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targets/cmsis/TARGET_STM/TARGET_DISCO_F334C8/stm32f3xx_hal_uart.c@381:5460fc57b6e4, 2014-11-03 (annotated)

Committer:: mbed_official
Date:: Mon Nov 03 10:30:07 2014 +0000
Revision:: 381:5460fc57b6e4

Synchronized with git revision 02478cd1f27fc7b9643486472635eb515b2bca81

Full URL: https://github.com/mbedmicro/mbed/commit/02478cd1f27fc7b9643486472635eb515b2bca81/

Target: LPC1549 - Fix serial interrupt issues (issue report #616)

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed_official	381:5460fc57b6e4	1	/**
mbed_official	381:5460fc57b6e4	2	******************************************************************************
mbed_official	381:5460fc57b6e4	3	* @file stm32f3xx_hal_uart.c
mbed_official	381:5460fc57b6e4	4	* @author MCD Application Team
mbed_official	381:5460fc57b6e4	5	* @version V1.1.0
mbed_official	381:5460fc57b6e4	6	* @date 12-Sept-2014
mbed_official	381:5460fc57b6e4	7	* @brief UART HAL module driver.
mbed_official	381:5460fc57b6e4	8	*
mbed_official	381:5460fc57b6e4	9	* This file provides firmware functions to manage the following
mbed_official	381:5460fc57b6e4	10	* functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART).
mbed_official	381:5460fc57b6e4	11	* + Initialization and de-initialization functions
mbed_official	381:5460fc57b6e4	12	* + IO operation functions
mbed_official	381:5460fc57b6e4	13	* + Peripheral Control functions
mbed_official	381:5460fc57b6e4	14	*
mbed_official	381:5460fc57b6e4	15	*
mbed_official	381:5460fc57b6e4	16	@verbatim
mbed_official	381:5460fc57b6e4	17	===============================================================================
mbed_official	381:5460fc57b6e4	18	##### How to use this driver #####
mbed_official	381:5460fc57b6e4	19	===============================================================================
mbed_official	381:5460fc57b6e4	20	[..]
mbed_official	381:5460fc57b6e4	21	The UART HAL driver can be used as follows:
mbed_official	381:5460fc57b6e4	22
mbed_official	381:5460fc57b6e4	23	(#) Declare a UART_HandleTypeDef handle structure.
mbed_official	381:5460fc57b6e4	24	(#) Initialize the UART low level resources by implementing the HAL_UART_MspInit ()API:
mbed_official	381:5460fc57b6e4	25	(##) Enable the USARTx interface clock.
mbed_official	381:5460fc57b6e4	26	(##) UART pins configuration:
mbed_official	381:5460fc57b6e4	27	(+) Enable the clock for the UART GPIOs.
mbed_official	381:5460fc57b6e4	28	(+) Configure these UART pins as alternate function pull-up.
mbed_official	381:5460fc57b6e4	29	(##) NVIC configuration if you need to use interrupt process (HAL_UART_Transmit_IT()
mbed_official	381:5460fc57b6e4	30	and HAL_UART_Receive_IT() APIs):
mbed_official	381:5460fc57b6e4	31	(+) Configure the USARTx interrupt priority.
mbed_official	381:5460fc57b6e4	32	(+) Enable the NVIC USART IRQ handle.
mbed_official	381:5460fc57b6e4	33	(@) The specific UART interrupts (Transmission complete interrupt,
mbed_official	381:5460fc57b6e4	34	RXNE interrupt and Error Interrupts) will be managed using the macros
mbed_official	381:5460fc57b6e4	35	__HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the transmit and receive process.
mbed_official	381:5460fc57b6e4	36	(##) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA()
mbed_official	381:5460fc57b6e4	37	and HAL_UART_Receive_DMA() APIs):
mbed_official	381:5460fc57b6e4	38	(+) Declare a DMA handle structure for the Tx/Rx channel.
mbed_official	381:5460fc57b6e4	39	(+) Enable the DMAx interface clock.
mbed_official	381:5460fc57b6e4	40	(+) Configure the declared DMA handle structure with the required Tx/Rx parameters.
mbed_official	381:5460fc57b6e4	41	(+) Configure the DMA Tx/Rx channel.
mbed_official	381:5460fc57b6e4	42	(+) Associate the initilalized DMA handle to the UART DMA Tx/Rx handle.
mbed_official	381:5460fc57b6e4	43	(+) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx channel.
mbed_official	381:5460fc57b6e4	44
mbed_official	381:5460fc57b6e4	45	(#) Program the Baud Rate, Word Length , Stop Bit, Parity, Hardware
mbed_official	381:5460fc57b6e4	46	flow control and Mode(Receiver/Transmitter) in the huart Init structure.
mbed_official	381:5460fc57b6e4	47
mbed_official	381:5460fc57b6e4	48	(#) If required, program UART advanced features (TX/RX pins swap, auto Baud rate detection,...)
mbed_official	381:5460fc57b6e4	49	in the huart AdvancedInit structure.
mbed_official	381:5460fc57b6e4	50
mbed_official	381:5460fc57b6e4	51	(#) For the UART asynchronous mode, initialize the UART registers by calling
mbed_official	381:5460fc57b6e4	52	the HAL_UART_Init() API.
mbed_official	381:5460fc57b6e4	53
mbed_official	381:5460fc57b6e4	54	(#) For the UART Half duplex mode, initialize the UART registers by calling
mbed_official	381:5460fc57b6e4	55	the HAL_HalfDuplex_Init() API.
mbed_official	381:5460fc57b6e4	56
mbed_official	381:5460fc57b6e4	57	(#) For the UART LIN (Local Interconnection Network) mode, initialize the UART registers
mbed_official	381:5460fc57b6e4	58	by calling the HAL_LIN_Init() API.
mbed_official	381:5460fc57b6e4	59
mbed_official	381:5460fc57b6e4	60	(#) For the UART Multiprocessor mode, initialize the UART registers
mbed_official	381:5460fc57b6e4	61	by calling the HAL_MultiProcessor_Init() API.
mbed_official	381:5460fc57b6e4	62
mbed_official	381:5460fc57b6e4	63	(#) For the UART RS485 Driver Enabled mode, initialize the UART registers
mbed_official	381:5460fc57b6e4	64	by calling the HAL_RS485Ex_Init() API.
mbed_official	381:5460fc57b6e4	65
mbed_official	381:5460fc57b6e4	66	(@) These API's(HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init(), HAL_MultiProcessor_Init(),
mbed_official	381:5460fc57b6e4	67	also configure also the low level Hardware GPIO, CLOCK, CORTEX...etc) by
mbed_official	381:5460fc57b6e4	68	calling the customized HAL_UART_MspInit() API.
mbed_official	381:5460fc57b6e4	69
mbed_official	381:5460fc57b6e4	70	@endverbatim
mbed_official	381:5460fc57b6e4	71	******************************************************************************
mbed_official	381:5460fc57b6e4	72	* @attention
mbed_official	381:5460fc57b6e4	73	*
mbed_official	381:5460fc57b6e4	74	* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official	381:5460fc57b6e4	75	*
mbed_official	381:5460fc57b6e4	76	* Redistribution and use in source and binary forms, with or without modification,
mbed_official	381:5460fc57b6e4	77	* are permitted provided that the following conditions are met:
mbed_official	381:5460fc57b6e4	78	* 1. Redistributions of source code must retain the above copyright notice,
mbed_official	381:5460fc57b6e4	79	* this list of conditions and the following disclaimer.
mbed_official	381:5460fc57b6e4	80	* 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official	381:5460fc57b6e4	81	* this list of conditions and the following disclaimer in the documentation
mbed_official	381:5460fc57b6e4	82	* and/or other materials provided with the distribution.
mbed_official	381:5460fc57b6e4	83	* 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official	381:5460fc57b6e4	84	* may be used to endorse or promote products derived from this software
mbed_official	381:5460fc57b6e4	85	* without specific prior written permission.
mbed_official	381:5460fc57b6e4	86	*
mbed_official	381:5460fc57b6e4	87	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official	381:5460fc57b6e4	88	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official	381:5460fc57b6e4	89	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official	381:5460fc57b6e4	90	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official	381:5460fc57b6e4	91	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official	381:5460fc57b6e4	92	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official	381:5460fc57b6e4	93	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official	381:5460fc57b6e4	94	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official	381:5460fc57b6e4	95	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official	381:5460fc57b6e4	96	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official	381:5460fc57b6e4	97	*
mbed_official	381:5460fc57b6e4	98	******************************************************************************
mbed_official	381:5460fc57b6e4	99	*/
mbed_official	381:5460fc57b6e4	100
mbed_official	381:5460fc57b6e4	101	/* Includes ------------------------------------------------------------------*/
mbed_official	381:5460fc57b6e4	102	#include "stm32f3xx_hal.h"
mbed_official	381:5460fc57b6e4	103
mbed_official	381:5460fc57b6e4	104	/** @addtogroup STM32F3xx_HAL_Driver
mbed_official	381:5460fc57b6e4	105	* @{
mbed_official	381:5460fc57b6e4	106	*/
mbed_official	381:5460fc57b6e4	107
mbed_official	381:5460fc57b6e4	108	/** @defgroup UART UART HAL module driver
mbed_official	381:5460fc57b6e4	109	* @brief UART HAL module driver
mbed_official	381:5460fc57b6e4	110	* @{
mbed_official	381:5460fc57b6e4	111	*/
mbed_official	381:5460fc57b6e4	112	#ifdef HAL_UART_MODULE_ENABLED
mbed_official	381:5460fc57b6e4	113
mbed_official	381:5460fc57b6e4	114	/* Private typedef -----------------------------------------------------------*/
mbed_official	381:5460fc57b6e4	115	/* Private define ------------------------------------------------------------*/
mbed_official	381:5460fc57b6e4	116	/** @defgroup UART_Private_Constants UART Private Constants
mbed_official	381:5460fc57b6e4	117	* @{
mbed_official	381:5460fc57b6e4	118	*/
mbed_official	381:5460fc57b6e4	119	#define HAL_UART_TXDMA_TIMEOUTVALUE 22000
mbed_official	381:5460fc57b6e4	120	#define UART_CR1_FIELDS ((uint32_t)(USART_CR1_M \| USART_CR1_PCE \| USART_CR1_PS \| \
mbed_official	381:5460fc57b6e4	121	USART_CR1_TE \| USART_CR1_RE \| USART_CR1_OVER8))
mbed_official	381:5460fc57b6e4	122	/**
mbed_official	381:5460fc57b6e4	123	* @}
mbed_official	381:5460fc57b6e4	124	*/
mbed_official	381:5460fc57b6e4	125
mbed_official	381:5460fc57b6e4	126	/* Private macro -------------------------------------------------------------*/
mbed_official	381:5460fc57b6e4	127	/* Private variables ---------------------------------------------------------*/
mbed_official	381:5460fc57b6e4	128	/* Private function prototypes -----------------------------------------------*/
mbed_official	381:5460fc57b6e4	129	static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
mbed_official	381:5460fc57b6e4	130	static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
mbed_official	381:5460fc57b6e4	131	static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official	381:5460fc57b6e4	132	static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
mbed_official	381:5460fc57b6e4	133	static void UART_DMAError(DMA_HandleTypeDef *hdma);
mbed_official	381:5460fc57b6e4	134	static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart);
mbed_official	381:5460fc57b6e4	135	static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart);
mbed_official	381:5460fc57b6e4	136	static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart);
mbed_official	381:5460fc57b6e4	137	/* Exported functions ---------------------------------------------------------*/
mbed_official	381:5460fc57b6e4	138
mbed_official	381:5460fc57b6e4	139	/** @defgroup UART_Exported_Functions UART Exported Functions
mbed_official	381:5460fc57b6e4	140	* @{
mbed_official	381:5460fc57b6e4	141	*/
mbed_official	381:5460fc57b6e4	142
mbed_official	381:5460fc57b6e4	143	/** @defgroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
mbed_official	381:5460fc57b6e4	144	* @brief Initialization and Configuration functions
mbed_official	381:5460fc57b6e4	145	*
mbed_official	381:5460fc57b6e4	146	@verbatim
mbed_official	381:5460fc57b6e4	147	===============================================================================
mbed_official	381:5460fc57b6e4	148	##### Initialization and Configuration functions #####
mbed_official	381:5460fc57b6e4	149	===============================================================================
mbed_official	381:5460fc57b6e4	150	[..]
mbed_official	381:5460fc57b6e4	151	This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
mbed_official	381:5460fc57b6e4	152	in asynchronous mode.
mbed_official	381:5460fc57b6e4	153	(+) For the asynchronous mode the parameters below can be configured:
mbed_official	381:5460fc57b6e4	154	(++) Baud Rate
mbed_official	381:5460fc57b6e4	155	(++) Word Length
mbed_official	381:5460fc57b6e4	156	(++) Stop Bit
mbed_official	381:5460fc57b6e4	157	(++) Parity: If the parity is enabled, then the MSB bit of the data written
mbed_official	381:5460fc57b6e4	158	in the data register is transmitted but is changed by the parity bit.
mbed_official	381:5460fc57b6e4	159	Depending on the frame length defined by the M bit (8-bits or 9-bits)
mbed_official	381:5460fc57b6e4	160	or by the M1 and M0 bits (7-bit, 8-bit or 9-bit),
mbed_official	381:5460fc57b6e4	161	the possible UART frame formats are as listed in the following table:
mbed_official	381:5460fc57b6e4	162	+---------------------------------------------------------------+
mbed_official	381:5460fc57b6e4	163	\| M bit \| PCE bit \| UART frame \|
mbed_official	381:5460fc57b6e4	164	\|-----------\|-----------\|---------------------------------------\|
mbed_official	381:5460fc57b6e4	165	\| 0 \| 0 \| \| SB \| 8-bit data \| STB \| \|
mbed_official	381:5460fc57b6e4	166	\|-----------\|-----------\|---------------------------------------\|
mbed_official	381:5460fc57b6e4	167	\| 0 \| 1 \| \| SB \| 7-bit data \| PB \| STB \| \|
mbed_official	381:5460fc57b6e4	168	\|-----------\|-----------\|---------------------------------------\|
mbed_official	381:5460fc57b6e4	169	\| 1 \| 0 \| \| SB \| 9-bit data \| STB \| \|
mbed_official	381:5460fc57b6e4	170	\|-----------\|-----------\|---------------------------------------\|
mbed_official	381:5460fc57b6e4	171	\| 1 \| 1 \| \| SB \| 8-bit data \| PB \| STB \| \|
mbed_official	381:5460fc57b6e4	172	+---------------------------------------------------------------+
mbed_official	381:5460fc57b6e4	173	\| M1M0 bits \| PCE bit \| UART frame \|
mbed_official	381:5460fc57b6e4	174	\|-----------------------\|---------------------------------------\|
mbed_official	381:5460fc57b6e4	175	\| 10 \| 0 \| \| SB \| 7-bit data \| STB \| \|
mbed_official	381:5460fc57b6e4	176	\|-----------\|-----------\|---------------------------------------\|
mbed_official	381:5460fc57b6e4	177	\| 10 \| 1 \| \| SB \| 6-bit data \| PB \| STB \| \|
mbed_official	381:5460fc57b6e4	178	+---------------------------------------------------------------+
mbed_official	381:5460fc57b6e4	179	(++) Hardware flow control
mbed_official	381:5460fc57b6e4	180	(++) Receiver/transmitter modes
mbed_official	381:5460fc57b6e4	181	(++) Over Sampling Method
mbed_official	381:5460fc57b6e4	182	(++) One-Bit Sampling Method
mbed_official	381:5460fc57b6e4	183	(+) For the asynchronous mode, the following advanced features can be configured as well:
mbed_official	381:5460fc57b6e4	184	(++) TX and/or RX pin level inversion
mbed_official	381:5460fc57b6e4	185	(++) data logical level inversion
mbed_official	381:5460fc57b6e4	186	(++) RX and TX pins swap
mbed_official	381:5460fc57b6e4	187	(++) RX overrun detection disabling
mbed_official	381:5460fc57b6e4	188	(++) DMA disabling on RX error
mbed_official	381:5460fc57b6e4	189	(++) MSB first on communication line
mbed_official	381:5460fc57b6e4	190	(++) auto Baud rate detection
mbed_official	381:5460fc57b6e4	191	[..]
mbed_official	381:5460fc57b6e4	192	The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init() and HAL_MultiProcessor_Init()
mbed_official	381:5460fc57b6e4	193	API follow respectively the UART asynchronous, UART Half duplex, UART LIN mode and
mbed_official	381:5460fc57b6e4	194	multiprocessor configuration procedures (details for the procedures are available in reference manual).
mbed_official	381:5460fc57b6e4	195
mbed_official	381:5460fc57b6e4	196	@endverbatim
mbed_official	381:5460fc57b6e4	197	* @{
mbed_official	381:5460fc57b6e4	198	*/
mbed_official	381:5460fc57b6e4	199
mbed_official	381:5460fc57b6e4	200	/**
mbed_official	381:5460fc57b6e4	201	* @brief Initializes the UART mode according to the specified
mbed_official	381:5460fc57b6e4	202	* parameters in the UART_InitTypeDef and creates the associated handle .
