1 /** 2 ****************************************************************************** 3 * @file stm32f4xx_hal_uart.h 4 * @author MCD Application Team 5 * @brief Header file of UART HAL module. 6 ****************************************************************************** 7 * @attention 8 * 9 * Copyright (c) 2016 STMicroelectronics. 10 * All rights reserved. 11 * 12 * This software is licensed under terms that can be found in the LICENSE file 13 * in the root directory of this software component. 14 * If no LICENSE file comes with this software, it is provided AS-IS. 15 * 16 ****************************************************************************** 17 */ 18 19 /* Define to prevent recursive inclusion -------------------------------------*/ 20 #ifndef __STM32F4xx_HAL_UART_H 21 #define __STM32F4xx_HAL_UART_H 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 /* Includes ------------------------------------------------------------------*/ 28 #include "stm32f4xx_hal_def.h" 29 30 /** @addtogroup STM32F4xx_HAL_Driver 31 * @{ 32 */ 33 34 /** @addtogroup UART 35 * @{ 36 */ 37 38 /* Exported types ------------------------------------------------------------*/ 39 /** @defgroup UART_Exported_Types UART Exported Types 40 * @{ 41 */ 42 43 /** 44 * @brief UART Init Structure definition 45 */ 46 typedef struct 47 { 48 uint32_t BaudRate; /*!< This member configures the UART communication baud rate. 49 The baud rate is computed using the following formula: 50 - IntegerDivider = ((PCLKx) / (8 * (OVR8+1) * (huart->Init.BaudRate))) 51 - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8 * (OVR8+1)) + 0.5 52 Where OVR8 is the "oversampling by 8 mode" configuration bit in the CR1 register. */ 53 54 uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received in a frame. 55 This parameter can be a value of @ref UART_Word_Length */ 56 57 uint32_t StopBits; /*!< Specifies the number of stop bits transmitted. 58 This parameter can be a value of @ref UART_Stop_Bits */ 59 60 uint32_t Parity; /*!< Specifies the parity mode. 61 This parameter can be a value of @ref UART_Parity 62 @note When parity is enabled, the computed parity is inserted 63 at the MSB position of the transmitted data (9th bit when 64 the word length is set to 9 data bits; 8th bit when the 65 word length is set to 8 data bits). */ 66 67 uint32_t Mode; /*!< Specifies whether the Receive or Transmit mode is enabled or disabled. 68 This parameter can be a value of @ref UART_Mode */ 69 70 uint32_t HwFlowCtl; /*!< Specifies whether the hardware flow control mode is enabled or disabled. 71 This parameter can be a value of @ref UART_Hardware_Flow_Control */ 72 73 uint32_t OverSampling; /*!< Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher speed (up to fPCLK/8). 74 This parameter can be a value of @ref UART_Over_Sampling */ 75 } UART_InitTypeDef; 76 77 /** 78 * @brief HAL UART State structures definition 79 * @note HAL UART State value is a combination of 2 different substates: gState and RxState. 80 * - gState contains UART state information related to global Handle management 81 * and also information related to Tx operations. 82 * gState value coding follow below described bitmap : 83 * b7-b6 Error information 84 * 00 : No Error 85 * 01 : (Not Used) 86 * 10 : Timeout 87 * 11 : Error 88 * b5 Peripheral initialization status 89 * 0 : Reset (Peripheral not initialized) 90 * 1 : Init done (Peripheral initialized. HAL UART Init function already called) 91 * b4-b3 (not used) 92 * xx : Should be set to 00 93 * b2 Intrinsic process state 94 * 0 : Ready 95 * 1 : Busy (Peripheral busy with some configuration or internal operations) 96 * b1 (not used) 97 * x : Should be set to 0 98 * b0 Tx state 99 * 0 : Ready (no Tx operation ongoing) 100 * 1 : Busy (Tx operation ongoing) 101 * - RxState contains information related to Rx operations. 102 * RxState value coding follow below described bitmap : 103 * b7-b6 (not used) 104 * xx : Should be set to 00 105 * b5 Peripheral initialization status 106 * 0 : Reset (Peripheral not initialized) 107 * 1 : Init done (Peripheral initialized) 108 * b4-b2 (not used) 109 * xxx : Should be set to 000 110 * b1 Rx state 111 * 0 : Ready (no Rx operation ongoing) 112 * 1 : Busy (Rx operation ongoing) 113 * b0 (not used) 114 * x : Should be set to 0. 115 */ 116 typedef enum 117 { 118 HAL_UART_STATE_RESET = 0x00U, /*!< Peripheral is not yet Initialized 119 Value is allowed for gState and RxState */ 120 HAL_UART_STATE_READY = 0x20U, /*!