mbed-stm32l0l1-src-1 - SHIO

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Fork of mbed-stm32l0/l1-src by lzbp li

targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_uart.c@387:643a59b3dbac, 2014-11-05 (annotated)

Committer:: mbed_official
Date:: Wed Nov 05 14:30:08 2014 +0000
Revision:: 387:643a59b3dbac
Parent:: 382:ee426a420dbb
Child:: 489:119543c9f674

Synchronized with git revision cfeccf154f8f92c3ea9c0c881c577c154537aecc

Full URL: https://github.com/mbedmicro/mbed/commit/cfeccf154f8f92c3ea9c0c881c577c154537aecc/

Exporters: STM32L053R8 - IAR exporter

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed_official	376:cb4d9db17537	1	/**
mbed_official	376:cb4d9db17537	2	******************************************************************************
mbed_official	376:cb4d9db17537	3	* @file stm32l0xx_hal_uart.c
mbed_official	376:cb4d9db17537	4	* @author MCD Application Team
mbed_official	376:cb4d9db17537	5	* @version V1.1.0
mbed_official	376:cb4d9db17537	6	* @date 18-June-2014
mbed_official	376:cb4d9db17537	7	* @brief UART HAL module driver.
mbed_official	376:cb4d9db17537	8	*
mbed_official	376:cb4d9db17537	9	* This file provides firmware functions to manage the following
mbed_official	376:cb4d9db17537	10	* functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART).
mbed_official	376:cb4d9db17537	11	* + Initialization and de-initialization methods
mbed_official	376:cb4d9db17537	12	* + IO operation methods
mbed_official	376:cb4d9db17537	13	* + Peripheral Control methods
mbed_official	376:cb4d9db17537	14	*
mbed_official	376:cb4d9db17537	15	@verbatim
mbed_official	376:cb4d9db17537	16	===============================================================================
mbed_official	376:cb4d9db17537	17	##### How to use this driver #####
mbed_official	376:cb4d9db17537	18	===============================================================================
mbed_official	376:cb4d9db17537	19	[..]
mbed_official	376:cb4d9db17537	20	The UART HAL driver can be used as follows:
mbed_official	376:cb4d9db17537	21
mbed_official	376:cb4d9db17537	22	(#) Declare a UART_HandleTypeDef handle structure.
mbed_official	376:cb4d9db17537	23
mbed_official	376:cb4d9db17537	24	(#) Initialize the UART low level resources by implementing the HAL_UART_MspInit() API:
mbed_official	376:cb4d9db17537	25	(##) Enable the USARTx interface clock.
mbed_official	376:cb4d9db17537	26	(##) UART pins configuration:
mbed_official	376:cb4d9db17537	27	(+++) Enable the clock for the UART GPIOs.
mbed_official	376:cb4d9db17537	28	(+++) Configure these UART pins as alternate function pull-up.
mbed_official	376:cb4d9db17537	29	(##) NVIC configuration if you need to use interrupt process (HAL_UART_Transmit_IT()
mbed_official	376:cb4d9db17537	30	and HAL_UART_Receive_IT() APIs):
mbed_official	376:cb4d9db17537	31	(+++) Configure the USARTx interrupt priority.
mbed_official	376:cb4d9db17537	32	(+++) Enable the NVIC USART IRQ handle.
mbed_official	376:cb4d9db17537	33
mbed_official	376:cb4d9db17537	34	(##) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA()
mbed_official	376:cb4d9db17537	35	and HAL_UART_Receive_DMA() APIs):
mbed_official	376:cb4d9db17537	36	(+++) Declare a DMA handle structure for the Tx/Rx stream.
mbed_official	376:cb4d9db17537	37	(+++) Enable the DMAx interface clock.
mbed_official	376:cb4d9db17537	38	(+++) Configure the declared DMA handle structure with the required
mbed_official	376:cb4d9db17537	39	Tx/Rx parameters.
mbed_official	376:cb4d9db17537	40	(+++) Configure the DMA Tx/Rx Stream.
mbed_official	376:cb4d9db17537	41	(+++) Associate the initialized DMA handle to the UART DMA Tx/Rx handle.
mbed_official	376:cb4d9db17537	42	(+++) Configure the priority and enable the NVIC for the transfer complete
mbed_official	376:cb4d9db17537	43	interrupt on the DMA Tx/Rx Stream.
mbed_official	376:cb4d9db17537	44
mbed_official	376:cb4d9db17537	45	(#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
mbed_official	376:cb4d9db17537	46	flow control and Mode(Receiver/Transmitter) in the Init structure.
mbed_official	376:cb4d9db17537	47
mbed_official	376:cb4d9db17537	48	(#) For the UART asynchronous mode, initialize the UART registers by calling
mbed_official	376:cb4d9db17537	49	the HAL_UART_Init() API.
mbed_official	376:cb4d9db17537	50
mbed_official	376:cb4d9db17537	51	(#) For the UART Half duplex mode, initialize the UART registers by calling
mbed_official	376:cb4d9db17537	52	the HAL_HalfDuplex_Init() API.
mbed_official	376:cb4d9db17537	53
mbed_official	376:cb4d9db17537	54	(#) For the LIN mode, initialize the UART registers by calling the HAL_LIN_Init() API.
mbed_official	376:cb4d9db17537	55
mbed_official	376:cb4d9db17537	56	(#) For the Multi-Processor mode, initialize the UART registers by calling
mbed_official	376:cb4d9db17537	57	the HAL_MultiProcessor_Init() API.
mbed_official	376:cb4d9db17537	58
mbed_official	376:cb4d9db17537	59	[..]
mbed_official	376:cb4d9db17537	60	(@) The specific UART interrupts (Transmission complete interrupt,
mbed_official	376:cb4d9db17537	61	RXNE interrupt and Error Interrupts) will be managed using the macros
mbed_official	376:cb4d9db17537	62	__HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the transmit
mbed_official	376:cb4d9db17537	63	and receive process.
mbed_official	376:cb4d9db17537	64
mbed_official	376:cb4d9db17537	65	[..]
mbed_official	376:cb4d9db17537	66	(@) These APIs (HAL_UART_Init() and HAL_HalfDuplex_Init()) configure also the
mbed_official	376:cb4d9db17537	67	low level Hardware GPIO, CLOCK, CORTEX...etc) by calling the customed
mbed_official	376:cb4d9db17537	68	HAL_UART_MspInit() API.
mbed_official	376:cb4d9db17537	69
mbed_official	376:cb4d9db17537	70	[..]
mbed_official	376:cb4d9db17537	71	Three operation modes are available within this driver :
mbed_official	376:cb4d9db17537	72
mbed_official	376:cb4d9db17537	73	* Polling mode IO operation *
mbed_official	376:cb4d9db17537	74	=================================
mbed_official	376:cb4d9db17537	75	[..]
mbed_official	376:cb4d9db17537	76	(+) Send an amount of data in blocking mode using HAL_UART_Transmit()
mbed_official	376:cb4d9db17537	77	(+) Receive an amount of data in blocking mode using HAL_UART_Receive()
mbed_official	376:cb4d9db17537	78
mbed_official	376:cb4d9db17537	79	* Interrupt mode IO operation *
mbed_official	376:cb4d9db17537	80	===================================
mbed_official	376:cb4d9db17537	81	[..]
mbed_official	376:cb4d9db17537	82	(+) Send an amount of data in non blocking mode using HAL_UART_Transmit_IT()
mbed_official	376:cb4d9db17537	83	(+) At transmission end of half transfer HAL_UART_TxHalfCpltCallback is executed and user can
mbed_official	376:cb4d9db17537	84	add his own code by customization of function pointer HAL_UART_TxHalfCpltCallback
mbed_official	376:cb4d9db17537	85	(+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
mbed_official	376:cb4d9db17537	86	add his own code by customization of function pointer HAL_UART_TxCpltCallback
mbed_official	376:cb4d9db17537	87	(+) Receive an amount of data in non blocking mode using HAL_UART_Receive_IT()
mbed_official	376:cb4d9db17537	88	(+) At reception end of half transfer HAL_UART_RxHalfCpltCallback is executed and user can
mbed_official	376:cb4d9db17537	89	add his own code by customization of function pointer HAL_UART_RxHalfCpltCallback
mbed_official	376:cb4d9db17537	90	(+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
mbed_official	376:cb4d9db17537	91	add his own code by customization of function pointer HAL_UART_RxCpltCallback
mbed_official	376:cb4d9db17537	92	(+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
mbed_official	376:cb4d9db17537	93	add his own code by customization of function pointer HAL_UART_ErrorCallback
mbed_official	376:cb4d9db17537	94
mbed_official	376:cb4d9db17537	95	* DMA mode IO operation *
mbed_official	376:cb4d9db17537	96	==============================
mbed_official	376:cb4d9db17537	97	[..]
mbed_official	376:cb4d9db17537	98	(+) Send an amount of data in non blocking mode (DMA) using HAL_UART_Transmit_DMA()
mbed_official	376:cb4d9db17537	99	(+) At transmission end of half transfer HAL_UART_TxHalfCpltCallback is executed and user can
mbed_official	376:cb4d9db17537	100	add his own code by customization of function pointer HAL_UART_TxHalfCpltCallback
mbed_official	376:cb4d9db17537	101	(+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
mbed_official	376:cb4d9db17537	102	add his own code by customization of function pointer HAL_UART_TxCpltCallback
mbed_official	376:cb4d9db17537	103	(+) Receive an amount of data in non blocking mode (DMA) using HAL_UART_Receive_DMA()
mbed_official	376:cb4d9db17537	104	(+) At reception end of half transfer HAL_UART_RxHalfCpltCallback is executed and user can
mbed_official	376:cb4d9db17537	105	add his own code by customization of function pointer HAL_UART_RxHalfCpltCallback
mbed_official	376:cb4d9db17537	106	(+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
mbed_official	376:cb4d9db17537	107	add his own code by customization of function pointer HAL_UART_RxCpltCallback
mbed_official	376:cb4d9db17537	108	(+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
mbed_official	376:cb4d9db17537	109	add his own code by customization of function pointer HAL_UART_ErrorCallback
mbed_official	376:cb4d9db17537	110	(+) Pause the DMA Transfer using HAL_UART_DMAPause()
mbed_official	376:cb4d9db17537	111	(+) Resume the DMA Transfer using HAL_UART_DMAResume()
mbed_official	376:cb4d9db17537	112	(+) Stop the DMA Transfer using HAL_UART_DMAStop()
mbed_official	376:cb4d9db17537	113
mbed_official	376:cb4d9db17537	114	* UART HAL driver macros list *
mbed_official	376:cb4d9db17537	115	=============================================
mbed_official	376:cb4d9db17537	116	[..]
mbed_official	376:cb4d9db17537	117	Below the list of most used macros in UART HAL driver.
mbed_official	376:cb4d9db17537	118
mbed_official	376:cb4d9db17537	119	(+) __HAL_UART_ENABLE: Enable the UART peripheral
mbed_official	376:cb4d9db17537	120	(+) __HAL_UART_DISABLE: Disable the UART peripheral
mbed_official	376:cb4d9db17537	121	(+) __HAL_UART_GET_FLAG : Check whether the specified UART flag is set or not
mbed_official	376:cb4d9db17537	122	(+) __HAL_UART_CLEAR_FLAG : Clear the specified UART pending flag
mbed_official	376:cb4d9db17537	123	(+) __HAL_UART_ENABLE_IT: Enable the specified UART interrupt
mbed_official	376:cb4d9db17537	124	(+) __HAL_UART_DISABLE_IT: Disable the specified UART interrupt
mbed_official	376:cb4d9db17537	125
mbed_official	376:cb4d9db17537	126	[..]
mbed_official	376:cb4d9db17537	127	(@) You can refer to the UART HAL driver header file for more useful macros
mbed_official	376:cb4d9db17537	128	@endverbatim
mbed_official	376:cb4d9db17537	129	******************************************************************************
mbed_official	376:cb4d9db17537	130	* @attention
mbed_official	376:cb4d9db17537	131	*
mbed_official	376:cb4d9db17537	132	* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official	376:cb4d9db17537	133	*
mbed_official	376:cb4d9db17537	134	* Redistribution and use in source and binary forms, with or without modification,
mbed_official	376:cb4d9db17537	135	* are permitted provided that the following conditions are met:
mbed_official	376:cb4d9db17537	136	* 1. Redistributions of source code must retain the above copyright notice,
mbed_official	376:cb4d9db17537	137	* this list of conditions and the following disclaimer.
mbed_official	376:cb4d9db17537	138	* 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official	376:cb4d9db17537	139	* this list of conditions and the following disclaimer in the documentation
mbed_official	376:cb4d9db17537	140	* and/or other materials provided with the distribution.
mbed_official	376:cb4d9db17537	141	* 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official	376:cb4d9db17537	142	* may be used to endorse or promote products derived from this software
mbed_official	376:cb4d9db17537	143	* without specific prior written permission.
mbed_official	376:cb4d9db17537	144	*
mbed_official	376:cb4d9db17537	145	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official	376:cb4d9db17537	146	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official	376:cb4d9db17537	147	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official	376:cb4d9db17537	148	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official	376:cb4d9db17537	149	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official	376:cb4d9db17537	150	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official	376:cb4d9db17537	151	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official	376:cb4d9db17537	152	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official	376:cb4d9db17537	153	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official	376:cb4d9db17537	154	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official	376:cb4d9db17537	155	*
mbed_official	376:cb4d9db17537	156	******************************************************************************
mbed_official	376:cb4d9db17537	157	*/
mbed_official	376:cb4d9db17537	158
mbed_official	376:cb4d9db17537	159	/* Includes ------------------------------------------------------------------*/
mbed_official	376:cb4d9db17537	160	#include "stm32l0xx_hal.h"
mbed_official	376:cb4d9db17537	161
mbed_official	376:cb4d9db17537	162	/** @addtogroup STM32L0xx_HAL_Driver
mbed_official	376:cb4d9db17537	163	* @{
mbed_official	376:cb4d9db17537	164	*/
mbed_official	376:cb4d9db17537	165
mbed_official	376:cb4d9db17537	166	/** @defgroup UART
mbed_official	376:cb4d9db17537	167	* @brief UART module driver
mbed_official	376:cb4d9db17537	168	* @{
mbed_official	376:cb4d9db17537	169	*/
mbed_official	376:cb4d9db17537	170	#ifdef HAL_UART_MODULE_ENABLED
mbed_official	376:cb4d9db17537	171
mbed_official	376:cb4d9db17537	172	/* Private typedef -----------------------------------------------------------*/
mbed_official	376:cb4d9db17537	173	/* Private define ------------------------------------------------------------*/
mbed_official	376:cb4d9db17537	174	#define UART_TIMEOUT_VALUE ((uint32_t) 22000)
mbed_official	376:cb4d9db17537	175	#define UART_CR1_FIELDS ((uint32_t)(USART_CR1_M \| USART_CR1_PCE \| USART_CR1_PS \| \
mbed_official	376:cb4d9db17537	176	USART_CR1_TE \| USART_CR1_RE \| USART_CR1_OVER8))
mbed_official	376:cb4d9db17537	177	/* Private macro -------------------------------------------------------------*/
mbed_official	376:cb4d9db17537	178	/* Private variables ---------------------------------------------------------*/
mbed_official	376:cb4d9db17537	179	/* Private function prototypes -----------------------------------------------*/
mbed_official	376:cb4d9db17537	180	static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
mbed_official	376:cb4d9db17537	181	static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official	376:cb4d9db17537	182	static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
mbed_official	376:cb4d9db17537	183	static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official	376:cb4d9db17537	184	static void UART_DMAError(DMA_HandleTypeDef *hdma);
mbed_official	376:cb4d9db17537	185	static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart);
mbed_official	376:cb4d9db17537	186	static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart);
mbed_official	376:cb4d9db17537	187
mbed_official	376:cb4d9db17537	188	/* Private functions ---------------------------------------------------------*/
mbed_official	376:cb4d9db17537	189
mbed_official	376:cb4d9db17537	190	/** @defgroup UART_Private_Functions
mbed_official	376:cb4d9db17537	191	* @{
mbed_official	376:cb4d9db17537	192	*/
mbed_official	376:cb4d9db17537	193
mbed_official	376:cb4d9db17537	194	/** @defgroup UART_Group1 Initialization/de-initialization methods
mbed_official	376:cb4d9db17537	195	* @brief Initialization and Configuration functions
mbed_official	376:cb4d9db17537	196	*
mbed_official	376:cb4d9db17537	197	@verbatim
mbed_official	376:cb4d9db17537	198	===============================================================================
mbed_official	376:cb4d9db17537	199	##### Initialization and Configuration functions #####
mbed_official	376:cb4d9db17537	200	===============================================================================
mbed_official	376:cb4d9db17537	201	[..]
mbed_official	376:cb4d9db17537	202	This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
mbed_official	376:cb4d9db17537	203	in asynchronous mode.
mbed_official	376:cb4d9db17537	204	(+) For the asynchronous mode only these parameters can be configured:
mbed_official	376:cb4d9db17537	205	(++) Baud Rate
mbed_official	376:cb4d9db17537	206	(++) Word Length
mbed_official	376:cb4d9db17537	207	(++) Stop Bit
mbed_official	376:cb4d9db17537	208	(++) Parity: If the parity is enabled, then the MSB bit of the data written
mbed_official	376:cb4d9db17537	209	in the data register is transmitted but is changed by the parity bit.
