WebSVN – DashDisplay – Blame – /branches/Dashboard_L152_210623/Drivers/STM32L1xx_HAL_Driver/Inc/stm32l1xx_hal_uart.h

Rev	Author	Line No.	Line
30	mjames	1	/**
		2	******************************************************************************
		3	* @file stm32l1xx_hal_uart.h
		4	* @author MCD Application Team
50	mjames	5	* @brief Header file of UART HAL module.
30	mjames	6	******************************************************************************
		7	* @attention
		8	*
50	mjames	9	* <h2><center>© Copyright (c) 2016 STMicroelectronics.
		10	* All rights reserved.</center></h2>
30	mjames	11	*
50	mjames	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
30	mjames	16	*
		17	******************************************************************************
50	mjames	18	*/
30	mjames	19
		20	/* Define to prevent recursive inclusion -------------------------------------*/
		21	#ifndef __STM32L1xx_HAL_UART_H
		22	#define __STM32L1xx_HAL_UART_H
		23
		24	#ifdef __cplusplus
50	mjames	25	extern "C" {
30	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	* @{
50	mjames	37	*/
30	mjames	38
50	mjames	39	/* Exported types ------------------------------------------------------------*/
30	mjames	40	/** @defgroup UART_Exported_Types UART Exported Types
		41	* @{
50	mjames	42	*/
30	mjames	43
50	mjames	44	/**
30	mjames	45	* @brief UART Init Structure definition
50	mjames	46	*/
30	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)))
50	mjames	52	- FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8 * (OVR8+1)) + 0.5
30	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). */
50	mjames	67
		68	uint32_t Mode; /*!< Specifies whether the Receive or Transmit mode is enabled or disabled.
30	mjames	69	This parameter can be a value of @ref UART_Mode */
		70
50	mjames	71	uint32_t HwFlowCtl; /*!< Specifies whether the hardware flow control mode is enabled or disabled.
30	mjames	72	This parameter can be a value of @ref UART_Hardware_Flow_Control */
		73
50	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	*/
30	mjames	117	typedef enum
		118	{
50	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;
30	mjames	137
50	mjames	138	/**
		139	* @brief UART handle Structure definition
		140	*/
		141	typedef struct __UART_HandleTypeDef
30	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
50	mjames	151	__IO uint16_t TxXferCount; /!< UART Tx Transfer Counter /
30	mjames	152
		153	uint8_t pRxBuffPtr; /!< Pointer to UART Rx transfer Buffer */
		154
		155	uint16_t RxXferSize; /!< UART Rx Transfer size /
		156
50	mjames	157	__IO uint16_t RxXferCount; /!< UART Rx Transfer Counter /
30	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
50	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
30	mjames	172	__IO uint32_t ErrorCode; /!< UART Error code /
		173
50	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 */
30	mjames	184
50	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)
30	mjames	192	/**
50	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	/**
30	mjames	220	* @}
		221	*/
		222
		223	/* Exported constants --------------------------------------------------------*/
50	mjames	224	/** @defgroup UART_Exported_Constants UART Exported Constants
30	mjames	225	* @{
		226	*/
		227
50	mjames	228	/** @defgroup UART_Error_Code UART Error Code
30	mjames	229	* @{
		230	*/
50	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 */
30	mjames	240	/**
		241	* @}
		242	*/
		243
50	mjames	244	/** @defgroup UART_Word_Length UART Word Length
30	mjames	245	* @{
		246	*/
50	mjames	247	#define UART_WORDLENGTH_8B 0x00000000U
30	mjames	248	#define UART_WORDLENGTH_9B ((uint32_t)USART_CR1_M)
		249	/**
		250	* @}
		251	*/
		252
50	mjames	253	/** @defgroup UART_Stop_Bits UART Number of Stop Bits
30	mjames	254	* @{
		255	*/
50	mjames	256	#define UART_STOPBITS_1 0x00000000U
30	mjames	257	#define UART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1)
		258	/**
		259	* @}
50	mjames	260	*/
30	mjames	261
50	mjames	262	/** @defgroup UART_Parity UART Parity
30	mjames	263	* @{
50	mjames	264	*/
		265	#define UART_PARITY_NONE 0x00000000U
30	mjames	266	#define UART_PARITY_EVEN ((uint32_t)USART_CR1_PCE)
50	mjames	267	#define UART_PARITY_ODD ((uint32_t)(USART_CR1_PCE \| USART_CR1_PS))
30	mjames	268	/**
		269	* @}
50	mjames	270	*/
30	mjames	271
		272	/** @defgroup UART_Hardware_Flow_Control UART Hardware Flow Control
		273	* @{
50	mjames	274	*/
		275	#define UART_HWCONTROL_NONE 0x00000000U
30	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	* @{
50	mjames	285	*/
30	mjames	286	#define UART_MODE_RX ((uint32_t)USART_CR1_RE)
		287	#define UART_MODE_TX ((uint32_t)USART_CR1_TE)
