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targets/cmsis/TARGET_STM/TARGET_NUCLEO_F072RB/stm32f0xx_hal_uart.c@205:c41fc65bcfb4, 2014-05-22 (annotated)

Committer:: mbed_official
Date:: Thu May 22 20:00:09 2014 +0100
Revision:: 205:c41fc65bcfb4
Child:: 218:44081b78fdc2

Synchronized with git revision ea4b6f76efab17a3f7d7777b0cc1ef05fec6d1cb



Full URL: https://github.com/mbedmicro/mbed/commit/ea4b6f76efab17a3f7d7777b0cc1ef05fec6d1cb/



[NUCLEO_F072RB] cmsis files

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed_official	205:c41fc65bcfb4	1	/**
mbed_official	205:c41fc65bcfb4	2	******************************************************************************
mbed_official	205:c41fc65bcfb4	3	* @file stm32f0xx_hal_uart.c
mbed_official	205:c41fc65bcfb4	4	* @author MCD Application Team
mbed_official	205:c41fc65bcfb4	5	* @version V1.0.0
mbed_official	205:c41fc65bcfb4	6	* @date 20-May-2014
mbed_official	205:c41fc65bcfb4	7	* @brief UART HAL module driver.
mbed_official	205:c41fc65bcfb4	8	*
mbed_official	205:c41fc65bcfb4	9	* This file provides firmware functions to manage the following
mbed_official	205:c41fc65bcfb4	10	* functionalities of the UART peripheral:
mbed_official	205:c41fc65bcfb4	11	* + Initialization/de-initialization function
mbed_official	205:c41fc65bcfb4	12	* + I/O operation function
mbed_official	205:c41fc65bcfb4	13	* + Peripheral Control function
mbed_official	205:c41fc65bcfb4	14	* + Peripheral State function
mbed_official	205:c41fc65bcfb4	15	*
mbed_official	205:c41fc65bcfb4	16	@verbatim
mbed_official	205:c41fc65bcfb4	17	===============================================================================
mbed_official	205:c41fc65bcfb4	18	##### How to use this driver #####
mbed_official	205:c41fc65bcfb4	19	================================================================================
mbed_official	205:c41fc65bcfb4	20	[..]
mbed_official	205:c41fc65bcfb4	21	The UART HAL driver can be used as follows:
mbed_official	205:c41fc65bcfb4	22
mbed_official	205:c41fc65bcfb4	23	(#) Declare a UART_HandleTypeDef handle structure.
mbed_official	205:c41fc65bcfb4	24	(#) Initialize the UART low level resources by implementing the HAL_UART_MspInit ()API:
mbed_official	205:c41fc65bcfb4	25	(##) Enable the USARTx interface clock.
mbed_official	205:c41fc65bcfb4	26	(##) UART pins configuration:
mbed_official	205:c41fc65bcfb4	27	(+) Enable the clock for the UART GPIOs.
mbed_official	205:c41fc65bcfb4	28	(+) Configure these UART pins as alternate function pull-up.
mbed_official	205:c41fc65bcfb4	29	(##) NVIC configuration if you need to use interrupt process (HAL_UART_Transmit_IT()
mbed_official	205:c41fc65bcfb4	30	and HAL_UART_Receive_IT() APIs):
mbed_official	205:c41fc65bcfb4	31	(+) Configure the USARTx interrupt priority.
mbed_official	205:c41fc65bcfb4	32	(+) Enable the NVIC USART IRQ handle.
mbed_official	205:c41fc65bcfb4	33	(@) The specific UART interrupts (Transmission complete interrupt,
mbed_official	205:c41fc65bcfb4	34	RXNE interrupt and Error Interrupts) will be managed using the macros
mbed_official	205:c41fc65bcfb4	35	__HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the transmit and receive process.
mbed_official	205:c41fc65bcfb4	36	(##) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA()
mbed_official	205:c41fc65bcfb4	37	and HAL_UART_Receive_DMA() APIs):
mbed_official	205:c41fc65bcfb4	38	(+) Declare a DMA handle structure for the Tx/Rx stream.
mbed_official	205:c41fc65bcfb4	39	(+) Enable the DMAx interface clock.
mbed_official	205:c41fc65bcfb4	40	(+) Configure the declared DMA handle structure with the required Tx/Rx parameters.
mbed_official	205:c41fc65bcfb4	41	(+) Configure the DMA Tx/Rx Stream.
mbed_official	205:c41fc65bcfb4	42	(+) Associate the initilalized DMA handle to the UART DMA Tx/Rx handle.
mbed_official	205:c41fc65bcfb4	43	(+) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx Stream.
mbed_official	205:c41fc65bcfb4	44
mbed_official	205:c41fc65bcfb4	45	(#) Program the Baud Rate, Word Length , Stop Bit, Parity, Hardware
mbed_official	205:c41fc65bcfb4	46	flow control and Mode(Receiver/Transmitter) in the huart Init structure.
mbed_official	205:c41fc65bcfb4	47
mbed_official	205:c41fc65bcfb4	48	(#) If required, program UART advanced features (TX/RX pins swap, auto Baud rate detection,...)
mbed_official	205:c41fc65bcfb4	49	in the huart AdvancedInit structure.
mbed_official	205:c41fc65bcfb4	50
mbed_official	205:c41fc65bcfb4	51	(#) For the UART asynchronous mode, initialize the UART registers by calling
mbed_official	205:c41fc65bcfb4	52	the HAL_UART_Init() API.
mbed_official	205:c41fc65bcfb4	53
mbed_official	205:c41fc65bcfb4	54	(#) For the UART Half duplex mode, initialize the UART registers by calling
mbed_official	205:c41fc65bcfb4	55	the HAL_HalfDuplex_Init() API.
mbed_official	205:c41fc65bcfb4	56
mbed_official	205:c41fc65bcfb4	57	(#) For the UART Multiprocessor mode, initialize the UART registers
mbed_official	205:c41fc65bcfb4	58	by calling the HAL_MultiProcessor_Init() API.
mbed_official	205:c41fc65bcfb4	59
mbed_official	205:c41fc65bcfb4	60	(#) For the UART RS485 Driver Enabled mode, initialize the UART registers
mbed_official	205:c41fc65bcfb4	61	by calling the HAL_RS485Ex_Init() API.
mbed_official	205:c41fc65bcfb4	62
mbed_official	205:c41fc65bcfb4	63	(@) These API's(HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_MultiProcessor_Init(),
mbed_official	205:c41fc65bcfb4	64	also configure also the low level Hardware GPIO, CLOCK, CORTEX...etc) by
mbed_official	205:c41fc65bcfb4	65	calling the customized HAL_UART_MspInit() API.
mbed_official	205:c41fc65bcfb4	66
mbed_official	205:c41fc65bcfb4	67	@endverbatim
mbed_official	205:c41fc65bcfb4	68	******************************************************************************
mbed_official	205:c41fc65bcfb4	69	* @attention
mbed_official	205:c41fc65bcfb4	70	*
mbed_official	205:c41fc65bcfb4	71	* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official	205:c41fc65bcfb4	72	*
mbed_official	205:c41fc65bcfb4	73	* Redistribution and use in source and binary forms, with or without modification,
mbed_official	205:c41fc65bcfb4	74	* are permitted provided that the following conditions are met:
mbed_official	205:c41fc65bcfb4	75	* 1. Redistributions of source code must retain the above copyright notice,
mbed_official	205:c41fc65bcfb4	76	* this list of conditions and the following disclaimer.
mbed_official	205:c41fc65bcfb4	77	* 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official	205:c41fc65bcfb4	78	* this list of conditions and the following disclaimer in the documentation
mbed_official	205:c41fc65bcfb4	79	* and/or other materials provided with the distribution.
mbed_official	205:c41fc65bcfb4	80	* 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official	205:c41fc65bcfb4	81	* may be used to endorse or promote products derived from this software
mbed_official	205:c41fc65bcfb4	82	* without specific prior written permission.
mbed_official	205:c41fc65bcfb4	83	*
mbed_official	205:c41fc65bcfb4	84	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official	205:c41fc65bcfb4	85	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official	205:c41fc65bcfb4	86	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official	205:c41fc65bcfb4	87	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official	205:c41fc65bcfb4	88	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official	205:c41fc65bcfb4	89	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official	205:c41fc65bcfb4	90	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official	205:c41fc65bcfb4	91	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official	205:c41fc65bcfb4	92	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official	205:c41fc65bcfb4	93	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official	205:c41fc65bcfb4	94	*
mbed_official	205:c41fc65bcfb4	95	******************************************************************************
mbed_official	205:c41fc65bcfb4	96	*/
mbed_official	205:c41fc65bcfb4	97
mbed_official	205:c41fc65bcfb4	98	/* Includes ------------------------------------------------------------------*/
mbed_official	205:c41fc65bcfb4	99	#include "stm32f0xx_hal.h"
mbed_official	205:c41fc65bcfb4	100
mbed_official	205:c41fc65bcfb4	101	/** @addtogroup STM32F0xx_HAL_Driver
mbed_official	205:c41fc65bcfb4	102	* @{
mbed_official	205:c41fc65bcfb4	103	*/
mbed_official	205:c41fc65bcfb4	104
mbed_official	205:c41fc65bcfb4	105	/** @defgroup UART
mbed_official	205:c41fc65bcfb4	106	* @brief HAL UART module driver
mbed_official	205:c41fc65bcfb4	107	* @{
mbed_official	205:c41fc65bcfb4	108	*/
mbed_official	205:c41fc65bcfb4	109	#ifdef HAL_UART_MODULE_ENABLED
mbed_official	205:c41fc65bcfb4	110
mbed_official	205:c41fc65bcfb4	111	/* Private typedef -----------------------------------------------------------*/
mbed_official	205:c41fc65bcfb4	112	/* Private define ------------------------------------------------------------*/
mbed_official	205:c41fc65bcfb4	113	#define HAL_UART_TXDMA_TIMEOUTVALUE 22000
mbed_official	205:c41fc65bcfb4	114	#define UART_CR1_FIELDS ((uint32_t)(USART_CR1_M \| USART_CR1_PCE \| USART_CR1_PS \| \
mbed_official	205:c41fc65bcfb4	115	USART_CR1_TE \| USART_CR1_RE \| USART_CR1_OVER8))
mbed_official	205:c41fc65bcfb4	116	/* Private macro -------------------------------------------------------------*/
mbed_official	205:c41fc65bcfb4	117	/* Private variables ---------------------------------------------------------*/
mbed_official	205:c41fc65bcfb4	118	/* Private function prototypes -----------------------------------------------*/
mbed_official	205:c41fc65bcfb4	119	static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
mbed_official	205:c41fc65bcfb4	120	static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
mbed_official	205:c41fc65bcfb4	121	static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official	205:c41fc65bcfb4	122	static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official	205:c41fc65bcfb4	123	static void UART_DMAError(DMA_HandleTypeDef *hdma);
mbed_official	205:c41fc65bcfb4	124	/* Private functions ---------------------------------------------------------*/
mbed_official	205:c41fc65bcfb4	125
mbed_official	205:c41fc65bcfb4	126	/** @defgroup UART_Private_Functions
mbed_official	205:c41fc65bcfb4	127	* @{
mbed_official	205:c41fc65bcfb4	128	*/
mbed_official	205:c41fc65bcfb4	129
mbed_official	205:c41fc65bcfb4	130	/** @defgroup HAL_UART_Group1 Initialization/de-initialization functions
mbed_official	205:c41fc65bcfb4	131	* @brief Initialization and Configuration functions
mbed_official	205:c41fc65bcfb4	132	*
mbed_official	205:c41fc65bcfb4	133	@verbatim
mbed_official	205:c41fc65bcfb4	134	===============================================================================
mbed_official	205:c41fc65bcfb4	135	##### Initialization and Configuration functions #####
mbed_official	205:c41fc65bcfb4	136	===============================================================================
mbed_official	205:c41fc65bcfb4	137	[..]
mbed_official	205:c41fc65bcfb4	138	This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
mbed_official	205:c41fc65bcfb4	139	in asynchronous mode.
mbed_official	205:c41fc65bcfb4	140	(+) For the asynchronous mode only these parameters can be configured:
mbed_official	205:c41fc65bcfb4	141	(++) Baud Rate
mbed_official	205:c41fc65bcfb4	142	(++) Word Length
mbed_official	205:c41fc65bcfb4	143	(++) Stop Bit
mbed_official	205:c41fc65bcfb4	144	(++) Parity: If the parity is enabled, then the MSB bit of the data written
mbed_official	205:c41fc65bcfb4	145	in the data register is transmitted but is changed by the parity bit.
mbed_official	205:c41fc65bcfb4	146	Depending on the frame length defined by the M bit (8-bits or 9-bits),
mbed_official	205:c41fc65bcfb4	147	the possible UART frame formats are as listed in the following table:
mbed_official	205:c41fc65bcfb4	148	\|-----------\|-----------\|---------------------------------------\|
mbed_official	205:c41fc65bcfb4	149	\| M1M0 bits \| PCE bit \| UART frame \|
mbed_official	205:c41fc65bcfb4	150	\|-----------------------\|---------------------------------------\|
mbed_official	205:c41fc65bcfb4	151	\| 00 \| 0 \| \| SB \| 8-bit data \| STB \| \|
mbed_official	205:c41fc65bcfb4	152	\|-----------\|-----------\|---------------------------------------\|
mbed_official	205:c41fc65bcfb4	153	\| 00 \| 1 \| \| SB \| 7-bit data \| PB \| STB \| \|
mbed_official	205:c41fc65bcfb4	154	\|-----------\|-----------\|---------------------------------------\|
mbed_official	205:c41fc65bcfb4	155	\| 01 \| 0 \| \| SB \| 9-bit data \| STB \| \|
mbed_official	205:c41fc65bcfb4	156	\|-----------\|-----------\|---------------------------------------\|
mbed_official	205:c41fc65bcfb4	157	\| 01 \| 1 \| \| SB \| 8-bit data \| PB \| STB \| \|
mbed_official	205:c41fc65bcfb4	158	+---------------------------------------------------------------+
mbed_official	205:c41fc65bcfb4	159	\| 10 \| 0 \| \| SB \| 7-bit data \| STB \| \|
mbed_official	205:c41fc65bcfb4	160	\|-----------\|-----------\|---------------------------------------\|
mbed_official	205:c41fc65bcfb4	161	\| 10 \| 1 \| \| SB \| 6-bit data \| PB \| STB \| \|
mbed_official	205:c41fc65bcfb4	162	+---------------------------------------------------------------+
mbed_official	205:c41fc65bcfb4	163	(++) Hardware flow control
mbed_official	205:c41fc65bcfb4	164	(++) Receiver/transmitter modes
mbed_official	205:c41fc65bcfb4	165	(++) Over Sampling Method
mbed_official	205:c41fc65bcfb4	166	(++) One-Bit Sampling Method
mbed_official	205:c41fc65bcfb4	167	(+) For the asynchronous mode, the following advanced features can be configured as well:
mbed_official	205:c41fc65bcfb4	168	(++) TX and/or RX pin level inversion
mbed_official	205:c41fc65bcfb4	169	(++) data logical level inversion
mbed_official	205:c41fc65bcfb4	170	(++) RX and TX pins swap
mbed_official	205:c41fc65bcfb4	171	(++) RX overrun detection disabling
mbed_official	205:c41fc65bcfb4	172	(++) DMA disabling on RX error
mbed_official	205:c41fc65bcfb4	173	(++) MSB first on communication line
mbed_official	205:c41fc65bcfb4	174	(++) auto Baud rate detection
mbed_official	205:c41fc65bcfb4	175	[..]