mbed_official	381:5460fc57b6e4	203	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	204	* @retval HAL status
mbed_official	381:5460fc57b6e4	205	*/
mbed_official	381:5460fc57b6e4	206	HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	207	{
mbed_official	381:5460fc57b6e4	208	/* Check the UART handle allocation */
mbed_official	381:5460fc57b6e4	209	if(huart == HAL_NULL)
mbed_official	381:5460fc57b6e4	210	{
mbed_official	381:5460fc57b6e4	211	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	212	}
mbed_official	381:5460fc57b6e4	213
mbed_official	381:5460fc57b6e4	214	if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
mbed_official	381:5460fc57b6e4	215	{
mbed_official	381:5460fc57b6e4	216	/* Check the parameters */
mbed_official	381:5460fc57b6e4	217	assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
mbed_official	381:5460fc57b6e4	218	}
mbed_official	381:5460fc57b6e4	219	else
mbed_official	381:5460fc57b6e4	220	{
mbed_official	381:5460fc57b6e4	221	/* Check the parameters */
mbed_official	381:5460fc57b6e4	222	assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official	381:5460fc57b6e4	223	}
mbed_official	381:5460fc57b6e4	224
mbed_official	381:5460fc57b6e4	225	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	381:5460fc57b6e4	226	{
mbed_official	381:5460fc57b6e4	227	/* Init the low level hardware : GPIO, CLOCK */
mbed_official	381:5460fc57b6e4	228	HAL_UART_MspInit(huart);
mbed_official	381:5460fc57b6e4	229	}
mbed_official	381:5460fc57b6e4	230
mbed_official	381:5460fc57b6e4	231	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	232
mbed_official	381:5460fc57b6e4	233	/* Disable the Peripheral */
mbed_official	381:5460fc57b6e4	234	__HAL_UART_DISABLE(huart);
mbed_official	381:5460fc57b6e4	235
mbed_official	381:5460fc57b6e4	236	/* Set the UART Communication parameters */
mbed_official	381:5460fc57b6e4	237	if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official	381:5460fc57b6e4	238	{
mbed_official	381:5460fc57b6e4	239	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	240	}
mbed_official	381:5460fc57b6e4	241
mbed_official	381:5460fc57b6e4	242	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	381:5460fc57b6e4	243	{
mbed_official	381:5460fc57b6e4	244	UART_AdvFeatureConfig(huart);
mbed_official	381:5460fc57b6e4	245	}
mbed_official	381:5460fc57b6e4	246
mbed_official	381:5460fc57b6e4	247	/* In asynchronous mode, the following bits must be kept cleared:
mbed_official	381:5460fc57b6e4	248	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	381:5460fc57b6e4	249	- SCEN, HDSEL and IREN bits in the USART_CR3 register.*/
mbed_official	381:5460fc57b6e4	250	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
mbed_official	381:5460fc57b6e4	251	huart->Instance->CR3 &= ~(USART_CR3_SCEN \| USART_CR3_HDSEL \| USART_CR3_IREN);
mbed_official	381:5460fc57b6e4	252
mbed_official	381:5460fc57b6e4	253	/* Enable the Peripheral */
mbed_official	381:5460fc57b6e4	254	__HAL_UART_ENABLE(huart);
mbed_official	381:5460fc57b6e4	255
mbed_official	381:5460fc57b6e4	256	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	381:5460fc57b6e4	257	return (UART_CheckIdleState(huart));
mbed_official	381:5460fc57b6e4	258	}
mbed_official	381:5460fc57b6e4	259
mbed_official	381:5460fc57b6e4	260	/**
mbed_official	381:5460fc57b6e4	261	* @brief Initializes the half-duplex mode according to the specified
mbed_official	381:5460fc57b6e4	262	* parameters in the UART_InitTypeDef and creates the associated handle .
mbed_official	381:5460fc57b6e4	263	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	264	* @retval HAL status
mbed_official	381:5460fc57b6e4	265	*/
mbed_official	381:5460fc57b6e4	266	HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	267	{
mbed_official	381:5460fc57b6e4	268	/* Check the UART handle allocation */
mbed_official	381:5460fc57b6e4	269	if(huart == HAL_NULL)
mbed_official	381:5460fc57b6e4	270	{
mbed_official	381:5460fc57b6e4	271	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	272	}
mbed_official	381:5460fc57b6e4	273
mbed_official	381:5460fc57b6e4	274	/* Check UART instance */
mbed_official	381:5460fc57b6e4	275	assert_param(IS_UART_HALFDUPLEX_INSTANCE(huart->Instance));
mbed_official	381:5460fc57b6e4	276
mbed_official	381:5460fc57b6e4	277	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	381:5460fc57b6e4	278	{
mbed_official	381:5460fc57b6e4	279	/* Init the low level hardware : GPIO, CLOCK */
mbed_official	381:5460fc57b6e4	280	HAL_UART_MspInit(huart);
mbed_official	381:5460fc57b6e4	281	}
mbed_official	381:5460fc57b6e4	282
mbed_official	381:5460fc57b6e4	283	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	284
mbed_official	381:5460fc57b6e4	285	/* Disable the Peripheral */
mbed_official	381:5460fc57b6e4	286	__HAL_UART_DISABLE(huart);
mbed_official	381:5460fc57b6e4	287
mbed_official	381:5460fc57b6e4	288	/* Set the UART Communication parameters */
mbed_official	381:5460fc57b6e4	289	if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official	381:5460fc57b6e4	290	{
mbed_official	381:5460fc57b6e4	291	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	292	}
mbed_official	381:5460fc57b6e4	293
mbed_official	381:5460fc57b6e4	294	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	381:5460fc57b6e4	295	{
mbed_official	381:5460fc57b6e4	296	UART_AdvFeatureConfig(huart);
mbed_official	381:5460fc57b6e4	297	}
mbed_official	381:5460fc57b6e4	298
mbed_official	381:5460fc57b6e4	299	/* In half-duplex mode, the following bits must be kept cleared:
mbed_official	381:5460fc57b6e4	300	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	381:5460fc57b6e4	301	- SCEN and IREN bits in the USART_CR3 register.*/
mbed_official	381:5460fc57b6e4	302	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
mbed_official	381:5460fc57b6e4	303	huart->Instance->CR3 &= ~(USART_CR3_IREN \| USART_CR3_SCEN);
mbed_official	381:5460fc57b6e4	304
mbed_official	381:5460fc57b6e4	305	/* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */
mbed_official	381:5460fc57b6e4	306	huart->Instance->CR3 \|= USART_CR3_HDSEL;
mbed_official	381:5460fc57b6e4	307
mbed_official	381:5460fc57b6e4	308	/* Enable the Peripheral */
mbed_official	381:5460fc57b6e4	309	__HAL_UART_ENABLE(huart);
mbed_official	381:5460fc57b6e4	310
mbed_official	381:5460fc57b6e4	311	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	381:5460fc57b6e4	312	return (UART_CheckIdleState(huart));
mbed_official	381:5460fc57b6e4	313	}
mbed_official	381:5460fc57b6e4	314
mbed_official	381:5460fc57b6e4	315
mbed_official	381:5460fc57b6e4	316	/**
mbed_official	381:5460fc57b6e4	317	* @brief Initializes the LIN mode according to the specified
mbed_official	381:5460fc57b6e4	318	* parameters in the UART_InitTypeDef and creates the associated handle .
mbed_official	381:5460fc57b6e4	319	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	320	* @param BreakDetectLength: specifies the LIN break detection length.
mbed_official	381:5460fc57b6e4	321	* This parameter can be one of the following values:
mbed_official	381:5460fc57b6e4	322	* @arg UART_LINBREAKDETECTLENGTH_10B: 10-bit break detection
mbed_official	381:5460fc57b6e4	323	* @arg UART_LINBREAKDETECTLENGTH_11B: 11-bit break detection
mbed_official	381:5460fc57b6e4	324	* @retval HAL status
mbed_official	381:5460fc57b6e4	325	*/
mbed_official	381:5460fc57b6e4	326	HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength)
mbed_official	381:5460fc57b6e4	327	{
mbed_official	381:5460fc57b6e4	328	/* Check the UART handle allocation */
mbed_official	381:5460fc57b6e4	329	if(huart == HAL_NULL)
mbed_official	381:5460fc57b6e4	330	{
mbed_official	381:5460fc57b6e4	331	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	332	}
mbed_official	381:5460fc57b6e4	333
mbed_official	381:5460fc57b6e4	334	/* Check the LIN UART instance */
mbed_official	381:5460fc57b6e4	335	assert_param(IS_UART_LIN_INSTANCE(huart->Instance));
mbed_official	381:5460fc57b6e4	336	/* Check the Break detection length parameter */
mbed_official	381:5460fc57b6e4	337	assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength));
mbed_official	381:5460fc57b6e4	338
mbed_official	381:5460fc57b6e4	339	/* LIN mode limited to 16-bit oversampling only */
mbed_official	381:5460fc57b6e4	340	if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
mbed_official	381:5460fc57b6e4	341	{
mbed_official	381:5460fc57b6e4	342	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	343	}
mbed_official	381:5460fc57b6e4	344
mbed_official	381:5460fc57b6e4	345	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	381:5460fc57b6e4	346	{
mbed_official	381:5460fc57b6e4	347	/* Init the low level hardware : GPIO, CLOCK */
mbed_official	381:5460fc57b6e4	348	HAL_UART_MspInit(huart);
mbed_official	381:5460fc57b6e4	349	}
mbed_official	381:5460fc57b6e4	350
mbed_official	381:5460fc57b6e4	351	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	352
mbed_official	381:5460fc57b6e4	353	/* Disable the Peripheral */
mbed_official	381:5460fc57b6e4	354	__HAL_UART_DISABLE(huart);
mbed_official	381:5460fc57b6e4	355
mbed_official	381:5460fc57b6e4	356	/* Set the UART Communication parameters */
mbed_official	381:5460fc57b6e4	357	if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official	381:5460fc57b6e4	358	{
mbed_official	381:5460fc57b6e4	359	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	360	}
mbed_official	381:5460fc57b6e4	361
mbed_official	381:5460fc57b6e4	362	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	381:5460fc57b6e4	363	{
mbed_official	381:5460fc57b6e4	364	UART_AdvFeatureConfig(huart);
mbed_official	381:5460fc57b6e4	365	}
mbed_official	381:5460fc57b6e4	366
mbed_official	381:5460fc57b6e4	367	/* In LIN mode, the following bits must be kept cleared:
mbed_official	381:5460fc57b6e4	368	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	381:5460fc57b6e4	369	- SCEN and IREN bits in the USART_CR3 register.*/
mbed_official	381:5460fc57b6e4	370	huart->Instance->CR2 &= ~(USART_CR2_CLKEN);
mbed_official	381:5460fc57b6e4	371	huart->Instance->CR3 &= ~(USART_CR3_HDSEL \| USART_CR3_IREN \| USART_CR3_SCEN);
mbed_official	381:5460fc57b6e4	372
mbed_official	381:5460fc57b6e4	373	/* Enable the LIN mode by setting the LINEN bit in the CR2 register */
mbed_official	381:5460fc57b6e4	374	huart->Instance->CR2 \|= USART_CR2_LINEN;
mbed_official	381:5460fc57b6e4	375
mbed_official	381:5460fc57b6e4	376	/* Set the USART LIN Break detection length. */
mbed_official	381:5460fc57b6e4	377	MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength);
mbed_official	381:5460fc57b6e4	378
mbed_official	381:5460fc57b6e4	379	/* Enable the Peripheral */
mbed_official	381:5460fc57b6e4	380	__HAL_UART_ENABLE(huart);
mbed_official	381:5460fc57b6e4	381
mbed_official	381:5460fc57b6e4	382	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	381:5460fc57b6e4	383	return (UART_CheckIdleState(huart));
mbed_official	381:5460fc57b6e4	384	}
mbed_official	381:5460fc57b6e4	385
mbed_official	381:5460fc57b6e4	386
mbed_official	381:5460fc57b6e4	387
mbed_official	381:5460fc57b6e4	388	/**
mbed_official	381:5460fc57b6e4	389	* @brief Initializes the multiprocessor mode according to the specified
mbed_official	381:5460fc57b6e4	390	* parameters in the UART_InitTypeDef and creates the associated handle.
mbed_official	381:5460fc57b6e4	391	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	392	* @param Address: UART node address (4-, 6-, 7- or 8-bit long)
mbed_official	381:5460fc57b6e4	393	* @param WakeUpMethod: specifies the UART wakeup method.
mbed_official	381:5460fc57b6e4	394	* This parameter can be one of the following values:
mbed_official	381:5460fc57b6e4	395	* @arg UART_WAKEUPMETHOD_IDLELINE: WakeUp by an idle line detection
mbed_official	381:5460fc57b6e4	396	* @arg UART_WAKEUPMETHOD_ADDRESSMARK: WakeUp by an address mark
mbed_official	381:5460fc57b6e4	397	* @note If the user resorts to idle line detection wake up, the Address parameter
mbed_official	381:5460fc57b6e4	398	* is useless and ignored by the initialization function.
mbed_official	381:5460fc57b6e4	399	* @note If the user resorts to address mark wake up, the address length detection
mbed_official	381:5460fc57b6e4	400	* is configured by default to 4 bits only. For the UART to be able to
mbed_official	381:5460fc57b6e4	401	* manage 6-, 7- or 8-bit long addresses detection, the API
mbed_official	381:5460fc57b6e4	402	* HAL_MultiProcessorEx_AddressLength_Set() must be called after
mbed_official	381:5460fc57b6e4	403	* HAL_MultiProcessor_Init().
mbed_official	381:5460fc57b6e4	404	* @retval HAL status
mbed_official	381:5460fc57b6e4	405	*/
mbed_official	381:5460fc57b6e4	406	HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod)
mbed_official	381:5460fc57b6e4	407	{
mbed_official	381:5460fc57b6e4	408	/* Check the UART handle allocation */
mbed_official	381:5460fc57b6e4	409	if(huart == HAL_NULL)
mbed_official	381:5460fc57b6e4	410	{
mbed_official	381:5460fc57b6e4	411	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	412	}
mbed_official	381:5460fc57b6e4	413
mbed_official	381:5460fc57b6e4	414	/* Check the wake up method parameter */
mbed_official	381:5460fc57b6e4	415	assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
mbed_official	381:5460fc57b6e4	416
mbed_official	381:5460fc57b6e4	417	if(huart->State == HAL_UART_STATE_RESET)
mbed_official	381:5460fc57b6e4	418	{
mbed_official	381:5460fc57b6e4	419	/* Init the low level hardware : GPIO, CLOCK */
mbed_official	381:5460fc57b6e4	420	HAL_UART_MspInit(huart);
mbed_official	381:5460fc57b6e4	421	}
mbed_official	381:5460fc57b6e4	422
mbed_official	381:5460fc57b6e4	423	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	424
mbed_official	381:5460fc57b6e4	425	/* Disable the Peripheral */
mbed_official	381:5460fc57b6e4	426	__HAL_UART_DISABLE(huart);
mbed_official	381:5460fc57b6e4	427
mbed_official	381:5460fc57b6e4	428	/* Set the UART Communication parameters */
mbed_official	381:5460fc57b6e4	429	if (UART_SetConfig(huart) == HAL_ERROR)
mbed_official	381:5460fc57b6e4	430	{
mbed_official	381:5460fc57b6e4	431	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	432	}
mbed_official	381:5460fc57b6e4	433
mbed_official	381:5460fc57b6e4	434	if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
mbed_official	381:5460fc57b6e4	435	{
mbed_official	381:5460fc57b6e4	436	UART_AdvFeatureConfig(huart);
mbed_official	381:5460fc57b6e4	437	}
mbed_official	381:5460fc57b6e4	438
mbed_official	381:5460fc57b6e4	439	/* In multiprocessor mode, the following bits must be kept cleared:
mbed_official	381:5460fc57b6e4	440	- LINEN and CLKEN bits in the USART_CR2 register,
mbed_official	381:5460fc57b6e4	441	- SCEN, HDSEL and IREN bits in the USART_CR3 register. */
mbed_official	381:5460fc57b6e4	442	huart->Instance->CR2 &= ~(USART_CR2_LINEN \| USART_CR2_CLKEN);
mbed_official	381:5460fc57b6e4	443	huart->Instance->CR3 &= ~(USART_CR3_SCEN \| USART_CR3_HDSEL \| USART_CR3_IREN);
mbed_official	381:5460fc57b6e4	444
mbed_official	381:5460fc57b6e4	445	if (WakeUpMethod == UART_WAKEUPMETHOD_ADDRESSMARK)
mbed_official	381:5460fc57b6e4	446	{
mbed_official	381:5460fc57b6e4	447	/* If address mark wake up method is chosen, set the USART address node */
mbed_official	381:5460fc57b6e4	448	MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)Address << UART_CR2_ADDRESS_LSB_POS));
mbed_official	381:5460fc57b6e4	449	}
mbed_official	381:5460fc57b6e4	450
mbed_official	381:5460fc57b6e4	451	/* Set the wake up method by setting the WAKE bit in the CR1 register */
mbed_official	381:5460fc57b6e4	452	MODIFY_REG(huart->Instance->CR1, USART_CR1_WAKE, WakeUpMethod);
mbed_official	381:5460fc57b6e4	453
mbed_official	381:5460fc57b6e4	454	/* Enable the Peripheral */
mbed_official	381:5460fc57b6e4	455	__HAL_UART_ENABLE(huart);
mbed_official	381:5460fc57b6e4	456
mbed_official	381:5460fc57b6e4	457	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	381:5460fc57b6e4	458	return (UART_CheckIdleState(huart));
mbed_official	381:5460fc57b6e4	459	}
mbed_official	381:5460fc57b6e4	460
mbed_official	381:5460fc57b6e4	461
mbed_official	381:5460fc57b6e4	462
mbed_official	381:5460fc57b6e4	463
mbed_official	381:5460fc57b6e4	464	/**
mbed_official	381:5460fc57b6e4	465	* @brief DeInitializes the UART peripheral
mbed_official	381:5460fc57b6e4	466	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	467	* @retval HAL status
mbed_official	381:5460fc57b6e4	468	*/
mbed_official	381:5460fc57b6e4	469	HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	470	{
mbed_official	381:5460fc57b6e4	471	/* Check the UART handle allocation */
mbed_official	381:5460fc57b6e4	472	if(huart == HAL_NULL)
mbed_official	381:5460fc57b6e4	473	{
mbed_official	381:5460fc57b6e4	474	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	475	}
mbed_official	381:5460fc57b6e4	476
mbed_official	381:5460fc57b6e4	477	/* Check the parameters */
mbed_official	381:5460fc57b6e4	478	assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official	381:5460fc57b6e4	479
mbed_official	381:5460fc57b6e4	480	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	481
mbed_official	381:5460fc57b6e4	482	/* Disable the Peripheral */
mbed_official	381:5460fc57b6e4	483	__HAL_UART_DISABLE(huart);
mbed_official	381:5460fc57b6e4	484
mbed_official	381:5460fc57b6e4	485	huart->Instance->CR1 = 0x0;
mbed_official	381:5460fc57b6e4	486	huart->Instance->CR2 = 0x0;
mbed_official	381:5460fc57b6e4	487	huart->Instance->CR3 = 0x0;
mbed_official	381:5460fc57b6e4	488
mbed_official	381:5460fc57b6e4	489	/* DeInit the low level hardware */
mbed_official	381:5460fc57b6e4	490	HAL_UART_MspDeInit(huart);
mbed_official	381:5460fc57b6e4	491
mbed_official	381:5460fc57b6e4	492	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	381:5460fc57b6e4	493	huart->State = HAL_UART_STATE_RESET;
mbed_official	381:5460fc57b6e4	494
mbed_official	381:5460fc57b6e4	495	/* Process Unlock */
mbed_official	381:5460fc57b6e4	496	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	497
mbed_official	381:5460fc57b6e4	498	return HAL_OK;
mbed_official	381:5460fc57b6e4	499	}
mbed_official	381:5460fc57b6e4	500
mbed_official	381:5460fc57b6e4	501	/**
mbed_official	381:5460fc57b6e4	502	* @brief UART MSP Init
mbed_official	381:5460fc57b6e4	503	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	504	* @retval None
mbed_official	381:5460fc57b6e4	505	*/
mbed_official	381:5460fc57b6e4	506	__weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	507	{
mbed_official	381:5460fc57b6e4	508	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	381:5460fc57b6e4	509	the HAL_UART_MspInit can be implemented in the user file
mbed_official	381:5460fc57b6e4	510	*/
mbed_official	381:5460fc57b6e4	511	}
mbed_official	381:5460fc57b6e4	512
mbed_official	381:5460fc57b6e4	513	/**
mbed_official	381:5460fc57b6e4	514	* @brief UART MSP DeInit
mbed_official	381:5460fc57b6e4	515	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	516	* @retval None
mbed_official	381:5460fc57b6e4	517	*/
mbed_official	381:5460fc57b6e4	518	__weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	519	{
mbed_official	381:5460fc57b6e4	520	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	381:5460fc57b6e4	521	the HAL_UART_MspDeInit can be implemented in the user file
mbed_official	381:5460fc57b6e4	522	*/
mbed_official	381:5460fc57b6e4	523	}
mbed_official	381:5460fc57b6e4	524
mbed_official	381:5460fc57b6e4	525	/**
mbed_official	381:5460fc57b6e4	526	* @}
mbed_official	381:5460fc57b6e4	527	*/
mbed_official	381:5460fc57b6e4	528
mbed_official	381:5460fc57b6e4	529	/** @defgroup UART_Exported_Functions_Group2 Input and Output operation functions
mbed_official	381:5460fc57b6e4	530	* @brief UART Transmit/Receive functions
mbed_official	381:5460fc57b6e4	531	*
mbed_official	381:5460fc57b6e4	532	@verbatim
mbed_official	381:5460fc57b6e4	533	===============================================================================
mbed_official	381:5460fc57b6e4	534	##### I/O operation functions #####
mbed_official	381:5460fc57b6e4	535	===============================================================================
mbed_official	381:5460fc57b6e4	536	This subsection provides a set of functions allowing to manage the UART asynchronous
mbed_official	381:5460fc57b6e4	537	and Half duplex data transfers.