mbed_official	376:cb4d9db17537	210	Depending on the frame length defined by the M bit (8-bits or 9-bits),
mbed_official	376:cb4d9db17537	211	the possible UART frame formats are as listed in the following table:
mbed_official	376:cb4d9db17537	212	+-----------------------------------------------------------------------+
mbed_official	376:cb4d9db17537	213	\| M1 bit \| M0 bit \| PCE bit \| USART frame \|
mbed_official	376:cb4d9db17537	214	\|---------\|---------\|-----------\|---------------------------------------\|
mbed_official	376:cb4d9db17537	215	\| 0 \| 0 \| 0 \| \| SB \| 8 bit data \| STB \| \|
mbed_official	376:cb4d9db17537	216	\|---------\|---------\|-----------\|---------------------------------------\|
mbed_official	376:cb4d9db17537	217	\| 0 \| 0 \| 1 \| \| SB \| 7 bit data \| PB \| STB \| \|
mbed_official	376:cb4d9db17537	218	\|---------\|---------\|-----------\|---------------------------------------\|
mbed_official	376:cb4d9db17537	219	\| 0 \| 1 \| 0 \| \| SB \| 9 bit data \| STB \| \|
mbed_official	376:cb4d9db17537	220	\|---------\|---------\|-----------\|---------------------------------------\|
mbed_official	376:cb4d9db17537	221	\| 0 \| 1 \| 1 \| \| SB \| 8 bit data \| PB \| STB \| \|
mbed_official	376:cb4d9db17537	222	\|---------\|---------\|-----------\|---------------------------------------\|
mbed_official	376:cb4d9db17537	223	\| 1 \| 0 \| 0 \| \| SB \| 7 bit data \| STB \| \|
mbed_official	376:cb4d9db17537	224	\|---------\|---------\|-----------\|---------------------------------------\|
mbed_official	376:cb4d9db17537	225	\| 1 \| 0 \| 1 \| \| SB \| 6 bit data \| PB \| STB \| \|
mbed_official	376:cb4d9db17537	226	+-----------------------------------------------------------------------+
mbed_official	376:cb4d9db17537	227	(++) Hardware flow control
mbed_official	376:cb4d9db17537	228	(++) Receiver/transmitter modes
mbed_official	376:cb4d9db17537	229	(++) Over Sampling Method
mbed_official	376:cb4d9db17537	230	(++) One-Bit Sampling Method
mbed_official	376:cb4d9db17537	231	(+) For the asynchronous mode, the following advanced features can be configured as well:
mbed_official	376:cb4d9db17537	232	(++) TX and/or RX pin level inversion
mbed_official	376:cb4d9db17537	233	(++) data logical level inversion
mbed_official	376:cb4d9db17537	234	(++) RX and TX pins swap
mbed_official	376:cb4d9db17537	235	(++) RX overrun detection disabling
mbed_official	376:cb4d9db17537	236	(++) DMA disabling on RX error
mbed_official	376:cb4d9db17537	237	(++) MSB first on communication line
mbed_official	376:cb4d9db17537	238	(++) auto Baud rate detection
mbed_official	376:cb4d9db17537	239	[..]
mbed_official	376:cb4d9db17537	240	The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init()and HAL_MultiProcessorEx_Init()API
mbed_official	376:cb4d9db17537	241	follow respectively the UART asynchronous, UART Half duplex, UART LIN mode
mbed_official	376:cb4d9db17537	242	and UART multiprocessor mode mode configuration procedures (details for the procedures
mbed_official	376:cb4d9db17537	243	are available in reference manual).
mbed_official	376:cb4d9db17537	244
mbed_official	376:cb4d9db17537	245	@endverbatim
mbed_official	376:cb4d9db17537	246	* @{
mbed_official	376:cb4d9db17537	247	*/
mbed_official	376:cb4d9db17537	248
mbed_official	376:cb4d9db17537	249	/**
mbed_official	376:cb4d9db17537	250	* @brief Initializes the UART mode according to the specified
mbed_official	376:cb4d9db17537	251	* parameters in the UART_InitTypeDef and creates the associated handle .
mbed_official	376:cb4d9db17537	252	* @param huart: uart handle
mbed_official	376:cb4d9db17537	253	* @retval HAL status
mbed_official	376:cb4d9db17537	254	*/
mbed_official	376:cb4d9db17537	255	HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	256	{
mbed_official	376:cb4d9db17537	257	/* Check the UART handle allocation */
mbed_official	387:643a59b3dbac	258	if(huart == HAL_NULL)
mbed_official	376:cb4d9db17537	259	{
mbed_official	376:cb4d9db17537	260	return HAL_ERROR;
mbed_official	376:cb4d9db17537	261	}
mbed_official	376:cb4d9db17537	262
mbed_official	376:cb4d9db17537	263	if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
mbed_official	376:cb4d9db17537	264	{
mbed_official	376:cb4d9db17537	265	/* Check the parameters */
mbed_official	376:cb4d9db17537	266	assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
mbed_official	376:cb4d9db17537	267	}
mbed_official	376:cb4d9db17537	268	else
mbed_official	376:cb4d9db17537	269	{
mbed_official	376:cb4d9db17537	270	/* Check the parameters */
mbed_official	376:cb4d9db17537	271	assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official	376:cb4d9db17537	272	}
mbed_official	376:cb4d9db17537	273
mbed_official	376:cb4d9db17537	274	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	376:cb4d9db17537	275	{
mbed_official	376:cb4d9db17537	276	/* Init the low level hardware : GPIO, CLOCK, CORTEX */
mbed_official	376:cb4d9db17537	277	HAL_UART_MspInit(huart);
mbed_official	376:cb4d9db17537	278	}
mbed_official	376:cb4d9db17537	279
mbed_official	376:cb4d9db17537	280	huart->State = HAL_UART_STATE_BUSY;
mbed_official	376:cb4d9db17537	281
mbed_official	376:cb4d9db17537	282	/* Disable the Peripheral */
mbed_official	376:cb4d9db17537	283	__HAL_UART_DISABLE(huart);
mbed_official	376:cb4d9db17537	284
mbed_official	376:cb4d9db17537	285	/* Set the UART Communication parameters */
mbed_official	376:cb4d9db17537	286	UART_SetConfig(huart);
mbed_official	376:cb4d9db17537	287
mbed_official	376:cb4d9db17537	288	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	376:cb4d9db17537	289	{
mbed_official	376:cb4d9db17537	290	UART_AdvFeatureConfig(huart);
mbed_official	376:cb4d9db17537	291	}
mbed_official	376:cb4d9db17537	292
mbed_official	376:cb4d9db17537	293	/* In asynchronous mode, the following bits must be kept cleared:
mbed_official	376:cb4d9db17537	294	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	376:cb4d9db17537	295	- SCEN, HDSEL and IREN bits in the USART_CR3 register.*/
mbed_official	376:cb4d9db17537	296	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
mbed_official	376:cb4d9db17537	297	huart->Instance->CR3 &= ~(USART_CR3_SCEN \| USART_CR3_HDSEL \| USART_CR3_IREN);
mbed_official	376:cb4d9db17537	298
mbed_official	376:cb4d9db17537	299	/* Enable the Peripheral */
mbed_official	376:cb4d9db17537	300	__HAL_UART_ENABLE(huart);
mbed_official	376:cb4d9db17537	301
mbed_official	376:cb4d9db17537	302	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	376:cb4d9db17537	303	return (UART_CheckIdleState(huart));
mbed_official	376:cb4d9db17537	304	}
mbed_official	376:cb4d9db17537	305
mbed_official	376:cb4d9db17537	306	/**
mbed_official	376:cb4d9db17537	307	* @brief Initializes the half-duplex mode according to the specified
mbed_official	376:cb4d9db17537	308	* parameters in the UART_InitTypeDef and creates the associated handle .
mbed_official	376:cb4d9db17537	309	* @param huart: uart handle
mbed_official	376:cb4d9db17537	310	* @retval HAL status
mbed_official	376:cb4d9db17537	311	*/
mbed_official	376:cb4d9db17537	312	HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	313	{
mbed_official	376:cb4d9db17537	314	/* Check the UART handle allocation */
mbed_official	387:643a59b3dbac	315	if(huart == HAL_NULL)
mbed_official	376:cb4d9db17537	316	{
mbed_official	376:cb4d9db17537	317	return HAL_ERROR;
mbed_official	376:cb4d9db17537	318	}
mbed_official	376:cb4d9db17537	319
mbed_official	376:cb4d9db17537	320	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	376:cb4d9db17537	321	{
mbed_official	376:cb4d9db17537	322	/* Init the low level hardware : GPIO, CLOCK, CORTEX */
mbed_official	376:cb4d9db17537	323	HAL_UART_MspInit(huart);
mbed_official	376:cb4d9db17537	324	}
mbed_official	376:cb4d9db17537	325
mbed_official	376:cb4d9db17537	326	/* Disable the Peripheral */
mbed_official	376:cb4d9db17537	327	__HAL_UART_DISABLE(huart);
mbed_official	376:cb4d9db17537	328
mbed_official	376:cb4d9db17537	329	/* Set the UART Communication parameters */
mbed_official	376:cb4d9db17537	330	UART_SetConfig(huart);
mbed_official	376:cb4d9db17537	331
mbed_official	376:cb4d9db17537	332	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	376:cb4d9db17537	333	{
mbed_official	376:cb4d9db17537	334	UART_AdvFeatureConfig(huart);
mbed_official	376:cb4d9db17537	335	}
mbed_official	376:cb4d9db17537	336
mbed_official	376:cb4d9db17537	337	/* In half-duplex mode, the following bits must be kept cleared:
mbed_official	376:cb4d9db17537	338	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	376:cb4d9db17537	339	- SCEN and IREN bits in the USART_CR3 register.*/
mbed_official	376:cb4d9db17537	340	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
mbed_official	376:cb4d9db17537	341	huart->Instance->CR3 &= ~(USART_CR3_IREN \| USART_CR3_SCEN);
mbed_official	376:cb4d9db17537	342
mbed_official	376:cb4d9db17537	343	/* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */
mbed_official	376:cb4d9db17537	344	huart->Instance->CR3 \|= USART_CR3_HDSEL;
mbed_official	376:cb4d9db17537	345
mbed_official	376:cb4d9db17537	346	/* Enable the Peripheral */
mbed_official	376:cb4d9db17537	347	__HAL_UART_ENABLE(huart);
mbed_official	376:cb4d9db17537	348
mbed_official	376:cb4d9db17537	349	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	376:cb4d9db17537	350	return (UART_CheckIdleState(huart));
mbed_official	376:cb4d9db17537	351	}
mbed_official	376:cb4d9db17537	352
mbed_official	376:cb4d9db17537	353	/**
mbed_official	376:cb4d9db17537	354	* @brief Initializes the LIN mode according to the specified
mbed_official	376:cb4d9db17537	355	* parameters in the UART_InitTypeDef and creates the associated handle .
mbed_official	376:cb4d9db17537	356	* @param huart: uart handle
mbed_official	376:cb4d9db17537	357	* @param BreakDetectLength: specifies the LIN break detection length.
mbed_official	376:cb4d9db17537	358	* This parameter can be one of the following values:
mbed_official	376:cb4d9db17537	359	* @arg UART_LINBREAKDETECTLENGTH_10B: 10-bit break detection
mbed_official	376:cb4d9db17537	360	* @arg UART_LINBREAKDETECTLENGTH_11B: 11-bit break detection
mbed_official	376:cb4d9db17537	361	* @retval HAL status
mbed_official	376:cb4d9db17537	362	*/
mbed_official	376:cb4d9db17537	363	HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength)
mbed_official	376:cb4d9db17537	364	{
mbed_official	376:cb4d9db17537	365	/* Check the UART handle allocation */
mbed_official	387:643a59b3dbac	366	if(huart == HAL_NULL)
mbed_official	376:cb4d9db17537	367	{
mbed_official	376:cb4d9db17537	368	return HAL_ERROR;
mbed_official	376:cb4d9db17537	369	}
mbed_official	376:cb4d9db17537	370	/* Check the Break detection length parameter */
mbed_official	376:cb4d9db17537	371	assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength));
mbed_official	376:cb4d9db17537	372
mbed_official	376:cb4d9db17537	373	/* LIN mode limited to 16-bit oversampling only */
mbed_official	376:cb4d9db17537	374	if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
mbed_official	376:cb4d9db17537	375	{
mbed_official	376:cb4d9db17537	376	return HAL_ERROR;
mbed_official	376:cb4d9db17537	377	}
mbed_official	376:cb4d9db17537	378
mbed_official	376:cb4d9db17537	379	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	376:cb4d9db17537	380	{
mbed_official	376:cb4d9db17537	381	/* Init the low level hardware : GPIO, CLOCK, CORTEX */
mbed_official	376:cb4d9db17537	382	HAL_UART_MspInit(huart);
mbed_official	376:cb4d9db17537	383	}
mbed_official	376:cb4d9db17537	384
mbed_official	376:cb4d9db17537	385	/* Disable the Peripheral */
mbed_official	376:cb4d9db17537	386	__HAL_UART_DISABLE(huart);
mbed_official	376:cb4d9db17537	387
mbed_official	376:cb4d9db17537	388	/* Set the UART Communication parameters */
mbed_official	376:cb4d9db17537	389	UART_SetConfig(huart);
mbed_official	376:cb4d9db17537	390
mbed_official	376:cb4d9db17537	391	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	376:cb4d9db17537	392	{
mbed_official	376:cb4d9db17537	393	UART_AdvFeatureConfig(huart);
mbed_official	376:cb4d9db17537	394	}
mbed_official	376:cb4d9db17537	395
mbed_official	376:cb4d9db17537	396	/* In LIN mode, the following bits must be kept cleared:
mbed_official	376:cb4d9db17537	397	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	376:cb4d9db17537	398	- SCEN and IREN bits in the USART_CR3 register.*/
mbed_official	376:cb4d9db17537	399	huart->Instance->CR2 &= ~(USART_CR2_CLKEN);
mbed_official	376:cb4d9db17537	400	huart->Instance->CR3 &= ~(USART_CR3_HDSEL \| USART_CR3_IREN \| USART_CR3_SCEN);
mbed_official	376:cb4d9db17537	401
mbed_official	376:cb4d9db17537	402	/* Enable the LIN mode by setting the LINEN bit in the CR2 register */
mbed_official	376:cb4d9db17537	403	huart->Instance->CR2 \|= USART_CR2_LINEN;
mbed_official	376:cb4d9db17537	404
mbed_official	376:cb4d9db17537	405	/* Set the USART LIN Break detection length. */
mbed_official	376:cb4d9db17537	406	MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength);
mbed_official	376:cb4d9db17537	407
mbed_official	376:cb4d9db17537	408	/* Enable the Peripheral */
mbed_official	376:cb4d9db17537	409	__HAL_UART_ENABLE(huart);
mbed_official	376:cb4d9db17537	410
mbed_official	376:cb4d9db17537	411	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	376:cb4d9db17537	412	return (UART_CheckIdleState(huart));
mbed_official	376:cb4d9db17537	413	}
mbed_official	376:cb4d9db17537	414
mbed_official	376:cb4d9db17537	415	/**
mbed_official	376:cb4d9db17537	416	* @brief Initializes the multiprocessor mode according to the specified
mbed_official	376:cb4d9db17537	417	* parameters in the UART_InitTypeDef and creates the associated handle.
mbed_official	376:cb4d9db17537	418	* @param huart: UART handle
mbed_official	376:cb4d9db17537	419	* @param Address: UART node address (4-, 6-, 7- or 8-bit long)
mbed_official	376:cb4d9db17537	420	* @param WakeUpMethod: specifies the UART wakeup method.
mbed_official	376:cb4d9db17537	421	* This parameter can be one of the following values:
mbed_official	376:cb4d9db17537	422	* @arg UART_WAKEUPMETHOD_IDLELINE: WakeUp by an idle line detection
mbed_official	376:cb4d9db17537	423	* @arg UART_WAKEUPMETHOD_ADDRESSMARK: WakeUp by an address mark
mbed_official	376:cb4d9db17537	424	* @note If the user resorts to idle line detection wake up, the Address parameter
mbed_official	376:cb4d9db17537	425	* is useless and ignored by the initialization function.
mbed_official	376:cb4d9db17537	426	* @note If the user resorts to address mark wake up, the address length detection
mbed_official	376:cb4d9db17537	427	* is configured by default to 4 bits only. For the UART to be able to
mbed_official	376:cb4d9db17537	428	* manage 6-, 7- or 8-bit long addresses detection, the API
mbed_official	376:cb4d9db17537	429	* HAL_MultiProcessorEx_AddressLength_Set() must be called after
mbed_official	376:cb4d9db17537	430	* HAL_MultiProcessor_Init().
