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targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_uart.c@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:: bogdanm
Date:: Thu Oct 01 15:25:22 2015 +0300
Revision:: 0:9b334a45a8ff
Child:: 144:ef7eb2e8f9f7

Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

User	Revision	Line number	New contents of line
bogdanm	0:9b334a45a8ff	1	/**
bogdanm	0:9b334a45a8ff	2	******************************************************************************
bogdanm	0:9b334a45a8ff	3	* @file stm32l1xx_hal_uart.c
bogdanm	0:9b334a45a8ff	4	* @author MCD Application Team
bogdanm	0:9b334a45a8ff	5	* @version V1.0.0
bogdanm	0:9b334a45a8ff	6	* @date 5-September-2014
bogdanm	0:9b334a45a8ff	7	* @brief UART HAL module driver.
bogdanm	0:9b334a45a8ff	8	* This file provides firmware functions to manage the following
bogdanm	0:9b334a45a8ff	9	* functionalities of the Universal Asynchronous Receiver Transmitter (UART) peripheral:
bogdanm	0:9b334a45a8ff	10	* + Initialization and de-initialization functions
bogdanm	0:9b334a45a8ff	11	* + IO operation functions
bogdanm	0:9b334a45a8ff	12	* + Peripheral Control functions
bogdanm	0:9b334a45a8ff	13	* + Peripheral State and Errors functions
bogdanm	0:9b334a45a8ff	14	@verbatim
bogdanm	0:9b334a45a8ff	15	==============================================================================
bogdanm	0:9b334a45a8ff	16	##### How to use this driver #####
bogdanm	0:9b334a45a8ff	17	==============================================================================
bogdanm	0:9b334a45a8ff	18	[..]
bogdanm	0:9b334a45a8ff	19	The UART HAL driver can be used as follows:
bogdanm	0:9b334a45a8ff	20
bogdanm	0:9b334a45a8ff	21	(#) Declare a UART_HandleTypeDef handle structure.
bogdanm	0:9b334a45a8ff	22
bogdanm	0:9b334a45a8ff	23	(#) Initialize the UART low level resources by implementing the HAL_UART_MspInit() API:
bogdanm	0:9b334a45a8ff	24	(##) Enable the USARTx interface clock.
bogdanm	0:9b334a45a8ff	25	(##) UART pins configuration:
bogdanm	0:9b334a45a8ff	26	(+++) Enable the clock for the UART GPIOs.
bogdanm	0:9b334a45a8ff	27	(+++) Configure these UART pins as alternate function pull-up.
bogdanm	0:9b334a45a8ff	28	(##) NVIC configuration if you need to use interrupt process (HAL_UART_Transmit_IT()
bogdanm	0:9b334a45a8ff	29	and HAL_UART_Receive_IT() APIs):
bogdanm	0:9b334a45a8ff	30	(+++) Configure the USARTx interrupt priority.
bogdanm	0:9b334a45a8ff	31	(+++) Enable the NVIC USART IRQ handle.
bogdanm	0:9b334a45a8ff	32	(##) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA()
bogdanm	0:9b334a45a8ff	33	and HAL_UART_Receive_DMA() APIs):
bogdanm	0:9b334a45a8ff	34	(+++) Declare a DMA handle structure for the Tx/Rx channel.
bogdanm	0:9b334a45a8ff	35	(+++) Enable the DMAx interface clock.
bogdanm	0:9b334a45a8ff	36	(+++) Configure the declared DMA handle structure with the required
bogdanm	0:9b334a45a8ff	37	Tx/Rx parameters.
bogdanm	0:9b334a45a8ff	38	(+++) Configure the DMA Tx/Rx channel.
bogdanm	0:9b334a45a8ff	39	(+++) Associate the initialized DMA handle to the UART DMA Tx/Rx handle.
bogdanm	0:9b334a45a8ff	40	(+++) Configure the priority and enable the NVIC for the transfer complete
bogdanm	0:9b334a45a8ff	41	interrupt on the DMA Tx/Rx channel.
bogdanm	0:9b334a45a8ff	42
bogdanm	0:9b334a45a8ff	43	(#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
bogdanm	0:9b334a45a8ff	44	flow control and Mode(Receiver/Transmitter) in the huart Init structure.
bogdanm	0:9b334a45a8ff	45
bogdanm	0:9b334a45a8ff	46	(#) For the UART asynchronous mode, initialize the UART registers by calling
bogdanm	0:9b334a45a8ff	47	the HAL_UART_Init() API.
bogdanm	0:9b334a45a8ff	48
bogdanm	0:9b334a45a8ff	49	(#) For the UART Half duplex mode, initialize the UART registers by calling
bogdanm	0:9b334a45a8ff	50	the HAL_HalfDuplex_Init() API.
bogdanm	0:9b334a45a8ff	51
bogdanm	0:9b334a45a8ff	52	(#) For the LIN mode, initialize the UART registers by calling the HAL_LIN_Init() API.
bogdanm	0:9b334a45a8ff	53
bogdanm	0:9b334a45a8ff	54	(#) For the Multi-Processor mode, initialize the UART registers by calling
bogdanm	0:9b334a45a8ff	55	the HAL_MultiProcessor_Init() API.
bogdanm	0:9b334a45a8ff	56
bogdanm	0:9b334a45a8ff	57	[..]
bogdanm	0:9b334a45a8ff	58	(@) The specific UART interrupts (Transmission complete interrupt,
bogdanm	0:9b334a45a8ff	59	RXNE interrupt and Error Interrupts) will be managed using the macros
bogdanm	0:9b334a45a8ff	60	__HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the transmit
bogdanm	0:9b334a45a8ff	61	and receive process.
bogdanm	0:9b334a45a8ff	62
bogdanm	0:9b334a45a8ff	63	[..]
bogdanm	0:9b334a45a8ff	64	(@) These APIs (HAL_UART_Init() and HAL_HalfDuplex_Init()) configure also the
bogdanm	0:9b334a45a8ff	65	low level Hardware GPIO, CLOCK, CORTEX...etc) by calling the customed
bogdanm	0:9b334a45a8ff	66	HAL_UART_MspInit() API.
bogdanm	0:9b334a45a8ff	67
bogdanm	0:9b334a45a8ff	68	[..]
bogdanm	0:9b334a45a8ff	69	Three operation modes are available within this driver :
bogdanm	0:9b334a45a8ff	70
bogdanm	0:9b334a45a8ff	71	* Polling mode IO operation *
bogdanm	0:9b334a45a8ff	72	=================================
bogdanm	0:9b334a45a8ff	73	[..]
bogdanm	0:9b334a45a8ff	74	(+) Send an amount of data in blocking mode using HAL_UART_Transmit()
bogdanm	0:9b334a45a8ff	75	(+) Receive an amount of data in blocking mode using HAL_UART_Receive()
bogdanm	0:9b334a45a8ff	76
bogdanm	0:9b334a45a8ff	77	* Interrupt mode IO operation *
bogdanm	0:9b334a45a8ff	78	===================================
bogdanm	0:9b334a45a8ff	79	[..]
bogdanm	0:9b334a45a8ff	80	(+) Send an amount of data in non blocking mode using HAL_UART_Transmit_IT()
bogdanm	0:9b334a45a8ff	81	(+) At transmission end of half transfer HAL_UART_TxHalfCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	82	add his own code by customization of function pointer HAL_UART_TxHalfCpltCallback
bogdanm	0:9b334a45a8ff	83	(+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	84	add his own code by customization of function pointer HAL_UART_TxCpltCallback
bogdanm	0:9b334a45a8ff	85	(+) Receive an amount of data in non blocking mode using HAL_UART_Receive_IT()
bogdanm	0:9b334a45a8ff	86	(+) At reception end of half transfer HAL_UART_RxHalfCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	87	add his own code by customization of function pointer HAL_UART_RxHalfCpltCallback
bogdanm	0:9b334a45a8ff	88	(+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	89	add his own code by customization of function pointer HAL_UART_RxCpltCallback
bogdanm	0:9b334a45a8ff	90	(+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
bogdanm	0:9b334a45a8ff	91	add his own code by customization of function pointer HAL_UART_ErrorCallback
bogdanm	0:9b334a45a8ff	92
bogdanm	0:9b334a45a8ff	93	* DMA mode IO operation *
bogdanm	0:9b334a45a8ff	94	==============================
bogdanm	0:9b334a45a8ff	95	[..]
bogdanm	0:9b334a45a8ff	96	(+) Send an amount of data in non blocking mode (DMA) using HAL_UART_Transmit_DMA()
bogdanm	0:9b334a45a8ff	97	(+) At transmission end of half transfer HAL_UART_TxHalfCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	98	add his own code by customization of function pointer HAL_UART_TxHalfCpltCallback
bogdanm	0:9b334a45a8ff	99	(+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	100	add his own code by customization of function pointer HAL_UART_TxCpltCallback
bogdanm	0:9b334a45a8ff	101	(+) Receive an amount of data in non blocking mode (DMA) using HAL_UART_Receive_DMA()
bogdanm	0:9b334a45a8ff	102	(+) At reception end of half transfer HAL_UART_RxHalfCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	103	add his own code by customization of function pointer HAL_UART_RxHalfCpltCallback
bogdanm	0:9b334a45a8ff	104	(+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
bogdanm	0:9b334a45a8ff	105	add his own code by customization of function pointer HAL_UART_RxCpltCallback
bogdanm	0:9b334a45a8ff	106	(+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
bogdanm	0:9b334a45a8ff	107	add his own code by customization of function pointer HAL_UART_ErrorCallback
bogdanm	0:9b334a45a8ff	108	(+) Pause the DMA Transfer using HAL_UART_DMAPause()
bogdanm	0:9b334a45a8ff	109	(+) Resume the DMA Transfer using HAL_UART_DMAResume()
bogdanm	0:9b334a45a8ff	110	(+) Stop the DMA Transfer using HAL_UART_DMAStop()
bogdanm	0:9b334a45a8ff	111
bogdanm	0:9b334a45a8ff	112	* UART HAL driver macros list *
bogdanm	0:9b334a45a8ff	113	=============================================
bogdanm	0:9b334a45a8ff	114	[..]
bogdanm	0:9b334a45a8ff	115	Below the list of most used macros in UART HAL driver.
bogdanm	0:9b334a45a8ff	116
bogdanm	0:9b334a45a8ff	117	(+) __HAL_UART_ENABLE: Enable the UART peripheral
bogdanm	0:9b334a45a8ff	118	(+) __HAL_UART_DISABLE: Disable the UART peripheral
bogdanm	0:9b334a45a8ff	119	(+) __HAL_UART_GET_FLAG : Check whether the specified UART flag is set or not
bogdanm	0:9b334a45a8ff	120	(+) __HAL_UART_CLEAR_FLAG : Clear the specified UART pending flag
bogdanm	0:9b334a45a8ff	121	(+) __HAL_UART_ENABLE_IT: Enable the specified UART interrupt
bogdanm	0:9b334a45a8ff	122	(+) __HAL_UART_DISABLE_IT: Disable the specified UART interrupt
bogdanm	0:9b334a45a8ff	123
bogdanm	0:9b334a45a8ff	124	[..]
bogdanm	0:9b334a45a8ff	125	(@) You can refer to the UART HAL driver header file for more useful macros
bogdanm	0:9b334a45a8ff	126
bogdanm	0:9b334a45a8ff	127	@endverbatim
bogdanm	0:9b334a45a8ff	128	******************************************************************************
bogdanm	0:9b334a45a8ff	129	* @attention
bogdanm	0:9b334a45a8ff	130	*
bogdanm	0:9b334a45a8ff	131	* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
bogdanm	0:9b334a45a8ff	132	*
bogdanm	0:9b334a45a8ff	133	* Redistribution and use in source and binary forms, with or without modification,
bogdanm	0:9b334a45a8ff	134	* are permitted provided that the following conditions are met:
bogdanm	0:9b334a45a8ff	135	* 1. Redistributions of source code must retain the above copyright notice,
bogdanm	0:9b334a45a8ff	136	* this list of conditions and the following disclaimer.
bogdanm	0:9b334a45a8ff	137	* 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm	0:9b334a45a8ff	138	* this list of conditions and the following disclaimer in the documentation
bogdanm	0:9b334a45a8ff	139	* and/or other materials provided with the distribution.
bogdanm	0:9b334a45a8ff	140	* 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm	0:9b334a45a8ff	141	* may be used to endorse or promote products derived from this software
bogdanm	0:9b334a45a8ff	142	* without specific prior written permission.
bogdanm	0:9b334a45a8ff	143	*
bogdanm	0:9b334a45a8ff	144	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm	0:9b334a45a8ff	145	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm	0:9b334a45a8ff	146	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm	0:9b334a45a8ff	147	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm	0:9b334a45a8ff	148	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm	0:9b334a45a8ff	149	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm	0:9b334a45a8ff	150	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm	0:9b334a45a8ff	151	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm	0:9b334a45a8ff	152	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm	0:9b334a45a8ff	153	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm	0:9b334a45a8ff	154	*
bogdanm	0:9b334a45a8ff	155	******************************************************************************
bogdanm	0:9b334a45a8ff	156	*/
bogdanm	0:9b334a45a8ff	157
bogdanm	0:9b334a45a8ff	158	/* Includes ------------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	159	#include "stm32l1xx_hal.h"
bogdanm	0:9b334a45a8ff	160
bogdanm	0:9b334a45a8ff	161	/** @addtogroup STM32L1xx_HAL_Driver
bogdanm	0:9b334a45a8ff	162	* @{
bogdanm	0:9b334a45a8ff	163	*/
bogdanm	0:9b334a45a8ff	164
bogdanm	0:9b334a45a8ff	165	/** @defgroup UART UART HAL module driver
bogdanm	0:9b334a45a8ff	166	* @brief HAL UART module driver
bogdanm	0:9b334a45a8ff	167	* @{
bogdanm	0:9b334a45a8ff	168	*/
bogdanm	0:9b334a45a8ff	169	#ifdef HAL_UART_MODULE_ENABLED
bogdanm	0:9b334a45a8ff	170
bogdanm	0:9b334a45a8ff	171	/* Private typedef -----------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	172	/* Private define ------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	173	/** @defgroup UART_Private_Constants UART Private Constants
bogdanm	0:9b334a45a8ff	174	* @{
bogdanm	0:9b334a45a8ff	175	*/
bogdanm	0:9b334a45a8ff	176	#define UART_TIMEOUT_VALUE 22000
bogdanm	0:9b334a45a8ff	177	/**
bogdanm	0:9b334a45a8ff	178	* @}
bogdanm	0:9b334a45a8ff	179	*/
bogdanm	0:9b334a45a8ff	180
bogdanm	0:9b334a45a8ff	181	/* Private macro -------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	182	/* Private variables ---------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	183	/* Private function prototypes -----------------------------------------------*/
bogdanm	0:9b334a45a8ff	184	/** @addtogroup UART_Private_Functions UART Private Functions
bogdanm	0:9b334a45a8ff	185	* @{
bogdanm	0:9b334a45a8ff	186	*/
bogdanm	0:9b334a45a8ff	187	static void UART_SetConfig (UART_HandleTypeDef *huart);
bogdanm	0:9b334a45a8ff	188	static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart);
bogdanm	0:9b334a45a8ff	189	static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart);
bogdanm	0:9b334a45a8ff	190	static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart);
bogdanm	0:9b334a45a8ff	191	static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	192	static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	193	static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	194	static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	195	static void UART_DMAError(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	196	static HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
bogdanm	0:9b334a45a8ff	197	/**
bogdanm	0:9b334a45a8ff	198	* @}
bogdanm	0:9b334a45a8ff	199	*/
bogdanm	0:9b334a45a8ff	200
bogdanm	0:9b334a45a8ff	201	/* Exported functions ---------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	202
bogdanm	0:9b334a45a8ff	203	/** @defgroup UART_Exported_Functions UART Exported Functions
bogdanm	0:9b334a45a8ff	204	* @{
bogdanm	0:9b334a45a8ff	205	*/
bogdanm	0:9b334a45a8ff	206
bogdanm	0:9b334a45a8ff	207	/** @defgroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
bogdanm	0:9b334a45a8ff	208	* @brief Initialization and Configuration functions
bogdanm	0:9b334a45a8ff	209	*
bogdanm	0:9b334a45a8ff	210	@verbatim
bogdanm	0:9b334a45a8ff	211	===============================================================================
bogdanm	0:9b334a45a8ff	212	##### Initialization and Configuration functions #####
bogdanm	0:9b334a45a8ff	213	===============================================================================
bogdanm	0:9b334a45a8ff	214	[..]