mbed_official	381:5460fc57b6e4	538
mbed_official	381:5460fc57b6e4	539	(#) There are two mode of transfer:
mbed_official	381:5460fc57b6e4	540	(+) Blocking mode: The communication is performed in polling mode.
mbed_official	381:5460fc57b6e4	541	The HAL status of all data processing is returned by the same function
mbed_official	381:5460fc57b6e4	542	after finishing transfer.
mbed_official	381:5460fc57b6e4	543	(+) No-Blocking mode: The communication is performed using Interrupts
mbed_official	381:5460fc57b6e4	544	or DMA, These API's return the HAL status.
mbed_official	381:5460fc57b6e4	545	The end of the data processing will be indicated through the
mbed_official	381:5460fc57b6e4	546	dedicated UART IRQ when using Interrupt mode or the DMA IRQ when
mbed_official	381:5460fc57b6e4	547	using DMA mode.
mbed_official	381:5460fc57b6e4	548	The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks
mbed_official	381:5460fc57b6e4	549	will be executed respectivelly at the end of the transmit or Receive process
mbed_official	381:5460fc57b6e4	550	The HAL_UART_ErrorCallback()user callback will be executed when a communication error is detected
mbed_official	381:5460fc57b6e4	551
mbed_official	381:5460fc57b6e4	552	(#) Blocking mode API's are :
mbed_official	381:5460fc57b6e4	553	(+) HAL_UART_Transmit()
mbed_official	381:5460fc57b6e4	554	(+) HAL_UART_Receive()
mbed_official	381:5460fc57b6e4	555
mbed_official	381:5460fc57b6e4	556	(#) Non-Blocking mode API's with Interrupt are :
mbed_official	381:5460fc57b6e4	557	(+) HAL_UART_Transmit_IT()
mbed_official	381:5460fc57b6e4	558	(+) HAL_UART_Receive_IT()
mbed_official	381:5460fc57b6e4	559	(+) HAL_UART_IRQHandler()
mbed_official	381:5460fc57b6e4	560
mbed_official	381:5460fc57b6e4	561	(#) No-Blocking mode API's with DMA are :
mbed_official	381:5460fc57b6e4	562	(+) HAL_UART_Transmit_DMA()
mbed_official	381:5460fc57b6e4	563	(+) HAL_UART_Receive_DMA()
mbed_official	381:5460fc57b6e4	564	(+) HAL_UART_DMAPause()
mbed_official	381:5460fc57b6e4	565	(+) HAL_UART_DMAResume()
mbed_official	381:5460fc57b6e4	566	(+) HAL_UART_DMAStop()
mbed_official	381:5460fc57b6e4	567
mbed_official	381:5460fc57b6e4	568	(#) A set of Transfer Complete Callbacks are provided in No_Blocking mode:
mbed_official	381:5460fc57b6e4	569	(+) HAL_UART_TxHalfCpltCallback()
mbed_official	381:5460fc57b6e4	570	(+) HAL_UART_TxCpltCallback()
mbed_official	381:5460fc57b6e4	571	(+) HAL_UART_RxHalfCpltCallback()
mbed_official	381:5460fc57b6e4	572	(+) HAL_UART_RxCpltCallback()
mbed_official	381:5460fc57b6e4	573	(+) HAL_UART_ErrorCallback()
mbed_official	381:5460fc57b6e4	574
mbed_official	381:5460fc57b6e4	575
mbed_official	381:5460fc57b6e4	576	-@- In the Half duplex communication, it is forbidden to run the transmit
mbed_official	381:5460fc57b6e4	577	and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX can't be useful.
mbed_official	381:5460fc57b6e4	578
mbed_official	381:5460fc57b6e4	579	@endverbatim
mbed_official	381:5460fc57b6e4	580	* @{
mbed_official	381:5460fc57b6e4	581	*/
mbed_official	381:5460fc57b6e4	582
mbed_official	381:5460fc57b6e4	583	/**
mbed_official	381:5460fc57b6e4	584	* @brief Send an amount of data in blocking mode
mbed_official	381:5460fc57b6e4	585	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	586	* @param pData: pointer to data buffer
mbed_official	381:5460fc57b6e4	587	* @param Size: amount of data to be sent
mbed_official	381:5460fc57b6e4	588	* @param Timeout : Timeout duration
mbed_official	381:5460fc57b6e4	589	* @retval HAL status
mbed_official	381:5460fc57b6e4	590	*/
mbed_official	381:5460fc57b6e4	591	HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size, uint32_t Timeout)
mbed_official	381:5460fc57b6e4	592	{
mbed_official	381:5460fc57b6e4	593	uint16_t* tmp;
mbed_official	381:5460fc57b6e4	594
mbed_official	381:5460fc57b6e4	595	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official	381:5460fc57b6e4	596	{
mbed_official	381:5460fc57b6e4	597	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	381:5460fc57b6e4	598	{
mbed_official	381:5460fc57b6e4	599	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	600	}
mbed_official	381:5460fc57b6e4	601
mbed_official	381:5460fc57b6e4	602	/* Process Locked */
mbed_official	381:5460fc57b6e4	603	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	604
mbed_official	381:5460fc57b6e4	605	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	381:5460fc57b6e4	606	/* Check if a non-blocking receive process is ongoing or not */
mbed_official	381:5460fc57b6e4	607	if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	381:5460fc57b6e4	608	{
mbed_official	381:5460fc57b6e4	609	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	381:5460fc57b6e4	610	}
mbed_official	381:5460fc57b6e4	611	else
mbed_official	381:5460fc57b6e4	612	{
mbed_official	381:5460fc57b6e4	613	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	381:5460fc57b6e4	614	}
mbed_official	381:5460fc57b6e4	615
mbed_official	381:5460fc57b6e4	616	huart->TxXferSize = Size;
mbed_official	381:5460fc57b6e4	617	huart->TxXferCount = Size;
mbed_official	381:5460fc57b6e4	618	while(huart->TxXferCount > 0)
mbed_official	381:5460fc57b6e4	619	{
mbed_official	381:5460fc57b6e4	620	huart->TxXferCount--;
mbed_official	381:5460fc57b6e4	621	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK)
mbed_official	381:5460fc57b6e4	622	{
mbed_official	381:5460fc57b6e4	623	return HAL_TIMEOUT;
mbed_official	381:5460fc57b6e4	624	}
mbed_official	381:5460fc57b6e4	625	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	381:5460fc57b6e4	626	{
mbed_official	381:5460fc57b6e4	627	tmp = (uint16_t*) pData;
mbed_official	381:5460fc57b6e4	628	huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
mbed_official	381:5460fc57b6e4	629	pData += 2;
mbed_official	381:5460fc57b6e4	630	}
mbed_official	381:5460fc57b6e4	631	else
mbed_official	381:5460fc57b6e4	632	{
mbed_official	381:5460fc57b6e4	633	huart->Instance->TDR = (*pData++ & (uint8_t)0xFF);
mbed_official	381:5460fc57b6e4	634	}
mbed_official	381:5460fc57b6e4	635	}
mbed_official	381:5460fc57b6e4	636	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, Timeout) != HAL_OK)
mbed_official	381:5460fc57b6e4	637	{
mbed_official	381:5460fc57b6e4	638	return HAL_TIMEOUT;
mbed_official	381:5460fc57b6e4	639	}
mbed_official	381:5460fc57b6e4	640	/* Check if a non-blocking receive Process is ongoing or not */
mbed_official	381:5460fc57b6e4	641	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	381:5460fc57b6e4	642	{
mbed_official	381:5460fc57b6e4	643	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	381:5460fc57b6e4	644	}
mbed_official	381:5460fc57b6e4	645	else
mbed_official	381:5460fc57b6e4	646	{
mbed_official	381:5460fc57b6e4	647	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	648	}
mbed_official	381:5460fc57b6e4	649
mbed_official	381:5460fc57b6e4	650	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	651	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	652
mbed_official	381:5460fc57b6e4	653	return HAL_OK;
mbed_official	381:5460fc57b6e4	654	}
mbed_official	381:5460fc57b6e4	655	else
mbed_official	381:5460fc57b6e4	656	{
mbed_official	381:5460fc57b6e4	657	return HAL_BUSY;
mbed_official	381:5460fc57b6e4	658	}
mbed_official	381:5460fc57b6e4	659	}
mbed_official	381:5460fc57b6e4	660
mbed_official	381:5460fc57b6e4	661	/**
mbed_official	381:5460fc57b6e4	662	* @brief Receive an amount of data in blocking mode
mbed_official	381:5460fc57b6e4	663	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	664	* @param pData: pointer to data buffer
mbed_official	381:5460fc57b6e4	665	* @param Size: amount of data to be received
mbed_official	381:5460fc57b6e4	666	* @param Timeout : Timeout duration
mbed_official	381:5460fc57b6e4	667	* @retval HAL status
mbed_official	381:5460fc57b6e4	668	*/
mbed_official	381:5460fc57b6e4	669	HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size, uint32_t Timeout)
mbed_official	381:5460fc57b6e4	670	{
mbed_official	381:5460fc57b6e4	671	uint16_t* tmp;
mbed_official	381:5460fc57b6e4	672	uint16_t uhMask;
mbed_official	381:5460fc57b6e4	673
mbed_official	381:5460fc57b6e4	674	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official	381:5460fc57b6e4	675	{
mbed_official	381:5460fc57b6e4	676	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	381:5460fc57b6e4	677	{
mbed_official	381:5460fc57b6e4	678	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	679	}
mbed_official	381:5460fc57b6e4	680
mbed_official	381:5460fc57b6e4	681	/* Process Locked */
mbed_official	381:5460fc57b6e4	682	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	683
mbed_official	381:5460fc57b6e4	684	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	381:5460fc57b6e4	685	/* Check if a non-blocking transmit process is ongoing or not */
mbed_official	381:5460fc57b6e4	686	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	381:5460fc57b6e4	687	{
mbed_official	381:5460fc57b6e4	688	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	381:5460fc57b6e4	689	}
mbed_official	381:5460fc57b6e4	690	else
mbed_official	381:5460fc57b6e4	691	{
mbed_official	381:5460fc57b6e4	692	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	381:5460fc57b6e4	693	}
mbed_official	381:5460fc57b6e4	694
mbed_official	381:5460fc57b6e4	695	huart->RxXferSize = Size;
mbed_official	381:5460fc57b6e4	696	huart->RxXferCount = Size;
mbed_official	381:5460fc57b6e4	697
mbed_official	381:5460fc57b6e4	698	/* Computation of UART mask to apply to RDR register */
mbed_official	381:5460fc57b6e4	699	__HAL_UART_MASK_COMPUTATION(huart);
mbed_official	381:5460fc57b6e4	700	uhMask = huart->Mask;
mbed_official	381:5460fc57b6e4	701
mbed_official	381:5460fc57b6e4	702	/* as long as data have to be received */
mbed_official	381:5460fc57b6e4	703	while(huart->RxXferCount > 0)
mbed_official	381:5460fc57b6e4	704	{
mbed_official	381:5460fc57b6e4	705	huart->RxXferCount--;
mbed_official	381:5460fc57b6e4	706	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
mbed_official	381:5460fc57b6e4	707	{
mbed_official	381:5460fc57b6e4	708	return HAL_TIMEOUT;
mbed_official	381:5460fc57b6e4	709	}
mbed_official	381:5460fc57b6e4	710	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	381:5460fc57b6e4	711	{
mbed_official	381:5460fc57b6e4	712	tmp = (uint16_t*) pData ;
mbed_official	381:5460fc57b6e4	713	*tmp = (uint16_t)(huart->Instance->RDR & uhMask);
mbed_official	381:5460fc57b6e4	714	pData +=2;
mbed_official	381:5460fc57b6e4	715	}
mbed_official	381:5460fc57b6e4	716	else
mbed_official	381:5460fc57b6e4	717	{
mbed_official	381:5460fc57b6e4	718	*pData++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
mbed_official	381:5460fc57b6e4	719	}
mbed_official	381:5460fc57b6e4	720	}
mbed_official	381:5460fc57b6e4	721
mbed_official	381:5460fc57b6e4	722	/* Check if a non-blocking transmit Process is ongoing or not */
mbed_official	381:5460fc57b6e4	723	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	381:5460fc57b6e4	724	{
mbed_official	381:5460fc57b6e4	725	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	381:5460fc57b6e4	726	}
mbed_official	381:5460fc57b6e4	727	else
mbed_official	381:5460fc57b6e4	728	{
mbed_official	381:5460fc57b6e4	729	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	730	}
mbed_official	381:5460fc57b6e4	731	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	732	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	733
mbed_official	381:5460fc57b6e4	734	return HAL_OK;
mbed_official	381:5460fc57b6e4	735	}
mbed_official	381:5460fc57b6e4	736	else
mbed_official	381:5460fc57b6e4	737	{
mbed_official	381:5460fc57b6e4	738	return HAL_BUSY;
mbed_official	381:5460fc57b6e4	739	}
mbed_official	381:5460fc57b6e4	740	}
mbed_official	381:5460fc57b6e4	741
mbed_official	381:5460fc57b6e4	742	/**
mbed_official	381:5460fc57b6e4	743	* @brief Send an amount of data in interrupt mode
mbed_official	381:5460fc57b6e4	744	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	745	* @param pData: pointer to data buffer
mbed_official	381:5460fc57b6e4	746	* @param Size: amount of data to be sent
mbed_official	381:5460fc57b6e4	747	* @retval HAL status
mbed_official	381:5460fc57b6e4	748	*/
mbed_official	381:5460fc57b6e4	749	HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	381:5460fc57b6e4	750	{
mbed_official	381:5460fc57b6e4	751	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official	381:5460fc57b6e4	752	{
mbed_official	381:5460fc57b6e4	753	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	381:5460fc57b6e4	754	{
mbed_official	381:5460fc57b6e4	755	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	756	}
mbed_official	381:5460fc57b6e4	757
mbed_official	381:5460fc57b6e4	758	/* Process Locked */
mbed_official	381:5460fc57b6e4	759	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	760
mbed_official	381:5460fc57b6e4	761	huart->pTxBuffPtr = pData;
mbed_official	381:5460fc57b6e4	762	huart->TxXferSize = Size;
mbed_official	381:5460fc57b6e4	763	huart->TxXferCount = Size;
mbed_official	381:5460fc57b6e4	764
mbed_official	381:5460fc57b6e4	765	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	381:5460fc57b6e4	766	/* Check if a receive process is ongoing or not */
mbed_official	381:5460fc57b6e4	767	if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	381:5460fc57b6e4	768	{
mbed_official	381:5460fc57b6e4	769	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	381:5460fc57b6e4	770	}
mbed_official	381:5460fc57b6e4	771	else
mbed_official	381:5460fc57b6e4	772	{
mbed_official	381:5460fc57b6e4	773	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	381:5460fc57b6e4	774	}
mbed_official	381:5460fc57b6e4	775
