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STM32F479xx HAL User Manual
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00001 /** 00002 ****************************************************************************** 00003 * @file stm32f4xx_hal_uart.h 00004 * @author MCD Application Team 00005 * @brief Header file of UART HAL module. 00006 ****************************************************************************** 00007 * @attention 00008 * 00009 * <h2><center>© Copyright (c) 2016 STMicroelectronics. 00010 * All rights reserved.</center></h2> 00011 * 00012 * This software component is licensed by ST under BSD 3-Clause license, 00013 * the "License"; You may not use this file except in compliance with the 00014 * License. You may obtain a copy of the License at: 00015 * opensource.org/licenses/BSD-3-Clause 00016 * 00017 ****************************************************************************** 00018 */ 00019 00020 /* Define to prevent recursive inclusion -------------------------------------*/ 00021 #ifndef __STM32F4xx_HAL_UART_H 00022 #define __STM32F4xx_HAL_UART_H 00023 00024 #ifdef __cplusplus 00025 extern "C" { 00026 #endif 00027 00028 /* Includes ------------------------------------------------------------------*/ 00029 #include "stm32f4xx_hal_def.h" 00030 00031 /** @addtogroup STM32F4xx_HAL_Driver 00032 * @{ 00033 */ 00034 00035 /** @addtogroup UART 00036 * @{ 00037 */ 00038 00039 /* Exported types ------------------------------------------------------------*/ 00040 /** @defgroup UART_Exported_Types UART Exported Types 00041 * @{ 00042 */ 00043 00044 /** 00045 * @brief UART Init Structure definition 00046 */ 00047 typedef struct 00048 { 00049 uint32_t BaudRate; /*!< This member configures the UART communication baud rate. 00050 The baud rate is computed using the following formula: 00051 - IntegerDivider = ((PCLKx) / (8 * (OVR8+1) * (huart->Init.BaudRate))) 00052 - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8 * (OVR8+1)) + 0.5 00053 Where OVR8 is the "oversampling by 8 mode" configuration bit in the CR1 register. */ 00054 00055 uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received in a frame. 00056 This parameter can be a value of @ref UART_Word_Length */ 00057 00058 uint32_t StopBits; /*!< Specifies the number of stop bits transmitted. 00059 This parameter can be a value of @ref UART_Stop_Bits */ 00060 00061 uint32_t Parity; /*!< Specifies the parity mode. 00062 This parameter can be a value of @ref UART_Parity 00063 @note When parity is enabled, the computed parity is inserted 00064 at the MSB position of the transmitted data (9th bit when 00065 the word length is set to 9 data bits; 8th bit when the 00066 word length is set to 8 data bits). */ 00067 00068 uint32_t Mode; /*!< Specifies whether the Receive or Transmit mode is enabled or disabled. 00069 This parameter can be a value of @ref UART_Mode */ 00070 00071 uint32_t HwFlowCtl; /*!< Specifies whether the hardware flow control mode is enabled or disabled. 00072 This parameter can be a value of @ref UART_Hardware_Flow_Control */ 00073 00074 uint32_t OverSampling; /*!< Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher speed (up to fPCLK/8). 00075 This parameter can be a value of @ref UART_Over_Sampling */ 00076 } UART_InitTypeDef; 00077 00078 /** 00079 * @brief HAL UART State structures definition 00080 * @note HAL UART State value is a combination of 2 different substates: gState and RxState. 00081 * - gState contains UART state information related to global Handle management 00082 * and also information related to Tx operations. 00083 * gState value coding follow below described bitmap : 00084 * b7-b6 Error information 00085 * 00 : No Error 00086 * 01 : (Not Used) 00087 * 10 : Timeout 00088 * 11 : Error 00089 * b5 Peripheral initialization status 00090 * 0 : Reset (Peripheral not initialized) 00091 * 1 : Init done (Peripheral initialized. HAL UART Init function already called) 00092 * b4-b3 (not used) 00093 * xx : Should be set to 00 00094 * b2 Intrinsic process state 00095 * 0 : Ready 00096 * 1 : Busy (Peripheral busy with some configuration or internal operations) 00097 * b1 (not used) 00098 * x : Should be set to 0 00099 * b0 Tx state 00100 * 0 : Ready (no Tx operation ongoing) 00101 * 1 : Busy (Tx operation ongoing) 00102 * - RxState contains information related to Rx operations. 00103 * RxState value coding follow below described bitmap : 00104 * b7-b6 (not used) 00105 * xx : Should be set to 00 00106 * b5 Peripheral initialization status 00107 * 0 : Reset (Peripheral not initialized) 00108 * 1 : Init done (Peripheral initialized) 00109 * b4-b2 (not used) 00110 * xxx : Should be set to 000 00111 * b1 Rx state 00112 * 0 : Ready (no Rx operation ongoing) 00113 * 1 : Busy (Rx operation ongoing) 00114 * b0 (not used) 00115 * x : Should be set to 0. 00116 */ 00117 typedef enum 00118 { 00119 HAL_UART_STATE_RESET = 0x00U, /*!