< Peripheral Initialized and ready for use 121 Value is allowed for gState and RxState */ 122 HAL_UART_STATE_BUSY = 0x24U, /*!< an internal process is ongoing 123 Value is allowed for gState only */ 124 HAL_UART_STATE_BUSY_TX = 0x21U, /*!< Data Transmission process is ongoing 125 Value is allowed for gState only */ 126 HAL_UART_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing 127 Value is allowed for RxState only */ 128 HAL_UART_STATE_BUSY_TX_RX = 0x23U, /*!< Data Transmission and Reception process is ongoing 129 Not to be used for neither gState nor RxState. 130 Value is result of combination (Or) between gState and RxState values */ 131 HAL_UART_STATE_TIMEOUT = 0xA0U, /*!< Timeout state 132 Value is allowed for gState only */ 133 HAL_UART_STATE_ERROR = 0xE0U /*!< Error 134 Value is allowed for gState only */ 135 } HAL_UART_StateTypeDef; 136 137 /** 138 * @brief HAL UART Reception type definition 139 * @note HAL UART Reception type value aims to identify which type of Reception is ongoing. 140 * It is expected to admit following values : 141 * HAL_UART_RECEPTION_STANDARD = 0x00U, 142 * HAL_UART_RECEPTION_TOIDLE = 0x01U, 143 */ 144 typedef uint32_t HAL_UART_RxTypeTypeDef; 145 146 /** 147 * @brief UART handle Structure definition 148 */ 149 typedef struct __UART_HandleTypeDef 150 { 151 USART_TypeDef *Instance; /*!< UART registers base address */ 152 153 UART_InitTypeDef Init; /*!< UART communication parameters */ 154 155 const uint8_t *pTxBuffPtr; /*!< Pointer to UART Tx transfer Buffer */ 156 157 uint16_t TxXferSize; /*!< UART Tx Transfer size */ 158 159 __IO uint16_t TxXferCount; /*!< UART Tx Transfer Counter */ 160 161 uint8_t *pRxBuffPtr; /*!< Pointer to UART Rx transfer Buffer */ 162 163 uint16_t RxXferSize; /*!< UART Rx Transfer size */ 164 165 __IO uint16_t RxXferCount; /*!< UART Rx Transfer Counter */ 166 167 __IO HAL_UART_RxTypeTypeDef ReceptionType; /*!< Type of ongoing reception */ 168 169 DMA_HandleTypeDef *hdmatx; /*!< UART Tx DMA Handle parameters */ 170 171 DMA_HandleTypeDef *hdmarx; /*!< UART Rx DMA Handle parameters */ 172 173 HAL_LockTypeDef Lock; /*!< Locking object */ 174 175 __IO HAL_UART_StateTypeDef gState; /*!< UART state information related to global Handle management 176 and also related to Tx operations. 177 This parameter can be a value of @ref HAL_UART_StateTypeDef */ 178 179 __IO HAL_UART_StateTypeDef RxState; /*!< UART state information related to Rx operations. 180 This parameter can be a value of @ref HAL_UART_StateTypeDef */ 181 182 __IO uint32_t ErrorCode; /*!< UART Error code */ 183 184 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 185 void (* TxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Half Complete Callback */ 186 void (* TxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Complete Callback */ 187 void (* RxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Half Complete Callback */ 188 void (* RxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Complete Callback */ 189 void (* ErrorCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Error Callback */ 190 void (* AbortCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Complete Callback */ 191 void (* AbortTransmitCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Transmit Complete Callback */ 192 void (* AbortReceiveCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Receive Complete Callback */ 193 void (* WakeupCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Wakeup Callback */ 194 void (* RxEventCallback)(struct __UART_HandleTypeDef *huart, uint16_t Pos); /*!< UART Reception Event Callback */ 195 196 void (* MspInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp Init callback */ 197 void (* MspDeInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp DeInit callback */ 198 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 199 200 } UART_HandleTypeDef; 201 202 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 203 /** 204 * @brief HAL UART Callback ID enumeration definition 205 */ 206 typedef enum 207 { 208 HAL_UART_TX_HALFCOMPLETE_CB_ID = 0x00U, /*!< UART Tx Half Complete Callback ID */ 209 HAL_UART_TX_COMPLETE_CB_ID = 0x01U, /*!< UART Tx Complete Callback ID */ 210 HAL_UART_RX_HALFCOMPLETE_CB_ID = 0x02U, /*!< UART Rx Half Complete Callback ID */ 211 HAL_UART_RX_COMPLETE_CB_ID = 0x03U, /*!< UART Rx Complete Callback ID */ 212 HAL_UART_ERROR_CB_ID = 0x04U, /*!< UART Error Callback ID */ 213 HAL_UART_ABORT_COMPLETE_CB_ID = 0x05U, /*!