__ specifies the USART Handle
  401.   * @param  __FLAG__ specifies the flag to check.
  402.   *        This parameter can be one of the following values:
  403.   *            @arg @ref USART_FLAG_REACK Receive enable acknowledge flag
  404.   *            @arg @ref USART_FLAG_TEACK Transmit enable acknowledge flag
  405.   *            @arg @ref USART_FLAG_BUSY  Busy flag
  406.   *            @arg @ref USART_FLAG_CTS   CTS Change flag
  407.   *            @arg @ref USART_FLAG_TXE   Transmit data register empty flag
  408.   *            @arg @ref USART_FLAG_TC    Transmission Complete flag
  409.   *            @arg @ref USART_FLAG_RXNE  Receive data register not empty flag
  410.   *            @arg @ref USART_FLAG_RTOF  Receiver Timeout flag
  411.   *            @arg @ref USART_FLAG_IDLE  Idle Line detection flag
  412.   *            @arg @ref USART_FLAG_ORE   OverRun Error flag
  413.   *            @arg @ref USART_FLAG_NE    Noise Error flag
  414.   *            @arg @ref USART_FLAG_FE    Framing Error flag
  415.   *            @arg @ref USART_FLAG_PE    Parity Error flag
  416.   * @retval The new state of __FLAG__ (TRUE or FALSE).
  417.   */
  418. #define __HAL_USART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->ISR & (__FLAG__)) == (__FLAG__))
  419.  
  420. /** @brief  Clear the specified USART pending flag.
  421.   * @param  __HANDLE__ specifies the USART Handle.
  422.   * @param  __FLAG__ specifies the flag to check.
  423.   *          This parameter can be any combination of the following values:
  424.   *            @arg @ref USART_CLEAR_PEF      Parity Error Clear Flag
  425.   *            @arg @ref USART_CLEAR_FEF      Framing Error Clear Flag
  426.   *            @arg @ref USART_CLEAR_NEF      Noise detected Clear Flag
  427.   *            @arg @ref USART_CLEAR_OREF     Overrun Error Clear Flag
  428.   *            @arg @ref USART_CLEAR_IDLEF    IDLE line detected Clear Flag
  429.   *            @arg @ref USART_CLEAR_TCF      Transmission Complete Clear Flag
  430.   *            @arg @ref USART_CLEAR_RTOF     Receiver Timeout clear flag
  431.   *            @arg @ref USART_CLEAR_CTSF
  432.   * @retval None
  433.   */
  434. #define __HAL_USART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->ICR = (__FLAG__))
  435.  
  436. /** @brief  Clear the USART PE pending flag.
  437.   * @param  __HANDLE__ specifies the USART Handle.
  438.   * @retval None
  439.   */
  440. #define __HAL_USART_CLEAR_PEFLAG(__HANDLE__)   __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_PEF)
  441.  
  442. /** @brief  Clear the USART FE pending flag.
  443.   * @param  __HANDLE__ specifies the USART Handle.
  444.   * @retval None
  445.   */
  446. #define __HAL_USART_CLEAR_FEFLAG(__HANDLE__)   __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_FEF)
  447.  
  448. /** @brief  Clear the USART NE pending flag.
  449.   * @param  __HANDLE__ specifies the USART Handle.
  450.   * @retval None
  451.   */
  452. #define __HAL_USART_CLEAR_NEFLAG(__HANDLE__)  __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_NEF)
  453.  
  454. /** @brief  Clear the USART ORE pending flag.
  455.   * @param  __HANDLE__ specifies the USART Handle.
  456.   * @retval None
  457.   */
  458. #define __HAL_USART_CLEAR_OREFLAG(__HANDLE__)   __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_OREF)
  459.  
  460. /** @brief  Clear the USART IDLE pending flag.
  461.   * @param  __HANDLE__ specifies the USART Handle.
  462.   * @retval None
  463.   */
  464. #define __HAL_USART_CLEAR_IDLEFLAG(__HANDLE__)   __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_IDLEF)
  465.  
  466.  
  467.  
  468. /** @brief  Enable the specified USART interrupt.
  469.   * @param  __HANDLE__ specifies the USART Handle.
  470.   * @param  __INTERRUPT__ specifies the USART interrupt source to enable.
