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stm32l1xx_hal_uart.h 41KB

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  1. /**
  2. ******************************************************************************
  3. * @file stm32l1xx_hal_uart.h
  4. * @author MCD Application Team
  5. * @brief Header file of UART HAL module.
  6. ******************************************************************************
  7. * @attention
  8. *
  9. * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  10. * All rights reserved.</center></h2>
  11. *
  12. * This software component is licensed by ST under BSD 3-Clause license,
  13. * the "License"; You may not use this file except in compliance with the
  14. * License. You may obtain a copy of the License at:
  15. * opensource.org/licenses/BSD-3-Clause
  16. *
  17. ******************************************************************************
  18. */
  19. /* Define to prevent recursive inclusion -------------------------------------*/
  20. #ifndef __STM32L1xx_HAL_UART_H
  21. #define __STM32L1xx_HAL_UART_H
  22. #ifdef __cplusplus
  23. extern "C" {
  24. #endif
  25. /* Includes ------------------------------------------------------------------*/
  26. #include "stm32l1xx_hal_def.h"
  27. /** @addtogroup STM32L1xx_HAL_Driver
  28. * @{
  29. */
  30. /** @addtogroup UART
  31. * @{
  32. */
  33. /* Exported types ------------------------------------------------------------*/
  34. /** @defgroup UART_Exported_Types UART Exported Types
  35. * @{
  36. */
  37. /**
  38. * @brief UART Init Structure definition
  39. */
  40. typedef struct
  41. {
  42. uint32_t BaudRate; /*!< This member configures the UART communication baud rate.
  43. The baud rate is computed using the following formula:
  44. - IntegerDivider = ((PCLKx) / (8 * (OVR8+1) * (huart->Init.BaudRate)))
  45. - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8 * (OVR8+1)) + 0.5
  46. Where OVR8 is the "oversampling by 8 mode" configuration bit in the CR1 register. */
  47. uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received in a frame.
  48. This parameter can be a value of @ref UART_Word_Length */
  49. uint32_t StopBits; /*!< Specifies the number of stop bits transmitted.
  50. This parameter can be a value of @ref UART_Stop_Bits */
  51. uint32_t Parity; /*!< Specifies the parity mode.
  52. This parameter can be a value of @ref UART_Parity
  53. @note When parity is enabled, the computed parity is inserted
  54. at the MSB position of the transmitted data (9th bit when
  55. the word length is set to 9 data bits; 8th bit when the
  56. word length is set to 8 data bits). */
  57. uint32_t Mode; /*!< Specifies whether the Receive or Transmit mode is enabled or disabled.
  58. This parameter can be a value of @ref UART_Mode */
  59. uint32_t HwFlowCtl; /*!< Specifies whether the hardware flow control mode is enabled or disabled.
  60. This parameter can be a value of @ref UART_Hardware_Flow_Control */
  61. uint32_t OverSampling; /*!< Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher speed (up to fPCLK/8).
  62. This parameter can be a value of @ref UART_Over_Sampling */
  63. } UART_InitTypeDef;
  64. /**
  65. * @brief HAL UART State structures definition
  66. * @note HAL UART State value is a combination of 2 different substates: gState and RxState.
  67. * - gState contains UART state information related to global Handle management
  68. * and also information related to Tx operations.
  69. * gState value coding follow below described bitmap :
  70. * b7-b6 Error information
  71. * 00 : No Error
  72. * 01 : (Not Used)
  73. * 10 : Timeout
  74. * 11 : Error
  75. * b5 Peripheral initialization status
  76. * 0 : Reset (Peripheral not initialized)
  77. * 1 : Init done (Peripheral not initialized. HAL UART Init function already called)
  78. * b4-b3 (not used)
  79. * xx : Should be set to 00
  80. * b2 Intrinsic process state
  81. * 0 : Ready
  82. * 1 : Busy (Peripheral busy with some configuration or internal operations)
  83. * b1 (not used)
  84. * x : Should be set to 0
  85. * b0 Tx state
  86. * 0 : Ready (no Tx operation ongoing)
  87. * 1 : Busy (Tx operation ongoing)
  88. * - RxState contains information related to Rx operations.
  89. * RxState value coding follow below described bitmap :
  90. * b7-b6 (not used)
  91. * xx : Should be set to 00
  92. * b5 Peripheral initialization status
  93. * 0 : Reset (Peripheral not initialized)
  94. * 1 : Init done (Peripheral not initialized)
  95. * b4-b2 (not used)
  96. * xxx : Should be set to 000
  97. * b1 Rx state
  98. * 0 : Ready (no Rx operation ongoing)
  99. * 1 : Busy (Rx operation ongoing)
  100. * b0 (not used)
  101. * x : Should be set to 0.