mbed_official	205:c41fc65bcfb4	176	The HAL_UART_Init(), HAL_HalfDuplex_Init() and HAL_MultiProcessor_Init()
mbed_official	205:c41fc65bcfb4	177	API follow respectively the UART asynchronous, UART Half duplex and multiprocessor
mbed_official	205:c41fc65bcfb4	178	configuration procedures (details for the procedures are available in reference manual).
mbed_official	205:c41fc65bcfb4	179
mbed_official	205:c41fc65bcfb4	180	@endverbatim
mbed_official	205:c41fc65bcfb4	181	* @{
mbed_official	205:c41fc65bcfb4	182	*/
mbed_official	205:c41fc65bcfb4	183
mbed_official	205:c41fc65bcfb4	184	/**
mbed_official	205:c41fc65bcfb4	185	* @brief Initializes the UART mode according to the specified
mbed_official	205:c41fc65bcfb4	186	* parameters in the UART_InitTypeDef and creates the associated handle .
mbed_official	205:c41fc65bcfb4	187	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	188	* @retval HAL status
mbed_official	205:c41fc65bcfb4	189	*/
mbed_official	205:c41fc65bcfb4	190	HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	191	{
mbed_official	205:c41fc65bcfb4	192	/* Check the UART handle allocation */
mbed_official	205:c41fc65bcfb4	193	if(huart == NULL)
mbed_official	205:c41fc65bcfb4	194	{
mbed_official	205:c41fc65bcfb4	195	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	196	}
mbed_official	205:c41fc65bcfb4	197
mbed_official	205:c41fc65bcfb4	198	if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
mbed_official	205:c41fc65bcfb4	199	{
mbed_official	205:c41fc65bcfb4	200	/* Check the parameters */
mbed_official	205:c41fc65bcfb4	201	assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
mbed_official	205:c41fc65bcfb4	202	}
mbed_official	205:c41fc65bcfb4	203	else
mbed_official	205:c41fc65bcfb4	204	{
mbed_official	205:c41fc65bcfb4	205	/* Check the parameters */
mbed_official	205:c41fc65bcfb4	206	assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official	205:c41fc65bcfb4	207	}
mbed_official	205:c41fc65bcfb4	208
mbed_official	205:c41fc65bcfb4	209	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	205:c41fc65bcfb4	210	{
mbed_official	205:c41fc65bcfb4	211	/* Init the low level hardware : GPIO, CLOCK */
mbed_official	205:c41fc65bcfb4	212	HAL_UART_MspInit(huart);
mbed_official	205:c41fc65bcfb4	213	}
mbed_official	205:c41fc65bcfb4	214
mbed_official	205:c41fc65bcfb4	215	huart->State = HAL_UART_STATE_BUSY;
mbed_official	205:c41fc65bcfb4	216
mbed_official	205:c41fc65bcfb4	217	/* Disable the Peripheral */
mbed_official	205:c41fc65bcfb4	218	__HAL_UART_DISABLE(huart);
mbed_official	205:c41fc65bcfb4	219
mbed_official	205:c41fc65bcfb4	220	/* Set the UART Communication parameters */
mbed_official	205:c41fc65bcfb4	221	if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official	205:c41fc65bcfb4	222	{
mbed_official	205:c41fc65bcfb4	223	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	224	}
mbed_official	205:c41fc65bcfb4	225
mbed_official	205:c41fc65bcfb4	226	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	205:c41fc65bcfb4	227	{
mbed_official	205:c41fc65bcfb4	228	UART_AdvFeatureConfig(huart);
mbed_official	205:c41fc65bcfb4	229	}
mbed_official	205:c41fc65bcfb4	230
mbed_official	205:c41fc65bcfb4	231	/* In asynchronous mode, the following bits must be kept cleared:
mbed_official	205:c41fc65bcfb4	232	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	205:c41fc65bcfb4	233	- SCEN, HDSEL and IREN bits in the USART_CR3 register.*/
mbed_official	205:c41fc65bcfb4	234	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
mbed_official	205:c41fc65bcfb4	235	huart->Instance->CR3 &= ~(USART_CR3_SCEN \| USART_CR3_HDSEL \| USART_CR3_IREN);
mbed_official	205:c41fc65bcfb4	236
mbed_official	205:c41fc65bcfb4	237	/* Enable the Peripheral */
mbed_official	205:c41fc65bcfb4	238	__HAL_UART_ENABLE(huart);
mbed_official	205:c41fc65bcfb4	239
mbed_official	205:c41fc65bcfb4	240	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	205:c41fc65bcfb4	241	return (UART_CheckIdleState(huart));
mbed_official	205:c41fc65bcfb4	242	}
mbed_official	205:c41fc65bcfb4	243
mbed_official	205:c41fc65bcfb4	244	/**
mbed_official	205:c41fc65bcfb4	245	* @brief Initializes the half-duplex mode according to the specified
mbed_official	205:c41fc65bcfb4	246	* parameters in the UART_InitTypeDef and creates the associated handle .
mbed_official	205:c41fc65bcfb4	247	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	248	* @retval HAL status
mbed_official	205:c41fc65bcfb4	249	*/
mbed_official	205:c41fc65bcfb4	250	HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	251	{
mbed_official	205:c41fc65bcfb4	252	/* Check the UART handle allocation */
mbed_official	205:c41fc65bcfb4	253	if(huart == NULL)
mbed_official	205:c41fc65bcfb4	254	{
mbed_official	205:c41fc65bcfb4	255	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	256	}
mbed_official	205:c41fc65bcfb4	257
mbed_official	205:c41fc65bcfb4	258	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	205:c41fc65bcfb4	259	{
mbed_official	205:c41fc65bcfb4	260	/* Init the low level hardware : GPIO, CLOCK */
mbed_official	205:c41fc65bcfb4	261	HAL_UART_MspInit(huart);
mbed_official	205:c41fc65bcfb4	262	}
mbed_official	205:c41fc65bcfb4	263
mbed_official	205:c41fc65bcfb4	264	huart->State = HAL_UART_STATE_BUSY;
mbed_official	205:c41fc65bcfb4	265
mbed_official	205:c41fc65bcfb4	266	/* Disable the Peripheral */
mbed_official	205:c41fc65bcfb4	267	__HAL_UART_DISABLE(huart);
mbed_official	205:c41fc65bcfb4	268
mbed_official	205:c41fc65bcfb4	269	/* Set the UART Communication parameters */
mbed_official	205:c41fc65bcfb4	270	if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official	205:c41fc65bcfb4	271	{
mbed_official	205:c41fc65bcfb4	272	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	273	}
mbed_official	205:c41fc65bcfb4	274
mbed_official	205:c41fc65bcfb4	275	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	205:c41fc65bcfb4	276	{
mbed_official	205:c41fc65bcfb4	277	UART_AdvFeatureConfig(huart);
mbed_official	205:c41fc65bcfb4	278	}
mbed_official	205:c41fc65bcfb4	279
mbed_official	205:c41fc65bcfb4	280	/* In half-duplex mode, the following bits must be kept cleared:
mbed_official	205:c41fc65bcfb4	281	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	205:c41fc65bcfb4	282	- SCEN and IREN bits in the USART_CR3 register.*/
mbed_official	205:c41fc65bcfb4	283	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
mbed_official	205:c41fc65bcfb4	284	huart->Instance->CR3 &= ~(USART_CR3_IREN \| USART_CR3_SCEN);
mbed_official	205:c41fc65bcfb4	285
mbed_official	205:c41fc65bcfb4	286	/* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */
mbed_official	205:c41fc65bcfb4	287	huart->Instance->CR3 \|= USART_CR3_HDSEL;
mbed_official	205:c41fc65bcfb4	288
mbed_official	205:c41fc65bcfb4	289	/* Enable the Peripheral */
mbed_official	205:c41fc65bcfb4	290	__HAL_UART_ENABLE(huart);
mbed_official	205:c41fc65bcfb4	291
mbed_official	205:c41fc65bcfb4	292	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	205:c41fc65bcfb4	293	return (UART_CheckIdleState(huart));
mbed_official	205:c41fc65bcfb4	294	}
mbed_official	205:c41fc65bcfb4	295
mbed_official	205:c41fc65bcfb4	296
mbed_official	205:c41fc65bcfb4	297	/**
mbed_official	205:c41fc65bcfb4	298	* @brief Initializes the multiprocessor mode according to the specified
mbed_official	205:c41fc65bcfb4	299	* parameters in the UART_InitTypeDef and creates the associated handle.
mbed_official	205:c41fc65bcfb4	300	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	301	* @param Address: UART node address (4-, 6-, 7- or 8-bit long)
mbed_official	205:c41fc65bcfb4	302	* @param WakeUpMethod: specifies the UART wakeup method.
mbed_official	205:c41fc65bcfb4	303	* This parameter can be one of the following values:
mbed_official	205:c41fc65bcfb4	304	* @arg UART_WAKEUPMETHOD_IDLELINE: WakeUp by an idle line detection
mbed_official	205:c41fc65bcfb4	305	* @arg UART_WAKEUPMETHOD_ADDRESSMARK: WakeUp by an address mark
mbed_official	205:c41fc65bcfb4	306	* @note If the user resorts to idle line detection wake up, the Address parameter
mbed_official	205:c41fc65bcfb4	307	* is useless and ignored by the initialization function.
mbed_official	205:c41fc65bcfb4	308	* @note If the user resorts to address mark wake up, the address length detection
mbed_official	205:c41fc65bcfb4	309	* is configured by default to 4 bits only. For the UART to be able to
mbed_official	205:c41fc65bcfb4	310	* manage 6-, 7- or 8-bit long addresses detection, the API
mbed_official	205:c41fc65bcfb4	311	* HAL_MultiProcessorEx_AddressLength_Set() must be called after
mbed_official	205:c41fc65bcfb4	312	* HAL_MultiProcessor_Init().
mbed_official	205:c41fc65bcfb4	313	* @retval HAL status
mbed_official	205:c41fc65bcfb4	314	*/
mbed_official	205:c41fc65bcfb4	315	HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod)
mbed_official	205:c41fc65bcfb4	316	{
mbed_official	205:c41fc65bcfb4	317	/* Check the UART handle allocation */
mbed_official	205:c41fc65bcfb4	318	if(huart == NULL)
mbed_official	205:c41fc65bcfb4	319	{
mbed_official	205:c41fc65bcfb4	320	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	321	}
mbed_official	205:c41fc65bcfb4	322
mbed_official	205:c41fc65bcfb4	323	/* Check the wake up method parameter */
mbed_official	205:c41fc65bcfb4	324	assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
mbed_official	205:c41fc65bcfb4	325
mbed_official	205:c41fc65bcfb4	326	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	205:c41fc65bcfb4	327	{
mbed_official	205:c41fc65bcfb4	328	/* Init the low level hardware : GPIO, CLOCK */
mbed_official	205:c41fc65bcfb4	329	HAL_UART_MspInit(huart);
mbed_official	205:c41fc65bcfb4	330	}
mbed_official	205:c41fc65bcfb4	331
mbed_official	205:c41fc65bcfb4	332	huart->State = HAL_UART_STATE_BUSY;
mbed_official	205:c41fc65bcfb4	333
mbed_official	205:c41fc65bcfb4	334	/* Disable the Peripheral */
mbed_official	205:c41fc65bcfb4	335	__HAL_UART_DISABLE(huart);
mbed_official	205:c41fc65bcfb4	336
mbed_official	205:c41fc65bcfb4	337	/* Set the UART Communication parameters */
mbed_official	205:c41fc65bcfb4	338	if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official	205:c41fc65bcfb4	339	{
mbed_official	205:c41fc65bcfb4	340	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	341	}
mbed_official	205:c41fc65bcfb4	342
mbed_official	205:c41fc65bcfb4	343	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	205:c41fc65bcfb4	344	{
mbed_official	205:c41fc65bcfb4	345	UART_AdvFeatureConfig(huart);
mbed_official	205:c41fc65bcfb4	346	}
mbed_official	205:c41fc65bcfb4	347
mbed_official	205:c41fc65bcfb4	348	/* In multiprocessor mode, the following bits must be kept cleared:
mbed_official	205:c41fc65bcfb4	349	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	205:c41fc65bcfb4	350	- SCEN, HDSEL and IREN bits in the USART_CR3 register. */
mbed_official	205:c41fc65bcfb4	351	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
mbed_official	205:c41fc65bcfb4	352	huart->Instance->CR3 &= ~(USART_CR3_SCEN \| USART_CR3_HDSEL \| USART_CR3_IREN);
mbed_official	205:c41fc65bcfb4	353
mbed_official	205:c41fc65bcfb4	354	if (WakeUpMethod == UART_WAKEUPMETHOD_ADDRESSMARK)
mbed_official	205:c41fc65bcfb4	355	{
mbed_official	205:c41fc65bcfb4	356	/* If address mark wake up method is chosen, set the USART address node */
mbed_official	205:c41fc65bcfb4	357	MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)Address << UART_CR2_ADDRESS_LSB_POS));
mbed_official	205:c41fc65bcfb4	358	}
mbed_official	205:c41fc65bcfb4	359
mbed_official	205:c41fc65bcfb4	360	/* Set the wake up method by setting the WAKE bit in the CR1 register */
mbed_official	205:c41fc65bcfb4	361	MODIFY_REG(huart->Instance->CR1, USART_CR1_WAKE, WakeUpMethod);
mbed_official	205:c41fc65bcfb4	362
mbed_official	205:c41fc65bcfb4	363	/* Enable the Peripheral */
mbed_official	205:c41fc65bcfb4	364	__HAL_UART_ENABLE(huart);
mbed_official	205:c41fc65bcfb4	365
mbed_official	205:c41fc65bcfb4	366	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	205:c41fc65bcfb4	367	return (UART_CheckIdleState(huart));
mbed_official	205:c41fc65bcfb4	368	}
mbed_official	205:c41fc65bcfb4	369
mbed_official	205:c41fc65bcfb4	370
mbed_official	205:c41fc65bcfb4	371
mbed_official	205:c41fc65bcfb4	372
mbed_official	205:c41fc65bcfb4	373	/**
mbed_official	205:c41fc65bcfb4	374	* @brief DeInitializes the UART peripheral
mbed_official	205:c41fc65bcfb4	375	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	376	* @retval HAL status
mbed_official	205:c41fc65bcfb4	377	*/
mbed_official	205:c41fc65bcfb4	378	HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	379	{
mbed_official	205:c41fc65bcfb4	380	/* Check the UART handle allocation */
mbed_official	205:c41fc65bcfb4	381	if(huart == NULL)
mbed_official	205:c41fc65bcfb4	382	{
mbed_official	205:c41fc65bcfb4	383	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	384	}
mbed_official	205:c41fc65bcfb4	385
mbed_official	205:c41fc65bcfb4	386	/* Check the parameters */
mbed_official	205:c41fc65bcfb4	387	assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official	205:c41fc65bcfb4	388
mbed_official	205:c41fc65bcfb4	389	huart->State = HAL_UART_STATE_BUSY;
mbed_official	205:c41fc65bcfb4	390
mbed_official	205:c41fc65bcfb4	391	/* Disable the Peripheral */
mbed_official	205:c41fc65bcfb4	392	__HAL_UART_DISABLE(huart);
mbed_official	205:c41fc65bcfb4	393
mbed_official	205:c41fc65bcfb4	394	huart->Instance->CR1 = 0x0;
mbed_official	205:c41fc65bcfb4	395	huart->Instance->CR2 = 0x0;
mbed_official	205:c41fc65bcfb4	396	huart->Instance->CR3 = 0x0;
mbed_official	205:c41fc65bcfb4	397
mbed_official	205:c41fc65bcfb4	398	/* DeInit the low level hardware */
mbed_official	205:c41fc65bcfb4	399	HAL_UART_MspDeInit(huart);
mbed_official	205:c41fc65bcfb4	400
mbed_official	205:c41fc65bcfb4	401	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	205:c41fc65bcfb4	402	huart->State = HAL_UART_STATE_RESET;
mbed_official	205:c41fc65bcfb4	403
mbed_official	205:c41fc65bcfb4	404	/* Process Unlock */
mbed_official	205:c41fc65bcfb4	405	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	406
mbed_official	205:c41fc65bcfb4	407	return HAL_OK;
mbed_official	205:c41fc65bcfb4	408	}
mbed_official	205:c41fc65bcfb4	409
mbed_official	205:c41fc65bcfb4	410	/**
mbed_official	205:c41fc65bcfb4	411	* @brief UART MSP Init
mbed_official	205:c41fc65bcfb4	412	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	413	* @retval None
mbed_official	205:c41fc65bcfb4	414	*/
mbed_official	205:c41fc65bcfb4	415	__weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	416	{
mbed_official	205:c41fc65bcfb4	417	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	205:c41fc65bcfb4	418	the HAL_UART_MspInit can be implemented in the user file
mbed_official	205:c41fc65bcfb4	419	*/
mbed_official	205:c41fc65bcfb4	420	}
mbed_official	205:c41fc65bcfb4	421
mbed_official	205:c41fc65bcfb4	422	/**
mbed_official	205:c41fc65bcfb4	423	* @brief UART MSP DeInit
mbed_official	205:c41fc65bcfb4	424	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	425	* @retval None
mbed_official	205:c41fc65bcfb4	426	*/
mbed_official	205:c41fc65bcfb4	427	__weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	428	{
mbed_official	205:c41fc65bcfb4	429	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	205:c41fc65bcfb4	430	the HAL_UART_MspDeInit can be implemented in the user file
mbed_official	205:c41fc65bcfb4	431	*/
mbed_official	205:c41fc65bcfb4	432	}
mbed_official	205:c41fc65bcfb4	433
mbed_official	205:c41fc65bcfb4	434	/**
mbed_official	205:c41fc65bcfb4	435	* @}
mbed_official	205:c41fc65bcfb4	436	*/
mbed_official	205:c41fc65bcfb4	437
mbed_official	205:c41fc65bcfb4	438	/** @defgroup HAL_UART_Group2 IO operation functions
mbed_official	205:c41fc65bcfb4	439	* @brief UART Transmit/Receive functions
mbed_official	205:c41fc65bcfb4	440	*
mbed_official	205:c41fc65bcfb4	441	@verbatim
mbed_official	205:c41fc65bcfb4	442	===============================================================================
mbed_official	205:c41fc65bcfb4	443	##### I/O operation functions #####
mbed_official	205:c41fc65bcfb4	444	===============================================================================
mbed_official	205:c41fc65bcfb4	445	This subsection provides a set of functions allowing to manage the UART asynchronous
mbed_official	205:c41fc65bcfb4	446	and Half duplex data transfers.