  471.   *          This parameter can be one of the following values:
  472.   *            @arg @ref USART_IT_TXE   Transmit Data Register empty interrupt
  473.   *            @arg @ref USART_IT_TC    Transmission complete interrupt
  474.   *            @arg @ref USART_IT_RXNE  Receive Data register not empty interrupt
  475.   *            @arg @ref USART_IT_IDLE  Idle line detection interrupt
  476.   *            @arg @ref USART_IT_PE    Parity Error interrupt
  477.   *            @arg @ref USART_IT_ERR   Error interrupt(Frame error, noise error, overrun error)
  478.   * @retval None
  479.   */
  480. #define __HAL_USART_ENABLE_IT(__HANDLE__, __INTERRUPT__)\
  481.   (((((__INTERRUPT__) & USART_CR_MASK) >> USART_CR_POS) == 1U)?\
  482.    ((__HANDLE__)->Instance->CR1 |= (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
  483.    ((((__INTERRUPT__) & USART_CR_MASK) >> USART_CR_POS) == 2U)?\
  484.    ((__HANDLE__)->Instance->CR2 |= (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
  485.    ((__HANDLE__)->Instance->CR3 |= (1U << ((__INTERRUPT__) & USART_IT_MASK))))
  486.  
  487. /** @brief  Disable the specified USART interrupt.
  488.   * @param  __HANDLE__ specifies the USART Handle.
  489.   * @param  __INTERRUPT__ specifies the USART interrupt source to disable.
  490.   *          This parameter can be one of the following values:
  491.   *            @arg @ref USART_IT_TXE   Transmit Data Register empty interrupt
  492.   *            @arg @ref USART_IT_TC    Transmission complete interrupt
  493.   *            @arg @ref USART_IT_RXNE  Receive Data register not empty interrupt
  494.   *            @arg @ref USART_IT_IDLE  Idle line detection interrupt
  495.   *            @arg @ref USART_IT_PE    Parity Error interrupt
  496.   *            @arg @ref USART_IT_ERR   Error interrupt(Frame error, noise error, overrun error)
  497.   * @retval None
  498.   */
  499. #define __HAL_USART_DISABLE_IT(__HANDLE__, __INTERRUPT__)\
  500.   (((((__INTERRUPT__) & USART_CR_MASK) >> USART_CR_POS) == 1U)?\
  501.    ((__HANDLE__)->Instance->CR1 &= ~ (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
  502.    ((((__INTERRUPT__) & USART_CR_MASK) >> USART_CR_POS) == 2U)?\
  503.    ((__HANDLE__)->Instance->CR2 &= ~ (1U << ((__INTERRUPT__) & USART_IT_MASK))): \
  504.    ((__HANDLE__)->Instance->CR3 &= ~ (1U << ((__INTERRUPT__) & USART_IT_MASK))))
  505.  
  506. /** @brief  Check whether the specified USART interrupt has occurred or not.
  507.   * @param  __HANDLE__ specifies the USART Handle.
  508.   * @param  __INTERRUPT__ specifies the USART interrupt source to check.
  509.   *          This parameter can be one of the following values:
  510.   *            @arg @ref USART_IT_TXE   Transmit Data Register empty interrupt
  511.   *            @arg @ref USART_IT_TC    Transmission complete interrupt
  512.   *            @arg @ref USART_IT_RXNE  Receive Data register not empty interrupt
  513.   *            @arg @ref USART_IT_IDLE  Idle line detection interrupt
  514.   *            @arg @ref USART_IT_ORE   OverRun Error interrupt
  515.   *            @arg @ref USART_IT_NE    Noise Error interrupt
  516.   *            @arg @ref USART_IT_FE    Framing Error interrupt
  517.   *            @arg @ref USART_IT_PE    Parity Error interrupt
  518.   * @retval The new state of __INTERRUPT__ (SET or RESET).
  519.   */
  520. #define __HAL_USART_GET_IT(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->ISR\
  521.                                                          & (0x01U << (((__INTERRUPT__) & USART_ISR_MASK)>>\
  522.                                                                       USART_ISR_POS))) != 0U) ? SET : RESET)
  523.  
  524. /** @brief  Check whether the specified USART interrupt source is enabled or not.
  525.   * @param  __HANDLE__ specifies the USART Handle.
  526.   * @param  __INTERRUPT__ specifies the USART interrupt source to check.
  527.   *          This parameter can be one of the following values:
  528.   *            @arg @ref USART_IT_TXE   Transmit Data Register empty interrupt
  529.   *            @arg @ref USART_IT_TC    Transmission complete interrupt
  530.   *            @arg @ref USART_IT_RXNE  Receive Data register not empty interrupt
  531.   *            @arg @ref USART_IT_IDLE  Idle line detection interrupt
  532.   *            @arg @ref USART_IT_ORE   OverRun Error interrupt
  533.   *            @arg @ref USART_IT_NE    Noise Error interrupt
  534.   *            @arg @ref USART_IT_FE    Framing Error interrupt
  535.   *            @arg @ref USART_IT_PE    Parity Error interrupt
  536.   * @retval The new state of __INTERRUPT__ (SET or RESET).
