1 /** 2 ****************************************************************************** 3 * @file stm32l1xx_hal_uart.h 4 * @author MCD Application Team 5 * @brief Header file of UART HAL module. 6 ****************************************************************************** 7 * @attention 8 * 9 * <h2><center>© 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 __STM32L1xx_HAL_UART_H 22 #define __STM32L1xx_HAL_UART_H 23 24 #ifdef __cplusplus 25 extern "C" { 26 #endif 27 28 /* Includes ------------------------------------------------------------------*/ 29 #include "stm32l1xx_hal_def.h" 30 31 /** @addtogroup STM32L1xx_HAL_Driver 32 * @{ 33 */ 34 35 /** @addtogroup UART 36 * @{ 37 */ 38 39 /* Exported types ------------------------------------------------------------*/ 40 /** @defgroup UART_Exported_Types UART Exported Types 41 * @{ 42 */ 43 44 /** 45 * @brief UART Init Structure definition 46 */ 47 typedef struct 48 { 49 uint32_t BaudRate; /*!< This member configures the UART communication baud rate. 50 The baud rate is computed using the following formula: 51 - IntegerDivider = ((PCLKx) / (8 * (OVR8+1) * (huart->Init.BaudRate))) 52 - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8 * (OVR8+1)) + 0.5 53 Where OVR8 is the "oversampling by 8 mode" configuration bit in the CR1 register. */ 54 55 uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received in a frame. 56 This parameter can be a value of @ref UART_Word_Length */ 57 58 uint32_t StopBits; /*!< Specifies the number of stop bits transmitted. 59 This parameter can be a value of @ref UART_Stop_Bits */ 60 61 uint32_t Parity; /*!< Specifies the parity mode. 62 This parameter can be a value of @ref UART_Parity 63 @note When parity is enabled, the computed parity is inserted 64 at the MSB position of the transmitted data (9th bit when 65 the word length is set to 9 data bits; 8th bit when the 66 word length is set to 8 data bits). */ 67 68 uint32_t Mode; /*!< Specifies whether the Receive or Transmit mode is enabled or disabled. 69 This parameter can be a value of @ref UART_Mode */ 70 71 uint32_t HwFlowCtl; /*!< Specifies whether the hardware flow control mode is enabled or disabled. 72 This parameter can be a value of @ref UART_Hardware_Flow_Control */ 73 74 uint32_t OverSampling; /*!< Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher speed (up to fPCLK/8). 75 This parameter can be a value of @ref UART_Over_Sampling */ 76 } UART_InitTypeDef; 77 78 /** 79 * @brief HAL UART State structures definition 80 * @note HAL UART State value is a combination of 2 different substates: gState and RxState. 81 * - gState contains UART state information related to global Handle management 82 * and also information related to Tx operations. 83 * gState value coding follow below described bitmap : 84 * b7-b6 Error information 85 * 00 : No Error 86 * 01 : (Not Used) 87 * 10 : Timeout 88 * 11 : Error 89 * b5 Peripheral initialization status 90 * 0 : Reset (Peripheral not initialized) 91 * 1 : Init done (Peripheral initialized. HAL UART Init function already called) 92 * b4-b3 (not used) 93 * xx : Should be set to 00 94 * b2 Intrinsic process state 95 * 0 : Ready 96 * 1 : Busy (Peripheral busy with some configuration or internal operations) 97 * b1 (not used) 98 * x : Should be set to 0 99 * b0 Tx state 100 * 0 : Ready (no Tx operation ongoing) 101 * 1 : Busy (Tx operation ongoing) 102 * - RxState contains information related to Rx operations. 103 * RxState value coding follow below described bitmap : 104 * b7-b6 (not used) 105 * xx : Should be set to 00 106 * b5 Peripheral initialization status 107 * 0 : Reset (Peripheral not initialized) 108 * 1 : Init done (Peripheral initialized) 109 * b4-b2 (not used) 110 * xxx : Should be set to 000 111 * b1 Rx state 112 * 0 : Ready (no Rx operation ongoing) 113 * 1 : Busy (Rx operation ongoing) 114 * b0 (not used) 115 * x : Should be set to 0. 116 */ 117 typedef enum 118 { 119 HAL_UART_STATE_RESET = 0x00U, /*!< Peripheral is not yet Initialized 120 Value is allowed for gState and RxState */ 121 HAL_UART_STATE_READY = 0x20U, /*!< Peripheral Initialized and ready for use 122 Value is allowed for gState and RxState */ 123 HAL_UART_STATE_BUSY = 0x24U, /*!< an internal process is ongoing 124 Value is allowed for gState only */ 125 HAL_UART_STATE_BUSY_TX = 0x21U, /*!< Data Transmission process is ongoing 126 Value is allowed for gState only */ 127 HAL_UART_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing 128 Value is allowed for RxState only */ 129 HAL_UART_STATE_BUSY_TX_RX = 0x23U, /*!