bogdanm	0:9b334a45a8ff	215	This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
bogdanm	0:9b334a45a8ff	216	in asynchronous mode.
bogdanm	0:9b334a45a8ff	217	(+) For the asynchronous mode only these parameters can be configured:
bogdanm	0:9b334a45a8ff	218	(++) Baud Rate
bogdanm	0:9b334a45a8ff	219	(++) Word Length
bogdanm	0:9b334a45a8ff	220	(++) Stop Bit
bogdanm	0:9b334a45a8ff	221	(++) Parity: If the parity is enabled, then the MSB bit of the data written
bogdanm	0:9b334a45a8ff	222	in the data register is transmitted but is changed by the parity bit.
bogdanm	0:9b334a45a8ff	223	Depending on the frame length defined by the M bit (8-bits or 9-bits),
bogdanm	0:9b334a45a8ff	224	the possible UART frame formats are as listed in the following table:
bogdanm	0:9b334a45a8ff	225	+-------------------------------------------------------------+
bogdanm	0:9b334a45a8ff	226	\| M bit \| PCE bit \| UART frame \|
bogdanm	0:9b334a45a8ff	227	\|---------------------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	228	\| 0 \| 0 \| \| SB \| 8 bit data \| STB \| \|
bogdanm	0:9b334a45a8ff	229	\|---------\|-----------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	230	\| 0 \| 1 \| \| SB \| 7 bit data \| PB \| STB \| \|
bogdanm	0:9b334a45a8ff	231	\|---------\|-----------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	232	\| 1 \| 0 \| \| SB \| 9 bit data \| STB \| \|
bogdanm	0:9b334a45a8ff	233	\|---------\|-----------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	234	\| 1 \| 1 \| \| SB \| 8 bit data \| PB \| STB \| \|
bogdanm	0:9b334a45a8ff	235	+-------------------------------------------------------------+
bogdanm	0:9b334a45a8ff	236	(++) Hardware flow control
bogdanm	0:9b334a45a8ff	237	(++) Receiver/transmitter modes
bogdanm	0:9b334a45a8ff	238	(++) Over Sampling Methode
bogdanm	0:9b334a45a8ff	239	[..]
bogdanm	0:9b334a45a8ff	240	The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init() and HAL_MultiProcessor_Init() APIs
bogdanm	0:9b334a45a8ff	241	follow respectively the UART asynchronous, UART Half duplex, LIN and Multi-Processor
bogdanm	0:9b334a45a8ff	242	configuration procedures (details for the procedures are available in reference manual (RM0038)).
bogdanm	0:9b334a45a8ff	243
bogdanm	0:9b334a45a8ff	244	@endverbatim
bogdanm	0:9b334a45a8ff	245	* @{
bogdanm	0:9b334a45a8ff	246	*/
bogdanm	0:9b334a45a8ff	247
bogdanm	0:9b334a45a8ff	248	/**
bogdanm	0:9b334a45a8ff	249	* @brief Initializes the UART mode according to the specified parameters in
bogdanm	0:9b334a45a8ff	250	* the UART_InitTypeDef and create the associated handle.
bogdanm	0:9b334a45a8ff	251	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	252	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	253	* @retval HAL status
bogdanm	0:9b334a45a8ff	254	*/
bogdanm	0:9b334a45a8ff	255	HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	256	{
bogdanm	0:9b334a45a8ff	257	/* Check the UART handle allocation */
bogdanm	0:9b334a45a8ff	258	if(huart == HAL_NULL)
bogdanm	0:9b334a45a8ff	259	{
bogdanm	0:9b334a45a8ff	260	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	261	}
bogdanm	0:9b334a45a8ff	262
bogdanm	0:9b334a45a8ff	263	if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
bogdanm	0:9b334a45a8ff	264	{
bogdanm	0:9b334a45a8ff	265	/* Check the parameters */
bogdanm	0:9b334a45a8ff	266	assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	267	}
bogdanm	0:9b334a45a8ff	268	else
bogdanm	0:9b334a45a8ff	269	{
bogdanm	0:9b334a45a8ff	270	/* Check the parameters */
bogdanm	0:9b334a45a8ff	271	assert_param(IS_UART_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	272	}
bogdanm	0:9b334a45a8ff	273
bogdanm	0:9b334a45a8ff	274	if(huart->State == HAL_UART_STATE_RESET)
bogdanm	0:9b334a45a8ff	275	{
bogdanm	0:9b334a45a8ff	276	/* Init the low level hardware */
bogdanm	0:9b334a45a8ff	277	HAL_UART_MspInit(huart);
bogdanm	0:9b334a45a8ff	278	}
bogdanm	0:9b334a45a8ff	279
bogdanm	0:9b334a45a8ff	280	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	281
bogdanm	0:9b334a45a8ff	282	/* Disable the peripheral */
bogdanm	0:9b334a45a8ff	283	__HAL_UART_DISABLE(huart);
bogdanm	0:9b334a45a8ff	284
bogdanm	0:9b334a45a8ff	285	/* Set the UART Communication parameters */
bogdanm	0:9b334a45a8ff	286	UART_SetConfig(huart);
bogdanm	0:9b334a45a8ff	287
bogdanm	0:9b334a45a8ff	288	/* In asynchronous mode, the following bits must be kept cleared:
bogdanm	0:9b334a45a8ff	289	- LINEN and CLKEN bits in the USART_CR2 register,
bogdanm	0:9b334a45a8ff	290	- SCEN, HDSEL and IREN bits in the USART_CR3 register.*/
bogdanm	0:9b334a45a8ff	291	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
bogdanm	0:9b334a45a8ff	292	huart->Instance->CR3 &= ~(USART_CR3_SCEN \| USART_CR3_HDSEL \| USART_CR3_IREN);
bogdanm	0:9b334a45a8ff	293
bogdanm	0:9b334a45a8ff	294	/* Enable the peripheral */
bogdanm	0:9b334a45a8ff	295	__HAL_UART_ENABLE(huart);
bogdanm	0:9b334a45a8ff	296
bogdanm	0:9b334a45a8ff	297	/* Initialize the UART state */
bogdanm	0:9b334a45a8ff	298	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	299	huart->State= HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	300
bogdanm	0:9b334a45a8ff	301	return HAL_OK;
bogdanm	0:9b334a45a8ff	302	}
bogdanm	0:9b334a45a8ff	303
bogdanm	0:9b334a45a8ff	304	/**
bogdanm	0:9b334a45a8ff	305	* @brief Initializes the half-duplex mode according to the specified
bogdanm	0:9b334a45a8ff	306	* parameters in the UART_InitTypeDef and create the associated handle.
bogdanm	0:9b334a45a8ff	307	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	308	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	309	* @retval HAL status
bogdanm	0:9b334a45a8ff	310	*/
bogdanm	0:9b334a45a8ff	311	HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	312	{
bogdanm	0:9b334a45a8ff	313	/* Check the UART handle allocation */
bogdanm	0:9b334a45a8ff	314	if(huart == HAL_NULL)
bogdanm	0:9b334a45a8ff	315	{
bogdanm	0:9b334a45a8ff	316	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	317	}
bogdanm	0:9b334a45a8ff	318
bogdanm	0:9b334a45a8ff	319	/* Check UART instance */
bogdanm	0:9b334a45a8ff	320	assert_param(IS_UART_HALFDUPLEX_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	321
bogdanm	0:9b334a45a8ff	322	if(huart->State == HAL_UART_STATE_RESET)
bogdanm	0:9b334a45a8ff	323	{
bogdanm	0:9b334a45a8ff	324	/* Init the low level hardware */
bogdanm	0:9b334a45a8ff	325	HAL_UART_MspInit(huart);
bogdanm	0:9b334a45a8ff	326	}
bogdanm	0:9b334a45a8ff	327
bogdanm	0:9b334a45a8ff	328	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	329
bogdanm	0:9b334a45a8ff	330	/* Disable the peripheral */
bogdanm	0:9b334a45a8ff	331	__HAL_UART_DISABLE(huart);
bogdanm	0:9b334a45a8ff	332
bogdanm	0:9b334a45a8ff	333	/* Set the UART Communication parameters */
bogdanm	0:9b334a45a8ff	334	UART_SetConfig(huart);
bogdanm	0:9b334a45a8ff	335
bogdanm	0:9b334a45a8ff	336	/* In half-duplex mode, the following bits must be kept cleared:
bogdanm	0:9b334a45a8ff	337	- LINEN and CLKEN bits in the USART_CR2 register,
bogdanm	0:9b334a45a8ff	338	- SCEN and IREN bits in the USART_CR3 register.*/
bogdanm	0:9b334a45a8ff	339	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
bogdanm	0:9b334a45a8ff	340	huart->Instance->CR3 &= ~(USART_CR3_IREN \| USART_CR3_SCEN);
bogdanm	0:9b334a45a8ff	341
bogdanm	0:9b334a45a8ff	342	/* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */
bogdanm	0:9b334a45a8ff	343	huart->Instance->CR3 \|= USART_CR3_HDSEL;
bogdanm	0:9b334a45a8ff	344
bogdanm	0:9b334a45a8ff	345	/* Enable the peripheral */
bogdanm	0:9b334a45a8ff	346	__HAL_UART_ENABLE(huart);
bogdanm	0:9b334a45a8ff	347
bogdanm	0:9b334a45a8ff	348	/* Initialize the UART state*/
bogdanm	0:9b334a45a8ff	349	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	350	huart->State= HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	351
bogdanm	0:9b334a45a8ff	352	return HAL_OK;
bogdanm	0:9b334a45a8ff	353	}
bogdanm	0:9b334a45a8ff	354
bogdanm	0:9b334a45a8ff	355	/**
bogdanm	0:9b334a45a8ff	356	* @brief Initializes the LIN mode according to the specified
bogdanm	0:9b334a45a8ff	357	* parameters in the UART_InitTypeDef and create the associated handle.
bogdanm	0:9b334a45a8ff	358	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	359	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	360	* @param BreakDetectLength: Specifies the LIN break detection length.
bogdanm	0:9b334a45a8ff	361	* This parameter can be one of the following values:
bogdanm	0:9b334a45a8ff	362	* @arg UART_LINBREAKDETECTLENGTH_10B: 10-bit break detection
bogdanm	0:9b334a45a8ff	363	* @arg UART_LINBREAKDETECTLENGTH_11B: 11-bit break detection
bogdanm	0:9b334a45a8ff	364	* @retval HAL status
bogdanm	0:9b334a45a8ff	365	*/
bogdanm	0:9b334a45a8ff	366	HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength)
bogdanm	0:9b334a45a8ff	367	{
bogdanm	0:9b334a45a8ff	368	/* Check the UART handle allocation */
bogdanm	0:9b334a45a8ff	369	if(huart == HAL_NULL)
bogdanm	0:9b334a45a8ff	370	{
bogdanm	0:9b334a45a8ff	371	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	372	}
bogdanm	0:9b334a45a8ff	373
bogdanm	0:9b334a45a8ff	374	/* Check the LIN UART instance */
bogdanm	0:9b334a45a8ff	375	assert_param(IS_UART_LIN_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	376	/* Check the Break detection length parameter */
bogdanm	0:9b334a45a8ff	377	assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength));
bogdanm	0:9b334a45a8ff	378
bogdanm	0:9b334a45a8ff	379	/* LIN mode limited to 16-bit oversampling only */
bogdanm	0:9b334a45a8ff	380	if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
bogdanm	0:9b334a45a8ff	381	{
bogdanm	0:9b334a45a8ff	382	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	383	}
bogdanm	0:9b334a45a8ff	384
bogdanm	0:9b334a45a8ff	385	if(huart->State == HAL_UART_STATE_RESET)
bogdanm	0:9b334a45a8ff	386	{
bogdanm	0:9b334a45a8ff	387	/* Init the low level hardware */
bogdanm	0:9b334a45a8ff	388	HAL_UART_MspInit(huart);
bogdanm	0:9b334a45a8ff	389	}
bogdanm	0:9b334a45a8ff	390
bogdanm	0:9b334a45a8ff	391	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	392
bogdanm	0:9b334a45a8ff	393	/* Disable the peripheral */
bogdanm	0:9b334a45a8ff	394	__HAL_UART_DISABLE(huart);
bogdanm	0:9b334a45a8ff	395
bogdanm	0:9b334a45a8ff	396	/* Set the UART Communication parameters */
bogdanm	0:9b334a45a8ff	397	UART_SetConfig(huart);
bogdanm	0:9b334a45a8ff	398
bogdanm	0:9b334a45a8ff	399	/* In LIN mode, the following bits must be kept cleared:
bogdanm	0:9b334a45a8ff	400	- CLKEN bits in the USART_CR2 register,
bogdanm	0:9b334a45a8ff	401	- SCEN and IREN bits in the USART_CR3 register.*/
bogdanm	0:9b334a45a8ff	402	huart->Instance->CR2 &= ~(USART_CR2_CLKEN);
bogdanm	0:9b334a45a8ff	403	huart->Instance->CR3 &= ~(USART_CR3_HDSEL \| USART_CR3_IREN \| USART_CR3_SCEN);
bogdanm	0:9b334a45a8ff	404
bogdanm	0:9b334a45a8ff	405	/* Enable the LIN mode by setting the LINEN bit in the CR2 register */
bogdanm	0:9b334a45a8ff	406	huart->Instance->CR2 \|= USART_CR2_LINEN;
bogdanm	0:9b334a45a8ff	407
bogdanm	0:9b334a45a8ff	408	/* Set the USART LIN Break detection length. */
bogdanm	0:9b334a45a8ff	409	MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength);
bogdanm	0:9b334a45a8ff	410
bogdanm	0:9b334a45a8ff	411	/* Enable the peripheral */
bogdanm	0:9b334a45a8ff	412	__HAL_UART_ENABLE(huart);
bogdanm	0:9b334a45a8ff	413
bogdanm	0:9b334a45a8ff	414	/* Initialize the UART state*/
bogdanm	0:9b334a45a8ff	415	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	416	huart->State= HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	417
bogdanm	0:9b334a45a8ff	418	return HAL_OK;
bogdanm	0:9b334a45a8ff	419	}
bogdanm	0:9b334a45a8ff	420
bogdanm	0:9b334a45a8ff	421	/**
bogdanm	0:9b334a45a8ff	422	* @brief Initializes the Multi-Processor mode according to the specified
bogdanm	0:9b334a45a8ff	423	* parameters in the UART_InitTypeDef and create the associated handle.
bogdanm	0:9b334a45a8ff	424	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	425	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	426	* @param Address: UART node address
bogdanm	0:9b334a45a8ff	427	* @param WakeUpMethod: specifies the UART wakeup method.