mbed_official	205:c41fc65bcfb4	447
mbed_official	205:c41fc65bcfb4	448	(#) There are two mode of transfer:
mbed_official	205:c41fc65bcfb4	449	(+) Blocking mode: The communication is performed in polling mode.
mbed_official	205:c41fc65bcfb4	450	The HAL status of all data processing is returned by the same function
mbed_official	205:c41fc65bcfb4	451	after finishing transfer.
mbed_official	205:c41fc65bcfb4	452	(+) No-Blocking mode: The communication is performed using Interrupts
mbed_official	205:c41fc65bcfb4	453	or DMA, These API's return the HAL status.
mbed_official	205:c41fc65bcfb4	454	The end of the data processing will be indicated through the
mbed_official	205:c41fc65bcfb4	455	dedicated UART IRQ when using Interrupt mode or the DMA IRQ when
mbed_official	205:c41fc65bcfb4	456	using DMA mode.
mbed_official	205:c41fc65bcfb4	457	The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks
mbed_official	205:c41fc65bcfb4	458	will be executed respectivelly at the end of the transmit or Receive process
mbed_official	205:c41fc65bcfb4	459	The HAL_UART_ErrorCallback()user callback will be executed when a communication error is detected
mbed_official	205:c41fc65bcfb4	460
mbed_official	205:c41fc65bcfb4	461	(#) Blocking mode API's are :
mbed_official	205:c41fc65bcfb4	462	(+) HAL_UART_Transmit()
mbed_official	205:c41fc65bcfb4	463	(+) HAL_UART_Receive()
mbed_official	205:c41fc65bcfb4	464
mbed_official	205:c41fc65bcfb4	465	(#) Non-Blocking mode API's with Interrupt are :
mbed_official	205:c41fc65bcfb4	466	(+) HAL_UART_Transmit_IT()
mbed_official	205:c41fc65bcfb4	467	(+) HAL_UART_Receive_IT()
mbed_official	205:c41fc65bcfb4	468	(+) HAL_UART_IRQHandler()
mbed_official	205:c41fc65bcfb4	469	(+) UART_Transmit_IT()
mbed_official	205:c41fc65bcfb4	470	(+) UART_Receive_IT()
mbed_official	205:c41fc65bcfb4	471
mbed_official	205:c41fc65bcfb4	472	(#) No-Blocking mode API's with DMA are :
mbed_official	205:c41fc65bcfb4	473	(+) HAL_UART_Transmit_DMA()
mbed_official	205:c41fc65bcfb4	474	(+) HAL_UART_Receive_DMA()
mbed_official	205:c41fc65bcfb4	475	(+) HAL_UART_DMAPause()
mbed_official	205:c41fc65bcfb4	476	(+) HAL_UART_DMAResume()
mbed_official	205:c41fc65bcfb4	477	(+) HAL_UART_DMAStop()
mbed_official	205:c41fc65bcfb4	478
mbed_official	205:c41fc65bcfb4	479	(#) A set of Transfer Complete Callbacks are provided in No_Blocking mode:
mbed_official	205:c41fc65bcfb4	480	(+) HAL_UART_TxHalfCpltCallback()
mbed_official	205:c41fc65bcfb4	481	(+) HAL_UART_TxCpltCallback()
mbed_official	205:c41fc65bcfb4	482	(+) HAL_UART_RxHalfCpltCallback()
mbed_official	205:c41fc65bcfb4	483	(+) HAL_UART_RxCpltCallback()
mbed_official	205:c41fc65bcfb4	484	(+) HAL_UART_ErrorCallback()
mbed_official	205:c41fc65bcfb4	485
mbed_official	205:c41fc65bcfb4	486
mbed_official	205:c41fc65bcfb4	487	-@- In the Half duplex communication, it is forbidden to run the transmit
mbed_official	205:c41fc65bcfb4	488	and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX can't be useful.
mbed_official	205:c41fc65bcfb4	489
mbed_official	205:c41fc65bcfb4	490	@endverbatim
mbed_official	205:c41fc65bcfb4	491	* @{
mbed_official	205:c41fc65bcfb4	492	*/
mbed_official	205:c41fc65bcfb4	493
mbed_official	205:c41fc65bcfb4	494	/**
mbed_official	205:c41fc65bcfb4	495	* @brief Send an amount of data in blocking mode
mbed_official	205:c41fc65bcfb4	496	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	497	* @param pData: pointer to data buffer
mbed_official	205:c41fc65bcfb4	498	* @param Size: amount of data to be sent
mbed_official	205:c41fc65bcfb4	499	* @param Timeout : Timeout duration
mbed_official	205:c41fc65bcfb4	500	* @retval HAL status
mbed_official	205:c41fc65bcfb4	501	*/
mbed_official	205:c41fc65bcfb4	502	HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size, uint32_t Timeout)
mbed_official	205:c41fc65bcfb4	503	{
mbed_official	205:c41fc65bcfb4	504	uint16_t* tmp;
mbed_official	205:c41fc65bcfb4	505
mbed_official	205:c41fc65bcfb4	506	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official	205:c41fc65bcfb4	507	{
mbed_official	205:c41fc65bcfb4	508	if((pData == NULL ) \|\| (Size == 0))
mbed_official	205:c41fc65bcfb4	509	{
mbed_official	205:c41fc65bcfb4	510	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	511	}
mbed_official	205:c41fc65bcfb4	512
mbed_official	205:c41fc65bcfb4	513	/* Process Locked */
mbed_official	205:c41fc65bcfb4	514	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	515
mbed_official	205:c41fc65bcfb4	516	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	205:c41fc65bcfb4	517	/* Check if a non-blocking receive process is ongoing or not */
mbed_official	205:c41fc65bcfb4	518	if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	205:c41fc65bcfb4	519	{
mbed_official	205:c41fc65bcfb4	520	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	205:c41fc65bcfb4	521	}
mbed_official	205:c41fc65bcfb4	522	else
mbed_official	205:c41fc65bcfb4	523	{
mbed_official	205:c41fc65bcfb4	524	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	205:c41fc65bcfb4	525	}
mbed_official	205:c41fc65bcfb4	526
mbed_official	205:c41fc65bcfb4	527	huart->TxXferSize = Size;
mbed_official	205:c41fc65bcfb4	528	huart->TxXferCount = Size;
mbed_official	205:c41fc65bcfb4	529	while(huart->TxXferCount > 0)
mbed_official	205:c41fc65bcfb4	530	{
mbed_official	205:c41fc65bcfb4	531	huart->TxXferCount--;
mbed_official	205:c41fc65bcfb4	532	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK)
mbed_official	205:c41fc65bcfb4	533	{
mbed_official	205:c41fc65bcfb4	534	return HAL_TIMEOUT;
mbed_official	205:c41fc65bcfb4	535	}
mbed_official	205:c41fc65bcfb4	536	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	205:c41fc65bcfb4	537	{
mbed_official	205:c41fc65bcfb4	538	tmp = (uint16_t*) pData;
mbed_official	205:c41fc65bcfb4	539	huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
mbed_official	205:c41fc65bcfb4	540	pData += 2;
mbed_official	205:c41fc65bcfb4	541	}
mbed_official	205:c41fc65bcfb4	542	else
mbed_official	205:c41fc65bcfb4	543	{
mbed_official	205:c41fc65bcfb4	544	huart->Instance->TDR = (*pData++ & (uint8_t)0xFF);
mbed_official	205:c41fc65bcfb4	545	}
mbed_official	205:c41fc65bcfb4	546	}
mbed_official	205:c41fc65bcfb4	547	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official	205:c41fc65bcfb4	548	{
mbed_official	205:c41fc65bcfb4	549	return HAL_TIMEOUT;
mbed_official	205:c41fc65bcfb4	550	}
mbed_official	205:c41fc65bcfb4	551	/* Check if a non-blocking receive Process is ongoing or not */
mbed_official	205:c41fc65bcfb4	552	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	205:c41fc65bcfb4	553	{
mbed_official	205:c41fc65bcfb4	554	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	205:c41fc65bcfb4	555	}
mbed_official	205:c41fc65bcfb4	556	else
mbed_official	205:c41fc65bcfb4	557	{
mbed_official	205:c41fc65bcfb4	558	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	559	}
mbed_official	205:c41fc65bcfb4	560
mbed_official	205:c41fc65bcfb4	561	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	562	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	563
mbed_official	205:c41fc65bcfb4	564	return HAL_OK;
mbed_official	205:c41fc65bcfb4	565	}
mbed_official	205:c41fc65bcfb4	566	else
mbed_official	205:c41fc65bcfb4	567	{
mbed_official	205:c41fc65bcfb4	568	return HAL_BUSY;
mbed_official	205:c41fc65bcfb4	569	}
mbed_official	205:c41fc65bcfb4	570	}
mbed_official	205:c41fc65bcfb4	571
mbed_official	205:c41fc65bcfb4	572	/**
mbed_official	205:c41fc65bcfb4	573	* @brief Receive an amount of data in blocking mode
mbed_official	205:c41fc65bcfb4	574	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	575	* @param pData: pointer to data buffer
mbed_official	205:c41fc65bcfb4	576	* @param Size: amount of data to be received
mbed_official	205:c41fc65bcfb4	577	* @param Timeout : Timeout duration
mbed_official	205:c41fc65bcfb4	578	* @retval HAL status
mbed_official	205:c41fc65bcfb4	579	*/
mbed_official	205:c41fc65bcfb4	580	HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size, uint32_t Timeout)
mbed_official	205:c41fc65bcfb4	581	{
mbed_official	205:c41fc65bcfb4	582	uint16_t* tmp;
mbed_official	205:c41fc65bcfb4	583	uint16_t uhMask;
mbed_official	205:c41fc65bcfb4	584
mbed_official	205:c41fc65bcfb4	585	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official	205:c41fc65bcfb4	586	{
mbed_official	205:c41fc65bcfb4	587	if((pData == NULL ) \|\| (Size == 0))
mbed_official	205:c41fc65bcfb4	588	{
mbed_official	205:c41fc65bcfb4	589	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	590	}
mbed_official	205:c41fc65bcfb4	591
mbed_official	205:c41fc65bcfb4	592	/* Process Locked */
mbed_official	205:c41fc65bcfb4	593	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	594
mbed_official	205:c41fc65bcfb4	595	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	205:c41fc65bcfb4	596	/* Check if a non-blocking transmit process is ongoing or not */
mbed_official	205:c41fc65bcfb4	597	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	205:c41fc65bcfb4	598	{
mbed_official	205:c41fc65bcfb4	599	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	205:c41fc65bcfb4	600	}
mbed_official	205:c41fc65bcfb4	601	else
mbed_official	205:c41fc65bcfb4	602	{
mbed_official	205:c41fc65bcfb4	603	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	205:c41fc65bcfb4	604	}
mbed_official	205:c41fc65bcfb4	605
mbed_official	205:c41fc65bcfb4	606	huart->RxXferSize = Size;
mbed_official	205:c41fc65bcfb4	607	huart->RxXferCount = Size;
mbed_official	205:c41fc65bcfb4	608
mbed_official	205:c41fc65bcfb4	609	/* Computation of UART mask to apply to RDR register */
mbed_official	205:c41fc65bcfb4	610	__HAL_UART_MASK_COMPUTATION(huart);
mbed_official	205:c41fc65bcfb4	611	uhMask = huart->Mask;
mbed_official	205:c41fc65bcfb4	612
mbed_official	205:c41fc65bcfb4	613	/* as long as data have to be received */
mbed_official	205:c41fc65bcfb4	614	while(huart->RxXferCount > 0)
mbed_official	205:c41fc65bcfb4	615	{
mbed_official	205:c41fc65bcfb4	616	huart->RxXferCount--;
mbed_official	205:c41fc65bcfb4	617	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
mbed_official	205:c41fc65bcfb4	618	{
mbed_official	205:c41fc65bcfb4	619	return HAL_TIMEOUT;
mbed_official	205:c41fc65bcfb4	620	}
mbed_official	205:c41fc65bcfb4	621	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	205:c41fc65bcfb4	622	{
mbed_official	205:c41fc65bcfb4	623	tmp = (uint16_t*) pData ;
mbed_official	205:c41fc65bcfb4	624	*tmp = (uint16_t)(huart->Instance->RDR & uhMask);
mbed_official	205:c41fc65bcfb4	625	pData +=2;
mbed_official	205:c41fc65bcfb4	626	}
mbed_official	205:c41fc65bcfb4	627	else
mbed_official	205:c41fc65bcfb4	628	{
mbed_official	205:c41fc65bcfb4	629	*pData++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
mbed_official	205:c41fc65bcfb4	630	}
mbed_official	205:c41fc65bcfb4	631	}
mbed_official	205:c41fc65bcfb4	632
mbed_official	205:c41fc65bcfb4	633	/* Check if a non-blocking transmit Process is ongoing or not */
mbed_official	205:c41fc65bcfb4	634	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	205:c41fc65bcfb4	635	{
mbed_official	205:c41fc65bcfb4	636	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	205:c41fc65bcfb4	637	}
mbed_official	205:c41fc65bcfb4	638	else
mbed_official	205:c41fc65bcfb4	639	{
mbed_official	205:c41fc65bcfb4	640	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	641	}
mbed_official	205:c41fc65bcfb4	642	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	643	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	644
mbed_official	205:c41fc65bcfb4	645	return HAL_OK;
mbed_official	205:c41fc65bcfb4	646	}
mbed_official	205:c41fc65bcfb4	647	else
mbed_official	205:c41fc65bcfb4	648	{
mbed_official	205:c41fc65bcfb4	649	return HAL_BUSY;
mbed_official	205:c41fc65bcfb4	650	}
mbed_official	205:c41fc65bcfb4	651	}
mbed_official	205:c41fc65bcfb4	652
mbed_official	205:c41fc65bcfb4	653	/**
mbed_official	205:c41fc65bcfb4	654	* @brief Send an amount of data in interrupt mode
mbed_official	205:c41fc65bcfb4	655	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	656	* @param pData: pointer to data buffer
mbed_official	205:c41fc65bcfb4	657	* @param Size: amount of data to be sent
mbed_official	205:c41fc65bcfb4	658	* @retval HAL status
mbed_official	205:c41fc65bcfb4	659	*/
mbed_official	205:c41fc65bcfb4	660	HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	205:c41fc65bcfb4	661	{
mbed_official	205:c41fc65bcfb4	662	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official	205:c41fc65bcfb4	663	{
mbed_official	205:c41fc65bcfb4	664	if((pData == NULL ) \|\| (Size == 0))
mbed_official	205:c41fc65bcfb4	665	{
mbed_official	205:c41fc65bcfb4	666	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	667	}