  537.   */
  538. #define __HAL_USART_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((((((uint8_t)(__INTERRUPT__)) >> 0x05U) == 0x01U) ?\
  539.                                                                  (__HANDLE__)->Instance->CR1 : \
  540.                                                                  (((((uint8_t)(__INTERRUPT__)) >> 0x05U) == 0x02U) ?\
  541.                                                                   (__HANDLE__)->Instance->CR2 : \
  542.                                                                   (__HANDLE__)->Instance->CR3)) & (0x01U <<\
  543.                                                                       (((uint16_t)(__INTERRUPT__)) &\
  544.                                                                        USART_IT_MASK)))  != 0U) ? SET : RESET)
  545.  
  546. /** @brief  Clear the specified USART ISR flag, in setting the proper ICR register flag.
  547.   * @param  __HANDLE__ specifies the USART Handle.
  548.   * @param  __IT_CLEAR__ specifies the interrupt clear register flag that needs to be set
  549.   *                       to clear the corresponding interrupt.
  550.   *          This parameter can be one of the following values:
  551.   *            @arg @ref USART_CLEAR_PEF      Parity Error Clear Flag
  552.   *            @arg @ref USART_CLEAR_FEF      Framing Error Clear Flag
  553.   *            @arg @ref USART_CLEAR_NEF      Noise detected Clear Flag
  554.   *            @arg @ref USART_CLEAR_OREF     Overrun Error Clear Flag
  555.   *            @arg @ref USART_CLEAR_IDLEF    IDLE line detected Clear Flag
  556.   *            @arg @ref USART_CLEAR_RTOF     Receiver timeout clear flag
  557.   *            @arg @ref USART_CLEAR_TCF      Transmission Complete Clear Flag
  558.   * @retval None
  559.   */
  560. #define __HAL_USART_CLEAR_IT(__HANDLE__, __IT_CLEAR__) ((__HANDLE__)->Instance->ICR = (uint32_t)(__IT_CLEAR__))
  561.  
  562. /** @brief  Set a specific USART request flag.
  563.   * @param  __HANDLE__ specifies the USART Handle.
  564.   * @param  __REQ__ specifies the request flag to set.
  565.   *          This parameter can be one of the following values:
  566.   *            @arg @ref USART_RXDATA_FLUSH_REQUEST Receive Data flush Request
  567. #if   defined(USART_RQR_TXFRQ)
  568.   *            @arg @ref USART_TXDATA_FLUSH_REQUEST Transmit data flush Request
  569. #endif
  570.   *
  571.   * @retval None
  572.   */
  573. #define __HAL_USART_SEND_REQ(__HANDLE__, __REQ__)      ((__HANDLE__)->Instance->RQR |= (uint16_t)(__REQ__))
  574.  
  575. /** @brief  Enable the USART one bit sample method.
  576.   * @param  __HANDLE__ specifies the USART Handle.
  577.   * @retval None
  578.   */
  579. #define __HAL_USART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT)
  580.  
  581. /** @brief  Disable the USART one bit sample method.
  582.   * @param  __HANDLE__ specifies the USART Handle.
  583.   * @retval None
  584.   */
  585. #define __HAL_USART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3 &= ~USART_CR3_ONEBIT)
  586.  
  587. /** @brief  Enable USART.
  588.   * @param  __HANDLE__ specifies the USART Handle.
  589.   * @retval None
  590.   */
  591. #define __HAL_USART_ENABLE(__HANDLE__)                 ((__HANDLE__)->Instance->CR1 |= USART_CR1_UE)
  592.  
  593. /** @brief  Disable USART.
  594.   * @param  __HANDLE__ specifies the USART Handle.
  595.   * @retval None
  596.   */
  597. #define __HAL_USART_DISABLE(__HANDLE__)                ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE)
  598.  
  599. /**
  600.   * @}
  601.   */
  602.  
  603. /* Private macros --------------------------------------------------------*/
  604. /** @defgroup USART_Private_Macros   USART Private Macros
  605.   * @{
  606.   */
  607.  
  608. /** @brief  BRR division operation to set BRR register in 8-bit oversampling mode.
  609.   * @param  __PCLK__ USART clock.