50	mjames	288	#define UART_MODE_TX_RX ((uint32_t)(USART_CR1_TE \| USART_CR1_RE))
30	mjames	289	/**
		290	* @}
		291	*/
50	mjames	292
		293	/** @defgroup UART_State UART State
30	mjames	294	* @{
50	mjames	295	*/
		296	#define UART_STATE_DISABLE 0x00000000U
30	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	*/
50	mjames	305	#define UART_OVERSAMPLING_16 0x00000000U
30	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	* @{
50	mjames	313	*/
		314	#define UART_LINBREAKDETECTLENGTH_10B 0x00000000U
30	mjames	315	#define UART_LINBREAKDETECTLENGTH_11B ((uint32_t)USART_CR2_LBDL)
		316	/**
		317	* @}
		318	*/
		319
50	mjames	320	/** @defgroup UART_WakeUp_functions UART Wakeup Functions
30	mjames	321	* @{
		322	*/
50	mjames	323	#define UART_WAKEUPMETHOD_IDLELINE 0x00000000U
30	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)
50	mjames	352	* - 0001: CR1 register
		353	* - 0010: CR2 register
		354	* - 0011: CR3 register
30	mjames	355	* @{
50	mjames	356	*/
30	mjames	357
50	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))
30	mjames	363
50	mjames	364	#define UART_IT_LBD ((uint32_t)(UART_CR2_REG_INDEX << 28U \| USART_CR2_LBDIE))
30	mjames	365
50	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))
30	mjames	368	/**
		369	* @}
		370	*/
		371
		372	/**
		373	* @}
		374	*/
		375
		376	/* Exported macro ------------------------------------------------------------*/
		377	/** @defgroup UART_Exported_Macros UART Exported Macros
		378	* @{
		379	*/
		380
50	mjames	381	/** @brief Reset UART handle gstate & RxState
		382	* @param __HANDLE__ specifies the UART Handle.
		383	* UART Handle selects the USARTx or UARTy peripheral
30	mjames	384	* (USART,UART availability and x,y values depending on device).
		385	* @retval None
		386	*/
50	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 /
30	mjames	400
50	mjames	401	/** @brief Flushes the UART DR register
		402	* @param __HANDLE__ specifies the UART Handle.
		403	* UART Handle selects the USARTx or UARTy peripheral
30	mjames	404	* (USART,UART availability and x,y values depending on device).
		405	*/
		406	#define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR)
		407
50	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
30	mjames	411	* (USART,UART availability and x,y values depending on device).
50	mjames	412	* @param __FLAG__ specifies the flag to check.
30	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
50	mjames	420	* @arg UART_FLAG_ORE: Overrun Error flag
30	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	*/
50	mjames	426	#define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
30	mjames	427
50	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
30	mjames	431	* (USART,UART availability and x,y values depending on device).
50	mjames	432	* @param __FLAG__ specifies the flag to check.
30	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.
50	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
30	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.
50	mjames	444	* @note TC flag can be also cleared by software sequence: a read operation to
30	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.
50	mjames	447	*
30	mjames	448	* @retval None
		449	*/
		450	#define __HAL_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))
		451
50	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
30	mjames	455	* (USART,UART availability and x,y values depending on device).
		456	* @retval None
		457	*/
50	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)
30	mjames	465
50	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
30	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
50	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
30	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
50	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
30	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
50	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
30	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__)
50	mjames	497
30	mjames	498	/** @brief Enable the specified UART interrupt.
50	mjames	499	* @param __HANDLE__ specifies the UART Handle.
		500	* UART Handle selects the USARTx or UARTy peripheral
30	mjames	501	* (USART,UART availability and x,y values depending on device).
50	mjames	502	* @param __INTERRUPT__ specifies the UART interrupt source to enable.
30	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	*/
50	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)): \
30	mjames	516	((__HANDLE__)->Instance->CR3 \|= ((__INTERRUPT__) & UART_IT_MASK)))
		517
		518	/** @brief Disable the specified UART interrupt.
50	mjames	519	* @param __HANDLE__ specifies the UART Handle.