bogdanm	0:9b334a45a8ff	428	* This parameter can be one of the following values:
bogdanm	0:9b334a45a8ff	429	* @arg UART_WAKEUPMETHOD_IDLELINE: Wakeup by an idle line detection
bogdanm	0:9b334a45a8ff	430	* @arg UART_WAKEUPMETHOD_ADDRESSMARK: Wakeup by an address mark
bogdanm	0:9b334a45a8ff	431	* @retval HAL status
bogdanm	0:9b334a45a8ff	432	*/
bogdanm	0:9b334a45a8ff	433	HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod)
bogdanm	0:9b334a45a8ff	434	{
bogdanm	0:9b334a45a8ff	435	/* Check the UART handle allocation */
bogdanm	0:9b334a45a8ff	436	if(huart == HAL_NULL)
bogdanm	0:9b334a45a8ff	437	{
bogdanm	0:9b334a45a8ff	438	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	439	}
bogdanm	0:9b334a45a8ff	440
bogdanm	0:9b334a45a8ff	441	/* Check UART instance capabilities */
bogdanm	0:9b334a45a8ff	442	assert_param(IS_UART_MULTIPROCESSOR_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	443
bogdanm	0:9b334a45a8ff	444	/* Check the Address & wake up method parameters */
bogdanm	0:9b334a45a8ff	445	assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
bogdanm	0:9b334a45a8ff	446	assert_param(IS_UART_ADDRESS(Address));
bogdanm	0:9b334a45a8ff	447
bogdanm	0:9b334a45a8ff	448	if(huart->State == HAL_UART_STATE_RESET)
bogdanm	0:9b334a45a8ff	449	{
bogdanm	0:9b334a45a8ff	450	/* Init the low level hardware */
bogdanm	0:9b334a45a8ff	451	HAL_UART_MspInit(huart);
bogdanm	0:9b334a45a8ff	452	}
bogdanm	0:9b334a45a8ff	453
bogdanm	0:9b334a45a8ff	454	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	455
bogdanm	0:9b334a45a8ff	456	/* Disable the peripheral */
bogdanm	0:9b334a45a8ff	457	__HAL_UART_DISABLE(huart);
bogdanm	0:9b334a45a8ff	458
bogdanm	0:9b334a45a8ff	459	/* Set the UART Communication parameters */
bogdanm	0:9b334a45a8ff	460	UART_SetConfig(huart);
bogdanm	0:9b334a45a8ff	461
bogdanm	0:9b334a45a8ff	462	/* In Multi-Processor mode, the following bits must be kept cleared:
bogdanm	0:9b334a45a8ff	463	- LINEN and CLKEN bits in the USART_CR2 register,
bogdanm	0:9b334a45a8ff	464	- SCEN, HDSEL and IREN bits in the USART_CR3 register */
bogdanm	0:9b334a45a8ff	465	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
bogdanm	0:9b334a45a8ff	466	huart->Instance->CR3 &= ~(USART_CR3_SCEN \| USART_CR3_HDSEL \| USART_CR3_IREN);
bogdanm	0:9b334a45a8ff	467
bogdanm	0:9b334a45a8ff	468	/* Set the USART address node */
bogdanm	0:9b334a45a8ff	469	MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, Address);
bogdanm	0:9b334a45a8ff	470
bogdanm	0:9b334a45a8ff	471	/* Set the wake up method by setting the WAKE bit in the CR1 register */
bogdanm	0:9b334a45a8ff	472	MODIFY_REG(huart->Instance->CR1, USART_CR1_WAKE, WakeUpMethod);
bogdanm	0:9b334a45a8ff	473
bogdanm	0:9b334a45a8ff	474	/* Enable the peripheral */
bogdanm	0:9b334a45a8ff	475	__HAL_UART_ENABLE(huart);
bogdanm	0:9b334a45a8ff	476
bogdanm	0:9b334a45a8ff	477	/* Initialize the UART state */
bogdanm	0:9b334a45a8ff	478	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	479	huart->State= HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	480
bogdanm	0:9b334a45a8ff	481	return HAL_OK;
bogdanm	0:9b334a45a8ff	482	}
bogdanm	0:9b334a45a8ff	483
bogdanm	0:9b334a45a8ff	484	/**
bogdanm	0:9b334a45a8ff	485	* @brief DeInitializes the UART peripheral.
bogdanm	0:9b334a45a8ff	486	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	487	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	488	* @retval HAL status
bogdanm	0:9b334a45a8ff	489	*/
bogdanm	0:9b334a45a8ff	490	HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	491	{
bogdanm	0:9b334a45a8ff	492	/* Check the UART handle allocation */
bogdanm	0:9b334a45a8ff	493	if(huart == HAL_NULL)
bogdanm	0:9b334a45a8ff	494	{
bogdanm	0:9b334a45a8ff	495	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	496	}
bogdanm	0:9b334a45a8ff	497
bogdanm	0:9b334a45a8ff	498	/* Check the parameters */
bogdanm	0:9b334a45a8ff	499	assert_param(IS_UART_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	500
bogdanm	0:9b334a45a8ff	501	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	502
bogdanm	0:9b334a45a8ff	503	/* Disable the Peripheral */
bogdanm	0:9b334a45a8ff	504	__HAL_UART_DISABLE(huart);
bogdanm	0:9b334a45a8ff	505
bogdanm	0:9b334a45a8ff	506	/* DeInit the low level hardware */
bogdanm	0:9b334a45a8ff	507	HAL_UART_MspDeInit(huart);
bogdanm	0:9b334a45a8ff	508
bogdanm	0:9b334a45a8ff	509	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	510	huart->State = HAL_UART_STATE_RESET;
bogdanm	0:9b334a45a8ff	511
bogdanm	0:9b334a45a8ff	512	/* Process Unlock */
bogdanm	0:9b334a45a8ff	513	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	514
bogdanm	0:9b334a45a8ff	515	return HAL_OK;
bogdanm	0:9b334a45a8ff	516	}
bogdanm	0:9b334a45a8ff	517
bogdanm	0:9b334a45a8ff	518	/**
bogdanm	0:9b334a45a8ff	519	* @brief UART MSP Init.
bogdanm	0:9b334a45a8ff	520	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	521	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	522	* @retval None
bogdanm	0:9b334a45a8ff	523	*/
bogdanm	0:9b334a45a8ff	524	__weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	525	{
bogdanm	0:9b334a45a8ff	526	/* NOTE: This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	527	the HAL_UART_MspInit could be implemented in the user file
bogdanm	0:9b334a45a8ff	528	*/
bogdanm	0:9b334a45a8ff	529	}
bogdanm	0:9b334a45a8ff	530
bogdanm	0:9b334a45a8ff	531	/**
bogdanm	0:9b334a45a8ff	532	* @brief UART MSP DeInit.
bogdanm	0:9b334a45a8ff	533	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	534	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	535	* @retval None
bogdanm	0:9b334a45a8ff	536	*/
bogdanm	0:9b334a45a8ff	537	__weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	538	{
bogdanm	0:9b334a45a8ff	539	/* NOTE: This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	540	the HAL_UART_MspDeInit could be implemented in the user file
bogdanm	0:9b334a45a8ff	541	*/
bogdanm	0:9b334a45a8ff	542	}
bogdanm	0:9b334a45a8ff	543
bogdanm	0:9b334a45a8ff	544	/**
bogdanm	0:9b334a45a8ff	545	* @}
bogdanm	0:9b334a45a8ff	546	*/
bogdanm	0:9b334a45a8ff	547
bogdanm	0:9b334a45a8ff	548	/** @defgroup UART_Exported_Functions_Group2 IO operation functions
bogdanm	0:9b334a45a8ff	549	* @brief UART Transmit and Receive functions
bogdanm	0:9b334a45a8ff	550	*
bogdanm	0:9b334a45a8ff	551	@verbatim
bogdanm	0:9b334a45a8ff	552	==============================================================================
bogdanm	0:9b334a45a8ff	553	##### IO operation functions #####
bogdanm	0:9b334a45a8ff	554	==============================================================================
bogdanm	0:9b334a45a8ff	555	[..]
bogdanm	0:9b334a45a8ff	556	This subsection provides a set of functions allowing to manage the UART asynchronous
bogdanm	0:9b334a45a8ff	557	and Half duplex data transfers.
bogdanm	0:9b334a45a8ff	558
bogdanm	0:9b334a45a8ff	559	(#) There are two modes of transfer:
bogdanm	0:9b334a45a8ff	560	(++) Blocking mode: The communication is performed in polling mode.
bogdanm	0:9b334a45a8ff	561	The HAL status of all data processing is returned by the same function
bogdanm	0:9b334a45a8ff	562	after finishing transfer.
bogdanm	0:9b334a45a8ff	563	(++) Non blocking mode: The communication is performed using Interrupts
bogdanm	0:9b334a45a8ff	564	or DMA, these APIs return the HAL status.
bogdanm	0:9b334a45a8ff	565	The end of the data processing will be indicated through the
bogdanm	0:9b334a45a8ff	566	dedicated UART IRQ when using Interrupt mode or the DMA IRQ when
bogdanm	0:9b334a45a8ff	567	using DMA mode.
bogdanm	0:9b334a45a8ff	568	The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks
bogdanm	0:9b334a45a8ff	569	will be executed respectivelly at the end of the transmit or receive process.
bogdanm	0:9b334a45a8ff	570	The HAL_UART_ErrorCallback() user callback will be executed when
bogdanm	0:9b334a45a8ff	571	a communication error is detected.
bogdanm	0:9b334a45a8ff	572
bogdanm	0:9b334a45a8ff	573	(#) Blocking mode APIs are:
bogdanm	0:9b334a45a8ff	574	(++) HAL_UART_Transmit()
bogdanm	0:9b334a45a8ff	575	(++) HAL_UART_Receive()
bogdanm	0:9b334a45a8ff	576
bogdanm	0:9b334a45a8ff	577	(#) Non Blocking mode APIs with Interrupt are:
bogdanm	0:9b334a45a8ff	578	(++) HAL_UART_Transmit_IT()
bogdanm	0:9b334a45a8ff	579	(++) HAL_UART_Receive_IT()
bogdanm	0:9b334a45a8ff	580	(++) HAL_UART_IRQHandler()
bogdanm	0:9b334a45a8ff	581
bogdanm	0:9b334a45a8ff	582	(#) Non Blocking mode functions with DMA are:
bogdanm	0:9b334a45a8ff	583	(++) HAL_UART_Transmit_DMA()
bogdanm	0:9b334a45a8ff	584	(++) HAL_UART_Receive_DMA()
bogdanm	0:9b334a45a8ff	585	(++) HAL_UART_DMAPause()
bogdanm	0:9b334a45a8ff	586	(++) HAL_UART_DMAResume()
bogdanm	0:9b334a45a8ff	587	(++) HAL_UART_DMAStop()
bogdanm	0:9b334a45a8ff	588
bogdanm	0:9b334a45a8ff	589	(#) A set of Transfer Complete Callbacks are provided in non blocking mode:
bogdanm	0:9b334a45a8ff	590	(++) HAL_UART_TxHalfCpltCallback()
bogdanm	0:9b334a45a8ff	591	(++) HAL_UART_TxCpltCallback()
bogdanm	0:9b334a45a8ff	592	(++) HAL_UART_RxHalfCpltCallback()
bogdanm	0:9b334a45a8ff	593	(++) HAL_UART_RxCpltCallback()
bogdanm	0:9b334a45a8ff	594	(++) HAL_UART_ErrorCallback()
bogdanm	0:9b334a45a8ff	595
bogdanm	0:9b334a45a8ff	596	[..]
bogdanm	0:9b334a45a8ff	597	(@) In the Half duplex communication, it is forbidden to run the transmit
bogdanm	0:9b334a45a8ff	598	and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX
bogdanm	0:9b334a45a8ff	599	can't be useful.
bogdanm	0:9b334a45a8ff	600
bogdanm	0:9b334a45a8ff	601	@endverbatim
bogdanm	0:9b334a45a8ff	602	* @{
bogdanm	0:9b334a45a8ff	603	*/
bogdanm	0:9b334a45a8ff	604
bogdanm	0:9b334a45a8ff	605	/**
bogdanm	0:9b334a45a8ff	606	* @brief Sends an amount of data in blocking mode.
bogdanm	0:9b334a45a8ff	607	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	608	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	609	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	610	* @param Size: Amount of data to be sent
bogdanm	0:9b334a45a8ff	611	* @param Timeout: Timeout duration
bogdanm	0:9b334a45a8ff	612	* @retval HAL status
bogdanm	0:9b334a45a8ff	613	*/
bogdanm	0:9b334a45a8ff	614	HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size, uint32_t Timeout)
bogdanm	0:9b334a45a8ff	615	{
bogdanm	0:9b334a45a8ff	616	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	617	uint32_t tmp1 = 0;
bogdanm	0:9b334a45a8ff	618
bogdanm	0:9b334a45a8ff	619	tmp1 = huart->State;
bogdanm	0:9b334a45a8ff	620	if((tmp1 == HAL_UART_STATE_READY) \|\| (tmp1 == HAL_UART_STATE_BUSY_RX))
bogdanm	0:9b334a45a8ff	621	{
bogdanm	0:9b334a45a8ff	622	if((pData == HAL_NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	623	{
bogdanm	0:9b334a45a8ff	624	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	625	}
bogdanm	0:9b334a45a8ff	626
bogdanm	0:9b334a45a8ff	627	/* Process Locked */
bogdanm	0:9b334a45a8ff	628	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	629
bogdanm	0:9b334a45a8ff	630	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	631	/* Check if a non-blocking receive process is ongoing or not */
bogdanm	0:9b334a45a8ff	632	if(huart->State == HAL_UART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	633	{
bogdanm	0:9b334a45a8ff	634	huart->State = HAL_UART_STATE_BUSY_TX_RX;
bogdanm	0:9b334a45a8ff	635	}
bogdanm	0:9b334a45a8ff	636	else
bogdanm	0:9b334a45a8ff	637	{
bogdanm	0:9b334a45a8ff	638	huart->State = HAL_UART_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	639	}
bogdanm	0:9b334a45a8ff	640
bogdanm	0:9b334a45a8ff	641	huart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	642	huart->TxXferCount = Size;
bogdanm	0:9b334a45a8ff	643	while(huart->TxXferCount > 0)
bogdanm	0:9b334a45a8ff	644	{
bogdanm	0:9b334a45a8ff	645	huart->TxXferCount--;
bogdanm	0:9b334a45a8ff	646	if(huart->Init.WordLength == UART_WORDLENGTH_9B)
bogdanm	0:9b334a45a8ff	647	{
bogdanm	0:9b334a45a8ff	648	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	649	{
bogdanm	0:9b334a45a8ff	650	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	651	}
bogdanm	0:9b334a45a8ff	652	tmp = (uint16_t*) pData;
bogdanm	0:9b334a45a8ff	653	huart->Instance->DR = (*tmp & (uint16_t)0x01FF);
bogdanm	0:9b334a45a8ff	654	if(huart->Init.Parity == UART_PARITY_NONE)
bogdanm	0:9b334a45a8ff	655	{
bogdanm	0:9b334a45a8ff	656	pData +=2;
bogdanm	0:9b334a45a8ff	657	}
bogdanm	0:9b334a45a8ff	658	else
bogdanm	0:9b334a45a8ff	659	{
bogdanm	0:9b334a45a8ff	660	pData +=1;
bogdanm	0:9b334a45a8ff	661	}
bogdanm	0:9b334a45a8ff	662	}
bogdanm	0:9b334a45a8ff	663	else
bogdanm	0:9b334a45a8ff	664	{
bogdanm	0:9b334a45a8ff	665	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	666	{
bogdanm	0:9b334a45a8ff	667	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	668	}
bogdanm	0:9b334a45a8ff	669	huart->Instance->DR = (*pData++ & (uint8_t)0xFF);
bogdanm	0:9b334a45a8ff	670	}
bogdanm	0:9b334a45a8ff	671	}
bogdanm	0:9b334a45a8ff	672
bogdanm	0:9b334a45a8ff	673	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	674	{
bogdanm	0:9b334a45a8ff	675	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	676	}
bogdanm	0:9b334a45a8ff	677
bogdanm	0:9b334a45a8ff	678	/* Check if a non-blocking receive process is ongoing or not */
bogdanm	0:9b334a45a8ff	679	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	680	{
bogdanm	0:9b334a45a8ff	681	huart->State = HAL_UART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	682	}
bogdanm	0:9b334a45a8ff	683	else
bogdanm	0:9b334a45a8ff	684	{
bogdanm	0:9b334a45a8ff	685	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	686	}
bogdanm	0:9b334a45a8ff	687
bogdanm	0:9b334a45a8ff	688	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	689	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	690
bogdanm	0:9b334a45a8ff	691	return HAL_OK;
bogdanm	0:9b334a45a8ff	692	}
bogdanm	0:9b334a45a8ff	693	else
bogdanm	0:9b334a45a8ff	694	{
bogdanm	0:9b334a45a8ff	695	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	696	}
bogdanm	0:9b334a45a8ff	697	}
bogdanm	0:9b334a45a8ff	698
bogdanm	0:9b334a45a8ff	699	/**
bogdanm	0:9b334a45a8ff	700	* @brief Receives an amount of data in blocking mode.