  102. */
  103. typedef enum
  104. {
  105. HAL_UART_STATE_RESET = 0x00U, /*!< Peripheral is not yet Initialized
  106. Value is allowed for gState and RxState */
  107. HAL_UART_STATE_READY = 0x20U, /*!< Peripheral Initialized and ready for use
  108. Value is allowed for gState and RxState */
  109. HAL_UART_STATE_BUSY = 0x24U, /*!< an internal process is ongoing
  110. Value is allowed for gState only */
  111. HAL_UART_STATE_BUSY_TX = 0x21U, /*!< Data Transmission process is ongoing
  112. Value is allowed for gState only */
  113. HAL_UART_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing
  114. Value is allowed for RxState only */
  115. HAL_UART_STATE_BUSY_TX_RX = 0x23U, /*!< Data Transmission and Reception process is ongoing
  116. Not to be used for neither gState nor RxState.
  117. Value is result of combination (Or) between gState and RxState values */
  118. HAL_UART_STATE_TIMEOUT = 0xA0U, /*!< Timeout state
  119. Value is allowed for gState only */
  120. HAL_UART_STATE_ERROR = 0xE0U /*!< Error
  121. Value is allowed for gState only */
  122. } HAL_UART_StateTypeDef;
  123. /**
  124. * @brief UART handle Structure definition
  125. */
  126. typedef struct __UART_HandleTypeDef
  127. {
  128. USART_TypeDef *Instance; /*!< UART registers base address */
  129. UART_InitTypeDef Init; /*!< UART communication parameters */
  130. uint8_t *pTxBuffPtr; /*!< Pointer to UART Tx transfer Buffer */
  131. uint16_t TxXferSize; /*!< UART Tx Transfer size */
  132. __IO uint16_t TxXferCount; /*!< UART Tx Transfer Counter */
  133. uint8_t *pRxBuffPtr; /*!< Pointer to UART Rx transfer Buffer */
  134. uint16_t RxXferSize; /*!< UART Rx Transfer size */
  135. __IO uint16_t RxXferCount; /*!< UART Rx Transfer Counter */
  136. DMA_HandleTypeDef *hdmatx; /*!< UART Tx DMA Handle parameters */
  137. DMA_HandleTypeDef *hdmarx; /*!< UART Rx DMA Handle parameters */
  138. HAL_LockTypeDef Lock; /*!< Locking object */
  139. __IO HAL_UART_StateTypeDef gState; /*!< UART state information related to global Handle management
  140. and also related to Tx operations.
  141. This parameter can be a value of @ref HAL_UART_StateTypeDef */
  142. __IO HAL_UART_StateTypeDef RxState; /*!< UART state information related to Rx operations.
  143. This parameter can be a value of @ref HAL_UART_StateTypeDef */
  144. __IO uint32_t ErrorCode; /*!< UART Error code */
  145. #if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
  146. void (* TxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Half Complete Callback */
  147. void (* TxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Tx Complete Callback */
  148. void (* RxHalfCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Half Complete Callback */
  149. void (* RxCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Rx Complete Callback */
  150. void (* ErrorCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Error Callback */
  151. void (* AbortCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Complete Callback */
  152. void (* AbortTransmitCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Transmit Complete Callback */
  153. void (* AbortReceiveCpltCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Abort Receive Complete Callback */
  154. void (* WakeupCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Wakeup Callback */
  155. void (* MspInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp Init callback */
  156. void (* MspDeInitCallback)(struct __UART_HandleTypeDef *huart); /*!< UART Msp DeInit callback */
  157. #endif /* USE_HAL_UART_REGISTER_CALLBACKS */
  158. } UART_HandleTypeDef;
  159. #if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
  160. /**
  161. * @brief HAL UART Callback ID enumeration definition
  162. */
  163. typedef enum
  164. {
  165. HAL_UART_TX_HALFCOMPLETE_CB_ID = 0x00U, /*!< UART Tx Half Complete Callback ID */
  166. HAL_UART_TX_COMPLETE_CB_ID = 0x01U, /*!< UART Tx Complete Callback ID */
  167. HAL_UART_RX_HALFCOMPLETE_CB_ID = 0x02U, /*!< UART Rx Half Complete Callback ID */
  168. HAL_UART_RX_COMPLETE_CB_ID = 0x03U, /*!< UART Rx Complete Callback ID */
