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2 mjames 1
/**
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  ******************************************************************************
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  * @file    stm32l1xx_hal_uart.h
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  * @author  MCD Application Team
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  * @brief   Header file of UART HAL module.
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  ******************************************************************************
7
  * @attention
8
  *
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  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
10
  * All rights reserved.</center></h2>
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  *
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  * 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
2 mjames 16
  *
17
  ******************************************************************************
28 mjames 18
  */
2 mjames 19
 
20
/* Define to prevent recursive inclusion -------------------------------------*/
21
#ifndef __STM32L1xx_HAL_UART_H
22
#define __STM32L1xx_HAL_UART_H
23
 
24
#ifdef __cplusplus
28 mjames 25
extern "C" {
2 mjames 26
#endif
27
 
28
/* Includes ------------------------------------------------------------------*/
29
#include "stm32l1xx_hal_def.h"
30
 
31
/** @addtogroup STM32L1xx_HAL_Driver
32
  * @{
33
  */
34
 
35
/** @addtogroup UART
36
  * @{
28 mjames 37
  */
2 mjames 38
 
28 mjames 39
/* Exported types ------------------------------------------------------------*/
2 mjames 40
/** @defgroup UART_Exported_Types UART Exported Types
41
  * @{
28 mjames 42
  */
2 mjames 43
 
28 mjames 44
/**
2 mjames 45
  * @brief UART Init Structure definition
28 mjames 46
  */
2 mjames 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)))
28 mjames 52
                                           - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8 * (OVR8+1)) + 0.5
2 mjames 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). */
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68
  uint32_t Mode;                      /*!< Specifies whether the Receive or Transmit mode is enabled or disabled.
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                                           This parameter can be a value of @ref UART_Mode */
70
 
28 mjames 71
  uint32_t HwFlowCtl;                 /*!< Specifies whether the hardware flow control mode is enabled or disabled.
2 mjames 72
                                           This parameter can be a value of @ref UART_Hardware_Flow_Control */
73
 
28 mjames 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 not 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 not 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
  */
2 mjames 117
typedef enum
118
{
28 mjames 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;
2 mjames 137
 
28 mjames 138
/**
139
  * @brief  UART handle Structure definition
140
  */
141
typedef struct __UART_HandleTypeDef
2 mjames 142
{
143
  USART_TypeDef                 *Instance;        /*!< UART registers base address        */
144
 
145
  UART_InitTypeDef              Init;             /*!< UART communication parameters      */
146
 
147
  uint8_t                       *pTxBuffPtr;      /*!< Pointer to UART Tx transfer Buffer */
148
 
149
  uint16_t                      TxXferSize;       /*!< UART Tx Transfer size              */
150
 
28 mjames 151
  __IO uint16_t                 TxXferCount;      /*!< UART Tx Transfer Counter           */
2 mjames 152
 
153
  uint8_t                       *pRxBuffPtr;      /*!< Pointer to UART Rx transfer Buffer */
154
 
155
  uint16_t                      RxXferSize;       /*!< UART Rx Transfer size              */
156
 
28 mjames 157
  __IO uint16_t                 RxXferCount;      /*!< UART Rx Transfer Counter           */
2 mjames 158
 
159
  DMA_HandleTypeDef             *hdmatx;          /*!< UART Tx DMA Handle parameters      */
160
 
161
  DMA_HandleTypeDef             *hdmarx;          /*!< UART Rx DMA Handle parameters      */
162
 
163
  HAL_LockTypeDef               Lock;             /*!< Locking object                     */
164
 
28 mjames 165
  __IO HAL_UART_StateTypeDef    gState;           /*!< UART state information related to global Handle management
166
                                                       and also related to Tx operations.
167
                                                       This parameter can be a value of @ref HAL_UART_StateTypeDef */
168
 
169
  __IO HAL_UART_StateTypeDef    RxState;          /*!< UART state information related to Rx operations.
170
                                                       This parameter can be a value of @ref HAL_UART_StateTypeDef */
171
 
2 mjames 172
  __IO uint32_t                 ErrorCode;        /*!< UART Error code                    */
173
 
28 mjames 174
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
175
  void (* TxHalfCpltCallback)(struct __UART_HandleTypeDef *huart);        /*!< UART Tx Half Complete Callback        */
176
  void (* TxCpltCallback)(struct __UART_HandleTypeDef *huart);            /*!< UART Tx Complete Callback             */
177
  void (* RxHalfCpltCallback)(struct __UART_HandleTypeDef *huart);        /*!< UART Rx Half Complete Callback        */
178
  void (* RxCpltCallback)(struct __UART_HandleTypeDef *huart);            /*!< UART Rx Complete Callback             */
179
  void (* ErrorCallback)(struct __UART_HandleTypeDef *huart);             /*!< UART Error Callback                   */
180
  void (* AbortCpltCallback)(struct __UART_HandleTypeDef *huart);         /*!< UART Abort Complete Callback          */
181
  void (* AbortTransmitCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Transmit Complete Callback */
182
  void (* AbortReceiveCpltCallback)(struct __UART_HandleTypeDef *huart);  /*!< UART Abort Receive Complete Callback  */
183
  void (* WakeupCallback)(struct __UART_HandleTypeDef *huart);            /*!< UART Wakeup Callback                  */
2 mjames 184
 