mbed_official	381:5460fc57b6e4	776	/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	381:5460fc57b6e4	777	__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
mbed_official	381:5460fc57b6e4	778
mbed_official	381:5460fc57b6e4	779	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	780	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	781
mbed_official	381:5460fc57b6e4	782	/* Enable the UART Transmit Data Register Empty Interrupt */
mbed_official	381:5460fc57b6e4	783	__HAL_UART_ENABLE_IT(huart, UART_IT_TXE);
mbed_official	381:5460fc57b6e4	784
mbed_official	381:5460fc57b6e4	785	return HAL_OK;
mbed_official	381:5460fc57b6e4	786	}
mbed_official	381:5460fc57b6e4	787	else
mbed_official	381:5460fc57b6e4	788	{
mbed_official	381:5460fc57b6e4	789	return HAL_BUSY;
mbed_official	381:5460fc57b6e4	790	}
mbed_official	381:5460fc57b6e4	791	}
mbed_official	381:5460fc57b6e4	792
mbed_official	381:5460fc57b6e4	793	/**
mbed_official	381:5460fc57b6e4	794	* @brief Receive an amount of data in interrupt mode
mbed_official	381:5460fc57b6e4	795	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	796	* @param pData: pointer to data buffer
mbed_official	381:5460fc57b6e4	797	* @param Size: amount of data to be received
mbed_official	381:5460fc57b6e4	798	* @retval HAL status
mbed_official	381:5460fc57b6e4	799	*/
mbed_official	381:5460fc57b6e4	800	HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	381:5460fc57b6e4	801	{
mbed_official	381:5460fc57b6e4	802	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official	381:5460fc57b6e4	803	{
mbed_official	381:5460fc57b6e4	804	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	381:5460fc57b6e4	805	{
mbed_official	381:5460fc57b6e4	806	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	807	}
mbed_official	381:5460fc57b6e4	808
mbed_official	381:5460fc57b6e4	809	/* Process Locked */
mbed_official	381:5460fc57b6e4	810	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	811
mbed_official	381:5460fc57b6e4	812	huart->pRxBuffPtr = pData;
mbed_official	381:5460fc57b6e4	813	huart->RxXferSize = Size;
mbed_official	381:5460fc57b6e4	814	huart->RxXferCount = Size;
mbed_official	381:5460fc57b6e4	815
mbed_official	381:5460fc57b6e4	816	/* Computation of UART mask to apply to RDR register */
mbed_official	381:5460fc57b6e4	817	__HAL_UART_MASK_COMPUTATION(huart);
mbed_official	381:5460fc57b6e4	818
mbed_official	381:5460fc57b6e4	819	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	381:5460fc57b6e4	820	/* Check if a transmit process is ongoing or not */
mbed_official	381:5460fc57b6e4	821	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	381:5460fc57b6e4	822	{
mbed_official	381:5460fc57b6e4	823	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	381:5460fc57b6e4	824	}
mbed_official	381:5460fc57b6e4	825	else
mbed_official	381:5460fc57b6e4	826	{
mbed_official	381:5460fc57b6e4	827	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	381:5460fc57b6e4	828	}
mbed_official	381:5460fc57b6e4	829
mbed_official	381:5460fc57b6e4	830	/* Enable the UART Parity Error Interrupt */
mbed_official	381:5460fc57b6e4	831	__HAL_UART_ENABLE_IT(huart, UART_IT_PE);
mbed_official	381:5460fc57b6e4	832
mbed_official	381:5460fc57b6e4	833	/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	381:5460fc57b6e4	834	__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
mbed_official	381:5460fc57b6e4	835
mbed_official	381:5460fc57b6e4	836	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	837	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	838
mbed_official	381:5460fc57b6e4	839	/* Enable the UART Data Register not empty Interrupt */
mbed_official	381:5460fc57b6e4	840	__HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
mbed_official	381:5460fc57b6e4	841
mbed_official	381:5460fc57b6e4	842	return HAL_OK;
mbed_official	381:5460fc57b6e4	843	}
mbed_official	381:5460fc57b6e4	844	else
mbed_official	381:5460fc57b6e4	845	{
mbed_official	381:5460fc57b6e4	846	return HAL_BUSY;
mbed_official	381:5460fc57b6e4	847	}
mbed_official	381:5460fc57b6e4	848	}
mbed_official	381:5460fc57b6e4	849
mbed_official	381:5460fc57b6e4	850	/**
mbed_official	381:5460fc57b6e4	851	* @brief Send an amount of data in DMA mode
mbed_official	381:5460fc57b6e4	852	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	853	* @param pData: pointer to data buffer
mbed_official	381:5460fc57b6e4	854	* @param Size: amount of data to be sent
mbed_official	381:5460fc57b6e4	855	* @retval HAL status
mbed_official	381:5460fc57b6e4	856	*/
mbed_official	381:5460fc57b6e4	857	HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	381:5460fc57b6e4	858	{
mbed_official	381:5460fc57b6e4	859	uint32_t *tmp;
mbed_official	381:5460fc57b6e4	860
mbed_official	381:5460fc57b6e4	861	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_RX))
mbed_official	381:5460fc57b6e4	862	{
mbed_official	381:5460fc57b6e4	863	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	381:5460fc57b6e4	864	{
mbed_official	381:5460fc57b6e4	865	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	866	}
mbed_official	381:5460fc57b6e4	867
mbed_official	381:5460fc57b6e4	868	/* Process Locked */
mbed_official	381:5460fc57b6e4	869	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	870
mbed_official	381:5460fc57b6e4	871	huart->pTxBuffPtr = pData;
mbed_official	381:5460fc57b6e4	872	huart->TxXferSize = Size;
mbed_official	381:5460fc57b6e4	873	huart->TxXferCount = Size;
mbed_official	381:5460fc57b6e4	874
mbed_official	381:5460fc57b6e4	875	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	381:5460fc57b6e4	876	/* Check if a receive process is ongoing or not */
mbed_official	381:5460fc57b6e4	877	if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	381:5460fc57b6e4	878	{
mbed_official	381:5460fc57b6e4	879	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	381:5460fc57b6e4	880	}
mbed_official	381:5460fc57b6e4	881	else
mbed_official	381:5460fc57b6e4	882	{
mbed_official	381:5460fc57b6e4	883	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	381:5460fc57b6e4	884	}
mbed_official	381:5460fc57b6e4	885
mbed_official	381:5460fc57b6e4	886	/* Set the UART DMA transfer complete callback */
mbed_official	381:5460fc57b6e4	887	huart->hdmatx->XferCpltCallback = UART_DMATransmitCplt;
mbed_official	381:5460fc57b6e4	888
mbed_official	381:5460fc57b6e4	889	/* Set the UART DMA Half transfer complete callback */
mbed_official	381:5460fc57b6e4	890	huart->hdmatx->XferHalfCpltCallback = UART_DMATxHalfCplt;
mbed_official	381:5460fc57b6e4	891
mbed_official	381:5460fc57b6e4	892	/* Set the DMA error callback */
mbed_official	381:5460fc57b6e4	893	huart->hdmatx->XferErrorCallback = UART_DMAError;
mbed_official	381:5460fc57b6e4	894
mbed_official	381:5460fc57b6e4	895	/* Enable the UART transmit DMA channel */
mbed_official	381:5460fc57b6e4	896	tmp = (uint32_t*)&pData;
mbed_official	381:5460fc57b6e4	897	HAL_DMA_Start_IT(huart->hdmatx, (uint32_t)tmp, (uint32_t)&huart->Instance->TDR, Size);
mbed_official	381:5460fc57b6e4	898
mbed_official	381:5460fc57b6e4	899	/* Enable the DMA transfer for transmit request by setting the DMAT bit
mbed_official	381:5460fc57b6e4	900	in the UART CR3 register */
mbed_official	381:5460fc57b6e4	901	huart->Instance->CR3 \|= USART_CR3_DMAT;
mbed_official	381:5460fc57b6e4	902
mbed_official	381:5460fc57b6e4	903	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	904	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	905
mbed_official	381:5460fc57b6e4	906	return HAL_OK;
mbed_official	381:5460fc57b6e4	907	}
mbed_official	381:5460fc57b6e4	908	else
mbed_official	381:5460fc57b6e4	909	{
mbed_official	381:5460fc57b6e4	910	return HAL_BUSY;
mbed_official	381:5460fc57b6e4	911	}
mbed_official	381:5460fc57b6e4	912	}
mbed_official	381:5460fc57b6e4	913
mbed_official	381:5460fc57b6e4	914	/**
mbed_official	381:5460fc57b6e4	915	* @brief Receive an amount of data in DMA mode
mbed_official	381:5460fc57b6e4	916	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	917	* @param pData: pointer to data buffer
mbed_official	381:5460fc57b6e4	918	* @param Size: amount of data to be received
mbed_official	381:5460fc57b6e4	919	* @note When the UART parity is enabled (PCE = 1), the received data contain
mbed_official	381:5460fc57b6e4	920	* the parity bit (MSB position)
mbed_official	381:5460fc57b6e4	921	* @retval HAL status
mbed_official	381:5460fc57b6e4	922	*/
mbed_official	381:5460fc57b6e4	923	HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef huart, uint8_t pData, uint16_t Size)
mbed_official	381:5460fc57b6e4	924	{
mbed_official	381:5460fc57b6e4	925	uint32_t *tmp;
mbed_official	381:5460fc57b6e4	926
mbed_official	381:5460fc57b6e4	927	if((huart->State == HAL_UART_STATE_READY) \|\| (huart->State == HAL_UART_STATE_BUSY_TX))
mbed_official	381:5460fc57b6e4	928	{
mbed_official	381:5460fc57b6e4	929	if((pData == HAL_NULL ) \|\| (Size == 0))
mbed_official	381:5460fc57b6e4	930	{
mbed_official	381:5460fc57b6e4	931	return HAL_ERROR;
mbed_official	381:5460fc57b6e4	932	}
mbed_official	381:5460fc57b6e4	933
mbed_official	381:5460fc57b6e4	934	/* Process Locked */
mbed_official	381:5460fc57b6e4	935	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	936
mbed_official	381:5460fc57b6e4	937	huart->pRxBuffPtr = pData;
mbed_official	381:5460fc57b6e4	938	huart->RxXferSize = Size;
mbed_official	381:5460fc57b6e4	939
mbed_official	381:5460fc57b6e4	940	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	381:5460fc57b6e4	941	/* Check if a transmit process is ongoing or not */
mbed_official	381:5460fc57b6e4	942	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	381:5460fc57b6e4	943	{
mbed_official	381:5460fc57b6e4	944	huart->State = HAL_UART_STATE_BUSY_TX_RX;
mbed_official	381:5460fc57b6e4	945	}
mbed_official	381:5460fc57b6e4	946	else
mbed_official	381:5460fc57b6e4	947	{
mbed_official	381:5460fc57b6e4	948	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	381:5460fc57b6e4	949	}
mbed_official	381:5460fc57b6e4	950
mbed_official	381:5460fc57b6e4	951	/* Set the UART DMA transfer complete callback */
mbed_official	381:5460fc57b6e4	952	huart->hdmarx->XferCpltCallback = UART_DMAReceiveCplt;
mbed_official	381:5460fc57b6e4	953
mbed_official	381:5460fc57b6e4	954	/* Set the UART DMA Half transfer complete callback */
mbed_official	381:5460fc57b6e4	955	huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt;
mbed_official	381:5460fc57b6e4	956
mbed_official	381:5460fc57b6e4	957	/* Set the DMA error callback */
mbed_official	381:5460fc57b6e4	958	huart->hdmarx->XferErrorCallback = UART_DMAError;
mbed_official	381:5460fc57b6e4	959
mbed_official	381:5460fc57b6e4	960	/* Enable the DMA channel */
mbed_official	381:5460fc57b6e4	961	tmp = (uint32_t*)&pData;
mbed_official	381:5460fc57b6e4	962	HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->RDR, (uint32_t)tmp, Size);
mbed_official	381:5460fc57b6e4	963
mbed_official	381:5460fc57b6e4	964	/* Enable the DMA transfer for the receiver request by setting the DMAR bit
mbed_official	381:5460fc57b6e4	965	in the UART CR3 register */
mbed_official	381:5460fc57b6e4	966	huart->Instance->CR3 \|= USART_CR3_DMAR;
mbed_official	381:5460fc57b6e4	967
mbed_official	381:5460fc57b6e4	968	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	969	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	970
mbed_official	381:5460fc57b6e4	971	return HAL_OK;
mbed_official	381:5460fc57b6e4	972	}
mbed_official	381:5460fc57b6e4	973	else
mbed_official	381:5460fc57b6e4	974	{
mbed_official	381:5460fc57b6e4	975	return HAL_BUSY;
mbed_official	381:5460fc57b6e4	976	}
mbed_official	381:5460fc57b6e4	977	}
mbed_official	381:5460fc57b6e4	978
mbed_official	381:5460fc57b6e4	979	/**
mbed_official	381:5460fc57b6e4	980	* @brief Pauses the DMA Transfer.
mbed_official	381:5460fc57b6e4	981	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	982	* @retval None
mbed_official	381:5460fc57b6e4	983	*/
mbed_official	381:5460fc57b6e4	984	HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	985	{
mbed_official	381:5460fc57b6e4	986	/* Process Locked */
mbed_official	381:5460fc57b6e4	987	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	988
mbed_official	381:5460fc57b6e4	989	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	381:5460fc57b6e4	990	{
mbed_official	381:5460fc57b6e4	991	/* Disable the UART DMA Tx request */
mbed_official	381:5460fc57b6e4	992	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official	381:5460fc57b6e4	993	}
mbed_official	381:5460fc57b6e4	994	else if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	381:5460fc57b6e4	995	{
mbed_official	381:5460fc57b6e4	996	/* Disable the UART DMA Rx request */
mbed_official	381:5460fc57b6e4	997	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official	381:5460fc57b6e4	998	}
mbed_official	381:5460fc57b6e4	999	else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	381:5460fc57b6e4	1000	{
mbed_official	381:5460fc57b6e4	1001	/* Disable the UART DMA Tx request */
mbed_official	381:5460fc57b6e4	1002	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
mbed_official	381:5460fc57b6e4	1003	/* Disable the UART DMA Rx request */
mbed_official	381:5460fc57b6e4	1004	huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
mbed_official	381:5460fc57b6e4	1005	}
mbed_official	381:5460fc57b6e4	1006
mbed_official	381:5460fc57b6e4	1007	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	1008	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	1009
mbed_official	381:5460fc57b6e4	1010	return HAL_OK;
mbed_official	381:5460fc57b6e4	1011	}
mbed_official	381:5460fc57b6e4	1012
mbed_official	381:5460fc57b6e4	1013	/**
mbed_official	381:5460fc57b6e4	1014	* @brief Resumes the DMA Transfer.