  610.   * @param  __BAUD__ Baud rate set by the user.
  611.   * @retval Division result
  612.   */
  613. #define USART_DIV_SAMPLING8(__PCLK__, __BAUD__)   ((((__PCLK__)*2U) + ((__BAUD__)/2U)) / (__BAUD__))
  614.  
  615. /** @brief  Check USART Baud rate.
  616.   * @param  __BAUDRATE__ Baudrate specified by the user.
  617.   *         The maximum Baud Rate is derived from the maximum clock on F0 (i.e. 48 MHz)
  618.   *         divided by the smallest oversampling used on the USART (i.e. 8)
  619.   * @retval SET (__BAUDRATE__ is valid) or RESET (__BAUDRATE__ is invalid)  */
  620. #define IS_USART_BAUDRATE(__BAUDRATE__) ((__BAUDRATE__) <= 6000000U)
  621.  
  622. /**
  623.   * @brief Ensure that USART frame number of stop bits is valid.
  624.   * @param __STOPBITS__ USART frame number of stop bits.
  625.   * @retval SET (__STOPBITS__ is valid) or RESET (__STOPBITS__ is invalid)
  626.   */
  627. #if defined(USART_SMARTCARD_SUPPORT)
  628. #define IS_USART_STOPBITS(__STOPBITS__) (((__STOPBITS__) == USART_STOPBITS_0_5) || \
  629.                                          ((__STOPBITS__) == USART_STOPBITS_1)   || \
  630.                                          ((__STOPBITS__) == USART_STOPBITS_1_5) || \
  631.                                          ((__STOPBITS__) == USART_STOPBITS_2))
  632. #else
  633. #define IS_USART_STOPBITS(__STOPBITS__) (((__STOPBITS__) == USART_STOPBITS_1)   || \
  634.                                          ((__STOPBITS__) == USART_STOPBITS_2))
  635. #endif /* USART_SMARTCARD_SUPPORT */
  636.  
  637. /**
  638.   * @brief Ensure that USART frame parity is valid.
  639.   * @param __PARITY__ USART frame parity.
  640.   * @retval SET (__PARITY__ is valid) or RESET (__PARITY__ is invalid)
  641.   */
  642. #define IS_USART_PARITY(__PARITY__) (((__PARITY__) == USART_PARITY_NONE) || \
  643.                                      ((__PARITY__) == USART_PARITY_EVEN) || \
  644.                                      ((__PARITY__) == USART_PARITY_ODD))
  645.  
  646. /**
  647.   * @brief Ensure that USART communication mode is valid.
  648.   * @param __MODE__ USART communication mode.
  649.   * @retval SET (__MODE__ is valid) or RESET (__MODE__ is invalid)
  650.   */
  651. #define IS_USART_MODE(__MODE__) ((((__MODE__) & 0xFFFFFFF3U) == 0x00U) && ((__MODE__) != 0x00U))
  652.  
  653. /**
  654.   * @brief Ensure that USART clock state is valid.
  655.   * @param __CLOCK__ USART clock state.
  656.   * @retval SET (__CLOCK__ is valid) or RESET (__CLOCK__ is invalid)
  657.   */
  658. #define IS_USART_CLOCK(__CLOCK__) (((__CLOCK__) == USART_CLOCK_DISABLE) || \
  659.                                    ((__CLOCK__) == USART_CLOCK_ENABLE))
  660.  
  661. /**
  662.   * @brief Ensure that USART frame polarity is valid.
  663.   * @param __CPOL__ USART frame polarity.
  664.   * @retval SET (__CPOL__ is valid) or RESET (__CPOL__ is invalid)
  665.   */
  666. #define IS_USART_POLARITY(__CPOL__) (((__CPOL__) == USART_POLARITY_LOW) || ((__CPOL__) == USART_POLARITY_HIGH))
  667.  
  668. /**
  669.   * @brief Ensure that USART frame phase is valid.
  670.   * @param __CPHA__ USART frame phase.
  671.   * @retval SET (__CPHA__ is valid) or RESET (__CPHA__ is invalid)
  672.   */
  673. #define IS_USART_PHASE(__CPHA__) (((__CPHA__) == USART_PHASE_1EDGE) || ((__CPHA__) == USART_PHASE_2EDGE))
  674.  
  675. /**
  676.   * @brief Ensure that USART frame last bit clock pulse setting is valid.
  677.   * @param __LASTBIT__ USART frame last bit clock pulse setting.