< Peripheral is not yet Initialized 00120 Value is allowed for gState and RxState */ 00121 HAL_UART_STATE_READY = 0x20U, /*!< Peripheral Initialized and ready for use 00122 Value is allowed for gState and RxState */ 00123 HAL_UART_STATE_BUSY = 0x24U, /*!< an internal process is ongoing 00124 Value is allowed for gState only */ 00125 HAL_UART_STATE_BUSY_TX = 0x21U, /*!< Data Transmission process is ongoing 00126 Value is allowed for gState only */ 00127 HAL_UART_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing 00128 Value is allowed for RxState only */ 00129 HAL_UART_STATE_BUSY_TX_RX = 0x23U, /*!< Data Transmission and Reception process is ongoing 00130 Not to be used for neither gState nor RxState. 00131 Value is result of combination (Or) between gState and RxState values */ 00132 HAL_UART_STATE_TIMEOUT = 0xA0U, /*!< Timeout state 00133 Value is allowed for gState only */ 00134 HAL_UART_STATE_ERROR = 0xE0U /*!< Error 00135 Value is allowed for gState only */ 00136 } HAL_UART_StateTypeDef; 00137 00138 /** 00139 * @brief HAL UART Reception type definition 00140 * @note HAL UART Reception type value aims to identify which type of Reception is ongoing. 00141 * It is expected to admit following values : 00142 * HAL_UART_RECEPTION_STANDARD = 0x00U, 00143 * HAL_UART_RECEPTION_TOIDLE = 0x01U, 00144 */ 00145 typedef uint32_t HAL_UART_RxTypeTypeDef; 00146 00147 /** 00148 * @brief UART handle Structure definition 00149 */ 00150 typedef struct __UART_HandleTypeDef 00151 { 00152 USART_TypeDef *Instance; /*!< UART registers base address */ 00153 00154 UART_InitTypeDef Init; /*!< UART communication parameters */ 00155 00156 uint8_t *pTxBuffPtr; /*!< Pointer to UART Tx transfer Buffer */ 00157 00158 uint16_t TxXferSize; /*!< UART Tx Transfer size */ 00159 00160 __IO uint16_t TxXferCount; /*!< UART Tx Transfer Counter */ 00161 00162 uint8_t *pRxBuffPtr; /*!< Pointer to UART Rx transfer Buffer */ 00163 00164 uint16_t RxXferSize; /*!< UART Rx Transfer size */ 00165 00166 __IO uint16_t RxXferCount; /*!< UART Rx Transfer Counter */ 00167 00168 __IO HAL_UART_RxTypeTypeDef ReceptionType; /*!< Type of ongoing reception */ 00169 00170 DMA_HandleTypeDef *hdmatx; /*!< UART Tx DMA Handle parameters */ 00171 00172 DMA_HandleTypeDef *hdmarx; /*!< UART Rx DMA Handle parameters */ 00173 00174 HAL_LockTypeDef Lock; /*!< Locking object */ 00175 00176 __IO HAL_UART_StateTypeDef gState; /*!< UART state information related to global Handle management 00177 and also related to Tx operations. 00178 This parameter can be a value of @ref HAL_UART_StateTypeDef */ 00179 00180 __IO HAL_UART_StateTypeDef RxState; /*!< UART state information related to Rx operations. 00181 This parameter can be a value of @ref HAL_UART_StateTypeDef */ 00182 00183 __IO uint32_t ErrorCode; /*!< UART Error code */ 00184 00185 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 00186 void (* TxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Half Complete Callback */ 00187 void (* TxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Complete Callback */ 00188 void (* RxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Half Complete Callback */ 00189 void (* RxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Complete Callback */ 00190 void (* ErrorCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Error Callback */ 00191 void (* AbortCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Complete Callback */ 00192 void (* AbortTransmitCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Transmit Complete Callback */ 00193 void (* AbortReceiveCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Receive Complete Callback */ 00194 void (* WakeupCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Wakeup Callback */ 00195 void (* RxEventCallback)(struct __UART_HandleTypeDef *huart, uint16_t Pos); /*!< UART Reception Event Callback */ 00196 00197 void (* MspInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp Init callback */ 00198 void (* MspDeInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp DeInit callback */ 00199 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 00200 00201 } UART_HandleTypeDef; 00202 00203 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 00204 /** 00205 * @brief HAL UART Callback ID enumeration definition 00206 */ 00207 typedef enum 00208 { 00209 HAL_UART_TX_HALFCOMPLETE_CB_ID = 0x00U, /*!< UART Tx Half Complete Callback ID */ 00210 HAL_UART_TX_COMPLETE_CB_ID = 0x01U, /*!< UART Tx Complete Callback ID */ 00211 HAL_UART_RX_HALFCOMPLETE_CB_ID = 0x02U, /*!< UART Rx Half Complete Callback ID */ 00212 HAL_UART_RX_COMPLETE_CB_ID = 0x03U, /*!< UART Rx Complete Callback ID */ 00213 HAL_UART_ERROR_CB_ID = 0x04U, /*!< UART Error Callback ID */ 00214 HAL_UART_ABORT_COMPLETE_CB_ID = 0x05U, /*!< UART Abort Complete Callback ID */ 00215 HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID = 0x06U, /*!