mbed_official	381:5460fc57b6e4	1015	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1016	* @retval None
mbed_official	381:5460fc57b6e4	1017	*/
mbed_official	381:5460fc57b6e4	1018	HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1019	{
mbed_official	381:5460fc57b6e4	1020	/* Process Locked */
mbed_official	381:5460fc57b6e4	1021	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	1022
mbed_official	381:5460fc57b6e4	1023	if(huart->State == HAL_UART_STATE_BUSY_TX)
mbed_official	381:5460fc57b6e4	1024	{
mbed_official	381:5460fc57b6e4	1025	/* Enable the UART DMA Tx request */
mbed_official	381:5460fc57b6e4	1026	huart->Instance->CR3 \|= USART_CR3_DMAT;
mbed_official	381:5460fc57b6e4	1027	}
mbed_official	381:5460fc57b6e4	1028	else if(huart->State == HAL_UART_STATE_BUSY_RX)
mbed_official	381:5460fc57b6e4	1029	{
mbed_official	381:5460fc57b6e4	1030	/* Enable the UART DMA Rx request */
mbed_official	381:5460fc57b6e4	1031	huart->Instance->CR3 \|= USART_CR3_DMAR;
mbed_official	381:5460fc57b6e4	1032	}
mbed_official	381:5460fc57b6e4	1033	else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	381:5460fc57b6e4	1034	{
mbed_official	381:5460fc57b6e4	1035	/* Enable the UART DMA Rx request before the DMA Tx request */
mbed_official	381:5460fc57b6e4	1036	huart->Instance->CR3 \|= USART_CR3_DMAR;
mbed_official	381:5460fc57b6e4	1037	/* Enable the UART DMA Tx request */
mbed_official	381:5460fc57b6e4	1038	huart->Instance->CR3 \|= USART_CR3_DMAT;
mbed_official	381:5460fc57b6e4	1039	}
mbed_official	381:5460fc57b6e4	1040
mbed_official	381:5460fc57b6e4	1041	/* If the UART peripheral is still not enabled, enable it */
mbed_official	381:5460fc57b6e4	1042	if ((huart->Instance->CR1 & USART_CR1_UE) == 0)
mbed_official	381:5460fc57b6e4	1043	{
mbed_official	381:5460fc57b6e4	1044	/* Enable UART peripheral */
mbed_official	381:5460fc57b6e4	1045	__HAL_UART_ENABLE(huart);
mbed_official	381:5460fc57b6e4	1046	}
mbed_official	381:5460fc57b6e4	1047
mbed_official	381:5460fc57b6e4	1048	/* TEACK and/or REACK to check before moving huart->State to Ready */
mbed_official	381:5460fc57b6e4	1049	return (UART_CheckIdleState(huart));
mbed_official	381:5460fc57b6e4	1050	}
mbed_official	381:5460fc57b6e4	1051
mbed_official	381:5460fc57b6e4	1052	/**
mbed_official	381:5460fc57b6e4	1053	* @brief Stops the DMA Transfer.
mbed_official	381:5460fc57b6e4	1054	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1055	* @retval None
mbed_official	381:5460fc57b6e4	1056	*/
mbed_official	381:5460fc57b6e4	1057	HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1058	{
mbed_official	381:5460fc57b6e4	1059	/* Process Locked */
mbed_official	381:5460fc57b6e4	1060	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	1061
mbed_official	381:5460fc57b6e4	1062	/* Disable the UART Tx/Rx DMA requests */
mbed_official	381:5460fc57b6e4	1063	huart->Instance->CR3 &= ~USART_CR3_DMAT;
mbed_official	381:5460fc57b6e4	1064	huart->Instance->CR3 &= ~USART_CR3_DMAR;
mbed_official	381:5460fc57b6e4	1065
mbed_official	381:5460fc57b6e4	1066	/* Abort the UART DMA tx channel */
mbed_official	381:5460fc57b6e4	1067	if(huart->hdmatx != HAL_NULL)
mbed_official	381:5460fc57b6e4	1068	{
mbed_official	381:5460fc57b6e4	1069	HAL_DMA_Abort(huart->hdmatx);
mbed_official	381:5460fc57b6e4	1070	}
mbed_official	381:5460fc57b6e4	1071	/* Abort the UART DMA rx channel */
mbed_official	381:5460fc57b6e4	1072	if(huart->hdmarx != HAL_NULL)
mbed_official	381:5460fc57b6e4	1073	{
mbed_official	381:5460fc57b6e4	1074	HAL_DMA_Abort(huart->hdmarx);
mbed_official	381:5460fc57b6e4	1075	}
mbed_official	381:5460fc57b6e4	1076
mbed_official	381:5460fc57b6e4	1077	/* Disable UART peripheral */
mbed_official	381:5460fc57b6e4	1078	__HAL_UART_DISABLE(huart);
mbed_official	381:5460fc57b6e4	1079
mbed_official	381:5460fc57b6e4	1080	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1081
mbed_official	381:5460fc57b6e4	1082	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	1083	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	1084
mbed_official	381:5460fc57b6e4	1085	return HAL_OK;
mbed_official	381:5460fc57b6e4	1086	}
mbed_official	381:5460fc57b6e4	1087
mbed_official	381:5460fc57b6e4	1088	/**
mbed_official	381:5460fc57b6e4	1089	* @brief This function handles UART interrupt request.
mbed_official	381:5460fc57b6e4	1090	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1091	* @retval None
mbed_official	381:5460fc57b6e4	1092	*/
mbed_official	381:5460fc57b6e4	1093	void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1094	{
mbed_official	381:5460fc57b6e4	1095	/* UART parity error interrupt occurred -------------------------------------*/
mbed_official	381:5460fc57b6e4	1096	if((__HAL_UART_GET_IT(huart, UART_IT_PE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_PE) != RESET))
mbed_official	381:5460fc57b6e4	1097	{
mbed_official	381:5460fc57b6e4	1098	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_PEF);
mbed_official	381:5460fc57b6e4	1099
mbed_official	381:5460fc57b6e4	1100	huart->ErrorCode \|= HAL_UART_ERROR_PE;
mbed_official	381:5460fc57b6e4	1101	/* Set the UART state ready to be able to start again the process */
mbed_official	381:5460fc57b6e4	1102	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1103	}
mbed_official	381:5460fc57b6e4	1104
mbed_official	381:5460fc57b6e4	1105	/* UART frame error interrupt occured --------------------------------------*/
mbed_official	381:5460fc57b6e4	1106	if((__HAL_UART_GET_IT(huart, UART_IT_FE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
mbed_official	381:5460fc57b6e4	1107	{
mbed_official	381:5460fc57b6e4	1108	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_FEF);
mbed_official	381:5460fc57b6e4	1109
mbed_official	381:5460fc57b6e4	1110	huart->ErrorCode \|= HAL_UART_ERROR_FE;
mbed_official	381:5460fc57b6e4	1111	/* Set the UART state ready to be able to start again the process */
mbed_official	381:5460fc57b6e4	1112	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1113	}
mbed_official	381:5460fc57b6e4	1114
mbed_official	381:5460fc57b6e4	1115	/* UART noise error interrupt occured --------------------------------------*/
mbed_official	381:5460fc57b6e4	1116	if((__HAL_UART_GET_IT(huart, UART_IT_NE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
mbed_official	381:5460fc57b6e4	1117	{
mbed_official	381:5460fc57b6e4	1118	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_NEF);
mbed_official	381:5460fc57b6e4	1119
mbed_official	381:5460fc57b6e4	1120	huart->ErrorCode \|= HAL_UART_ERROR_NE;
mbed_official	381:5460fc57b6e4	1121	/* Set the UART state ready to be able to start again the process */
mbed_official	381:5460fc57b6e4	1122	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1123	}
mbed_official	381:5460fc57b6e4	1124
mbed_official	381:5460fc57b6e4	1125	/* UART Over-Run interrupt occured -----------------------------------------*/
mbed_official	381:5460fc57b6e4	1126	if((__HAL_UART_GET_IT(huart, UART_IT_ORE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET))
mbed_official	381:5460fc57b6e4	1127	{
mbed_official	381:5460fc57b6e4	1128	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF);
mbed_official	381:5460fc57b6e4	1129
mbed_official	381:5460fc57b6e4	1130	huart->ErrorCode \|= HAL_UART_ERROR_ORE;
mbed_official	381:5460fc57b6e4	1131	/* Set the UART state ready to be able to start again the process */
mbed_official	381:5460fc57b6e4	1132	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1133	}
mbed_official	381:5460fc57b6e4	1134
mbed_official	381:5460fc57b6e4	1135	/* Call UART Error Call back function if need be --------------------------*/
mbed_official	381:5460fc57b6e4	1136	if(huart->ErrorCode != HAL_UART_ERROR_NONE)
mbed_official	381:5460fc57b6e4	1137	{
mbed_official	381:5460fc57b6e4	1138	HAL_UART_ErrorCallback(huart);
mbed_official	381:5460fc57b6e4	1139	}
mbed_official	381:5460fc57b6e4	1140
mbed_official	381:5460fc57b6e4	1141	/* UART wakeup from Stop mode interrupt occurred -------------------------------------*/
mbed_official	381:5460fc57b6e4	1142	if((__HAL_UART_GET_IT(huart, UART_IT_WUF) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_WUF) != RESET))
mbed_official	381:5460fc57b6e4	1143	{
mbed_official	381:5460fc57b6e4	1144	__HAL_UART_CLEAR_IT(huart, UART_CLEAR_WUF);
mbed_official	381:5460fc57b6e4	1145	/* Set the UART state ready to be able to start again the process */
mbed_official	381:5460fc57b6e4	1146	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1147	HAL_UART_WakeupCallback(huart);
mbed_official	381:5460fc57b6e4	1148	}
mbed_official	381:5460fc57b6e4	1149
mbed_official	381:5460fc57b6e4	1150	/* UART in mode Receiver ---------------------------------------------------*/
mbed_official	381:5460fc57b6e4	1151	if((__HAL_UART_GET_IT(huart, UART_IT_RXNE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_RXNE) != RESET))
mbed_official	381:5460fc57b6e4	1152	{
mbed_official	381:5460fc57b6e4	1153	UART_Receive_IT(huart);
mbed_official	381:5460fc57b6e4	1154	/* Clear RXNE interrupt flag */
mbed_official	381:5460fc57b6e4	1155	__HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST);
mbed_official	381:5460fc57b6e4	1156	}
mbed_official	381:5460fc57b6e4	1157
mbed_official	381:5460fc57b6e4	1158
mbed_official	381:5460fc57b6e4	1159	/* UART in mode Transmitter ------------------------------------------------*/
mbed_official	381:5460fc57b6e4	1160	if((__HAL_UART_GET_IT(huart, UART_IT_TXE) != RESET) &&(__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TXE) != RESET))
mbed_official	381:5460fc57b6e4	1161	{
mbed_official	381:5460fc57b6e4	1162	UART_Transmit_IT(huart);
mbed_official	381:5460fc57b6e4	1163	}
mbed_official	381:5460fc57b6e4	1164
mbed_official	381:5460fc57b6e4	1165	/* UART in mode Transmitter (transmission end) -----------------------------*/
mbed_official	381:5460fc57b6e4	1166	if((__HAL_UART_GET_IT(huart, UART_IT_TC) != RESET) &&(__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TC) != RESET))
mbed_official	381:5460fc57b6e4	1167	{
mbed_official	381:5460fc57b6e4	1168	UART_EndTransmit_IT(huart);
mbed_official	381:5460fc57b6e4	1169	}
mbed_official	381:5460fc57b6e4	1170
mbed_official	381:5460fc57b6e4	1171	}
mbed_official	381:5460fc57b6e4	1172
mbed_official	381:5460fc57b6e4	1173
mbed_official	381:5460fc57b6e4	1174	/**
mbed_official	381:5460fc57b6e4	1175	* @brief This function handles UART Communication Timeout.
mbed_official	381:5460fc57b6e4	1176	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1177	* @param Flag: specifies the UART flag to check.
mbed_official	381:5460fc57b6e4	1178	* @param Status: The new Flag status (SET or RESET).
mbed_official	381:5460fc57b6e4	1179	* @param Timeout: Timeout duration
mbed_official	381:5460fc57b6e4	1180	* @retval HAL status
mbed_official	381:5460fc57b6e4	1181	*/
mbed_official	381:5460fc57b6e4	1182	HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
mbed_official	381:5460fc57b6e4	1183	{
mbed_official	381:5460fc57b6e4	1184	uint32_t tickstart = HAL_GetTick();
mbed_official	381:5460fc57b6e4	1185
mbed_official	381:5460fc57b6e4	1186	/* Wait until flag is set */
mbed_official	381:5460fc57b6e4	1187	if(Status == RESET)
mbed_official	381:5460fc57b6e4	1188	{
mbed_official	381:5460fc57b6e4	1189	while(__HAL_UART_GET_FLAG(huart, Flag) == RESET)
mbed_official	381:5460fc57b6e4	1190	{
mbed_official	381:5460fc57b6e4	1191	/* Check for the Timeout */
mbed_official	381:5460fc57b6e4	1192	if(Timeout != HAL_MAX_DELAY)
mbed_official	381:5460fc57b6e4	1193	{
mbed_official	381:5460fc57b6e4	1194	if((Timeout == 0) \|\| ((HAL_GetTick()-tickstart) > Timeout))
mbed_official	381:5460fc57b6e4	1195	{
mbed_official	381:5460fc57b6e4	1196	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official	381:5460fc57b6e4	1197	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official	381:5460fc57b6e4	1198	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official	381:5460fc57b6e4	1199	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	381:5460fc57b6e4	1200	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	381:5460fc57b6e4	1201
mbed_official	381:5460fc57b6e4	1202	huart->State = HAL_UART_STATE_TIMEOUT;
mbed_official	381:5460fc57b6e4	1203
mbed_official	381:5460fc57b6e4	1204	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	1205	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	1206
mbed_official	381:5460fc57b6e4	1207	return HAL_TIMEOUT;
mbed_official	381:5460fc57b6e4	1208	}
mbed_official	381:5460fc57b6e4	1209	}
mbed_official	381:5460fc57b6e4	1210	}
mbed_official	381:5460fc57b6e4	1211	}
mbed_official	381:5460fc57b6e4	1212	else
mbed_official	381:5460fc57b6e4	1213	{
mbed_official	381:5460fc57b6e4	1214	while(__HAL_UART_GET_FLAG(huart, Flag) != RESET)
mbed_official	381:5460fc57b6e4	1215	{
mbed_official	381:5460fc57b6e4	1216	/* Check for the Timeout */
mbed_official	381:5460fc57b6e4	1217	if(Timeout != HAL_MAX_DELAY)
mbed_official	381:5460fc57b6e4	1218	{
mbed_official	381:5460fc57b6e4	1219	if((Timeout == 0) \|\| ((HAL_GetTick()-tickstart) > Timeout))
mbed_official	381:5460fc57b6e4	1220	{
mbed_official	381:5460fc57b6e4	1221	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
mbed_official	381:5460fc57b6e4	1222	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official	381:5460fc57b6e4	1223	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official	381:5460fc57b6e4	1224	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	381:5460fc57b6e4	1225	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	381:5460fc57b6e4	1226
mbed_official	381:5460fc57b6e4	1227	huart->State = HAL_UART_STATE_TIMEOUT;
mbed_official	381:5460fc57b6e4	1228
mbed_official	381:5460fc57b6e4	1229	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	1230	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	1231
mbed_official	381:5460fc57b6e4	1232	return HAL_TIMEOUT;
mbed_official	381:5460fc57b6e4	1233	}
mbed_official	381:5460fc57b6e4	1234	}
mbed_official	381:5460fc57b6e4	1235	}
mbed_official	381:5460fc57b6e4	1236	}
mbed_official	381:5460fc57b6e4	1237	return HAL_OK;
mbed_official	381:5460fc57b6e4	1238	}
mbed_official	381:5460fc57b6e4	1239
mbed_official	381:5460fc57b6e4	1240	/**
mbed_official	381:5460fc57b6e4	1241	* @brief Tx Transfer completed callbacks
mbed_official	381:5460fc57b6e4	1242	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1243	* @retval None
mbed_official	381:5460fc57b6e4	1244	*/
mbed_official	381:5460fc57b6e4	1245	__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1246	{
mbed_official	381:5460fc57b6e4	1247	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	381:5460fc57b6e4	1248	the HAL_UART_TxCpltCallback can be implemented in the user file
mbed_official	381:5460fc57b6e4	1249	*/
mbed_official	381:5460fc57b6e4	1250	}
mbed_official	381:5460fc57b6e4	1251
mbed_official	381:5460fc57b6e4	1252	/**
mbed_official	381:5460fc57b6e4	1253	* @brief Tx Half Transfer completed callbacks.
mbed_official	381:5460fc57b6e4	1254	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1255	* @retval None
mbed_official	381:5460fc57b6e4	1256	*/
mbed_official	381:5460fc57b6e4	1257	__weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1258	{
mbed_official	381:5460fc57b6e4	1259	/* NOTE: This function should not be modified, when the callback is needed,
mbed_official	381:5460fc57b6e4	1260	the HAL_UART_TxHalfCpltCallback can be implemented in the user file
mbed_official	381:5460fc57b6e4	1261	*/
mbed_official	381:5460fc57b6e4	1262	}
mbed_official	381:5460fc57b6e4	1263
mbed_official	381:5460fc57b6e4	1264	/**
mbed_official	381:5460fc57b6e4	1265	* @brief Rx Transfer completed callbacks
mbed_official	381:5460fc57b6e4	1266	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1267	* @retval None
mbed_official	381:5460fc57b6e4	1268	*/
mbed_official	381:5460fc57b6e4	1269	__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1270	{
mbed_official	381:5460fc57b6e4	1271	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	381:5460fc57b6e4	1272	the HAL_UART_RxCpltCallback can be implemented in the user file
mbed_official	381:5460fc57b6e4	1273	*/
mbed_official	381:5460fc57b6e4	1274	}
mbed_official	381:5460fc57b6e4	1275
mbed_official	381:5460fc57b6e4	1276	/**
mbed_official	381:5460fc57b6e4	1277	* @brief Rx Half Transfer completed callbacks.