  678.   * @retval SET (__LASTBIT__ is valid) or RESET (__LASTBIT__ is invalid)
  679.   */
  680. #define IS_USART_LASTBIT(__LASTBIT__) (((__LASTBIT__) == USART_LASTBIT_DISABLE) || \
  681.                                        ((__LASTBIT__) == USART_LASTBIT_ENABLE))
  682.  
  683. /**
  684.   * @brief Ensure that USART request parameter is valid.
  685.   * @param __PARAM__ USART request parameter.
  686.   * @retval SET (__PARAM__ is valid) or RESET (__PARAM__ is invalid)
  687.   */
  688. #if defined(USART_RQR_TXFRQ)
  689. #define IS_USART_REQUEST_PARAMETER(__PARAM__) (((__PARAM__) == USART_RXDATA_FLUSH_REQUEST) || \
  690.                                                ((__PARAM__) == USART_TXDATA_FLUSH_REQUEST))
  691. #else
  692. #define IS_USART_REQUEST_PARAMETER(__PARAM__) ((__PARAM__) == USART_RXDATA_FLUSH_REQUEST)
  693. #endif /* USART_RQR_TXFRQ */
  694.  
  695. /**
  696.   * @}
  697.   */
  698.  
  699. /* Include USART HAL Extended module */
  700. #include "stm32f0xx_hal_usart_ex.h"
  701.  
  702. /* Exported functions --------------------------------------------------------*/
  703. /** @addtogroup USART_Exported_Functions USART Exported Functions
  704.   * @{
  705.   */
  706.  
  707. /** @addtogroup USART_Exported_Functions_Group1 Initialization and de-initialization functions
  708.   * @{
  709.   */
  710.  
  711. /* Initialization and de-initialization functions  ****************************/
  712. HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart);
  713. HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart);
  714. void HAL_USART_MspInit(USART_HandleTypeDef *husart);
  715. void HAL_USART_MspDeInit(USART_HandleTypeDef *husart);
  716.  
  717. /* Callbacks Register/UnRegister functions  ***********************************/
  718. #if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
  719. HAL_StatusTypeDef HAL_USART_RegisterCallback(USART_HandleTypeDef *husart, HAL_USART_CallbackIDTypeDef CallbackID,
  720.                                              pUSART_CallbackTypeDef pCallback);
  721. HAL_StatusTypeDef HAL_USART_UnRegisterCallback(USART_HandleTypeDef *husart, HAL_USART_CallbackIDTypeDef CallbackID);
  722. #endif /* USE_HAL_USART_REGISTER_CALLBACKS */
  723.  
  724. /**
  725.   * @}
  726.   */
  727.  
  728. /** @addtogroup USART_Exported_Functions_Group2 IO operation functions
  729.   * @{
  730.   */
  731.  
  732. /* IO operation functions *****************************************************/
  733. HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout);
  734. HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
  735. HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData,
  736.                                             uint16_t Size, uint32_t Timeout);
  737. HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
  738. HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
  739. HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData,
  740.                                                uint16_t Size);
  741. HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
  742. HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
  743. HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData,
  744.                                                 uint16_t Size);
  745. HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart);
  746. HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart);
  747. HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart);
  748. /* Transfer Abort functions */
  749. HAL_StatusTypeDef HAL_USART_Abort(USART_HandleTypeDef *husart);
  750. HAL_StatusTypeDef HAL_USART_Abort_IT(USART_HandleTypeDef *husart);
  751.  
  752. void HAL_USART_IRQHandler(USART_HandleTypeDef *husart);
  753. void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart);
  754. void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart);
  755. void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart);
  756. void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart);
  757. void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart);
  758. void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart);
  759. void HAL_USART_AbortCpltCallback(USART_HandleTypeDef *husart);
  760.  
  761. /**
  762.   * @}
  763.   */
  764.  
  765. /** @addtogroup USART_Exported_Functions_Group4 Peripheral State and Error functions
  766.   * @{
  767.   */
  768.  
  769. /* Peripheral State and Error functions ***************************************/
  770. HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart);
  771. uint32_t               HAL_USART_GetError(USART_HandleTypeDef *husart);
  772.  
  773. /**
  774.   * @}
  775.   */
  776.  
  777. /**
  778.   * @}
  779.   */
  780.  
  781. /**
  782.   * @}
  783.   */
  784.  
  785. /**
  786.   * @}
  787.   */
  788.  
  789. #ifdef __cplusplus
  790. }
  791. #endif
  792.  
  793. #endif /* STM32F0xx_HAL_USART_H */
  794.  
  795. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  796.