mbed_official	376:cb4d9db17537	431	* @retval HAL status
mbed_official	376:cb4d9db17537	432	*/
mbed_official	376:cb4d9db17537	433	HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod)
mbed_official	376:cb4d9db17537	434	{
mbed_official	376:cb4d9db17537	435	/* Check the UART handle allocation */
mbed_official	387:643a59b3dbac	436	if(huart == HAL_NULL)
mbed_official	376:cb4d9db17537	437	{
mbed_official	376:cb4d9db17537	438	return HAL_ERROR;
mbed_official	376:cb4d9db17537	439	}
mbed_official	376:cb4d9db17537	440
mbed_official	376:cb4d9db17537	441	/* Check the wake up method parameter */
mbed_official	376:cb4d9db17537	442	assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
mbed_official	376:cb4d9db17537	443
mbed_official	376:cb4d9db17537	444	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	376:cb4d9db17537	445	{
mbed_official	376:cb4d9db17537	446	/* Init the low level hardware : GPIO, CLOCK */
mbed_official	376:cb4d9db17537	447	HAL_UART_MspInit(huart);
mbed_official	376:cb4d9db17537	448	}
mbed_official	376:cb4d9db17537	449
mbed_official	376:cb4d9db17537	450	huart->State = HAL_UART_STATE_BUSY;
mbed_official	376:cb4d9db17537	451
mbed_official	376:cb4d9db17537	452	/* Disable the Peripheral */
mbed_official	376:cb4d9db17537	453	__HAL_UART_DISABLE(huart);
mbed_official	376:cb4d9db17537	454
mbed_official	376:cb4d9db17537	455	/* Set the UART Communication parameters */
mbed_official	376:cb4d9db17537	456	UART_SetConfig(huart);
mbed_official	376:cb4d9db17537	457
mbed_official	376:cb4d9db17537	458	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	376:cb4d9db17537	459	{
mbed_official	376:cb4d9db17537	460	UART_AdvFeatureConfig(huart);
mbed_official	376:cb4d9db17537	461	}
mbed_official	376:cb4d9db17537	462
mbed_official	376:cb4d9db17537	463	/* In multiprocessor mode, the following bits must be kept cleared:
mbed_official	376:cb4d9db17537	464	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	376:cb4d9db17537	465	- SCEN, HDSEL and IREN bits in the USART_CR3 register. */
mbed_official	376:cb4d9db17537	466	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
mbed_official	376:cb4d9db17537	467	huart->Instance->CR3 &= ~(USART_CR3_SCEN \| USART_CR3_HDSEL \| USART_CR3_IREN);
mbed_official	376:cb4d9db17537	468
mbed_official	376:cb4d9db17537	469	if (WakeUpMethod == UART_WAKEUPMETHOD_ADDRESSMARK)
mbed_official	376:cb4d9db17537	470	{
mbed_official	376:cb4d9db17537	471	/* If address mark wake up method is chosen, set the USART address node */
mbed_official	376:cb4d9db17537	472	MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)Address << UART_CR2_ADDRESS_LSB_POS));
mbed_official	376:cb4d9db17537	473	}
mbed_official	376:cb4d9db17537	474
mbed_official	376:cb4d9db17537	475	/* Set the wake up method by setting the WAKE bit in the CR1 register */
mbed_official	376:cb4d9db17537	476	MODIFY_REG(huart->Instance->CR1, USART_CR1_WAKE, WakeUpMethod);
mbed_official	376:cb4d9db17537	477
mbed_official	376:cb4d9db17537	478	/* Enable the Peripheral */
mbed_official	376:cb4d9db17537	479	__HAL_UART_ENABLE(huart);
mbed_official	376:cb4d9db17537	480
mbed_official	376:cb4d9db17537	481	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	376:cb4d9db17537	482	return (UART_CheckIdleState(huart));
mbed_official	376:cb4d9db17537	483	}
mbed_official	376:cb4d9db17537	484
mbed_official	376:cb4d9db17537	485	/**
mbed_official	376:cb4d9db17537	486	* @brief DeInitializes the UART peripheral
mbed_official	376:cb4d9db17537	487	* @param huart: uart handle
mbed_official	376:cb4d9db17537	488	* @retval HAL status
mbed_official	376:cb4d9db17537	489	*/
mbed_official	376:cb4d9db17537	490	HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	491	{
mbed_official	376:cb4d9db17537	492	/* Check the UART handle allocation */
mbed_official	387:643a59b3dbac	493	if(huart == HAL_NULL)
mbed_official	376:cb4d9db17537	494	{
mbed_official	376:cb4d9db17537	495	return HAL_ERROR;
mbed_official	376:cb4d9db17537	496	}
mbed_official	376:cb4d9db17537	497
mbed_official	376:cb4d9db17537	498	/* Check the parameters */
mbed_official	376:cb4d9db17537	499	assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official	376:cb4d9db17537	500
mbed_official	376:cb4d9db17537	501	huart->State = HAL_UART_STATE_BUSY;
mbed_official	376:cb4d9db17537	502
mbed_official	376:cb4d9db17537	503	/* Disable the Peripheral */
mbed_official	376:cb4d9db17537	504	__HAL_UART_DISABLE(huart);
mbed_official	376:cb4d9db17537	505
mbed_official	376:cb4d9db17537	506	huart->Instance->CR1 = 0x0;
mbed_official	376:cb4d9db17537	507	huart->Instance->CR2 = 0x0;
mbed_official	376:cb4d9db17537	508	huart->Instance->CR3 = 0x0;
mbed_official	376:cb4d9db17537	509
mbed_official	376:cb4d9db17537	510	/* DeInit the low level hardware */
mbed_official	376:cb4d9db17537	511	HAL_UART_MspDeInit(huart);
mbed_official	376:cb4d9db17537	512
mbed_official	376:cb4d9db17537	513	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	376:cb4d9db17537	514	huart->State = HAL_UART_STATE_RESET;
mbed_official	376:cb4d9db17537	515
mbed_official	376:cb4d9db17537	516	/* Release Lock */
mbed_official	376:cb4d9db17537	517	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	518
mbed_official	376:cb4d9db17537	519	return HAL_OK;
mbed_official	376:cb4d9db17537	520	}
mbed_official	376:cb4d9db17537	521
mbed_official	376:cb4d9db17537	522	/**
mbed_official	376:cb4d9db17537	523	* @brief UART MSP Init
mbed_official	376:cb4d9db17537	524	* @param huart: uart handle
mbed_official	376:cb4d9db17537	525	* @retval None
mbed_official	376:cb4d9db17537	526	*/
mbed_official	376:cb4d9db17537	527	__weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	528	{
mbed_official	376:cb4d9db17537	529	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	376:cb4d9db17537	530	the HAL_UART_MspInit can be implemented in the user file
mbed_official	376:cb4d9db17537	531	*/
mbed_official	376:cb4d9db17537	532	}
mbed_official	376:cb4d9db17537	533
mbed_official	376:cb4d9db17537	534	/**
mbed_official	376:cb4d9db17537	535	* @brief UART MSP DeInit
mbed_official	376:cb4d9db17537	536	* @param huart: uart handle
mbed_official	376:cb4d9db17537	537	* @retval None
mbed_official	376:cb4d9db17537	538	*/
mbed_official	376:cb4d9db17537	539	__weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	540	{
mbed_official	376:cb4d9db17537	541	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	376:cb4d9db17537	542	the HAL_UART_MspDeInit can be implemented in the user file
mbed_official	376:cb4d9db17537	543	*/
mbed_official	376:cb4d9db17537	544	}
mbed_official	376:cb4d9db17537	545
mbed_official	376:cb4d9db17537	546	/**
mbed_official	376:cb4d9db17537	547	* @}
mbed_official	376:cb4d9db17537	548	*/
mbed_official	376:cb4d9db17537	549
mbed_official	376:cb4d9db17537	550	/** @defgroup UART_Group2 IO operation functions
mbed_official	376:cb4d9db17537	551	* @brief UART Transmit/Receive functions
mbed_official	376:cb4d9db17537	552	*
mbed_official	376:cb4d9db17537	553	@verbatim
mbed_official	376:cb4d9db17537	554	===============================================================================
mbed_official	376:cb4d9db17537	555	##### IO operation functions #####
mbed_official	376:cb4d9db17537	556	===============================================================================
mbed_official	376:cb4d9db17537	557	This subsection provides a set of functions allowing to manage the UART asynchronous
mbed_official	376:cb4d9db17537	558	and Half duplex data transfers.
mbed_official	376:cb4d9db17537	559
mbed_official	376:cb4d9db17537	560	(#) There are two mode of transfer:
mbed_official	376:cb4d9db17537	561	(+) Blocking mode: The communication is performed in polling mode.
mbed_official	376:cb4d9db17537	562	The HAL status of all data processing is returned by the same function
mbed_official	376:cb4d9db17537	563	after finishing transfer.
mbed_official	376:cb4d9db17537	564	(+) No-Blocking mode: The communication is performed using Interrupts
mbed_official	376:cb4d9db17537	565	or DMA, These API's return the HAL status.
mbed_official	376:cb4d9db17537	566	The end of the data processing will be indicated through the
mbed_official	376:cb4d9db17537	567	dedicated UART IRQ when using Interrupt mode or the DMA IRQ when
mbed_official	376:cb4d9db17537	568	using DMA mode.
mbed_official	376:cb4d9db17537	569	The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks
mbed_official	376:cb4d9db17537	570	will be executed respectivelly at the end of the transmit or Receive process
mbed_official	376:cb4d9db17537	571	The HAL_UART_ErrorCallback()user callback will be executed when a communication error is detected
mbed_official	376:cb4d9db17537	572
mbed_official	376:cb4d9db17537	573	(#) Blocking mode API's are :
mbed_official	376:cb4d9db17537	574	(+) HAL_UART_Transmit()
mbed_official	376:cb4d9db17537	575	(+) HAL_UART_Receive()
mbed_official	376:cb4d9db17537	576
mbed_official	376:cb4d9db17537	577	(#) Non-Blocking mode API's with Interrupt are :
mbed_official	376:cb4d9db17537	578	(+) HAL_UART_Transmit_IT()
mbed_official	376:cb4d9db17537	579	(+) HAL_UART_Receive_IT()
mbed_official	376:cb4d9db17537	580	(+) HAL_UART_IRQHandler()
mbed_official	376:cb4d9db17537	581	(+) UART_Transmit_IT()
mbed_official	376:cb4d9db17537	582	(+) UART_Receive_IT()
mbed_official	376:cb4d9db17537	583
mbed_official	376:cb4d9db17537	584	(#) No-Blocking mode API's with DMA are :
mbed_official	376:cb4d9db17537	585	(+) HAL_UART_Transmit_DMA()
mbed_official	376:cb4d9db17537	586	(+) HAL_UART_Receive_DMA()
mbed_official	376:cb4d9db17537	587	(+) HAL_UART_DMAPause()
mbed_official	376:cb4d9db17537	588	(+) HAL_UART_DMAResume()
mbed_official	376:cb4d9db17537	589	(+) HAL_UART_DMAStop()
mbed_official	376:cb4d9db17537	590
mbed_official	376:cb4d9db17537	591	(#) A set of Transfer Complete Callbacks are provided in No_Blocking mode:
mbed_official	376:cb4d9db17537	592	(+) HAL_UART_TxHalfCpltCallback()
mbed_official	376:cb4d9db17537	593	(+) HAL_UART_TxCpltCallback()
mbed_official	376:cb4d9db17537	594	(+) HAL_UART_RxHalfCpltCallback()
mbed_official	376:cb4d9db17537	595	(+) HAL_UART_RxCpltCallback()
mbed_official	376:cb4d9db17537	596	(+) HAL_UART_ErrorCallback()
mbed_official	376:cb4d9db17537	597
mbed_official	376:cb4d9db17537	598	-@- In the Half duplex communication, it is forbidden to run the transmit
mbed_official	376:cb4d9db17537	599	and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX can't be useful.
mbed_official	376:cb4d9db17537	600
mbed_official	376:cb4d9db17537	601	@endverbatim
mbed_official	376:cb4d9db17537	602	* @{
mbed_official	376:cb4d9db17537	603	*/
mbed_official	376:cb4d9db17537	604
mbed_official	376:cb4d9db17537	605	/**
mbed_official	376:cb4d9db17537	606	* @brief Send an amount of data in blocking mode
mbed_official	376:cb4d9db17537	607	* @param huart: uart handle
mbed_official	376:cb4d9db17537	608	* @param pData: pointer to data buffer
mbed_official	376:cb4d9db17537	609	* @param Size: amount of data to be sent
mbed_official	376:cb4d9db17537	610	* @param Timeout : Timeout duration
mbed_official	376:cb4d9db17537	611	* @retval HAL status
mbed_official	376:cb4d9db17537	612	*/
mbed_official	376:cb4d9db17537	613	HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size, uint32_t Timeout)
mbed_official	376:cb4d9db17537	614	{
mbed_official	376:cb4d9db17537	615	uint16_t* tmp;
mbed_official	376:cb4d9db17537	616
mbed_official	376:cb4d9db17537	617	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official	376:cb4d9db17537	618	{
mbed_official	387:643a59b3dbac	619	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	376:cb4d9db17537	620	{
mbed_official	376:cb4d9db17537	621	return HAL_ERROR;
mbed_official	376:cb4d9db17537	622	}
mbed_official	376:cb4d9db17537	623
mbed_official	376:cb4d9db17537	624	/* Process Locked */
mbed_official	376:cb4d9db17537	625	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	626
mbed_official	376:cb4d9db17537	627	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	376:cb4d9db17537	628	/* Check if a non-blocking receive process is ongoing or not */
mbed_official	376:cb4d9db17537	629	if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	376:cb4d9db17537	630	{
mbed_official	376:cb4d9db17537	631	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	376:cb4d9db17537	632	}
mbed_official	376:cb4d9db17537	633	else
mbed_official	376:cb4d9db17537	634	{
mbed_official	376:cb4d9db17537	635	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	376:cb4d9db17537	636	}
mbed_official	376:cb4d9db17537	637
mbed_official	376:cb4d9db17537	638	huart->TxXferSize = Size;
mbed_official	376:cb4d9db17537	639	huart->TxXferCount = Size;
mbed_official	376:cb4d9db17537	640	while(huart->TxXferCount > 0)
mbed_official	376:cb4d9db17537	641	{
mbed_official	376:cb4d9db17537	642	huart->TxXferCount--;
mbed_official	376:cb4d9db17537	643	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK)
mbed_official	376:cb4d9db17537	644	{
mbed_official	376:cb4d9db17537	645	return HAL_TIMEOUT;
mbed_official	376:cb4d9db17537	646	}
mbed_official	376:cb4d9db17537	647	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	376:cb4d9db17537	648	{
mbed_official	376:cb4d9db17537	649	tmp = (uint16_t*) pData;
mbed_official	376:cb4d9db17537	650	huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
mbed_official	376:cb4d9db17537	651	pData += 2;
mbed_official	376:cb4d9db17537	652	}
mbed_official	376:cb4d9db17537	653	else
mbed_official	376:cb4d9db17537	654	{
mbed_official	376:cb4d9db17537	655	huart->Instance->TDR = (*pData++ & (uint8_t)0xFF);
mbed_official	376:cb4d9db17537	656	}
mbed_official	376:cb4d9db17537	657	}
mbed_official	376:cb4d9db17537	658	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official	376:cb4d9db17537	659	{
mbed_official	376:cb4d9db17537	660	return HAL_TIMEOUT;
mbed_official	376:cb4d9db17537	661	}
mbed_official	376:cb4d9db17537	662	/* Check if a non-blocking receive Process is ongoing or not */
mbed_official	376:cb4d9db17537	663	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	376:cb4d9db17537	664	{
mbed_official	376:cb4d9db17537	665	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	376:cb4d9db17537	666	}
mbed_official	376:cb4d9db17537	667	else
mbed_official	376:cb4d9db17537	668	{
mbed_official	376:cb4d9db17537	669	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	670	}
mbed_official	376:cb4d9db17537	671
mbed_official	376:cb4d9db17537	672	/* Process Unlocked */
mbed_official	376:cb4d9db17537	673	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	674
mbed_official	376:cb4d9db17537	675	return HAL_OK;
mbed_official	376:cb4d9db17537	676	}
mbed_official	376:cb4d9db17537	677	else
mbed_official	376:cb4d9db17537	678	{
mbed_official	376:cb4d9db17537	679	return HAL_BUSY;
mbed_official	376:cb4d9db17537	680	}
mbed_official	376:cb4d9db17537	681	}
mbed_official	376:cb4d9db17537	682
mbed_official	376:cb4d9db17537	683	/**
mbed_official	376:cb4d9db17537	684	* @brief Receive an amount of data in blocking mode
mbed_official	376:cb4d9db17537	685	* @param huart: uart handle
mbed_official	376:cb4d9db17537	686	* @param pData: pointer to data buffer
mbed_official	376:cb4d9db17537	687	* @param Size: amount of data to be received
mbed_official	376:cb4d9db17537	688	* @param Timeout : Timeout duration
mbed_official	376:cb4d9db17537	689	* @retval HAL status
mbed_official	376:cb4d9db17537	690	*/
mbed_official	376:cb4d9db17537	691	HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size, uint32_t Timeout)
mbed_official	376:cb4d9db17537	692	{
mbed_official	376:cb4d9db17537	693	uint16_t* tmp;
mbed_official	376:cb4d9db17537	694	uint16_t uhMask;
mbed_official	376:cb4d9db17537	695
mbed_official	376:cb4d9db17537	696	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official	376:cb4d9db17537	697	{
mbed_official	387:643a59b3dbac	698	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	376:cb4d9db17537	699	{
mbed_official	376:cb4d9db17537	700	return HAL_ERROR;
mbed_official	376:cb4d9db17537	701	}
mbed_official	376:cb4d9db17537	702
mbed_official	376:cb4d9db17537	703	/* Process Locked */
mbed_official	376:cb4d9db17537	704	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	705
mbed_official	376:cb4d9db17537	706	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	376:cb4d9db17537	707	/* Check if a non-blocking transmit process is ongoing or not */
mbed_official	376:cb4d9db17537	708	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	376:cb4d9db17537	709	{