  169. HAL_UART_ERROR_CB_ID = 0x04U, /*!< UART Error Callback ID */
  170. HAL_UART_ABORT_COMPLETE_CB_ID = 0x05U, /*!< UART Abort Complete Callback ID */
  171. HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID = 0x06U, /*!< UART Abort Transmit Complete Callback ID */
  172. HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID = 0x07U, /*!< UART Abort Receive Complete Callback ID */
  173. HAL_UART_WAKEUP_CB_ID = 0x08U, /*!< UART Wakeup Callback ID */
  174. HAL_UART_MSPINIT_CB_ID = 0x0BU, /*!< UART MspInit callback ID */
  175. HAL_UART_MSPDEINIT_CB_ID = 0x0CU /*!< UART MspDeInit callback ID */
  176. } HAL_UART_CallbackIDTypeDef;
  177. /**
  178. * @brief HAL UART Callback pointer definition
  179. */
  180. typedef void (*pUART_CallbackTypeDef)(UART_HandleTypeDef *huart); /*!< pointer to an UART callback function */
  181. #endif /* USE_HAL_UART_REGISTER_CALLBACKS */
  182. /**
  183. * @}
  184. */
  185. /* Exported constants --------------------------------------------------------*/
  186. /** @defgroup UART_Exported_Constants UART Exported Constants
  187. * @{
  188. */
  189. /** @defgroup UART_Error_Code UART Error Code
  190. * @{
  191. */
  192. #define HAL_UART_ERROR_NONE 0x00000000U /*!< No error */
  193. #define HAL_UART_ERROR_PE 0x00000001U /*!< Parity error */
  194. #define HAL_UART_ERROR_NE 0x00000002U /*!< Noise error */
  195. #define HAL_UART_ERROR_FE 0x00000004U /*!< Frame error */
  196. #define HAL_UART_ERROR_ORE 0x00000008U /*!< Overrun error */
  197. #define HAL_UART_ERROR_DMA 0x00000010U /*!< DMA transfer error */
  198. #if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
  199. #define HAL_UART_ERROR_INVALID_CALLBACK 0x00000020U /*!< Invalid Callback error */
  200. #endif /* USE_HAL_UART_REGISTER_CALLBACKS */
  201. /**
  202. * @}
  203. */
  204. /** @defgroup UART_Word_Length UART Word Length
  205. * @{
  206. */
  207. #define UART_WORDLENGTH_8B 0x00000000U
  208. #define UART_WORDLENGTH_9B ((uint32_t)USART_CR1_M)
  209. /**
  210. * @}
  211. */
  212. /** @defgroup UART_Stop_Bits UART Number of Stop Bits
  213. * @{
  214. */
  215. #define UART_STOPBITS_1 0x00000000U
  216. #define UART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1)
  217. /**
  218. * @}
  219. */
  220. /** @defgroup UART_Parity UART Parity
  221. * @{
  222. */
  223. #define UART_PARITY_NONE 0x00000000U
  224. #define UART_PARITY_EVEN ((uint32_t)USART_CR1_PCE)
  225. #define UART_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS))
  226. /**
  227. * @}
  228. */
  229. /** @defgroup UART_Hardware_Flow_Control UART Hardware Flow Control
  230. * @{
  231. */
  232. #define UART_HWCONTROL_NONE 0x00000000U
  233. #define UART_HWCONTROL_RTS ((uint32_t)USART_CR3_RTSE)
  234. #define UART_HWCONTROL_CTS ((uint32_t)USART_CR3_CTSE)
  235. #define UART_HWCONTROL_RTS_CTS ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE))
  236. /**
  237. * @}
  238. */
  239. /** @defgroup UART_Mode UART Transfer Mode
  240. * @{
  241. */
  242. #define UART_MODE_RX ((uint32_t)USART_CR1_RE)
  243. #define UART_MODE_TX ((uint32_t)USART_CR1_TE)
  244. #define UART_MODE_TX_RX ((uint32_t)(USART_CR1_TE | USART_CR1_RE))
  245. /**
  246. * @}
  247. */
  248. /** @defgroup UART_State UART State
  249. * @{
  250. */
  251. #define UART_STATE_DISABLE 0x00000000U
  252. #define UART_STATE_ENABLE ((uint32_t)USART_CR1_UE)
  253. /**
  254. * @}
  255. */
  256. /** @defgroup UART_Over_Sampling UART Over Sampling
  257. * @{
  258. */
  259. #define UART_OVERSAMPLING_16 0x00000000U
  260. #define UART_OVERSAMPLING_8 ((uint32_t)USART_CR1_OVER8)
  261. /**
  262. * @}
  263. */
  264. /** @defgroup UART_LIN_Break_Detection_Length UART LIN Break Detection Length
  265. * @{
  266. */
  267. #define UART_LINBREAKDETECTLENGTH_10B 0x00000000U
  268. #define UART_LINBREAKDETECTLENGTH_11B ((uint32_t)USART_CR2_LBDL)
  269. /**
  270. * @}
  271. */
  272. /** @defgroup UART_WakeUp_functions UART Wakeup Functions
  273. * @{
  274. */
  275. #define UART_WAKEUPMETHOD_IDLELINE 0x00000000U
  276. #define UART_WAKEUPMETHOD_ADDRESSMARK ((uint32_t)USART_CR1_WAKE)
  277. /**
  278. * @}
  279. */
  280. /** @defgroup UART_Flags UART FLags