mbed_official	381:5460fc57b6e4	1278	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1279	* @retval None
mbed_official	381:5460fc57b6e4	1280	*/
mbed_official	381:5460fc57b6e4	1281	__weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1282	{
mbed_official	381:5460fc57b6e4	1283	/* NOTE: This function should not be modified, when the callback is needed,
mbed_official	381:5460fc57b6e4	1284	the HAL_UART_RxHalfCpltCallback can be implemented in the user file
mbed_official	381:5460fc57b6e4	1285	*/
mbed_official	381:5460fc57b6e4	1286	}
mbed_official	381:5460fc57b6e4	1287
mbed_official	381:5460fc57b6e4	1288	/**
mbed_official	381:5460fc57b6e4	1289	* @brief UART error callbacks
mbed_official	381:5460fc57b6e4	1290	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1291	* @retval None
mbed_official	381:5460fc57b6e4	1292	*/
mbed_official	381:5460fc57b6e4	1293	__weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1294	{
mbed_official	381:5460fc57b6e4	1295	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	381:5460fc57b6e4	1296	the HAL_UART_ErrorCallback can be implemented in the user file
mbed_official	381:5460fc57b6e4	1297	*/
mbed_official	381:5460fc57b6e4	1298	}
mbed_official	381:5460fc57b6e4	1299
mbed_official	381:5460fc57b6e4	1300	/**
mbed_official	381:5460fc57b6e4	1301	* @brief UART wakeup from Stop mode callback
mbed_official	381:5460fc57b6e4	1302	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1303	* @retval None
mbed_official	381:5460fc57b6e4	1304	*/
mbed_official	381:5460fc57b6e4	1305	__weak void HAL_UART_WakeupCallback(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1306	{
mbed_official	381:5460fc57b6e4	1307	/* NOTE : This function should not be modified, when the callback is needed,
mbed_official	381:5460fc57b6e4	1308	the HAL_UART_WakeupCallback can be implemented in the user file
mbed_official	381:5460fc57b6e4	1309	*/
mbed_official	381:5460fc57b6e4	1310	}
mbed_official	381:5460fc57b6e4	1311
mbed_official	381:5460fc57b6e4	1312	/**
mbed_official	381:5460fc57b6e4	1313	* @}
mbed_official	381:5460fc57b6e4	1314	*/
mbed_official	381:5460fc57b6e4	1315
mbed_official	381:5460fc57b6e4	1316	/** @defgroup UART_Exported_Functions_Group3 Peripheral Control functions
mbed_official	381:5460fc57b6e4	1317	* @brief UART control functions
mbed_official	381:5460fc57b6e4	1318	*
mbed_official	381:5460fc57b6e4	1319	@verbatim
mbed_official	381:5460fc57b6e4	1320	===============================================================================
mbed_official	381:5460fc57b6e4	1321	##### Peripheral Control functions #####
mbed_official	381:5460fc57b6e4	1322	===============================================================================
mbed_official	381:5460fc57b6e4	1323	[..]
mbed_official	381:5460fc57b6e4	1324	This subsection provides a set of functions allowing to control the UART.
mbed_official	381:5460fc57b6e4	1325	(+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
mbed_official	381:5460fc57b6e4	1326	(+) HAL_MultiProcessor_DisableMuteMode() API disables mute mode
mbed_official	381:5460fc57b6e4	1327	(+) HAL_MultiProcessor_EnterMuteMode() API enters mute mode
mbed_official	381:5460fc57b6e4	1328	(+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
mbed_official	381:5460fc57b6e4	1329	(+) UART_SetConfig() API configures the UART peripheral
mbed_official	381:5460fc57b6e4	1330	(+) UART_AdvFeatureConfig() API optionally configures the UART advanced features
mbed_official	381:5460fc57b6e4	1331	(+) UART_CheckIdleState() API ensures that TEACK and/or REACK are set after initialization
mbed_official	381:5460fc57b6e4	1332	(+) UART_Wakeup_AddressConfig() API configures the wake-up from stop mode parameters
mbed_official	381:5460fc57b6e4	1333	(+) HAL_HalfDuplex_EnableTransmitter() API disables receiver and enables transmitter
mbed_official	381:5460fc57b6e4	1334	(+) HAL_HalfDuplex_EnableReceiver() API disables transmitter and enables receiver
mbed_official	381:5460fc57b6e4	1335	(+) HAL_LIN_SendBreak() API transmits the break characters
mbed_official	381:5460fc57b6e4	1336	@endverbatim
mbed_official	381:5460fc57b6e4	1337	* @{
mbed_official	381:5460fc57b6e4	1338	*/
mbed_official	381:5460fc57b6e4	1339
mbed_official	381:5460fc57b6e4	1340	/**
mbed_official	381:5460fc57b6e4	1341	* @brief Enable UART in mute mode (doesn't mean UART enters mute mode;
mbed_official	381:5460fc57b6e4	1342	* to enter mute mode, HAL_MultiProcessor_EnterMuteMode() API must be called)
mbed_official	381:5460fc57b6e4	1343	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1344	* @retval HAL status
mbed_official	381:5460fc57b6e4	1345	*/
mbed_official	381:5460fc57b6e4	1346	HAL_StatusTypeDef HAL_MultiProcessor_EnableMuteMode(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1347	{
mbed_official	381:5460fc57b6e4	1348	/* Process Locked */
mbed_official	381:5460fc57b6e4	1349	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	1350
mbed_official	381:5460fc57b6e4	1351	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	1352
mbed_official	381:5460fc57b6e4	1353	/* Enable USART mute mode by setting the MME bit in the CR1 register */
mbed_official	381:5460fc57b6e4	1354	huart->Instance->CR1 \|= USART_CR1_MME;
mbed_official	381:5460fc57b6e4	1355
mbed_official	381:5460fc57b6e4	1356	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1357
mbed_official	381:5460fc57b6e4	1358	return (UART_CheckIdleState(huart));
mbed_official	381:5460fc57b6e4	1359	}
mbed_official	381:5460fc57b6e4	1360
mbed_official	381:5460fc57b6e4	1361	/**
mbed_official	381:5460fc57b6e4	1362	* @brief Disable UART mute mode (doesn't mean it actually wakes up the software,
mbed_official	381:5460fc57b6e4	1363	* as it may not have been in mute mode at this very moment).
mbed_official	381:5460fc57b6e4	1364	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1365	* @retval HAL status
mbed_official	381:5460fc57b6e4	1366	*/
mbed_official	381:5460fc57b6e4	1367	HAL_StatusTypeDef HAL_MultiProcessor_DisableMuteMode(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1368	{
mbed_official	381:5460fc57b6e4	1369	/* Process Locked */
mbed_official	381:5460fc57b6e4	1370	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	1371
mbed_official	381:5460fc57b6e4	1372	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	1373
mbed_official	381:5460fc57b6e4	1374	/* Disable USART mute mode by clearing the MME bit in the CR1 register */
mbed_official	381:5460fc57b6e4	1375	huart->Instance->CR1 &= ~(USART_CR1_MME);
mbed_official	381:5460fc57b6e4	1376
mbed_official	381:5460fc57b6e4	1377	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1378
mbed_official	381:5460fc57b6e4	1379	return (UART_CheckIdleState(huart));
mbed_official	381:5460fc57b6e4	1380	}
mbed_official	381:5460fc57b6e4	1381
mbed_official	381:5460fc57b6e4	1382	/**
mbed_official	381:5460fc57b6e4	1383	* @brief Enter UART mute mode (means UART actually enters mute mode).
mbed_official	381:5460fc57b6e4	1384	* To exit from mute mode, HAL_MultiProcessor_DisableMuteMode() API must be called.
mbed_official	381:5460fc57b6e4	1385	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1386	* @retval HAL status
mbed_official	381:5460fc57b6e4	1387	*/
mbed_official	381:5460fc57b6e4	1388	void HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1389	{
mbed_official	381:5460fc57b6e4	1390	__HAL_UART_SEND_REQ(huart, UART_MUTE_MODE_REQUEST);
mbed_official	381:5460fc57b6e4	1391	}
mbed_official	381:5460fc57b6e4	1392
mbed_official	381:5460fc57b6e4	1393	/**
mbed_official	381:5460fc57b6e4	1394	* @brief Configure the UART peripheral
mbed_official	381:5460fc57b6e4	1395	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1396	* @retval None
mbed_official	381:5460fc57b6e4	1397	*/
mbed_official	381:5460fc57b6e4	1398	HAL_StatusTypeDef UART_SetConfig(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1399	{
mbed_official	381:5460fc57b6e4	1400	uint32_t tmpreg = 0x00000000;
mbed_official	381:5460fc57b6e4	1401	UART_ClockSourceTypeDef clocksource = UART_CLOCKSOURCE_UNDEFINED;
mbed_official	381:5460fc57b6e4	1402	uint16_t brrtemp = 0x0000;
mbed_official	381:5460fc57b6e4	1403	uint16_t usartdiv = 0x0000;
mbed_official	381:5460fc57b6e4	1404	HAL_StatusTypeDef ret = HAL_OK;
mbed_official	381:5460fc57b6e4	1405
mbed_official	381:5460fc57b6e4	1406	/* Check the parameters */
mbed_official	381:5460fc57b6e4	1407	assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1408	assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
mbed_official	381:5460fc57b6e4	1409	assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
mbed_official	381:5460fc57b6e4	1410	assert_param(IS_UART_PARITY(huart->Init.Parity));
mbed_official	381:5460fc57b6e4	1411	assert_param(IS_UART_MODE(huart->Init.Mode));
mbed_official	381:5460fc57b6e4	1412	assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
mbed_official	381:5460fc57b6e4	1413	assert_param(IS_UART_ONEBIT_SAMPLING(huart->Init.OneBitSampling));
mbed_official	381:5460fc57b6e4	1414	assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
mbed_official	381:5460fc57b6e4	1415
mbed_official	381:5460fc57b6e4	1416
mbed_official	381:5460fc57b6e4	1417	/-------------------------- USART CR1 Configuration -----------------------/
mbed_official	381:5460fc57b6e4	1418	/* Clear M, PCE, PS, TE, RE and OVER8 bits and configure
mbed_official	381:5460fc57b6e4	1419	* the UART Word Length, Parity, Mode and oversampling:
mbed_official	381:5460fc57b6e4	1420	* set the M bits according to huart->Init.WordLength value
mbed_official	381:5460fc57b6e4	1421	* set PCE and PS bits according to huart->Init.Parity value
mbed_official	381:5460fc57b6e4	1422	* set TE and RE bits according to huart->Init.Mode value
mbed_official	381:5460fc57b6e4	1423	* set OVER8 bit according to huart->Init.OverSampling value */
mbed_official	381:5460fc57b6e4	1424	tmpreg = (uint32_t)huart->Init.WordLength \| huart->Init.Parity \| huart->Init.Mode \| huart->Init.OverSampling ;
mbed_official	381:5460fc57b6e4	1425	MODIFY_REG(huart->Instance->CR1, UART_CR1_FIELDS, tmpreg);
mbed_official	381:5460fc57b6e4	1426
mbed_official	381:5460fc57b6e4	1427	/-------------------------- USART CR2 Configuration -----------------------/
mbed_official	381:5460fc57b6e4	1428	/* Configure the UART Stop Bits: Set STOP[13:12] bits according
mbed_official	381:5460fc57b6e4	1429	* to huart->Init.StopBits value */
mbed_official	381:5460fc57b6e4	1430	MODIFY_REG(huart->Instance->CR2, USART_CR2_STOP, huart->Init.StopBits);
mbed_official	381:5460fc57b6e4	1431
mbed_official	381:5460fc57b6e4	1432	/-------------------------- USART CR3 Configuration -----------------------/
mbed_official	381:5460fc57b6e4	1433	/* Configure
mbed_official	381:5460fc57b6e4	1434	* - UART HardWare Flow Control: set CTSE and RTSE bits according
mbed_official	381:5460fc57b6e4	1435	* to huart->Init.HwFlowCtl value
mbed_official	381:5460fc57b6e4	1436	* - one-bit sampling method versus three samples' majority rule according
mbed_official	381:5460fc57b6e4	1437	* to huart->Init.OneBitSampling */
mbed_official	381:5460fc57b6e4	1438	tmpreg = (uint32_t)huart->Init.HwFlowCtl \| huart->Init.OneBitSampling ;
mbed_official	381:5460fc57b6e4	1439	MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE \| USART_CR3_CTSE \| USART_CR3_ONEBIT), tmpreg);
mbed_official	381:5460fc57b6e4	1440
mbed_official	381:5460fc57b6e4	1441	/-------------------------- USART BRR Configuration -----------------------/
mbed_official	381:5460fc57b6e4	1442	__HAL_UART_GETCLOCKSOURCE(huart, clocksource);
mbed_official	381:5460fc57b6e4	1443
mbed_official	381:5460fc57b6e4	1444	/* Check the Over Sampling to set Baud Rate Register */
mbed_official	381:5460fc57b6e4	1445	if (huart->Init.OverSampling == UART_OVERSAMPLING_8)
mbed_official	381:5460fc57b6e4	1446	{
mbed_official	381:5460fc57b6e4	1447	switch (clocksource)
mbed_official	381:5460fc57b6e4	1448	{
mbed_official	381:5460fc57b6e4	1449	case UART_CLOCKSOURCE_PCLK1:
mbed_official	381:5460fc57b6e4	1450	usartdiv = (uint16_t)(__DIV_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1451	break;
mbed_official	381:5460fc57b6e4	1452	case UART_CLOCKSOURCE_PCLK2:
mbed_official	381:5460fc57b6e4	1453	usartdiv = (uint16_t)(__DIV_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1454	break;
mbed_official	381:5460fc57b6e4	1455	case UART_CLOCKSOURCE_HSI:
mbed_official	381:5460fc57b6e4	1456	usartdiv = (uint16_t)(__DIV_SAMPLING8(HSI_VALUE, huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1457	break;
mbed_official	381:5460fc57b6e4	1458	case UART_CLOCKSOURCE_SYSCLK:
mbed_official	381:5460fc57b6e4	1459	usartdiv = (uint16_t)(__DIV_SAMPLING8(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1460	break;
mbed_official	381:5460fc57b6e4	1461	case UART_CLOCKSOURCE_LSE:
mbed_official	381:5460fc57b6e4	1462	usartdiv = (uint16_t)(__DIV_SAMPLING8(LSE_VALUE, huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1463	break;
mbed_official	381:5460fc57b6e4	1464	case UART_CLOCKSOURCE_UNDEFINED:
mbed_official	381:5460fc57b6e4	1465	default:
mbed_official	381:5460fc57b6e4	1466	ret = HAL_ERROR;
mbed_official	381:5460fc57b6e4	1467	break;
mbed_official	381:5460fc57b6e4	1468	}
mbed_official	381:5460fc57b6e4	1469
mbed_official	381:5460fc57b6e4	1470	brrtemp = usartdiv & 0xFFF0;
mbed_official	381:5460fc57b6e4	1471	brrtemp \|= (uint16_t)((usartdiv & (uint16_t)0x000F) >> 1U);
mbed_official	381:5460fc57b6e4	1472	huart->Instance->BRR = brrtemp;
mbed_official	381:5460fc57b6e4	1473	}
mbed_official	381:5460fc57b6e4	1474	else
mbed_official	381:5460fc57b6e4	1475	{
mbed_official	381:5460fc57b6e4	1476	switch (clocksource)
mbed_official	381:5460fc57b6e4	1477	{
mbed_official	381:5460fc57b6e4	1478	case UART_CLOCKSOURCE_PCLK1:
mbed_official	381:5460fc57b6e4	1479	huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1480	break;
mbed_official	381:5460fc57b6e4	1481	case UART_CLOCKSOURCE_PCLK2:
mbed_official	381:5460fc57b6e4	1482	huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1483	break;
mbed_official	381:5460fc57b6e4	1484	case UART_CLOCKSOURCE_HSI:
mbed_official	381:5460fc57b6e4	1485	huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HSI_VALUE, huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1486	break;
mbed_official	381:5460fc57b6e4	1487	case UART_CLOCKSOURCE_SYSCLK:
mbed_official	381:5460fc57b6e4	1488	huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1489	break;
mbed_official	381:5460fc57b6e4	1490	case UART_CLOCKSOURCE_LSE:
mbed_official	381:5460fc57b6e4	1491	huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(LSE_VALUE, huart->Init.BaudRate));
mbed_official	381:5460fc57b6e4	1492	break;
mbed_official	381:5460fc57b6e4	1493	case UART_CLOCKSOURCE_UNDEFINED:
mbed_official	381:5460fc57b6e4	1494	default:
mbed_official	381:5460fc57b6e4	1495	ret = HAL_ERROR;
mbed_official	381:5460fc57b6e4	1496	break;
mbed_official	381:5460fc57b6e4	1497	}
mbed_official	381:5460fc57b6e4	1498	}
mbed_official	381:5460fc57b6e4	1499
mbed_official	381:5460fc57b6e4	1500	return ret;
mbed_official	381:5460fc57b6e4	1501
mbed_official	381:5460fc57b6e4	1502	}
mbed_official	381:5460fc57b6e4	1503
mbed_official	381:5460fc57b6e4	1504
mbed_official	381:5460fc57b6e4	1505	/**
mbed_official	381:5460fc57b6e4	1506	* @brief Configure the UART peripheral advanced feautures
mbed_official	381:5460fc57b6e4	1507	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1508	* @retval None
mbed_official	381:5460fc57b6e4	1509	*/
mbed_official	381:5460fc57b6e4	1510	void UART_AdvFeatureConfig(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1511	{