28 mjames 185
  void (* MspInitCallback)(struct __UART_HandleTypeDef *huart);           /*!< UART Msp Init callback                */
186
  void (* MspDeInitCallback)(struct __UART_HandleTypeDef *huart);         /*!< UART Msp DeInit callback              */
187
#endif  /* USE_HAL_UART_REGISTER_CALLBACKS */
188
 
189
} UART_HandleTypeDef;
190
 
191
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
2 mjames 192
/**
28 mjames 193
  * @brief  HAL UART Callback ID enumeration definition
194
  */
195
typedef enum
196
{
197
  HAL_UART_TX_HALFCOMPLETE_CB_ID         = 0x00U,    /*!< UART Tx Half Complete Callback ID        */
198
  HAL_UART_TX_COMPLETE_CB_ID             = 0x01U,    /*!< UART Tx Complete Callback ID             */
199
  HAL_UART_RX_HALFCOMPLETE_CB_ID         = 0x02U,    /*!< UART Rx Half Complete Callback ID        */
200
  HAL_UART_RX_COMPLETE_CB_ID             = 0x03U,    /*!< UART Rx Complete Callback ID             */
201
  HAL_UART_ERROR_CB_ID                   = 0x04U,    /*!< UART Error Callback ID                   */
202
  HAL_UART_ABORT_COMPLETE_CB_ID          = 0x05U,    /*!< UART Abort Complete Callback ID          */
203
  HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID = 0x06U,    /*!< UART Abort Transmit Complete Callback ID */
204
  HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID  = 0x07U,    /*!< UART Abort Receive Complete Callback ID  */
205
  HAL_UART_WAKEUP_CB_ID                  = 0x08U,    /*!< UART Wakeup Callback ID                  */
206
 
207
  HAL_UART_MSPINIT_CB_ID                 = 0x0BU,    /*!< UART MspInit callback ID                 */
208
  HAL_UART_MSPDEINIT_CB_ID               = 0x0CU     /*!< UART MspDeInit callback ID               */
209
 
210
} HAL_UART_CallbackIDTypeDef;
211
 
212
/**
213
  * @brief  HAL UART Callback pointer definition
214
  */
215
typedef  void (*pUART_CallbackTypeDef)(UART_HandleTypeDef *huart);  /*!< pointer to an UART callback function */
216
 
217
#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
218
 
219
/**
2 mjames 220
  * @}
221
  */
222
 
223
/* Exported constants --------------------------------------------------------*/
28 mjames 224
/** @defgroup UART_Exported_Constants UART Exported Constants
2 mjames 225
  * @{
226
  */
227
 
28 mjames 228
/** @defgroup UART_Error_Code UART Error Code
2 mjames 229
  * @{
230
  */
28 mjames 231
#define HAL_UART_ERROR_NONE              0x00000000U   /*!< No error            */
232
#define HAL_UART_ERROR_PE                0x00000001U   /*!< Parity error        */
233
#define HAL_UART_ERROR_NE                0x00000002U   /*!< Noise error         */
234
#define HAL_UART_ERROR_FE                0x00000004U   /*!< Frame error         */
235
#define HAL_UART_ERROR_ORE               0x00000008U   /*!< Overrun error       */
236
#define HAL_UART_ERROR_DMA               0x00000010U   /*!< DMA transfer error  */
237
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
238
#define  HAL_UART_ERROR_INVALID_CALLBACK 0x00000020U   /*!< Invalid Callback error  */
239
#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
2 mjames 240
/**
241
  * @}
242
  */
243
 
28 mjames 244
/** @defgroup UART_Word_Length UART Word Length
2 mjames 245
  * @{
246
  */
28 mjames 247
#define UART_WORDLENGTH_8B                  0x00000000U
2 mjames 248
#define UART_WORDLENGTH_9B                  ((uint32_t)USART_CR1_M)
249
/**
250
  * @}
251
  */
252
 
28 mjames 253
/** @defgroup UART_Stop_Bits UART Number of Stop Bits
2 mjames 254
  * @{
255
  */
28 mjames 256
#define UART_STOPBITS_1                     0x00000000U
2 mjames 257
#define UART_STOPBITS_2                     ((uint32_t)USART_CR2_STOP_1)
258
/**
259
  * @}
28 mjames 260
  */
2 mjames 261
 