< UART Abort Transmit Complete Callback ID */ 00216 HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID = 0x07U, /*!< UART Abort Receive Complete Callback ID */ 00217 HAL_UART_WAKEUP_CB_ID = 0x08U, /*!< UART Wakeup Callback ID */ 00218 00219 HAL_UART_MSPINIT_CB_ID = 0x0BU, /*!< UART MspInit callback ID */ 00220 HAL_UART_MSPDEINIT_CB_ID = 0x0CU /*!< UART MspDeInit callback ID */ 00221 00222 } HAL_UART_CallbackIDTypeDef; 00223 00224 /** 00225 * @brief HAL UART Callback pointer definition 00226 */ 00227 typedef void (*pUART_CallbackTypeDef)(UART_HandleTypeDef *huart); /*!< pointer to an UART callback function */ 00228 typedef void (*pUART_RxEventCallbackTypeDef)(struct __UART_HandleTypeDef *huart, uint16_t Pos); /*!< pointer to a UART Rx Event specific callback function */ 00229 00230 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 00231 00232 /** 00233 * @} 00234 */ 00235 00236 /* Exported constants --------------------------------------------------------*/ 00237 /** @defgroup UART_Exported_Constants UART Exported Constants 00238 * @{ 00239 */ 00240 00241 /** @defgroup UART_Error_Code UART Error Code 00242 * @{ 00243 */ 00244 #define HAL_UART_ERROR_NONE 0x00000000U /*!< No error */ 00245 #define HAL_UART_ERROR_PE 0x00000001U /*!< Parity error */ 00246 #define HAL_UART_ERROR_NE 0x00000002U /*!< Noise error */ 00247 #define HAL_UART_ERROR_FE 0x00000004U /*!< Frame error */ 00248 #define HAL_UART_ERROR_ORE 0x00000008U /*!< Overrun error */ 00249 #define HAL_UART_ERROR_DMA 0x00000010U /*!< DMA transfer error */ 00250 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 00251 #define HAL_UART_ERROR_INVALID_CALLBACK 0x00000020U /*!< Invalid Callback error */ 00252 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 00253 /** 00254 * @} 00255 */ 00256 00257 /** @defgroup UART_Word_Length UART Word Length 00258 * @{ 00259 */ 00260 #define UART_WORDLENGTH_8B 0x00000000U 00261 #define UART_WORDLENGTH_9B ((uint32_t)USART_CR1_M) 00262 /** 00263 * @} 00264 */ 00265 00266 /** @defgroup UART_Stop_Bits UART Number of Stop Bits 00267 * @{ 00268 */ 00269 #define UART_STOPBITS_1 0x00000000U 00270 #define UART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1) 00271 /** 00272 * @} 00273 */ 00274 00275 /** @defgroup UART_Parity UART Parity 00276 * @{ 00277 */ 00278 #define UART_PARITY_NONE 0x00000000U 00279 #define UART_PARITY_EVEN ((uint32_t)USART_CR1_PCE) 00280 #define UART_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS)) 00281 /** 00282 * @} 00283 */ 00284 00285 /** @defgroup UART_Hardware_Flow_Control UART Hardware Flow Control 00286 * @{ 00287 */ 00288 #define UART_HWCONTROL_NONE 0x00000000U 00289 #define UART_HWCONTROL_RTS ((uint32_t)USART_CR3_RTSE) 00290 #define UART_HWCONTROL_CTS ((uint32_t)USART_CR3_CTSE) 00291 #define UART_HWCONTROL_RTS_CTS ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE)) 00292 /** 00293 * @} 00294 */ 00295 00296 /** @defgroup UART_Mode UART Transfer Mode 00297 * @{ 00298 */ 00299 #define UART_MODE_RX ((uint32_t)USART_CR1_RE) 00300 #define UART_MODE_TX ((uint32_t)USART_CR1_TE) 00301 #define UART_MODE_TX_RX ((uint32_t)(USART_CR1_TE | USART_CR1_RE)) 00302 /** 00303 * @} 00304 */ 00305 00306 /** @defgroup UART_State UART State 00307 * @{ 00308 */ 00309 #define UART_STATE_DISABLE 0x00000000U 00310 #define UART_STATE_ENABLE ((uint32_t)USART_CR1_UE) 00311 /** 00312 * @} 00313 */ 00314 00315 /** @defgroup UART_Over_Sampling UART Over Sampling 00316 * @{ 00317 */ 00318 #define UART_OVERSAMPLING_16 0x00000000U 00319 #define UART_OVERSAMPLING_8 ((uint32_t)USART_CR1_OVER8) 00320 /** 00321 * @} 00322 */ 00323 00324 /** @defgroup UART_LIN_Break_Detection_Length UART LIN Break Detection Length 00325 * @{ 00326 */ 00327 #define UART_LINBREAKDETECTLENGTH_10B 0x00000000U 00328 #define UART_LINBREAKDETECTLENGTH_11B ((uint32_t)USART_CR2_LBDL) 00329 /** 00330 * @} 00331 */ 00332 00333 /** @defgroup UART_WakeUp_functions UART Wakeup Functions 00334 * @{ 00335 */ 00336 #define UART_WAKEUPMETHOD_IDLELINE 0x00000000U 00337 #define UART_WAKEUPMETHOD_ADDRESSMARK ((uint32_t)USART_CR1_WAKE) 00338 /** 00339 * @} 00340 */ 00341 00342 /** @defgroup UART_Flags UART FLags 00343 * Elements values convention: 0xXXXX 00344 * - 0xXXXX : Flag mask in the SR register 00345 * @{ 00346 */ 00347 #define UART_FLAG_CTS ((uint32_t)USART_SR_CTS) 00348 #define UART_FLAG_LBD ((uint32_t)USART_SR_LBD) 00349 #define UART_FLAG_TXE ((uint32_t)USART_SR_TXE) 00350 #define UART_FLAG_TC ((uint32_t)USART_SR_TC) 00351 #define UART_FLAG_RXNE ((uint32_t)USART_SR_RXNE) 00352 #define UART_FLAG_IDLE ((uint32_t)USART_SR_IDLE) 00353 #define UART_FLAG_ORE ((uint32_t)USART_SR_ORE) 00354 #define UART_FLAG_NE ((uint32_t)USART_SR_NE) 00355 #define UART_FLAG_FE ((uint32_t)USART_SR_FE) 00356 #define UART_FLAG_PE ((uint32_t)USART_SR_PE) 00357 /** 00358 * @} 00359 */ 00360 00361 /** @defgroup UART_Interrupt_definition UART Interrupt Definitions 00362 * Elements values convention: 0xY000XXXX 00363 * - XXXX : Interrupt