mbed_official	376:cb4d9db17537	710	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	376:cb4d9db17537	711	}
mbed_official	376:cb4d9db17537	712	else
mbed_official	376:cb4d9db17537	713	{
mbed_official	376:cb4d9db17537	714	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	376:cb4d9db17537	715	}
mbed_official	376:cb4d9db17537	716
mbed_official	376:cb4d9db17537	717	huart->RxXferSize = Size;
mbed_official	376:cb4d9db17537	718	huart->RxXferCount = Size;
mbed_official	376:cb4d9db17537	719
mbed_official	376:cb4d9db17537	720	/* Computation of UART mask to apply to RDR register */
mbed_official	376:cb4d9db17537	721	__HAL_UART_MASK_COMPUTATION(huart);
mbed_official	376:cb4d9db17537	722	uhMask = huart->Mask;
mbed_official	376:cb4d9db17537	723
mbed_official	376:cb4d9db17537	724	/* as long as data have to be received */
mbed_official	376:cb4d9db17537	725	while(huart->RxXferCount > 0)
mbed_official	376:cb4d9db17537	726	{
mbed_official	376:cb4d9db17537	727	huart->RxXferCount--;
mbed_official	376:cb4d9db17537	728	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
mbed_official	376:cb4d9db17537	729	{
mbed_official	376:cb4d9db17537	730	return HAL_TIMEOUT;
mbed_official	376:cb4d9db17537	731	}
mbed_official	376:cb4d9db17537	732	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	376:cb4d9db17537	733	{
mbed_official	376:cb4d9db17537	734	tmp = (uint16_t*) pData ;
mbed_official	376:cb4d9db17537	735	*tmp = (uint16_t)(huart->Instance->RDR & uhMask);
mbed_official	376:cb4d9db17537	736	pData +=2;
mbed_official	376:cb4d9db17537	737	}
mbed_official	376:cb4d9db17537	738	else
mbed_official	376:cb4d9db17537	739	{
mbed_official	376:cb4d9db17537	740	*pData++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
mbed_official	376:cb4d9db17537	741	}
mbed_official	376:cb4d9db17537	742	}
mbed_official	376:cb4d9db17537	743
mbed_official	376:cb4d9db17537	744	/* Check if a non-blocking transmit Process is ongoing or not */
mbed_official	376:cb4d9db17537	745	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	376:cb4d9db17537	746	{
mbed_official	376:cb4d9db17537	747	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	376:cb4d9db17537	748	}
mbed_official	376:cb4d9db17537	749	else
mbed_official	376:cb4d9db17537	750	{
mbed_official	376:cb4d9db17537	751	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	752	}
mbed_official	376:cb4d9db17537	753	/* Process Unlocked */
mbed_official	376:cb4d9db17537	754	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	755
mbed_official	376:cb4d9db17537	756	return HAL_OK;
mbed_official	376:cb4d9db17537	757	}
mbed_official	376:cb4d9db17537	758	else
mbed_official	376:cb4d9db17537	759	{
mbed_official	376:cb4d9db17537	760	return HAL_BUSY;
mbed_official	376:cb4d9db17537	761	}
mbed_official	376:cb4d9db17537	762	}
mbed_official	376:cb4d9db17537	763
mbed_official	376:cb4d9db17537	764	/**
mbed_official	376:cb4d9db17537	765	* @brief Send an amount of data in interrupt mode
mbed_official	376:cb4d9db17537	766	* @param huart: uart handle
mbed_official	376:cb4d9db17537	767	* @param pData: pointer to data buffer
mbed_official	376:cb4d9db17537	768	* @param Size: amount of data to be sent
mbed_official	376:cb4d9db17537	769	* @retval HAL status
mbed_official	376:cb4d9db17537	770	*/
mbed_official	376:cb4d9db17537	771	HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	376:cb4d9db17537	772	{
mbed_official	376:cb4d9db17537	773	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official	376:cb4d9db17537	774	{
mbed_official	387:643a59b3dbac	775	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	376:cb4d9db17537	776	{
mbed_official	376:cb4d9db17537	777	return HAL_ERROR;
mbed_official	376:cb4d9db17537	778	}
mbed_official	376:cb4d9db17537	779
mbed_official	376:cb4d9db17537	780	/* Process Locked */
mbed_official	376:cb4d9db17537	781	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	782
mbed_official	376:cb4d9db17537	783	huart->pTxBuffPtr = pData;
mbed_official	376:cb4d9db17537	784	huart->TxXferSize = Size;
mbed_official	376:cb4d9db17537	785	huart->TxXferCount = Size;
mbed_official	376:cb4d9db17537	786
mbed_official	376:cb4d9db17537	787	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	376:cb4d9db17537	788	/* Check if a receive process is ongoing or not */
mbed_official	376:cb4d9db17537	789	if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	376:cb4d9db17537	790	{
mbed_official	376:cb4d9db17537	791	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	376:cb4d9db17537	792	}
mbed_official	376:cb4d9db17537	793	else
mbed_official	376:cb4d9db17537	794	{
mbed_official	376:cb4d9db17537	795	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	376:cb4d9db17537	796	}
mbed_official	376:cb4d9db17537	797
mbed_official	376:cb4d9db17537	798	/* Enable the UART Parity Error Interrupt */
mbed_official	376:cb4d9db17537	799	__HAL_UART_ENABLE_IT(huart, UART_IT_PE);
mbed_official	376:cb4d9db17537	800
mbed_official	376:cb4d9db17537	801	/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	376:cb4d9db17537	802	__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
mbed_official	376:cb4d9db17537	803
mbed_official	376:cb4d9db17537	804	/* Process Unlocked */
mbed_official	376:cb4d9db17537	805	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	806
mbed_official	376:cb4d9db17537	807	/* Enable the UART Transmit data register empty Interrupt */
mbed_official	376:cb4d9db17537	808	__HAL_UART_ENABLE_IT(huart, UART_IT_TXE);
mbed_official	376:cb4d9db17537	809
mbed_official	376:cb4d9db17537	810	return HAL_OK;
mbed_official	376:cb4d9db17537	811	}
mbed_official	376:cb4d9db17537	812	else
mbed_official	376:cb4d9db17537	813	{
mbed_official	376:cb4d9db17537	814	return HAL_BUSY;
mbed_official	376:cb4d9db17537	815	}
mbed_official	376:cb4d9db17537	816	}
mbed_official	376:cb4d9db17537	817
mbed_official	376:cb4d9db17537	818	/**
mbed_official	376:cb4d9db17537	819	* @brief Receive an amount of data in interrupt mode
mbed_official	376:cb4d9db17537	820	* @param huart: uart handle
mbed_official	376:cb4d9db17537	821	* @param pData: pointer to data buffer
mbed_official	376:cb4d9db17537	822	* @param Size: amount of data to be received
mbed_official	376:cb4d9db17537	823	* @retval HAL status
mbed_official	376:cb4d9db17537	824	*/
mbed_official	376:cb4d9db17537	825	HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	376:cb4d9db17537	826	{
mbed_official	376:cb4d9db17537	827	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official	376:cb4d9db17537	828	{
mbed_official	387:643a59b3dbac	829	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	376:cb4d9db17537	830	{
mbed_official	376:cb4d9db17537	831	return HAL_ERROR;
mbed_official	376:cb4d9db17537	832	}
mbed_official	376:cb4d9db17537	833
mbed_official	376:cb4d9db17537	834	/* Process Locked */
mbed_official	376:cb4d9db17537	835	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	836
mbed_official	376:cb4d9db17537	837	huart->pRxBuffPtr = pData;
mbed_official	376:cb4d9db17537	838	huart->RxXferSize = Size;
mbed_official	376:cb4d9db17537	839	huart->RxXferCount = Size;
mbed_official	376:cb4d9db17537	840
mbed_official	376:cb4d9db17537	841	/* Computation of UART mask to apply to RDR register */
mbed_official	376:cb4d9db17537	842	__HAL_UART_MASK_COMPUTATION(huart);
mbed_official	376:cb4d9db17537	843
mbed_official	376:cb4d9db17537	844	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	376:cb4d9db17537	845	/* Check if a transmit process is ongoing or not */
mbed_official	376:cb4d9db17537	846	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	376:cb4d9db17537	847	{
mbed_official	376:cb4d9db17537	848	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	376:cb4d9db17537	849	}
mbed_official	376:cb4d9db17537	850	else
mbed_official	376:cb4d9db17537	851	{
mbed_official	376:cb4d9db17537	852	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	376:cb4d9db17537	853	}
mbed_official	376:cb4d9db17537	854
mbed_official	376:cb4d9db17537	855	/* Enable the UART Parity Error Interrupt */
mbed_official	376:cb4d9db17537	856	__HAL_UART_ENABLE_IT(huart, UART_IT_PE);
mbed_official	376:cb4d9db17537	857
mbed_official	376:cb4d9db17537	858	/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	376:cb4d9db17537	859	__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
mbed_official	376:cb4d9db17537	860
mbed_official	376:cb4d9db17537	861	/* Process Unlocked */
mbed_official	376:cb4d9db17537	862	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	863
mbed_official	376:cb4d9db17537	864	/* Enable the UART Data Register not empty Interrupt */
mbed_official	376:cb4d9db17537	865	__HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
mbed_official	376:cb4d9db17537	866
mbed_official	376:cb4d9db17537	867	return HAL_OK;
mbed_official	376:cb4d9db17537	868	}
mbed_official	376:cb4d9db17537	869	else
mbed_official	376:cb4d9db17537	870	{
mbed_official	376:cb4d9db17537	871	return HAL_BUSY;
mbed_official	376:cb4d9db17537	872	}
mbed_official	376:cb4d9db17537	873	}
mbed_official	376:cb4d9db17537	874
mbed_official	376:cb4d9db17537	875	/**
mbed_official	376:cb4d9db17537	876	* @brief Send an amount of data in DMA mode
mbed_official	376:cb4d9db17537	877	* @param huart: uart handle
mbed_official	376:cb4d9db17537	878	* @param pData: pointer to data buffer
mbed_official	376:cb4d9db17537	879	* @param Size: amount of data to be sent
mbed_official	376:cb4d9db17537	880	* @retval HAL status
mbed_official	376:cb4d9db17537	881	*/
mbed_official	376:cb4d9db17537	882	HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	376:cb4d9db17537	883	{
mbed_official	376:cb4d9db17537	884	uint32_t *tmp;
mbed_official	376:cb4d9db17537	885
mbed_official	376:cb4d9db17537	886	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official	376:cb4d9db17537	887	{
mbed_official	387:643a59b3dbac	888	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	376:cb4d9db17537	889	{
mbed_official	376:cb4d9db17537	890	return HAL_ERROR;
mbed_official	376:cb4d9db17537	891	}
mbed_official	376:cb4d9db17537	892
mbed_official	376:cb4d9db17537	893	/* Process Locked */
mbed_official	376:cb4d9db17537	894	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	895
mbed_official	376:cb4d9db17537	896	huart->pTxBuffPtr = pData;
mbed_official	376:cb4d9db17537	897	huart->TxXferSize = Size;
mbed_official	376:cb4d9db17537	898	huart->TxXferCount = Size;
mbed_official	376:cb4d9db17537	899
mbed_official	376:cb4d9db17537	900	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	376:cb4d9db17537	901	/* Check if a receive process is ongoing or not */
mbed_official	376:cb4d9db17537	902	if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	376:cb4d9db17537	903	{
mbed_official	376:cb4d9db17537	904	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	376:cb4d9db17537	905	}
mbed_official	376:cb4d9db17537	906	else
mbed_official	376:cb4d9db17537	907	{
mbed_official	376:cb4d9db17537	908	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	376:cb4d9db17537	909	}
mbed_official	376:cb4d9db17537	910
mbed_official	376:cb4d9db17537	911	/* Set the UART DMA transfert complete callback */
mbed_official	376:cb4d9db17537	912	huart->hdmatx->XferCpltCallback = UART_DMATransmitCplt;
mbed_official	376:cb4d9db17537	913
mbed_official	376:cb4d9db17537	914	/* Set the UART DMA Half transfer complete callback */
mbed_official	376:cb4d9db17537	915	huart->hdmatx->XferHalfCpltCallback = UART_DMATxHalfCplt;
mbed_official	376:cb4d9db17537	916
mbed_official	376:cb4d9db17537	917	/* Set the DMA error callback */
mbed_official	376:cb4d9db17537	918	huart->hdmatx->XferErrorCallback = UART_DMAError;
mbed_official	376:cb4d9db17537	919
mbed_official	376:cb4d9db17537	920	/* Enable the UART transmit DMA Stream */
mbed_official	376:cb4d9db17537	921	tmp = (uint32_t*)&pData;
mbed_official	376:cb4d9db17537	922	HAL_DMA_Start_IT(huart->hdmatx, (uint32_t)tmp, (uint32_t)&huart->Instance->TDR, Size);
mbed_official	376:cb4d9db17537	923
mbed_official	376:cb4d9db17537	924	/* Enable the DMA transfer for transmit request by setting the DMAT bit
mbed_official	376:cb4d9db17537	925	in the UART CR3 register */
mbed_official	376:cb4d9db17537	926	huart->Instance->CR3 \|= USART_CR3_DMAT;
mbed_official	376:cb4d9db17537	927
mbed_official	376:cb4d9db17537	928	/* Process Unlocked */
mbed_official	376:cb4d9db17537	929	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	930
mbed_official	376:cb4d9db17537	931	return HAL_OK;
mbed_official	376:cb4d9db17537	932	}
mbed_official	376:cb4d9db17537	933	else
mbed_official	376:cb4d9db17537	934	{
mbed_official	376:cb4d9db17537	935	return HAL_BUSY;
mbed_official	376:cb4d9db17537	936	}
mbed_official	376:cb4d9db17537	937	}
mbed_official	376:cb4d9db17537	938
mbed_official	376:cb4d9db17537	939	/**
mbed_official	376:cb4d9db17537	940	* @brief Receive an amount of data in DMA mode
mbed_official	376:cb4d9db17537	941	* @param huart: uart handle
mbed_official	376:cb4d9db17537	942	* @param pData: pointer to data buffer
mbed_official	376:cb4d9db17537	943	* @param Size: amount of data to be received
mbed_official	376:cb4d9db17537	944	* @note When the UART parity is enabled (PCE = 1) the data received contain the parity bit.
mbed_official	376:cb4d9db17537	945	* @retval HAL status
mbed_official	376:cb4d9db17537	946	*/
mbed_official	376:cb4d9db17537	947	HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	376:cb4d9db17537	948	{
mbed_official	376:cb4d9db17537	949	uint32_t *tmp;
mbed_official	376:cb4d9db17537	950
mbed_official	376:cb4d9db17537	951	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official	376:cb4d9db17537	952	{
mbed_official	387:643a59b3dbac	953	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	376:cb4d9db17537	954	{
mbed_official	376:cb4d9db17537	955	return HAL_ERROR;
mbed_official	376:cb4d9db17537	956	}
mbed_official	376:cb4d9db17537	957
mbed_official	376:cb4d9db17537	958	/* Process Locked */
mbed_official	376:cb4d9db17537	959	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	960
mbed_official	376:cb4d9db17537	961	huart->pRxBuffPtr = pData;
mbed_official	376:cb4d9db17537	962	huart->RxXferSize = Size;
mbed_official	376:cb4d9db17537	963
mbed_official	376:cb4d9db17537	964	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	376:cb4d9db17537	965	/* Check if a transmit process is ongoing or not */
mbed_official	376:cb4d9db17537	966	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	376:cb4d9db17537	967	{
mbed_official	376:cb4d9db17537	968	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	376:cb4d9db17537	969	}
mbed_official	376:cb4d9db17537	970	else
mbed_official	376:cb4d9db17537	971	{
mbed_official	376:cb4d9db17537	972	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	376:cb4d9db17537	973	}
mbed_official	376:cb4d9db17537	974
mbed_official	376:cb4d9db17537	975	/* Set the UART DMA transfert complete callback */
mbed_official	376:cb4d9db17537	976	huart->hdmarx->XferCpltCallback = UART_DMAReceiveCplt;
mbed_official	376:cb4d9db17537	977
mbed_official	376:cb4d9db17537	978	/* Set the UART DMA Half transfer complete callback */
mbed_official	376:cb4d9db17537	979	huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt;
mbed_official	376:cb4d9db17537	980
mbed_official	376:cb4d9db17537	981	/* Set the DMA error callback */
mbed_official	376:cb4d9db17537	982	huart->hdmarx->XferErrorCallback = UART_DMAError;
mbed_official	376:cb4d9db17537	983
mbed_official	376:cb4d9db17537	984	/* Enable the DMA Stream */
mbed_official	376:cb4d9db17537	985	tmp = (uint32_t*)&pData;
mbed_official	376:cb4d9db17537	986	HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->RDR, (uint32_t)tmp, Size);
mbed_official	376:cb4d9db17537	987
mbed_official	376:cb4d9db17537	988	/* Enable the DMA transfer for the receiver request by setting the DMAR bit
mbed_official	376:cb4d9db17537	989	in the UART CR3 register */
mbed_official	376:cb4d9db17537	990	huart->Instance->CR3 \|= USART_CR3_DMAR;
mbed_official	376:cb4d9db17537	991
mbed_official	376:cb4d9db17537	992	/* Process Unlocked */
mbed_official	376:cb4d9db17537	993	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	994
mbed_official	376:cb4d9db17537	995	return HAL_OK;
mbed_official	376:cb4d9db17537	996	}
mbed_official	376:cb4d9db17537	997	else
mbed_official	376:cb4d9db17537	998	{
mbed_official	376:cb4d9db17537	999	return HAL_BUSY;
mbed_official	376:cb4d9db17537	1000	}
mbed_official	376:cb4d9db17537	1001	}
mbed_official	376:cb4d9db17537	1002
mbed_official	376:cb4d9db17537	1003	/**
mbed_official	376:cb4d9db17537	1004	* @brief Pauses the DMA Transfer.