28 mjames 262
/** @defgroup UART_Parity UART Parity
2 mjames 263
  * @{
28 mjames 264
  */
265
#define UART_PARITY_NONE                    0x00000000U
2 mjames 266
#define UART_PARITY_EVEN                    ((uint32_t)USART_CR1_PCE)
28 mjames 267
#define UART_PARITY_ODD                     ((uint32_t)(USART_CR1_PCE | USART_CR1_PS))
2 mjames 268
/**
269
  * @}
28 mjames 270
  */
2 mjames 271
 
272
/** @defgroup UART_Hardware_Flow_Control UART Hardware Flow Control
273
  * @{
28 mjames 274
  */
275
#define UART_HWCONTROL_NONE                  0x00000000U
2 mjames 276
#define UART_HWCONTROL_RTS                   ((uint32_t)USART_CR3_RTSE)
277
#define UART_HWCONTROL_CTS                   ((uint32_t)USART_CR3_CTSE)
278
#define UART_HWCONTROL_RTS_CTS               ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE))
279
/**
280
  * @}
281
  */
282
 
283
/** @defgroup UART_Mode UART Transfer Mode
284
  * @{
28 mjames 285
  */
2 mjames 286
#define UART_MODE_RX                        ((uint32_t)USART_CR1_RE)
287
#define UART_MODE_TX                        ((uint32_t)USART_CR1_TE)
28 mjames 288
#define UART_MODE_TX_RX                     ((uint32_t)(USART_CR1_TE | USART_CR1_RE))
2 mjames 289
/**
290
  * @}
291
  */
28 mjames 292
 
293
/** @defgroup UART_State UART State
2 mjames 294
  * @{
28 mjames 295
  */
296
#define UART_STATE_DISABLE                  0x00000000U
2 mjames 297
#define UART_STATE_ENABLE                   ((uint32_t)USART_CR1_UE)
298
/**
299
  * @}
300
  */
301
 
302
/** @defgroup UART_Over_Sampling UART Over Sampling
303
  * @{
304
  */
28 mjames 305
#define UART_OVERSAMPLING_16                    0x00000000U
2 mjames 306
#define UART_OVERSAMPLING_8                     ((uint32_t)USART_CR1_OVER8)
307
/**
308
  * @}
309
  */
310
 
311
/** @defgroup UART_LIN_Break_Detection_Length  UART LIN Break Detection Length
312
  * @{
28 mjames 313
  */
314
#define UART_LINBREAKDETECTLENGTH_10B      0x00000000U
2 mjames 315
#define UART_LINBREAKDETECTLENGTH_11B      ((uint32_t)USART_CR2_LBDL)
316
/**
317
  * @}
318
  */
319
 
28 mjames 320
/** @defgroup UART_WakeUp_functions  UART Wakeup Functions
2 mjames 321
  * @{
322
  */
28 mjames 323
#define UART_WAKEUPMETHOD_IDLELINE                0x00000000U
2 mjames 324
#define UART_WAKEUPMETHOD_ADDRESSMARK             ((uint32_t)USART_CR1_WAKE)
325
/**
326
  * @}
327
  */
328
 
329
/** @defgroup UART_Flags   UART FLags
330
  *        Elements values convention: 0xXXXX
331
  *           - 0xXXXX  : Flag mask in the SR register
332
  * @{
333
  */
334
#define UART_FLAG_CTS                       ((uint32_t)USART_SR_CTS)
335
#define UART_FLAG_LBD                       ((uint32_t)USART_SR_LBD)
336
#define UART_FLAG_TXE                       ((uint32_t)USART_SR_TXE)
337
#define UART_FLAG_TC                        ((uint32_t)USART_SR_TC)
338
#define UART_FLAG_RXNE                      ((uint32_t)USART_SR_RXNE)
339
#define UART_FLAG_IDLE                      ((uint32_t)USART_SR_IDLE)
340
#define UART_FLAG_ORE                       ((uint32_t)USART_SR_ORE)
341
#define UART_FLAG_NE                        ((uint32_t)USART_SR_NE)
342
#define UART_FLAG_FE                        ((uint32_t)USART_SR_FE)
343
#define UART_FLAG_PE                        ((uint32_t)USART_SR_PE)
344
/**
345
  * @}
346
  */
347
 
348
/** @defgroup UART_Interrupt_definition  UART Interrupt Definitions
349
  *        Elements values convention: 0xY000XXXX
350
  *           - XXXX  : Interrupt mask (16 bits) in the Y register
351
  *           - Y  : Interrupt source register (2bits)
28 mjames 352
  *                   - 0001: CR1 register
353
  *                   - 0010: CR2 register
354
  *                   - 0011: CR3 register
2 mjames 355
  * @{
28 mjames 356
  */
2 mjames 357
 
28 mjames 358
#define UART_IT_PE                       ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_PEIE))
359
#define UART_IT_TXE                      ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TXEIE))
360
#define UART_IT_TC                       ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TCIE))
361
#define UART_IT_RXNE                     ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_RXNEIE))
362
#define UART_IT_IDLE                     ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_IDLEIE))
2 mjames 363
 
