2 ******************************************************************************
3 * @file stm32l1xx_hal_usart.h
4 * @author MCD Application Team
6 * @date 5-September-2014
7 * @brief This file contains all the functions prototypes for the USART
9 ******************************************************************************
12 * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
14 * Redistribution and use in source and binary forms, with or without modification,
15 * are permitted provided that the following conditions are met:
16 * 1. Redistributions of source code must retain the above copyright notice,
17 * this list of conditions and the following disclaimer.
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19 * this list of conditions and the following disclaimer in the documentation
20 * and/or other materials provided with the distribution.
21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 ******************************************************************************
39 /* Define to prevent recursive inclusion -------------------------------------*/
40 #ifndef __STM32L1xx_HAL_USART_H
41 #define __STM32L1xx_HAL_USART_H
47 /* Includes ------------------------------------------------------------------*/
48 #include "stm32l1xx_hal_def.h"
50 /** @addtogroup STM32L1xx_HAL_Driver
58 /* Exported types ------------------------------------------------------------*/
59 /** @defgroup USART_Exported_Types USART Exported Types
65 * @brief USART Init Structure definition
69 uint32_t BaudRate; /*!< This member configures the Usart communication baud rate.
70 The baud rate is computed using the following formula:
71 - IntegerDivider = ((PCLKx) / (8 * (husart->Init.BaudRate)))
72 - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8) + 0.5 */
74 uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received in a frame.
75 This parameter can be a value of @ref USART_Word_Length */
77 uint32_t StopBits; /*!< Specifies the number of stop bits transmitted.
78 This parameter can be a value of @ref USART_Stop_Bits */
80 uint32_t Parity; /*!< Specifies the parity mode.
81 This parameter can be a value of @ref USART_Parity
82 @note When parity is enabled, the computed parity is inserted
83 at the MSB position of the transmitted data (9th bit when
84 the word length is set to 9 data bits; 8th bit when the
85 word length is set to 8 data bits). */
87 uint32_t Mode; /*!< Specifies wether the Receive or Transmit mode is enabled or disabled.
88 This parameter can be a value of @ref USART_Mode */
90 uint32_t CLKPolarity; /*!< Specifies the steady state of the serial clock.
91 This parameter can be a value of @ref USART_Clock_Polarity */
93 uint32_t CLKPhase; /*!< Specifies the clock transition on which the bit capture is made.
94 This parameter can be a value of @ref USART_Clock_Phase */
96 uint32_t CLKLastBit; /*!< Specifies whether the clock pulse corresponding to the last transmitted
97 data bit (MSB) has to be output on the SCLK pin in synchronous mode.
98 This parameter can be a value of @ref USART_Last_Bit */
102 * @brief HAL State structures definition
106 HAL_USART_STATE_RESET = 0x00, /*!< Peripheral is not initialized */
107 HAL_USART_STATE_READY = 0x01, /*!< Peripheral Initialized and ready for use */
108 HAL_USART_STATE_BUSY = 0x02, /*!< an internal process is ongoing */