mbed_official	205:c41fc65bcfb4	668
mbed_official	205:c41fc65bcfb4	669	/* Process Locked */
mbed_official	205:c41fc65bcfb4	670	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	671
mbed_official	205:c41fc65bcfb4	672	huart->pTxBuffPtr = pData;
mbed_official	205:c41fc65bcfb4	673	huart->TxXferSize = Size;
mbed_official	205:c41fc65bcfb4	674	huart->TxXferCount = Size;
mbed_official	205:c41fc65bcfb4	675
mbed_official	205:c41fc65bcfb4	676	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	205:c41fc65bcfb4	677	/* Check if a receive process is ongoing or not */
mbed_official	205:c41fc65bcfb4	678	if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	205:c41fc65bcfb4	679	{
mbed_official	205:c41fc65bcfb4	680	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	205:c41fc65bcfb4	681	}
mbed_official	205:c41fc65bcfb4	682	else
mbed_official	205:c41fc65bcfb4	683	{
mbed_official	205:c41fc65bcfb4	684	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	205:c41fc65bcfb4	685	}
mbed_official	205:c41fc65bcfb4	686
mbed_official	205:c41fc65bcfb4	687	/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	205:c41fc65bcfb4	688	__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
mbed_official	205:c41fc65bcfb4	689
mbed_official	205:c41fc65bcfb4	690	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	691	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	692
mbed_official	205:c41fc65bcfb4	693	/* Enable the UART Transmit Complete Interrupt */
mbed_official	205:c41fc65bcfb4	694	__HAL_UART_ENABLE_IT(huart, UART_IT_TC);
mbed_official	205:c41fc65bcfb4	695
mbed_official	205:c41fc65bcfb4	696	return HAL_OK;
mbed_official	205:c41fc65bcfb4	697	}
mbed_official	205:c41fc65bcfb4	698	else
mbed_official	205:c41fc65bcfb4	699	{
mbed_official	205:c41fc65bcfb4	700	return HAL_BUSY;
mbed_official	205:c41fc65bcfb4	701	}
mbed_official	205:c41fc65bcfb4	702	}
mbed_official	205:c41fc65bcfb4	703
mbed_official	205:c41fc65bcfb4	704	/**
mbed_official	205:c41fc65bcfb4	705	* @brief Receive an amount of data in interrupt mode
mbed_official	205:c41fc65bcfb4	706	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	707	* @param pData: pointer to data buffer
mbed_official	205:c41fc65bcfb4	708	* @param Size: amount of data to be received
mbed_official	205:c41fc65bcfb4	709	* @retval HAL status
mbed_official	205:c41fc65bcfb4	710	*/
mbed_official	205:c41fc65bcfb4	711	HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	205:c41fc65bcfb4	712	{
mbed_official	205:c41fc65bcfb4	713	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official	205:c41fc65bcfb4	714	{
mbed_official	205:c41fc65bcfb4	715	if((pData == NULL ) \|\| (Size == 0))
mbed_official	205:c41fc65bcfb4	716	{
mbed_official	205:c41fc65bcfb4	717	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	718	}
mbed_official	205:c41fc65bcfb4	719
mbed_official	205:c41fc65bcfb4	720	/* Process Locked */
mbed_official	205:c41fc65bcfb4	721	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	722
mbed_official	205:c41fc65bcfb4	723	huart->pRxBuffPtr = pData;
mbed_official	205:c41fc65bcfb4	724	huart->RxXferSize = Size;
mbed_official	205:c41fc65bcfb4	725	huart->RxXferCount = Size;
mbed_official	205:c41fc65bcfb4	726
mbed_official	205:c41fc65bcfb4	727	/* Computation of UART mask to apply to RDR register */
mbed_official	205:c41fc65bcfb4	728	__HAL_UART_MASK_COMPUTATION(huart);
mbed_official	205:c41fc65bcfb4	729
mbed_official	205:c41fc65bcfb4	730	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	205:c41fc65bcfb4	731	/* Check if a transmit process is ongoing or not */
mbed_official	205:c41fc65bcfb4	732	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	205:c41fc65bcfb4	733	{
mbed_official	205:c41fc65bcfb4	734	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	205:c41fc65bcfb4	735	}
mbed_official	205:c41fc65bcfb4	736	else
mbed_official	205:c41fc65bcfb4	737	{
mbed_official	205:c41fc65bcfb4	738	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	205:c41fc65bcfb4	739	}
mbed_official	205:c41fc65bcfb4	740
mbed_official	205:c41fc65bcfb4	741	/* Enable the UART Parity Error Interrupt */
mbed_official	205:c41fc65bcfb4	742	__HAL_UART_ENABLE_IT(huart, UART_IT_PE);
mbed_official	205:c41fc65bcfb4	743
mbed_official	205:c41fc65bcfb4	744	/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	205:c41fc65bcfb4	745	__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
mbed_official	205:c41fc65bcfb4	746
mbed_official	205:c41fc65bcfb4	747	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	748	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	749
mbed_official	205:c41fc65bcfb4	750	/* Enable the UART Data Register not empty Interrupt */
mbed_official	205:c41fc65bcfb4	751	__HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
mbed_official	205:c41fc65bcfb4	752
mbed_official	205:c41fc65bcfb4	753	return HAL_OK;
mbed_official	205:c41fc65bcfb4	754	}
mbed_official	205:c41fc65bcfb4	755	else
mbed_official	205:c41fc65bcfb4	756	{
mbed_official	205:c41fc65bcfb4	757	return HAL_BUSY;
mbed_official	205:c41fc65bcfb4	758	}
mbed_official	205:c41fc65bcfb4	759	}
mbed_official	205:c41fc65bcfb4	760
mbed_official	205:c41fc65bcfb4	761	/**
mbed_official	205:c41fc65bcfb4	762	* @brief Send an amount of data in DMA mode
mbed_official	205:c41fc65bcfb4	763	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	764	* @param pData: pointer to data buffer
mbed_official	205:c41fc65bcfb4	765	* @param Size: amount of data to be sent
mbed_official	205:c41fc65bcfb4	766	* @retval HAL status
mbed_official	205:c41fc65bcfb4	767	*/
mbed_official	205:c41fc65bcfb4	768	HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	205:c41fc65bcfb4	769	{
mbed_official	205:c41fc65bcfb4	770	uint32_t *tmp;
mbed_official	205:c41fc65bcfb4	771
mbed_official	205:c41fc65bcfb4	772	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official	205:c41fc65bcfb4	773	{
mbed_official	205:c41fc65bcfb4	774	if((pData == NULL ) \|\| (Size == 0))
mbed_official	205:c41fc65bcfb4	775	{
mbed_official	205:c41fc65bcfb4	776	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	777	}
mbed_official	205:c41fc65bcfb4	778
mbed_official	205:c41fc65bcfb4	779	/* Process Locked */
mbed_official	205:c41fc65bcfb4	780	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	781
mbed_official	205:c41fc65bcfb4	782	huart->pTxBuffPtr = pData;
mbed_official	205:c41fc65bcfb4	783	huart->TxXferSize = Size;
mbed_official	205:c41fc65bcfb4	784	huart->TxXferCount = Size;
mbed_official	205:c41fc65bcfb4	785
mbed_official	205:c41fc65bcfb4	786	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	205:c41fc65bcfb4	787	/* Check if a receive process is ongoing or not */
mbed_official	205:c41fc65bcfb4	788	if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	205:c41fc65bcfb4	789	{
mbed_official	205:c41fc65bcfb4	790	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	205:c41fc65bcfb4	791	}
mbed_official	205:c41fc65bcfb4	792	else
mbed_official	205:c41fc65bcfb4	793	{
mbed_official	205:c41fc65bcfb4	794	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	205:c41fc65bcfb4	795	}
mbed_official	205:c41fc65bcfb4	796
mbed_official	205:c41fc65bcfb4	797	/* Set the UART DMA transfer complete callback */
mbed_official	205:c41fc65bcfb4	798	huart->hdmatx->XferCpltCallback = UART_DMATransmitCplt;
mbed_official	205:c41fc65bcfb4	799
mbed_official	205:c41fc65bcfb4	800	/* Set the UART DMA Half transfer complete callback */
mbed_official	205:c41fc65bcfb4	801	huart->hdmatx->XferHalfCpltCallback = UART_DMATxHalfCplt;
mbed_official	205:c41fc65bcfb4	802
mbed_official	205:c41fc65bcfb4	803	/* Set the DMA error callback */
mbed_official	205:c41fc65bcfb4	804	huart->hdmatx->XferErrorCallback = UART_DMAError;
mbed_official	205:c41fc65bcfb4	805
mbed_official	205:c41fc65bcfb4	806	/* Enable the UART transmit DMA channel */
mbed_official	205:c41fc65bcfb4	807	tmp = (uint32_t*)&pData;
mbed_official	205:c41fc65bcfb4	808	HAL_DMA_Start_IT(huart->hdmatx, (uint32_t)tmp, (uint32_t)&huart->Instance->TDR, Size);
mbed_official	205:c41fc65bcfb4	809
mbed_official	205:c41fc65bcfb4	810	/* Enable the DMA transfer for transmit request by setting the DMAT bit
mbed_official	205:c41fc65bcfb4	811	in the UART CR3 register */
mbed_official	205:c41fc65bcfb4	812	huart->Instance->CR3 \|= USART_CR3_DMAT;
mbed_official	205:c41fc65bcfb4	813
mbed_official	205:c41fc65bcfb4	814	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	815	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	816
mbed_official	205:c41fc65bcfb4	817	return HAL_OK;
mbed_official	205:c41fc65bcfb4	818	}
mbed_official	205:c41fc65bcfb4	819	else
mbed_official	205:c41fc65bcfb4	820	{
mbed_official	205:c41fc65bcfb4	821	return HAL_BUSY;
mbed_official	205:c41fc65bcfb4	822	}
mbed_official	205:c41fc65bcfb4	823	}
mbed_official	205:c41fc65bcfb4	824
mbed_official	205:c41fc65bcfb4	825	/**
mbed_official	205:c41fc65bcfb4	826	* @brief Receive an amount of data in DMA mode
mbed_official	205:c41fc65bcfb4	827	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	828	* @param pData: pointer to data buffer
mbed_official	205:c41fc65bcfb4	829	* @param Size: amount of data to be received
mbed_official	205:c41fc65bcfb4	830	* @note When the UART parity is enabled (PCE = 1), the received data contain
mbed_official	205:c41fc65bcfb4	831	* the parity bit (MSB position)
mbed_official	205:c41fc65bcfb4	832	* @retval HAL status
mbed_official	205:c41fc65bcfb4	833	*/
mbed_official	205:c41fc65bcfb4	834	HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	205:c41fc65bcfb4	835	{
mbed_official	205:c41fc65bcfb4	836	uint32_t *tmp;
mbed_official	205:c41fc65bcfb4	837
mbed_official	205:c41fc65bcfb4	838	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official	205:c41fc65bcfb4	839	{
mbed_official	205:c41fc65bcfb4	840	if((pData == NULL ) \|\| (Size == 0))
mbed_official	205:c41fc65bcfb4	841	{
mbed_official	205:c41fc65bcfb4	842	return HAL_ERROR;
mbed_official	205:c41fc65bcfb4	843	}
mbed_official	205:c41fc65bcfb4	844
mbed_official	205:c41fc65bcfb4	845	/* Process Locked */
mbed_official	205:c41fc65bcfb4	846	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	847
mbed_official	205:c41fc65bcfb4	848	huart->pRxBuffPtr = pData;
mbed_official	205:c41fc65bcfb4	849	huart->RxXferSize = Size;
mbed_official	205:c41fc65bcfb4	850
mbed_official	205:c41fc65bcfb4	851	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	205:c41fc65bcfb4	852	/* Check if a transmit rocess is ongoing or not */
mbed_official	205:c41fc65bcfb4	853	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	205:c41fc65bcfb4	854	{
mbed_official	205:c41fc65bcfb4	855	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	205:c41fc65bcfb4	856	}
mbed_official	205:c41fc65bcfb4	857	else
mbed_official	205:c41fc65bcfb4	858	{
mbed_official	205:c41fc65bcfb4	859	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	205:c41fc65bcfb4	860	}
mbed_official	205:c41fc65bcfb4	861
mbed_official	205:c41fc65bcfb4	862	/* Set the UART DMA transfer complete callback */
mbed_official	205:c41fc65bcfb4	863	huart->hdmarx->XferCpltCallback = UART_DMAReceiveCplt;
mbed_official	205:c41fc65bcfb4	864
mbed_official	205:c41fc65bcfb4	865	/* Set the UART DMA Half transfer complete callback */
mbed_official	205:c41fc65bcfb4	866	huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt;
mbed_official	205:c41fc65bcfb4	867
mbed_official	205:c41fc65bcfb4	868	/* Set the DMA error callback */
mbed_official	205:c41fc65bcfb4	869	huart->hdmarx->XferErrorCallback = UART_DMAError;
mbed_official	205:c41fc65bcfb4	870
mbed_official	205:c41fc65bcfb4	871	/* Enable the DMA channel */
mbed_official	205:c41fc65bcfb4	872	tmp = (uint32_t*)&pData;
mbed_official	205:c41fc65bcfb4	873	HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->RDR, (uint32_t)tmp, Size);
mbed_official	205:c41fc65bcfb4	874
mbed_official	205:c41fc65bcfb4	875	/* Enable the DMA transfer for the receiver request by setting the DMAR bit
mbed_official	205:c41fc65bcfb4	876	in the UART CR3 register */
mbed_official	205:c41fc65bcfb4	877	huart->Instance->CR3 \|= USART_CR3_DMAR;
mbed_official	205:c41fc65bcfb4	878
mbed_official	205:c41fc65bcfb4	879	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	880	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	881
mbed_official	205:c41fc65bcfb4	882	return HAL_OK;
mbed_official	205:c41fc65bcfb4	883	}
mbed_official	205:c41fc65bcfb4	884	else
mbed_official	205:c41fc65bcfb4	885	{
mbed_official	205:c41fc65bcfb4	886	return HAL_BUSY;
mbed_official	205:c41fc65bcfb4	887	}
mbed_official	205:c41fc65bcfb4	888	}
mbed_official	205:c41fc65bcfb4	889
mbed_official	205:c41fc65bcfb4	890	/**
mbed_official	205:c41fc65bcfb4	891	* @brief Pauses the DMA Transfer.