< Data Transmission and Reception process is ongoing 130 Not to be used for neither gState nor RxState. 131 Value is result of combination (Or) between gState and RxState values */ 132 HAL_UART_STATE_TIMEOUT = 0xA0U, /*!< Timeout state 133 Value is allowed for gState only */ 134 HAL_UART_STATE_ERROR = 0xE0U /*!< Error 135 Value is allowed for gState only */ 136 } HAL_UART_StateTypeDef; 137 138 /** 139 * @brief HAL UART Reception type definition 140 * @note HAL UART Reception type value aims to identify which type of Reception is ongoing. 141 * It is expected to admit following values : 142 * HAL_UART_RECEPTION_STANDARD = 0x00U, 143 * HAL_UART_RECEPTION_TOIDLE = 0x01U, 144 */ 145 typedef uint32_t HAL_UART_RxTypeTypeDef; 146 147 /** 148 * @brief UART handle Structure definition 149 */ 150 typedef struct __UART_HandleTypeDef 151 { 152 USART_TypeDef *Instance; /*!< UART registers base address */ 153 154 UART_InitTypeDef Init; /*!< UART communication parameters */ 155 156 uint8_t *pTxBuffPtr; /*!< Pointer to UART Tx transfer Buffer */ 157 158 uint16_t TxXferSize; /*!< UART Tx Transfer size */ 159 160 __IO uint16_t TxXferCount; /*!< UART Tx Transfer Counter */ 161 162 uint8_t *pRxBuffPtr; /*!< Pointer to UART Rx transfer Buffer */ 163 164 uint16_t RxXferSize; /*!< UART Rx Transfer size */ 165 166 __IO uint16_t RxXferCount; /*!< UART Rx Transfer Counter */ 167 168 __IO HAL_UART_RxTypeTypeDef ReceptionType; /*!< Type of ongoing reception */ 169 170 DMA_HandleTypeDef *hdmatx; /*!< UART Tx DMA Handle parameters */ 171 172 DMA_HandleTypeDef *hdmarx; /*!< UART Rx DMA Handle parameters */ 173 174 HAL_LockTypeDef Lock; /*!< Locking object */ 175 176 __IO HAL_UART_StateTypeDef gState; /*!< UART state information related to global Handle management 177 and also related to Tx operations. 178 This parameter can be a value of @ref HAL_UART_StateTypeDef */ 179 180 __IO HAL_UART_StateTypeDef RxState; /*!< UART state information related to Rx operations. 181 This parameter can be a value of @ref HAL_UART_StateTypeDef */ 182 183 __IO uint32_t ErrorCode; /*!< UART Error code */ 184 185 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 186 void (* TxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Half Complete Callback */ 187 void (* TxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Complete Callback */ 188 void (* RxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Half Complete Callback */ 189 void (* RxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Complete Callback */ 190 void (* ErrorCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Error Callback */ 191 void (* AbortCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Complete Callback */ 192 void (* AbortTransmitCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Transmit Complete Callback */ 193 void (* AbortReceiveCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Receive Complete Callback */ 194 void (* WakeupCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Wakeup Callback */ 195 void (* RxEventCallback)(struct __UART_HandleTypeDef *huart, uint16_t Pos); /*!< UART Reception Event Callback */ 196 197 void (* MspInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp Init callback */ 198 void (* MspDeInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp DeInit callback */ 199 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 200 201 } UART_HandleTypeDef; 202 203 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 204 /** 205 * @brief HAL UART Callback ID enumeration definition 206 */ 207 typedef enum 208 { 209 HAL_UART_TX_HALFCOMPLETE_CB_ID = 0x00U, /*!< UART Tx Half Complete Callback ID */ 210 HAL_UART_TX_COMPLETE_CB_ID = 0x01U, /*!< UART Tx Complete Callback ID */ 211 HAL_UART_RX_HALFCOMPLETE_CB_ID = 0x02U, /*!< UART Rx Half Complete Callback ID */ 212 HAL_UART_RX_COMPLETE_CB_ID = 0x03U, /*!< UART Rx Complete Callback ID */ 213 HAL_UART_ERROR_CB_ID = 0x04U, /*!< UART Error Callback ID */ 214 HAL_UART_ABORT_COMPLETE_CB_ID = 0x05U, /*!< UART Abort Complete Callback ID */ 215 HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID = 0x06U, /*!< UART Abort Transmit Complete Callback ID */ 216 HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID = 0x07U, /*!< UART Abort Receive Complete Callback ID */ 217 HAL_UART_WAKEUP_CB_ID = 0x08U, /*!< UART Wakeup Callback ID */ 218 219 HAL_UART_MSPINIT_CB_ID = 0x0BU, /*!< UART MspInit callback ID */ 220 HAL_UART_MSPDEINIT_CB_ID = 0x0CU /*!< UART MspDeInit callback ID */ 221 222 } HAL_UART_CallbackIDTypeDef; 223 224 /** 225 * @brief HAL UART Callback pointer definition 226 */ 227 typedef void (*pUART_CallbackTypeDef)(UART_HandleTypeDef *huart); /*!