109 HAL_USART_STATE_BUSY_TX = 0x12, /*!< Data Transmission process is ongoing */
110 HAL_USART_STATE_BUSY_RX = 0x22, /*!< Data Reception process is ongoing */
111 HAL_USART_STATE_BUSY_TX_RX = 0x32, /*!< Data Transmission Reception process is ongoing */
112 HAL_USART_STATE_TIMEOUT = 0x03, /*!< Timeout state */
113 HAL_USART_STATE_ERROR = 0x04 /*!< Error */
114 }HAL_USART_StateTypeDef;
117 * @brief HAL USART Error Code structure definition
121 HAL_USART_ERROR_NONE = 0x00, /*!< No error */
122 HAL_USART_ERROR_PE = 0x01, /*!< Parity error */
123 HAL_USART_ERROR_NE = 0x02, /*!< Noise error */
124 HAL_USART_ERROR_FE = 0x04, /*!< frame error */
125 HAL_USART_ERROR_ORE = 0x08, /*!< Overrun error */
126 HAL_USART_ERROR_DMA = 0x10 /*!< DMA transfer error */
127 }HAL_USART_ErrorTypeDef;
130 * @brief USART handle Structure definition
134 USART_TypeDef *Instance; /* USART registers base address */
136 USART_InitTypeDef Init; /* Usart communication parameters */
138 uint8_t *pTxBuffPtr; /* Pointer to Usart Tx transfer Buffer */
140 uint16_t TxXferSize; /* Usart Tx Transfer size */
142 __IO uint16_t TxXferCount; /* Usart Tx Transfer Counter */
144 uint8_t *pRxBuffPtr; /* Pointer to Usart Rx transfer Buffer */
146 uint16_t RxXferSize; /* Usart Rx Transfer size */
148 __IO uint16_t RxXferCount; /* Usart Rx Transfer Counter */
150 DMA_HandleTypeDef *hdmatx; /* Usart Tx DMA Handle parameters */
152 DMA_HandleTypeDef *hdmarx; /* Usart Rx DMA Handle parameters */
154 HAL_LockTypeDef Lock; /* Locking object */
156 __IO HAL_USART_StateTypeDef State; /* Usart communication state */
158 __IO HAL_USART_ErrorTypeDef ErrorCode; /* USART Error code */
160 }USART_HandleTypeDef;
166 /* Exported constants --------------------------------------------------------*/
167 /** @defgroup USART_Exported_Constants USART Exported constants
171 /** @defgroup USART_Word_Length USART Word Length
174 #define USART_WORDLENGTH_8B ((uint32_t)0x00000000)
175 #define USART_WORDLENGTH_9B ((uint32_t)USART_CR1_M)
176 #define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WORDLENGTH_8B) || \
177 ((LENGTH) == USART_WORDLENGTH_9B))
182 /** @defgroup USART_Stop_Bits USART Number of Stop Bits
185 #define USART_STOPBITS_1 ((uint32_t)0x00000000)
186 #define USART_STOPBITS_0_5 ((uint32_t)USART_CR2_STOP_0)
187 #define USART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1)
188 #define USART_STOPBITS_1_5 ((uint32_t)(USART_CR2_STOP_0 | USART_CR2_STOP_1))
189 #define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_STOPBITS_1) || \
190 ((STOPBITS) == USART_STOPBITS_0_5) || \
191 ((STOPBITS) == USART_STOPBITS_1_5) || \
192 ((STOPBITS) == USART_STOPBITS_2))
197 /** @defgroup USART_Parity USART Parity
200 #define USART_PARITY_NONE ((uint32_t)0x00000000)
201 #define USART_PARITY_EVEN ((uint32_t)USART_CR1_PCE)
202 #define USART_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS))
203 #define IS_USART_PARITY(PARITY) (((PARITY) == USART_PARITY_NONE) || \
204 ((PARITY) == USART_PARITY_EVEN) || \
205 ((PARITY) == USART_PARITY_ODD))
210 /** @defgroup USART_Mode USART Mode
213 #define USART_MODE_RX ((uint32_t)USART_CR1_RE)
214 #define USART_MODE_TX ((uint32_t)USART_CR1_TE)
215 #define USART_MODE_TX_RX ((uint32_t)(USART_CR1_TE |USART_CR1_RE))
216 #define IS_USART_MODE(MODE) ((((MODE) & (uint32_t)0x0000FFF3) == 0x00) && ((MODE) != (uint32_t)0x00000000))