< UART Abort Complete Callback ID */ 214 HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID = 0x06U, /*!< UART Abort Transmit Complete Callback ID */ 215 HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID = 0x07U, /*!< UART Abort Receive Complete Callback ID */ 216 HAL_UART_WAKEUP_CB_ID = 0x08U, /*!< UART Wakeup Callback ID */ 217 218 HAL_UART_MSPINIT_CB_ID = 0x0BU, /*!< UART MspInit callback ID */ 219 HAL_UART_MSPDEINIT_CB_ID = 0x0CU /*!< UART MspDeInit callback ID */ 220 221 } HAL_UART_CallbackIDTypeDef; 222 223 /** 224 * @brief HAL UART Callback pointer definition 225 */ 226 typedef void (*pUART_CallbackTypeDef)(UART_HandleTypeDef *huart); /*!< pointer to an UART callback function */ 227 typedef void (*pUART_RxEventCallbackTypeDef)(struct __UART_HandleTypeDef *huart, uint16_t Pos); /*!< pointer to a UART Rx Event specific callback function */ 228 229 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 230 231 /** 232 * @} 233 */ 234 235 /* Exported constants --------------------------------------------------------*/ 236 /** @defgroup UART_Exported_Constants UART Exported Constants 237 * @{ 238 */ 239 240 /** @defgroup UART_Error_Code UART Error Code 241 * @{ 242 */ 243 #define HAL_UART_ERROR_NONE 0x00000000U /*!< No error */ 244 #define HAL_UART_ERROR_PE 0x00000001U /*!< Parity error */ 245 #define HAL_UART_ERROR_NE 0x00000002U /*!< Noise error */ 246 #define HAL_UART_ERROR_FE 0x00000004U /*!< Frame error */ 247 #define HAL_UART_ERROR_ORE 0x00000008U /*!< Overrun error */ 248 #define HAL_UART_ERROR_DMA 0x00000010U /*!< DMA transfer error */ 249 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 250 #define HAL_UART_ERROR_INVALID_CALLBACK 0x00000020U /*!< Invalid Callback error */ 251 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 252 /** 253 * @} 254 */ 255 256 /** @defgroup UART_Word_Length UART Word Length 257 * @{ 258 */ 259 #define UART_WORDLENGTH_8B 0x00000000U 260 #define UART_WORDLENGTH_9B ((uint32_t)USART_CR1_M) 261 /** 262 * @} 263 */ 264 265 /** @defgroup UART_Stop_Bits UART Number of Stop Bits 266 * @{ 267 */ 268 #define UART_STOPBITS_1 0x00000000U 269 #define UART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1) 270 /** 271 * @} 272 */ 273 274 /** @defgroup UART_Parity UART Parity 275 * @{ 276 */ 277 #define UART_PARITY_NONE 0x00000000U 278 #define UART_PARITY_EVEN ((uint32_t)USART_CR1_PCE) 279 #define UART_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS)) 280 /** 281 * @} 282 */ 283 284 /** @defgroup UART_Hardware_Flow_Control UART Hardware Flow Control 285 * @{ 286 */ 287 #define UART_HWCONTROL_NONE 0x00000000U 288 #define UART_HWCONTROL_RTS ((uint32_t)USART_CR3_RTSE) 289 #define UART_HWCONTROL_CTS ((uint32_t)USART_CR3_CTSE) 290 #define UART_HWCONTROL_RTS_CTS ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE)) 291 /** 292 * @} 293 */ 294 295 /** @defgroup UART_Mode UART Transfer Mode 296 * @{ 297 */ 298 #define UART_MODE_RX ((uint32_t)USART_CR1_RE) 299 #define UART_MODE_TX ((uint32_t)USART_CR1_TE) 300 #define UART_MODE_TX_RX ((uint32_t)(USART_CR1_TE | USART_CR1_RE)) 301 /** 302 * @} 303 */ 304 305 /** @defgroup UART_State UART State 306 * @{ 307 */ 308 #define UART_STATE_DISABLE 0x00000000U 309 #define UART_STATE_ENABLE ((uint32_t)USART_CR1_UE) 310 /** 311 * @} 312 */ 313 314 /** @defgroup UART_Over_Sampling UART Over Sampling 315 * @{ 316 */ 317 #define UART_OVERSAMPLING_16 0x00000000U 318 #define UART_OVERSAMPLING_8 ((uint32_t)USART_CR1_OVER8) 319 /** 320 * @} 321 */ 322 323 /** @defgroup UART_LIN_Break_Detection_Length UART LIN Break Detection Length 324 * @{ 325 */ 326 #define UART_LINBREAKDETECTLENGTH_10B 0x00000000U 327 #define UART_LINBREAKDETECTLENGTH_11B ((uint32_t)USART_CR2_LBDL) 328 /** 329 * @} 330 */ 331 332 /** @defgroup UART_WakeUp_functions UART Wakeup Functions 333 * @{ 334 */ 335 #define UART_WAKEUPMETHOD_IDLELINE 0x00000000U 336 #define UART_WAKEUPMETHOD_ADDRESSMARK ((uint32_t)USART_CR1_WAKE) 337 /** 338 * @} 339 */ 340 341 /** @defgroup UART_Flags UART FLags 342 * Elements values convention: 0xXXXX 343 * - 0xXXXX : Flag mask in the SR register 344 * @{ 345 */ 346 #define UART_FLAG_CTS ((uint32_t)USART_SR_CTS) 347 #define UART_FLAG_LBD ((uint32_t)USART_SR_LBD) 348 #define UART_FLAG_TXE ((uint32_t)USART_SR_TXE) 349 #define UART_FLAG_TC ((uint32_t)USART_SR_TC) 350 #define UART_FLAG_RXNE ((uint32_t)USART_SR_RXNE) 351 #define UART_FLAG_IDLE ((uint32_t)USART_SR_IDLE) 352 #define