28 mjames 364
#define UART_IT_LBD                      ((uint32_t)(UART_CR2_REG_INDEX << 28U | USART_CR2_LBDIE))
2 mjames 365
 
28 mjames 366
#define UART_IT_CTS                      ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_CTSIE))
367
#define UART_IT_ERR                      ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_EIE))
2 mjames 368
/**
369
  * @}
370
  */
371
 
372
/**
373
  * @}
374
  */
375
 
376
/* Exported macro ------------------------------------------------------------*/
377
/** @defgroup UART_Exported_Macros UART Exported Macros
378
  * @{
379
  */
380
 
28 mjames 381
/** @brief Reset UART handle gstate & RxState
382
  * @param  __HANDLE__ specifies the UART Handle.
383
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 384
  *         (USART,UART availability and x,y values depending on device).
385
  * @retval None
386
  */
28 mjames 387
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
388
#define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__)  do{                                                   \
389
                                                       (__HANDLE__)->gState = HAL_UART_STATE_RESET;      \
390
                                                       (__HANDLE__)->RxState = HAL_UART_STATE_RESET;     \
391
                                                       (__HANDLE__)->MspInitCallback = NULL;             \
392
                                                       (__HANDLE__)->MspDeInitCallback = NULL;           \
393
                                                     } while(0U)
394
#else
395
#define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__)  do{                                                   \
396
                                                       (__HANDLE__)->gState = HAL_UART_STATE_RESET;      \
397
                                                       (__HANDLE__)->RxState = HAL_UART_STATE_RESET;     \
398
                                                     } while(0U)
399
#endif /*USE_HAL_UART_REGISTER_CALLBACKS */
2 mjames 400
 
28 mjames 401
/** @brief  Flushes the UART DR register
402
  * @param  __HANDLE__ specifies the UART Handle.
403
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 404
  *         (USART,UART availability and x,y values depending on device).
405
  */
406
#define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR)
407
 
28 mjames 408
/** @brief  Checks whether the specified UART flag is set or not.
409
  * @param  __HANDLE__ specifies the UART Handle.
410
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 411
  *         (USART,UART availability and x,y values depending on device).
28 mjames 412
  * @param  __FLAG__ specifies the flag to check.
2 mjames 413
  *        This parameter can be one of the following values:
414
  *            @arg UART_FLAG_CTS:  CTS Change flag (not available for UART4 and UART5)
415
  *            @arg UART_FLAG_LBD:  LIN Break detection flag
416
  *            @arg UART_FLAG_TXE:  Transmit data register empty flag
417
  *            @arg UART_FLAG_TC:   Transmission Complete flag
418
  *            @arg UART_FLAG_RXNE: Receive data register not empty flag
419
  *            @arg UART_FLAG_IDLE: Idle Line detection flag
28 mjames 420
  *            @arg UART_FLAG_ORE:  Overrun Error flag
2 mjames 421
  *            @arg UART_FLAG_NE:   Noise Error flag
422
  *            @arg UART_FLAG_FE:   Framing Error flag
423
  *            @arg UART_FLAG_PE:   Parity Error flag
424
  * @retval The new state of __FLAG__ (TRUE or FALSE).
425
  */
28 mjames 426
#define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
2 mjames 427
 
28 mjames 428
/** @brief  Clears the specified UART pending flag.
429
  * @param  __HANDLE__ specifies the UART Handle.
430
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 431
  *         (USART,UART availability and x,y values depending on device).
28 mjames 432
  * @param  __FLAG__ specifies the flag to check.
2 mjames 433
  *          This parameter can be any combination of the following values:
434
  *            @arg UART_FLAG_CTS:  CTS Change flag (not available for UART4 and UART5).
435
  *            @arg UART_FLAG_LBD:  LIN Break detection flag.
436
  *            @arg UART_FLAG_TC:   Transmission Complete flag.
437
  *            @arg UART_FLAG_RXNE: Receive data register not empty flag.
28 mjames 438
  *
439
  * @note   PE (Parity error), FE (Framing error), NE (Noise error), ORE (Overrun
440
  *          error) and IDLE (Idle line detected) flags are cleared by software
2 mjames 441
  *          sequence: a read operation to USART_SR register followed by a read
442
  *          operation to USART_DR register.
443
  * @note   RXNE flag can be also cleared by a read to the USART_DR register.
28 mjames 444
  * @note   TC flag can be also cleared by software sequence: a read operation to
2 mjames 445
  *          USART_SR register followed by a write operation to USART_DR register.
446
  * @note   TXE flag is cleared only by a write to the USART_DR register.
28 mjames 447
  *
2 mjames 448
  * @retval None
449
  */
450
#define __HAL_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))
451
 