mbed_official	205:c41fc65bcfb4	892	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	893	* @retval None
mbed_official	205:c41fc65bcfb4	894	*/
mbed_official	205:c41fc65bcfb4	895	HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	896	{
mbed_official	205:c41fc65bcfb4	897	/* Process Locked */
mbed_official	205:c41fc65bcfb4	898	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	899
mbed_official	205:c41fc65bcfb4	900	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	205:c41fc65bcfb4	901	{
mbed_official	205:c41fc65bcfb4	902	/* Disable the UART DMA Tx request */
mbed_official	205:c41fc65bcfb4	903	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official	205:c41fc65bcfb4	904	}
mbed_official	205:c41fc65bcfb4	905	else if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	205:c41fc65bcfb4	906	{
mbed_official	205:c41fc65bcfb4	907	/* Disable the UART DMA Rx request */
mbed_official	205:c41fc65bcfb4	908	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official	205:c41fc65bcfb4	909	}
mbed_official	205:c41fc65bcfb4	910	else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	205:c41fc65bcfb4	911	{
mbed_official	205:c41fc65bcfb4	912	/* Disable the UART DMA Tx request */
mbed_official	205:c41fc65bcfb4	913	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official	205:c41fc65bcfb4	914	/* Disable the UART DMA Rx request */
mbed_official	205:c41fc65bcfb4	915	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official	205:c41fc65bcfb4	916	}
mbed_official	205:c41fc65bcfb4	917
mbed_official	205:c41fc65bcfb4	918	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	919	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	920
mbed_official	205:c41fc65bcfb4	921	return HAL_OK;
mbed_official	205:c41fc65bcfb4	922	}
mbed_official	205:c41fc65bcfb4	923
mbed_official	205:c41fc65bcfb4	924	/**
mbed_official	205:c41fc65bcfb4	925	* @brief Resumes the DMA Transfer.
mbed_official	205:c41fc65bcfb4	926	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	927	* @retval None
mbed_official	205:c41fc65bcfb4	928	*/
mbed_official	205:c41fc65bcfb4	929	HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	930	{
mbed_official	205:c41fc65bcfb4	931	/* Process Locked */
mbed_official	205:c41fc65bcfb4	932	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	933
mbed_official	205:c41fc65bcfb4	934	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	205:c41fc65bcfb4	935	{
mbed_official	205:c41fc65bcfb4	936	/* Enable the UART DMA Tx request */
mbed_official	205:c41fc65bcfb4	937	huart->Instance->CR3 \|= USART_CR3_DMAT;
mbed_official	205:c41fc65bcfb4	938	}
mbed_official	205:c41fc65bcfb4	939	else if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	205:c41fc65bcfb4	940	{
mbed_official	205:c41fc65bcfb4	941	/* Enable the UART DMA Rx request */
mbed_official	205:c41fc65bcfb4	942	huart->Instance->CR3 \|= USART_CR3_DMAR;
mbed_official	205:c41fc65bcfb4	943	}
mbed_official	205:c41fc65bcfb4	944	else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	205:c41fc65bcfb4	945	{
mbed_official	205:c41fc65bcfb4	946	/* Enable the UART DMA Rx request before the DMA Tx request */
mbed_official	205:c41fc65bcfb4	947	huart->Instance->CR3 \|= USART_CR3_DMAR;
mbed_official	205:c41fc65bcfb4	948	/* Enable the UART DMA Tx request */
mbed_official	205:c41fc65bcfb4	949	huart->Instance->CR3 \|= USART_CR3_DMAT;
mbed_official	205:c41fc65bcfb4	950	}
mbed_official	205:c41fc65bcfb4	951
mbed_official	205:c41fc65bcfb4	952	/* If the UART peripheral is still not enabled, enable it */
mbed_official	205:c41fc65bcfb4	953	if ((huart->Instance->CR1 & USART_CR1_UE) == 0)
mbed_official	205:c41fc65bcfb4	954	{
mbed_official	205:c41fc65bcfb4	955	/* Enable UART peripheral */
mbed_official	205:c41fc65bcfb4	956	__HAL_UART_ENABLE(huart);
mbed_official	205:c41fc65bcfb4	957	}
mbed_official	205:c41fc65bcfb4	958
mbed_official	205:c41fc65bcfb4	959	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	205:c41fc65bcfb4	960	return (UART_CheckIdleState(huart));
mbed_official	205:c41fc65bcfb4	961	}
mbed_official	205:c41fc65bcfb4	962
mbed_official	205:c41fc65bcfb4	963	/**
mbed_official	205:c41fc65bcfb4	964	* @brief Stops the DMA Transfer.
mbed_official	205:c41fc65bcfb4	965	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	966	* @retval None
mbed_official	205:c41fc65bcfb4	967	*/
mbed_official	205:c41fc65bcfb4	968	HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	969	{
mbed_official	205:c41fc65bcfb4	970	/* Process Locked */
mbed_official	205:c41fc65bcfb4	971	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	972
mbed_official	205:c41fc65bcfb4	973	/* Disable the UART Tx/Rx DMA requests */
mbed_official	205:c41fc65bcfb4	974	huart->Instance->CR3 &= ~USART_CR3_DMAT;
mbed_official	205:c41fc65bcfb4	975	huart->Instance->CR3 &= ~USART_CR3_DMAR;
mbed_official	205:c41fc65bcfb4	976
mbed_official	205:c41fc65bcfb4	977	/* Abort the UART DMA tx Stream */
mbed_official	205:c41fc65bcfb4	978	if(huart->hdmatx != NULL)
mbed_official	205:c41fc65bcfb4	979	{
mbed_official	205:c41fc65bcfb4	980	HAL_DMA_Abort(huart->hdmatx);
mbed_official	205:c41fc65bcfb4	981	}
mbed_official	205:c41fc65bcfb4	982	/* Abort the UART DMA rx Stream */
mbed_official	205:c41fc65bcfb4	983	if(huart->hdmarx != NULL)
mbed_official	205:c41fc65bcfb4	984	{
mbed_official	205:c41fc65bcfb4	985	HAL_DMA_Abort(huart->hdmarx);
mbed_official	205:c41fc65bcfb4	986	}
mbed_official	205:c41fc65bcfb4	987
mbed_official	205:c41fc65bcfb4	988	/* Disable UART peripheral */
mbed_official	205:c41fc65bcfb4	989	__HAL_UART_DISABLE(huart);
mbed_official	205:c41fc65bcfb4	990
mbed_official	205:c41fc65bcfb4	991	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	992
mbed_official	205:c41fc65bcfb4	993	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	994	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	995
mbed_official	205:c41fc65bcfb4	996	return HAL_OK;
mbed_official	205:c41fc65bcfb4	997	}
mbed_official	205:c41fc65bcfb4	998
mbed_official	205:c41fc65bcfb4	999
mbed_official	205:c41fc65bcfb4	1000
mbed_official	205:c41fc65bcfb4	1001
mbed_official	205:c41fc65bcfb4	1002	/**
mbed_official	205:c41fc65bcfb4	1003	* @brief This function handles UART Communication Timeout.
mbed_official	205:c41fc65bcfb4	1004	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	1005	* @param Flag: specifies the UART flag to check.
mbed_official	205:c41fc65bcfb4	1006	* @param Status: The new Flag status (SET or RESET).
mbed_official	205:c41fc65bcfb4	1007	* @param Timeout: Timeout duration
mbed_official	205:c41fc65bcfb4	1008	* @retval HAL status
mbed_official	205:c41fc65bcfb4	1009	*/
mbed_official	205:c41fc65bcfb4	1010	HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
mbed_official	205:c41fc65bcfb4	1011	{
mbed_official	205:c41fc65bcfb4	1012	uint32_t tickstart = HAL_GetTick();
mbed_official	205:c41fc65bcfb4	1013
mbed_official	205:c41fc65bcfb4	1014	/* Wait until flag is set */
mbed_official	205:c41fc65bcfb4	1015	if(Status == RESET)
mbed_official	205:c41fc65bcfb4	1016	{
mbed_official	205:c41fc65bcfb4	1017	while(__HAL_UART_GET_FLAG(huart, Flag) == RESET)
mbed_official	205:c41fc65bcfb4	1018	{
mbed_official	205:c41fc65bcfb4	1019	/* Check for the Timeout */
mbed_official	205:c41fc65bcfb4	1020	if(Timeout != HAL_MAX_DELAY)
mbed_official	205:c41fc65bcfb4	1021	{
mbed_official	205:c41fc65bcfb4	1022	if((HAL_GetTick() - tickstart) >= Timeout)
mbed_official	205:c41fc65bcfb4	1023	{
mbed_official	205:c41fc65bcfb4	1024	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official	205:c41fc65bcfb4	1025	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official	205:c41fc65bcfb4	1026	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official	205:c41fc65bcfb4	1027	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	205:c41fc65bcfb4	1028	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	205:c41fc65bcfb4	1029
mbed_official	205:c41fc65bcfb4	1030	huart->State = HAL_UART_STATE_TIMEOUT;
mbed_official	205:c41fc65bcfb4	1031
mbed_official	205:c41fc65bcfb4	1032	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	1033	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	1034
mbed_official	205:c41fc65bcfb4	1035	return HAL_TIMEOUT;
mbed_official	205:c41fc65bcfb4	1036	}
mbed_official	205:c41fc65bcfb4	1037	}
mbed_official	205:c41fc65bcfb4	1038	}
mbed_official	205:c41fc65bcfb4	1039	}
mbed_official	205:c41fc65bcfb4	1040	else
mbed_official	205:c41fc65bcfb4	1041	{
mbed_official	205:c41fc65bcfb4	1042	while(__HAL_UART_GET_FLAG(huart, Flag) != RESET)
mbed_official	205:c41fc65bcfb4	1043	{
mbed_official	205:c41fc65bcfb4	1044	/* Check for the Timeout */
mbed_official	205:c41fc65bcfb4	1045	if(Timeout != HAL_MAX_DELAY)
mbed_official	205:c41fc65bcfb4	1046	{
mbed_official	205:c41fc65bcfb4	1047	if((HAL_GetTick() - tickstart) >= Timeout)
mbed_official	205:c41fc65bcfb4	1048	{
mbed_official	205:c41fc65bcfb4	1049	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official	205:c41fc65bcfb4	1050	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official	205:c41fc65bcfb4	1051	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official	205:c41fc65bcfb4	1052	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	205:c41fc65bcfb4	1053	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	205:c41fc65bcfb4	1054
mbed_official	205:c41fc65bcfb4	1055	huart->State = HAL_UART_STATE_TIMEOUT;
mbed_official	205:c41fc65bcfb4	1056
mbed_official	205:c41fc65bcfb4	1057	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	1058	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	1059
mbed_official	205:c41fc65bcfb4	1060	return HAL_TIMEOUT;
mbed_official	205:c41fc65bcfb4	1061	}
mbed_official	205:c41fc65bcfb4	1062	}
mbed_official	205:c41fc65bcfb4	1063	}
mbed_official	205:c41fc65bcfb4	1064	}
mbed_official	205:c41fc65bcfb4	1065	return HAL_OK;
mbed_official	205:c41fc65bcfb4	1066	}
mbed_official	205:c41fc65bcfb4	1067
mbed_official	205:c41fc65bcfb4	1068
mbed_official	205:c41fc65bcfb4	1069	/**
mbed_official	205:c41fc65bcfb4	1070	* @brief DMA UART transmit process complete callback
mbed_official	205:c41fc65bcfb4	1071	* @param hdma: DMA handle
mbed_official	205:c41fc65bcfb4	1072	* @retval None
mbed_official	205:c41fc65bcfb4	1073	*/
mbed_official	205:c41fc65bcfb4	1074	static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
mbed_official	205:c41fc65bcfb4	1075	{
mbed_official	205:c41fc65bcfb4	1076	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	205:c41fc65bcfb4	1077	huart->TxXferCount = 0;
mbed_official	205:c41fc65bcfb4	1078
mbed_official	205:c41fc65bcfb4	1079	/* Disable the DMA transfer for transmit request by setting the DMAT bit
mbed_official	205:c41fc65bcfb4	1080	in the UART CR3 register */
mbed_official	205:c41fc65bcfb4	1081	huart->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_DMAT);
mbed_official	205:c41fc65bcfb4	1082
mbed_official	205:c41fc65bcfb4	1083	/* Wait for UART TC Flag */
mbed_official	205:c41fc65bcfb4	1084	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, HAL_UART_TXDMA_TIMEOUTVALUE) != HAL_OK)
mbed_official	205:c41fc65bcfb4	1085	{
mbed_official	205:c41fc65bcfb4	1086	/* Timeout Occured */
mbed_official	205:c41fc65bcfb4	1087	HAL_UART_ErrorCallback(huart);
mbed_official	205:c41fc65bcfb4	1088	}
mbed_official	205:c41fc65bcfb4	1089	else
mbed_official	205:c41fc65bcfb4	1090	{
mbed_official	205:c41fc65bcfb4	1091	/* No Timeout */
mbed_official	205:c41fc65bcfb4	1092	/* Check if a receive Process is ongoing or not */
mbed_official	205:c41fc65bcfb4	1093	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	205:c41fc65bcfb4	1094	{
mbed_official	205:c41fc65bcfb4	1095	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	205:c41fc65bcfb4	1096	}
mbed_official	205:c41fc65bcfb4	1097	else
mbed_official	205:c41fc65bcfb4	1098	{
mbed_official	205:c41fc65bcfb4	1099	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1100	}
mbed_official	205:c41fc65bcfb4	1101	HAL_UART_TxCpltCallback(huart);
mbed_official	205:c41fc65bcfb4	1102	}
mbed_official	205:c41fc65bcfb4	1103	}
mbed_official	205:c41fc65bcfb4	1104
mbed_official	205:c41fc65bcfb4	1105	/**
mbed_official	205:c41fc65bcfb4	1106	* @brief DMA UART transmit process half complete callback
mbed_official	205:c41fc65bcfb4	1107	* @param hdma : DMA handle
mbed_official	205:c41fc65bcfb4	1108	* @retval None
mbed_official	205:c41fc65bcfb4	1109	*/
mbed_official	205:c41fc65bcfb4	1110	static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official	205:c41fc65bcfb4	1111	{
mbed_official	205:c41fc65bcfb4	1112	UART_HandleTypeDef* huart = (UART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
mbed_official	205:c41fc65bcfb4	1113
mbed_official	205:c41fc65bcfb4	1114	HAL_UART_TxHalfCpltCallback(huart);
mbed_official	205:c41fc65bcfb4	1115	}
mbed_official	205:c41fc65bcfb4	1116
mbed_official	205:c41fc65bcfb4	1117	/**
mbed_official	205:c41fc65bcfb4	1118	* @brief DMA UART receive process complete callback
mbed_official	205:c41fc65bcfb4	1119	* @param hdma: DMA handle
mbed_official	205:c41fc65bcfb4	1120	* @retval None
mbed_official	205:c41fc65bcfb4	1121	*/
mbed_official	205:c41fc65bcfb4	1122	static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
mbed_official	205:c41fc65bcfb4	1123	{
mbed_official	205:c41fc65bcfb4	1124	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	205:c41fc65bcfb4	1125	huart->RxXferCount = 0;
mbed_official	205:c41fc65bcfb4	1126
mbed_official	205:c41fc65bcfb4	1127	/* Disable the DMA transfer for the receiver request by setting the DMAR bit
mbed_official	205:c41fc65bcfb4	1128	in the UART CR3 register */
mbed_official	205:c41fc65bcfb4	1129	huart->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_DMAR);
mbed_official	205:c41fc65bcfb4	1130
mbed_official	205:c41fc65bcfb4	1131	/* Check if a transmit Process is ongoing or not */
mbed_official	205:c41fc65bcfb4	1132	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	205:c41fc65bcfb4	1133	{
mbed_official	205:c41fc65bcfb4	1134	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	205:c41fc65bcfb4	1135	}
mbed_official	205:c41fc65bcfb4	1136	else
mbed_official	205:c41fc65bcfb4	1137	{
mbed_official	205:c41fc65bcfb4	1138	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1139	}
mbed_official	205:c41fc65bcfb4	1140	HAL_UART_RxCpltCallback(huart);
mbed_official	205:c41fc65bcfb4	1141	}
mbed_official	205:c41fc65bcfb4	1142
mbed_official	205:c41fc65bcfb4	1143	/**
mbed_official	205:c41fc65bcfb4	1144	* @brief DMA UART receive process half complete callback
mbed_official	205:c41fc65bcfb4	1145	* @param hdma : DMA handle
mbed_official	205:c41fc65bcfb4	1146	* @retval None
mbed_official	205:c41fc65bcfb4	1147	*/
mbed_official	205:c41fc65bcfb4	1148	static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official	205:c41fc65bcfb4	1149	{
mbed_official	205:c41fc65bcfb4	1150	UART_HandleTypeDef* huart = (UART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
mbed_official	205:c41fc65bcfb4	1151
mbed_official	205:c41fc65bcfb4	1152	HAL_UART_RxHalfCpltCallback(huart);
mbed_official	205:c41fc65bcfb4	1153	}
mbed_official	205:c41fc65bcfb4	1154
mbed_official	205:c41fc65bcfb4	1155	/**
mbed_official	205:c41fc65bcfb4	1156	* @brief DMA UART communication error callback
mbed_official	205:c41fc65bcfb4	1157	* @param hdma: DMA handle
mbed_official	205:c41fc65bcfb4	1158	* @retval None
mbed_official	205:c41fc65bcfb4	1159	*/
mbed_official	205:c41fc65bcfb4	1160	static void UART_DMAError(DMA_HandleTypeDef *hdma)
mbed_official	205:c41fc65bcfb4	1161	{
mbed_official	205:c41fc65bcfb4	1162	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	205:c41fc65bcfb4	1163	huart->RxXferCount = 0;
mbed_official	205:c41fc65bcfb4	1164	huart->TxXferCount = 0;
mbed_official	205:c41fc65bcfb4	1165	huart->State= HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1166	huart->ErrorCode \|= HAL_UART_ERROR_DMA;
mbed_official	205:c41fc65bcfb4	1167	HAL_UART_ErrorCallback(huart);
mbed_official	205:c41fc65bcfb4	1168	}
mbed_official	205:c41fc65bcfb4	1169
mbed_official	205:c41fc65bcfb4	1170	/**
mbed_official	205:c41fc65bcfb4	1171	* @brief Tx Transfer completed callbacks
mbed_official	205:c41fc65bcfb4	1172	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	1173	* @retval None
mbed_official	205:c41fc65bcfb4	1174	*/
mbed_official	205:c41fc65bcfb4	1175	__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1176	{
mbed_official	205:c41fc65bcfb4	1177	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	205:c41fc65bcfb4	1178	the HAL_UART_TxCpltCallback can be implemented in the user file
mbed_official	205:c41fc65bcfb4	1179	*/
mbed_official	205:c41fc65bcfb4	1180	}
mbed_official	205:c41fc65bcfb4	1181
mbed_official	205:c41fc65bcfb4	1182	/**
mbed_official	205:c41fc65bcfb4	1183	* @brief Tx Half Transfer completed callbacks.