		520	* UART Handle selects the USARTx or UARTy peripheral
30	mjames	521	* (USART,UART availability and x,y values depending on device).
50	mjames	522	* @param __INTERRUPT__ specifies the UART interrupt source to disable.
30	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	*/
50	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)): \
30	mjames	536	((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK)))
50	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
30	mjames	541	* (USART,UART availability and x,y values depending on device).
50	mjames	542	* @param __IT__ specifies the UART interrupt source to check.
30	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	*/
50	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)? \
30	mjames	554	(__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & UART_IT_MASK))
		555
50	mjames	556	/** @brief Enable CTS flow control
		557	* @note This macro allows to enable CTS hardware flow control for a given UART instance,
30	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__))
50	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).
30	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; \
50	mjames	574	} while(0U)
30	mjames	575
50	mjames	576	/** @brief Disable CTS flow control
		577	* @note This macro allows to disable CTS hardware flow control for a given UART instance,
30	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__))
50	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).
30	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); \
50	mjames	594	} while(0U)
30	mjames	595
50	mjames	596	/** @brief Enable RTS flow control
		597	* This macro allows to enable RTS hardware flow control for a given UART instance,
30	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__))
50	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).
30	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; \
50	mjames	614	} while(0U)
30	mjames	615
50	mjames	616	/** @brief Disable RTS flow control
		617	* This macro allows to disable RTS hardware flow control for a given UART instance,
30	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__))
50	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).
30	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); \
50	mjames	634	} while(0U)
30	mjames	635
50	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)
30	mjames	641
50	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
30	mjames	648	/** @brief Enable UART
50	mjames	649	* @param __HANDLE__ specifies the UART Handle.
30	mjames	650	* @retval None
50	mjames	651	*/
30	mjames	652	#define __HAL_UART_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 \|= USART_CR1_UE)
		653
		654	/** @brief Disable UART
50	mjames	655	* @param __HANDLE__ specifies the UART Handle.
30	mjames	656	* @retval None
		657	*/
		658	#define __HAL_UART_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE)
		659	/**
		660	* @}
		661	*/
		662
50	mjames	663	/* Exported functions --------------------------------------------------------*/
		664	/** @addtogroup UART_Exported_Functions
30	mjames	665	* @{
		666	*/
		667
50	mjames	668	/** @addtogroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
30	mjames	669	* @{
		670	*/
		671
50	mjames	672	/* Initialization/de-initialization functions **********************************/
30	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);
50	mjames	677	HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart);
30	mjames	678	void HAL_UART_MspInit(UART_HandleTypeDef *huart);
		679	void HAL_UART_MspDeInit(UART_HandleTypeDef *huart);
		680
50	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
30	mjames	687	/**
		688	* @}
		689	*/
		690
50	mjames	691	/** @addtogroup UART_Exported_Functions_Group2 IO operation functions
30	mjames	692	* @{
		693	*/
		694
50	mjames	695	/* IO operation functions *******************************************************/
30	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);
50	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
30	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);
50	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);
30	mjames	722
		723	/**
		724	* @}
		725	*/
		726
50	mjames	727	/** @addtogroup UART_Exported_Functions_Group3
30	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
50	mjames	740	/** @addtogroup UART_Exported_Functions_Group4
30	mjames	741	* @{
		742	*/
50	mjames	743	/* Peripheral State functions **************************************************/
30	mjames	744	HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart);
		745	uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart);
50	mjames	746	/**
		747	* @}
		748	*/
30	mjames	749
		750	/**
		751	* @}
		752	*/
50	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
30	mjames	763
50	mjames	764	#define UART_CR1_REG_INDEX 1U
		765	#define UART_CR2_REG_INDEX 2U
		766	#define UART_CR3_REG_INDEX 3U
30	mjames	767	/**
		768	* @}
		769	*/
		770
50	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
30	mjames	819	/**
		820	* @}
50	mjames	821	*/
30	mjames	822
50	mjames	823	/* Private functions ---------------------------------------------------------*/
		824	/** @defgroup UART_Private_Functions UART Private Functions
		825	* @{
		826	*/
		827
30	mjames	828	/**
		829	* @}
		830	*/
		831
50	mjames	832	/**
		833	* @}
		834	*/
		835
		836	/**
		837	* @}
		838	*/
		839
30	mjames	840	#ifdef __cplusplus
		841	}
		842	#endif
		843
		844	#endif /* __STM32L1xx_HAL_UART_H */
		845
		846	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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