28 mjames 452
/** @brief  Clears the UART PE pending flag.
453
  * @param  __HANDLE__ specifies the UART Handle.
454
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 455
  *         (USART,UART availability and x,y values depending on device).
456
  * @retval None
457
  */
28 mjames 458
#define __HAL_UART_CLEAR_PEFLAG(__HANDLE__)     \
459
  do{                                           \
460
    __IO uint32_t tmpreg = 0x00U;               \
461
    tmpreg = (__HANDLE__)->Instance->SR;        \
462
    tmpreg = (__HANDLE__)->Instance->DR;        \
463
    UNUSED(tmpreg);                             \
464
  } while(0U)
2 mjames 465
 
28 mjames 466
/** @brief  Clears the UART FE pending flag.
467
  * @param  __HANDLE__ specifies the UART Handle.
468
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 469
  *         (USART,UART availability and x,y values depending on device).
470
  * @retval None
471
  */
472
#define __HAL_UART_CLEAR_FEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
473
 
28 mjames 474
/** @brief  Clears the UART NE pending flag.
475
  * @param  __HANDLE__ specifies the UART Handle.
476
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 477
  *         (USART,UART availability and x,y values depending on device).
478
  * @retval None
479
  */
480
#define __HAL_UART_CLEAR_NEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
481
 
28 mjames 482
/** @brief  Clears the UART ORE pending flag.
483
  * @param  __HANDLE__ specifies the UART Handle.
484
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 485
  *         (USART,UART availability and x,y values depending on device).
486
  * @retval None
487
  */
488
#define __HAL_UART_CLEAR_OREFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
489
 
28 mjames 490
/** @brief  Clears the UART IDLE pending flag.
491
  * @param  __HANDLE__ specifies the UART Handle.
492
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 493
  *         (USART,UART availability and x,y values depending on device).
494
  * @retval None
495
  */
496
#define __HAL_UART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
28 mjames 497
 
2 mjames 498
/** @brief  Enable the specified UART interrupt.
28 mjames 499
  * @param  __HANDLE__ specifies the UART Handle.
500
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 501
  *         (USART,UART availability and x,y values depending on device).
28 mjames 502
  * @param  __INTERRUPT__ specifies the UART interrupt source to enable.
2 mjames 503
  *          This parameter can be one of the following values:
504
  *            @arg UART_IT_CTS:  CTS change interrupt
505
  *            @arg UART_IT_LBD:  LIN Break detection interrupt
506
  *            @arg UART_IT_TXE:  Transmit Data Register empty interrupt
507
  *            @arg UART_IT_TC:   Transmission complete interrupt
508
  *            @arg UART_IT_RXNE: Receive Data register not empty interrupt
509
  *            @arg UART_IT_IDLE: Idle line detection interrupt
510
  *            @arg UART_IT_PE:   Parity Error interrupt
511
  *            @arg UART_IT_ERR:  Error interrupt(Frame error, noise error, overrun error)
512
  * @retval None
513
  */
28 mjames 514
#define __HAL_UART_ENABLE_IT(__HANDLE__, __INTERRUPT__)   ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & UART_IT_MASK)): \
515
                                                           (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & UART_IT_MASK)): \
2 mjames 516
                                                           ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & UART_IT_MASK)))
517
 
518
/** @brief  Disable the specified UART interrupt.
28 mjames 519
  * @param  __HANDLE__ specifies the UART Handle.
520
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 521
  *         (USART,UART availability and x,y values depending on device).
28 mjames 522
  * @param  __INTERRUPT__ specifies the UART interrupt source to disable.
2 mjames 523
  *          This parameter can be one of the following values:
524
  *            @arg UART_IT_CTS:  CTS change interrupt
525
  *            @arg UART_IT_LBD:  LIN Break detection interrupt
526
  *            @arg UART_IT_TXE:  Transmit Data Register empty interrupt
527
  *            @arg UART_IT_TC:   Transmission complete interrupt
528
  *            @arg UART_IT_RXNE: Receive Data register not empty interrupt
529
  *            @arg UART_IT_IDLE: Idle line detection interrupt
530
  *            @arg UART_IT_PE:   Parity Error interrupt
531
  *            @arg UART_IT_ERR:  Error interrupt(Frame error, noise error, overrun error)
532
  * @retval None
533
  */
28 mjames 534
#define __HAL_UART_DISABLE_IT(__HANDLE__, __INTERRUPT__)  ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & UART_IT_MASK)): \
535
                                                           (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & UART_IT_MASK)): \
2 mjames 536
                                                           ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK)))
28 mjames 537
 