mbed_official	205:c41fc65bcfb4	1184	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	1185	* @retval None
mbed_official	205:c41fc65bcfb4	1186	*/
mbed_official	205:c41fc65bcfb4	1187	__weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1188	{
mbed_official	205:c41fc65bcfb4	1189	/* NOTE: This function should not be modified, when the callback is needed,
mbed_official	205:c41fc65bcfb4	1190	the HAL_UART_TxCpltCallback can be implemented in the user file
mbed_official	205:c41fc65bcfb4	1191	*/
mbed_official	205:c41fc65bcfb4	1192	}
mbed_official	205:c41fc65bcfb4	1193
mbed_official	205:c41fc65bcfb4	1194	/**
mbed_official	205:c41fc65bcfb4	1195	* @brief Rx Transfer completed callbacks
mbed_official	205:c41fc65bcfb4	1196	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	1197	* @retval None
mbed_official	205:c41fc65bcfb4	1198	*/
mbed_official	205:c41fc65bcfb4	1199	__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1200	{
mbed_official	205:c41fc65bcfb4	1201	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	205:c41fc65bcfb4	1202	the HAL_UART_TxCpltCallback can be implemented in the user file
mbed_official	205:c41fc65bcfb4	1203	*/
mbed_official	205:c41fc65bcfb4	1204	}
mbed_official	205:c41fc65bcfb4	1205
mbed_official	205:c41fc65bcfb4	1206	/**
mbed_official	205:c41fc65bcfb4	1207	* @brief Rx Half Transfer completed callbacks.
mbed_official	205:c41fc65bcfb4	1208	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	1209	* @retval None
mbed_official	205:c41fc65bcfb4	1210	*/
mbed_official	205:c41fc65bcfb4	1211	__weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1212	{
mbed_official	205:c41fc65bcfb4	1213	/* NOTE: This function should not be modified, when the callback is needed,
mbed_official	205:c41fc65bcfb4	1214	the HAL_UART_TxCpltCallback can be implemented in the user file
mbed_official	205:c41fc65bcfb4	1215	*/
mbed_official	205:c41fc65bcfb4	1216	}
mbed_official	205:c41fc65bcfb4	1217
mbed_official	205:c41fc65bcfb4	1218	/**
mbed_official	205:c41fc65bcfb4	1219	* @brief UART error callbacks
mbed_official	205:c41fc65bcfb4	1220	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	1221	* @retval None
mbed_official	205:c41fc65bcfb4	1222	*/
mbed_official	205:c41fc65bcfb4	1223	__weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1224	{
mbed_official	205:c41fc65bcfb4	1225	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	205:c41fc65bcfb4	1226	the HAL_UART_ErrorCallback can be implemented in the user file
mbed_official	205:c41fc65bcfb4	1227	*/
mbed_official	205:c41fc65bcfb4	1228	}
mbed_official	205:c41fc65bcfb4	1229
mbed_official	205:c41fc65bcfb4	1230
mbed_official	205:c41fc65bcfb4	1231	/**
mbed_official	205:c41fc65bcfb4	1232	* @brief Send an amount of data in interrupt mode
mbed_official	205:c41fc65bcfb4	1233	* Function called under interruption only, once
mbed_official	205:c41fc65bcfb4	1234	* interruptions have been enabled by HAL_UART_Transmit_IT()
mbed_official	205:c41fc65bcfb4	1235	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	1236	* @retval HAL status
mbed_official	205:c41fc65bcfb4	1237	*/
mbed_official	205:c41fc65bcfb4	1238	HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1239	{
mbed_official	205:c41fc65bcfb4	1240	uint16_t* tmp;
mbed_official	205:c41fc65bcfb4	1241
mbed_official	205:c41fc65bcfb4	1242	if ((huart->State == HAL_UART_STATE_BUSY_TX) \|\| (huart->State == HAL_UART_STATE_BUSY_TX_RX))
mbed_official	205:c41fc65bcfb4	1243	{
mbed_official	205:c41fc65bcfb4	1244
mbed_official	205:c41fc65bcfb4	1245	if(huart->TxXferCount == 0)
mbed_official	205:c41fc65bcfb4	1246	{
mbed_official	205:c41fc65bcfb4	1247	/* Disable the UART Transmit Complete Interrupt */
mbed_official	205:c41fc65bcfb4	1248	__HAL_UART_DISABLE_IT(huart, UART_IT_TC);
mbed_official	205:c41fc65bcfb4	1249
mbed_official	205:c41fc65bcfb4	1250	/* Check if a receive Process is ongoing or not */
mbed_official	205:c41fc65bcfb4	1251	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	205:c41fc65bcfb4	1252	{
mbed_official	205:c41fc65bcfb4	1253	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	205:c41fc65bcfb4	1254	}
mbed_official	205:c41fc65bcfb4	1255	else
mbed_official	205:c41fc65bcfb4	1256	{
mbed_official	205:c41fc65bcfb4	1257	/* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	205:c41fc65bcfb4	1258	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	205:c41fc65bcfb4	1259
mbed_official	205:c41fc65bcfb4	1260	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1261	}
mbed_official	205:c41fc65bcfb4	1262
mbed_official	205:c41fc65bcfb4	1263	HAL_UART_TxCpltCallback(huart);
mbed_official	205:c41fc65bcfb4	1264
mbed_official	205:c41fc65bcfb4	1265	return HAL_OK;
mbed_official	205:c41fc65bcfb4	1266	}
mbed_official	205:c41fc65bcfb4	1267	else
mbed_official	205:c41fc65bcfb4	1268	{
mbed_official	205:c41fc65bcfb4	1269	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	205:c41fc65bcfb4	1270	{
mbed_official	205:c41fc65bcfb4	1271	tmp = (uint16_t*) huart->pTxBuffPtr;
mbed_official	205:c41fc65bcfb4	1272	huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
mbed_official	205:c41fc65bcfb4	1273	huart->pTxBuffPtr += 2;
mbed_official	205:c41fc65bcfb4	1274	}
mbed_official	205:c41fc65bcfb4	1275	else
mbed_official	205:c41fc65bcfb4	1276	{
mbed_official	205:c41fc65bcfb4	1277	huart->Instance->TDR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0xFF);
mbed_official	205:c41fc65bcfb4	1278	}
mbed_official	205:c41fc65bcfb4	1279
mbed_official	205:c41fc65bcfb4	1280	huart->TxXferCount--;
mbed_official	205:c41fc65bcfb4	1281
mbed_official	205:c41fc65bcfb4	1282	return HAL_OK;
mbed_official	205:c41fc65bcfb4	1283	}
mbed_official	205:c41fc65bcfb4	1284	}
mbed_official	205:c41fc65bcfb4	1285	else
mbed_official	205:c41fc65bcfb4	1286	{
mbed_official	205:c41fc65bcfb4	1287	return HAL_BUSY;
mbed_official	205:c41fc65bcfb4	1288	}
mbed_official	205:c41fc65bcfb4	1289	}
mbed_official	205:c41fc65bcfb4	1290
mbed_official	205:c41fc65bcfb4	1291	/**
mbed_official	205:c41fc65bcfb4	1292	* @brief Receive an amount of data in interrupt mode
mbed_official	205:c41fc65bcfb4	1293	* Function called under interruption only, once
mbed_official	205:c41fc65bcfb4	1294	* interruptions have been enabled by HAL_UART_Receive_IT()
mbed_official	205:c41fc65bcfb4	1295	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	1296	* @retval HAL status
mbed_official	205:c41fc65bcfb4	1297	*/
mbed_official	205:c41fc65bcfb4	1298	HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1299	{
mbed_official	205:c41fc65bcfb4	1300	uint16_t* tmp;
mbed_official	205:c41fc65bcfb4	1301	uint16_t uhMask = huart->Mask;
mbed_official	205:c41fc65bcfb4	1302
mbed_official	205:c41fc65bcfb4	1303	if((huart->State == HAL_UART_STATE_BUSY_RX) \|\| (huart->State == HAL_UART_STATE_BUSY_TX_RX))
mbed_official	205:c41fc65bcfb4	1304	{
mbed_official	205:c41fc65bcfb4	1305
mbed_official	205:c41fc65bcfb4	1306	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	205:c41fc65bcfb4	1307	{
mbed_official	205:c41fc65bcfb4	1308	tmp = (uint16_t*) huart->pRxBuffPtr ;
mbed_official	205:c41fc65bcfb4	1309	*tmp = (uint16_t)(huart->Instance->RDR & uhMask);
mbed_official	205:c41fc65bcfb4	1310	huart->pRxBuffPtr +=2;
mbed_official	205:c41fc65bcfb4	1311	}
mbed_official	205:c41fc65bcfb4	1312	else
mbed_official	205:c41fc65bcfb4	1313	{
mbed_official	205:c41fc65bcfb4	1314	*huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
mbed_official	205:c41fc65bcfb4	1315	}
mbed_official	205:c41fc65bcfb4	1316
mbed_official	205:c41fc65bcfb4	1317	if(--huart->RxXferCount == 0)
mbed_official	205:c41fc65bcfb4	1318	{
mbed_official	205:c41fc65bcfb4	1319	while(HAL_IS_BIT_SET(huart->Instance->ISR, UART_FLAG_RXNE))
mbed_official	205:c41fc65bcfb4	1320	{
mbed_official	205:c41fc65bcfb4	1321	}
mbed_official	205:c41fc65bcfb4	1322	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official	205:c41fc65bcfb4	1323
mbed_official	205:c41fc65bcfb4	1324	/* Check if a transmit Process is ongoing or not */
mbed_official	205:c41fc65bcfb4	1325	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	205:c41fc65bcfb4	1326	{
mbed_official	205:c41fc65bcfb4	1327	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	205:c41fc65bcfb4	1328	}
mbed_official	205:c41fc65bcfb4	1329	else
mbed_official	205:c41fc65bcfb4	1330	{
mbed_official	205:c41fc65bcfb4	1331	/* Disable the UART Parity Error Interrupt */
mbed_official	205:c41fc65bcfb4	1332	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	205:c41fc65bcfb4	1333
mbed_official	205:c41fc65bcfb4	1334	/* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	205:c41fc65bcfb4	1335	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	205:c41fc65bcfb4	1336
mbed_official	205:c41fc65bcfb4	1337	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1338	}
mbed_official	205:c41fc65bcfb4	1339
mbed_official	205:c41fc65bcfb4	1340	HAL_UART_RxCpltCallback(huart);
mbed_official	205:c41fc65bcfb4	1341
mbed_official	205:c41fc65bcfb4	1342	return HAL_OK;
mbed_official	205:c41fc65bcfb4	1343	}
mbed_official	205:c41fc65bcfb4	1344
mbed_official	205:c41fc65bcfb4	1345	return HAL_OK;
mbed_official	205:c41fc65bcfb4	1346	}
mbed_official	205:c41fc65bcfb4	1347	else
mbed_official	205:c41fc65bcfb4	1348	{
mbed_official	205:c41fc65bcfb4	1349	return HAL_BUSY;
mbed_official	205:c41fc65bcfb4	1350	}
mbed_official	205:c41fc65bcfb4	1351	}
mbed_official	205:c41fc65bcfb4	1352
mbed_official	205:c41fc65bcfb4	1353	/**
mbed_official	205:c41fc65bcfb4	1354	* @}
mbed_official	205:c41fc65bcfb4	1355	*/
mbed_official	205:c41fc65bcfb4	1356
mbed_official	205:c41fc65bcfb4	1357	/** @defgroup HAL_UART_Group3 Peripheral Control functions
mbed_official	205:c41fc65bcfb4	1358	* @brief UART control functions
mbed_official	205:c41fc65bcfb4	1359	*
mbed_official	205:c41fc65bcfb4	1360	@verbatim
mbed_official	205:c41fc65bcfb4	1361	===============================================================================
mbed_official	205:c41fc65bcfb4	1362	##### Peripheral Control functions #####
mbed_official	205:c41fc65bcfb4	1363	===============================================================================
mbed_official	205:c41fc65bcfb4	1364	[..]