  281. * Elements values convention: 0xXXXX
  282. * - 0xXXXX : Flag mask in the SR register
  283. * @{
  284. */
  285. #define UART_FLAG_CTS ((uint32_t)USART_SR_CTS)
  286. #define UART_FLAG_LBD ((uint32_t)USART_SR_LBD)
  287. #define UART_FLAG_TXE ((uint32_t)USART_SR_TXE)
  288. #define UART_FLAG_TC ((uint32_t)USART_SR_TC)
  289. #define UART_FLAG_RXNE ((uint32_t)USART_SR_RXNE)
  290. #define UART_FLAG_IDLE ((uint32_t)USART_SR_IDLE)
  291. #define UART_FLAG_ORE ((uint32_t)USART_SR_ORE)
  292. #define UART_FLAG_NE ((uint32_t)USART_SR_NE)
  293. #define UART_FLAG_FE ((uint32_t)USART_SR_FE)
  294. #define UART_FLAG_PE ((uint32_t)USART_SR_PE)
  295. /**
  296. * @}
  297. */
  298. /** @defgroup UART_Interrupt_definition UART Interrupt Definitions
  299. * Elements values convention: 0xY000XXXX
  300. * - XXXX : Interrupt mask (16 bits) in the Y register
  301. * - Y : Interrupt source register (2bits)
  302. * - 0001: CR1 register
  303. * - 0010: CR2 register
  304. * - 0011: CR3 register
  305. * @{
  306. */
  307. #define UART_IT_PE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_PEIE))
  308. #define UART_IT_TXE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TXEIE))
  309. #define UART_IT_TC ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TCIE))
  310. #define UART_IT_RXNE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_RXNEIE))
  311. #define UART_IT_IDLE ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_IDLEIE))
  312. #define UART_IT_LBD ((uint32_t)(UART_CR2_REG_INDEX << 28U | USART_CR2_LBDIE))
  313. #define UART_IT_CTS ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_CTSIE))
  314. #define UART_IT_ERR ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_EIE))
  315. /**
  316. * @}
  317. */
  318. /**
  319. * @}
  320. */
  321. /* Exported macro ------------------------------------------------------------*/
  322. /** @defgroup UART_Exported_Macros UART Exported Macros
  323. * @{
  324. */
  325. /** @brief Reset UART handle gstate & RxState
  326. * @param __HANDLE__ specifies the UART Handle.
  327. * UART Handle selects the USARTx or UARTy peripheral
  328. * (USART,UART availability and x,y values depending on device).
  329. * @retval None
  330. */
  331. #if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
  332. #define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \
  333. (__HANDLE__)->gState = HAL_UART_STATE_RESET; \
  334. (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \
  335. (__HANDLE__)->MspInitCallback = NULL; \
  336. (__HANDLE__)->MspDeInitCallback = NULL; \
  337. } while(0U)
  338. #else
  339. #define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) do{ \
  340. (__HANDLE__)->gState = HAL_UART_STATE_RESET; \
  341. (__HANDLE__)->RxState = HAL_UART_STATE_RESET; \
  342. } while(0U)
  343. #endif /*USE_HAL_UART_REGISTER_CALLBACKS */
  344. /** @brief Flushes the UART DR register
  345. * @param __HANDLE__ specifies the UART Handle.
  346. * UART Handle selects the USARTx or UARTy peripheral
  347. * (USART,UART availability and x,y values depending on device).
  348. */
  349. #define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR)
  350. /** @brief Checks whether the specified UART flag is set or not.
  351. * @param __HANDLE__ specifies the UART Handle.
  352. * UART Handle selects the USARTx or UARTy peripheral
  353. * (USART,UART availability and x,y values depending on device).
  354. * @param __FLAG__ specifies the flag to check.
  355. * This parameter can be one of the following values:
  356. * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5)
  357. * @arg UART_FLAG_LBD: LIN Break detection flag
  358. * @arg UART_FLAG_TXE: Transmit data register empty flag
  359. * @arg UART_FLAG_TC: Transmission Complete flag
  360. * @arg UART_FLAG_RXNE: Receive data register not empty flag
  361. * @arg UART_FLAG_IDLE: Idle Line detection flag
  362. * @arg UART_FLAG_ORE: Overrun Error flag
  363. * @arg UART_FLAG_NE: Noise Error flag
  364. * @arg UART_FLAG_FE: Framing Error flag
  365. * @arg UART_FLAG_PE: Parity Error flag
  366. * @retval The new state of __FLAG__ (TRUE or FALSE).