mbed_official	376:cb4d9db17537	1005	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1006	* @retval None
mbed_official	376:cb4d9db17537	1007	*/
mbed_official	376:cb4d9db17537	1008	HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1009	{
mbed_official	376:cb4d9db17537	1010	/* Process Locked */
mbed_official	376:cb4d9db17537	1011	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	1012
mbed_official	376:cb4d9db17537	1013	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	376:cb4d9db17537	1014	{
mbed_official	376:cb4d9db17537	1015	/* Disable the UART DMA Tx request */
mbed_official	376:cb4d9db17537	1016	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official	376:cb4d9db17537	1017	}
mbed_official	376:cb4d9db17537	1018	else if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	376:cb4d9db17537	1019	{
mbed_official	376:cb4d9db17537	1020	/* Disable the UART DMA Rx request */
mbed_official	376:cb4d9db17537	1021	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official	376:cb4d9db17537	1022	}
mbed_official	376:cb4d9db17537	1023	else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	376:cb4d9db17537	1024	{
mbed_official	376:cb4d9db17537	1025	/* Disable the UART DMA Tx request */
mbed_official	376:cb4d9db17537	1026	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official	376:cb4d9db17537	1027	/* Disable the UART DMA Rx request */
mbed_official	376:cb4d9db17537	1028	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official	376:cb4d9db17537	1029	}
mbed_official	376:cb4d9db17537	1030	/* Process Unlocked */
mbed_official	376:cb4d9db17537	1031	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	1032
mbed_official	376:cb4d9db17537	1033	return HAL_OK;
mbed_official	376:cb4d9db17537	1034	}
mbed_official	376:cb4d9db17537	1035
mbed_official	376:cb4d9db17537	1036	/**
mbed_official	376:cb4d9db17537	1037	* @brief Resumes the DMA Transfer.
mbed_official	376:cb4d9db17537	1038	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1039	* @retval None
mbed_official	376:cb4d9db17537	1040	*/
mbed_official	376:cb4d9db17537	1041	HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1042	{
mbed_official	376:cb4d9db17537	1043	/* Process Locked */
mbed_official	376:cb4d9db17537	1044	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	1045
mbed_official	376:cb4d9db17537	1046	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	376:cb4d9db17537	1047	{
mbed_official	376:cb4d9db17537	1048	/* Enable the UART DMA Tx request */
mbed_official	376:cb4d9db17537	1049	huart->Instance->CR3 \|= USART_CR3_DMAT;
mbed_official	376:cb4d9db17537	1050	}
mbed_official	376:cb4d9db17537	1051	else if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	376:cb4d9db17537	1052	{
mbed_official	376:cb4d9db17537	1053	/* Clear the Overrun flag before resumming the Rx transfer*/
mbed_official	376:cb4d9db17537	1054	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
mbed_official	376:cb4d9db17537	1055
mbed_official	376:cb4d9db17537	1056	/* Enable the UART DMA Rx request */
mbed_official	376:cb4d9db17537	1057	huart->Instance->CR3 \|= USART_CR3_DMAR;
mbed_official	376:cb4d9db17537	1058	}
mbed_official	376:cb4d9db17537	1059	else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	376:cb4d9db17537	1060	{
mbed_official	376:cb4d9db17537	1061	/* Clear the Overrun flag before resumming the Rx transfer*/
mbed_official	376:cb4d9db17537	1062	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
mbed_official	376:cb4d9db17537	1063
mbed_official	376:cb4d9db17537	1064	/* Enable the UART DMA Rx request before the DMA Tx request */
mbed_official	376:cb4d9db17537	1065	huart->Instance->CR3 \|= USART_CR3_DMAR;
mbed_official	376:cb4d9db17537	1066
mbed_official	376:cb4d9db17537	1067	/* Enable the UART DMA Tx request */
mbed_official	376:cb4d9db17537	1068	huart->Instance->CR3 \|= USART_CR3_DMAT;
mbed_official	376:cb4d9db17537	1069	}
mbed_official	376:cb4d9db17537	1070
mbed_official	376:cb4d9db17537	1071	/* Process Unlocked */
mbed_official	376:cb4d9db17537	1072	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	1073
mbed_official	376:cb4d9db17537	1074	return HAL_OK;
mbed_official	376:cb4d9db17537	1075	}
mbed_official	376:cb4d9db17537	1076
mbed_official	376:cb4d9db17537	1077	/**
mbed_official	376:cb4d9db17537	1078	* @brief Stops the DMA Transfer.
mbed_official	376:cb4d9db17537	1079	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1080	* @retval None
mbed_official	376:cb4d9db17537	1081	*/
mbed_official	376:cb4d9db17537	1082	HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1083	{
mbed_official	376:cb4d9db17537	1084	/* The Lock is not implemented on this API to allow the user application
mbed_official	376:cb4d9db17537	1085	to call the HAL UART API under callbacks HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback():
mbed_official	376:cb4d9db17537	1086	when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
mbed_official	376:cb4d9db17537	1087	and the correspond call back is executed HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback()
mbed_official	376:cb4d9db17537	1088	*/
mbed_official	376:cb4d9db17537	1089
mbed_official	376:cb4d9db17537	1090	/* Disable the UART Tx/Rx DMA requests */
mbed_official	376:cb4d9db17537	1091	huart->Instance->CR3 &= ~USART_CR3_DMAT;
mbed_official	376:cb4d9db17537	1092	huart->Instance->CR3 &= ~USART_CR3_DMAR;
mbed_official	376:cb4d9db17537	1093
mbed_official	376:cb4d9db17537	1094	/* Abort the UART DMA tx channel */
mbed_official	387:643a59b3dbac	1095	if(huart->hdmatx != HAL_NULL)
mbed_official	376:cb4d9db17537	1096	{
mbed_official	376:cb4d9db17537	1097	HAL_DMA_Abort(huart->hdmatx);
mbed_official	376:cb4d9db17537	1098	}
mbed_official	376:cb4d9db17537	1099	/* Abort the UART DMA rx channel */
mbed_official	387:643a59b3dbac	1100	if(huart->hdmarx != HAL_NULL)
mbed_official	376:cb4d9db17537	1101	{
mbed_official	376:cb4d9db17537	1102	HAL_DMA_Abort(huart->hdmarx);
mbed_official	376:cb4d9db17537	1103	}
mbed_official	376:cb4d9db17537	1104
mbed_official	376:cb4d9db17537	1105	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1106
mbed_official	376:cb4d9db17537	1107	return HAL_OK;
mbed_official	376:cb4d9db17537	1108	}
mbed_official	376:cb4d9db17537	1109
mbed_official	376:cb4d9db17537	1110	/**
mbed_official	376:cb4d9db17537	1111	* @brief This function handles UART interrupt request.
mbed_official	376:cb4d9db17537	1112	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1113	* @retval None
mbed_official	376:cb4d9db17537	1114	*/
mbed_official	376:cb4d9db17537	1115	void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1116	{
mbed_official	376:cb4d9db17537	1117	/* UART parity error interrupt occurred ------------------------------------*/
mbed_official	376:cb4d9db17537	1118	if((__HAL_UART_GET_IT(huart, UART_IT_PE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_PE) != RESET))
mbed_official	376:cb4d9db17537	1119	{
mbed_official	376:cb4d9db17537	1120	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_PEF);
mbed_official	376:cb4d9db17537	1121
mbed_official	376:cb4d9db17537	1122	huart->ErrorCode \|= HAL_UART_ERROR_PE;
mbed_official	376:cb4d9db17537	1123	/* Set the UART state ready to be able to start again the process */
mbed_official	376:cb4d9db17537	1124	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1125	}
mbed_official	376:cb4d9db17537	1126
mbed_official	376:cb4d9db17537	1127	/* UART frame error interrupt occured --------------------------------------*/
mbed_official	376:cb4d9db17537	1128	if((__HAL_UART_GET_IT(huart, UART_IT_FE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
mbed_official	376:cb4d9db17537	1129	{
mbed_official	376:cb4d9db17537	1130	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_FEF);
mbed_official	376:cb4d9db17537	1131
mbed_official	376:cb4d9db17537	1132	huart->ErrorCode \|= HAL_UART_ERROR_FE;
mbed_official	376:cb4d9db17537	1133	/* Set the UART state ready to be able to start again the process */
mbed_official	376:cb4d9db17537	1134	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1135	}
mbed_official	376:cb4d9db17537	1136
mbed_official	376:cb4d9db17537	1137	/* UART noise error interrupt occured --------------------------------------*/
mbed_official	376:cb4d9db17537	1138	if((__HAL_UART_GET_IT(huart, UART_IT_NE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
mbed_official	376:cb4d9db17537	1139	{
mbed_official	376:cb4d9db17537	1140	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_NEF);
mbed_official	376:cb4d9db17537	1141
mbed_official	376:cb4d9db17537	1142	huart->ErrorCode \|= HAL_UART_ERROR_NE;
mbed_official	376:cb4d9db17537	1143	/* Set the UART state ready to be able to start again the process */
mbed_official	376:cb4d9db17537	1144	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1145	}
mbed_official	376:cb4d9db17537	1146
mbed_official	376:cb4d9db17537	1147	/* UART Over-Run interrupt occured -----------------------------------------*/
mbed_official	376:cb4d9db17537	1148	if((__HAL_UART_GET_IT(huart, UART_IT_ORE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
mbed_official	376:cb4d9db17537	1149	{
mbed_official	376:cb4d9db17537	1150	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
mbed_official	376:cb4d9db17537	1151
mbed_official	376:cb4d9db17537	1152	huart->ErrorCode \|= HAL_UART_ERROR_ORE;
mbed_official	376:cb4d9db17537	1153	/* Set the UART state ready to be able to start again the process */
mbed_official	376:cb4d9db17537	1154	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1155	}
mbed_official	376:cb4d9db17537	1156
mbed_official	376:cb4d9db17537	1157	/* Call UART Error Call back function if need be --------------------------*/
mbed_official	376:cb4d9db17537	1158	if(huart->ErrorCode != HAL_UART_ERROR_NONE)
mbed_official	376:cb4d9db17537	1159	{
mbed_official	376:cb4d9db17537	1160	HAL_UART_ErrorCallback(huart);
mbed_official	376:cb4d9db17537	1161	}
mbed_official	376:cb4d9db17537	1162
mbed_official	376:cb4d9db17537	1163	/* UART Wake Up interrupt occured ------------------------------------------*/
mbed_official	376:cb4d9db17537	1164	if((__HAL_UART_GET_IT(huart, UART_IT_WUF) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_WUF) != RESET))
mbed_official	376:cb4d9db17537	1165	{
mbed_official	376:cb4d9db17537	1166	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_WUF);
mbed_official	376:cb4d9db17537	1167	/* Set the UART state ready to be able to start again the process */
mbed_official	376:cb4d9db17537	1168	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1169	HAL_UARTEx_WakeupCallback(huart);
mbed_official	376:cb4d9db17537	1170	}
mbed_official	376:cb4d9db17537	1171
mbed_official	376:cb4d9db17537	1172	/* UART in mode Receiver ---------------------------------------------------*/
mbed_official	376:cb4d9db17537	1173	if((__HAL_UART_GET_IT(huart, UART_IT_RXNE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_RXNE) != RESET))
mbed_official	376:cb4d9db17537	1174	{
mbed_official	376:cb4d9db17537	1175	UART_Receive_IT(huart);
mbed_official	376:cb4d9db17537	1176	}
mbed_official	376:cb4d9db17537	1177
mbed_official	376:cb4d9db17537	1178	/* UART in mode Transmitter ------------------------------------------------*/
mbed_official	376:cb4d9db17537	1179	if((__HAL_UART_GET_IT(huart, UART_IT_TXE) != RESET) &&(__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TXE) != RESET))
mbed_official	376:cb4d9db17537	1180	{
mbed_official	376:cb4d9db17537	1181	UART_Transmit_IT(huart);
mbed_official	376:cb4d9db17537	1182	}
mbed_official	376:cb4d9db17537	1183
mbed_official	376:cb4d9db17537	1184	if(huart->ErrorCode != HAL_UART_ERROR_NONE)
mbed_official	376:cb4d9db17537	1185	{
mbed_official	376:cb4d9db17537	1186	HAL_UART_ErrorCallback(huart);
mbed_official	376:cb4d9db17537	1187	}
mbed_official	376:cb4d9db17537	1188	}
mbed_official	376:cb4d9db17537	1189
mbed_official	376:cb4d9db17537	1190	/**
mbed_official	376:cb4d9db17537	1191	* @brief Tx Transfer completed callbacks
mbed_official	376:cb4d9db17537	1192	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1193	* @retval None
mbed_official	376:cb4d9db17537	1194	*/
mbed_official	376:cb4d9db17537	1195	__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1196	{
mbed_official	376:cb4d9db17537	1197	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	376:cb4d9db17537	1198	the HAL_UART_TxCpltCallback could be implemented in the user file
mbed_official	376:cb4d9db17537	1199	*/
mbed_official	376:cb4d9db17537	1200	}
mbed_official	376:cb4d9db17537	1201
mbed_official	376:cb4d9db17537	1202	/**
mbed_official	376:cb4d9db17537	1203	* @brief Tx Half Transfer completed callbacks.
mbed_official	376:cb4d9db17537	1204	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1205	* @retval None
mbed_official	376:cb4d9db17537	1206	*/
mbed_official	376:cb4d9db17537	1207	__weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1208	{
mbed_official	376:cb4d9db17537	1209	/* NOTE: This function Should not be modified, when the callback is needed,
mbed_official	376:cb4d9db17537	1210	the HAL_UART_TxCpltCallback could be implemented in the user file
mbed_official	376:cb4d9db17537	1211	*/
mbed_official	376:cb4d9db17537	1212	}
mbed_official	376:cb4d9db17537	1213
mbed_official	376:cb4d9db17537	1214	/**
mbed_official	376:cb4d9db17537	1215	* @brief Rx Transfer completed callbacks
mbed_official	376:cb4d9db17537	1216	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1217	* @retval None
mbed_official	376:cb4d9db17537	1218	*/
mbed_official	376:cb4d9db17537	1219	__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1220	{
mbed_official	376:cb4d9db17537	1221	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	376:cb4d9db17537	1222	the HAL_UART_TxCpltCallback could be implemented in the user file
mbed_official	376:cb4d9db17537	1223	*/
mbed_official	376:cb4d9db17537	1224	}
mbed_official	376:cb4d9db17537	1225
mbed_official	376:cb4d9db17537	1226	/**
mbed_official	376:cb4d9db17537	1227	* @brief Rx Half Transfer completed callbacks.
mbed_official	376:cb4d9db17537	1228	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1229	* @retval None
mbed_official	376:cb4d9db17537	1230	*/
mbed_official	376:cb4d9db17537	1231	__weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1232	{
mbed_official	376:cb4d9db17537	1233	/* NOTE: This function Should not be modified, when the callback is needed,
mbed_official	376:cb4d9db17537	1234	the HAL_UART_TxCpltCallback could be implemented in the user file
mbed_official	376:cb4d9db17537	1235	*/
mbed_official	376:cb4d9db17537	1236	}
mbed_official	376:cb4d9db17537	1237
mbed_official	376:cb4d9db17537	1238	/**
mbed_official	376:cb4d9db17537	1239	* @brief UART error callbacks
mbed_official	376:cb4d9db17537	1240	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1241	* @retval None
mbed_official	376:cb4d9db17537	1242	*/
mbed_official	376:cb4d9db17537	1243	__weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1244	{
mbed_official	376:cb4d9db17537	1245	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	376:cb4d9db17537	1246	the HAL_UART_ErrorCallback can be implemented in the user file
mbed_official	376:cb4d9db17537	1247	*/
mbed_official	376:cb4d9db17537	1248	}
mbed_official	376:cb4d9db17537	1249
mbed_official	376:cb4d9db17537	1250
mbed_official	376:cb4d9db17537	1251	/**
mbed_official	376:cb4d9db17537	1252	* @}
mbed_official	376:cb4d9db17537	1253	*/
mbed_official	376:cb4d9db17537	1254
mbed_official	376:cb4d9db17537	1255	/** @defgroup UART_Group3 Peripheral Control funtions
mbed_official	376:cb4d9db17537	1256	* @brief UART control functions
mbed_official	376:cb4d9db17537	1257	*
mbed_official	376:cb4d9db17537	1258	@verbatim
mbed_official	376:cb4d9db17537	1259	===============================================================================
mbed_official	376:cb4d9db17537	1260	##### Peripheral Control functions #####
mbed_official	376:cb4d9db17537	1261	===============================================================================
mbed_official	376:cb4d9db17537	1262	[..]