UART_FLAG_ORE ((uint32_t)USART_SR_ORE) 353 #define UART_FLAG_NE ((uint32_t)USART_SR_NE) 354 #define UART_FLAG_FE ((uint32_t)USART_SR_FE) 355 #define UART_FLAG_PE ((uint32_t)USART_SR_PE) 356 /** 357 * @} 358 */ 359 360 /** @defgroup UART_Interrupt_definition UART Interrupt Definitions 361 * Elements values convention: 0xY000XXXX 362 * - XXXX : Interrupt mask (16 bits) in the Y register 363 * - Y : Interrupt source register (2bits) 364 * - 0001: CR1 register 365 * - 0010: CR2 register 366 * - 0011: CR3 register 367 * @{ 368 */ 369 370 #define UART_IT_PE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_PEIE)) 371 #define UART_IT_TXE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TXEIE)) 372 #define UART_IT_TC ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TCIE)) 373 #define UART_IT_RXNE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_RXNEIE)) 374 #define UART_IT_IDLE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_IDLEIE)) 375 376 #define UART_IT_LBD ((uint32_t)(UART_CR2_REG_INDEX << 28U | USART_CR2_LBDIE)) 377 378 #define UART_IT_CTS ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_CTSIE)) 379 #define UART_IT_ERR ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_EIE)) 380 /** 381 * @} 382 */ 383 384 /** @defgroup UART_RECEPTION_TYPE_Values UART Reception type values 385 * @{ 386 */ 387 #define HAL_UART_RECEPTION_STANDARD (0x00000000U) /*!< Standard reception */ 388 #define HAL_UART_RECEPTION_TOIDLE (0x00000001U) /*!< Reception till completion or IDLE event */ 389 /** 390 * @} 391 */ 392 393 /** 394 * @} 395 */ 396 397 /* Exported macro ------------------------------------------------------------*/ 398 /** @defgroup UART_Exported_Macros UART Exported Macros 399 * @{ 400 */ 401 402 /** @brief Reset UART handle gstate & RxState 403 * @param __HANDLE__ specifies the UART Handle. 404 * UART Handle selects the USARTx or UARTy peripheral 405 * (USART,UART availability and x,y values depending on device). 406 * @retval None 407 */ 408 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 409 #define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \ 410 (__HANDLE__)->gState = HAL_UART_STATE_RESET; \ 411 (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \ 412 (__HANDLE__)->MspInitCallback = NULL; \ 413 (__HANDLE__)->MspDeInitCallback = NULL; \ 414 } while(0U) 415 #else 416 #define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \ 417 (__HANDLE__)->gState = HAL_UART_STATE_RESET; \ 418 (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \ 419 } while(0U) 420 #endif /*USE_HAL_UART_REGISTER_CALLBACKS */ 421 422 /** @brief Flushes the UART DR register 423 * @param __HANDLE__ specifies the UART Handle. 424 * UART Handle selects the USARTx or UARTy peripheral 425 * (USART,UART availability and x,y values depending on device). 426 */ 427 #define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR) 428 429 /** @brief Checks whether the specified UART flag is set or not. 430 * @param __HANDLE__ specifies the UART Handle. 431 * UART Handle selects the USARTx or UARTy peripheral 432 * (USART,UART availability and x,y values depending on device). 433 * @param __FLAG__ specifies the flag to check. 434 * This parameter can be one of the following values: 435 * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5) 436 * @arg UART_FLAG_LBD: LIN Break detection flag 437 * @arg UART_FLAG_TXE: Transmit data register empty flag 438 * @arg UART_FLAG_TC: Transmission Complete flag 439 * @arg UART_FLAG_RXNE: Receive data register not empty flag 440 * @arg UART_FLAG_IDLE: Idle Line detection flag 441 * @arg UART_FLAG_ORE: Overrun Error flag 442 * @arg UART_FLAG_NE: Noise Error flag 443 * @arg UART_FLAG_FE: Framing Error flag 444 * @arg UART_FLAG_PE: Parity Error flag 445 * @retval The new state of __FLAG__ (TRUE or FALSE). 446 */ 447 #define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__)) 448 449 /** @brief Clears the specified UART pending flag. 450 * @param __HANDLE__ specifies the UART Handle. 451 * UART Handle selects the USARTx or UARTy peripheral 452 * (USART,UART availability and x,y values depending on device). 453 * @param __FLAG__ specifies the flag to check. 454 * This parameter can be any combination of the following values: 455 * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5). 