bogdanm	0:9b334a45a8ff	701	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	702	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	703	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	704	* @param Size: Amount of data to be received
bogdanm	0:9b334a45a8ff	705	* @param Timeout: Timeout duration
bogdanm	0:9b334a45a8ff	706	* @retval HAL status
bogdanm	0:9b334a45a8ff	707	*/
bogdanm	0:9b334a45a8ff	708	HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size, uint32_t Timeout)
bogdanm	0:9b334a45a8ff	709	{
bogdanm	0:9b334a45a8ff	710	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	711	uint32_t tmp1 = 0;
bogdanm	0:9b334a45a8ff	712
bogdanm	0:9b334a45a8ff	713	tmp1 = huart->State;
bogdanm	0:9b334a45a8ff	714	if((tmp1 == HAL_UART_STATE_READY) \|\| (tmp1 == HAL_UART_STATE_BUSY_TX))
bogdanm	0:9b334a45a8ff	715	{
bogdanm	0:9b334a45a8ff	716	if((pData == HAL_NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	717	{
bogdanm	0:9b334a45a8ff	718	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	719	}
bogdanm	0:9b334a45a8ff	720
bogdanm	0:9b334a45a8ff	721	/* Process Locked */
bogdanm	0:9b334a45a8ff	722	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	723
bogdanm	0:9b334a45a8ff	724	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	725	/* Check if a non-blocking transmit process is ongoing or not */
bogdanm	0:9b334a45a8ff	726	if(huart->State == HAL_UART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	727	{
bogdanm	0:9b334a45a8ff	728	huart->State = HAL_UART_STATE_BUSY_TX_RX;
bogdanm	0:9b334a45a8ff	729	}
bogdanm	0:9b334a45a8ff	730	else
bogdanm	0:9b334a45a8ff	731	{
bogdanm	0:9b334a45a8ff	732	huart->State = HAL_UART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	733	}
bogdanm	0:9b334a45a8ff	734
bogdanm	0:9b334a45a8ff	735	huart->RxXferSize = Size;
bogdanm	0:9b334a45a8ff	736	huart->RxXferCount = Size;
bogdanm	0:9b334a45a8ff	737
bogdanm	0:9b334a45a8ff	738	/* Check the remain data to be received */
bogdanm	0:9b334a45a8ff	739	while(huart->RxXferCount > 0)
bogdanm	0:9b334a45a8ff	740	{
bogdanm	0:9b334a45a8ff	741	huart->RxXferCount--;
bogdanm	0:9b334a45a8ff	742	if(huart->Init.WordLength == UART_WORDLENGTH_9B)
bogdanm	0:9b334a45a8ff	743	{
bogdanm	0:9b334a45a8ff	744	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	745	{
bogdanm	0:9b334a45a8ff	746	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	747	}
bogdanm	0:9b334a45a8ff	748	tmp = (uint16_t*) pData ;
bogdanm	0:9b334a45a8ff	749	if(huart->Init.Parity == UART_PARITY_NONE)
bogdanm	0:9b334a45a8ff	750	{
bogdanm	0:9b334a45a8ff	751	*tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x01FF);
bogdanm	0:9b334a45a8ff	752	pData +=2;
bogdanm	0:9b334a45a8ff	753	}
bogdanm	0:9b334a45a8ff	754	else
bogdanm	0:9b334a45a8ff	755	{
bogdanm	0:9b334a45a8ff	756	*tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x00FF);
bogdanm	0:9b334a45a8ff	757	pData +=1;
bogdanm	0:9b334a45a8ff	758	}
bogdanm	0:9b334a45a8ff	759
bogdanm	0:9b334a45a8ff	760	}
bogdanm	0:9b334a45a8ff	761	else
bogdanm	0:9b334a45a8ff	762	{
bogdanm	0:9b334a45a8ff	763	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	764	{
bogdanm	0:9b334a45a8ff	765	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	766	}
bogdanm	0:9b334a45a8ff	767	if(huart->Init.Parity == UART_PARITY_NONE)
bogdanm	0:9b334a45a8ff	768	{
bogdanm	0:9b334a45a8ff	769	*pData++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x00FF);
bogdanm	0:9b334a45a8ff	770	}
bogdanm	0:9b334a45a8ff	771	else
bogdanm	0:9b334a45a8ff	772	{
bogdanm	0:9b334a45a8ff	773	*pData++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x007F);
bogdanm	0:9b334a45a8ff	774	}
bogdanm	0:9b334a45a8ff	775
bogdanm	0:9b334a45a8ff	776	}
bogdanm	0:9b334a45a8ff	777	}
bogdanm	0:9b334a45a8ff	778
bogdanm	0:9b334a45a8ff	779	/* Check if a non-blocking transmit process is ongoing or not */
bogdanm	0:9b334a45a8ff	780	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	781	{
bogdanm	0:9b334a45a8ff	782	huart->State = HAL_UART_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	783	}
bogdanm	0:9b334a45a8ff	784	else
bogdanm	0:9b334a45a8ff	785	{
bogdanm	0:9b334a45a8ff	786	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	787	}
bogdanm	0:9b334a45a8ff	788	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	789	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	790
bogdanm	0:9b334a45a8ff	791	return HAL_OK;
bogdanm	0:9b334a45a8ff	792	}
bogdanm	0:9b334a45a8ff	793	else
bogdanm	0:9b334a45a8ff	794	{
bogdanm	0:9b334a45a8ff	795	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	796	}
bogdanm	0:9b334a45a8ff	797	}
bogdanm	0:9b334a45a8ff	798
bogdanm	0:9b334a45a8ff	799	/**
bogdanm	0:9b334a45a8ff	800	* @brief Sends an amount of data in non blocking mode.
bogdanm	0:9b334a45a8ff	801	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	802	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	803	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	804	* @param Size: Amount of data to be sent
bogdanm	0:9b334a45a8ff	805	* @retval HAL status
bogdanm	0:9b334a45a8ff	806	*/
bogdanm	0:9b334a45a8ff	807	HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
bogdanm	0:9b334a45a8ff	808	{
bogdanm	0:9b334a45a8ff	809	uint32_t tmp = 0;
bogdanm	0:9b334a45a8ff	810
bogdanm	0:9b334a45a8ff	811	tmp = huart->State;
bogdanm	0:9b334a45a8ff	812	if((tmp == HAL_UART_STATE_READY) \|\| (tmp == HAL_UART_STATE_BUSY_RX))
bogdanm	0:9b334a45a8ff	813	{
bogdanm	0:9b334a45a8ff	814	if((pData == HAL_NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	815	{
bogdanm	0:9b334a45a8ff	816	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	817	}
bogdanm	0:9b334a45a8ff	818
bogdanm	0:9b334a45a8ff	819	/* Process Locked */
bogdanm	0:9b334a45a8ff	820	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	821
bogdanm	0:9b334a45a8ff	822	huart->pTxBuffPtr = pData;
bogdanm	0:9b334a45a8ff	823	huart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	824	huart->TxXferCount = Size;
bogdanm	0:9b334a45a8ff	825
bogdanm	0:9b334a45a8ff	826	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	827	/* Check if a receive process is ongoing or not */
bogdanm	0:9b334a45a8ff	828	if(huart->State == HAL_UART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	829	{
bogdanm	0:9b334a45a8ff	830	huart->State = HAL_UART_STATE_BUSY_TX_RX;
bogdanm	0:9b334a45a8ff	831	}
bogdanm	0:9b334a45a8ff	832	else
bogdanm	0:9b334a45a8ff	833	{
bogdanm	0:9b334a45a8ff	834	huart->State = HAL_UART_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	835	}
bogdanm	0:9b334a45a8ff	836
bogdanm	0:9b334a45a8ff	837	/* Enable the UART Parity Error Interrupt */
bogdanm	0:9b334a45a8ff	838	__HAL_UART_ENABLE_IT(huart, UART_IT_PE);
bogdanm	0:9b334a45a8ff	839
bogdanm	0:9b334a45a8ff	840	/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm	0:9b334a45a8ff	841	__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
bogdanm	0:9b334a45a8ff	842
bogdanm	0:9b334a45a8ff	843	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	844	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	845
bogdanm	0:9b334a45a8ff	846	/* Enable the UART Transmit data register empty Interrupt */
bogdanm	0:9b334a45a8ff	847	__HAL_UART_ENABLE_IT(huart, UART_IT_TXE);
bogdanm	0:9b334a45a8ff	848
bogdanm	0:9b334a45a8ff	849	return HAL_OK;
bogdanm	0:9b334a45a8ff	850	}
bogdanm	0:9b334a45a8ff	851	else
bogdanm	0:9b334a45a8ff	852	{
bogdanm	0:9b334a45a8ff	853	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	854	}
bogdanm	0:9b334a45a8ff	855	}
bogdanm	0:9b334a45a8ff	856
bogdanm	0:9b334a45a8ff	857	/**
bogdanm	0:9b334a45a8ff	858	* @brief Receives an amount of data in non blocking mode
bogdanm	0:9b334a45a8ff	859	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	860	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	861	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	862	* @param Size: Amount of data to be received
bogdanm	0:9b334a45a8ff	863	* @retval HAL status
bogdanm	0:9b334a45a8ff	864	*/
bogdanm	0:9b334a45a8ff	865	HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
bogdanm	0:9b334a45a8ff	866	{
bogdanm	0:9b334a45a8ff	867	uint32_t tmp = 0;
bogdanm	0:9b334a45a8ff	868
bogdanm	0:9b334a45a8ff	869	tmp = huart->State;
bogdanm	0:9b334a45a8ff	870	if((tmp == HAL_UART_STATE_READY) \|\| (tmp == HAL_UART_STATE_BUSY_TX))
bogdanm	0:9b334a45a8ff	871	{
bogdanm	0:9b334a45a8ff	872	if((pData == HAL_NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	873	{
bogdanm	0:9b334a45a8ff	874	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	875	}
bogdanm	0:9b334a45a8ff	876
bogdanm	0:9b334a45a8ff	877	/* Process Locked */
bogdanm	0:9b334a45a8ff	878	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	879
bogdanm	0:9b334a45a8ff	880	huart->pRxBuffPtr = pData;
bogdanm	0:9b334a45a8ff	881	huart->RxXferSize = Size;
bogdanm	0:9b334a45a8ff	882	huart->RxXferCount = Size;
bogdanm	0:9b334a45a8ff	883
bogdanm	0:9b334a45a8ff	884	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	885	/* Check if a transmit process is ongoing or not */
bogdanm	0:9b334a45a8ff	886	if(huart->State == HAL_UART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	887	{
bogdanm	0:9b334a45a8ff	888	huart->State = HAL_UART_STATE_BUSY_TX_RX;
bogdanm	0:9b334a45a8ff	889	}
bogdanm	0:9b334a45a8ff	890	else
bogdanm	0:9b334a45a8ff	891	{
bogdanm	0:9b334a45a8ff	892	huart->State = HAL_UART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	893	}
bogdanm	0:9b334a45a8ff	894
bogdanm	0:9b334a45a8ff	895	/* Enable the UART Parity Error Interrupt */
bogdanm	0:9b334a45a8ff	896	__HAL_UART_ENABLE_IT(huart, UART_IT_PE);
bogdanm	0:9b334a45a8ff	897
bogdanm	0:9b334a45a8ff	898	/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm	0:9b334a45a8ff	899	__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
bogdanm	0:9b334a45a8ff	900
bogdanm	0:9b334a45a8ff	901	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	902	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	903
bogdanm	0:9b334a45a8ff	904	/* Enable the UART Data Register not empty Interrupt */
bogdanm	0:9b334a45a8ff	905	__HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
bogdanm	0:9b334a45a8ff	906
bogdanm	0:9b334a45a8ff	907	return HAL_OK;
bogdanm	0:9b334a45a8ff	908	}
bogdanm	0:9b334a45a8ff	909	else
bogdanm	0:9b334a45a8ff	910	{
bogdanm	0:9b334a45a8ff	911	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	912	}
bogdanm	0:9b334a45a8ff	913	}
bogdanm	0:9b334a45a8ff	914
bogdanm	0:9b334a45a8ff	915	/**
bogdanm	0:9b334a45a8ff	916	* @brief Sends an amount of data in non blocking mode.
bogdanm	0:9b334a45a8ff	917	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	918	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	919	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	920	* @param Size: Amount of data to be sent
bogdanm	0:9b334a45a8ff	921	* @retval HAL status
bogdanm	0:9b334a45a8ff	922	*/
bogdanm	0:9b334a45a8ff	923	HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
bogdanm	0:9b334a45a8ff	924	{
bogdanm	0:9b334a45a8ff	925	uint32_t *tmp;
bogdanm	0:9b334a45a8ff	926	uint32_t tmp1 = 0;
bogdanm	0:9b334a45a8ff	927
bogdanm	0:9b334a45a8ff	928	tmp1 = huart->State;
bogdanm	0:9b334a45a8ff	929	if((tmp1 == HAL_UART_STATE_READY) \|\| (tmp1 == HAL_UART_STATE_BUSY_RX))
bogdanm	0:9b334a45a8ff	930	{
bogdanm	0:9b334a45a8ff	931	if((pData == HAL_NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	932	{
bogdanm	0:9b334a45a8ff	933	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	934	}
bogdanm	0:9b334a45a8ff	935
bogdanm	0:9b334a45a8ff	936	/* Process Locked */
bogdanm	0:9b334a45a8ff	937	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	938
bogdanm	0:9b334a45a8ff	939	huart->pTxBuffPtr = pData;
bogdanm	0:9b334a45a8ff	940	huart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	941	huart->TxXferCount = Size;
bogdanm	0:9b334a45a8ff	942
bogdanm	0:9b334a45a8ff	943	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	944	/* Check if a receive process is ongoing or not */
bogdanm	0:9b334a45a8ff	945	if(huart->State == HAL_UART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	946	{
bogdanm	0:9b334a45a8ff	947	huart->State = HAL_UART_STATE_BUSY_TX_RX;
bogdanm	0:9b334a45a8ff	948	}
bogdanm	0:9b334a45a8ff	949	else
bogdanm	0:9b334a45a8ff	950	{
bogdanm	0:9b334a45a8ff	951	huart->State = HAL_UART_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	952	}
bogdanm	0:9b334a45a8ff	953
bogdanm	0:9b334a45a8ff	954	/* Set the UART DMA transfer complete callback */
bogdanm	0:9b334a45a8ff	955	huart->hdmatx->XferCpltCallback = UART_DMATransmitCplt;
bogdanm	0:9b334a45a8ff	956
bogdanm	0:9b334a45a8ff	957	/* Set the UART DMA Half transfer complete callback */
bogdanm	0:9b334a45a8ff	958	huart->hdmatx->XferHalfCpltCallback = UART_DMATxHalfCplt;
bogdanm	0:9b334a45a8ff	959
bogdanm	0:9b334a45a8ff	960	/* Set the DMA error callback */
bogdanm	0:9b334a45a8ff	961	huart->hdmatx->XferErrorCallback = UART_DMAError;
bogdanm	0:9b334a45a8ff	962
bogdanm	0:9b334a45a8ff	963	/* Enable the UART transmit DMA channel */
bogdanm	0:9b334a45a8ff	964	tmp = (uint32_t*)&pData;
bogdanm	0:9b334a45a8ff	965	HAL_DMA_Start_IT(huart->hdmatx, (uint32_t)tmp, (uint32_t)&huart->Instance->DR, Size);
bogdanm	0:9b334a45a8ff	966
bogdanm	0:9b334a45a8ff	967	/* Enable the DMA transfer for transmit request by setting the DMAT bit
bogdanm	0:9b334a45a8ff	968	in the UART CR3 register */
bogdanm	0:9b334a45a8ff	969	huart->Instance->CR3 \|= USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	970
bogdanm	0:9b334a45a8ff	971	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	972	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	973
bogdanm	0:9b334a45a8ff	974	return HAL_OK;
bogdanm	0:9b334a45a8ff	975	}
bogdanm	0:9b334a45a8ff	976	else
bogdanm	0:9b334a45a8ff	977	{
bogdanm	0:9b334a45a8ff	978	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	979	}
bogdanm	0:9b334a45a8ff	980	}
bogdanm	0:9b334a45a8ff	981
bogdanm	0:9b334a45a8ff	982	/**
bogdanm	0:9b334a45a8ff	983	* @brief Receives an amount of data in non blocking mode.