  367. */
  368. #define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
  369. /** @brief Clears the specified UART pending flag.
  370. * @param __HANDLE__ specifies the UART Handle.
  371. * UART Handle selects the USARTx or UARTy peripheral
  372. * (USART,UART availability and x,y values depending on device).
  373. * @param __FLAG__ specifies the flag to check.
  374. * This parameter can be any combination of the following values:
  375. * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5).
  376. * @arg UART_FLAG_LBD: LIN Break detection flag.
  377. * @arg UART_FLAG_TC: Transmission Complete flag.
  378. * @arg UART_FLAG_RXNE: Receive data register not empty flag.
  379. *
  380. * @note PE (Parity error), FE (Framing error), NE (Noise error), ORE (Overrun
  381. * error) and IDLE (Idle line detected) flags are cleared by software
  382. * sequence: a read operation to USART_SR register followed by a read
  383. * operation to USART_DR register.
  384. * @note RXNE flag can be also cleared by a read to the USART_DR register.
  385. * @note TC flag can be also cleared by software sequence: a read operation to
  386. * USART_SR register followed by a write operation to USART_DR register.
  387. * @note TXE flag is cleared only by a write to the USART_DR register.
  388. *
  389. * @retval None
  390. */
  391. #define __HAL_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))
  392. /** @brief Clears the UART PE pending flag.
  393. * @param __HANDLE__ specifies the UART Handle.
  394. * UART Handle selects the USARTx or UARTy peripheral
  395. * (USART,UART availability and x,y values depending on device).
  396. * @retval None
  397. */
  398. #define __HAL_UART_CLEAR_PEFLAG(__HANDLE__) \
  399. do{ \
  400. __IO uint32_t tmpreg = 0x00U; \
  401. tmpreg = (__HANDLE__)->Instance->SR; \
  402. tmpreg = (__HANDLE__)->Instance->DR; \
  403. UNUSED(tmpreg); \
  404. } while(0U)
  405. /** @brief Clears the UART FE pending flag.
  406. * @param __HANDLE__ specifies the UART Handle.
  407. * UART Handle selects the USARTx or UARTy peripheral
  408. * (USART,UART availability and x,y values depending on device).
  409. * @retval None
  410. */
  411. #define __HAL_UART_CLEAR_FEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
  412. /** @brief Clears the UART NE pending flag.
  413. * @param __HANDLE__ specifies the UART Handle.
  414. * UART Handle selects the USARTx or UARTy peripheral
  415. * (USART,UART availability and x,y values depending on device).
  416. * @retval None
  417. */
  418. #define __HAL_UART_CLEAR_NEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
  419. /** @brief Clears the UART ORE pending flag.
  420. * @param __HANDLE__ specifies the UART Handle.
  421. * UART Handle selects the USARTx or UARTy peripheral
  422. * (USART,UART availability and x,y values depending on device).
  423. * @retval None
  424. */
  425. #define __HAL_UART_CLEAR_OREFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
  426. /** @brief Clears the UART IDLE pending flag.
  427. * @param __HANDLE__ specifies the UART Handle.
  428. * UART Handle selects the USARTx or UARTy peripheral
  429. * (USART,UART availability and x,y values depending on device).
  430. * @retval None
  431. */
  432. #define __HAL_UART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
  433. /** @brief Enable the specified UART interrupt.
  434. * @param __HANDLE__ specifies the UART Handle.
  435. * UART Handle selects the USARTx or UARTy peripheral
  436. * (USART,UART availability and x,y values depending on device).
  437. * @param __INTERRUPT__ specifies the UART interrupt source to enable.
  438. * This parameter can be one of the following values:
  439. * @arg UART_IT_CTS: CTS change interrupt
  440. * @arg UART_IT_LBD: LIN Break detection interrupt
  441. * @arg UART_IT_TXE: Transmit Data Register empty interrupt
  442. * @arg UART_IT_TC: Transmission complete interrupt
  443. * @arg UART_IT_RXNE: Receive Data register not empty interrupt
  444. * @arg UART_IT_IDLE: Idle line detection interrupt
  445. * @arg UART_IT_PE: Parity Error interrupt
  446. * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error)
  447. * @retval None
  448. */
  449. #define __HAL_UART_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & UART_IT_MASK)): \
  450. (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & UART_IT_MASK)): \
  451. ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & UART_IT_MASK)))
  452. /** @brief Disable the specified UART interrupt.