538
/** @brief  Checks whether the specified UART interrupt source is enabled or not.
539
  * @param  __HANDLE__ specifies the UART Handle.
540
  *         UART Handle selects the USARTx or UARTy peripheral
2 mjames 541
  *         (USART,UART availability and x,y values depending on device).
28 mjames 542
  * @param  __IT__ specifies the UART interrupt source to check.
2 mjames 543
  *          This parameter can be one of the following values:
544
  *            @arg UART_IT_CTS: CTS change interrupt (not available for UART4 and UART5)
545
  *            @arg UART_IT_LBD: LIN Break detection interrupt
546
  *            @arg UART_IT_TXE: Transmit Data Register empty interrupt
547
  *            @arg UART_IT_TC:  Transmission complete interrupt
548
  *            @arg UART_IT_RXNE: Receive Data register not empty interrupt
549
  *            @arg UART_IT_IDLE: Idle line detection interrupt
550
  *            @arg UART_IT_ERR: Error interrupt
551
  * @retval The new state of __IT__ (TRUE or FALSE).
552
  */
28 mjames 553
#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)? \
2 mjames 554
                                                      (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & UART_IT_MASK))
555
 
28 mjames 556
/** @brief  Enable CTS flow control
557
  * @note   This macro allows to enable CTS hardware flow control for a given UART instance,
2 mjames 558
  *         without need to call HAL_UART_Init() function.
559
  *         As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
560
  * @note   As macro is expected to be used for modifying CTS Hw flow control feature activation, without need
561
  *         for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
562
  *           - UART instance should have already been initialised (through call of HAL_UART_Init() )
563
  *           - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
28 mjames 564
  *             and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
565
  * @param  __HANDLE__ specifies the UART Handle.
566
  *         The Handle Instance can be any USARTx (supporting the HW Flow control feature).
2 mjames 567
  *         It is used to select the USART peripheral (USART availability and x value depending on device).
568
  * @retval None
569
  */
570
#define __HAL_UART_HWCONTROL_CTS_ENABLE(__HANDLE__)        \
571
  do{                                                      \
572
    SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE);  \
573
    (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_CTSE;        \
28 mjames 574
  } while(0U)
2 mjames 575
 
28 mjames 576
/** @brief  Disable CTS flow control
577
  * @note   This macro allows to disable CTS hardware flow control for a given UART instance,
2 mjames 578
  *         without need to call HAL_UART_Init() function.
579
  *         As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
580
  * @note   As macro is expected to be used for modifying CTS Hw flow control feature activation, without need
581
  *         for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
582
  *           - UART instance should have already been initialised (through call of HAL_UART_Init() )
583
  *           - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
28 mjames 584
  *             and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
585
  * @param  __HANDLE__ specifies the UART Handle.
586
  *         The Handle Instance can be any USARTx (supporting the HW Flow control feature).
2 mjames 587
  *         It is used to select the USART peripheral (USART availability and x value depending on device).
588
  * @retval None
589
  */
590
#define __HAL_UART_HWCONTROL_CTS_DISABLE(__HANDLE__)        \
591
  do{                                                       \
592
    CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \
593
    (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_CTSE);      \
28 mjames 594
  } while(0U)
2 mjames 595
 
28 mjames 596
/** @brief  Enable RTS flow control
597
  *         This macro allows to enable RTS hardware flow control for a given UART instance,
2 mjames 598
  *         without need to call HAL_UART_Init() function.
599
  *         As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
600
  * @note   As macro is expected to be used for modifying RTS Hw flow control feature activation, without need
601
  *         for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
602
  *           - UART instance should have already been initialised (through call of HAL_UART_Init() )
603
  *           - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
28 mjames 604
  *             and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
605
  * @param  __HANDLE__ specifies the UART Handle.
606
  *         The Handle Instance can be any USARTx (supporting the HW Flow control feature).
2 mjames 607
  *         It is used to select the USART peripheral (USART availability and x value depending on device).
608
  * @retval None
609
  */
610
#define __HAL_UART_HWCONTROL_RTS_ENABLE(__HANDLE__)       \
611
  do{                                                     \
612
    SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE); \
613
    (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_RTSE;       \
28 mjames 614
  } while(0U)
2 mjames 615
 
28 mjames 616
/** @brief  Disable RTS flow control
617
  *         This macro allows to disable RTS hardware flow control for a given UART instance,
2 mjames 618
  *         without need to call HAL_UART_Init() function.
619
  *         As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
620
  * @note   As macro is expected to be used for modifying RTS Hw flow control feature activation, without need
621
  *         for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
622
  *           - UART instance should have already been initialised (through call of HAL_UART_Init() )
623
  *           - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
28 mjames 624
  *             and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
625
  * @param  __HANDLE__ specifies the UART Handle.
626
  *         The Handle Instance can be any USARTx (supporting the HW Flow control feature).
2 mjames 627
  *         It is used to select the USART peripheral (USART availability and x value depending on device).
628
  * @retval None
629
  */
630
#define __HAL_UART_HWCONTROL_RTS_DISABLE(__HANDLE__)       \
631
  do{                                                      \
632
    CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE);\
633
    (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_RTSE);     \
28 mjames 634
  } while(0U)
2 mjames 635
 