< pointer to an UART callback function */ 228 typedef void (*pUART_RxEventCallbackTypeDef)(struct __UART_HandleTypeDef *huart, uint16_t Pos); /*!< pointer to a UART Rx Event specific callback function */ 229 230 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 231 232 /** 233 * @} 234 */ 235 236 /* Exported constants --------------------------------------------------------*/ 237 /** @defgroup UART_Exported_Constants UART Exported Constants 238 * @{ 239 */ 240 241 /** @defgroup UART_Error_Code UART Error Code 242 * @{ 243 */ 244 #define HAL_UART_ERROR_NONE 0x00000000U /*!< No error */ 245 #define HAL_UART_ERROR_PE 0x00000001U /*!< Parity error */ 246 #define HAL_UART_ERROR_NE 0x00000002U /*!< Noise error */ 247 #define HAL_UART_ERROR_FE 0x00000004U /*!< Frame error */ 248 #define HAL_UART_ERROR_ORE 0x00000008U /*!< Overrun error */ 249 #define HAL_UART_ERROR_DMA 0x00000010U /*!< DMA transfer error */ 250 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 251 #define HAL_UART_ERROR_INVALID_CALLBACK 0x00000020U /*!< Invalid Callback error */ 252 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 253 /** 254 * @} 255 */ 256 257 /** @defgroup UART_Word_Length UART Word Length 258 * @{ 259 */ 260 #define UART_WORDLENGTH_8B 0x00000000U 261 #define UART_WORDLENGTH_9B ((uint32_t)USART_CR1_M) 262 /** 263 * @} 264 */ 265 266 /** @defgroup UART_Stop_Bits UART Number of Stop Bits 267 * @{ 268 */ 269 #define UART_STOPBITS_1 0x00000000U 270 #define UART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1) 271 /** 272 * @} 273 */ 274 275 /** @defgroup UART_Parity UART Parity 276 * @{ 277 */ 278 #define UART_PARITY_NONE 0x00000000U 279 #define UART_PARITY_EVEN ((uint32_t)USART_CR1_PCE) 280 #define UART_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS)) 281 /** 282 * @} 283 */ 284 285 /** @defgroup UART_Hardware_Flow_Control UART Hardware Flow Control 286 * @{ 287 */ 288 #define UART_HWCONTROL_NONE 0x00000000U 289 #define UART_HWCONTROL_RTS ((uint32_t)USART_CR3_RTSE) 290 #define UART_HWCONTROL_CTS ((uint32_t)USART_CR3_CTSE) 291 #define UART_HWCONTROL_RTS_CTS ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE)) 292 /** 293 * @} 294 */ 295 296 /** @defgroup UART_Mode UART Transfer Mode 297 * @{ 298 */ 299 #define UART_MODE_RX ((uint32_t)USART_CR1_RE) 300 #define UART_MODE_TX ((uint32_t)USART_CR1_TE) 301 #define UART_MODE_TX_RX ((uint32_t)(USART_CR1_TE | USART_CR1_RE)) 302 /** 303 * @} 304 */ 305 306 /** @defgroup UART_State UART State 307 * @{ 308 */ 309 #define UART_STATE_DISABLE 0x00000000U 310 #define UART_STATE_ENABLE ((uint32_t)USART_CR1_UE) 311 /** 312 * @} 313 */ 314 315 /** @defgroup UART_Over_Sampling UART Over Sampling 316 * @{ 317 */ 318 #define UART_OVERSAMPLING_16 0x00000000U 319 #define UART_OVERSAMPLING_8 ((uint32_t)USART_CR1_OVER8) 320 /** 321 * @} 322 */ 323 324 /** @defgroup UART_LIN_Break_Detection_Length UART LIN Break Detection Length 325 * @{ 326 */ 327 #define UART_LINBREAKDETECTLENGTH_10B 0x00000000U 328 #define UART_LINBREAKDETECTLENGTH_11B ((uint32_t)USART_CR2_LBDL) 329 /** 330 * @} 331 */ 332 333 /** @defgroup UART_WakeUp_functions UART Wakeup Functions 334 * @{ 335 */ 336 #define UART_WAKEUPMETHOD_IDLELINE 0x00000000U 337 #define UART_WAKEUPMETHOD_ADDRESSMARK ((uint32_t)USART_CR1_WAKE) 338 /** 339 * @} 340 */ 341 342 /** @defgroup UART_Flags UART FLags 343 * Elements values convention: 0xXXXX 344 * - 0xXXXX : Flag mask in the SR register 345 * @{ 346 */ 347 #define UART_FLAG_CTS ((uint32_t)USART_SR_CTS) 348 #define UART_FLAG_LBD ((uint32_t)USART_SR_LBD) 349 #define UART_FLAG_TXE ((uint32_t)USART_SR_TXE) 350 #define UART_FLAG_TC ((uint32_t)USART_SR_TC) 351 #define UART_FLAG_RXNE ((uint32_t)USART_SR_RXNE) 352 #define UART_FLAG_IDLE ((uint32_t)USART_SR_IDLE) 353 #define UART_FLAG_ORE ((uint32_t)USART_SR_ORE) 354 #define UART_FLAG_NE ((uint32_t)USART_SR_NE) 355 #define UART_FLAG_FE ((uint32_t)USART_SR_FE) 356 #define UART_FLAG_PE ((uint32_t)USART_SR_PE) 357 /** 358 * @} 359 */ 360 361 /** @defgroup UART_Interrupt_definition UART Interrupt Definitions 362 * Elements values convention: 0xY000XXXX 363 * - XXXX : Interrupt mask (16 bits) in the Y register 364 * - Y : Interrupt source register (2bits) 365 * - 0001: CR1 register 366 * - 0010: CR2 register 367 * - 0011: CR3 register 368 * @{ 369 */ 370 371 #define UART_IT_PE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_PEIE)) 372 #define UART_IT_TXE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TXEIE)) 373 #define UART_IT_TC ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TCIE)) 374 #define UART_IT_RXNE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_RXNEIE)) 375 #define UART_IT_IDLE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_IDLEIE)) 376 377 #define UART_IT_LBD ((uint32_t)(UART_CR2_REG_INDEX << 28U | USART_CR2_LBDIE)) 378 379 #define UART_IT_CTS ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_CTSIE)) 380 #define UART_IT_ERR ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_EIE)) 381 /** 382 * @} 383 */ 384 385 /** @defgroup UART_RECEPTION_TYPE_Values UART Reception type values 386 * @{ 387 */ 388 #define HAL_UART_RECEPTION_STANDARD (0x00000000U) /*!