  453. * @param __HANDLE__ specifies the UART Handle.
  454. * UART Handle selects the USARTx or UARTy peripheral
  455. * (USART,UART availability and x,y values depending on device).
  456. * @param __INTERRUPT__ specifies the UART interrupt source to disable.
  457. * This parameter can be one of the following values:
  458. * @arg UART_IT_CTS: CTS change interrupt
  459. * @arg UART_IT_LBD: LIN Break detection interrupt
  460. * @arg UART_IT_TXE: Transmit Data Register empty interrupt
  461. * @arg UART_IT_TC: Transmission complete interrupt
  462. * @arg UART_IT_RXNE: Receive Data register not empty interrupt
  463. * @arg UART_IT_IDLE: Idle line detection interrupt
  464. * @arg UART_IT_PE: Parity Error interrupt
  465. * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error)
  466. * @retval None
  467. */
  468. #define __HAL_UART_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28U) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & UART_IT_MASK)): \
  469. (((__INTERRUPT__) >> 28U) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & UART_IT_MASK)): \
  470. ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK)))
  471. /** @brief Checks whether the specified UART interrupt has occurred or not.
  472. * @param __HANDLE__ specifies the UART Handle.
  473. * UART Handle selects the USARTx or UARTy peripheral
  474. * (USART,UART availability and x,y values depending on device).
  475. * @param __IT__ specifies the UART interrupt source to check.
  476. * This parameter can be one of the following values:
  477. * @arg UART_IT_CTS: CTS change interrupt (not available for UART4 and UART5)
  478. * @arg UART_IT_LBD: LIN Break detection interrupt
  479. * @arg UART_IT_TXE: Transmit Data Register empty interrupt
  480. * @arg UART_IT_TC: Transmission complete interrupt
  481. * @arg UART_IT_RXNE: Receive Data register not empty interrupt
  482. * @arg UART_IT_IDLE: Idle line detection interrupt
  483. * @arg UART_IT_ERR: Error interrupt
  484. * @retval The new state of __IT__ (TRUE or FALSE).
  485. */
  486. #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)? \
  487. (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & UART_IT_MASK))
  488. /** @brief Enable CTS flow control
  489. * @note This macro allows to enable CTS hardware flow control for a given UART instance,
  490. * without need to call HAL_UART_Init() function.
  491. * As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
  492. * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need
  493. * for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
  494. * - UART instance should have already been initialised (through call of HAL_UART_Init() )
  495. * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
  496. * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
  497. * @param __HANDLE__ specifies the UART Handle.
  498. * The Handle Instance can be any USARTx (supporting the HW Flow control feature).
  499. * It is used to select the USART peripheral (USART availability and x value depending on device).
  500. * @retval None
  501. */
  502. #define __HAL_UART_HWCONTROL_CTS_ENABLE(__HANDLE__) \
  503. do{ \
  504. SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \
  505. (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_CTSE; \
  506. } while(0U)
  507. /** @brief Disable CTS flow control
  508. * @note This macro allows to disable CTS hardware flow control for a given UART instance,
  509. * without need to call HAL_UART_Init() function.
  510. * As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
  511. * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need
  512. * for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
  513. * - UART instance should have already been initialised (through call of HAL_UART_Init() )
  514. * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
  515. * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
  516. * @param __HANDLE__ specifies the UART Handle.
  517. * The Handle Instance can be any USARTx (supporting the HW Flow control feature).
  518. * It is used to select the USART peripheral (USART availability and x value depending on device).
  519. * @retval None
  520. */
  521. #define __HAL_UART_HWCONTROL_CTS_DISABLE(__HANDLE__) \
  522. do{ \
  523. CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \
  524. (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_CTSE); \
  525. } while(0U)
  526. /** @brief Enable RTS flow control
  527. * This macro allows to enable RTS hardware flow control for a given UART instance,
  528. * without need to call HAL_UART_Init() function.
  529. * As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
  530. * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need
  531. * for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
  532. * - UART instance should have already been initialised (through call of HAL_UART_Init() )
  533. * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
  534. * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
  535. * @param __HANDLE__ specifies the UART Handle.
  536. * The Handle Instance can be any USARTx (supporting the HW Flow control feature).
  537. * It is used to select the USART peripheral (USART availability and x value depending on device).
  538. * @retval None
  539. */
  540. #define __HAL_UART_HWCONTROL_RTS_ENABLE(__HANDLE__) \
  541. do{ \
  542. SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE); \
  543. (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_RTSE; \
  544. } while(0U)
  545. /** @brief Disable RTS flow control
  546. * This macro allows to disable RTS hardware flow control for a given UART instance,
  547. * without need to call HAL_UART_Init() function.