bogdanm	0:9b334a45a8ff	984	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	985	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	986	* @param pData: Pointer to data buffer
bogdanm	0:9b334a45a8ff	987	* @param Size: Amount of data to be received
bogdanm	0:9b334a45a8ff	988	* @note When the UART parity is enabled (PCE = 1), the received data contain
bogdanm	0:9b334a45a8ff	989	* the parity bit (MSB position)
bogdanm	0:9b334a45a8ff	990	* @retval HAL status
bogdanm	0:9b334a45a8ff	991	*/
bogdanm	0:9b334a45a8ff	992	HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
bogdanm	0:9b334a45a8ff	993	{
bogdanm	0:9b334a45a8ff	994	uint32_t *tmp;
bogdanm	0:9b334a45a8ff	995	uint32_t tmp1 = 0;
bogdanm	0:9b334a45a8ff	996
bogdanm	0:9b334a45a8ff	997	tmp1 = huart->State;
bogdanm	0:9b334a45a8ff	998	if((tmp1 == HAL_UART_STATE_READY) \|\| (tmp1 == HAL_UART_STATE_BUSY_TX))
bogdanm	0:9b334a45a8ff	999	{
bogdanm	0:9b334a45a8ff	1000	if((pData == HAL_NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	1001	{
bogdanm	0:9b334a45a8ff	1002	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1003	}
bogdanm	0:9b334a45a8ff	1004
bogdanm	0:9b334a45a8ff	1005	/* Process Locked */
bogdanm	0:9b334a45a8ff	1006	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	1007
bogdanm	0:9b334a45a8ff	1008	huart->pRxBuffPtr = pData;
bogdanm	0:9b334a45a8ff	1009	huart->RxXferSize = Size;
bogdanm	0:9b334a45a8ff	1010
bogdanm	0:9b334a45a8ff	1011	huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	1012	/* Check if a transmit process is ongoing or not */
bogdanm	0:9b334a45a8ff	1013	if(huart->State == HAL_UART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	1014	{
bogdanm	0:9b334a45a8ff	1015	huart->State = HAL_UART_STATE_BUSY_TX_RX;
bogdanm	0:9b334a45a8ff	1016	}
bogdanm	0:9b334a45a8ff	1017	else
bogdanm	0:9b334a45a8ff	1018	{
bogdanm	0:9b334a45a8ff	1019	huart->State = HAL_UART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	1020	}
bogdanm	0:9b334a45a8ff	1021
bogdanm	0:9b334a45a8ff	1022	/* Set the UART DMA transfer complete callback */
bogdanm	0:9b334a45a8ff	1023	huart->hdmarx->XferCpltCallback = UART_DMAReceiveCplt;
bogdanm	0:9b334a45a8ff	1024
bogdanm	0:9b334a45a8ff	1025	/* Set the UART DMA Half transfer complete callback */
bogdanm	0:9b334a45a8ff	1026	huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt;
bogdanm	0:9b334a45a8ff	1027
bogdanm	0:9b334a45a8ff	1028	/* Set the DMA error callback */
bogdanm	0:9b334a45a8ff	1029	huart->hdmarx->XferErrorCallback = UART_DMAError;
bogdanm	0:9b334a45a8ff	1030
bogdanm	0:9b334a45a8ff	1031	/* Enable the DMA channel */
bogdanm	0:9b334a45a8ff	1032	tmp = (uint32_t*)&pData;
bogdanm	0:9b334a45a8ff	1033	HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->DR, (uint32_t)tmp, Size);
bogdanm	0:9b334a45a8ff	1034
bogdanm	0:9b334a45a8ff	1035	/* Enable the DMA transfer for the receiver request by setting the DMAR bit
bogdanm	0:9b334a45a8ff	1036	in the UART CR3 register */
bogdanm	0:9b334a45a8ff	1037	huart->Instance->CR3 \|= USART_CR3_DMAR;
bogdanm	0:9b334a45a8ff	1038
bogdanm	0:9b334a45a8ff	1039	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1040	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1041
bogdanm	0:9b334a45a8ff	1042	return HAL_OK;
bogdanm	0:9b334a45a8ff	1043	}
bogdanm	0:9b334a45a8ff	1044	else
bogdanm	0:9b334a45a8ff	1045	{
bogdanm	0:9b334a45a8ff	1046	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	1047	}
bogdanm	0:9b334a45a8ff	1048	}
bogdanm	0:9b334a45a8ff	1049
bogdanm	0:9b334a45a8ff	1050	/**
bogdanm	0:9b334a45a8ff	1051	* @brief Pauses the DMA Transfer.
bogdanm	0:9b334a45a8ff	1052	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1053	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1054	* @retval HAL status
bogdanm	0:9b334a45a8ff	1055	*/
bogdanm	0:9b334a45a8ff	1056	HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1057	{
bogdanm	0:9b334a45a8ff	1058	/* Process Locked */
bogdanm	0:9b334a45a8ff	1059	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	1060
bogdanm	0:9b334a45a8ff	1061	if(huart->State == HAL_UART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	1062	{
bogdanm	0:9b334a45a8ff	1063	/* Disable the UART DMA Tx request */
bogdanm	0:9b334a45a8ff	1064	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
bogdanm	0:9b334a45a8ff	1065	}
bogdanm	0:9b334a45a8ff	1066	else if(huart->State == HAL_UART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	1067	{
bogdanm	0:9b334a45a8ff	1068	/* Disable the UART DMA Rx request */
bogdanm	0:9b334a45a8ff	1069	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
bogdanm	0:9b334a45a8ff	1070	}
bogdanm	0:9b334a45a8ff	1071	else if (huart->State == HAL_UART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	1072	{
bogdanm	0:9b334a45a8ff	1073	/* Disable the UART DMA Tx & Rx requests */
bogdanm	0:9b334a45a8ff	1074	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
bogdanm	0:9b334a45a8ff	1075	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
bogdanm	0:9b334a45a8ff	1076	}
bogdanm	0:9b334a45a8ff	1077	else
bogdanm	0:9b334a45a8ff	1078	{
bogdanm	0:9b334a45a8ff	1079	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1080	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1081
bogdanm	0:9b334a45a8ff	1082	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1083	}
bogdanm	0:9b334a45a8ff	1084
bogdanm	0:9b334a45a8ff	1085	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1086	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1087
bogdanm	0:9b334a45a8ff	1088	return HAL_OK;
bogdanm	0:9b334a45a8ff	1089	}
bogdanm	0:9b334a45a8ff	1090
bogdanm	0:9b334a45a8ff	1091	/**
bogdanm	0:9b334a45a8ff	1092	* @brief Resumes the DMA Transfer.
bogdanm	0:9b334a45a8ff	1093	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1094	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1095	* @retval HAL status
bogdanm	0:9b334a45a8ff	1096	*/
bogdanm	0:9b334a45a8ff	1097	HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1098	{
bogdanm	0:9b334a45a8ff	1099	/* Process Locked */
bogdanm	0:9b334a45a8ff	1100	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	1101
bogdanm	0:9b334a45a8ff	1102	if(huart->State == HAL_UART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	1103	{
bogdanm	0:9b334a45a8ff	1104	/* Enable the UART DMA Tx request */
bogdanm	0:9b334a45a8ff	1105	huart->Instance->CR3 \|= USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	1106	}
bogdanm	0:9b334a45a8ff	1107	else if(huart->State == HAL_UART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	1108	{
bogdanm	0:9b334a45a8ff	1109	/* Clear the Overrun flag before resumming the Rx transfer*/
bogdanm	0:9b334a45a8ff	1110	__HAL_UART_CLEAR_OREFLAG(huart);
bogdanm	0:9b334a45a8ff	1111	/* Enable the UART DMA Rx request */
bogdanm	0:9b334a45a8ff	1112	huart->Instance->CR3 \|= USART_CR3_DMAR;
bogdanm	0:9b334a45a8ff	1113	}
bogdanm	0:9b334a45a8ff	1114	else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	1115	{
bogdanm	0:9b334a45a8ff	1116	/* Clear the Overrun flag before resumming the Rx transfer*/
bogdanm	0:9b334a45a8ff	1117	__HAL_UART_CLEAR_OREFLAG(huart);
bogdanm	0:9b334a45a8ff	1118	/* Enable the UART DMA Tx & Rx request */
bogdanm	0:9b334a45a8ff	1119	huart->Instance->CR3 \|= USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	1120	huart->Instance->CR3 \|= USART_CR3_DMAR;
bogdanm	0:9b334a45a8ff	1121	}
bogdanm	0:9b334a45a8ff	1122	else
bogdanm	0:9b334a45a8ff	1123	{
bogdanm	0:9b334a45a8ff	1124	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1125	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1126
bogdanm	0:9b334a45a8ff	1127	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	1128	}
bogdanm	0:9b334a45a8ff	1129
bogdanm	0:9b334a45a8ff	1130	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1131	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1132
bogdanm	0:9b334a45a8ff	1133	return HAL_OK;
bogdanm	0:9b334a45a8ff	1134	}
bogdanm	0:9b334a45a8ff	1135
bogdanm	0:9b334a45a8ff	1136	/**
bogdanm	0:9b334a45a8ff	1137	* @brief Stops the DMA Transfer.
bogdanm	0:9b334a45a8ff	1138	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1139	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1140	* @retval HAL status
bogdanm	0:9b334a45a8ff	1141	*/
bogdanm	0:9b334a45a8ff	1142	HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1143	{
bogdanm	0:9b334a45a8ff	1144	/* The Lock is not implemented on this API to allow the user application
bogdanm	0:9b334a45a8ff	1145	to call the HAL UART API under callbacks HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback():
bogdanm	0:9b334a45a8ff	1146	when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
bogdanm	0:9b334a45a8ff	1147	and the correspond call back is executed HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback()
bogdanm	0:9b334a45a8ff	1148	*/
bogdanm	0:9b334a45a8ff	1149
bogdanm	0:9b334a45a8ff	1150	/* Disable the UART Tx/Rx DMA requests */
bogdanm	0:9b334a45a8ff	1151	huart->Instance->CR3 &= ~USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	1152	huart->Instance->CR3 &= ~USART_CR3_DMAR;
bogdanm	0:9b334a45a8ff	1153
bogdanm	0:9b334a45a8ff	1154	/* Abort the UART DMA tx channel */
bogdanm	0:9b334a45a8ff	1155	if(huart->hdmatx != HAL_NULL)
bogdanm	0:9b334a45a8ff	1156	{
bogdanm	0:9b334a45a8ff	1157	HAL_DMA_Abort(huart->hdmatx);
bogdanm	0:9b334a45a8ff	1158	}
bogdanm	0:9b334a45a8ff	1159	/* Abort the UART DMA rx channel */
bogdanm	0:9b334a45a8ff	1160	if(huart->hdmarx != HAL_NULL)
bogdanm	0:9b334a45a8ff	1161	{
bogdanm	0:9b334a45a8ff	1162	HAL_DMA_Abort(huart->hdmarx);
bogdanm	0:9b334a45a8ff	1163	}
bogdanm	0:9b334a45a8ff	1164
bogdanm	0:9b334a45a8ff	1165	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1166
bogdanm	0:9b334a45a8ff	1167	return HAL_OK;
bogdanm	0:9b334a45a8ff	1168	}
bogdanm	0:9b334a45a8ff	1169
bogdanm	0:9b334a45a8ff	1170	/**
bogdanm	0:9b334a45a8ff	1171	* @brief This function handles UART interrupt request.
bogdanm	0:9b334a45a8ff	1172	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1173	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1174	* @retval None
bogdanm	0:9b334a45a8ff	1175	*/
bogdanm	0:9b334a45a8ff	1176	void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1177	{
bogdanm	0:9b334a45a8ff	1178	uint32_t tmp1 = 0, tmp2 = 0;
bogdanm	0:9b334a45a8ff	1179
bogdanm	0:9b334a45a8ff	1180	tmp1 = __HAL_UART_GET_FLAG(huart, UART_FLAG_PE);
bogdanm	0:9b334a45a8ff	1181	tmp2 = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_PE);
bogdanm	0:9b334a45a8ff	1182	/* UART parity error interrupt occurred ------------------------------------*/
bogdanm	0:9b334a45a8ff	1183	if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm	0:9b334a45a8ff	1184	{
bogdanm	0:9b334a45a8ff	1185	__HAL_UART_CLEAR_PEFLAG(huart);
bogdanm	0:9b334a45a8ff	1186
bogdanm	0:9b334a45a8ff	1187	huart->ErrorCode \|= HAL_UART_ERROR_PE;
bogdanm	0:9b334a45a8ff	1188	}
bogdanm	0:9b334a45a8ff	1189
bogdanm	0:9b334a45a8ff	1190	tmp1 = __HAL_UART_GET_FLAG(huart, UART_FLAG_FE);
bogdanm	0:9b334a45a8ff	1191	tmp2 = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR);
bogdanm	0:9b334a45a8ff	1192	/* UART frame error interrupt occurred -------------------------------------*/
bogdanm	0:9b334a45a8ff	1193	if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm	0:9b334a45a8ff	1194	{
bogdanm	0:9b334a45a8ff	1195	__HAL_UART_CLEAR_FEFLAG(huart);
bogdanm	0:9b334a45a8ff	1196
bogdanm	0:9b334a45a8ff	1197	huart->ErrorCode \|= HAL_UART_ERROR_FE;
bogdanm	0:9b334a45a8ff	1198	}
bogdanm	0:9b334a45a8ff	1199
bogdanm	0:9b334a45a8ff	1200	tmp1 = __HAL_UART_GET_FLAG(huart, UART_FLAG_NE);
bogdanm	0:9b334a45a8ff	1201	tmp2 = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR);
bogdanm	0:9b334a45a8ff	1202	/* UART noise error interrupt occurred -------------------------------------*/
bogdanm	0:9b334a45a8ff	1203	if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm	0:9b334a45a8ff	1204	{
bogdanm	0:9b334a45a8ff	1205	__HAL_UART_CLEAR_NEFLAG(huart);
bogdanm	0:9b334a45a8ff	1206
bogdanm	0:9b334a45a8ff	1207	huart->ErrorCode \|= HAL_UART_ERROR_NE;
bogdanm	0:9b334a45a8ff	1208	}
bogdanm	0:9b334a45a8ff	1209
bogdanm	0:9b334a45a8ff	1210	tmp1 = __HAL_UART_GET_FLAG(huart, UART_FLAG_ORE);
bogdanm	0:9b334a45a8ff	1211	tmp2 = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR);
bogdanm	0:9b334a45a8ff	1212	/* UART Over-Run interrupt occurred ----------------------------------------*/
bogdanm	0:9b334a45a8ff	1213	if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm	0:9b334a45a8ff	1214	{
bogdanm	0:9b334a45a8ff	1215	__HAL_UART_CLEAR_OREFLAG(huart);
bogdanm	0:9b334a45a8ff	1216
bogdanm	0:9b334a45a8ff	1217	huart->ErrorCode \|= HAL_UART_ERROR_ORE;
bogdanm	0:9b334a45a8ff	1218	}
bogdanm	0:9b334a45a8ff	1219
bogdanm	0:9b334a45a8ff	1220	tmp1 = __HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE);
bogdanm	0:9b334a45a8ff	1221	tmp2 = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_RXNE);
bogdanm	0:9b334a45a8ff	1222	/* UART in mode Receiver ---------------------------------------------------*/
bogdanm	0:9b334a45a8ff	1223	if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm	0:9b334a45a8ff	1224	{
bogdanm	0:9b334a45a8ff	1225	UART_Receive_IT(huart);
bogdanm	0:9b334a45a8ff	1226	}
bogdanm	0:9b334a45a8ff	1227
bogdanm	0:9b334a45a8ff	1228	tmp1 = __HAL_UART_GET_FLAG(huart, UART_FLAG_TXE);
bogdanm	0:9b334a45a8ff	1229	tmp2 = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_TXE);
bogdanm	0:9b334a45a8ff	1230	/* UART in mode Transmitter ------------------------------------------------*/
bogdanm	0:9b334a45a8ff	1231	if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm	0:9b334a45a8ff	1232	{
bogdanm	0:9b334a45a8ff	1233	UART_Transmit_IT(huart);
bogdanm	0:9b334a45a8ff	1234	}
bogdanm	0:9b334a45a8ff	1235
bogdanm	0:9b334a45a8ff	1236	tmp1 = __HAL_UART_GET_FLAG(huart, UART_FLAG_TC);
bogdanm	0:9b334a45a8ff	1237	tmp2 = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_TC);
bogdanm	0:9b334a45a8ff	1238	/* UART in mode Transmitter end --------------------------------------------*/
bogdanm	0:9b334a45a8ff	1239	if((tmp1 != RESET) && (tmp2 != RESET))
bogdanm	0:9b334a45a8ff	1240	{
bogdanm	0:9b334a45a8ff	1241	UART_EndTransmit_IT(huart);
bogdanm	0:9b334a45a8ff	1242	}
bogdanm	0:9b334a45a8ff	1243
bogdanm	0:9b334a45a8ff	1244	if(huart->ErrorCode != HAL_UART_ERROR_NONE)
bogdanm	0:9b334a45a8ff	1245	{
bogdanm	0:9b334a45a8ff	1246	/* Set the UART state ready to be able to start again the process */
bogdanm	0:9b334a45a8ff	1247	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1248
bogdanm	0:9b334a45a8ff	1249	HAL_UART_ErrorCallback(huart);
bogdanm	0:9b334a45a8ff	1250	}
bogdanm	0:9b334a45a8ff	1251	}
bogdanm	0:9b334a45a8ff	1252
bogdanm	0:9b334a45a8ff	1253	/**
bogdanm	0:9b334a45a8ff	1254	* @brief Tx Transfer completed callbacks.