mask (16 bits) in the Y register 00364 * - Y : Interrupt source register (2bits) 00365 * - 0001: CR1 register 00366 * - 0010: CR2 register 00367 * - 0011: CR3 register 00368 * @{ 00369 */ 00370 00371 #define UART_IT_PE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_PEIE)) 00372 #define UART_IT_TXE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TXEIE)) 00373 #define UART_IT_TC ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TCIE)) 00374 #define UART_IT_RXNE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_RXNEIE)) 00375 #define UART_IT_IDLE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_IDLEIE)) 00376 00377 #define UART_IT_LBD ((uint32_t)(UART_CR2_REG_INDEX << 28U | USART_CR2_LBDIE)) 00378 00379 #define UART_IT_CTS ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_CTSIE)) 00380 #define UART_IT_ERR ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_EIE)) 00381 /** 00382 * @} 00383 */ 00384 00385 /** @defgroup UART_RECEPTION_TYPE_Values UART Reception type values 00386 * @{ 00387 */ 00388 #define HAL_UART_RECEPTION_STANDARD (0x00000000U) /*!< Standard reception */ 00389 #define HAL_UART_RECEPTION_TOIDLE (0x00000001U) /*!< Reception till completion or IDLE event */ 00390 /** 00391 * @} 00392 */ 00393 00394 /** 00395 * @} 00396 */ 00397 00398 /* Exported macro ------------------------------------------------------------*/ 00399 /** @defgroup UART_Exported_Macros UART Exported Macros 00400 * @{ 00401 */ 00402 00403 /** @brief Reset UART handle gstate & RxState 00404 * @param __HANDLE__ specifies the UART Handle. 00405 * UART Handle selects the USARTx or UARTy peripheral 00406 * (USART,UART availability and x,y values depending on device). 00407 * @retval None 00408 */ 00409 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 00410 #define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \ 00411 (__HANDLE__)->gState = HAL_UART_STATE_RESET; \ 00412 (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \ 00413 (__HANDLE__)->MspInitCallback = NULL; \ 00414 (__HANDLE__)->MspDeInitCallback = NULL; \ 00415 } while(0U) 00416 #else 00417 #define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \ 00418 (__HANDLE__)->gState = HAL_UART_STATE_RESET; \ 00419 (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \ 00420 } while(0U) 00421 #endif /*USE_HAL_UART_REGISTER_CALLBACKS */ 00422 00423 /** @brief Flushes the UART DR register 00424 * @param __HANDLE__ specifies the UART Handle. 00425 * UART Handle selects the USARTx or UARTy peripheral 00426 * (USART,UART availability and x,y values depending on device). 00427 */ 00428 #define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR) 00429 00430 /** @brief Checks whether the specified UART flag is set or not. 00431 * @param __HANDLE__ specifies the UART Handle. 00432 * UART Handle selects the USARTx or UARTy peripheral 00433 * (USART,UART availability and x,y values depending on device). 00434 * @param __FLAG__ specifies the flag to check. 00435 * This parameter can be one of the following values: 00436 * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5) 00437 * @arg UART_FLAG_LBD: LIN Break detection flag 00438 * @arg UART_FLAG_TXE: Transmit data register empty flag 00439 * @arg UART_FLAG_TC: Transmission Complete flag 00440 * @arg UART_FLAG_RXNE: Receive data register not empty flag 00441 * @arg UART_FLAG_IDLE: Idle Line detection flag 00442 * @arg UART_FLAG_ORE: Overrun Error flag 00443 * @arg UART_FLAG_NE: Noise Error flag 00444 * @arg UART_FLAG_FE: Framing Error flag 00445 * @arg UART_FLAG_PE: Parity Error flag 00446 * @retval The new state of __FLAG__ (TRUE or FALSE). 00447 */ 00448 #define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__)) 00449 00450 /** @brief Clears the specified UART pending flag. 00451 * @param __HANDLE__ specifies the UART Handle. 00452 * UART Handle selects the USARTx or UARTy peripheral 00453 * (USART,UART availability and x,y values depending on device). 00454 * @param __FLAG__ specifies the flag to check. 00455 * This parameter can be any combination of the following values: 00456 * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5). 00457 * @arg UART_FLAG_LBD: LIN Break detection flag. 00458 * @arg UART_FLAG_TC: Transmission Complete flag. 00459 * @arg UART_FLAG_RXNE: Receive data register not empty flag. 00460 * 00461 * @note PE (Parity error), FE (Framing error), NE (Noise error), ORE (Overrun 00462 * error) and IDLE (Idle line detected) flags are cleared by software 00463 * sequence: a read operation to USART_SR register followed by a read 00464 * operation to USART_DR register. 00465 * @note RXNE flag can be also cleared by a read to the USART_DR register. 00466 * @note TC flag can be also cleared by software sequence: a read operation to 00467 * USART_SR register followed by a write operation to USART_DR register. 00468 * @note TXE flag is cleared only by a write to the USART_DR register. 