  548. * As involving direct access to UART registers, usage of this macro should be fully endorsed by user.
  549. * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need
  550. * for USART instance Deinit/Init, following conditions for macro call should be fulfilled :
  551. * - UART instance should have already been initialised (through call of HAL_UART_Init() )
  552. * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__))
  553. * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)).
  554. * @param __HANDLE__ specifies the UART Handle.
  555. * The Handle Instance can be any USARTx (supporting the HW Flow control feature).
  556. * It is used to select the USART peripheral (USART availability and x value depending on device).
  557. * @retval None
  558. */
  559. #define __HAL_UART_HWCONTROL_RTS_DISABLE(__HANDLE__) \
  560. do{ \
  561. CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE);\
  562. (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_RTSE); \
  563. } while(0U)
  564. /** @brief Macro to enable the UART's one bit sample method
  565. * @param __HANDLE__ specifies the UART Handle.
  566. * @retval None
  567. */
  568. #define __HAL_UART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT)
  569. /** @brief Macro to disable the UART's one bit sample method
  570. * @param __HANDLE__ specifies the UART Handle.
  571. * @retval None
  572. */
  573. #define __HAL_UART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_ONEBIT))
  574. /** @brief Enable UART
  575. * @param __HANDLE__ specifies the UART Handle.
  576. * @retval None
  577. */
  578. #define __HAL_UART_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 |= USART_CR1_UE)
  579. /** @brief Disable UART
  580. * @param __HANDLE__ specifies the UART Handle.
  581. * @retval None
  582. */
  583. #define __HAL_UART_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE)
  584. /**
  585. * @}
  586. */
  587. /* Exported functions --------------------------------------------------------*/
  588. /** @addtogroup UART_Exported_Functions
  589. * @{
  590. */
  591. /** @addtogroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
  592. * @{
  593. */
  594. /* Initialization/de-initialization functions **********************************/
  595. HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart);
  596. HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart);
  597. HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength);
  598. HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod);
  599. HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart);
  600. void HAL_UART_MspInit(UART_HandleTypeDef *huart);
  601. void HAL_UART_MspDeInit(UART_HandleTypeDef *huart);
  602. /* Callbacks Register/UnRegister functions ***********************************/
  603. #if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
  604. HAL_StatusTypeDef HAL_UART_RegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID, pUART_CallbackTypeDef pCallback);
  605. HAL_StatusTypeDef HAL_UART_UnRegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID);
  606. #endif /* USE_HAL_UART_REGISTER_CALLBACKS */
  607. /**
  608. * @}
  609. */
  610. /** @addtogroup UART_Exported_Functions_Group2 IO operation functions
  611. * @{
  612. */
  613. /* IO operation functions *******************************************************/
  614. HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);
  615. HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);
  616. HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
  617. HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
  618. HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
  619. HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
  620. HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart);
  621. HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart);
  622. HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart);
  623. /* Transfer Abort functions */
  624. HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart);
  625. HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart);
  626. HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart);
  627. HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart);
  628. HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart);
  629. HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart);
  630. void HAL_UART_IRQHandler(UART_HandleTypeDef *huart);
  631. void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart);
  632. void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart);
  633. void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart);
  634. void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart);
  635. void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart);
  636. void HAL_UART_AbortCpltCallback(UART_HandleTypeDef *huart);
  637. void HAL_UART_AbortTransmitCpltCallback(UART_HandleTypeDef *huart);
  638. void HAL_UART_AbortReceiveCpltCallback(UART_HandleTypeDef *huart);
  639. /**
  640. * @}
  641. */
  642. /** @addtogroup UART_Exported_Functions_Group3
  643. * @{