< Standard reception */ 389 #define HAL_UART_RECEPTION_TOIDLE (0x00000001U) /*!< Reception till completion or IDLE event */ 390 /** 391 * @} 392 */ 393 394 /** 395 * @} 396 */ 397 398 /* Exported macro ------------------------------------------------------------*/ 399 /** @defgroup UART_Exported_Macros UART Exported Macros 400 * @{ 401 */ 402 403 /** @brief Reset UART handle gstate & RxState 404 * @param __HANDLE__ specifies the UART Handle. 405 * UART Handle selects the USARTx or UARTy peripheral 406 * (USART,UART availability and x,y values depending on device). 407 * @retval None 408 */ 409 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 410 #define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \ 411 (__HANDLE__)->gState = HAL_UART_STATE_RESET; \ 412 (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \ 413 (__HANDLE__)->MspInitCallback = NULL; \ 414 (__HANDLE__)->MspDeInitCallback = NULL; \ 415 } while(0U) 416 #else 417 #define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \ 418 (__HANDLE__)->gState = HAL_UART_STATE_RESET; \ 419 (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \ 420 } while(0U) 421 #endif /*USE_HAL_UART_REGISTER_CALLBACKS */ 422 423 /** @brief Flushes the UART DR register 424 * @param __HANDLE__ specifies the UART Handle. 425 * UART Handle selects the USARTx or UARTy peripheral 426 * (USART,UART availability and x,y values depending on device). 427 */ 428 #define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR) 429 430 /** @brief Checks whether the specified UART flag is set or not. 431 * @param __HANDLE__ specifies the UART Handle. 432 * UART Handle selects the USARTx or UARTy peripheral 433 * (USART,UART availability and x,y values depending on device). 434 * @param __FLAG__ specifies the flag to check. 435 * This parameter can be one of the following values: 436 * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5) 437 * @arg UART_FLAG_LBD: LIN Break detection flag 438 * @arg UART_FLAG_TXE: Transmit data register empty flag 439 * @arg UART_FLAG_TC: Transmission Complete flag 440 * @arg UART_FLAG_RXNE: Receive data register not empty flag 441 * @arg UART_FLAG_IDLE: Idle Line detection flag 442 * @arg UART_FLAG_ORE: Overrun Error flag 443 * @arg UART_FLAG_NE: Noise Error flag 444 * @arg UART_FLAG_FE: Framing Error flag 445 * @arg UART_FLAG_PE: Parity Error flag 446 * @retval The new state of __FLAG__ (TRUE or FALSE). 447 */ 448 #define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__)) 449 450 /** @brief Clears the specified UART pending flag. 451 * @param __HANDLE__ specifies the UART Handle. 452 * UART Handle selects the USARTx or UARTy peripheral 453 * (USART,UART availability and x,y values depending on device). 454 * @param __FLAG__ specifies the flag to check. 455 * This parameter can be any combination of the following values: 456 * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5). 457 * @arg UART_FLAG_LBD: LIN Break detection flag. 458 * @arg UART_FLAG_TC: Transmission Complete flag. 459 * @arg UART_FLAG_RXNE: Receive data register not empty flag. 460 * 461 * @note PE (Parity error), FE (Framing error), NE (Noise error), ORE (Overrun 462 * error) and IDLE (Idle line detected) flags are cleared by software 463 * sequence: a read operation to USART_SR register followed by a read 464 * operation to USART_DR register. 465 * @note RXNE flag can be also cleared by a read to the USART_DR register. 466 * @note TC flag can be also cleared by software sequence: a read operation to 467 * USART_SR register followed by a write operation to USART_DR register. 468 * @note TXE flag is cleared only by a write to the USART_DR register. 469 * 470 * @retval None 471 */ 472 #define __HAL_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__)) 473 474 /** @brief Clears the UART PE pending flag. 475 * @param __HANDLE__ specifies the UART Handle. 476 * UART Handle selects the USARTx or UARTy peripheral 477 * (USART,UART availability and x,y values depending on device). 