mbed_official	376:cb4d9db17537	1263	This subsection provides a set of functions allowing to control the UART.
mbed_official	376:cb4d9db17537	1264	(+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
mbed_official	376:cb4d9db17537	1265	(+) HAL_MultiProcessor_DisableMuteMode() API disables mute mode
mbed_official	376:cb4d9db17537	1266	(+) HAL_MultiProcessor_EnterMuteMode() API enters mute mode
mbed_official	376:cb4d9db17537	1267	(+) HAL_HalfDuplex_EnableTransmitter() API enables the transmitter
mbed_official	376:cb4d9db17537	1268	(+) HAL_HalfDuplex_EnableReceiver() API enables the receiver
mbed_official	376:cb4d9db17537	1269	(+) HAL_UART_GetState() API is helpful to check in run-time the state of the UART peripheral
mbed_official	376:cb4d9db17537	1270	(+) HAL_UART_GetError()API is helpful to check in run-time the error state of the UART peripheral
mbed_official	376:cb4d9db17537	1271	@endverbatim
mbed_official	376:cb4d9db17537	1272	* @{
mbed_official	376:cb4d9db17537	1273	*/
mbed_official	376:cb4d9db17537	1274
mbed_official	376:cb4d9db17537	1275	/**
mbed_official	376:cb4d9db17537	1276	* @brief Enable UART in mute mode (doesn't mean UART enters mute mode;
mbed_official	376:cb4d9db17537	1277	* to enter mute mode, HAL_MultiProcessor_EnterMuteMode() API must be called)
mbed_official	376:cb4d9db17537	1278	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1279	* @retval HAL status
mbed_official	376:cb4d9db17537	1280	*/
mbed_official	376:cb4d9db17537	1281	HAL_StatusTypeDef HAL_MultiProcessor_EnableMuteMode(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1282	{
mbed_official	376:cb4d9db17537	1283	/* Process Locked */
mbed_official	376:cb4d9db17537	1284	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	1285
mbed_official	376:cb4d9db17537	1286	huart->State = HAL_UART_STATE_BUSY;
mbed_official	376:cb4d9db17537	1287
mbed_official	376:cb4d9db17537	1288	/* Enable USART mute mode by setting the MME bit in the CR1 register */
mbed_official	376:cb4d9db17537	1289	huart->Instance->CR1 \|= USART_CR1_MME;
mbed_official	376:cb4d9db17537	1290
mbed_official	376:cb4d9db17537	1291	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1292
mbed_official	376:cb4d9db17537	1293	return (UART_CheckIdleState(huart));
mbed_official	376:cb4d9db17537	1294	}
mbed_official	376:cb4d9db17537	1295
mbed_official	376:cb4d9db17537	1296	/**
mbed_official	376:cb4d9db17537	1297	* @brief Disable UART mute mode (doesn't mean it actually wakes up the software,
mbed_official	376:cb4d9db17537	1298	* as it may not have been in mute mode at this very moment).
mbed_official	376:cb4d9db17537	1299	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1300	* @retval HAL status
mbed_official	376:cb4d9db17537	1301	*/
mbed_official	376:cb4d9db17537	1302	HAL_StatusTypeDef HAL_MultiProcessor_DisableMuteMode(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1303	{
mbed_official	376:cb4d9db17537	1304	/* Process Locked */
mbed_official	376:cb4d9db17537	1305	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	1306
mbed_official	376:cb4d9db17537	1307	huart->State = HAL_UART_STATE_BUSY;
mbed_official	376:cb4d9db17537	1308
mbed_official	376:cb4d9db17537	1309	/* Disable USART mute mode by clearing the MME bit in the CR1 register */
mbed_official	376:cb4d9db17537	1310	huart->Instance->CR1 &= ~(USART_CR1_MME);
mbed_official	376:cb4d9db17537	1311
mbed_official	376:cb4d9db17537	1312	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1313
mbed_official	376:cb4d9db17537	1314	return (UART_CheckIdleState(huart));
mbed_official	376:cb4d9db17537	1315	}
mbed_official	376:cb4d9db17537	1316
mbed_official	376:cb4d9db17537	1317	/**
mbed_official	376:cb4d9db17537	1318	* @brief Enter UART mute mode (means UART actually enters mute mode).
mbed_official	376:cb4d9db17537	1319	* To exit from mute mode, HAL_MultiProcessor_DisableMuteMode() API must be called.
mbed_official	376:cb4d9db17537	1320	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1321	* @retval HAL status
mbed_official	376:cb4d9db17537	1322	*/
mbed_official	376:cb4d9db17537	1323	void HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1324	{
mbed_official	376:cb4d9db17537	1325	__HAL_UART_SEND_REQ(huart, UART_MUTE_MODE_REQUEST);
mbed_official	376:cb4d9db17537	1326	}
mbed_official	376:cb4d9db17537	1327
mbed_official	376:cb4d9db17537	1328	/**
mbed_official	376:cb4d9db17537	1329	* @brief Enables the UART transmitter and disables the UART receiver.
mbed_official	376:cb4d9db17537	1330	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1331	* @retval HAL status
mbed_official	376:cb4d9db17537	1332	* @retval None
mbed_official	376:cb4d9db17537	1333	*/
mbed_official	376:cb4d9db17537	1334	HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1335	{
mbed_official	376:cb4d9db17537	1336	/* Process Locked */
mbed_official	376:cb4d9db17537	1337	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	1338	huart->State = HAL_UART_STATE_BUSY;
mbed_official	376:cb4d9db17537	1339
mbed_official	376:cb4d9db17537	1340	/* Clear TE and RE bits */
mbed_official	376:cb4d9db17537	1341	CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE \| USART_CR1_RE));
mbed_official	376:cb4d9db17537	1342	/* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
mbed_official	376:cb4d9db17537	1343	SET_BIT(huart->Instance->CR1, USART_CR1_TE);
mbed_official	376:cb4d9db17537	1344
mbed_official	376:cb4d9db17537	1345	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1346	/* Process Unlocked */
mbed_official	376:cb4d9db17537	1347	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	1348
mbed_official	376:cb4d9db17537	1349	return HAL_OK;
mbed_official	376:cb4d9db17537	1350	}
mbed_official	376:cb4d9db17537	1351
mbed_official	376:cb4d9db17537	1352	/**
mbed_official	376:cb4d9db17537	1353	* @brief Enables the UART receiver and disables the UART transmitter.
mbed_official	376:cb4d9db17537	1354	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1355	* @retval HAL status
mbed_official	376:cb4d9db17537	1356	*/
mbed_official	376:cb4d9db17537	1357	HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1358	{
mbed_official	376:cb4d9db17537	1359	/* Process Locked */
mbed_official	376:cb4d9db17537	1360	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	1361	huart->State = HAL_UART_STATE_BUSY;
mbed_official	376:cb4d9db17537	1362
mbed_official	376:cb4d9db17537	1363	/* Clear TE and RE bits */
mbed_official	376:cb4d9db17537	1364	CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE \| USART_CR1_RE));
mbed_official	376:cb4d9db17537	1365	/* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
mbed_official	376:cb4d9db17537	1366	SET_BIT(huart->Instance->CR1, USART_CR1_RE);
mbed_official	376:cb4d9db17537	1367
mbed_official	376:cb4d9db17537	1368	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1369	/* Process Unlocked */
mbed_official	376:cb4d9db17537	1370	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	1371
mbed_official	376:cb4d9db17537	1372	return HAL_OK;
mbed_official	376:cb4d9db17537	1373	}
mbed_official	376:cb4d9db17537	1374
mbed_official	376:cb4d9db17537	1375	/**
mbed_official	376:cb4d9db17537	1376	* @brief Transmits break characters.
mbed_official	376:cb4d9db17537	1377	* @param huart: pointer to a UART_HandleTypeDef structure that contains
mbed_official	376:cb4d9db17537	1378	* the configuration information for the specified UART module.
mbed_official	376:cb4d9db17537	1379	* @retval HAL status
mbed_official	376:cb4d9db17537	1380	*/
mbed_official	376:cb4d9db17537	1381	HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1382	{
mbed_official	376:cb4d9db17537	1383	/* Check the parameters */
mbed_official	376:cb4d9db17537	1384	assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official	376:cb4d9db17537	1385
mbed_official	376:cb4d9db17537	1386	/* Process Locked */
mbed_official	376:cb4d9db17537	1387	__HAL_LOCK(huart);
mbed_official	376:cb4d9db17537	1388
mbed_official	376:cb4d9db17537	1389	huart->State = HAL_UART_STATE_BUSY;
mbed_official	376:cb4d9db17537	1390
mbed_official	376:cb4d9db17537	1391	/* Send break characters */
mbed_official	376:cb4d9db17537	1392	huart->Instance->RQR \|= USART_RQR_SBKRQ;
mbed_official	376:cb4d9db17537	1393
mbed_official	376:cb4d9db17537	1394	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1395
mbed_official	376:cb4d9db17537	1396	/* Process Unlocked */
mbed_official	376:cb4d9db17537	1397	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	1398
mbed_official	376:cb4d9db17537	1399	return HAL_OK;
mbed_official	376:cb4d9db17537	1400	}
mbed_official	376:cb4d9db17537	1401
mbed_official	376:cb4d9db17537	1402	/**
mbed_official	376:cb4d9db17537	1403	* @brief return the UART state
mbed_official	376:cb4d9db17537	1404	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1405	* @retval HAL state
mbed_official	376:cb4d9db17537	1406	*/
mbed_official	376:cb4d9db17537	1407	HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1408	{
mbed_official	376:cb4d9db17537	1409	return huart->State;
mbed_official	376:cb4d9db17537	1410	}
mbed_official	376:cb4d9db17537	1411
mbed_official	376:cb4d9db17537	1412	/**
mbed_official	376:cb4d9db17537	1413	* @brief Return the UART error code
mbed_official	376:cb4d9db17537	1414	* @param huart : pointer to a UART_HandleTypeDef structure that contains
mbed_official	376:cb4d9db17537	1415	* the configuration information for the specified UART.
mbed_official	376:cb4d9db17537	1416	* @retval UART Error Code
mbed_official	376:cb4d9db17537	1417	*/
mbed_official	376:cb4d9db17537	1418	uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1419	{
mbed_official	376:cb4d9db17537	1420	return huart->ErrorCode;
mbed_official	376:cb4d9db17537	1421	}
mbed_official	376:cb4d9db17537	1422
mbed_official	376:cb4d9db17537	1423	/**
mbed_official	376:cb4d9db17537	1424	* @}
mbed_official	376:cb4d9db17537	1425	*/
mbed_official	376:cb4d9db17537	1426
mbed_official	376:cb4d9db17537	1427	/**
mbed_official	376:cb4d9db17537	1428	* @brief DMA UART transmit process complete callback
mbed_official	376:cb4d9db17537	1429	* @param hdma: DMA handle
mbed_official	376:cb4d9db17537	1430	* @retval None
mbed_official	376:cb4d9db17537	1431	*/
mbed_official	376:cb4d9db17537	1432	static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
mbed_official	376:cb4d9db17537	1433	{
mbed_official	376:cb4d9db17537	1434	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	376:cb4d9db17537	1435
mbed_official	376:cb4d9db17537	1436	/* DMA Normal mode*/
mbed_official	376:cb4d9db17537	1437	if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
mbed_official	376:cb4d9db17537	1438	{
mbed_official	376:cb4d9db17537	1439	huart->TxXferCount = 0;
mbed_official	376:cb4d9db17537	1440
mbed_official	376:cb4d9db17537	1441	/* Disable the DMA transfer for transmit request by setting the DMAT bit
mbed_official	376:cb4d9db17537	1442	in the UART CR3 register */
mbed_official	376:cb4d9db17537	1443	huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT);
mbed_official	376:cb4d9db17537	1444
mbed_official	376:cb4d9db17537	1445	/* Wait for UART TC Flag */
mbed_official	376:cb4d9db17537	1446	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official	376:cb4d9db17537	1447	{
mbed_official	376:cb4d9db17537	1448	/* Timeout Occured */
mbed_official	376:cb4d9db17537	1449	huart->State = HAL_UART_STATE_TIMEOUT;
mbed_official	376:cb4d9db17537	1450	HAL_UART_ErrorCallback(huart);
mbed_official	376:cb4d9db17537	1451	}
mbed_official	376:cb4d9db17537	1452	else
mbed_official	376:cb4d9db17537	1453	{
mbed_official	376:cb4d9db17537	1454	/* No Timeout */
mbed_official	376:cb4d9db17537	1455	/* Check if a receive process is ongoing or not */
mbed_official	376:cb4d9db17537	1456	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	376:cb4d9db17537	1457	{
mbed_official	376:cb4d9db17537	1458	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	376:cb4d9db17537	1459	}
mbed_official	376:cb4d9db17537	1460	else
mbed_official	376:cb4d9db17537	1461	{
mbed_official	376:cb4d9db17537	1462	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1463	}
mbed_official	376:cb4d9db17537	1464	HAL_UART_TxCpltCallback(huart);
mbed_official	376:cb4d9db17537	1465	}
mbed_official	376:cb4d9db17537	1466	}
mbed_official	376:cb4d9db17537	1467	/* DMA Circular mode */
mbed_official	376:cb4d9db17537	1468	else
mbed_official	376:cb4d9db17537	1469	{
mbed_official	376:cb4d9db17537	1470	HAL_UART_TxCpltCallback(huart);
mbed_official	376:cb4d9db17537	1471	}
mbed_official	376:cb4d9db17537	1472	}
mbed_official	376:cb4d9db17537	1473
mbed_official	376:cb4d9db17537	1474	/**
mbed_official	376:cb4d9db17537	1475	* @brief DMA UART transmit process half complete callback
mbed_official	376:cb4d9db17537	1476	* @param hdma : DMA handle
mbed_official	376:cb4d9db17537	1477	* @retval None
mbed_official	376:cb4d9db17537	1478	*/
mbed_official	376:cb4d9db17537	1479	static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official	376:cb4d9db17537	1480	{
mbed_official	376:cb4d9db17537	1481	UART_HandleTypeDef* huart = (UART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
mbed_official	376:cb4d9db17537	1482
mbed_official	376:cb4d9db17537	1483	HAL_UART_TxHalfCpltCallback(huart);
mbed_official	376:cb4d9db17537	1484	}
mbed_official	376:cb4d9db17537	1485
mbed_official	376:cb4d9db17537	1486	/**
mbed_official	376:cb4d9db17537	1487	* @brief DMA UART receive process complete callback
mbed_official	376:cb4d9db17537	1488	* @param hdma: DMA handle
mbed_official	376:cb4d9db17537	1489	* @retval None
mbed_official	376:cb4d9db17537	1490	*/
mbed_official	376:cb4d9db17537	1491	static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
mbed_official	376:cb4d9db17537	1492	{
mbed_official	376:cb4d9db17537	1493	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	376:cb4d9db17537	1494
mbed_official	376:cb4d9db17537	1495	/* DMA Normal mode*/
mbed_official	376:cb4d9db17537	1496	if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
mbed_official	376:cb4d9db17537	1497	{
mbed_official	376:cb4d9db17537	1498	huart->RxXferCount = 0;
mbed_official	376:cb4d9db17537	1499
mbed_official	376:cb4d9db17537	1500	/* Disable the DMA transfer for the receiver request by setting the DMAR bit
mbed_official	376:cb4d9db17537	1501	in the UART CR3 register */
mbed_official	376:cb4d9db17537	1502	huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAR);
mbed_official	376:cb4d9db17537	1503
mbed_official	376:cb4d9db17537	1504	/* Check if a transmit Process is ongoing or not */
mbed_official	376:cb4d9db17537	1505	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	376:cb4d9db17537	1506	{
mbed_official	376:cb4d9db17537	1507	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	376:cb4d9db17537	1508	}
mbed_official	376:cb4d9db17537	1509	else
mbed_official	376:cb4d9db17537	1510	{
mbed_official	376:cb4d9db17537	1511	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1512	}
mbed_official	376:cb4d9db17537	1513	}
mbed_official	376:cb4d9db17537	1514	HAL_UART_RxCpltCallback(huart);