mbed_official	381:5460fc57b6e4	1512	/* Check whether the set of advanced features to configure is properly set */
mbed_official	381:5460fc57b6e4	1513	assert_param(IS_UART_ADVFEATURE_INIT(huart->AdvancedInit.AdvFeatureInit));
mbed_official	381:5460fc57b6e4	1514
mbed_official	381:5460fc57b6e4	1515	/* if required, configure TX pin active level inversion */
mbed_official	381:5460fc57b6e4	1516	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_TXINVERT_INIT))
mbed_official	381:5460fc57b6e4	1517	{
mbed_official	381:5460fc57b6e4	1518	assert_param(IS_UART_ADVFEATURE_TXINV(huart->AdvancedInit.TxPinLevelInvert));
mbed_official	381:5460fc57b6e4	1519	MODIFY_REG(huart->Instance->CR2, USART_CR2_TXINV, huart->AdvancedInit.TxPinLevelInvert);
mbed_official	381:5460fc57b6e4	1520	}
mbed_official	381:5460fc57b6e4	1521
mbed_official	381:5460fc57b6e4	1522	/* if required, configure RX pin active level inversion */
mbed_official	381:5460fc57b6e4	1523	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXINVERT_INIT))
mbed_official	381:5460fc57b6e4	1524	{
mbed_official	381:5460fc57b6e4	1525	assert_param(IS_UART_ADVFEATURE_RXINV(huart->AdvancedInit.RxPinLevelInvert));
mbed_official	381:5460fc57b6e4	1526	MODIFY_REG(huart->Instance->CR2, USART_CR2_RXINV, huart->AdvancedInit.RxPinLevelInvert);
mbed_official	381:5460fc57b6e4	1527	}
mbed_official	381:5460fc57b6e4	1528
mbed_official	381:5460fc57b6e4	1529	/* if required, configure data inversion */
mbed_official	381:5460fc57b6e4	1530	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DATAINVERT_INIT))
mbed_official	381:5460fc57b6e4	1531	{
mbed_official	381:5460fc57b6e4	1532	assert_param(IS_UART_ADVFEATURE_DATAINV(huart->AdvancedInit.DataInvert));
mbed_official	381:5460fc57b6e4	1533	MODIFY_REG(huart->Instance->CR2, USART_CR2_DATAINV, huart->AdvancedInit.DataInvert);
mbed_official	381:5460fc57b6e4	1534	}
mbed_official	381:5460fc57b6e4	1535
mbed_official	381:5460fc57b6e4	1536	/* if required, configure RX/TX pins swap */
mbed_official	381:5460fc57b6e4	1537	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_SWAP_INIT))
mbed_official	381:5460fc57b6e4	1538	{
mbed_official	381:5460fc57b6e4	1539	assert_param(IS_UART_ADVFEATURE_SWAP(huart->AdvancedInit.Swap));
mbed_official	381:5460fc57b6e4	1540	MODIFY_REG(huart->Instance->CR2, USART_CR2_SWAP, huart->AdvancedInit.Swap);
mbed_official	381:5460fc57b6e4	1541	}
mbed_official	381:5460fc57b6e4	1542
mbed_official	381:5460fc57b6e4	1543	/* if required, configure RX overrun detection disabling */
mbed_official	381:5460fc57b6e4	1544	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXOVERRUNDISABLE_INIT))
mbed_official	381:5460fc57b6e4	1545	{
mbed_official	381:5460fc57b6e4	1546	assert_param(IS_UART_OVERRUN(huart->AdvancedInit.OverrunDisable));
mbed_official	381:5460fc57b6e4	1547	MODIFY_REG(huart->Instance->CR3, USART_CR3_OVRDIS, huart->AdvancedInit.OverrunDisable);
mbed_official	381:5460fc57b6e4	1548	}
mbed_official	381:5460fc57b6e4	1549
mbed_official	381:5460fc57b6e4	1550	/* if required, configure DMA disabling on reception error */
mbed_official	381:5460fc57b6e4	1551	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DMADISABLEONERROR_INIT))
mbed_official	381:5460fc57b6e4	1552	{
mbed_official	381:5460fc57b6e4	1553	assert_param(IS_UART_ADVFEATURE_DMAONRXERROR(huart->AdvancedInit.DMADisableonRxError));
mbed_official	381:5460fc57b6e4	1554	MODIFY_REG(huart->Instance->CR3, USART_CR3_DDRE, huart->AdvancedInit.DMADisableonRxError);
mbed_official	381:5460fc57b6e4	1555	}
mbed_official	381:5460fc57b6e4	1556
mbed_official	381:5460fc57b6e4	1557	/* if required, configure auto Baud rate detection scheme */
mbed_official	381:5460fc57b6e4	1558	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_AUTOBAUDRATE_INIT))
mbed_official	381:5460fc57b6e4	1559	{
mbed_official	381:5460fc57b6e4	1560	assert_param(IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(huart->Instance));
mbed_official	381:5460fc57b6e4	1561	assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATE(huart->AdvancedInit.AutoBaudRateEnable));
mbed_official	381:5460fc57b6e4	1562	MODIFY_REG(huart->Instance->CR2, USART_CR2_ABREN, huart->AdvancedInit.AutoBaudRateEnable);
mbed_official	381:5460fc57b6e4	1563	/* set auto Baudrate detection parameters if detection is enabled */
mbed_official	381:5460fc57b6e4	1564	if (huart->AdvancedInit.AutoBaudRateEnable == UART_ADVFEATURE_AUTOBAUDRATE_ENABLE)
mbed_official	381:5460fc57b6e4	1565	{
mbed_official	381:5460fc57b6e4	1566	assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATEMODE(huart->AdvancedInit.AutoBaudRateMode));
mbed_official	381:5460fc57b6e4	1567	MODIFY_REG(huart->Instance->CR2, USART_CR2_ABRMODE, huart->AdvancedInit.AutoBaudRateMode);
mbed_official	381:5460fc57b6e4	1568	}
mbed_official	381:5460fc57b6e4	1569	}
mbed_official	381:5460fc57b6e4	1570
mbed_official	381:5460fc57b6e4	1571	/* if required, configure MSB first on communication line */
mbed_official	381:5460fc57b6e4	1572	if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_MSBFIRST_INIT))
mbed_official	381:5460fc57b6e4	1573	{
mbed_official	381:5460fc57b6e4	1574	assert_param(IS_UART_ADVFEATURE_MSBFIRST(huart->AdvancedInit.MSBFirst));
mbed_official	381:5460fc57b6e4	1575	MODIFY_REG(huart->Instance->CR2, USART_CR2_MSBFIRST, huart->AdvancedInit.MSBFirst);
mbed_official	381:5460fc57b6e4	1576	}
mbed_official	381:5460fc57b6e4	1577	}
mbed_official	381:5460fc57b6e4	1578
mbed_official	381:5460fc57b6e4	1579
mbed_official	381:5460fc57b6e4	1580
mbed_official	381:5460fc57b6e4	1581	/**
mbed_official	381:5460fc57b6e4	1582	* @brief Check the UART Idle State
mbed_official	381:5460fc57b6e4	1583	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1584	* @retval HAL status
mbed_official	381:5460fc57b6e4	1585	*/
mbed_official	381:5460fc57b6e4	1586	HAL_StatusTypeDef UART_CheckIdleState(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1587	{
mbed_official	381:5460fc57b6e4	1588	/* Initialize the UART ErrorCode */
mbed_official	381:5460fc57b6e4	1589	huart->ErrorCode = HAL_UART_ERROR_NONE;
mbed_official	381:5460fc57b6e4	1590
mbed_official	381:5460fc57b6e4	1591	/* Check if the Transmitter is enabled */
mbed_official	381:5460fc57b6e4	1592	if((huart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
mbed_official	381:5460fc57b6e4	1593	{
mbed_official	381:5460fc57b6e4	1594	/* Wait until TEACK flag is set */
mbed_official	381:5460fc57b6e4	1595	if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_TEACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official	381:5460fc57b6e4	1596	{
mbed_official	381:5460fc57b6e4	1597	/* Timeout Occured */
mbed_official	381:5460fc57b6e4	1598	return HAL_TIMEOUT;
mbed_official	381:5460fc57b6e4	1599	}
mbed_official	381:5460fc57b6e4	1600	}
mbed_official	381:5460fc57b6e4	1601	/* Check if the Receiver is enabled */
mbed_official	381:5460fc57b6e4	1602	if((huart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
mbed_official	381:5460fc57b6e4	1603	{
mbed_official	381:5460fc57b6e4	1604	/* Wait until REACK flag is set */
mbed_official	381:5460fc57b6e4	1605	if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
mbed_official	381:5460fc57b6e4	1606	{
mbed_official	381:5460fc57b6e4	1607	/* Timeout Occured */
mbed_official	381:5460fc57b6e4	1608	return HAL_TIMEOUT;
mbed_official	381:5460fc57b6e4	1609	}
mbed_official	381:5460fc57b6e4	1610	}
mbed_official	381:5460fc57b6e4	1611
mbed_official	381:5460fc57b6e4	1612	/* Initialize the UART State */
mbed_official	381:5460fc57b6e4	1613	huart->State= HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1614
mbed_official	381:5460fc57b6e4	1615	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	1616	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	1617
mbed_official	381:5460fc57b6e4	1618	return HAL_OK;
mbed_official	381:5460fc57b6e4	1619	}
mbed_official	381:5460fc57b6e4	1620
mbed_official	381:5460fc57b6e4	1621
mbed_official	381:5460fc57b6e4	1622
mbed_official	381:5460fc57b6e4	1623
mbed_official	381:5460fc57b6e4	1624	/**
mbed_official	381:5460fc57b6e4	1625	* @brief Initializes the UART wake-up from stop mode parameters when triggered by address detection.
mbed_official	381:5460fc57b6e4	1626	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1627	* @param WakeUpSelection: UART wake up from stop mode parameters
mbed_official	381:5460fc57b6e4	1628	* @retval HAL status
mbed_official	381:5460fc57b6e4	1629	*/
mbed_official	381:5460fc57b6e4	1630	void UART_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
mbed_official	381:5460fc57b6e4	1631	{
mbed_official	381:5460fc57b6e4	1632	assert_param(IS_UART_ADDRESSLENGTH_DETECT(WakeUpSelection.AddressLength));
mbed_official	381:5460fc57b6e4	1633
mbed_official	381:5460fc57b6e4	1634	/* Set the USART address length */
mbed_official	381:5460fc57b6e4	1635	MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, WakeUpSelection.AddressLength);
mbed_official	381:5460fc57b6e4	1636
mbed_official	381:5460fc57b6e4	1637	/* Set the USART address node */
mbed_official	381:5460fc57b6e4	1638	MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)WakeUpSelection.Address << UART_CR2_ADDRESS_LSB_POS));
mbed_official	381:5460fc57b6e4	1639	}
mbed_official	381:5460fc57b6e4	1640
mbed_official	381:5460fc57b6e4	1641	/**
mbed_official	381:5460fc57b6e4	1642	* @brief Enables the UART transmitter and disables the UART receiver.
mbed_official	381:5460fc57b6e4	1643	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1644	* @retval HAL status
mbed_official	381:5460fc57b6e4	1645	* @retval None
mbed_official	381:5460fc57b6e4	1646	*/
mbed_official	381:5460fc57b6e4	1647	HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1648	{
mbed_official	381:5460fc57b6e4	1649	/* Process Locked */
mbed_official	381:5460fc57b6e4	1650	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	1651	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	1652
mbed_official	381:5460fc57b6e4	1653	/* Clear TE and RE bits */
mbed_official	381:5460fc57b6e4	1654	CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE \| USART_CR1_RE));
mbed_official	381:5460fc57b6e4	1655	/* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
mbed_official	381:5460fc57b6e4	1656	SET_BIT(huart->Instance->CR1, USART_CR1_TE);
mbed_official	381:5460fc57b6e4	1657
mbed_official	381:5460fc57b6e4	1658	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1659	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	1660	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	1661
mbed_official	381:5460fc57b6e4	1662	return HAL_OK;
mbed_official	381:5460fc57b6e4	1663	}
mbed_official	381:5460fc57b6e4	1664
mbed_official	381:5460fc57b6e4	1665	/**
mbed_official	381:5460fc57b6e4	1666	* @brief Enables the UART receiver and disables the UART transmitter.
mbed_official	381:5460fc57b6e4	1667	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1668	* @retval HAL status
mbed_official	381:5460fc57b6e4	1669	*/
mbed_official	381:5460fc57b6e4	1670	HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1671	{
mbed_official	381:5460fc57b6e4	1672	/* Process Locked */
mbed_official	381:5460fc57b6e4	1673	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	1674	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	1675
mbed_official	381:5460fc57b6e4	1676	/* Clear TE and RE bits */
mbed_official	381:5460fc57b6e4	1677	CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE \| USART_CR1_RE));
mbed_official	381:5460fc57b6e4	1678	/* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
mbed_official	381:5460fc57b6e4	1679	SET_BIT(huart->Instance->CR1, USART_CR1_RE);
mbed_official	381:5460fc57b6e4	1680
mbed_official	381:5460fc57b6e4	1681	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1682	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	1683	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	1684
mbed_official	381:5460fc57b6e4	1685	return HAL_OK;
mbed_official	381:5460fc57b6e4	1686	}
mbed_official	381:5460fc57b6e4	1687
mbed_official	381:5460fc57b6e4	1688
mbed_official	381:5460fc57b6e4	1689	/**
mbed_official	381:5460fc57b6e4	1690	* @brief Transmits break characters.
mbed_official	381:5460fc57b6e4	1691	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1692	* @retval HAL status
mbed_official	381:5460fc57b6e4	1693	*/
mbed_official	381:5460fc57b6e4	1694	HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1695	{
mbed_official	381:5460fc57b6e4	1696	/* Check the parameters */
mbed_official	381:5460fc57b6e4	1697	assert_param(IS_UART_INSTANCE(huart->Instance));
mbed_official	381:5460fc57b6e4	1698
mbed_official	381:5460fc57b6e4	1699	/* Process Locked */
mbed_official	381:5460fc57b6e4	1700	__HAL_LOCK(huart);
mbed_official	381:5460fc57b6e4	1701
mbed_official	381:5460fc57b6e4	1702	huart->State = HAL_UART_STATE_BUSY;
mbed_official	381:5460fc57b6e4	1703
mbed_official	381:5460fc57b6e4	1704	/* Send break characters */
mbed_official	381:5460fc57b6e4	1705	huart->Instance->RQR \|= UART_SENDBREAK_REQUEST;
mbed_official	381:5460fc57b6e4	1706
mbed_official	381:5460fc57b6e4	1707	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1708
mbed_official	381:5460fc57b6e4	1709	/* Process Unlocked */
mbed_official	381:5460fc57b6e4	1710	__HAL_UNLOCK(huart);
mbed_official	381:5460fc57b6e4	1711
mbed_official	381:5460fc57b6e4	1712	return HAL_OK;
mbed_official	381:5460fc57b6e4	1713	}
mbed_official	381:5460fc57b6e4	1714
mbed_official	381:5460fc57b6e4	1715
mbed_official	381:5460fc57b6e4	1716	/**
mbed_official	381:5460fc57b6e4	1717	* @}
mbed_official	381:5460fc57b6e4	1718	*/
mbed_official	381:5460fc57b6e4	1719
mbed_official	381:5460fc57b6e4	1720	/** @defgroup UART_Exported_Functions_Group4 Peripheral State and Error functions
mbed_official	381:5460fc57b6e4	1721	* @brief UART Peripheral State functions
mbed_official	381:5460fc57b6e4	1722	*
mbed_official	381:5460fc57b6e4	1723	@verbatim
mbed_official	381:5460fc57b6e4	1724	==============================================================================
mbed_official	381:5460fc57b6e4	1725	##### Peripheral State and Error functions #####
mbed_official	381:5460fc57b6e4	1726	==============================================================================
mbed_official	381:5460fc57b6e4	1727	[..]
mbed_official	381:5460fc57b6e4	1728	This subsection provides functions allowing to :
mbed_official	381:5460fc57b6e4	1729	(+) Returns the UART state.
mbed_official	381:5460fc57b6e4	1730	(+) Returns the UART error code
mbed_official	381:5460fc57b6e4	1731
mbed_official	381:5460fc57b6e4	1732	@endverbatim
mbed_official	381:5460fc57b6e4	1733	* @{
mbed_official	381:5460fc57b6e4	1734	*/
mbed_official	381:5460fc57b6e4	1735
mbed_official	381:5460fc57b6e4	1736	/**
mbed_official	381:5460fc57b6e4	1737	* @brief return the UART state
mbed_official	381:5460fc57b6e4	1738	* @param huart: uart handle
mbed_official	381:5460fc57b6e4	1739	* @retval HAL state
mbed_official	381:5460fc57b6e4	1740	*/
mbed_official	381:5460fc57b6e4	1741	HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1742	{
mbed_official	381:5460fc57b6e4	1743	return huart->State;
mbed_official	381:5460fc57b6e4	1744	}
mbed_official	381:5460fc57b6e4	1745
mbed_official	381:5460fc57b6e4	1746	/**
mbed_official	381:5460fc57b6e4	1747	* @brief Return the UART error code
mbed_official	381:5460fc57b6e4	1748	* @param huart : pointer to a UART_HandleTypeDef structure that contains
mbed_official	381:5460fc57b6e4	1749	* the configuration information for the specified UART.