00469 * 00470 * @retval None 00471 */ 00472 #define __HAL_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__)) 00473 00474 /** @brief Clears the UART PE pending flag. 00475 * @param __HANDLE__ specifies the UART Handle. 00476 * UART Handle selects the USARTx or UARTy peripheral 00477 * (USART,UART availability and x,y values depending on device). 00478 * @retval None 00479 */ 00480 #define __HAL_UART_CLEAR_PEFLAG(__HANDLE__) \ 00481 do{ \ 00482 __IO uint32_t tmpreg = 0x00U; \ 00483 tmpreg = (__HANDLE__)->Instance->SR; \ 00484 tmpreg = (__HANDLE__)->Instance->DR; \ 00485 UNUSED(tmpreg); \ 00486 } while(0U) 00487 00488 /** @brief Clears the UART FE pending flag. 00489 * @param __HANDLE__ specifies the UART Handle. 00490 * UART Handle selects the USARTx or UARTy peripheral 00491 * (USART,UART availability and x,y values depending on device). 00492 * @retval None 00493 */ 00494 #define __HAL_UART_CLEAR_FEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 00495 00496 /** @brief Clears the UART NE pending flag. 00497 * @param __HANDLE__ specifies the UART Handle. 00498 * UART Handle selects the USARTx or UARTy peripheral 00499 * (USART,UART availability and x,y values depending on device). 00500 * @retval None 00501 */ 00502 #define __HAL_UART_CLEAR_NEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 00503 00504 /** @brief Clears the UART ORE pending flag. 00505 * @param __HANDLE__ specifies the UART Handle. 00506 * UART Handle selects the USARTx or UARTy peripheral 00507 * (USART,UART availability and x,y values depending on device). 00508 * @retval None 00509 */ 00510 #define __HAL_UART_CLEAR_OREFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 00511 00512 /** @brief Clears the UART IDLE pending flag. 00513 * @param __HANDLE__ specifies the UART Handle. 00514 * UART Handle selects the USARTx or UARTy peripheral 00515 * (USART,UART availability and x,y values depending on device). 00516 * @retval None 00517 */ 00518 #define __HAL_UART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) 00519 00520 /** @brief Enable the specified UART interrupt. 00521 * @param __HANDLE__ specifies the UART Handle. 00522 * UART Handle selects the USARTx or UARTy peripheral 00523 * (USART,UART availability and x,y values depending on device). 00524 * @param __INTERRUPT__ specifies the UART interrupt source to enable. 00525 * This parameter can be one of the following values: 00526 * @arg UART_IT_CTS: CTS change interrupt 00527 * @arg UART_IT_LBD: LIN Break detection interrupt 00528 * @arg UART_IT_TXE: Transmit Data Register empty interrupt 00529 * @arg UART_IT_TC: Transmission complete interrupt 00530 * @arg UART_IT_RXNE: Receive Data register not empty interrupt 00531 * @arg UART_IT_IDLE: Idle line detection interrupt 00532 * @arg UART_IT_PE: Parity Error interrupt 00533 * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) 00534 * @retval None 00535 */ 00536 #define __HAL_UART_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & UART_IT_MASK)): \ 00537 (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & UART_IT_MASK)): \ 00538 ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & UART_IT_MASK))) 00539 00540 /** @brief Disable the specified UART interrupt. 00541 * @param __HANDLE__ specifies the UART Handle. 00542 * UART Handle selects the USARTx or UARTy peripheral 00543 * (USART,UART availability and x,y values depending on device). 00544 * @param __INTERRUPT__ specifies the UART interrupt source to disable. 00545 * This parameter can be one of the following values: 00546 * @arg UART_IT_CTS: CTS change interrupt 00547 * @arg UART_IT_LBD: LIN Break detection interrupt 00548 * @arg UART_IT_TXE: Transmit Data Register empty interrupt 00549 * @arg UART_IT_TC: Transmission complete interrupt 00550 * @arg UART_IT_RXNE: Receive Data register not empty interrupt 00551 * @arg UART_IT_IDLE: Idle line detection interrupt 00552 * @arg UART_IT_PE: Parity Error interrupt 00553 * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) 00554 * @retval None 00555 */ 00556 #define __HAL_UART_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & UART_IT_MASK)): \ 00557 (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & UART_IT_MASK)): \ 00558 ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK))) 00559 00560 /** @brief Checks whether the specified UART interrupt source is enabled or not. 00561 * @param __HANDLE__ specifies the UART Handle. 00562 * UART Handle selects the USARTx or UARTy peripheral 00563 * (USART,UART availability and x,y values depending on device). 00564 * @param __IT__ specifies the UART interrupt source to check. 00565 * This parameter can be one of the following values: 00566 * @arg UART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) 00567 * @arg UART_IT_LBD: LIN Break detection interrupt 00568 * @arg UART_IT_TXE: Transmit Data Register empty interrupt 00569 * @arg UART_IT_TC: Transmission complete interrupt 00570 * @arg UART_IT_RXNE: Receive Data register not empty interrupt 00571 * @arg UART_IT_IDLE: Idle line detection interrupt 00572 * @arg UART_IT_ERR: Error interrupt 00573 * @retval The new state of __IT__ (TRUE or FALSE). 