mbed_official	376:cb4d9db17537	1515	}
mbed_official	376:cb4d9db17537	1516
mbed_official	376:cb4d9db17537	1517	/**
mbed_official	376:cb4d9db17537	1518	* @brief DMA UART receive process half complete callback
mbed_official	376:cb4d9db17537	1519	* @param hdma : DMA handle
mbed_official	376:cb4d9db17537	1520	* @retval None
mbed_official	376:cb4d9db17537	1521	*/
mbed_official	376:cb4d9db17537	1522	static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official	376:cb4d9db17537	1523	{
mbed_official	376:cb4d9db17537	1524	UART_HandleTypeDef* huart = (UART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
mbed_official	376:cb4d9db17537	1525
mbed_official	376:cb4d9db17537	1526	HAL_UART_RxHalfCpltCallback(huart);
mbed_official	376:cb4d9db17537	1527	}
mbed_official	376:cb4d9db17537	1528
mbed_official	376:cb4d9db17537	1529	/**
mbed_official	376:cb4d9db17537	1530	* @brief DMA UART communication error callback
mbed_official	376:cb4d9db17537	1531	* @param hdma: DMA handle
mbed_official	376:cb4d9db17537	1532	* @retval None
mbed_official	376:cb4d9db17537	1533	*/
mbed_official	376:cb4d9db17537	1534	static void UART_DMAError(DMA_HandleTypeDef *hdma)
mbed_official	376:cb4d9db17537	1535	{
mbed_official	376:cb4d9db17537	1536	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	376:cb4d9db17537	1537	huart->RxXferCount = 0;
mbed_official	376:cb4d9db17537	1538	huart->TxXferCount = 0;
mbed_official	376:cb4d9db17537	1539	huart->State= HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1540	huart->ErrorCode \|= HAL_UART_ERROR_DMA;
mbed_official	376:cb4d9db17537	1541	HAL_UART_ErrorCallback(huart);
mbed_official	376:cb4d9db17537	1542	}
mbed_official	376:cb4d9db17537	1543
mbed_official	376:cb4d9db17537	1544	/**
mbed_official	376:cb4d9db17537	1545	* @brief Send an amount of data in interrupt mode
mbed_official	376:cb4d9db17537	1546	* Function called under interruption only, once
mbed_official	376:cb4d9db17537	1547	* interruptions have been enabled by HAL_UART_Transmit_IT()
mbed_official	376:cb4d9db17537	1548	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1549	* @retval HAL status
mbed_official	376:cb4d9db17537	1550	*/
mbed_official	376:cb4d9db17537	1551	static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1552	{
mbed_official	376:cb4d9db17537	1553	uint16_t* tmp;
mbed_official	376:cb4d9db17537	1554
mbed_official	376:cb4d9db17537	1555	if ((huart->State == HAL_UART_STATE_BUSY_TX) \|\| (huart->State == HAL_UART_STATE_BUSY_TX_RX))
mbed_official	376:cb4d9db17537	1556	{
mbed_official	376:cb4d9db17537	1557	if(huart->TxXferCount == 0)
mbed_official	376:cb4d9db17537	1558	{
mbed_official	376:cb4d9db17537	1559	/* Disable the UART TXE Interrupt */
mbed_official	376:cb4d9db17537	1560	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official	376:cb4d9db17537	1561
mbed_official	376:cb4d9db17537	1562	/* Check if a receive Process is ongoing or not */
mbed_official	376:cb4d9db17537	1563	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	376:cb4d9db17537	1564	{
mbed_official	376:cb4d9db17537	1565	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	376:cb4d9db17537	1566	}
mbed_official	376:cb4d9db17537	1567	else
mbed_official	376:cb4d9db17537	1568	{
mbed_official	376:cb4d9db17537	1569	/* Disable the UART Parity Error Interrupt */
mbed_official	376:cb4d9db17537	1570	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	376:cb4d9db17537	1571
mbed_official	376:cb4d9db17537	1572	/* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	376:cb4d9db17537	1573	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	376:cb4d9db17537	1574
mbed_official	376:cb4d9db17537	1575	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1576	}
mbed_official	376:cb4d9db17537	1577
mbed_official	376:cb4d9db17537	1578	/* Wait on TC flag to be able to start a second transfer */
mbed_official	376:cb4d9db17537	1579	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official	376:cb4d9db17537	1580	{
mbed_official	376:cb4d9db17537	1581	return HAL_TIMEOUT;
mbed_official	376:cb4d9db17537	1582	}
mbed_official	376:cb4d9db17537	1583
mbed_official	376:cb4d9db17537	1584	HAL_UART_TxCpltCallback(huart);
mbed_official	376:cb4d9db17537	1585
mbed_official	376:cb4d9db17537	1586	return HAL_OK;
mbed_official	376:cb4d9db17537	1587	}
mbed_official	376:cb4d9db17537	1588	else
mbed_official	376:cb4d9db17537	1589	{
mbed_official	376:cb4d9db17537	1590	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	376:cb4d9db17537	1591	{
mbed_official	376:cb4d9db17537	1592	tmp = (uint16_t*) huart->pTxBuffPtr;
mbed_official	376:cb4d9db17537	1593	huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
mbed_official	376:cb4d9db17537	1594	huart->pTxBuffPtr += 2;
mbed_official	376:cb4d9db17537	1595	}
mbed_official	376:cb4d9db17537	1596	else
mbed_official	376:cb4d9db17537	1597	{
mbed_official	376:cb4d9db17537	1598	huart->Instance->TDR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0xFF);
mbed_official	376:cb4d9db17537	1599	}
mbed_official	376:cb4d9db17537	1600
mbed_official	376:cb4d9db17537	1601	huart->TxXferCount--;
mbed_official	376:cb4d9db17537	1602
mbed_official	376:cb4d9db17537	1603	return HAL_OK;
mbed_official	376:cb4d9db17537	1604	}
mbed_official	376:cb4d9db17537	1605	}
mbed_official	376:cb4d9db17537	1606	else
mbed_official	376:cb4d9db17537	1607	{
mbed_official	376:cb4d9db17537	1608	return HAL_BUSY;
mbed_official	376:cb4d9db17537	1609	}
mbed_official	376:cb4d9db17537	1610	}
mbed_official	376:cb4d9db17537	1611
mbed_official	376:cb4d9db17537	1612	/**
mbed_official	376:cb4d9db17537	1613	* @brief Receive an amount of data in interrupt mode
mbed_official	376:cb4d9db17537	1614	* Function called under interruption only, once
mbed_official	376:cb4d9db17537	1615	* interruptions have been enabled by HAL_UART_Receive_IT()
mbed_official	376:cb4d9db17537	1616	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1617	* @retval HAL status
mbed_official	376:cb4d9db17537	1618	*/
mbed_official	376:cb4d9db17537	1619	static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1620	{
mbed_official	376:cb4d9db17537	1621	uint16_t* tmp;
mbed_official	376:cb4d9db17537	1622	uint16_t uhMask = huart->Mask;
mbed_official	376:cb4d9db17537	1623
mbed_official	376:cb4d9db17537	1624	if((huart->State == HAL_UART_STATE_BUSY_RX) \|\| (huart->State == HAL_UART_STATE_BUSY_TX_RX))
mbed_official	376:cb4d9db17537	1625	{
mbed_official	376:cb4d9db17537	1626	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	376:cb4d9db17537	1627	{
mbed_official	376:cb4d9db17537	1628	tmp = (uint16_t*) huart->pRxBuffPtr ;
mbed_official	376:cb4d9db17537	1629	*tmp = (uint16_t)(huart->Instance->RDR & uhMask);
mbed_official	376:cb4d9db17537	1630	huart->pRxBuffPtr +=2;
mbed_official	376:cb4d9db17537	1631	}
mbed_official	376:cb4d9db17537	1632	else
mbed_official	376:cb4d9db17537	1633	{
mbed_official	376:cb4d9db17537	1634	*huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
mbed_official	376:cb4d9db17537	1635	}
mbed_official	376:cb4d9db17537	1636
mbed_official	376:cb4d9db17537	1637	if(--huart->RxXferCount == 0)
mbed_official	376:cb4d9db17537	1638	{
mbed_official	376:cb4d9db17537	1639	while(HAL_IS_BIT_SET(huart->Instance->ISR, UART_FLAG_RXNE))
mbed_official	376:cb4d9db17537	1640	{
mbed_official	376:cb4d9db17537	1641	}
mbed_official	376:cb4d9db17537	1642	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official	376:cb4d9db17537	1643
mbed_official	376:cb4d9db17537	1644	/* Check if a transmit Process is ongoing or not */
mbed_official	376:cb4d9db17537	1645	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	376:cb4d9db17537	1646	{
mbed_official	376:cb4d9db17537	1647	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	376:cb4d9db17537	1648	}
mbed_official	376:cb4d9db17537	1649	else
mbed_official	376:cb4d9db17537	1650	{
mbed_official	376:cb4d9db17537	1651	/* Disable the UART Parity Error Interrupt */
mbed_official	376:cb4d9db17537	1652	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	376:cb4d9db17537	1653
mbed_official	376:cb4d9db17537	1654	/* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	376:cb4d9db17537	1655	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	376:cb4d9db17537	1656
mbed_official	376:cb4d9db17537	1657	huart->State = HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1658	}
mbed_official	376:cb4d9db17537	1659	HAL_UART_RxCpltCallback(huart);
mbed_official	376:cb4d9db17537	1660	return HAL_OK;
mbed_official	376:cb4d9db17537	1661	}
mbed_official	376:cb4d9db17537	1662	return HAL_OK;
mbed_official	376:cb4d9db17537	1663	}
mbed_official	376:cb4d9db17537	1664	else
mbed_official	376:cb4d9db17537	1665	{
mbed_official	376:cb4d9db17537	1666	return HAL_BUSY;
mbed_official	376:cb4d9db17537	1667	}
mbed_official	376:cb4d9db17537	1668	}
mbed_official	376:cb4d9db17537	1669
mbed_official	376:cb4d9db17537	1670	/**
mbed_official	376:cb4d9db17537	1671	* @brief Configure the UART peripheral
mbed_official	376:cb4d9db17537	1672	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1673	* @retval None
mbed_official	376:cb4d9db17537	1674	*/
mbed_official	376:cb4d9db17537	1675	void UART_SetConfig(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1676	{
mbed_official	376:cb4d9db17537	1677	uint32_t tmpreg = 0x00000000;
mbed_official	376:cb4d9db17537	1678	uint32_t clocksource = 0x00000000;
mbed_official	376:cb4d9db17537	1679	uint16_t brrtemp = 0x0000;
mbed_official	376:cb4d9db17537	1680	uint16_t usartdiv = 0x0000;
mbed_official	376:cb4d9db17537	1681
mbed_official	376:cb4d9db17537	1682	/* Check the parameters */
mbed_official	376:cb4d9db17537	1683	assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1684	assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
mbed_official	376:cb4d9db17537	1685	assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
mbed_official	376:cb4d9db17537	1686	assert_param(IS_UART_PARITY(huart->Init.Parity));
mbed_official	376:cb4d9db17537	1687	assert_param(IS_UART_MODE(huart->Init.Mode));
mbed_official	376:cb4d9db17537	1688	assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
mbed_official	376:cb4d9db17537	1689	assert_param(IS_UART_ONEBIT_SAMPLING(huart->Init.OneBitSampling));
mbed_official	376:cb4d9db17537	1690
mbed_official	376:cb4d9db17537	1691	/-------------------------- USART CR1 Configuration -----------------------/
mbed_official	376:cb4d9db17537	1692	/* Clear M, PCE, PS, TE, RE and OVER8 bits and configure
mbed_official	376:cb4d9db17537	1693	* the UART Word Length, Parity, Mode and oversampling:
mbed_official	376:cb4d9db17537	1694	* set the M bits according to huart->Init.WordLength value
mbed_official	376:cb4d9db17537	1695	* set PCE and PS bits according to huart->Init.Parity value
mbed_official	376:cb4d9db17537	1696	* set TE and RE bits according to huart->Init.Mode value
mbed_official	376:cb4d9db17537	1697	* set OVER8 bit according to huart->Init.OverSampling value */
mbed_official	376:cb4d9db17537	1698	tmpreg = (uint32_t)huart->Init.WordLength \| huart->Init.Parity \| huart->Init.Mode \| huart->Init.OverSampling ;
mbed_official	376:cb4d9db17537	1699	MODIFY_REG(huart->Instance->CR1, UART_CR1_FIELDS, tmpreg);
mbed_official	376:cb4d9db17537	1700
mbed_official	376:cb4d9db17537	1701	/-------------------------- USART CR2 Configuration -----------------------/
mbed_official	376:cb4d9db17537	1702	/* Configure the UART Stop Bits: Set STOP[13:12] bits according
mbed_official	376:cb4d9db17537	1703	* to huart->Init.StopBits value */
mbed_official	376:cb4d9db17537	1704	MODIFY_REG(huart->Instance->CR2, USART_CR2_STOP, huart->Init.StopBits);
mbed_official	376:cb4d9db17537	1705
mbed_official	376:cb4d9db17537	1706	/-------------------------- USART CR3 Configuration -----------------------/
mbed_official	376:cb4d9db17537	1707	/* Configure
mbed_official	376:cb4d9db17537	1708	* - UART HardWare Flow Control: set CTSE and RTSE bits according
mbed_official	376:cb4d9db17537	1709	* to huart->Init.HwFlowCtl value
mbed_official	376:cb4d9db17537	1710	* - one-bit sampling method versus three samples' majority rule according
mbed_official	376:cb4d9db17537	1711	* to huart->Init.OneBitSampling */
mbed_official	376:cb4d9db17537	1712	tmpreg = (uint32_t)huart->Init.HwFlowCtl \| huart->Init.OneBitSampling ;
mbed_official	376:cb4d9db17537	1713	MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE \| USART_CR3_CTSE \| USART_CR3_ONEBIT), tmpreg);
mbed_official	376:cb4d9db17537	1714
mbed_official	376:cb4d9db17537	1715	/-------------------------- USART BRR Configuration -----------------------/
mbed_official	376:cb4d9db17537	1716	__HAL_UART_GETCLOCKSOURCE(huart, clocksource);
mbed_official	376:cb4d9db17537	1717
mbed_official	376:cb4d9db17537	1718	/* Check LPUART instace */
mbed_official	376:cb4d9db17537	1719	if(huart->Instance == LPUART1)
mbed_official	376:cb4d9db17537	1720	{
mbed_official	376:cb4d9db17537	1721	switch (clocksource)
mbed_official	376:cb4d9db17537	1722	{
mbed_official	376:cb4d9db17537	1723	case UART_CLOCKSOURCE_PCLK1:
mbed_official	376:cb4d9db17537	1724	huart->Instance->BRR = (uint32_t)(__DIV_LPUART(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1725	break;
mbed_official	376:cb4d9db17537	1726	case UART_CLOCKSOURCE_HSI:
mbed_official	376:cb4d9db17537	1727	huart->Instance->BRR = (uint32_t)(__DIV_LPUART(HSI_VALUE, huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1728	break;
mbed_official	376:cb4d9db17537	1729	case UART_CLOCKSOURCE_SYSCLK:
mbed_official	376:cb4d9db17537	1730	huart->Instance->BRR = (uint32_t)(__DIV_LPUART(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1731	break;
mbed_official	376:cb4d9db17537	1732	case UART_CLOCKSOURCE_LSE:
mbed_official	376:cb4d9db17537	1733	huart->Instance->BRR = (uint32_t)(__DIV_LPUART(LSE_VALUE, huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1734	break;
mbed_official	376:cb4d9db17537	1735	default:
mbed_official	376:cb4d9db17537	1736	break;
mbed_official	376:cb4d9db17537	1737	}
mbed_official	376:cb4d9db17537	1738	}
mbed_official	376:cb4d9db17537	1739	/* Check the UART Over Sampling 8 to set Baud Rate Register */
mbed_official	376:cb4d9db17537	1740	else if (huart->Init.OverSampling == UART_OVERSAMPLING_8)
mbed_official	376:cb4d9db17537	1741	{
mbed_official	376:cb4d9db17537	1742	switch (clocksource)
mbed_official	376:cb4d9db17537	1743	{
mbed_official	376:cb4d9db17537	1744	case UART_CLOCKSOURCE_PCLK1:
mbed_official	376:cb4d9db17537	1745	usartdiv = (uint32_t)(__DIV_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1746	break;
mbed_official	376:cb4d9db17537	1747	case UART_CLOCKSOURCE_PCLK2:
mbed_official	376:cb4d9db17537	1748	usartdiv = (uint32_t)(__DIV_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1749	break;
mbed_official	376:cb4d9db17537	1750	case UART_CLOCKSOURCE_HSI:
mbed_official	376:cb4d9db17537	1751	usartdiv = (uint32_t)(__DIV_SAMPLING8(HSI_VALUE, huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1752	break;
mbed_official	376:cb4d9db17537	1753	case UART_CLOCKSOURCE_SYSCLK:
mbed_official	376:cb4d9db17537	1754	huart->Instance->BRR = (uint32_t)(__DIV_SAMPLING8(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1755	break;
mbed_official	376:cb4d9db17537	1756	case UART_CLOCKSOURCE_LSE:
mbed_official	376:cb4d9db17537	1757	usartdiv = (uint32_t)(__DIV_SAMPLING8(LSE_VALUE, huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1758	break;
mbed_official	376:cb4d9db17537	1759	default:
mbed_official	376:cb4d9db17537	1760	break;
mbed_official	376:cb4d9db17537	1761	}
mbed_official	376:cb4d9db17537	1762
mbed_official	376:cb4d9db17537	1763	brrtemp = usartdiv & 0xFFF0;
mbed_official	376:cb4d9db17537	1764	brrtemp \|= (uint16_t)((uint16_t)(usartdiv & (uint16_t)0x000F) >> (uint16_t)1);
mbed_official	376:cb4d9db17537	1765	huart->Instance->BRR = brrtemp;
mbed_official	376:cb4d9db17537	1766	}
mbed_official	376:cb4d9db17537	1767	else
mbed_official	376:cb4d9db17537	1768	{
mbed_official	376:cb4d9db17537	1769	switch (clocksource)
mbed_official	376:cb4d9db17537	1770	{
mbed_official	376:cb4d9db17537	1771	case UART_CLOCKSOURCE_PCLK1:
mbed_official	376:cb4d9db17537	1772	huart->Instance->BRR = (uint32_t)(__DIV_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1773	break;
mbed_official	376:cb4d9db17537	1774	case UART_CLOCKSOURCE_PCLK2:
mbed_official	376:cb4d9db17537	1775	huart->Instance->BRR = (uint32_t)(__DIV_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1776	break;
mbed_official	376:cb4d9db17537	1777	case UART_CLOCKSOURCE_HSI:
mbed_official	376:cb4d9db17537	1778	huart->Instance->BRR = (uint32_t)(__DIV_SAMPLING16(HSI_VALUE, huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1779	break;
mbed_official	376:cb4d9db17537	1780	case UART_CLOCKSOURCE_SYSCLK:
mbed_official	376:cb4d9db17537	1781	huart->Instance->BRR = (uint32_t)(__DIV_SAMPLING16(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1782	break;
mbed_official	376:cb4d9db17537	1783	case UART_CLOCKSOURCE_LSE:
mbed_official	376:cb4d9db17537	1784	huart->Instance->BRR = (uint32_t)(__DIV_SAMPLING16(LSE_VALUE, huart->Init.BaudRate));
mbed_official	376:cb4d9db17537	1785	break;
mbed_official	376:cb4d9db17537	1786	default:
mbed_official	376:cb4d9db17537	1787	break;
mbed_official	376:cb4d9db17537	1788	}
mbed_official	376:cb4d9db17537	1789	}
mbed_official	376:cb4d9db17537	1790	}
mbed_official	376:cb4d9db17537	1791
mbed_official	376:cb4d9db17537	1792	/**
mbed_official	376:cb4d9db17537	1793	* @brief Check the UART Idle State
mbed_official	376:cb4d9db17537	1794	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1795	* @retval HAL status
mbed_official	376:cb4d9db17537	1796	*/
mbed_official	376:cb4d9db17537	1797	HAL_StatusTypeDef UART_CheckIdleState(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1798	{
mbed_official	376:cb4d9db17537	1799	/* Check if the Transmitter is enabled */
mbed_official	376:cb4d9db17537	1800	if((huart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
mbed_official	376:cb4d9db17537	1801	{
mbed_official	376:cb4d9db17537	1802	/* Wait until TEACK flag is set */
mbed_official	376:cb4d9db17537	1803	if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_TEACK, RESET, UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official	376:cb4d9db17537	1804	{
mbed_official	376:cb4d9db17537	1805	return HAL_TIMEOUT;
mbed_official	376:cb4d9db17537	1806	}
mbed_official	376:cb4d9db17537	1807	}
mbed_official	376:cb4d9db17537	1808	/* Check if the Receiver is enabled */
mbed_official	376:cb4d9db17537	1809	if((huart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
mbed_official	376:cb4d9db17537	1810	{
mbed_official	376:cb4d9db17537	1811	/* Wait until REACK flag is set */
mbed_official	376:cb4d9db17537	1812	if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official	376:cb4d9db17537	1813	{
mbed_official	376:cb4d9db17537	1814	return HAL_TIMEOUT;
mbed_official	376:cb4d9db17537	1815	}
mbed_official	376:cb4d9db17537	1816	}
mbed_official	376:cb4d9db17537	1817
mbed_official	376:cb4d9db17537	1818	/* Process Unlocked */
mbed_official	376:cb4d9db17537	1819	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	1820
mbed_official	376:cb4d9db17537	1821	/* Initialize the UART state*/
mbed_official	376:cb4d9db17537	1822	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	376:cb4d9db17537	1823	huart->State= HAL_UART_STATE_READY;
mbed_official	376:cb4d9db17537	1824
mbed_official	376:cb4d9db17537	1825	return HAL_OK;
mbed_official	376:cb4d9db17537	1826	}
mbed_official	376:cb4d9db17537	1827
mbed_official	376:cb4d9db17537	1828	/**
mbed_official	376:cb4d9db17537	1829	* @brief Configure the UART peripheral advanced feautures
mbed_official	376:cb4d9db17537	1830	* @param huart: uart handle
mbed_official	376:cb4d9db17537	1831	* @retval None
mbed_official	376:cb4d9db17537	1832	*/
mbed_official	376:cb4d9db17537	1833	void UART_AdvFeatureConfig(UART_HandleTypeDef *huart)
mbed_official	376:cb4d9db17537	1834	{
mbed_official	376:cb4d9db17537	1835	/* Check whether the set of advanced features to configure is properly set */
mbed_official	376:cb4d9db17537	1836	assert_param(IS_UART_ADVFEATURE_INIT(huart->AdvancedInit.AdvFeatureInit));
mbed_official	376:cb4d9db17537	1837
mbed_official	376:cb4d9db17537	1838	/* if required, configure TX pin active level inversion */
mbed_official	376:cb4d9db17537	1839	if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_TXINVERT_INIT))
mbed_official	376:cb4d9db17537	1840	{
mbed_official	376:cb4d9db17537	1841	assert_param(IS_UART_ADVFEATURE_TXINV(huart->AdvancedInit.TxPinLevelInvert));
mbed_official	376:cb4d9db17537	1842	MODIFY_REG(huart->Instance->CR2, USART_CR2_TXINV, huart->AdvancedInit.TxPinLevelInvert);
mbed_official	376:cb4d9db17537	1843	}
mbed_official	376:cb4d9db17537	1844
mbed_official	376:cb4d9db17537	1845	/* if required, configure RX pin active level inversion */
mbed_official	376:cb4d9db17537	1846	if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXINVERT_INIT))
mbed_official	376:cb4d9db17537	1847	{
mbed_official	376:cb4d9db17537	1848	assert_param(IS_UART_ADVFEATURE_RXINV(huart->AdvancedInit.RxPinLevelInvert));
mbed_official	376:cb4d9db17537	1849	MODIFY_REG(huart->Instance->CR2, USART_CR2_RXINV, huart->AdvancedInit.RxPinLevelInvert);
mbed_official	376:cb4d9db17537	1850	}
mbed_official	376:cb4d9db17537	1851
mbed_official	376:cb4d9db17537	1852	/* if required, configure data inversion */
mbed_official	376:cb4d9db17537	1853	if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DATAINVERT_INIT))
mbed_official	376:cb4d9db17537	1854	{
mbed_official	376:cb4d9db17537	1855	assert_param(IS_UART_ADVFEATURE_DATAINV(huart->AdvancedInit.DataInvert));
mbed_official	376:cb4d9db17537	1856	MODIFY_REG(huart->Instance->CR2, USART_CR2_DATAINV, huart->AdvancedInit.DataInvert);
mbed_official	376:cb4d9db17537	1857	}
mbed_official	376:cb4d9db17537	1858
mbed_official	376:cb4d9db17537	1859	/* if required, configure RX/TX pins swap */
mbed_official	376:cb4d9db17537	1860	if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_SWAP_INIT))
mbed_official	376:cb4d9db17537	1861	{
mbed_official	376:cb4d9db17537	1862	assert_param(IS_UART_ADVFEATURE_SWAP(huart->AdvancedInit.Swap));
mbed_official	376:cb4d9db17537	1863	MODIFY_REG(huart->Instance->CR2, USART_CR2_SWAP, huart->AdvancedInit.Swap);
mbed_official	376:cb4d9db17537	1864	}
mbed_official	376:cb4d9db17537	1865
mbed_official	376:cb4d9db17537	1866	/* if required, configure RX overrun detection disabling */
mbed_official	376:cb4d9db17537	1867	if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXOVERRUNDISABLE_INIT))
mbed_official	376:cb4d9db17537	1868	{
mbed_official	376:cb4d9db17537	1869	assert_param(IS_UART_OVERRUN(huart->AdvancedInit.OverrunDisable));
mbed_official	376:cb4d9db17537	1870	MODIFY_REG(huart->Instance->CR3, USART_CR3_OVRDIS, huart->AdvancedInit.OverrunDisable);
mbed_official	376:cb4d9db17537	1871	}
mbed_official	376:cb4d9db17537	1872
mbed_official	376:cb4d9db17537	1873	/* if required, configure DMA disabling on reception error */
mbed_official	376:cb4d9db17537	1874	if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DMADISABLEONERROR_INIT))
mbed_official	376:cb4d9db17537	1875	{
mbed_official	376:cb4d9db17537	1876	assert_param(IS_UART_ADVFEATURE_DMAONRXERROR(huart->AdvancedInit.DMADisableonRxError));
mbed_official	376:cb4d9db17537	1877	MODIFY_REG(huart->Instance->CR3, USART_CR3_DDRE, huart->AdvancedInit.DMADisableonRxError);
mbed_official	376:cb4d9db17537	1878	}
mbed_official	376:cb4d9db17537	1879
mbed_official	376:cb4d9db17537	1880	/* if required, configure auto Baud rate detection scheme */
mbed_official	376:cb4d9db17537	1881	if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_AUTOBAUDRATE_INIT))
mbed_official	376:cb4d9db17537	1882	{
mbed_official	376:cb4d9db17537	1883	assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATE(huart->AdvancedInit.AutoBaudRateEnable));
mbed_official	376:cb4d9db17537	1884	MODIFY_REG(huart->Instance->CR2, USART_CR2_ABREN, huart->AdvancedInit.AutoBaudRateEnable);
mbed_official	376:cb4d9db17537	1885	/* set auto Baudrate detection parameters if detection is enabled */
mbed_official	376:cb4d9db17537	1886	if(huart->AdvancedInit.AutoBaudRateEnable == UART_ADVFEATURE_AUTOBAUDRATE_ENABLE)
mbed_official	376:cb4d9db17537	1887	{
mbed_official	376:cb4d9db17537	1888	assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATEMODE(huart->AdvancedInit.AutoBaudRateMode));
mbed_official	376:cb4d9db17537	1889	MODIFY_REG(huart->Instance->CR2, USART_CR2_ABRMODE, huart->AdvancedInit.AutoBaudRateMode);
mbed_official	376:cb4d9db17537	1890	}
mbed_official	376:cb4d9db17537	1891	}
mbed_official	376:cb4d9db17537	1892
mbed_official	376:cb4d9db17537	1893	/* if required, configure MSB first on communication line */
mbed_official	376:cb4d9db17537	1894	if(HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_MSBFIRST_INIT))
mbed_official	376:cb4d9db17537	1895	{
mbed_official	376:cb4d9db17537	1896	assert_param(IS_UART_ADVFEATURE_MSBFIRST(huart->AdvancedInit.MSBFirst));
mbed_official	376:cb4d9db17537	1897	MODIFY_REG(huart->Instance->CR2, USART_CR2_MSBFIRST, huart->AdvancedInit.MSBFirst);
mbed_official	376:cb4d9db17537	1898	}
mbed_official	376:cb4d9db17537	1899	}
mbed_official	376:cb4d9db17537	1900
mbed_official	376:cb4d9db17537	1901	/**
mbed_official	376:cb4d9db17537	1902	* @brief This function handles UART Communication Timeout.
mbed_official	376:cb4d9db17537	1903	* @param huart: UART handle
mbed_official	376:cb4d9db17537	1904	* @param Flag: specifies the UART flag to check.
mbed_official	376:cb4d9db17537	1905	* @param Status: The new Flag status (SET or RESET).
mbed_official	376:cb4d9db17537	1906	* @param Timeout: Timeout duration
mbed_official	376:cb4d9db17537	1907	* @retval HAL status
mbed_official	376:cb4d9db17537	1908	*/
mbed_official	376:cb4d9db17537	1909	HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
mbed_official	376:cb4d9db17537	1910	{
mbed_official	376:cb4d9db17537	1911	uint32_t tickstart = 0x00;
mbed_official	376:cb4d9db17537	1912	tickstart = HAL_GetTick();
mbed_official	376:cb4d9db17537	1913
mbed_official	376:cb4d9db17537	1914	/* Wait until flag is set */
mbed_official	376:cb4d9db17537	1915	if(Status == RESET)
mbed_official	376:cb4d9db17537	1916	{
mbed_official	376:cb4d9db17537	1917	while(__HAL_UART_GET_FLAG(huart, Flag) == RESET)
mbed_official	376:cb4d9db17537	1918	{
mbed_official	376:cb4d9db17537	1919	/* Check for the Timeout */
mbed_official	376:cb4d9db17537	1920	if(Timeout != HAL_MAX_DELAY)
mbed_official	376:cb4d9db17537	1921	{
mbed_official	376:cb4d9db17537	1922	if((Timeout == 0)\|\|((HAL_GetTick() - tickstart ) > Timeout))
mbed_official	376:cb4d9db17537	1923	{
mbed_official	376:cb4d9db17537	1924	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official	376:cb4d9db17537	1925	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official	376:cb4d9db17537	1926	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official	376:cb4d9db17537	1927	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	376:cb4d9db17537	1928	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	376:cb4d9db17537	1929
mbed_official	376:cb4d9db17537	1930	huart->State= HAL_UART_STATE_TIMEOUT;
mbed_official	376:cb4d9db17537	1931
mbed_official	376:cb4d9db17537	1932	/* Process Unlocked */
mbed_official	376:cb4d9db17537	1933	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	1934
mbed_official	376:cb4d9db17537	1935	return HAL_TIMEOUT;
mbed_official	376:cb4d9db17537	1936	}
mbed_official	376:cb4d9db17537	1937	}
mbed_official	376:cb4d9db17537	1938	}
mbed_official	376:cb4d9db17537	1939	}
mbed_official	376:cb4d9db17537	1940	else
mbed_official	376:cb4d9db17537	1941	{
mbed_official	376:cb4d9db17537	1942	while(__HAL_UART_GET_FLAG(huart, Flag) != RESET)
mbed_official	376:cb4d9db17537	1943	{
mbed_official	376:cb4d9db17537	1944	/* Check for the Timeout */
mbed_official	376:cb4d9db17537	1945	if(Timeout != HAL_MAX_DELAY)
mbed_official	376:cb4d9db17537	1946	{
mbed_official	376:cb4d9db17537	1947	if((Timeout == 0)\|\|((HAL_GetTick() - tickstart ) > Timeout))
mbed_official	376:cb4d9db17537	1948	{
mbed_official	376:cb4d9db17537	1949	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official	376:cb4d9db17537	1950	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official	376:cb4d9db17537	1951	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official	376:cb4d9db17537	1952	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	376:cb4d9db17537	1953	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	376:cb4d9db17537	1954
mbed_official	376:cb4d9db17537	1955	huart->State= HAL_UART_STATE_TIMEOUT;
mbed_official	376:cb4d9db17537	1956
mbed_official	376:cb4d9db17537	1957	/* Process Unlocked */
mbed_official	376:cb4d9db17537	1958	__HAL_UNLOCK(huart);
mbed_official	376:cb4d9db17537	1959
mbed_official	376:cb4d9db17537	1960	return HAL_TIMEOUT;
mbed_official	376:cb4d9db17537	1961	}
mbed_official	376:cb4d9db17537	1962	}
mbed_official	376:cb4d9db17537	1963	}
mbed_official	376:cb4d9db17537	1964	}
mbed_official	376:cb4d9db17537	1965	return HAL_OK;
mbed_official	376:cb4d9db17537	1966	}
mbed_official	376:cb4d9db17537	1967
mbed_official	376:cb4d9db17537	1968	/**
mbed_official	376:cb4d9db17537	1969	* @}
mbed_official	376:cb4d9db17537	1970	*/
mbed_official	376:cb4d9db17537	1971
mbed_official	376:cb4d9db17537	1972	#endif /* HAL_UART_MODULE_ENABLED */
mbed_official	376:cb4d9db17537	1973	/**
mbed_official	376:cb4d9db17537	1974	* @}
mbed_official	376:cb4d9db17537	1975	*/
mbed_official	376:cb4d9db17537	1976
mbed_official	376:cb4d9db17537	1977	/**
mbed_official	376:cb4d9db17537	1978	* @}
mbed_official	376:cb4d9db17537	1979	*/
mbed_official	376:cb4d9db17537	1980
mbed_official	376:cb4d9db17537	1981	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Library
Created:	08 Sep 2016
Imports:	2
Forks:	1
Commits:	639
Dependents:	0
Dependencies:	0
Followers:	1

targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_uart.c@387:643a59b3dbac, 2014-11-05 (annotated)

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