28 mjames 636
/** @brief  Macro to enable the UART's one bit sample method
637
  * @param  __HANDLE__ specifies the UART Handle.
638
  * @retval None
639
  */
640
#define __HAL_UART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT)
2 mjames 641
 
28 mjames 642
/** @brief  Macro to disable the UART's one bit sample method
643
  * @param  __HANDLE__ specifies the UART Handle.
644
  * @retval None
645
  */
646
#define __HAL_UART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_ONEBIT))
647
 
2 mjames 648
/** @brief  Enable UART
28 mjames 649
  * @param  __HANDLE__ specifies the UART Handle.
2 mjames 650
  * @retval None
28 mjames 651
  */
2 mjames 652
#define __HAL_UART_ENABLE(__HANDLE__)               ((__HANDLE__)->Instance->CR1 |=  USART_CR1_UE)
653
 
654
/** @brief  Disable UART
28 mjames 655
  * @param  __HANDLE__ specifies the UART Handle.
2 mjames 656
  * @retval None
657
  */
658
#define __HAL_UART_DISABLE(__HANDLE__)              ((__HANDLE__)->Instance->CR1 &=  ~USART_CR1_UE)
659
/**
660
  * @}
661
  */
662
 
28 mjames 663
/* Exported functions --------------------------------------------------------*/
664
/** @addtogroup UART_Exported_Functions
2 mjames 665
  * @{
666
  */
667
 
28 mjames 668
/** @addtogroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
2 mjames 669
  * @{
670
  */
671
 
28 mjames 672
/* Initialization/de-initialization functions  **********************************/
2 mjames 673
HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart);
674
HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart);
675
HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength);
676
HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod);
28 mjames 677
HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart);
2 mjames 678
void HAL_UART_MspInit(UART_HandleTypeDef *huart);
679
void HAL_UART_MspDeInit(UART_HandleTypeDef *huart);
680
 
28 mjames 681
/* Callbacks Register/UnRegister functions  ***********************************/
682
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
683
HAL_StatusTypeDef HAL_UART_RegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID, pUART_CallbackTypeDef pCallback);
684
HAL_StatusTypeDef HAL_UART_UnRegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID);
685
#endif /* USE_HAL_UART_REGISTER_CALLBACKS */
686
 
2 mjames 687
/**
688
  * @}
689
  */
690
 
28 mjames 691
/** @addtogroup UART_Exported_Functions_Group2 IO operation functions
2 mjames 692
  * @{
693
  */
694
 
28 mjames 695
/* IO operation functions *******************************************************/
2 mjames 696
HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);
697
HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);
698
HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
699
HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
700
HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
701
HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
702
HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart);
703
HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart);
704
HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart);
28 mjames 705
/* Transfer Abort functions */
706
HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart);
707
HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart);
708
HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart);
709
HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart);
710
HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart);
711
HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart);
712
 
2 mjames 713
void HAL_UART_IRQHandler(UART_HandleTypeDef *huart);
714
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart);
715
void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart);
716
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart);
717
void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart);
718
void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart);
28 mjames 719
void HAL_UART_AbortCpltCallback(UART_HandleTypeDef *huart);
720
void HAL_UART_AbortTransmitCpltCallback(UART_HandleTypeDef *huart);
721
void HAL_UART_AbortReceiveCpltCallback(UART_HandleTypeDef *huart);
2 mjames 722
 
723
/**
724
  * @}
725
  */
726
 
28 mjames 727
/** @addtogroup UART_Exported_Functions_Group3
2 mjames 728
  * @{
729
  */
730
/* Peripheral Control functions  ************************************************/
731
HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart);
732
HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart);
733
HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart);
734
HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart);
735
HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart);
736
/**
737
  * @}
738
  */
739
 
28 mjames 740
/** @addtogroup UART_Exported_Functions_Group4
2 mjames 741
  * @{
742
  */
28 mjames 743
/* Peripheral State functions  **************************************************/
2 mjames 744
HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart);
745
uint32_t              HAL_UART_GetError(UART_HandleTypeDef *huart);
28 mjames 746
/**
747
  * @}
748
  */
2 mjames 749
 
750
/**
751
  * @}
752
  */
28 mjames 753
/* Private types -------------------------------------------------------------*/
754
/* Private variables ---------------------------------------------------------*/
755
/* Private constants ---------------------------------------------------------*/
756
/** @defgroup UART_Private_Constants UART Private Constants
757
  * @{
758
  */
759
/** @brief UART interruptions flag mask
760
  *
761
  */
762
#define UART_IT_MASK                     0x0000FFFFU
2 mjames 763
 
28 mjames 764
#define UART_CR1_REG_INDEX               1U
765
#define UART_CR2_REG_INDEX               2U
766
#define UART_CR3_REG_INDEX               3U
2 mjames 767
/**
768
  * @}
769
  */
770
 