00574 */ 00575 #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)? \ 00576 (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & UART_IT_MASK)) 00577 00578 /** @brief Enable CTS flow control 00579 * @note This macro allows to enable CTS hardware flow control for a given UART instance, 00580 * without need to call HAL_UART_Init() function. 00581 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 00582 * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need 00583 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 00584 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 00585 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 00586 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 00587 * @param __HANDLE__ specifies the UART Handle. 00588 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 00589 * It is used to select the USART peripheral (USART availability and x value depending on device). 00590 * @retval None 00591 */ 00592 #define __HAL_UART_HWCONTROL_CTS_ENABLE(__HANDLE__) \ 00593 do{ \ 00594 ATOMIC_SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ 00595 (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_CTSE; \ 00596 } while(0U) 00597 00598 /** @brief Disable CTS flow control 00599 * @note This macro allows to disable CTS hardware flow control for a given UART instance, 00600 * without need to call HAL_UART_Init() function. 00601 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 00602 * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need 00603 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 00604 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 00605 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 00606 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 00607 * @param __HANDLE__ specifies the UART Handle. 00608 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 00609 * It is used to select the USART peripheral (USART availability and x value depending on device). 00610 * @retval None 00611 */ 00612 #define __HAL_UART_HWCONTROL_CTS_DISABLE(__HANDLE__) \ 00613 do{ \ 00614 ATOMIC_CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ 00615 (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_CTSE); \ 00616 } while(0U) 00617 00618 /** @brief Enable RTS flow control 00619 * This macro allows to enable RTS hardware flow control for a given UART instance, 00620 * without need to call HAL_UART_Init() function. 00621 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 00622 * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need 00623 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 00624 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 00625 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 00626 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 00627 * @param __HANDLE__ specifies the UART Handle. 00628 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 00629 * It is used to select the USART peripheral (USART availability and x value depending on device). 00630 * @retval None 00631 */ 00632 #define __HAL_UART_HWCONTROL_RTS_ENABLE(__HANDLE__) \ 00633 do{ \ 00634 ATOMIC_SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE); \ 00635 (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_RTSE; \ 00636 } while(0U) 00637 00638 /** @brief Disable RTS flow control 00639 * This macro allows to disable RTS hardware flow control for a given UART instance, 00640 * without need to call HAL_UART_Init() function. 00641 * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. 00642 * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need 00643 * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : 00644 * - UART instance should have already been initialised (through call of HAL_UART_Init() ) 00645 * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) 00646 * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). 00647 * @param __HANDLE__ specifies the UART Handle. 00648 * The Handle Instance can be any USARTx (supporting the HW Flow control feature). 00649 * It is used to select the USART peripheral (USART availability and x value depending on device). 00650 * @retval None 00651 */ 00652 #define __HAL_UART_HWCONTROL_RTS_DISABLE(__HANDLE__) \ 00653 do{ \ 00654 ATOMIC_CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE);\ 00655 (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_RTSE); \ 00656 } while(0U) 00657 00658 /** @brief Macro to enable the UART's one bit sample method 00659 * @param __HANDLE__ specifies the UART Handle. 00660 * @retval None 00661 */ 00662 #define __HAL_UART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT) 00663 00664 /** @brief Macro to disable the UART's one bit sample method 00665 * @param __HANDLE__ specifies the UART Handle. 