  644. */
  645. /* Peripheral Control functions ************************************************/
  646. HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart);
  647. HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart);
  648. HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart);
  649. HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart);
  650. HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart);
  651. /**
  652. * @}
  653. */
  654. /** @addtogroup UART_Exported_Functions_Group4
  655. * @{
  656. */
  657. /* Peripheral State functions **************************************************/
  658. HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart);
  659. uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart);
  660. /**
  661. * @}
  662. */
  663. /**
  664. * @}
  665. */
  666. /* Private types -------------------------------------------------------------*/
  667. /* Private variables ---------------------------------------------------------*/
  668. /* Private constants ---------------------------------------------------------*/
  669. /** @defgroup UART_Private_Constants UART Private Constants
  670. * @{
  671. */
  672. /** @brief UART interruptions flag mask
  673. *
  674. */
  675. #define UART_IT_MASK 0x0000FFFFU
  676. #define UART_CR1_REG_INDEX 1U
  677. #define UART_CR2_REG_INDEX 2U
  678. #define UART_CR3_REG_INDEX 3U
  679. /**
  680. * @}
  681. */
  682. /* Private macros ------------------------------------------------------------*/
  683. /** @defgroup UART_Private_Macros UART Private Macros
  684. * @{
  685. */
  686. #define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) || \
  687. ((LENGTH) == UART_WORDLENGTH_9B))
  688. #define IS_UART_LIN_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B))
  689. #define IS_UART_STOPBITS(STOPBITS) (((STOPBITS) == UART_STOPBITS_1) || \
  690. ((STOPBITS) == UART_STOPBITS_2))
  691. #define IS_UART_PARITY(PARITY) (((PARITY) == UART_PARITY_NONE) || \
  692. ((PARITY) == UART_PARITY_EVEN) || \
  693. ((PARITY) == UART_PARITY_ODD))
  694. #define IS_UART_HARDWARE_FLOW_CONTROL(CONTROL)\
  695. (((CONTROL) == UART_HWCONTROL_NONE) || \
  696. ((CONTROL) == UART_HWCONTROL_RTS) || \
  697. ((CONTROL) == UART_HWCONTROL_CTS) || \
  698. ((CONTROL) == UART_HWCONTROL_RTS_CTS))
  699. #define IS_UART_MODE(MODE) ((((MODE) & 0x0000FFF3U) == 0x00U) && ((MODE) != 0x00U))
  700. #define IS_UART_STATE(STATE) (((STATE) == UART_STATE_DISABLE) || \
  701. ((STATE) == UART_STATE_ENABLE))
  702. #define IS_UART_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16) || \
  703. ((SAMPLING) == UART_OVERSAMPLING_8))
  704. #define IS_UART_LIN_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16))
  705. #define IS_UART_LIN_BREAK_DETECT_LENGTH(LENGTH) (((LENGTH) == UART_LINBREAKDETECTLENGTH_10B) || \
  706. ((LENGTH) == UART_LINBREAKDETECTLENGTH_11B))
  707. #define IS_UART_WAKEUPMETHOD(WAKEUP) (((WAKEUP) == UART_WAKEUPMETHOD_IDLELINE) || \
  708. ((WAKEUP) == UART_WAKEUPMETHOD_ADDRESSMARK))
  709. #define IS_UART_BAUDRATE(BAUDRATE) ((BAUDRATE) <= 4000000U)
  710. #define IS_UART_ADDRESS(ADDRESS) ((ADDRESS) <= 0x0FU)
  711. #define UART_DIV_SAMPLING16(_PCLK_, _BAUD_) (((_PCLK_)*25U)/(4U*(_BAUD_)))
  712. #define UART_DIVMANT_SAMPLING16(_PCLK_, _BAUD_) (UART_DIV_SAMPLING16((_PCLK_), (_BAUD_))/100U)
  713. #define UART_DIVFRAQ_SAMPLING16(_PCLK_, _BAUD_) (((UART_DIV_SAMPLING16((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) * 100U)) * 16U + 50U) / 100U)
  714. /* UART BRR = mantissa + overflow + fraction
  715. = (UART DIVMANT << 4) + (UART DIVFRAQ & 0xF0) + (UART DIVFRAQ & 0x0FU) */
  716. #define UART_BRR_SAMPLING16(_PCLK_, _BAUD_) (((UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) << 4U) + \
  717. (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0xF0U)) + \
  718. (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0x0FU))
  719. #define UART_DIV_SAMPLING8(_PCLK_, _BAUD_) (((_PCLK_)*25U)/(2U*(_BAUD_)))
  720. #define UART_DIVMANT_SAMPLING8(_PCLK_, _BAUD_) (UART_DIV_SAMPLING8((_PCLK_), (_BAUD_))/100U)
  721. #define UART_DIVFRAQ_SAMPLING8(_PCLK_, _BAUD_) (((UART_DIV_SAMPLING8((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) * 100U)) * 8U + 50U) / 100U)
  722. /* UART BRR = mantissa + overflow + fraction
  723. = (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07U) */
  724. #define UART_BRR_SAMPLING8(_PCLK_, _BAUD_) (((UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) << 4U) + \
  725. ((UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0xF8U) << 1U)) + \
  726. (UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0x07U))
  727. /**
  728. * @}
  729. */
  730. /* Private functions ---------------------------------------------------------*/
  731. /** @defgroup UART_Private_Functions UART Private Functions
  732. * @{
  733. */
  734. /**
  735. * @}
  736. */
  737. /**
  738. * @}
  739. */
  740. /**
  741. * @}
  742. */
  743. #ifdef __cplusplus
  744. }
  745. #endif
  746. #endif /* __STM32L1xx_HAL_UART_H */
  747. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/