456 * @arg UART_FLAG_LBD: LIN Break detection flag. 457 * @arg UART_FLAG_TC: Transmission Complete flag. 458 * @arg UART_FLAG_RXNE: Receive data register not empty flag. 459 * 460 * @note PE (Parity error), FE (Framing error), NE (Noise error), ORE (Overrun 461 * error) and IDLE (Idle line detected) flags are cleared by software 462 * sequence: a read operation to USART_SR register followed by a read 463 * operation to USART_DR register. 464 * @note RXNE flag can be also cleared by a read to the USART_DR register. 465 * @note TC flag can be also cleared by software sequence: a read operation to 466 * USART_SR register followed by a write operation to USART_DR register. 467 * @note TXE flag is cleared only by a write to the USART_DR register. 468 * 469 * @retval None 470 */ 471 #define __HAL_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__)) 472 473 /** @brief Clears the UART PE pending flag. 474 * @param __HANDLE__ specifies the UART Handle. 475 * UART Handle selects the USARTx or UARTy peripheral 476 * (USART,UART availability and x,y values depending on device). 477 * @retval None 478 */ 479 #define __HAL_UART_CLEAR_PEFLAG(__HANDLE__) \ 480 do{ \ 481 __IO uint32_t tmpreg = 0x00U; \ 482 tmpreg = (__HANDLE__)->Instance->SR; \ 483 tmpreg = (__HANDLE__)->Instance->DR; \ 484 UNUSED(tmpreg); \ 485 } while(0U) 486 487 /** @brief Clears the UART FE pending flag. 488 * @param __HANDLE__ specifies the UART Handle. 489 * UART Handle selects the USARTx or UARTy peripheral 490 * (USART,UART availability and x,y values depending on device). 491 * @retval None 492 */ 493 #define __HAL_UART_CLEAR_FEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 494 495 /** @brief Clears the UART NE pending flag. 496 * @param __HANDLE__ specifies the UART Handle. 497 * UART Handle selects the USARTx or UARTy peripheral 498 * (USART,UART availability and x,y values depending on device). 499 * @retval None 500 */ 501 #define __HAL_UART_CLEAR_NEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 502 503 /** @brief Clears the UART ORE pending flag. 504 * @param __HANDLE__ specifies the UART Handle. 505 * UART Handle selects the USARTx or UARTy peripheral 506 * (USART,UART availability and x,y values depending on device). 507 * @retval None 508 */ 509 #define __HAL_UART_CLEAR_OREFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 510 511 /** @brief Clears the UART IDLE pending flag. 512 * @param __HANDLE__ specifies the UART Handle. 513 * UART Handle selects the USARTx or UARTy peripheral 514 * (USART,UART availability and x,y values depending on device). 515 * @retval None 516 */ 517 #define __HAL_UART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 518 519 /** @brief Enable the specified UART interrupt. 520 * @param __HANDLE__ specifies the UART Handle. 521 * UART Handle selects the USARTx or UARTy peripheral 522 * (USART,UART availability and x,y values depending on device). 523 * @param __INTERRUPT__ specifies the UART interrupt source to enable. 524 * This parameter can be one of the following values: 525 * @arg UART_IT_CTS: CTS change interrupt 526 * @arg UART_IT_LBD: LIN Break detection interrupt 527 * @arg UART_IT_TXE: Transmit Data Register empty interrupt 528 * @arg UART_IT_TC: Transmission complete interrupt 529 * @arg UART_IT_RXNE: Receive Data register not empty interrupt 530 * @arg UART_IT_IDLE: Idle line detection interrupt 531 * @arg UART_IT_PE: Parity Error interrupt 532 * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) 533 * @retval None 534 */ 535 #define __HAL_UART_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & UART_IT_MASK)): \ 536 (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & UART_IT_MASK)): \ 537 ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & UART_IT_MASK))) 538 539 /** @brief Disable the specified UART interrupt. 540 * @param __HANDLE__ specifies the UART Handle. 541 * UART Handle selects the USARTx or UARTy peripheral 542 * (USART,UART availability and x,y values depending on device). 543 * @param __INTERRUPT__ specifies the UART interrupt source to disable. 544 * This parameter can be one of the following values: 545 * @arg UART_IT_CTS: CTS change interrupt 546 * @arg UART_IT_LBD: LIN Break detection interrupt 547 * @arg UART_IT_TXE: Transmit Data Register empty interrupt 548 * @arg UART_IT_TC: Transmission complete interrupt 549 * @arg UART_IT_RXNE: Receive Data register not empty interrupt 550 * @arg UART_IT_IDLE: Idle line detection interrupt 551 * @arg UART_IT_PE: Parity Error interrupt 552 * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) 553 * @retval None 554 */ 555 #define __HAL_UART_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & UART_IT_MASK)): \ 556 (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & UART_IT_MASK)): \ 557 ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK))) 558 559 /** @brief Checks whether the specified UART interrupt source is enabled or not. 560 * @param __HANDLE__ specifies the UART Handle. 