28 mjames 771
/* Private macros ------------------------------------------------------------*/
772
/** @defgroup UART_Private_Macros UART Private Macros
773
  * @{
774
  */
775
#define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) || \
776
                                     ((LENGTH) == UART_WORDLENGTH_9B))
777
#define IS_UART_LIN_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B))
778
#define IS_UART_STOPBITS(STOPBITS) (((STOPBITS) == UART_STOPBITS_1) || \
779
                                    ((STOPBITS) == UART_STOPBITS_2))
780
#define IS_UART_PARITY(PARITY) (((PARITY) == UART_PARITY_NONE) || \
781
                                ((PARITY) == UART_PARITY_EVEN) || \
782
                                ((PARITY) == UART_PARITY_ODD))
783
#define IS_UART_HARDWARE_FLOW_CONTROL(CONTROL)\
784
                              (((CONTROL) == UART_HWCONTROL_NONE) || \
785
                               ((CONTROL) == UART_HWCONTROL_RTS) || \
786
                               ((CONTROL) == UART_HWCONTROL_CTS) || \
787
                               ((CONTROL) == UART_HWCONTROL_RTS_CTS))
788
#define IS_UART_MODE(MODE) ((((MODE) & 0x0000FFF3U) == 0x00U) && ((MODE) != 0x00U))
789
#define IS_UART_STATE(STATE) (((STATE) == UART_STATE_DISABLE) || \
790
                              ((STATE) == UART_STATE_ENABLE))
791
#define IS_UART_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16) || \
792
                                        ((SAMPLING) == UART_OVERSAMPLING_8))
793
#define IS_UART_LIN_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16))
794
#define IS_UART_LIN_BREAK_DETECT_LENGTH(LENGTH) (((LENGTH) == UART_LINBREAKDETECTLENGTH_10B) || \
795
                                                 ((LENGTH) == UART_LINBREAKDETECTLENGTH_11B))
796
#define IS_UART_WAKEUPMETHOD(WAKEUP) (((WAKEUP) == UART_WAKEUPMETHOD_IDLELINE) || \
797
                                      ((WAKEUP) == UART_WAKEUPMETHOD_ADDRESSMARK))
798
#define IS_UART_BAUDRATE(BAUDRATE) ((BAUDRATE) <= 4000000U)
799
#define IS_UART_ADDRESS(ADDRESS) ((ADDRESS) <= 0x0FU)
800
 
801
#define UART_DIV_SAMPLING16(_PCLK_, _BAUD_)            (((_PCLK_)*25U)/(4U*(_BAUD_)))
802
#define UART_DIVMANT_SAMPLING16(_PCLK_, _BAUD_)        (UART_DIV_SAMPLING16((_PCLK_), (_BAUD_))/100U)
803
#define UART_DIVFRAQ_SAMPLING16(_PCLK_, _BAUD_)        ((((UART_DIV_SAMPLING16((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) * 100U)) * 16U) + 50U) / 100U)
804
/* UART BRR = mantissa + overflow + fraction
805
            = (UART DIVMANT << 4) + (UART DIVFRAQ & 0xF0) + (UART DIVFRAQ & 0x0FU) */
806
#define UART_BRR_SAMPLING16(_PCLK_, _BAUD_)            (((UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) << 4U) + \
807
                                                        (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0xF0U)) + \
808
                                                        (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0x0FU))
809
 
810
#define UART_DIV_SAMPLING8(_PCLK_, _BAUD_)             (((_PCLK_)*25U)/(2U*(_BAUD_)))
811
#define UART_DIVMANT_SAMPLING8(_PCLK_, _BAUD_)         (UART_DIV_SAMPLING8((_PCLK_), (_BAUD_))/100U)
812
#define UART_DIVFRAQ_SAMPLING8(_PCLK_, _BAUD_)         ((((UART_DIV_SAMPLING8((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) * 100U)) * 8U) + 50U) / 100U)
813
/* UART BRR = mantissa + overflow + fraction
814
            = (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07U) */
815
#define UART_BRR_SAMPLING8(_PCLK_, _BAUD_)             (((UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) << 4U) + \
816
                                                        ((UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0xF8U) << 1U)) + \
817
                                                        (UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0x07U))
818
 
2 mjames 819
/**
820
  * @}
28 mjames 821
  */
2 mjames 822
 
28 mjames 823
/* Private functions ---------------------------------------------------------*/
824
/** @defgroup UART_Private_Functions UART Private Functions
825
  * @{
826
  */
827
 
2 mjames 828
/**
829
  * @}
830
  */
831
 
28 mjames 832
/**
833
  * @}
834
  */
835
 
836
/**
837
  * @}
838
  */
839
 
2 mjames 840
#ifdef __cplusplus
841
}
842
#endif
843
 
844
#endif /* __STM32L1xx_HAL_UART_H */
845
 
846
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/