mbed_official	205:c41fc65bcfb4	1365	This subsection provides a set of functions allowing to control the UART.
mbed_official	205:c41fc65bcfb4	1366	(+) HAL_UART_GetState() API is helpful to check in run-time the state of the UART peripheral.
mbed_official	205:c41fc65bcfb4	1367	(+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
mbed_official	205:c41fc65bcfb4	1368	(+) HAL_MultiProcessor_DisableMuteMode() API disables mute mode
mbed_official	205:c41fc65bcfb4	1369	(+) HAL_MultiProcessor_EnterMuteMode() API enters mute mode
mbed_official	205:c41fc65bcfb4	1370	(+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
mbed_official	205:c41fc65bcfb4	1371	(+) HAL_UART_EnableStopMode() API enables the UART to wake up the MCU from stop mode
mbed_official	205:c41fc65bcfb4	1372	(+) HAL_UART_DisableStopMode() API disables the above functionality
mbed_official	205:c41fc65bcfb4	1373	(+) UART_SetConfig() API configures the UART peripheral
mbed_official	205:c41fc65bcfb4	1374	(+) UART_AdvFeatureConfig() API optionally configures the UART advanced features
mbed_official	205:c41fc65bcfb4	1375	(+) UART_CheckIdleState() API ensures that TEACK and/or REACK are set after initialization
mbed_official	205:c41fc65bcfb4	1376	(+) UART_Wakeup_AddressConfig() API configures the wake-up from stop mode parameters
mbed_official	205:c41fc65bcfb4	1377	(+) HAL_HalfDuplex_EnableTransmitter() API disables receiver and enables transmitter
mbed_official	205:c41fc65bcfb4	1378	(+) HAL_HalfDuplex_EnableReceiver() API disables transmitter and enables receiver
mbed_official	205:c41fc65bcfb4	1379	@endverbatim
mbed_official	205:c41fc65bcfb4	1380	* @{
mbed_official	205:c41fc65bcfb4	1381	*/
mbed_official	205:c41fc65bcfb4	1382
mbed_official	205:c41fc65bcfb4	1383	/**
mbed_official	205:c41fc65bcfb4	1384	* @brief Enable UART in mute mode (doesn't mean UART enters mute mode;
mbed_official	205:c41fc65bcfb4	1385	* to enter mute mode, HAL_MultiProcessor_EnterMuteMode() API must be called)
mbed_official	205:c41fc65bcfb4	1386	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	1387	* @retval HAL status
mbed_official	205:c41fc65bcfb4	1388	*/
mbed_official	205:c41fc65bcfb4	1389	HAL_StatusTypeDef HAL_MultiProcessor_EnableMuteMode(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1390	{
mbed_official	205:c41fc65bcfb4	1391	/* Process Locked */
mbed_official	205:c41fc65bcfb4	1392	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	1393
mbed_official	205:c41fc65bcfb4	1394	huart->State = HAL_UART_STATE_BUSY;
mbed_official	205:c41fc65bcfb4	1395
mbed_official	205:c41fc65bcfb4	1396	/* Enable USART mute mode by setting the MME bit in the CR1 register */
mbed_official	205:c41fc65bcfb4	1397	huart->Instance->CR1 \|= USART_CR1_MME;
mbed_official	205:c41fc65bcfb4	1398
mbed_official	205:c41fc65bcfb4	1399	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1400
mbed_official	205:c41fc65bcfb4	1401	return (UART_CheckIdleState(huart));
mbed_official	205:c41fc65bcfb4	1402	}
mbed_official	205:c41fc65bcfb4	1403
mbed_official	205:c41fc65bcfb4	1404	/**
mbed_official	205:c41fc65bcfb4	1405	* @brief Disable UART mute mode (doesn't mean it actually wakes up the software,
mbed_official	205:c41fc65bcfb4	1406	* as it may not have been in mute mode at this very moment).
mbed_official	205:c41fc65bcfb4	1407	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	1408	* @retval HAL status
mbed_official	205:c41fc65bcfb4	1409	*/
mbed_official	205:c41fc65bcfb4	1410	HAL_StatusTypeDef HAL_MultiProcessor_DisableMuteMode(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1411	{
mbed_official	205:c41fc65bcfb4	1412	/* Process Locked */
mbed_official	205:c41fc65bcfb4	1413	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	1414
mbed_official	205:c41fc65bcfb4	1415	huart->State = HAL_UART_STATE_BUSY;
mbed_official	205:c41fc65bcfb4	1416
mbed_official	205:c41fc65bcfb4	1417	/* Disable USART mute mode by clearing the MME bit in the CR1 register */
mbed_official	205:c41fc65bcfb4	1418	huart->Instance->CR1 &= ~(USART_CR1_MME);
mbed_official	205:c41fc65bcfb4	1419
mbed_official	205:c41fc65bcfb4	1420	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1421
mbed_official	205:c41fc65bcfb4	1422	return (UART_CheckIdleState(huart));
mbed_official	205:c41fc65bcfb4	1423	}
mbed_official	205:c41fc65bcfb4	1424
mbed_official	205:c41fc65bcfb4	1425	/**
mbed_official	205:c41fc65bcfb4	1426	* @brief Enter UART mute mode (means UART actually enters mute mode).
mbed_official	205:c41fc65bcfb4	1427	* To exit from mute mode, HAL_MultiProcessor_DisableMuteMode() API must be called.
mbed_official	205:c41fc65bcfb4	1428	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	1429	* @retval HAL status
mbed_official	205:c41fc65bcfb4	1430	*/
mbed_official	205:c41fc65bcfb4	1431	void HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1432	{
mbed_official	205:c41fc65bcfb4	1433	__HAL_UART_SEND_REQ(huart, UART_MUTE_MODE_REQUEST);
mbed_official	205:c41fc65bcfb4	1434	}
mbed_official	205:c41fc65bcfb4	1435
mbed_official	205:c41fc65bcfb4	1436
mbed_official	205:c41fc65bcfb4	1437
mbed_official	205:c41fc65bcfb4	1438	/**
mbed_official	205:c41fc65bcfb4	1439	* @brief return the UART state
mbed_official	205:c41fc65bcfb4	1440	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	1441	* @retval HAL state
mbed_official	205:c41fc65bcfb4	1442	*/
mbed_official	205:c41fc65bcfb4	1443	HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1444	{
mbed_official	205:c41fc65bcfb4	1445	return huart->State;
mbed_official	205:c41fc65bcfb4	1446	}
mbed_official	205:c41fc65bcfb4	1447
mbed_official	205:c41fc65bcfb4	1448	/**
mbed_official	205:c41fc65bcfb4	1449	* @brief Return the UART error code
mbed_official	205:c41fc65bcfb4	1450	* @param huart : pointer to a UART_HandleTypeDef structure that contains
mbed_official	205:c41fc65bcfb4	1451	* the configuration information for the specified UART.
mbed_official	205:c41fc65bcfb4	1452	* @retval UART Error Code
mbed_official	205:c41fc65bcfb4	1453	*/
mbed_official	205:c41fc65bcfb4	1454	uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1455	{
mbed_official	205:c41fc65bcfb4	1456	return huart->ErrorCode;
mbed_official	205:c41fc65bcfb4	1457	}
mbed_official	205:c41fc65bcfb4	1458
mbed_official	205:c41fc65bcfb4	1459	/**
mbed_official	205:c41fc65bcfb4	1460	* @brief Configure the UART peripheral
mbed_official	205:c41fc65bcfb4	1461	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	1462	* @retval None
mbed_official	205:c41fc65bcfb4	1463	*/
mbed_official	205:c41fc65bcfb4	1464	HAL_StatusTypeDef UART_SetConfig(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1465	{
mbed_official	205:c41fc65bcfb4	1466	uint32_t tmpreg = 0x00000000;
mbed_official	205:c41fc65bcfb4	1467	UART_ClockSourceTypeDef clocksource = UART_CLOCKSOURCE_UNDEFINED;
mbed_official	205:c41fc65bcfb4	1468	uint16_t brrtemp = 0x0000;
mbed_official	205:c41fc65bcfb4	1469	uint16_t usartdiv = 0x0000;
mbed_official	205:c41fc65bcfb4	1470	HAL_StatusTypeDef ret = HAL_OK;
mbed_official	205:c41fc65bcfb4	1471
mbed_official	205:c41fc65bcfb4	1472	/* Check the parameters */
mbed_official	205:c41fc65bcfb4	1473	assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
mbed_official	205:c41fc65bcfb4	1474	assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
mbed_official	205:c41fc65bcfb4	1475	assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
mbed_official	205:c41fc65bcfb4	1476	assert_param(IS_UART_PARITY(huart->Init.Parity));
mbed_official	205:c41fc65bcfb4	1477	assert_param(IS_UART_MODE(huart->Init.Mode));
mbed_official	205:c41fc65bcfb4	1478	assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
mbed_official	205:c41fc65bcfb4	1479	assert_param(IS_UART_ONEBIT_SAMPLING(huart->Init.OneBitSampling));
mbed_official	205:c41fc65bcfb4	1480
mbed_official	205:c41fc65bcfb4	1481
mbed_official	205:c41fc65bcfb4	1482	/-------------------------- USART CR1 Configuration -----------------------/
mbed_official	205:c41fc65bcfb4	1483	/* Clear M, PCE, PS, TE, RE and OVER8 bits and configure
mbed_official	205:c41fc65bcfb4	1484	* the UART Word Length, Parity, Mode and oversampling:
mbed_official	205:c41fc65bcfb4	1485	* set the M bits according to huart->Init.WordLength value
mbed_official	205:c41fc65bcfb4	1486	* set PCE and PS bits according to huart->Init.Parity value
mbed_official	205:c41fc65bcfb4	1487	* set TE and RE bits according to huart->Init.Mode value
mbed_official	205:c41fc65bcfb4	1488	* set OVER8 bit according to huart->Init.OverSampling value */
mbed_official	205:c41fc65bcfb4	1489	tmpreg = (uint32_t)huart->Init.WordLength \| huart->Init.Parity \| huart->Init.Mode \| huart->Init.OverSampling ;
mbed_official	205:c41fc65bcfb4	1490	MODIFY_REG(huart->Instance->CR1, UART_CR1_FIELDS, tmpreg);
mbed_official	205:c41fc65bcfb4	1491
mbed_official	205:c41fc65bcfb4	1492	/-------------------------- USART CR2 Configuration -----------------------/
mbed_official	205:c41fc65bcfb4	1493	/* Configure the UART Stop Bits: Set STOP[13:12] bits according
mbed_official	205:c41fc65bcfb4	1494	* to huart->Init.StopBits value */
mbed_official	205:c41fc65bcfb4	1495	MODIFY_REG(huart->Instance->CR2, USART_CR2_STOP, huart->Init.StopBits);
mbed_official	205:c41fc65bcfb4	1496
mbed_official	205:c41fc65bcfb4	1497	/-------------------------- USART CR3 Configuration -----------------------/
mbed_official	205:c41fc65bcfb4	1498	/* Configure
mbed_official	205:c41fc65bcfb4	1499	* - UART HardWare Flow Control: set CTSE and RTSE bits according
mbed_official	205:c41fc65bcfb4	1500	* to huart->Init.HwFlowCtl value
mbed_official	205:c41fc65bcfb4	1501	* - one-bit sampling method versus three samples' majority rule according
mbed_official	205:c41fc65bcfb4	1502	* to huart->Init.OneBitSampling */
mbed_official	205:c41fc65bcfb4	1503	tmpreg = (uint32_t)huart->Init.HwFlowCtl \| huart->Init.OneBitSampling ;
mbed_official	205:c41fc65bcfb4	1504	MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE \| USART_CR3_CTSE \| USART_CR3_ONEBIT), tmpreg);
mbed_official	205:c41fc65bcfb4	1505
mbed_official	205:c41fc65bcfb4	1506	/-------------------------- USART BRR Configuration -----------------------/
mbed_official	205:c41fc65bcfb4	1507	__HAL_UART_GETCLOCKSOURCE(huart, clocksource);
mbed_official	205:c41fc65bcfb4	1508
mbed_official	205:c41fc65bcfb4	1509	/* Check the Over Sampling to set Baud Rate Register */
mbed_official	205:c41fc65bcfb4	1510	if (huart->Init.OverSampling == UART_OVERSAMPLING_8)
mbed_official	205:c41fc65bcfb4	1511	{
mbed_official	205:c41fc65bcfb4	1512	switch (clocksource)
mbed_official	205:c41fc65bcfb4	1513	{
mbed_official	205:c41fc65bcfb4	1514	case UART_CLOCKSOURCE_PCLK1:
mbed_official	205:c41fc65bcfb4	1515	usartdiv = (uint16_t)(__DIV_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official	205:c41fc65bcfb4	1516	break;
mbed_official	205:c41fc65bcfb4	1517	case UART_CLOCKSOURCE_HSI:
mbed_official	205:c41fc65bcfb4	1518	usartdiv = (uint16_t)(__DIV_SAMPLING8(HSI_VALUE, huart->Init.BaudRate));
mbed_official	205:c41fc65bcfb4	1519	break;
mbed_official	205:c41fc65bcfb4	1520	case UART_CLOCKSOURCE_SYSCLK:
mbed_official	205:c41fc65bcfb4	1521	usartdiv = (uint16_t)(__DIV_SAMPLING8(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official	205:c41fc65bcfb4	1522	break;
mbed_official	205:c41fc65bcfb4	1523	case UART_CLOCKSOURCE_LSE:
mbed_official	205:c41fc65bcfb4	1524	usartdiv = (uint16_t)(__DIV_SAMPLING8(LSE_VALUE, huart->Init.BaudRate));
mbed_official	205:c41fc65bcfb4	1525	break;
mbed_official	205:c41fc65bcfb4	1526	case UART_CLOCKSOURCE_UNDEFINED:
mbed_official	205:c41fc65bcfb4	1527	default:
mbed_official	205:c41fc65bcfb4	1528	ret = HAL_ERROR;
mbed_official	205:c41fc65bcfb4	1529	break;
mbed_official	205:c41fc65bcfb4	1530	}
mbed_official	205:c41fc65bcfb4	1531
mbed_official	205:c41fc65bcfb4	1532	brrtemp = usartdiv & 0xFFF0;
mbed_official	205:c41fc65bcfb4	1533	brrtemp \|= ((usartdiv & 0x000F) >> 1U);
mbed_official	205:c41fc65bcfb4	1534	huart->Instance->BRR = brrtemp;
mbed_official	205:c41fc65bcfb4	1535	}
mbed_official	205:c41fc65bcfb4	1536	else
mbed_official	205:c41fc65bcfb4	1537	{
mbed_official	205:c41fc65bcfb4	1538	switch (clocksource)
mbed_official	205:c41fc65bcfb4	1539	{
mbed_official	205:c41fc65bcfb4	1540	case UART_CLOCKSOURCE_PCLK1:
mbed_official	205:c41fc65bcfb4	1541	huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official	205:c41fc65bcfb4	1542	break;
mbed_official	205:c41fc65bcfb4	1543	case UART_CLOCKSOURCE_HSI:
mbed_official	205:c41fc65bcfb4	1544	huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HSI_VALUE, huart->Init.BaudRate));
mbed_official	205:c41fc65bcfb4	1545	break;
mbed_official	205:c41fc65bcfb4	1546	case UART_CLOCKSOURCE_SYSCLK:
mbed_official	205:c41fc65bcfb4	1547	huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official	205:c41fc65bcfb4	1548	break;
mbed_official	205:c41fc65bcfb4	1549	case UART_CLOCKSOURCE_LSE:
mbed_official	205:c41fc65bcfb4	1550	huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(LSE_VALUE, huart->Init.BaudRate));