221 /** @defgroup USART_Clock USART Clock
224 #define USART_CLOCK_DISABLED ((uint32_t)0x00000000)
225 #define USART_CLOCK_ENABLED ((uint32_t)USART_CR2_CLKEN)
226 #define IS_USART_CLOCK(CLOCK) (((CLOCK) == USART_CLOCK_DISABLED) || \
227 ((CLOCK) == USART_CLOCK_ENABLED))
232 /** @defgroup USART_Clock_Polarity USART Clock Polarity
235 #define USART_POLARITY_LOW ((uint32_t)0x00000000)
236 #define USART_POLARITY_HIGH ((uint32_t)USART_CR2_CPOL)
237 #define IS_USART_POLARITY(CPOL) (((CPOL) == USART_POLARITY_LOW) || ((CPOL) == USART_POLARITY_HIGH))
242 /** @defgroup USART_Clock_Phase USART Clock Phase
245 #define USART_PHASE_1EDGE ((uint32_t)0x00000000)
246 #define USART_PHASE_2EDGE ((uint32_t)USART_CR2_CPHA)
247 #define IS_USART_PHASE(CPHA) (((CPHA) == USART_PHASE_1EDGE) || ((CPHA) == USART_PHASE_2EDGE))
252 /** @defgroup USART_Last_Bit USART Last Bit
255 #define USART_LASTBIT_DISABLE ((uint32_t)0x00000000)
256 #define USART_LASTBIT_ENABLE ((uint32_t)USART_CR2_LBCL)
257 #define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LASTBIT_DISABLE) || \
258 ((LASTBIT) == USART_LASTBIT_ENABLE))
263 /** @defgroup USART_NACK_State USART NACK State
266 #define USARTNACK_ENABLED ((uint32_t)USART_CR3_NACK)
267 #define USARTNACK_DISABLED ((uint32_t)0x00000000)
268 #define IS_USART_NACK_STATE(NACK) (((NACK) == USARTNACK_ENABLED) || \
269 ((NACK) == USARTNACK_DISABLED))
274 /** @defgroup USART_Flags USART Flags
275 * Elements values convention: 0xXXXX
276 * - 0xXXXX : Flag mask in the SR register
280 #define USART_FLAG_CTS ((uint32_t)USART_SR_CTS)
281 #define USART_FLAG_LBD ((uint32_t)USART_SR_LBD)
282 #define USART_FLAG_TXE ((uint32_t)USART_SR_TXE)
283 #define USART_FLAG_TC ((uint32_t)USART_SR_TC)
284 #define USART_FLAG_RXNE ((uint32_t)USART_SR_RXNE)
285 #define USART_FLAG_IDLE ((uint32_t)USART_SR_IDLE)
286 #define USART_FLAG_ORE ((uint32_t)USART_SR_ORE)
287 #define USART_FLAG_NE ((uint32_t)USART_SR_NE)
288 #define USART_FLAG_FE ((uint32_t)USART_SR_FE)
289 #define USART_FLAG_PE ((uint32_t)USART_SR_PE)
294 /** @defgroup USART_Interrupt_definition USART Interrupts Definition
295 * Elements values convention: 0xY000XXXX
296 * - XXXX : Interrupt mask in the XX register
297 * - Y : Interrupt source register (4bits)
304 #define USART_IT_PE ((uint32_t)0x10000100)
305 #define USART_IT_TXE ((uint32_t)0x10000080)
306 #define USART_IT_TC ((uint32_t)0x10000040)
307 #define USART_IT_RXNE ((uint32_t)0x10000020)
308 #define USART_IT_IDLE ((uint32_t)0x10000010)
310 #define USART_IT_LBD ((uint32_t)0x20000040)
311 #define USART_IT_CTS ((uint32_t)0x30000400)
313 #define USART_IT_ERR ((uint32_t)0x30000001)
320 /** @defgroup USART_Interruption_Mask USART interruptions flag mask
323 #define USART_IT_MASK ((uint32_t)0x0000FFFF)
332 /* Exported macro ------------------------------------------------------------*/
333 /** @defgroup USART_Exported_Macros USART Exported Macros
338 /** @brief Reset USART handle state
339 * @param __HANDLE__: specifies the USART Handle.
340 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
343 #define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_USART_STATE_RESET)
345 /** @brief Checks whether the specified USART flag is set or not.
346 * @param __HANDLE__: specifies the USART Handle.
347 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
348 * @param __FLAG__: specifies the flag to check.