mbed_official	381:5460fc57b6e4	1750	* @retval UART Error Code
mbed_official	381:5460fc57b6e4	1751	*/
mbed_official	381:5460fc57b6e4	1752	uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1753	{
mbed_official	381:5460fc57b6e4	1754	return huart->ErrorCode;
mbed_official	381:5460fc57b6e4	1755	}
mbed_official	381:5460fc57b6e4	1756	/**
mbed_official	381:5460fc57b6e4	1757	* @}
mbed_official	381:5460fc57b6e4	1758	*/
mbed_official	381:5460fc57b6e4	1759
mbed_official	381:5460fc57b6e4	1760
mbed_official	381:5460fc57b6e4	1761	/**
mbed_official	381:5460fc57b6e4	1762	* @}
mbed_official	381:5460fc57b6e4	1763	*/
mbed_official	381:5460fc57b6e4	1764
mbed_official	381:5460fc57b6e4	1765	/** @defgroup UART_Private_Functions UART Private Functions
mbed_official	381:5460fc57b6e4	1766	* @{
mbed_official	381:5460fc57b6e4	1767	*/
mbed_official	381:5460fc57b6e4	1768	/**
mbed_official	381:5460fc57b6e4	1769	* @brief DMA UART transmit process complete callback
mbed_official	381:5460fc57b6e4	1770	* @param hdma: DMA handle
mbed_official	381:5460fc57b6e4	1771	* @retval None
mbed_official	381:5460fc57b6e4	1772	*/
mbed_official	381:5460fc57b6e4	1773	static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
mbed_official	381:5460fc57b6e4	1774	{
mbed_official	381:5460fc57b6e4	1775	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	381:5460fc57b6e4	1776	huart->TxXferCount = 0;
mbed_official	381:5460fc57b6e4	1777
mbed_official	381:5460fc57b6e4	1778	/* Disable the DMA transfer for transmit request by setting the DMAT bit
mbed_official	381:5460fc57b6e4	1779	in the UART CR3 register */
mbed_official	381:5460fc57b6e4	1780	huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT);
mbed_official	381:5460fc57b6e4	1781
mbed_official	381:5460fc57b6e4	1782	/* Wait for UART TC Flag */
mbed_official	381:5460fc57b6e4	1783	if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, HAL_UART_TXDMA_TIMEOUTVALUE) != HAL_OK)
mbed_official	381:5460fc57b6e4	1784	{
mbed_official	381:5460fc57b6e4	1785	/* Timeout Occured */
mbed_official	381:5460fc57b6e4	1786	huart->State = HAL_UART_STATE_TIMEOUT;
mbed_official	381:5460fc57b6e4	1787	HAL_UART_ErrorCallback(huart);
mbed_official	381:5460fc57b6e4	1788	}
mbed_official	381:5460fc57b6e4	1789	else
mbed_official	381:5460fc57b6e4	1790	{
mbed_official	381:5460fc57b6e4	1791	/* No Timeout */
mbed_official	381:5460fc57b6e4	1792	/* Check if a receive process is ongoing or not */
mbed_official	381:5460fc57b6e4	1793	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	381:5460fc57b6e4	1794	{
mbed_official	381:5460fc57b6e4	1795	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	381:5460fc57b6e4	1796	}
mbed_official	381:5460fc57b6e4	1797	else
mbed_official	381:5460fc57b6e4	1798	{
mbed_official	381:5460fc57b6e4	1799	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1800	}
mbed_official	381:5460fc57b6e4	1801	HAL_UART_TxCpltCallback(huart);
mbed_official	381:5460fc57b6e4	1802	}
mbed_official	381:5460fc57b6e4	1803	}
mbed_official	381:5460fc57b6e4	1804
mbed_official	381:5460fc57b6e4	1805	/**
mbed_official	381:5460fc57b6e4	1806	* @brief DMA UART transmit process half complete callback
mbed_official	381:5460fc57b6e4	1807	* @param hdma : DMA handle
mbed_official	381:5460fc57b6e4	1808	* @retval None
mbed_official	381:5460fc57b6e4	1809	*/
mbed_official	381:5460fc57b6e4	1810	static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official	381:5460fc57b6e4	1811	{
mbed_official	381:5460fc57b6e4	1812	UART_HandleTypeDef* huart = (UART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
mbed_official	381:5460fc57b6e4	1813
mbed_official	381:5460fc57b6e4	1814	HAL_UART_TxHalfCpltCallback(huart);
mbed_official	381:5460fc57b6e4	1815	}
mbed_official	381:5460fc57b6e4	1816
mbed_official	381:5460fc57b6e4	1817	/**
mbed_official	381:5460fc57b6e4	1818	* @brief DMA UART receive process complete callback
mbed_official	381:5460fc57b6e4	1819	* @param hdma: DMA handle
mbed_official	381:5460fc57b6e4	1820	* @retval None
mbed_official	381:5460fc57b6e4	1821	*/
mbed_official	381:5460fc57b6e4	1822	static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
mbed_official	381:5460fc57b6e4	1823	{
mbed_official	381:5460fc57b6e4	1824	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	381:5460fc57b6e4	1825	huart->RxXferCount = 0;
mbed_official	381:5460fc57b6e4	1826
mbed_official	381:5460fc57b6e4	1827	/* Disable the DMA transfer for the receiver request by setting the DMAR bit
mbed_official	381:5460fc57b6e4	1828	in the UART CR3 register */
mbed_official	381:5460fc57b6e4	1829	huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAR);
mbed_official	381:5460fc57b6e4	1830
mbed_official	381:5460fc57b6e4	1831	/* Check if a transmit Process is ongoing or not */
mbed_official	381:5460fc57b6e4	1832	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	381:5460fc57b6e4	1833	{
mbed_official	381:5460fc57b6e4	1834	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	381:5460fc57b6e4	1835	}
mbed_official	381:5460fc57b6e4	1836	else
mbed_official	381:5460fc57b6e4	1837	{
mbed_official	381:5460fc57b6e4	1838	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1839	}
mbed_official	381:5460fc57b6e4	1840	HAL_UART_RxCpltCallback(huart);
mbed_official	381:5460fc57b6e4	1841	}
mbed_official	381:5460fc57b6e4	1842
mbed_official	381:5460fc57b6e4	1843	/**
mbed_official	381:5460fc57b6e4	1844	* @brief DMA UART receive process half complete callback
mbed_official	381:5460fc57b6e4	1845	* @param hdma : DMA handle
mbed_official	381:5460fc57b6e4	1846	* @retval None
mbed_official	381:5460fc57b6e4	1847	*/
mbed_official	381:5460fc57b6e4	1848	static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
mbed_official	381:5460fc57b6e4	1849	{
mbed_official	381:5460fc57b6e4	1850	UART_HandleTypeDef* huart = (UART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
mbed_official	381:5460fc57b6e4	1851
mbed_official	381:5460fc57b6e4	1852	HAL_UART_RxHalfCpltCallback(huart);
mbed_official	381:5460fc57b6e4	1853	}
mbed_official	381:5460fc57b6e4	1854
mbed_official	381:5460fc57b6e4	1855	/**
mbed_official	381:5460fc57b6e4	1856	* @brief DMA UART communication error callback
mbed_official	381:5460fc57b6e4	1857	* @param hdma: DMA handle
mbed_official	381:5460fc57b6e4	1858	* @retval None
mbed_official	381:5460fc57b6e4	1859	*/
mbed_official	381:5460fc57b6e4	1860	static void UART_DMAError(DMA_HandleTypeDef *hdma)
mbed_official	381:5460fc57b6e4	1861	{
mbed_official	381:5460fc57b6e4	1862	UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
mbed_official	381:5460fc57b6e4	1863	huart->RxXferCount = 0;
mbed_official	381:5460fc57b6e4	1864	huart->TxXferCount = 0;
mbed_official	381:5460fc57b6e4	1865	huart->State= HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1866	huart->ErrorCode \|= HAL_UART_ERROR_DMA;
mbed_official	381:5460fc57b6e4	1867	HAL_UART_ErrorCallback(huart);
mbed_official	381:5460fc57b6e4	1868	}
mbed_official	381:5460fc57b6e4	1869
mbed_official	381:5460fc57b6e4	1870	/**
mbed_official	381:5460fc57b6e4	1871	* @brief Send an amount of data in interrupt mode
mbed_official	381:5460fc57b6e4	1872	* Function called under interruption only, once
mbed_official	381:5460fc57b6e4	1873	* interruptions have been enabled by HAL_UART_Transmit_IT()
mbed_official	381:5460fc57b6e4	1874	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1875	* @retval HAL status
mbed_official	381:5460fc57b6e4	1876	*/
mbed_official	381:5460fc57b6e4	1877	static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1878	{
mbed_official	381:5460fc57b6e4	1879	uint16_t* tmp;
mbed_official	381:5460fc57b6e4	1880
mbed_official	381:5460fc57b6e4	1881	if ((huart->State == HAL_UART_STATE_BUSY_TX) \|\| (huart->State == HAL_UART_STATE_BUSY_TX_RX))
mbed_official	381:5460fc57b6e4	1882	{
mbed_official	381:5460fc57b6e4	1883
mbed_official	381:5460fc57b6e4	1884	if(huart->TxXferCount == 0)
mbed_official	381:5460fc57b6e4	1885	{
mbed_official	381:5460fc57b6e4	1886	/* Disable the UART Transmit Data Register Empty Interrupt */
mbed_official	381:5460fc57b6e4	1887	__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
mbed_official	381:5460fc57b6e4	1888
mbed_official	381:5460fc57b6e4	1889	/* Enable the UART Transmit Complete Interrupt */
mbed_official	381:5460fc57b6e4	1890	__HAL_UART_ENABLE_IT(huart, UART_IT_TC);
mbed_official	381:5460fc57b6e4	1891
mbed_official	381:5460fc57b6e4	1892	return HAL_OK;
mbed_official	381:5460fc57b6e4	1893	}
mbed_official	381:5460fc57b6e4	1894	else
mbed_official	381:5460fc57b6e4	1895	{
mbed_official	381:5460fc57b6e4	1896	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	381:5460fc57b6e4	1897	{
mbed_official	381:5460fc57b6e4	1898	tmp = (uint16_t*) huart->pTxBuffPtr;
mbed_official	381:5460fc57b6e4	1899	huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
mbed_official	381:5460fc57b6e4	1900	huart->pTxBuffPtr += 2;
mbed_official	381:5460fc57b6e4	1901	}
mbed_official	381:5460fc57b6e4	1902	else
mbed_official	381:5460fc57b6e4	1903	{
mbed_official	381:5460fc57b6e4	1904	huart->Instance->TDR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0xFF);
mbed_official	381:5460fc57b6e4	1905	}
mbed_official	381:5460fc57b6e4	1906
mbed_official	381:5460fc57b6e4	1907	huart->TxXferCount--;
mbed_official	381:5460fc57b6e4	1908
mbed_official	381:5460fc57b6e4	1909	return HAL_OK;
mbed_official	381:5460fc57b6e4	1910	}
mbed_official	381:5460fc57b6e4	1911	}
mbed_official	381:5460fc57b6e4	1912	else
mbed_official	381:5460fc57b6e4	1913	{
mbed_official	381:5460fc57b6e4	1914	return HAL_BUSY;
mbed_official	381:5460fc57b6e4	1915	}
mbed_official	381:5460fc57b6e4	1916	}
mbed_official	381:5460fc57b6e4	1917
mbed_official	381:5460fc57b6e4	1918
mbed_official	381:5460fc57b6e4	1919	/**
mbed_official	381:5460fc57b6e4	1920	* @brief Wraps up transmission in non blocking mode.
mbed_official	381:5460fc57b6e4	1921	* @param huart: pointer to a UART_HandleTypeDef structure that contains
mbed_official	381:5460fc57b6e4	1922	* the configuration information for the specified UART module.
mbed_official	381:5460fc57b6e4	1923	* @retval HAL status
mbed_official	381:5460fc57b6e4	1924	*/
mbed_official	381:5460fc57b6e4	1925	static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1926	{
mbed_official	381:5460fc57b6e4	1927	/* Disable the UART Transmit Complete Interrupt */
mbed_official	381:5460fc57b6e4	1928	__HAL_UART_DISABLE_IT(huart, UART_IT_TC);
mbed_official	381:5460fc57b6e4	1929
mbed_official	381:5460fc57b6e4	1930	/* Check if a receive process is ongoing or not */
mbed_official	381:5460fc57b6e4	1931	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	381:5460fc57b6e4	1932	{
mbed_official	381:5460fc57b6e4	1933	huart->State = HAL_UART_STATE_BUSY_RX;
mbed_official	381:5460fc57b6e4	1934	}
mbed_official	381:5460fc57b6e4	1935	else
mbed_official	381:5460fc57b6e4	1936	{
mbed_official	381:5460fc57b6e4	1937	/* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	381:5460fc57b6e4	1938	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	381:5460fc57b6e4	1939
mbed_official	381:5460fc57b6e4	1940	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1941	}
mbed_official	381:5460fc57b6e4	1942
mbed_official	381:5460fc57b6e4	1943	HAL_UART_TxCpltCallback(huart);
mbed_official	381:5460fc57b6e4	1944
mbed_official	381:5460fc57b6e4	1945	return HAL_OK;
mbed_official	381:5460fc57b6e4	1946	}
mbed_official	381:5460fc57b6e4	1947
mbed_official	381:5460fc57b6e4	1948
mbed_official	381:5460fc57b6e4	1949	/**
mbed_official	381:5460fc57b6e4	1950	* @brief Receive an amount of data in interrupt mode
mbed_official	381:5460fc57b6e4	1951	* Function called under interruption only, once
mbed_official	381:5460fc57b6e4	1952	* interruptions have been enabled by HAL_UART_Receive_IT()
mbed_official	381:5460fc57b6e4	1953	* @param huart: UART handle
mbed_official	381:5460fc57b6e4	1954	* @retval HAL status
mbed_official	381:5460fc57b6e4	1955	*/
mbed_official	381:5460fc57b6e4	1956	static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
mbed_official	381:5460fc57b6e4	1957	{
mbed_official	381:5460fc57b6e4	1958	uint16_t* tmp;
mbed_official	381:5460fc57b6e4	1959	uint16_t uhMask = huart->Mask;
mbed_official	381:5460fc57b6e4	1960
mbed_official	381:5460fc57b6e4	1961	if((huart->State == HAL_UART_STATE_BUSY_RX) \|\| (huart->State == HAL_UART_STATE_BUSY_TX_RX))
mbed_official	381:5460fc57b6e4	1962	{
mbed_official	381:5460fc57b6e4	1963
mbed_official	381:5460fc57b6e4	1964	if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
mbed_official	381:5460fc57b6e4	1965	{
mbed_official	381:5460fc57b6e4	1966	tmp = (uint16_t*) huart->pRxBuffPtr ;
mbed_official	381:5460fc57b6e4	1967	*tmp = (uint16_t)(huart->Instance->RDR & uhMask);
mbed_official	381:5460fc57b6e4	1968	huart->pRxBuffPtr +=2;
mbed_official	381:5460fc57b6e4	1969	}
mbed_official	381:5460fc57b6e4	1970	else
mbed_official	381:5460fc57b6e4	1971	{
mbed_official	381:5460fc57b6e4	1972	*huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
mbed_official	381:5460fc57b6e4	1973	}
mbed_official	381:5460fc57b6e4	1974
mbed_official	381:5460fc57b6e4	1975	if(--huart->RxXferCount == 0)
mbed_official	381:5460fc57b6e4	1976	{
mbed_official	381:5460fc57b6e4	1977	__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
mbed_official	381:5460fc57b6e4	1978
mbed_official	381:5460fc57b6e4	1979	/* Check if a transmit Process is ongoing or not */
mbed_official	381:5460fc57b6e4	1980	if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
mbed_official	381:5460fc57b6e4	1981	{
mbed_official	381:5460fc57b6e4	1982	huart->State = HAL_UART_STATE_BUSY_TX;
mbed_official	381:5460fc57b6e4	1983	}
mbed_official	381:5460fc57b6e4	1984	else
mbed_official	381:5460fc57b6e4	1985	{
mbed_official	381:5460fc57b6e4	1986	/* Disable the UART Parity Error Interrupt */
mbed_official	381:5460fc57b6e4	1987	__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
mbed_official	381:5460fc57b6e4	1988
mbed_official	381:5460fc57b6e4	1989	/* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
mbed_official	381:5460fc57b6e4	1990	__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
mbed_official	381:5460fc57b6e4	1991
mbed_official	381:5460fc57b6e4	1992	huart->State = HAL_UART_STATE_READY;
mbed_official	381:5460fc57b6e4	1993	}
mbed_official	381:5460fc57b6e4	1994
mbed_official	381:5460fc57b6e4	1995	HAL_UART_RxCpltCallback(huart);
mbed_official	381:5460fc57b6e4	1996
mbed_official	381:5460fc57b6e4	1997	return HAL_OK;
mbed_official	381:5460fc57b6e4	1998	}
mbed_official	381:5460fc57b6e4	1999
mbed_official	381:5460fc57b6e4	2000	return HAL_OK;
mbed_official	381:5460fc57b6e4	2001	}
mbed_official	381:5460fc57b6e4	2002	else
mbed_official	381:5460fc57b6e4	2003	{
mbed_official	381:5460fc57b6e4	2004	return HAL_BUSY;
mbed_official	381:5460fc57b6e4	2005	}
mbed_official	381:5460fc57b6e4	2006	}
mbed_official	381:5460fc57b6e4	2007
mbed_official	381:5460fc57b6e4	2008	/**
mbed_official	381:5460fc57b6e4	2009	* @}
mbed_official	381:5460fc57b6e4	2010	*/
mbed_official	381:5460fc57b6e4	2011
mbed_official	381:5460fc57b6e4	2012	#endif /* HAL_UART_MODULE_ENABLED */
mbed_official	381:5460fc57b6e4	2013	/**
mbed_official	381:5460fc57b6e4	2014	* @}
mbed_official	381:5460fc57b6e4	2015	*/
mbed_official	381:5460fc57b6e4	2016
mbed_official	381:5460fc57b6e4	2017	/**
mbed_official	381:5460fc57b6e4	2018	* @}
mbed_official	381:5460fc57b6e4	2019	*/
mbed_official	381:5460fc57b6e4	2020
mbed_official	381:5460fc57b6e4	2021	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Library
Created:	15 Nov 2014
Imports:	9
Forks:	0
Commits:	401
Dependents:	0
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Followers:	3

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Stuart Northfield

Tony Engeham

targets/cmsis/TARGET_STM/TARGET_DISCO_F334C8/stm32f3xx_hal_uart.c@381:5460fc57b6e4, 2014-11-03 (annotated)

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