478 * @retval None 479 */ 480 #define __HAL_UART_CLEAR_PEFLAG(__HANDLE__) \ 481 do{ \ 482 __IO uint32_t tmpreg = 0x00U; \ 483 tmpreg = (__HANDLE__)->Instance->SR; \ 484 tmpreg = (__HANDLE__)->Instance->DR; \ 485 UNUSED(tmpreg); \ 486 } while(0U) 487 488 /** @brief Clears the UART FE pending flag. 489 * @param __HANDLE__ specifies the UART Handle. 490 * UART Handle selects the USARTx or UARTy peripheral 491 * (USART,UART availability and x,y values depending on device). 492 * @retval None 493 */ 494 #define __HAL_UART_CLEAR_FEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 495 496 /** @brief Clears the UART NE pending flag. 497 * @param __HANDLE__ specifies the UART Handle. 498 * UART Handle selects the USARTx or UARTy peripheral 499 * (USART,UART availability and x,y values depending on device). 500 * @retval None 501 */ 502 #define __HAL_UART_CLEAR_NEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 503 504 /** @brief Clears the UART ORE pending flag. 505 * @param __HANDLE__ specifies the UART Handle. 506 * UART Handle selects the USARTx or UARTy peripheral 507 * (USART,UART availability and x,y values depending on device). 508 * @retval None 509 */ 510 #define __HAL_UART_CLEAR_OREFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 511 512 /** @brief Clears the UART IDLE pending flag. 513 * @param __HANDLE__ specifies the UART Handle. 514 * UART Handle selects the USARTx or UARTy peripheral 515 * (USART,UART availability and x,y values depending on device). 516 * @retval None 517 */ 518 #define __HAL_UART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 519 520 /** @brief Enable the specified UART interrupt. 521 * @param __HANDLE__ specifies the UART Handle. 522 * UART Handle selects the USARTx or UARTy peripheral 523 * (USART,UART availability and x,y values depending on device). 524 * @param __INTERRUPT__ specifies the UART interrupt source to enable. 525 * This parameter can be one of the following values: 526 * @arg UART_IT_CTS: CTS change interrupt 527 * @arg UART_IT_LBD: LIN Break detection interrupt 528 * @arg UART_IT_TXE: Transmit Data Register empty interrupt 529 * @arg UART_IT_TC: Transmission complete interrupt 530 * @arg UART_IT_RXNE: Receive Data register not empty interrupt 531 * @arg UART_IT_IDLE: Idle line detection interrupt 532 * @arg UART_IT_PE: Parity Error interrupt 533 * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) 534 * @retval None 535 */ 536 #define __HAL_UART_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & UART_IT_MASK)): \ 537 (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & UART_IT_MASK)): \ 538 ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & UART_IT_MASK))) 539 540 /** @brief Disable the specified UART interrupt. 541 * @param __HANDLE__ specifies the UART Handle. 542 * UART Handle selects the USARTx or UARTy peripheral 543 * (USART,UART availability and x,y values depending on device). 544 * @param __INTERRUPT__ specifies the UART interrupt source to disable. 545 * This parameter can be one of the following values: 546 * @arg UART_IT_CTS: CTS change interrupt 547 * @arg UART_IT_LBD: LIN Break detection interrupt 548 * @arg UART_IT_TXE: Transmit Data Register empty interrupt 549 * @arg UART_IT_TC: Transmission complete interrupt 550 * @arg UART_IT_RXNE: Receive Data register not empty interrupt 551 * @arg UART_IT_IDLE: Idle line detection interrupt 552 * @arg UART_IT_PE: Parity Error interrupt 553 * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) 554 * @retval None 555 */ 556 #define __HAL_UART_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & UART_IT_MASK)): \ 557 (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & UART_IT_MASK)): \ 558 ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK))) 559 560 /** @brief Checks whether the specified UART interrupt source is enabled or not. 561 * @param __HANDLE__ specifies the UART Handle. 562 * UART Handle selects the USARTx or UARTy peripheral 563 * (USART,UART availability and x,y values depending on device). 564 * @param __IT__ specifies the UART interrupt source to check. 565 * This parameter can be one of the following values: 566 * @arg UART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) 567 * @arg UART_IT_LBD: LIN Break detection interrupt 568 * @arg UART_IT_TXE: Transmit Data Register empty interrupt 569 * @arg UART_IT_TC: Transmission complete interrupt 570 * @arg UART_IT_RXNE: Receive Data register not empty interrupt 571 * @arg UART_IT_IDLE: Idle line detection interrupt 572 * @arg UART_IT_ERR: Error interrupt 573 * @retval The new state of __IT__ (TRUE or FALSE). 