349 * This parameter can be one of the following values:
350 * @arg USART_FLAG_TXE: Transmit data register empty flag
351 * @arg USART_FLAG_TC: Transmission Complete flag
352 * @arg USART_FLAG_RXNE: Receive data register not empty flag
353 * @arg USART_FLAG_IDLE: Idle Line detection flag
354 * @arg USART_FLAG_ORE: OverRun Error flag
355 * @arg USART_FLAG_NE: Noise Error flag
356 * @arg USART_FLAG_FE: Framing Error flag
357 * @arg USART_FLAG_PE: Parity Error flag
358 * @retval The new state of __FLAG__ (TRUE or FALSE).
361 #define __HAL_USART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
363 /** @brief Clears the specified USART pending flags.
364 * @param __HANDLE__: specifies the USART Handle.
365 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
366 * @param __FLAG__: specifies the flag to check.
367 * This parameter can be any combination of the following values:
368 * @arg USART_FLAG_TC: Transmission Complete flag.
369 * @arg USART_FLAG_RXNE: Receive data register not empty flag.
371 * @note PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun
372 * error) and IDLE (Idle line detected) flags are cleared by software
373 * sequence: a read operation to USART_SR register followed by a read
374 * operation to USART_DR register.
375 * @note RXNE flag can be also cleared by a read to the USART_DR register.
376 * @note TC flag can be also cleared by software sequence: a read operation to
377 * USART_SR register followed by a write operation to USART_DR register.
378 * @note TXE flag is cleared only by a write to the USART_DR register.
382 #define __HAL_USART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))
384 /** @brief Clear the USART PE pending flag.
385 * @param __HANDLE__: specifies the USART Handle.
386 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
389 #define __HAL_USART_CLEAR_PEFLAG(__HANDLE__) do{(__HANDLE__)->Instance->SR;\
390 (__HANDLE__)->Instance->DR;}while(0)
391 /** @brief Clear the USART FE pending flag.
392 * @param __HANDLE__: specifies the USART Handle.
393 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
396 #define __HAL_USART_CLEAR_FEFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)
398 /** @brief Clear the USART NE pending flag.
399 * @param __HANDLE__: specifies the USART Handle.
400 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
403 #define __HAL_USART_CLEAR_NEFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)
405 /** @brief Clear the USART ORE pending flag.
406 * @param __HANDLE__: specifies the USART Handle.
407 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
410 #define __HAL_USART_CLEAR_OREFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)
412 /** @brief Clear the USART IDLE pending flag.
413 * @param __HANDLE__: specifies the USART Handle.
414 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
417 #define __HAL_USART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)
419 /** @brief Enables or disables the specified Usart interrupts.
420 * @param __HANDLE__: specifies the USART Handle.
421 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
422 * @param __INTERRUPT__: specifies the USART interrupt source to check.
423 * This parameter can be one of the following values:
424 * @arg USART_IT_TXE: Transmit Data Register empty interrupt
425 * @arg USART_IT_TC: Transmission complete interrupt
426 * @arg USART_IT_RXNE: Receive Data register not empty interrupt
427 * @arg USART_IT_IDLE: Idle line detection interrupt
428 * @arg USART_IT_PE: Parity Error interrupt
429 * @arg USART_IT_ERR: Error interrupt(Frame error, noise error, overrun error)
432 #define __HAL_USART_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28) == 1)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & USART_IT_MASK)): \
433 (((__INTERRUPT__) >> 28) == 2)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & USART_IT_MASK)): \
434 ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & USART_IT_MASK)))
435 #define __HAL_USART_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28) == 1)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & USART_IT_MASK)): \
436 (((__INTERRUPT__) >> 28) == 2)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & USART_IT_MASK)): \
437 ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & USART_IT_MASK)))
441 /** @brief Checks whether the specified Usart interrupt has occurred or not.
442 * @param __HANDLE__: specifies the USART Handle.
443 * This parameter can be USARTx where x: 1, 2 or 3 to select the USART peripheral.
444 * @param __IT__: specifies the USART interrupt source to check.