bogdanm	0:9b334a45a8ff	1255	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1256	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1257	* @retval None
bogdanm	0:9b334a45a8ff	1258	*/
bogdanm	0:9b334a45a8ff	1259	__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1260	{
bogdanm	0:9b334a45a8ff	1261	/* NOTE: This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1262	the HAL_UART_TxCpltCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1263	*/
bogdanm	0:9b334a45a8ff	1264	}
bogdanm	0:9b334a45a8ff	1265
bogdanm	0:9b334a45a8ff	1266	/**
bogdanm	0:9b334a45a8ff	1267	* @brief Tx Half Transfer completed callbacks.
bogdanm	0:9b334a45a8ff	1268	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1269	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1270	* @retval None
bogdanm	0:9b334a45a8ff	1271	*/
bogdanm	0:9b334a45a8ff	1272	__weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1273	{
bogdanm	0:9b334a45a8ff	1274	/* NOTE: This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1275	the HAL_UART_TxHalfCpltCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1276	*/
bogdanm	0:9b334a45a8ff	1277	}
bogdanm	0:9b334a45a8ff	1278
bogdanm	0:9b334a45a8ff	1279	/**
bogdanm	0:9b334a45a8ff	1280	* @brief Rx Transfer completed callbacks.
bogdanm	0:9b334a45a8ff	1281	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1282	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1283	* @retval None
bogdanm	0:9b334a45a8ff	1284	*/
bogdanm	0:9b334a45a8ff	1285	__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1286	{
bogdanm	0:9b334a45a8ff	1287	/* NOTE: This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1288	the HAL_UART_RxCpltCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1289	*/
bogdanm	0:9b334a45a8ff	1290	}
bogdanm	0:9b334a45a8ff	1291
bogdanm	0:9b334a45a8ff	1292	/**
bogdanm	0:9b334a45a8ff	1293	* @brief Rx Half Transfer completed callbacks.
bogdanm	0:9b334a45a8ff	1294	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1295	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1296	* @retval None
bogdanm	0:9b334a45a8ff	1297	*/
bogdanm	0:9b334a45a8ff	1298	__weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1299	{
bogdanm	0:9b334a45a8ff	1300	/* NOTE: This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1301	the HAL_UART_RxHalfCpltCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1302	*/
bogdanm	0:9b334a45a8ff	1303	}
bogdanm	0:9b334a45a8ff	1304
bogdanm	0:9b334a45a8ff	1305	/**
bogdanm	0:9b334a45a8ff	1306	* @brief UART error callbacks.
bogdanm	0:9b334a45a8ff	1307	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1308	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1309	* @retval None
bogdanm	0:9b334a45a8ff	1310	*/
bogdanm	0:9b334a45a8ff	1311	__weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1312	{
bogdanm	0:9b334a45a8ff	1313	/* NOTE: This function Should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1314	the HAL_UART_ErrorCallback could be implemented in the user file
bogdanm	0:9b334a45a8ff	1315	*/
bogdanm	0:9b334a45a8ff	1316	}
bogdanm	0:9b334a45a8ff	1317
bogdanm	0:9b334a45a8ff	1318	/**
bogdanm	0:9b334a45a8ff	1319	* @}
bogdanm	0:9b334a45a8ff	1320	*/
bogdanm	0:9b334a45a8ff	1321
bogdanm	0:9b334a45a8ff	1322	/** @defgroup UART_Exported_Functions_Group3 Peripheral Control functions
bogdanm	0:9b334a45a8ff	1323	* @brief UART control functions
bogdanm	0:9b334a45a8ff	1324	*
bogdanm	0:9b334a45a8ff	1325	@verbatim
bogdanm	0:9b334a45a8ff	1326	==============================================================================
bogdanm	0:9b334a45a8ff	1327	##### Peripheral Control functions #####
bogdanm	0:9b334a45a8ff	1328	==============================================================================
bogdanm	0:9b334a45a8ff	1329	[..]
bogdanm	0:9b334a45a8ff	1330	This subsection provides a set of functions allowing to control the UART:
bogdanm	0:9b334a45a8ff	1331	(+) HAL_LIN_SendBreak() API can be helpful to transmit the break character.
bogdanm	0:9b334a45a8ff	1332	(+) HAL_MultiProcessor_EnterMuteMode() API can be helpful to enter the UART in mute mode.
bogdanm	0:9b334a45a8ff	1333	(+) HAL_MultiProcessor_ExitMuteMode() API can be helpful to exit the UART mute mode by software.
bogdanm	0:9b334a45a8ff	1334	(+) HAL_HalfDuplex_EnableTransmitter() API to enable the UART transmitter and disables the UART receiver in Half Duplex mode
bogdanm	0:9b334a45a8ff	1335	(+) HAL_HalfDuplex_EnableReceiver() API to enable the UART receiver and disables the UART transmitter in Half Duplex mode
bogdanm	0:9b334a45a8ff	1336
bogdanm	0:9b334a45a8ff	1337	@endverbatim
bogdanm	0:9b334a45a8ff	1338	* @{
bogdanm	0:9b334a45a8ff	1339	*/
bogdanm	0:9b334a45a8ff	1340
bogdanm	0:9b334a45a8ff	1341	/**
bogdanm	0:9b334a45a8ff	1342	* @brief Transmits break characters.
bogdanm	0:9b334a45a8ff	1343	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1344	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1345	* @retval HAL status
bogdanm	0:9b334a45a8ff	1346	*/
bogdanm	0:9b334a45a8ff	1347	HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1348	{
bogdanm	0:9b334a45a8ff	1349	/* Check the parameters */
bogdanm	0:9b334a45a8ff	1350	assert_param(IS_UART_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	1351
bogdanm	0:9b334a45a8ff	1352	/* Process Locked */
bogdanm	0:9b334a45a8ff	1353	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	1354
bogdanm	0:9b334a45a8ff	1355	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	1356
bogdanm	0:9b334a45a8ff	1357	/* Send break characters */
bogdanm	0:9b334a45a8ff	1358	huart->Instance->CR1 \|= USART_CR1_SBK;
bogdanm	0:9b334a45a8ff	1359
bogdanm	0:9b334a45a8ff	1360	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1361
bogdanm	0:9b334a45a8ff	1362	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1363	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1364
bogdanm	0:9b334a45a8ff	1365	return HAL_OK;
bogdanm	0:9b334a45a8ff	1366	}
bogdanm	0:9b334a45a8ff	1367
bogdanm	0:9b334a45a8ff	1368	/**
bogdanm	0:9b334a45a8ff	1369	* @brief Enters the UART in mute mode.
bogdanm	0:9b334a45a8ff	1370	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1371	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1372	* @retval HAL status
bogdanm	0:9b334a45a8ff	1373	*/
bogdanm	0:9b334a45a8ff	1374	HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1375	{
bogdanm	0:9b334a45a8ff	1376	/* Check the parameters */
bogdanm	0:9b334a45a8ff	1377	assert_param(IS_UART_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	1378
bogdanm	0:9b334a45a8ff	1379	/* Process Locked */
bogdanm	0:9b334a45a8ff	1380	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	1381
bogdanm	0:9b334a45a8ff	1382	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	1383
bogdanm	0:9b334a45a8ff	1384	/* Enable the USART mute mode by setting the RWU bit in the CR1 register */
bogdanm	0:9b334a45a8ff	1385	huart->Instance->CR1 \|= USART_CR1_RWU;
bogdanm	0:9b334a45a8ff	1386
bogdanm	0:9b334a45a8ff	1387	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1388
bogdanm	0:9b334a45a8ff	1389	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1390	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1391
bogdanm	0:9b334a45a8ff	1392	return HAL_OK;
bogdanm	0:9b334a45a8ff	1393	}
bogdanm	0:9b334a45a8ff	1394
bogdanm	0:9b334a45a8ff	1395	/**
bogdanm	0:9b334a45a8ff	1396	* @brief Exits the UART mute mode: wake up software.
bogdanm	0:9b334a45a8ff	1397	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1398	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1399	* @retval HAL status
bogdanm	0:9b334a45a8ff	1400	*/
bogdanm	0:9b334a45a8ff	1401	HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1402	{
bogdanm	0:9b334a45a8ff	1403	/* Check the parameters */
bogdanm	0:9b334a45a8ff	1404	assert_param(IS_UART_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	1405
bogdanm	0:9b334a45a8ff	1406	/* Process Locked */
bogdanm	0:9b334a45a8ff	1407	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	1408
bogdanm	0:9b334a45a8ff	1409	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	1410
bogdanm	0:9b334a45a8ff	1411	/* Disable the USART mute mode by clearing the RWU bit in the CR1 register */
bogdanm	0:9b334a45a8ff	1412	huart->Instance->CR1 &= (uint32_t)~((uint32_t)USART_CR1_RWU);
bogdanm	0:9b334a45a8ff	1413
bogdanm	0:9b334a45a8ff	1414	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1415
bogdanm	0:9b334a45a8ff	1416	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1417	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1418
bogdanm	0:9b334a45a8ff	1419	return HAL_OK;
bogdanm	0:9b334a45a8ff	1420	}
bogdanm	0:9b334a45a8ff	1421
bogdanm	0:9b334a45a8ff	1422	/**
bogdanm	0:9b334a45a8ff	1423	* @brief Enables the UART transmitter and disables the UART receiver.
bogdanm	0:9b334a45a8ff	1424	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1425	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1426	* @retval HAL status
bogdanm	0:9b334a45a8ff	1427	*/
bogdanm	0:9b334a45a8ff	1428	HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1429	{
bogdanm	0:9b334a45a8ff	1430	uint32_t tmpreg = 0x00;
bogdanm	0:9b334a45a8ff	1431
bogdanm	0:9b334a45a8ff	1432	/* Process Locked */
bogdanm	0:9b334a45a8ff	1433	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	1434
bogdanm	0:9b334a45a8ff	1435	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	1436
bogdanm	0:9b334a45a8ff	1437	/-------------------------- USART CR1 Configuration -----------------------/
bogdanm	0:9b334a45a8ff	1438	tmpreg = huart->Instance->CR1;
bogdanm	0:9b334a45a8ff	1439
bogdanm	0:9b334a45a8ff	1440	/* Clear TE and RE bits */
bogdanm	0:9b334a45a8ff	1441	tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_TE \| USART_CR1_RE));
bogdanm	0:9b334a45a8ff	1442
bogdanm	0:9b334a45a8ff	1443	/* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
bogdanm	0:9b334a45a8ff	1444	tmpreg \|= (uint32_t)USART_CR1_TE;
bogdanm	0:9b334a45a8ff	1445
bogdanm	0:9b334a45a8ff	1446	/* Write to USART CR1 */
bogdanm	0:9b334a45a8ff	1447	huart->Instance->CR1 = (uint32_t)tmpreg;
bogdanm	0:9b334a45a8ff	1448
bogdanm	0:9b334a45a8ff	1449	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1450
bogdanm	0:9b334a45a8ff	1451	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1452	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1453
bogdanm	0:9b334a45a8ff	1454	return HAL_OK;
bogdanm	0:9b334a45a8ff	1455	}
bogdanm	0:9b334a45a8ff	1456
bogdanm	0:9b334a45a8ff	1457	/**
bogdanm	0:9b334a45a8ff	1458	* @brief Enables the UART receiver and disables the UART transmitter.
bogdanm	0:9b334a45a8ff	1459	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1460	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1461	* @retval HAL status
bogdanm	0:9b334a45a8ff	1462	*/
bogdanm	0:9b334a45a8ff	1463	HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1464	{
bogdanm	0:9b334a45a8ff	1465	uint32_t tmpreg = 0x00;
bogdanm	0:9b334a45a8ff	1466
bogdanm	0:9b334a45a8ff	1467	/* Process Locked */
bogdanm	0:9b334a45a8ff	1468	__HAL_LOCK(huart);
bogdanm	0:9b334a45a8ff	1469
bogdanm	0:9b334a45a8ff	1470	huart->State = HAL_UART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	1471
bogdanm	0:9b334a45a8ff	1472	/-------------------------- USART CR1 Configuration -----------------------/
bogdanm	0:9b334a45a8ff	1473	tmpreg = huart->Instance->CR1;
bogdanm	0:9b334a45a8ff	1474
bogdanm	0:9b334a45a8ff	1475	/* Clear TE and RE bits */
bogdanm	0:9b334a45a8ff	1476	tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_TE \| USART_CR1_RE));
bogdanm	0:9b334a45a8ff	1477
bogdanm	0:9b334a45a8ff	1478	/* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
bogdanm	0:9b334a45a8ff	1479	tmpreg \|= (uint32_t)USART_CR1_RE;
bogdanm	0:9b334a45a8ff	1480
bogdanm	0:9b334a45a8ff	1481	/* Write to USART CR1 */
bogdanm	0:9b334a45a8ff	1482	huart->Instance->CR1 = (uint32_t)tmpreg;
bogdanm	0:9b334a45a8ff	1483
bogdanm	0:9b334a45a8ff	1484	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1485
bogdanm	0:9b334a45a8ff	1486	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1487	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1488
bogdanm	0:9b334a45a8ff	1489	return HAL_OK;
bogdanm	0:9b334a45a8ff	1490	}
bogdanm	0:9b334a45a8ff	1491
bogdanm	0:9b334a45a8ff	1492	/**
bogdanm	0:9b334a45a8ff	1493	* @}
bogdanm	0:9b334a45a8ff	1494	*/
bogdanm	0:9b334a45a8ff	1495
bogdanm	0:9b334a45a8ff	1496	/** @defgroup UART_Exported_Functions_Group4 Peripheral State and Errors functions
bogdanm	0:9b334a45a8ff	1497	* @brief UART State and Errors functions
bogdanm	0:9b334a45a8ff	1498	*
bogdanm	0:9b334a45a8ff	1499	@verbatim
bogdanm	0:9b334a45a8ff	1500	==============================================================================
bogdanm	0:9b334a45a8ff	1501	##### Peripheral State and Errors functions #####
bogdanm	0:9b334a45a8ff	1502	==============================================================================
bogdanm	0:9b334a45a8ff	1503	[..]