574 */ 575 #define __HAL_UART_GET_IT_SOURCE(__HANDLE__, __IT__) (((((__IT__) >> 28U) == UART_CR1_REG_INDEX)? (__HANDLE__)->Instance->CR1:(((((uint32_t)(__IT__)) >> 28U) == UART_CR2_REG_INDEX)? \ 576 (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & UART_IT_MASK)) 577 578 /** @brief Enable CTS flow control 579 * @note This macro allows to enable CTS hardware flow control for a given UART instance, 580 * without need to call HAL_UART_Init() function. 581 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 582 * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need 583 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 584 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 585 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 586 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 587 * @param __HANDLE__ specifies the UART Handle. 588 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 589 * It is used to select the USART peripheral (USART availability and x value depending on device). 590 * @retval None 591 */ 592 #define __HAL_UART_HWCONTROL_CTS_ENABLE(__HANDLE__) \ 593 do{ \ 594 SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ 595 (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_CTSE; \ 596 } while(0U) 597 598 /** @brief Disable CTS flow control 599 * @note This macro allows to disable CTS hardware flow control for a given UART instance, 600 * without need to call HAL_UART_Init() function. 601 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 602 * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need 603 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 604 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 605 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 606 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 607 * @param __HANDLE__ specifies the UART Handle. 608 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 609 * It is used to select the USART peripheral (USART availability and x value depending on device). 610 * @retval None 611 */ 612 #define __HAL_UART_HWCONTROL_CTS_DISABLE(__HANDLE__) \ 613 do{ \ 614 CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ 615 (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_CTSE); \ 616 } while(0U) 617 618 /** @brief Enable RTS flow control 619 * This macro allows to enable RTS hardware flow control for a given UART instance, 620 * without need to call HAL_UART_Init() function. 621 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 622 * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need 623 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 624 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 625 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 626 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 627 * @param __HANDLE__ specifies the UART Handle. 628 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 629 * It is used to select the USART peripheral (USART availability and x value depending on device). 630 * @retval None 631 */ 632 #define __HAL_UART_HWCONTROL_RTS_ENABLE(__HANDLE__) \ 633 do{ \ 634 SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE); \ 635 (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_RTSE; \ 636 } while(0U) 637 638 /** @brief Disable RTS flow control 639 * This macro allows to disable RTS hardware flow control for a given UART instance, 640 * without need to call HAL_UART_Init() function. 641 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 642 * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need 643 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 644 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 645 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 646 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 647 * @param __HANDLE__ specifies the UART Handle. 648 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 649 * It is used to select the USART peripheral (USART availability and x value depending on device). 650 * @retval None 651 */ 652 #define __HAL_UART_HWCONTROL_RTS_DISABLE(__HANDLE__) \ 653 do{ \ 654 CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE);\ 655 (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_RTSE); \ 656 } while(0U) 657 658 /** @brief Macro to enable the UART's one bit sample method 659 * @param __HANDLE__ specifies the UART Handle. 660 * @retval None 661 */ 662 #define __HAL_UART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT) 663 664 /** @brief Macro to disable the UART's one bit sample method 665 * @param __HANDLE__ specifies the UART Handle. 