00666 * @retval None 00667 */ 00668 #define __HAL_UART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3\ 00669 &= (uint16_t)~((uint16_t)USART_CR3_ONEBIT)) 00670 00671 /** @brief Enable UART 00672 * @param __HANDLE__ specifies the UART Handle. 00673 * @retval None 00674 */ 00675 #define __HAL_UART_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 |= USART_CR1_UE) 00676 00677 /** @brief Disable UART 00678 * @param __HANDLE__ specifies the UART Handle. 00679 * @retval None 00680 */ 00681 #define __HAL_UART_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE) 00682 /** 00683 * @} 00684 */ 00685 00686 /* Exported functions --------------------------------------------------------*/ 00687 /** @addtogroup UART_Exported_Functions 00688 * @{ 00689 */ 00690 00691 /** @addtogroup UART_Exported_Functions_Group1 Initialization and de-initialization functions 00692 * @{ 00693 */ 00694 00695 /* Initialization/de-initialization functions **********************************/ 00696 HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart); 00697 HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart); 00698 HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength); 00699 HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod); 00700 HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart); 00701 void HAL_UART_MspInit(UART_HandleTypeDef *huart); 00702 void HAL_UART_MspDeInit(UART_HandleTypeDef *huart); 00703 00704 /* Callbacks Register/UnRegister functions ***********************************/ 00705 #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) 00706 HAL_StatusTypeDef HAL_UART_RegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID, 00707 pUART_CallbackTypeDef pCallback); 00708 HAL_StatusTypeDef HAL_UART_UnRegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID); 00709 00710 HAL_StatusTypeDef HAL_UART_RegisterRxEventCallback(UART_HandleTypeDef *huart, pUART_RxEventCallbackTypeDef pCallback); 00711 HAL_StatusTypeDef HAL_UART_UnRegisterRxEventCallback(UART_HandleTypeDef *huart); 00712 #endif /* USE_HAL_UART_REGISTER_CALLBACKS */ 00713 00714 /** 00715 * @} 00716 */ 00717 00718 /** @addtogroup UART_Exported_Functions_Group2 IO operation functions 00719 * @{ 00720 */ 00721 00722 /* IO operation functions *******************************************************/ 00723 HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout); 00724 HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout); 00725 HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 00726 HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 00727 HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 00728 HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 00729 HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart); 00730 HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart); 00731 HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart); 00732 00733 HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint16_t *RxLen, 00734 uint32_t Timeout); 00735 HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 00736 HAL_StatusTypeDef HAL_UARTEx_ReceiveToIdle_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 00737 00738 /* Transfer Abort functions */ 00739 HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart); 00740 HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart); 00741 HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart); 00742 HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart); 00743 HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart); 00744 HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart); 00745 00746 void HAL_UART_IRQHandler(UART_HandleTypeDef *huart); 00747 void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart); 00748 void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart); 00749 void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart); 00750 void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart); 00751 void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart); 00752 void HAL_UART_AbortCpltCallback(UART_HandleTypeDef *huart); 00753 void HAL_UART_AbortTransmitCpltCallback(UART_HandleTypeDef *huart); 00754 void HAL_UART_AbortReceiveCpltCallback(UART_HandleTypeDef *huart); 00755 00756 void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size); 00757 00758 /** 00759 * @} 00760 */ 00761 00762 /** @addtogroup UART_Exported_Functions_Group3 00763 * @{ 00764 */ 00765 /* Peripheral Control functions ************************************************/ 00766 HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart); 00767 HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart); 00768 HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart); 00769 HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart); 00770 HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart); 00771 /** 00772 * @} 00773 */ 00774 00775 /** @addtogroup