bogdanm	0:9b334a45a8ff	1504	This subsection provides a set of functions allowing to return the State of
bogdanm	0:9b334a45a8ff	1505	UART communication process, return Peripheral Errors occurred during communication
bogdanm	0:9b334a45a8ff	1506	process
bogdanm	0:9b334a45a8ff	1507	(+) HAL_UART_GetState() API can be helpful to check in run-time the state of the UART peripheral.
bogdanm	0:9b334a45a8ff	1508	(+) HAL_UART_GetError() check in run-time errors that could be occurred during communication.
bogdanm	0:9b334a45a8ff	1509
bogdanm	0:9b334a45a8ff	1510	@endverbatim
bogdanm	0:9b334a45a8ff	1511	* @{
bogdanm	0:9b334a45a8ff	1512	*/
bogdanm	0:9b334a45a8ff	1513
bogdanm	0:9b334a45a8ff	1514	/**
bogdanm	0:9b334a45a8ff	1515	* @brief Returns the UART state.
bogdanm	0:9b334a45a8ff	1516	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1517	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1518	* @retval HAL state
bogdanm	0:9b334a45a8ff	1519	*/
bogdanm	0:9b334a45a8ff	1520	HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1521	{
bogdanm	0:9b334a45a8ff	1522	return huart->State;
bogdanm	0:9b334a45a8ff	1523	}
bogdanm	0:9b334a45a8ff	1524
bogdanm	0:9b334a45a8ff	1525	/**
bogdanm	0:9b334a45a8ff	1526	* @brief Return the UART error code
bogdanm	0:9b334a45a8ff	1527	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1528	* the configuration information for the specified UART.
bogdanm	0:9b334a45a8ff	1529	* @retval UART Error Code
bogdanm	0:9b334a45a8ff	1530	*/
bogdanm	0:9b334a45a8ff	1531	uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1532	{
bogdanm	0:9b334a45a8ff	1533	return huart->ErrorCode;
bogdanm	0:9b334a45a8ff	1534	}
bogdanm	0:9b334a45a8ff	1535
bogdanm	0:9b334a45a8ff	1536	/**
bogdanm	0:9b334a45a8ff	1537	* @}
bogdanm	0:9b334a45a8ff	1538	*/
bogdanm	0:9b334a45a8ff	1539
bogdanm	0:9b334a45a8ff	1540	/**
bogdanm	0:9b334a45a8ff	1541	* @}
bogdanm	0:9b334a45a8ff	1542	*/
bogdanm	0:9b334a45a8ff	1543
bogdanm	0:9b334a45a8ff	1544	/** @defgroup UART_Private_Functions UART Private Functions
bogdanm	0:9b334a45a8ff	1545	* @brief UART Private functions
bogdanm	0:9b334a45a8ff	1546	* @{
bogdanm	0:9b334a45a8ff	1547	*/
bogdanm	0:9b334a45a8ff	1548	/**
bogdanm	0:9b334a45a8ff	1549	* @brief DMA UART transmit process complete callback.
bogdanm	0:9b334a45a8ff	1550	* @param hdma: Pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1551	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1552	* @retval None
bogdanm	0:9b334a45a8ff	1553	*/
bogdanm	0:9b334a45a8ff	1554	static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1555	{
bogdanm	0:9b334a45a8ff	1556	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm	0:9b334a45a8ff	1557	/* DMA Normal mode*/
bogdanm	0:9b334a45a8ff	1558	if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
bogdanm	0:9b334a45a8ff	1559	{
bogdanm	0:9b334a45a8ff	1560	huart->TxXferCount = 0;
bogdanm	0:9b334a45a8ff	1561
bogdanm	0:9b334a45a8ff	1562	/* Disable the DMA transfer for transmit request by setting the DMAT bit
bogdanm	0:9b334a45a8ff	1563	in the UART CR3 register */
bogdanm	0:9b334a45a8ff	1564	huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT);
bogdanm	0:9b334a45a8ff	1565
bogdanm	0:9b334a45a8ff	1566	/* Wait for UART TC Flag */
bogdanm	0:9b334a45a8ff	1567	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, UART_TIMEOUT_VALUE) != HAL_OK)
bogdanm	0:9b334a45a8ff	1568	{
bogdanm	0:9b334a45a8ff	1569	/* Timeout occurred */
bogdanm	0:9b334a45a8ff	1570	huart->State = HAL_UART_STATE_TIMEOUT;
bogdanm	0:9b334a45a8ff	1571	HAL_UART_ErrorCallback(huart);
bogdanm	0:9b334a45a8ff	1572	}
bogdanm	0:9b334a45a8ff	1573	else
bogdanm	0:9b334a45a8ff	1574	{
bogdanm	0:9b334a45a8ff	1575	/* No Timeout */
bogdanm	0:9b334a45a8ff	1576	/* Check if a receive process is ongoing or not */
bogdanm	0:9b334a45a8ff	1577	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	1578	{
bogdanm	0:9b334a45a8ff	1579	huart->State = HAL_UART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	1580	}
bogdanm	0:9b334a45a8ff	1581	else
bogdanm	0:9b334a45a8ff	1582	{
bogdanm	0:9b334a45a8ff	1583	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1584	}
bogdanm	0:9b334a45a8ff	1585	HAL_UART_TxCpltCallback(huart);
bogdanm	0:9b334a45a8ff	1586	}
bogdanm	0:9b334a45a8ff	1587	}
bogdanm	0:9b334a45a8ff	1588	/* DMA Circular mode */
bogdanm	0:9b334a45a8ff	1589	else
bogdanm	0:9b334a45a8ff	1590	{
bogdanm	0:9b334a45a8ff	1591	HAL_UART_TxCpltCallback(huart);
bogdanm	0:9b334a45a8ff	1592	}
bogdanm	0:9b334a45a8ff	1593	}
bogdanm	0:9b334a45a8ff	1594
bogdanm	0:9b334a45a8ff	1595	/**
bogdanm	0:9b334a45a8ff	1596	* @brief DMA UART transmit process half complete callback
bogdanm	0:9b334a45a8ff	1597	* @param hdma: Pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1598	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1599	* @retval None
bogdanm	0:9b334a45a8ff	1600	*/
bogdanm	0:9b334a45a8ff	1601	static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1602	{
bogdanm	0:9b334a45a8ff	1603	UART_HandleTypeDef* huart = (UART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
bogdanm	0:9b334a45a8ff	1604
bogdanm	0:9b334a45a8ff	1605	HAL_UART_TxHalfCpltCallback(huart);
bogdanm	0:9b334a45a8ff	1606	}
bogdanm	0:9b334a45a8ff	1607
bogdanm	0:9b334a45a8ff	1608	/**
bogdanm	0:9b334a45a8ff	1609	* @brief DMA UART receive process complete callback.
bogdanm	0:9b334a45a8ff	1610	* @param hdma: Pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1611	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1612	* @retval None
bogdanm	0:9b334a45a8ff	1613	*/
bogdanm	0:9b334a45a8ff	1614	static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1615	{
bogdanm	0:9b334a45a8ff	1616	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm	0:9b334a45a8ff	1617	/* DMA Normal mode*/
bogdanm	0:9b334a45a8ff	1618	if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
bogdanm	0:9b334a45a8ff	1619	{
bogdanm	0:9b334a45a8ff	1620	huart->RxXferCount = 0;
bogdanm	0:9b334a45a8ff	1621
bogdanm	0:9b334a45a8ff	1622	/* Disable the DMA transfer for the receiver request by setting the DMAR bit
bogdanm	0:9b334a45a8ff	1623	in the UART CR3 register */
bogdanm	0:9b334a45a8ff	1624	huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAR);
bogdanm	0:9b334a45a8ff	1625
bogdanm	0:9b334a45a8ff	1626	/* Check if a transmit process is ongoing or not */
bogdanm	0:9b334a45a8ff	1627	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	1628	{
bogdanm	0:9b334a45a8ff	1629	huart->State = HAL_UART_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	1630	}
bogdanm	0:9b334a45a8ff	1631	else
bogdanm	0:9b334a45a8ff	1632	{
bogdanm	0:9b334a45a8ff	1633	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1634	}
bogdanm	0:9b334a45a8ff	1635	}
bogdanm	0:9b334a45a8ff	1636	HAL_UART_RxCpltCallback(huart);
bogdanm	0:9b334a45a8ff	1637	}
bogdanm	0:9b334a45a8ff	1638
bogdanm	0:9b334a45a8ff	1639	/**
bogdanm	0:9b334a45a8ff	1640	* @brief DMA UART receive process half complete callback
bogdanm	0:9b334a45a8ff	1641	* @param hdma: Pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1642	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1643	* @retval None
bogdanm	0:9b334a45a8ff	1644	*/
bogdanm	0:9b334a45a8ff	1645	static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1646	{
bogdanm	0:9b334a45a8ff	1647	UART_HandleTypeDef* huart = (UART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
bogdanm	0:9b334a45a8ff	1648
bogdanm	0:9b334a45a8ff	1649	HAL_UART_RxHalfCpltCallback(huart);
bogdanm	0:9b334a45a8ff	1650	}
bogdanm	0:9b334a45a8ff	1651
bogdanm	0:9b334a45a8ff	1652	/**
bogdanm	0:9b334a45a8ff	1653	* @brief DMA UART communication error callback.
bogdanm	0:9b334a45a8ff	1654	* @param hdma: Pointer to a DMA_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1655	* the configuration information for the specified DMA module.
bogdanm	0:9b334a45a8ff	1656	* @retval None
bogdanm	0:9b334a45a8ff	1657	*/
bogdanm	0:9b334a45a8ff	1658	static void UART_DMAError(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1659	{
bogdanm	0:9b334a45a8ff	1660	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm	0:9b334a45a8ff	1661	huart->RxXferCount = 0;
bogdanm	0:9b334a45a8ff	1662	huart->TxXferCount = 0;
bogdanm	0:9b334a45a8ff	1663	huart->State= HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1664	huart->ErrorCode \|= HAL_UART_ERROR_DMA;
bogdanm	0:9b334a45a8ff	1665	HAL_UART_ErrorCallback(huart);
bogdanm	0:9b334a45a8ff	1666	}
bogdanm	0:9b334a45a8ff	1667
bogdanm	0:9b334a45a8ff	1668	/**
bogdanm	0:9b334a45a8ff	1669	* @brief This function handles UART Communication Timeout.
bogdanm	0:9b334a45a8ff	1670	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1671	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1672	* @param Flag: specifies the UART flag to check.
bogdanm	0:9b334a45a8ff	1673	* @param Status: The new Flag status (SET or RESET).
bogdanm	0:9b334a45a8ff	1674	* @param Timeout: Timeout duration
bogdanm	0:9b334a45a8ff	1675	* @retval HAL status
bogdanm	0:9b334a45a8ff	1676	*/
bogdanm	0:9b334a45a8ff	1677	static HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
bogdanm	0:9b334a45a8ff	1678	{
bogdanm	0:9b334a45a8ff	1679	uint32_t tickstart = 0;
bogdanm	0:9b334a45a8ff	1680
bogdanm	0:9b334a45a8ff	1681	/* Get tick */
bogdanm	0:9b334a45a8ff	1682	tickstart = HAL_GetTick();
bogdanm	0:9b334a45a8ff	1683
bogdanm	0:9b334a45a8ff	1684	/* Wait until flag is set */
bogdanm	0:9b334a45a8ff	1685	if(Status == RESET)
bogdanm	0:9b334a45a8ff	1686	{
bogdanm	0:9b334a45a8ff	1687	while(__HAL_UART_GET_FLAG(huart, Flag) == RESET)
bogdanm	0:9b334a45a8ff	1688	{
bogdanm	0:9b334a45a8ff	1689	/* Check for the Timeout */
bogdanm	0:9b334a45a8ff	1690	if(Timeout != HAL_MAX_DELAY)
bogdanm	0:9b334a45a8ff	1691	{
bogdanm	0:9b334a45a8ff	1692	if((Timeout == 0)\|\|((HAL_GetTick() - tickstart ) > Timeout))
bogdanm	0:9b334a45a8ff	1693	{
bogdanm	0:9b334a45a8ff	1694	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
bogdanm	0:9b334a45a8ff	1695	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
bogdanm	0:9b334a45a8ff	1696	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
bogdanm	0:9b334a45a8ff	1697	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
bogdanm	0:9b334a45a8ff	1698	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
bogdanm	0:9b334a45a8ff	1699
bogdanm	0:9b334a45a8ff	1700	huart->State= HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1701
bogdanm	0:9b334a45a8ff	1702	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1703	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1704
bogdanm	0:9b334a45a8ff	1705	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	1706	}
bogdanm	0:9b334a45a8ff	1707	}
bogdanm	0:9b334a45a8ff	1708	}
bogdanm	0:9b334a45a8ff	1709	}
bogdanm	0:9b334a45a8ff	1710	else
bogdanm	0:9b334a45a8ff	1711	{
bogdanm	0:9b334a45a8ff	1712	while(__HAL_UART_GET_FLAG(huart, Flag) != RESET)
bogdanm	0:9b334a45a8ff	1713	{
bogdanm	0:9b334a45a8ff	1714	/* Check for the Timeout */
bogdanm	0:9b334a45a8ff	1715	if(Timeout != HAL_MAX_DELAY)
bogdanm	0:9b334a45a8ff	1716	{
bogdanm	0:9b334a45a8ff	1717	if((Timeout == 0)\|\|((HAL_GetTick() - tickstart ) > Timeout))
bogdanm	0:9b334a45a8ff	1718	{
bogdanm	0:9b334a45a8ff	1719	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
bogdanm	0:9b334a45a8ff	1720	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
bogdanm	0:9b334a45a8ff	1721	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
bogdanm	0:9b334a45a8ff	1722	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
bogdanm	0:9b334a45a8ff	1723	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
bogdanm	0:9b334a45a8ff	1724
bogdanm	0:9b334a45a8ff	1725	huart->State= HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1726
bogdanm	0:9b334a45a8ff	1727	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1728	__HAL_UNLOCK(huart);
bogdanm	0:9b334a45a8ff	1729
bogdanm	0:9b334a45a8ff	1730	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	1731	}
bogdanm	0:9b334a45a8ff	1732	}
bogdanm	0:9b334a45a8ff	1733	}
bogdanm	0:9b334a45a8ff	1734	}
bogdanm	0:9b334a45a8ff	1735	return HAL_OK;
bogdanm	0:9b334a45a8ff	1736	}
bogdanm	0:9b334a45a8ff	1737
bogdanm	0:9b334a45a8ff	1738	/**
bogdanm	0:9b334a45a8ff	1739	* @brief Sends an amount of data in non blocking mode.