445 * This parameter can be one of the following values:
446 * @arg USART_IT_TXE: Transmit Data Register empty interrupt
447 * @arg USART_IT_TC: Transmission complete interrupt
448 * @arg USART_IT_RXNE: Receive Data register not empty interrupt
449 * @arg USART_IT_IDLE: Idle line detection interrupt
450 * @arg USART_IT_ERR: Error interrupt
451 * @arg USART_IT_PE: Parity Error interrupt
452 * @retval The new state of __IT__ (TRUE or FALSE).
454 #define __HAL_USART_GET_IT_SOURCE(__HANDLE__, __IT__) (((((__IT__) >> 28) == 1)? (__HANDLE__)->Instance->CR1:(((((uint32_t)(__IT__)) >> 28) == 2)? \
455 (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & USART_IT_MASK))
457 /** @brief Enable USART
458 * @param __HANDLE__: specifies the USART Handle.
459 * The Handle Instance can be USARTx where x: 1, 2, 3 to select the USART peripheral
462 #define __HAL_USART_ENABLE(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR1,(USART_CR1_UE))
464 /** @brief Disable USART
465 * @param __HANDLE__: specifies the USART Handle.
466 * The Handle Instance can be USARTx where x: 1, 2, 3 to select the USART peripheral
469 #define __HAL_USART_DISABLE(__HANDLE__) CLEAR_BIT((__HANDLE__)->Instance->CR1,(USART_CR1_UE))
476 /* Private macros --------------------------------------------------------*/
477 /** @defgroup USART_Private_Macros USART Private Macros
481 #define USART_DIV(__PCLK__, __BAUD__) (((__PCLK__)*25)/(4*(__BAUD__)))
482 #define USART_DIVMANT(__PCLK__, __BAUD__) (USART_DIV((__PCLK__), (__BAUD__))/100)
483 #define USART_DIVFRAQ(__PCLK__, __BAUD__) (((USART_DIV((__PCLK__), (__BAUD__)) - (USART_DIVMANT((__PCLK__), (__BAUD__)) * 100)) * 16 + 50) / 100)
484 #define USART_BRR(__PCLK__, __BAUD__) ((USART_DIVMANT((__PCLK__), (__BAUD__)) << 4)|(USART_DIVFRAQ((__PCLK__), (__BAUD__)) & 0x0F))
486 /** @brief Check USART Baud rate
487 * @param __BAUDRATE__: Baudrate specified by the user
488 * The maximum Baud Rate is derived from the maximum clock on APB (i.e. 32 MHz)
489 * divided by the smallest oversampling used on the USART (i.e. 8)
490 * @retval Test result (TRUE or FALSE)
492 #define IS_USART_BAUDRATE(__BAUDRATE__) ((__BAUDRATE__) < 4000001)
498 /* Exported functions --------------------------------------------------------*/
500 /** @addtogroup USART_Exported_Functions USART Exported Functions
504 /** @addtogroup USART_Exported_Functions_Group1 USART Initialization and de-initialization functions
508 /* Initialization and de-initialization functions ******************************/
509 HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart);
510 HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart);
511 void HAL_USART_MspInit(USART_HandleTypeDef *husart);
512 void HAL_USART_MspDeInit(USART_HandleTypeDef *husart);
518 /** @addtogroup USART_Exported_Functions_Group2 IO operation functions
522 /* IO operation functions *******************************************************/
523 HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout);
524 HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
525 HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
526 HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
527 HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
528 HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size);
529 HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
530 HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
531 HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size);
532 HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart);
533 HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart);
534 HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart);
535 void HAL_USART_IRQHandler(USART_HandleTypeDef *husart);
536 void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart);
537 void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart);
538 void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart);
539 void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart);
540 void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart);
541 void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart);
547 /* Peripheral Control functions ***********************************************/
549 /** @addtogroup USART_Exported_Functions_Group3 Peripheral State and Errors functions
553 /* Peripheral State and Error functions ***************************************/
554 HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart);
555 uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart);
577 #endif /* __STM32L1xx_HAL_USART_H */
579 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/