561 * UART Handle selects the USARTx or UARTy peripheral 562 * (USART,UART availability and x,y values depending on device). 563 * @param __IT__ specifies the UART interrupt source to check. 564 * This parameter can be one of the following values: 565 * @arg UART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) 566 * @arg UART_IT_LBD: LIN Break detection interrupt 567 * @arg UART_IT_TXE: Transmit Data Register empty interrupt 568 * @arg UART_IT_TC: Transmission complete interrupt 569 * @arg UART_IT_RXNE: Receive Data register not empty interrupt 570 * @arg UART_IT_IDLE: Idle line detection interrupt 571 * @arg UART_IT_ERR: Error interrupt 572 * @retval The new state of __IT__ (TRUE or FALSE). 573 */ 574 #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)? \ 575 (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & UART_IT_MASK)) 576 577 /** @brief Enable CTS flow control 578 * @note This macro allows to enable CTS hardware flow control for a given UART instance, 579 * without need to call HAL_UART_Init() function. 580 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 581 * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need 582 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 583 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 584 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 585 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 586 * @param __HANDLE__ specifies the UART Handle. 587 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 588 * It is used to select the USART peripheral (USART availability and x value depending on device). 589 * @retval None 590 */ 591 #define __HAL_UART_HWCONTROL_CTS_ENABLE(__HANDLE__) \ 592 do{ \ 593 ATOMIC_SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ 594 (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_CTSE; \ 595 } while(0U) 596 597 /** @brief Disable CTS flow control 598 * @note This macro allows to disable CTS hardware flow control for a given UART instance, 599 * without need to call HAL_UART_Init() function. 600 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 601 * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need 602 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 603 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 604 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 605 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 606 * @param __HANDLE__ specifies the UART Handle. 607 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 608 * It is used to select the USART peripheral (USART availability and x value depending on device). 609 * @retval None 610 */ 611 #define __HAL_UART_HWCONTROL_CTS_DISABLE(__HANDLE__) \ 612 do{ \ 613 ATOMIC_CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ 614 (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_CTSE); \ 615 } while(0U) 616 617 /** @brief Enable RTS flow control 618 * This macro allows to enable RTS hardware flow control for a given UART instance, 619 * without need to call HAL_UART_Init() function. 620 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 621 * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need 622 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 623 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 624 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 625 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 626 * @param __HANDLE__ specifies the UART Handle. 627 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 628 * It is used to select the USART peripheral (USART availability and x value depending on device). 629 * @retval None 630 */ 631 #define __HAL_UART_HWCONTROL_RTS_ENABLE(__HANDLE__) \ 632 do{ \ 633 ATOMIC_SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE); \ 634 (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_RTSE; \ 635 } while(0U) 636 637 /** @brief Disable RTS flow control 638 * This macro allows to disable RTS hardware flow control for a given UART instance, 639 * without need to call HAL_UART_Init() function. 