bogdanm	0:9b334a45a8ff	1740	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1741	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1742	* @retval HAL status
bogdanm	0:9b334a45a8ff	1743	*/
bogdanm	0:9b334a45a8ff	1744	static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1745	{
bogdanm	0:9b334a45a8ff	1746	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	1747	uint32_t tmp1 = 0;
bogdanm	0:9b334a45a8ff	1748
bogdanm	0:9b334a45a8ff	1749	tmp1 = huart->State;
bogdanm	0:9b334a45a8ff	1750	if((tmp1 == HAL_UART_STATE_BUSY_TX) \|\| (tmp1 == HAL_UART_STATE_BUSY_TX_RX))
bogdanm	0:9b334a45a8ff	1751	{
bogdanm	0:9b334a45a8ff	1752	if(huart->Init.WordLength == UART_WORDLENGTH_9B)
bogdanm	0:9b334a45a8ff	1753	{
bogdanm	0:9b334a45a8ff	1754	tmp = (uint16_t*) huart->pTxBuffPtr;
bogdanm	0:9b334a45a8ff	1755	huart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
bogdanm	0:9b334a45a8ff	1756	if(huart->Init.Parity == UART_PARITY_NONE)
bogdanm	0:9b334a45a8ff	1757	{
bogdanm	0:9b334a45a8ff	1758	huart->pTxBuffPtr += 2;
bogdanm	0:9b334a45a8ff	1759	}
bogdanm	0:9b334a45a8ff	1760	else
bogdanm	0:9b334a45a8ff	1761	{
bogdanm	0:9b334a45a8ff	1762	huart->pTxBuffPtr += 1;
bogdanm	0:9b334a45a8ff	1763	}
bogdanm	0:9b334a45a8ff	1764	}
bogdanm	0:9b334a45a8ff	1765	else
bogdanm	0:9b334a45a8ff	1766	{
bogdanm	0:9b334a45a8ff	1767	huart->Instance->DR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0x00FF);
bogdanm	0:9b334a45a8ff	1768	}
bogdanm	0:9b334a45a8ff	1769
bogdanm	0:9b334a45a8ff	1770	if(--huart->TxXferCount == 0)
bogdanm	0:9b334a45a8ff	1771	{
bogdanm	0:9b334a45a8ff	1772	/* Disable the UART Transmit Complete Interrupt */
bogdanm	0:9b334a45a8ff	1773	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
bogdanm	0:9b334a45a8ff	1774
bogdanm	0:9b334a45a8ff	1775	/* Enable the UART Transmit Complete Interrupt */
bogdanm	0:9b334a45a8ff	1776	__HAL_UART_ENABLE_IT(huart, UART_IT_TC);
bogdanm	0:9b334a45a8ff	1777	}
bogdanm	0:9b334a45a8ff	1778	return HAL_OK;
bogdanm	0:9b334a45a8ff	1779	}
bogdanm	0:9b334a45a8ff	1780	else
bogdanm	0:9b334a45a8ff	1781	{
bogdanm	0:9b334a45a8ff	1782	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	1783	}
bogdanm	0:9b334a45a8ff	1784	}
bogdanm	0:9b334a45a8ff	1785
bogdanm	0:9b334a45a8ff	1786
bogdanm	0:9b334a45a8ff	1787	/**
bogdanm	0:9b334a45a8ff	1788	* @brief Wraps up transmission in non blocking mode.
bogdanm	0:9b334a45a8ff	1789	* @param huart: pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1790	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1791	* @retval HAL status
bogdanm	0:9b334a45a8ff	1792	*/
bogdanm	0:9b334a45a8ff	1793	static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1794	{
bogdanm	0:9b334a45a8ff	1795	/* Disable the UART Transmit Complete Interrupt */
bogdanm	0:9b334a45a8ff	1796	__HAL_UART_DISABLE_IT(huart, UART_IT_TC);
bogdanm	0:9b334a45a8ff	1797
bogdanm	0:9b334a45a8ff	1798	/* Check if a receive process is ongoing or not */
bogdanm	0:9b334a45a8ff	1799	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	1800	{
bogdanm	0:9b334a45a8ff	1801	huart->State = HAL_UART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	1802	}
bogdanm	0:9b334a45a8ff	1803	else
bogdanm	0:9b334a45a8ff	1804	{
bogdanm	0:9b334a45a8ff	1805	/* Disable the UART Parity Error Interrupt */
bogdanm	0:9b334a45a8ff	1806	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
bogdanm	0:9b334a45a8ff	1807
bogdanm	0:9b334a45a8ff	1808	/* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm	0:9b334a45a8ff	1809	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
bogdanm	0:9b334a45a8ff	1810
bogdanm	0:9b334a45a8ff	1811	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1812	}
bogdanm	0:9b334a45a8ff	1813
bogdanm	0:9b334a45a8ff	1814	HAL_UART_TxCpltCallback(huart);
bogdanm	0:9b334a45a8ff	1815
bogdanm	0:9b334a45a8ff	1816	return HAL_OK;
bogdanm	0:9b334a45a8ff	1817	}
bogdanm	0:9b334a45a8ff	1818
bogdanm	0:9b334a45a8ff	1819	/**
bogdanm	0:9b334a45a8ff	1820	* @brief Receives an amount of data in non blocking mode
bogdanm	0:9b334a45a8ff	1821	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1822	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1823	* @retval HAL status
bogdanm	0:9b334a45a8ff	1824	*/
bogdanm	0:9b334a45a8ff	1825	static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1826	{
bogdanm	0:9b334a45a8ff	1827	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	1828	uint32_t tmp1 = 0;
bogdanm	0:9b334a45a8ff	1829
bogdanm	0:9b334a45a8ff	1830	tmp1 = huart->State;
bogdanm	0:9b334a45a8ff	1831	if((tmp1 == HAL_UART_STATE_BUSY_RX) \|\| (tmp1 == HAL_UART_STATE_BUSY_TX_RX))
bogdanm	0:9b334a45a8ff	1832	{
bogdanm	0:9b334a45a8ff	1833	if(huart->Init.WordLength == UART_WORDLENGTH_9B)
bogdanm	0:9b334a45a8ff	1834	{
bogdanm	0:9b334a45a8ff	1835	tmp = (uint16_t*) huart->pRxBuffPtr;
bogdanm	0:9b334a45a8ff	1836	if(huart->Init.Parity == UART_PARITY_NONE)
bogdanm	0:9b334a45a8ff	1837	{
bogdanm	0:9b334a45a8ff	1838	*tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x01FF);
bogdanm	0:9b334a45a8ff	1839	huart->pRxBuffPtr += 2;
bogdanm	0:9b334a45a8ff	1840	}
bogdanm	0:9b334a45a8ff	1841	else
bogdanm	0:9b334a45a8ff	1842	{
bogdanm	0:9b334a45a8ff	1843	*tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x00FF);
bogdanm	0:9b334a45a8ff	1844	huart->pRxBuffPtr += 1;
bogdanm	0:9b334a45a8ff	1845	}
bogdanm	0:9b334a45a8ff	1846	}
bogdanm	0:9b334a45a8ff	1847	else
bogdanm	0:9b334a45a8ff	1848	{
bogdanm	0:9b334a45a8ff	1849	if(huart->Init.Parity == UART_PARITY_NONE)
bogdanm	0:9b334a45a8ff	1850	{
bogdanm	0:9b334a45a8ff	1851	*huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x00FF);
bogdanm	0:9b334a45a8ff	1852	}
bogdanm	0:9b334a45a8ff	1853	else
bogdanm	0:9b334a45a8ff	1854	{
bogdanm	0:9b334a45a8ff	1855	*huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x007F);
bogdanm	0:9b334a45a8ff	1856	}
bogdanm	0:9b334a45a8ff	1857	}
bogdanm	0:9b334a45a8ff	1858
bogdanm	0:9b334a45a8ff	1859	if(--huart->RxXferCount == 0)
bogdanm	0:9b334a45a8ff	1860	{
bogdanm	0:9b334a45a8ff	1861	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
bogdanm	0:9b334a45a8ff	1862
bogdanm	0:9b334a45a8ff	1863	/* Check if a transmit process is ongoing or not */
bogdanm	0:9b334a45a8ff	1864	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	1865	{
bogdanm	0:9b334a45a8ff	1866	huart->State = HAL_UART_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	1867	}
bogdanm	0:9b334a45a8ff	1868	else
bogdanm	0:9b334a45a8ff	1869	{
bogdanm	0:9b334a45a8ff	1870	/* Disable the UART Parity Error Interrupt */
bogdanm	0:9b334a45a8ff	1871	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
bogdanm	0:9b334a45a8ff	1872
bogdanm	0:9b334a45a8ff	1873	/* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm	0:9b334a45a8ff	1874	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
bogdanm	0:9b334a45a8ff	1875
bogdanm	0:9b334a45a8ff	1876	huart->State = HAL_UART_STATE_READY;
bogdanm	0:9b334a45a8ff	1877	}
bogdanm	0:9b334a45a8ff	1878	HAL_UART_RxCpltCallback(huart);
bogdanm	0:9b334a45a8ff	1879
bogdanm	0:9b334a45a8ff	1880	return HAL_OK;
bogdanm	0:9b334a45a8ff	1881	}
bogdanm	0:9b334a45a8ff	1882	return HAL_OK;
bogdanm	0:9b334a45a8ff	1883	}
bogdanm	0:9b334a45a8ff	1884	else
bogdanm	0:9b334a45a8ff	1885	{
bogdanm	0:9b334a45a8ff	1886	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	1887	}
bogdanm	0:9b334a45a8ff	1888	}
bogdanm	0:9b334a45a8ff	1889
bogdanm	0:9b334a45a8ff	1890	/**
bogdanm	0:9b334a45a8ff	1891	* @brief Configures the UART peripheral.
bogdanm	0:9b334a45a8ff	1892	* @param huart: Pointer to a UART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1893	* the configuration information for the specified UART module.
bogdanm	0:9b334a45a8ff	1894	* @retval None
bogdanm	0:9b334a45a8ff	1895	*/
bogdanm	0:9b334a45a8ff	1896	static void UART_SetConfig(UART_HandleTypeDef *huart)
bogdanm	0:9b334a45a8ff	1897	{
bogdanm	0:9b334a45a8ff	1898	uint32_t tmpreg = 0x00;
bogdanm	0:9b334a45a8ff	1899
bogdanm	0:9b334a45a8ff	1900	/* Check the parameters */
bogdanm	0:9b334a45a8ff	1901	assert_param(IS_UART_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	1902	assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
bogdanm	0:9b334a45a8ff	1903	assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
bogdanm	0:9b334a45a8ff	1904	assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
bogdanm	0:9b334a45a8ff	1905	assert_param(IS_UART_PARITY(huart->Init.Parity));
bogdanm	0:9b334a45a8ff	1906	assert_param(IS_UART_MODE(huart->Init.Mode));
bogdanm	0:9b334a45a8ff	1907	assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
bogdanm	0:9b334a45a8ff	1908
bogdanm	0:9b334a45a8ff	1909	/* The hardware flow control is available only for USART1, USART2, USART3 and USART6 */
bogdanm	0:9b334a45a8ff	1910	if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
bogdanm	0:9b334a45a8ff	1911	{
bogdanm	0:9b334a45a8ff	1912	assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
bogdanm	0:9b334a45a8ff	1913	}
bogdanm	0:9b334a45a8ff	1914
bogdanm	0:9b334a45a8ff	1915	/-------------------------- USART CR2 Configuration -----------------------/
bogdanm	0:9b334a45a8ff	1916	/* Configure the UART Stop Bits: Set STOP[13:12] bits according
bogdanm	0:9b334a45a8ff	1917	* to huart->Init.StopBits value */
bogdanm	0:9b334a45a8ff	1918	MODIFY_REG(huart->Instance->CR2, USART_CR2_STOP, huart->Init.StopBits);
bogdanm	0:9b334a45a8ff	1919
bogdanm	0:9b334a45a8ff	1920	/-------------------------- USART CR1 Configuration -----------------------/
bogdanm	0:9b334a45a8ff	1921	/* Configure the UART Word Length, Parity and mode:
bogdanm	0:9b334a45a8ff	1922	Set the M bits according to huart->Init.WordLength value
bogdanm	0:9b334a45a8ff	1923	Set PCE and PS bits according to huart->Init.Parity value
bogdanm	0:9b334a45a8ff	1924	Set TE and RE bits according to huart->Init.Mode value
bogdanm	0:9b334a45a8ff	1925	Set OVER8 bit according to huart->Init.OverSampling value */
bogdanm	0:9b334a45a8ff	1926	tmpreg = (uint32_t)huart->Init.WordLength \| huart->Init.Parity \| huart->Init.Mode \| huart->Init.OverSampling;
bogdanm	0:9b334a45a8ff	1927	MODIFY_REG(huart->Instance->CR1,
bogdanm	0:9b334a45a8ff	1928	(uint32_t)(USART_CR1_M \| USART_CR1_PCE \| USART_CR1_PS \| USART_CR1_TE \| USART_CR1_RE \| USART_CR1_OVER8),
bogdanm	0:9b334a45a8ff	1929	tmpreg);
bogdanm	0:9b334a45a8ff	1930
bogdanm	0:9b334a45a8ff	1931	/-------------------------- USART CR3 Configuration -----------------------/
bogdanm	0:9b334a45a8ff	1932	/* Configure the UART HFC: Set CTSE and RTSE bits according to huart->Init.HwFlowCtl value */
bogdanm	0:9b334a45a8ff	1933	MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE \| USART_CR3_CTSE), huart->Init.HwFlowCtl);
bogdanm	0:9b334a45a8ff	1934
bogdanm	0:9b334a45a8ff	1935	/* Check the Over Sampling */
bogdanm	0:9b334a45a8ff	1936	if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
bogdanm	0:9b334a45a8ff	1937	{
bogdanm	0:9b334a45a8ff	1938	/-------------------------- USART BRR Configuration ---------------------/
bogdanm	0:9b334a45a8ff	1939	if((huart->Instance == USART1))
bogdanm	0:9b334a45a8ff	1940	{
bogdanm	0:9b334a45a8ff	1941	huart->Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
bogdanm	0:9b334a45a8ff	1942	}
bogdanm	0:9b334a45a8ff	1943	else
bogdanm	0:9b334a45a8ff	1944	{
bogdanm	0:9b334a45a8ff	1945	huart->Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
bogdanm	0:9b334a45a8ff	1946	}
bogdanm	0:9b334a45a8ff	1947	}
bogdanm	0:9b334a45a8ff	1948	else
bogdanm	0:9b334a45a8ff	1949	{
bogdanm	0:9b334a45a8ff	1950	/-------------------------- USART BRR Configuration ---------------------/
bogdanm	0:9b334a45a8ff	1951	if((huart->Instance == USART1))
bogdanm	0:9b334a45a8ff	1952	{
bogdanm	0:9b334a45a8ff	1953	huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
bogdanm	0:9b334a45a8ff	1954	}
bogdanm	0:9b334a45a8ff	1955	else
bogdanm	0:9b334a45a8ff	1956	{
bogdanm	0:9b334a45a8ff	1957	huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
bogdanm	0:9b334a45a8ff	1958	}
bogdanm	0:9b334a45a8ff	1959	}
bogdanm	0:9b334a45a8ff	1960	}
bogdanm	0:9b334a45a8ff	1961	/**
bogdanm	0:9b334a45a8ff	1962	* @}
bogdanm	0:9b334a45a8ff	1963	*/
bogdanm	0:9b334a45a8ff	1964
bogdanm	0:9b334a45a8ff	1965	#endif /* HAL_UART_MODULE_ENABLED */
bogdanm	0:9b334a45a8ff	1966	/**
bogdanm	0:9b334a45a8ff	1967	* @}
bogdanm	0:9b334a45a8ff	1968	*/
bogdanm	0:9b334a45a8ff	1969
bogdanm	0:9b334a45a8ff	1970	/**
bogdanm	0:9b334a45a8ff	1971	* @}
bogdanm	0:9b334a45a8ff	1972	*/
bogdanm	0:9b334a45a8ff	1973
bogdanm	0:9b334a45a8ff	1974	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Created:	13 Apr 2017
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Commits:	150
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targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_uart.c@0:9b334a45a8ff, 2015-10-01 (annotated)

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targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_uart.c@0:9b334a45a8ff, 2015-10-01 (annotated)

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