mbed_official	205:c41fc65bcfb4	1551	break;
mbed_official	205:c41fc65bcfb4	1552	case UART_CLOCKSOURCE_UNDEFINED:
mbed_official	205:c41fc65bcfb4	1553	default:
mbed_official	205:c41fc65bcfb4	1554	ret = HAL_ERROR;
mbed_official	205:c41fc65bcfb4	1555	break;
mbed_official	205:c41fc65bcfb4	1556	}
mbed_official	205:c41fc65bcfb4	1557	}
mbed_official	205:c41fc65bcfb4	1558
mbed_official	205:c41fc65bcfb4	1559	return ret;
mbed_official	205:c41fc65bcfb4	1560
mbed_official	205:c41fc65bcfb4	1561	}
mbed_official	205:c41fc65bcfb4	1562
mbed_official	205:c41fc65bcfb4	1563
mbed_official	205:c41fc65bcfb4	1564	/**
mbed_official	205:c41fc65bcfb4	1565	* @brief Configure the UART peripheral advanced feautures
mbed_official	205:c41fc65bcfb4	1566	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	1567	* @retval None
mbed_official	205:c41fc65bcfb4	1568	*/
mbed_official	205:c41fc65bcfb4	1569	void UART_AdvFeatureConfig(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1570	{
mbed_official	205:c41fc65bcfb4	1571	/* Check whether the set of advanced features to configure is properly set */
mbed_official	205:c41fc65bcfb4	1572	assert_param(IS_UART_ADVFEATURE_INIT(huart->AdvancedInit.AdvFeatureInit));
mbed_official	205:c41fc65bcfb4	1573
mbed_official	205:c41fc65bcfb4	1574	/* if required, configure TX pin active level inversion */
mbed_official	205:c41fc65bcfb4	1575	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_TXINVERT_INIT))
mbed_official	205:c41fc65bcfb4	1576	{
mbed_official	205:c41fc65bcfb4	1577	assert_param(IS_UART_ADVFEATURE_TXINV(huart->AdvancedInit.TxPinLevelInvert));
mbed_official	205:c41fc65bcfb4	1578	MODIFY_REG(huart->Instance->CR2, USART_CR2_TXINV, huart->AdvancedInit.TxPinLevelInvert);
mbed_official	205:c41fc65bcfb4	1579	}
mbed_official	205:c41fc65bcfb4	1580
mbed_official	205:c41fc65bcfb4	1581	/* if required, configure RX pin active level inversion */
mbed_official	205:c41fc65bcfb4	1582	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXINVERT_INIT))
mbed_official	205:c41fc65bcfb4	1583	{
mbed_official	205:c41fc65bcfb4	1584	assert_param(IS_UART_ADVFEATURE_RXINV(huart->AdvancedInit.RxPinLevelInvert));
mbed_official	205:c41fc65bcfb4	1585	MODIFY_REG(huart->Instance->CR2, USART_CR2_RXINV, huart->AdvancedInit.RxPinLevelInvert);
mbed_official	205:c41fc65bcfb4	1586	}
mbed_official	205:c41fc65bcfb4	1587
mbed_official	205:c41fc65bcfb4	1588	/* if required, configure data inversion */
mbed_official	205:c41fc65bcfb4	1589	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DATAINVERT_INIT))
mbed_official	205:c41fc65bcfb4	1590	{
mbed_official	205:c41fc65bcfb4	1591	assert_param(IS_UART_ADVFEATURE_DATAINV(huart->AdvancedInit.DataInvert));
mbed_official	205:c41fc65bcfb4	1592	MODIFY_REG(huart->Instance->CR2, USART_CR2_DATAINV, huart->AdvancedInit.DataInvert);
mbed_official	205:c41fc65bcfb4	1593	}
mbed_official	205:c41fc65bcfb4	1594
mbed_official	205:c41fc65bcfb4	1595	/* if required, configure RX/TX pins swap */
mbed_official	205:c41fc65bcfb4	1596	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_SWAP_INIT))
mbed_official	205:c41fc65bcfb4	1597	{
mbed_official	205:c41fc65bcfb4	1598	assert_param(IS_UART_ADVFEATURE_SWAP(huart->AdvancedInit.Swap));
mbed_official	205:c41fc65bcfb4	1599	MODIFY_REG(huart->Instance->CR2, USART_CR2_SWAP, huart->AdvancedInit.Swap);
mbed_official	205:c41fc65bcfb4	1600	}
mbed_official	205:c41fc65bcfb4	1601
mbed_official	205:c41fc65bcfb4	1602	/* if required, configure RX overrun detection disabling */
mbed_official	205:c41fc65bcfb4	1603	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXOVERRUNDISABLE_INIT))
mbed_official	205:c41fc65bcfb4	1604	{
mbed_official	205:c41fc65bcfb4	1605	assert_param(IS_UART_OVERRUN(huart->AdvancedInit.OverrunDisable));
mbed_official	205:c41fc65bcfb4	1606	MODIFY_REG(huart->Instance->CR3, USART_CR3_OVRDIS, huart->AdvancedInit.OverrunDisable);
mbed_official	205:c41fc65bcfb4	1607	}
mbed_official	205:c41fc65bcfb4	1608
mbed_official	205:c41fc65bcfb4	1609	/* if required, configure DMA disabling on reception error */
mbed_official	205:c41fc65bcfb4	1610	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DMADISABLEONERROR_INIT))
mbed_official	205:c41fc65bcfb4	1611	{
mbed_official	205:c41fc65bcfb4	1612	assert_param(IS_UART_ADVFEATURE_DMAONRXERROR(huart->AdvancedInit.DMADisableonRxError));
mbed_official	205:c41fc65bcfb4	1613	MODIFY_REG(huart->Instance->CR3, USART_CR3_DDRE, huart->AdvancedInit.DMADisableonRxError);
mbed_official	205:c41fc65bcfb4	1614	}
mbed_official	205:c41fc65bcfb4	1615
mbed_official	205:c41fc65bcfb4	1616	/* if required, configure auto Baud rate detection scheme */
mbed_official	205:c41fc65bcfb4	1617	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_AUTOBAUDRATE_INIT))
mbed_official	205:c41fc65bcfb4	1618	{
mbed_official	205:c41fc65bcfb4	1619	assert_param(IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(huart->Instance));
mbed_official	205:c41fc65bcfb4	1620	assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATE(huart->AdvancedInit.AutoBaudRateEnable));
mbed_official	205:c41fc65bcfb4	1621	MODIFY_REG(huart->Instance->CR2, USART_CR2_ABREN, huart->AdvancedInit.AutoBaudRateEnable);
mbed_official	205:c41fc65bcfb4	1622	/* set auto Baudrate detection parameters if detection is enabled */
mbed_official	205:c41fc65bcfb4	1623	if (huart->AdvancedInit.AutoBaudRateEnable == UART_ADVFEATURE_AUTOBAUDRATE_ENABLE)
mbed_official	205:c41fc65bcfb4	1624	{
mbed_official	205:c41fc65bcfb4	1625	assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATEMODE(huart->AdvancedInit.AutoBaudRateMode));
mbed_official	205:c41fc65bcfb4	1626	MODIFY_REG(huart->Instance->CR2, USART_CR2_ABRMODE, huart->AdvancedInit.AutoBaudRateMode);
mbed_official	205:c41fc65bcfb4	1627	}
mbed_official	205:c41fc65bcfb4	1628	}
mbed_official	205:c41fc65bcfb4	1629
mbed_official	205:c41fc65bcfb4	1630	/* if required, configure MSB first on communication line */
mbed_official	205:c41fc65bcfb4	1631	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_MSBFIRST_INIT))
mbed_official	205:c41fc65bcfb4	1632	{
mbed_official	205:c41fc65bcfb4	1633	assert_param(IS_UART_ADVFEATURE_MSBFIRST(huart->AdvancedInit.MSBFirst));
mbed_official	205:c41fc65bcfb4	1634	MODIFY_REG(huart->Instance->CR2, USART_CR2_MSBFIRST, huart->AdvancedInit.MSBFirst);
mbed_official	205:c41fc65bcfb4	1635	}
mbed_official	205:c41fc65bcfb4	1636	}
mbed_official	205:c41fc65bcfb4	1637
mbed_official	205:c41fc65bcfb4	1638
mbed_official	205:c41fc65bcfb4	1639
mbed_official	205:c41fc65bcfb4	1640	/**
mbed_official	205:c41fc65bcfb4	1641	* @brief Check the UART Idle State
mbed_official	205:c41fc65bcfb4	1642	* @param huart: uart handle
mbed_official	205:c41fc65bcfb4	1643	* @retval HAL status
mbed_official	205:c41fc65bcfb4	1644	*/
mbed_official	205:c41fc65bcfb4	1645	HAL_StatusTypeDef UART_CheckIdleState(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1646	{
mbed_official	205:c41fc65bcfb4	1647	/* Initialize the UART ErrorCode */
mbed_official	205:c41fc65bcfb4	1648	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	205:c41fc65bcfb4	1649
mbed_official	205:c41fc65bcfb4	1650	/* Check if the Transmitter is enabled */
mbed_official	205:c41fc65bcfb4	1651	if((huart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
mbed_official	205:c41fc65bcfb4	1652	{
mbed_official	205:c41fc65bcfb4	1653	/* Wait until TEACK flag is set */
mbed_official	205:c41fc65bcfb4	1654	if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_TEACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official	205:c41fc65bcfb4	1655	{
mbed_official	205:c41fc65bcfb4	1656	/* Timeout Occured */
mbed_official	205:c41fc65bcfb4	1657	return HAL_TIMEOUT;
mbed_official	205:c41fc65bcfb4	1658	}
mbed_official	205:c41fc65bcfb4	1659	}
mbed_official	205:c41fc65bcfb4	1660	/* Check if the Receiver is enabled */
mbed_official	205:c41fc65bcfb4	1661	if((huart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
mbed_official	205:c41fc65bcfb4	1662	{
mbed_official	205:c41fc65bcfb4	1663	/* Wait until REACK flag is set */
mbed_official	205:c41fc65bcfb4	1664	if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official	205:c41fc65bcfb4	1665	{
mbed_official	205:c41fc65bcfb4	1666	/* Timeout Occured */
mbed_official	205:c41fc65bcfb4	1667	return HAL_TIMEOUT;
mbed_official	205:c41fc65bcfb4	1668	}
mbed_official	205:c41fc65bcfb4	1669	}
mbed_official	205:c41fc65bcfb4	1670
mbed_official	205:c41fc65bcfb4	1671	/* Initialize the UART State */
mbed_official	205:c41fc65bcfb4	1672	huart->State= HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1673
mbed_official	205:c41fc65bcfb4	1674	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	1675	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	1676
mbed_official	205:c41fc65bcfb4	1677	return HAL_OK;
mbed_official	205:c41fc65bcfb4	1678	}
mbed_official	205:c41fc65bcfb4	1679
mbed_official	205:c41fc65bcfb4	1680
mbed_official	205:c41fc65bcfb4	1681
mbed_official	205:c41fc65bcfb4	1682
mbed_official	205:c41fc65bcfb4	1683
mbed_official	205:c41fc65bcfb4	1684
mbed_official	205:c41fc65bcfb4	1685	/**
mbed_official	205:c41fc65bcfb4	1686	* @brief Enables the UART transmitter and disables the UART receiver.
mbed_official	205:c41fc65bcfb4	1687	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	1688	* @retval HAL status
mbed_official	205:c41fc65bcfb4	1689	* @retval None
mbed_official	205:c41fc65bcfb4	1690	*/
mbed_official	205:c41fc65bcfb4	1691	HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1692	{
mbed_official	205:c41fc65bcfb4	1693	/* Process Locked */
mbed_official	205:c41fc65bcfb4	1694	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	1695	huart->State = HAL_UART_STATE_BUSY;
mbed_official	205:c41fc65bcfb4	1696
mbed_official	205:c41fc65bcfb4	1697	/* Clear TE and RE bits */
mbed_official	205:c41fc65bcfb4	1698	CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE \| USART_CR1_RE));
mbed_official	205:c41fc65bcfb4	1699	/* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
mbed_official	205:c41fc65bcfb4	1700	SET_BIT(huart->Instance->CR1, USART_CR1_TE);
mbed_official	205:c41fc65bcfb4	1701
mbed_official	205:c41fc65bcfb4	1702	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1703	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	1704	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	1705
mbed_official	205:c41fc65bcfb4	1706	return HAL_OK;
mbed_official	205:c41fc65bcfb4	1707	}
mbed_official	205:c41fc65bcfb4	1708
mbed_official	205:c41fc65bcfb4	1709	/**
mbed_official	205:c41fc65bcfb4	1710	* @brief Enables the UART receiver and disables the UART transmitter.
mbed_official	205:c41fc65bcfb4	1711	* @param huart: UART handle
mbed_official	205:c41fc65bcfb4	1712	* @retval HAL status
mbed_official	205:c41fc65bcfb4	1713	*/
mbed_official	205:c41fc65bcfb4	1714	HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
mbed_official	205:c41fc65bcfb4	1715	{
mbed_official	205:c41fc65bcfb4	1716	/* Process Locked */
mbed_official	205:c41fc65bcfb4	1717	__HAL_LOCK(huart);
mbed_official	205:c41fc65bcfb4	1718	huart->State = HAL_UART_STATE_BUSY;
mbed_official	205:c41fc65bcfb4	1719
mbed_official	205:c41fc65bcfb4	1720	/* Clear TE and RE bits */
mbed_official	205:c41fc65bcfb4	1721	CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE \| USART_CR1_RE));
mbed_official	205:c41fc65bcfb4	1722	/* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
mbed_official	205:c41fc65bcfb4	1723	SET_BIT(huart->Instance->CR1, USART_CR1_RE);
mbed_official	205:c41fc65bcfb4	1724
mbed_official	205:c41fc65bcfb4	1725	huart->State = HAL_UART_STATE_READY;
mbed_official	205:c41fc65bcfb4	1726	/* Process Unlocked */
mbed_official	205:c41fc65bcfb4	1727	__HAL_UNLOCK(huart);
mbed_official	205:c41fc65bcfb4	1728
mbed_official	205:c41fc65bcfb4	1729	return HAL_OK;
mbed_official	205:c41fc65bcfb4	1730	}
mbed_official	205:c41fc65bcfb4	1731
mbed_official	205:c41fc65bcfb4	1732
mbed_official	205:c41fc65bcfb4	1733	/**
mbed_official	205:c41fc65bcfb4	1734	* @}
mbed_official	205:c41fc65bcfb4	1735	*/
mbed_official	205:c41fc65bcfb4	1736
mbed_official	205:c41fc65bcfb4	1737	/**
mbed_official	205:c41fc65bcfb4	1738	* @}
mbed_official	205:c41fc65bcfb4	1739	*/
mbed_official	205:c41fc65bcfb4	1740
mbed_official	205:c41fc65bcfb4	1741	#endif /* HAL_UART_MODULE_ENABLED */
mbed_official	205:c41fc65bcfb4	1742	/**
mbed_official	205:c41fc65bcfb4	1743	* @}
mbed_official	205:c41fc65bcfb4	1744	*/
mbed_official	205:c41fc65bcfb4	1745
mbed_official	205:c41fc65bcfb4	1746	/**
mbed_official	205:c41fc65bcfb4	1747	* @}
mbed_official	205:c41fc65bcfb4	1748	*/
mbed_official	205:c41fc65bcfb4	1749
mbed_official	205:c41fc65bcfb4	1750	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Library
Created:	13 Sep 2014
Imports:	4
Forks:	0
Commits:	324
Dependents:	1
Dependencies:	0
Followers:	2

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F072RB/stm32f0xx_hal_uart.c@205:c41fc65bcfb4, 2014-05-22 (annotated)

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