640 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 641 * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need 642 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 643 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 644 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 645 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 646 * @param __HANDLE__ specifies the UART Handle. 647 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 648 * It is used to select the USART peripheral (USART availability and x value depending on device). 649 * @retval None 650 */ 651 #define __HAL_UART_HWCONTROL_RTS_DISABLE(__HANDLE__) \ 652 do{ \ 653 ATOMIC_CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE);\ 654 (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_RTSE); \ 655 } while(0U) 656 657 /** @brief Macro to enable the UART's one bit sample method 658 * @param __HANDLE__ specifies the UART Handle. 659 * @retval None 660 */ 661 #define __HAL_UART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT) 662 663 /** @brief Macro to disable the UART's one bit sample method 664 * @param __HANDLE__ specifies the UART Handle. 665 * @retval None 666 */ 667 #define __HAL_UART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3\ 668 &= (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, 706 pUART_CallbackTypeDef pCallback); 707 HAL_StatusTypeDef HAL_UART_UnRegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID); 708 709 HAL_StatusTypeDef HAL_UART_RegisterRxEventCallback(UART_HandleTypeDef *huart, pUART_RxEventCallbackTypeDef pCallback); 710 HAL_StatusTypeDef HAL_UART_UnRegisterRxEventCallback(UART_HandleTypeDef *huart); 711 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 712 713 /** 714 * @} 715 */ 716 717 /** @addtogroup UART_Exported_Functions_Group2 IO operation functions 718 * @{ 719 */ 720 721 /* IO operation functions *******************************************************/ 722 HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size, uint32_t Timeout); 723 HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout); 724 HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size); 725 HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 726 HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size); 727 HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 728 HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart); 729 HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart); 730 HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart); 731 732 HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint16_t *RxLen, 733 uint32_t Timeout); 734 HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 735 HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 736 737 /* Transfer Abort functions */ 738 HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart); 739 HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart); 740 HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart); 741 HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart); 742 HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart); 743 HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart); 744 745 void HAL_UART_IRQHandler(UART_HandleTypeDef *huart); 746 void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart); 747 void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart); 748 void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart); 749 void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart); 750 void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart); 751 void HAL_UART_AbortCpltCallback(UART_HandleTypeDef *huart); 752 void HAL_UART_AbortTransmitCpltCallback(UART_HandleTypeDef *huart); 753 void HAL_UART_AbortReceiveCpltCallback(UART_HandleTypeDef *huart); 754 755 void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size); 756 757 /** 758 * @} 759 */ 760 761 /** @addtogroup UART_Exported_Functions_Group3 762 * @{ 763 */ 764 /* Peripheral Control functions ************************************************/ 765 HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart); 766 HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart); 767 HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart); 768 HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart); 769 HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart); 770 /** 771 * @} 772 */ 773 774 /** @addtogroup UART_Exported_Functions_Group4 775 * @{ 776 */ 777 /* Peripheral State functions **************************************************/ 778 HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart); 779 uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart); 780 /** 781 * @} 782 */ 783 784 /** 785 * @} 786 */ 787 /* Private types -------------------------------------------------------------*/ 788 /* Private variables ---------------------------------------------------------*/ 789 /* Private constants ---------------------------------------------------------*/ 790 /** @defgroup UART_Private_Constants UART Private Constants 791 * @{ 792 */ 793 /** @brief UART interruptions flag mask 794 * 795 */ 796 #define UART_IT_MASK 0x0000FFFFU 797 798 #define UART_CR1_REG_INDEX 1U 799 #define UART_CR2_REG_INDEX 2U 800 #define UART_CR3_REG_INDEX 3U 801 /** 802 * @} 803 */ 804 805 /* Private macros ------------------------------------------------------------*/ 806 /** @defgroup UART_Private_Macros UART Private Macros 807 * @{ 808 */ 809 #define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) || \ 810 ((LENGTH) == UART_WORDLENGTH_9B)) 811 #define IS_UART_LIN_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B)) 812 #define IS_UART_STOPBITS(STOPBITS) (((STOPBITS) == UART_STOPBITS_1) || \ 813 ((STOPBITS) == UART_STOPBITS_2)) 814 #define IS_UART_PARITY(PARITY) (((PARITY) == UART_PARITY_NONE) || \ 815 ((PARITY) == UART_PARITY_EVEN) || \ 816 ((PARITY) == UART_PARITY_ODD)) 817 #define IS_UART_HARDWARE_FLOW_CONTROL(CONTROL)\ 818 (((CONTROL) == UART_HWCONTROL_NONE) || \ 819 ((CONTROL) == UART_HWCONTROL_RTS) || \ 820 ((CONTROL) == UART_HWCONTROL_CTS) || \ 821 ((CONTROL) == UART_HWCONTROL_RTS_CTS)) 822 #define IS_UART_MODE(MODE) ((((MODE) & 0x0000FFF3U) == 0x00U) && ((MODE) != 0x00U)) 823 #define IS_UART_STATE(STATE) (((STATE) == UART_STATE_DISABLE) || \ 824 ((STATE) == UART_STATE_ENABLE)) 825 #define IS_UART_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16) || \ 826 ((SAMPLING) == UART_OVERSAMPLING_8)) 827 #define IS_UART_LIN_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16)) 828 #define IS_UART_LIN_BREAK_DETECT_LENGTH(LENGTH) (((LENGTH) == UART_LINBREAKDETECTLENGTH_10B) || \ 829 ((LENGTH) == UART_LINBREAKDETECTLENGTH_11B)) 830 #define IS_UART_WAKEUPMETHOD(WAKEUP) (((WAKEUP) == UART_WAKEUPMETHOD_IDLELINE) || \ 831 ((WAKEUP) == UART_WAKEUPMETHOD_ADDRESSMARK)) 832 #define IS_UART_BAUDRATE(BAUDRATE) ((BAUDRATE) <= 10500000U) 833 #define IS_UART_ADDRESS(ADDRESS) ((ADDRESS) <= 0x0FU) 834 835 #define UART_DIV_SAMPLING16(_PCLK_, _BAUD_) ((uint32_t)((((uint64_t)(_PCLK_))*25U)/(4U*((uint64_t)(_BAUD_))))) 836 #define UART_DIVMANT_SAMPLING16(_PCLK_, _BAUD_) (UART_DIV_SAMPLING16((_PCLK_), (_BAUD_))/100U) 837 #define UART_DIVFRAQ_SAMPLING16(_PCLK_, _BAUD_) ((((UART_DIV_SAMPLING16((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) * 100U)) * 16U)\ 838 + 50U) / 100U) 839 /* UART BRR = mantissa + overflow + fraction 840 = (UART DIVMANT << 4) + (UART DIVFRAQ & 0xF0) + (UART DIVFRAQ & 0x0FU) */ 841 #define UART_BRR_SAMPLING16(_PCLK_, _BAUD_) ((UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) << 4U) + \ 842 (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0xF0U) + \ 843 (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0x0FU)) 844 845 #define UART_DIV_SAMPLING8(_PCLK_, _BAUD_) ((uint32_t)((((uint64_t)(_PCLK_))*25U)/(2U*((uint64_t)(_BAUD_))))) 846 #define UART_DIVMANT_SAMPLING8(_PCLK_, _BAUD_) (UART_DIV_SAMPLING8((_PCLK_), (_BAUD_))/100U) 847 #define UART_DIVFRAQ_SAMPLING8(_PCLK_, _BAUD_) ((((UART_DIV_SAMPLING8((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) * 100U)) * 8U)\ 848 + 50U) / 100U) 849 /* UART BRR = mantissa + overflow + fraction 850 = (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07U) */ 851 #define UART_BRR_SAMPLING8(_PCLK_, _BAUD_) ((UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) << 4U) + \ 852 ((UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0xF8U) << 1U) + \ 853 (UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0x07U)) 854 855 /** 856 * @} 857 */ 858 859 /* Private functions ---------------------------------------------------------*/ 860 /** @defgroup UART_Private_Functions UART Private Functions 861 * @{ 862 */ 863 864 HAL_StatusTypeDef UART_Start_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 865 HAL_StatusTypeDef UART_Start_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 866 867 /** 868 * @} 869 */ 870 871 /** 872 * @} 873 */ 874 875 /** 876 * @} 877 */ 878 879 #ifdef __cplusplus 880 } 881 #endif 882 883 #endif /* __STM32F4xx_HAL_UART_H */ 884 885