666 * @retval None 667 */ 668 #define __HAL_UART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_ONEBIT)) 669 670 /** @brief Enable UART 671 * @param __HANDLE__ specifies the UART Handle. 672 * @retval None 673 */ 674 #define __HAL_UART_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 |= USART_CR1_UE) 675 676 /** @brief Disable UART 677 * @param __HANDLE__ specifies the UART Handle. 678 * @retval None 679 */ 680 #define __HAL_UART_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE) 681 /** 682 * @} 683 */ 684 685 /* Exported functions --------------------------------------------------------*/ 686 /** @addtogroup UART_Exported_Functions 687 * @{ 688 */ 689 690 /** @addtogroup UART_Exported_Functions_Group1 Initialization and de-initialization functions 691 * @{ 692 */ 693 694 /* Initialization/de-initialization functions **********************************/ 695 HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart); 696 HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart); 697 HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength); 698 HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod); 699 HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart); 700 void HAL_UART_MspInit(UART_HandleTypeDef *huart); 701 void HAL_UART_MspDeInit(UART_HandleTypeDef *huart); 702 703 /* Callbacks Register/UnRegister functions ***********************************/ 704 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 705 HAL_StatusTypeDef HAL_UART_RegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID, pUART_CallbackTypeDef pCallback); 706 HAL_StatusTypeDef HAL_UART_UnRegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID); 707 708 HAL_StatusTypeDef HAL_UART_RegisterRxEventCallback(UART_HandleTypeDef *huart, pUART_RxEventCallbackTypeDef pCallback); 709 HAL_StatusTypeDef HAL_UART_UnRegisterRxEventCallback(UART_HandleTypeDef *huart); 710 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 711 712 /** 713 * @} 714 */ 715 716 /** @addtogroup UART_Exported_Functions_Group2 IO operation functions 717 * @{ 718 */ 719 720 /* IO operation functions *******************************************************/ 721 HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout); 722 HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout); 723 HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 724 HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 725 HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 726 HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 727 HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart); 728 HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart); 729 HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart); 730 731 HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint16_t *RxLen, uint32_t Timeout); 732 HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 733 HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 734 735 /* Transfer Abort functions */ 736 HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart); 737 HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart); 738 HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart); 739 HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart); 740 HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart); 741 HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart); 742 743 void HAL_UART_IRQHandler(UART_HandleTypeDef *huart); 744 void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart); 745 void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart); 746 void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart); 747 void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart); 748 void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart); 749 void HAL_UART_AbortCpltCallback(UART_HandleTypeDef *huart); 750 void HAL_UART_AbortTransmitCpltCallback(UART_HandleTypeDef *huart); 751 void HAL_UART_AbortReceiveCpltCallback(UART_HandleTypeDef *huart); 752 753 void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size); 754 755 /** 756 * @} 757 */ 758 759 /** @addtogroup UART_Exported_Functions_Group3 760 * @{ 761 */ 762 /* Peripheral Control functions ************************************************/ 763 HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart); 764 HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart); 765 HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart); 766 HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart); 767 HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart); 768 /** 769 * @} 770 */ 771 772 /** @addtogroup UART_Exported_Functions_Group4 773 * @{ 774 */ 775 /* Peripheral State functions **************************************************/ 776 HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart); 777 uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart); 778 /** 779 * @} 780 */ 781 782 /** 783 * @} 784 */ 785 /* Private types -------------------------------------------------------------*/ 786 /* Private variables ---------------------------------------------------------*/ 787 /* Private constants ---------------------------------------------------------*/ 788 /** @defgroup UART_Private_Constants UART Private Constants 789 * @{ 790 */ 791 /** @brief UART interruptions flag mask 792 * 793 */ 794 #define UART_IT_MASK 0x0000FFFFU 795 796 #define UART_CR1_REG_INDEX 1U 797 #define UART_CR2_REG_INDEX 2U 798 #define UART_CR3_REG_INDEX 3U 799 /** 800 * @} 801 */ 802 803 /* Private macros ------------------------------------------------------------*/ 804 /** @defgroup UART_Private_Macros UART Private Macros 805 * @{ 806 */ 807 #define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) || \ 808 ((LENGTH) == UART_WORDLENGTH_9B)) 809 #define IS_UART_LIN_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B)) 810 #define IS_UART_STOPBITS(STOPBITS) (((STOPBITS) == UART_STOPBITS_1) || \ 811 ((STOPBITS) == UART_STOPBITS_2)) 812 #define IS_UART_PARITY(PARITY) (((PARITY) == UART_PARITY_NONE) || \ 813 ((PARITY) == UART_PARITY_EVEN) || \ 814 ((PARITY) == UART_PARITY_ODD)) 815 #define IS_UART_HARDWARE_FLOW_CONTROL(CONTROL)\ 816 (((CONTROL) == UART_HWCONTROL_NONE) || \ 817 ((CONTROL) == UART_HWCONTROL_RTS) || \ 818 ((CONTROL) == UART_HWCONTROL_CTS) || \ 819 ((CONTROL) == UART_HWCONTROL_RTS_CTS)) 820 #define IS_UART_MODE(MODE) ((((MODE) & 0x0000FFF3U) == 0x00U) && ((MODE) != 0x00U)) 821 #define IS_UART_STATE(STATE) (((STATE) == UART_STATE_DISABLE) || \ 822 ((STATE) == UART_STATE_ENABLE)) 823 #define IS_UART_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16) || \ 824 ((SAMPLING) == UART_OVERSAMPLING_8)) 825 #define IS_UART_LIN_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16)) 826 #define IS_UART_LIN_BREAK_DETECT_LENGTH(LENGTH) (((LENGTH) == UART_LINBREAKDETECTLENGTH_10B) || \ 827 ((LENGTH) == UART_LINBREAKDETECTLENGTH_11B)) 828 #define IS_UART_WAKEUPMETHOD(WAKEUP) (((WAKEUP) == UART_WAKEUPMETHOD_IDLELINE) || \ 829 ((WAKEUP) == UART_WAKEUPMETHOD_ADDRESSMARK)) 830 #define IS_UART_BAUDRATE(BAUDRATE) ((BAUDRATE) <= 4000000U) 831 #define IS_UART_ADDRESS(ADDRESS) ((ADDRESS) <= 0x0FU) 832 833 #define UART_DIV_SAMPLING16(_PCLK_, _BAUD_) (((_PCLK_)*25U)/(4U*(_BAUD_))) 834 #define UART_DIVMANT_SAMPLING16(_PCLK_, _BAUD_) (UART_DIV_SAMPLING16((_PCLK_), (_BAUD_))/100U) 835 #define UART_DIVFRAQ_SAMPLING16(_PCLK_, _BAUD_) ((((UART_DIV_SAMPLING16((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) * 100U)) * 16U) + 50U) / 100U) 836 /* UART BRR = mantissa + overflow + fraction 837 = (UART DIVMANT << 4) + (UART DIVFRAQ & 0xF0) + (UART DIVFRAQ & 0x0FU) */ 838 #define UART_BRR_SAMPLING16(_PCLK_, _BAUD_) (((UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) << 4U) + \ 839 (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0xF0U)) + \ 840 (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0x0FU)) 841 842 #define UART_DIV_SAMPLING8(_PCLK_, _BAUD_) (((_PCLK_)*25U)/(2U*(_BAUD_))) 843 #define UART_DIVMANT_SAMPLING8(_PCLK_, _BAUD_) (UART_DIV_SAMPLING8((_PCLK_), (_BAUD_))/100U) 844 #define UART_DIVFRAQ_SAMPLING8(_PCLK_, _BAUD_) ((((UART_DIV_SAMPLING8((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) * 100U)) * 8U) + 50U) / 100U) 845 /* UART BRR = mantissa + overflow + fraction 846 = (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07U) */ 847 #define UART_BRR_SAMPLING8(_PCLK_, _BAUD_) (((UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) << 4U) + \ 848 ((UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0xF8U) << 1U)) + \ 849 (UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0x07U)) 850 851 /** 852 * @} 853 */ 854 855 /* Private functions ---------------------------------------------------------*/ 856 /** @defgroup UART_Private_Functions UART Private Functions 857 * @{ 858 */ 859 860 HAL_StatusTypeDef UART_Start_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 861 HAL_StatusTypeDef UART_Start_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 862 863 /** 864 * @} 865 */ 866 867 /** 868 * @} 869 */ 870 871 /** 872 * @} 873 */ 874 875 #ifdef __cplusplus 876 } 877 #endif 878 879 #endif /* __STM32L1xx_HAL_UART_H */ 880 881 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 882