UART_Exported_Functions_Group4 00776 * @{ 00777 */ 00778 /* Peripheral State functions **************************************************/ 00779 HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart); 00780 uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart); 00781 /** 00782 * @} 00783 */ 00784 00785 /** 00786 * @} 00787 */ 00788 /* Private types -------------------------------------------------------------*/ 00789 /* Private variables ---------------------------------------------------------*/ 00790 /* Private constants ---------------------------------------------------------*/ 00791 /** @defgroup UART_Private_Constants UART Private Constants 00792 * @{ 00793 */ 00794 /** @brief UART interruptions flag mask 00795 * 00796 */ 00797 #define UART_IT_MASK 0x0000FFFFU 00798 00799 #define UART_CR1_REG_INDEX 1U 00800 #define UART_CR2_REG_INDEX 2U 00801 #define UART_CR3_REG_INDEX 3U 00802 /** 00803 * @} 00804 */ 00805 00806 /* Private macros ------------------------------------------------------------*/ 00807 /** @defgroup UART_Private_Macros UART Private Macros 00808 * @{ 00809 */ 00810 #define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) || \ 00811 ((LENGTH) == UART_WORDLENGTH_9B)) 00812 #define IS_UART_LIN_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B)) 00813 #define IS_UART_STOPBITS(STOPBITS) (((STOPBITS) == UART_STOPBITS_1) || \ 00814 ((STOPBITS) == UART_STOPBITS_2)) 00815 #define IS_UART_PARITY(PARITY) (((PARITY) == UART_PARITY_NONE) || \ 00816 ((PARITY) == UART_PARITY_EVEN) || \ 00817 ((PARITY) == UART_PARITY_ODD)) 00818 #define IS_UART_HARDWARE_FLOW_CONTROL(CONTROL)\ 00819 (((CONTROL) == UART_HWCONTROL_NONE) || \ 00820 ((CONTROL) == UART_HWCONTROL_RTS) || \ 00821 ((CONTROL) == UART_HWCONTROL_CTS) || \ 00822 ((CONTROL) == UART_HWCONTROL_RTS_CTS)) 00823 #define IS_UART_MODE(MODE) ((((MODE) & 0x0000FFF3U) == 0x00U) && ((MODE) != 0x00U)) 00824 #define IS_UART_STATE(STATE) (((STATE) == UART_STATE_DISABLE) || \ 00825 ((STATE) == UART_STATE_ENABLE)) 00826 #define IS_UART_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16) || \ 00827 ((SAMPLING) == UART_OVERSAMPLING_8)) 00828 #define IS_UART_LIN_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16)) 00829 #define IS_UART_LIN_BREAK_DETECT_LENGTH(LENGTH) (((LENGTH) == UART_LINBREAKDETECTLENGTH_10B) || \ 00830 ((LENGTH) == UART_LINBREAKDETECTLENGTH_11B)) 00831 #define IS_UART_WAKEUPMETHOD(WAKEUP) (((WAKEUP) == UART_WAKEUPMETHOD_IDLELINE) || \ 00832 ((WAKEUP) == UART_WAKEUPMETHOD_ADDRESSMARK)) 00833 #define IS_UART_BAUDRATE(BAUDRATE) ((BAUDRATE) <= 10500000U) 00834 #define IS_UART_ADDRESS(ADDRESS) ((ADDRESS) <= 0x0FU) 00835 00836 #define UART_DIV_SAMPLING16(_PCLK_, _BAUD_) ((uint32_t)((((uint64_t)(_PCLK_))*25U)/(4U*((uint64_t)(_BAUD_))))) 00837 #define UART_DIVMANT_SAMPLING16(_PCLK_, _BAUD_) (UART_DIV_SAMPLING16((_PCLK_), (_BAUD_))/100U) 00838 #define UART_DIVFRAQ_SAMPLING16(_PCLK_, _BAUD_) ((((UART_DIV_SAMPLING16((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) * 100U)) * 16U)\ 00839 + 50U) / 100U) 00840 /* UART BRR = mantissa + overflow + fraction 00841 = (UART DIVMANT << 4) + (UART DIVFRAQ & 0xF0) + (UART DIVFRAQ & 0x0FU) */ 00842 #define UART_BRR_SAMPLING16(_PCLK_, _BAUD_) ((UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) << 4U) + \ 00843 (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0xF0U) + \ 00844 (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0x0FU)) 00845 00846 #define UART_DIV_SAMPLING8(_PCLK_, _BAUD_) ((uint32_t)((((uint64_t)(_PCLK_))*25U)/(2U*((uint64_t)(_BAUD_))))) 00847 #define UART_DIVMANT_SAMPLING8(_PCLK_, _BAUD_) (UART_DIV_SAMPLING8((_PCLK_), (_BAUD_))/100U) 00848 #define UART_DIVFRAQ_SAMPLING8(_PCLK_, _BAUD_) ((((UART_DIV_SAMPLING8((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) * 100U)) * 8U)\ 00849 + 50U) / 100U) 00850 /* UART BRR = mantissa + overflow + fraction 00851 = (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07U) */ 00852 #define UART_BRR_SAMPLING8(_PCLK_, _BAUD_) ((UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) << 4U) + \ 00853 ((UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0xF8U) << 1U) + \ 00854 (UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0x07U)) 00855 00856 /** 00857 * @} 00858 */ 00859 00860 /* Private functions ---------------------------------------------------------*/ 00861 /** @defgroup UART_Private_Functions UART Private Functions 00862 * @{ 00863 */ 00864 00865 HAL_StatusTypeDef UART_Start_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 00866 HAL_StatusTypeDef UART_Start_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); 00867 00868 /** 00869 * @} 00870 */ 00871 00872 /** 00873 * @} 00874 */ 00875 00876 /** 00877 * @} 00878 */ 00879 00880 #ifdef __cplusplus 00881 } 00882 #endif 00883 00884 #endif /* __STM32F4xx_HAL_UART_H */ 00885 00886 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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