mbed-dev - fix LPC812 PWM

Users » nameless129 » Code » mbed-dev

fix LPC812 PWM

targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_usart.c@0:9b334a45a8ff, 2015-10-01 (annotated)

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

Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

User	Revision	Line number	New contents of line
bogdanm	0:9b334a45a8ff	1	/**
bogdanm	0:9b334a45a8ff	2	******************************************************************************
bogdanm	0:9b334a45a8ff	3	* @file stm32l4xx_hal_usart.c
bogdanm	0:9b334a45a8ff	4	* @author MCD Application Team
bogdanm	0:9b334a45a8ff	5	* @version V1.0.0
bogdanm	0:9b334a45a8ff	6	* @date 26-June-2015
bogdanm	0:9b334a45a8ff	7	* @brief USART HAL module driver.
bogdanm	0:9b334a45a8ff	8	* This file provides firmware functions to manage the following
bogdanm	0:9b334a45a8ff	9	* functionalities of the Universal Synchronous/Asynchronous Receiver Transmitter
bogdanm	0:9b334a45a8ff	10	* Peripheral (USART).
bogdanm	0:9b334a45a8ff	11	* + Initialization and de-initialization functions
bogdanm	0:9b334a45a8ff	12	* + IO operation functions
bogdanm	0:9b334a45a8ff	13	* + Peripheral Control functions
bogdanm	0:9b334a45a8ff	14	* + Peripheral State and Error functions
bogdanm	0:9b334a45a8ff	15	*
bogdanm	0:9b334a45a8ff	16	@verbatim
bogdanm	0:9b334a45a8ff	17	===============================================================================
bogdanm	0:9b334a45a8ff	18	##### How to use this driver #####
bogdanm	0:9b334a45a8ff	19	===============================================================================
bogdanm	0:9b334a45a8ff	20	[..]
bogdanm	0:9b334a45a8ff	21	The USART HAL driver can be used as follows:
bogdanm	0:9b334a45a8ff	22
bogdanm	0:9b334a45a8ff	23	(#) Declare a USART_HandleTypeDef handle structure (eg. USART_HandleTypeDef husart).
bogdanm	0:9b334a45a8ff	24	(#) Initialize the USART low level resources by implementing the HAL_USART_MspInit() API:
bogdanm	0:9b334a45a8ff	25	(++) Enable the USARTx interface clock.
bogdanm	0:9b334a45a8ff	26	(++) USART pins configuration:
bogdanm	0:9b334a45a8ff	27	(+++) Enable the clock for the USART GPIOs.
bogdanm	0:9b334a45a8ff	28	(+++) Configure these USART pins as alternate function pull-up.
bogdanm	0:9b334a45a8ff	29	(++) NVIC configuration if you need to use interrupt process (HAL_USART_Transmit_IT(),
bogdanm	0:9b334a45a8ff	30	HAL_USART_Receive_IT() and HAL_USART_TransmitReceive_IT() APIs):
bogdanm	0:9b334a45a8ff	31	(+++) Configure the USARTx interrupt priority.
bogdanm	0:9b334a45a8ff	32	(+++) Enable the NVIC USART IRQ handle.
bogdanm	0:9b334a45a8ff	33	(++) USART interrupts handling:
bogdanm	0:9b334a45a8ff	34	-@@- The specific USART interrupts (Transmission complete interrupt,
bogdanm	0:9b334a45a8ff	35	RXNE interrupt and Error Interrupts) will be managed using the macros
bogdanm	0:9b334a45a8ff	36	__HAL_USART_ENABLE_IT() and __HAL_USART_DISABLE_IT() inside the transmit and receive process.
bogdanm	0:9b334a45a8ff	37	(++) DMA Configuration if you need to use DMA process (HAL_USART_Transmit_DMA()
bogdanm	0:9b334a45a8ff	38	HAL_USART_Receive_DMA() and HAL_USART_TransmitReceive_DMA() APIs):
bogdanm	0:9b334a45a8ff	39	(+++) Declare a DMA handle structure for the Tx/Rx channel.
bogdanm	0:9b334a45a8ff	40	(+++) Enable the DMAx interface clock.
bogdanm	0:9b334a45a8ff	41	(+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
bogdanm	0:9b334a45a8ff	42	(+++) Configure the DMA Tx/Rx channel.
bogdanm	0:9b334a45a8ff	43	(+++) Associate the initialized DMA handle to the USART DMA Tx/Rx handle.
bogdanm	0:9b334a45a8ff	44	(+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx channel.
bogdanm	0:9b334a45a8ff	45
bogdanm	0:9b334a45a8ff	46	(#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
bogdanm	0:9b334a45a8ff	47	flow control and Mode (Receiver/Transmitter) in the husart handle Init structure.
bogdanm	0:9b334a45a8ff	48
bogdanm	0:9b334a45a8ff	49	(#) Initialize the USART registers by calling the HAL_USART_Init() API:
bogdanm	0:9b334a45a8ff	50	(++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
bogdanm	0:9b334a45a8ff	51	by calling the customized HAL_USART_MspInit(&husart) API.
bogdanm	0:9b334a45a8ff	52
bogdanm	0:9b334a45a8ff	53	[..]
bogdanm	0:9b334a45a8ff	54	(@) To configure and enable/disable the USART to wake up the MCU from stop mode, resort to UART API's
bogdanm	0:9b334a45a8ff	55	HAL_UARTEx_StopModeWakeUpSourceConfig(), HAL_UARTEx_EnableStopMode() and
bogdanm	0:9b334a45a8ff	56	HAL_UARTEx_DisableStopMode() in casting the USART handle to UART type UART_HandleTypeDef.
bogdanm	0:9b334a45a8ff	57
bogdanm	0:9b334a45a8ff	58	@endverbatim
bogdanm	0:9b334a45a8ff	59	******************************************************************************
bogdanm	0:9b334a45a8ff	60	* @attention
bogdanm	0:9b334a45a8ff	61	*
bogdanm	0:9b334a45a8ff	62	* <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm	0:9b334a45a8ff	63	*
bogdanm	0:9b334a45a8ff	64	* Redistribution and use in source and binary forms, with or without modification,
bogdanm	0:9b334a45a8ff	65	* are permitted provided that the following conditions are met:
bogdanm	0:9b334a45a8ff	66	* 1. Redistributions of source code must retain the above copyright notice,
bogdanm	0:9b334a45a8ff	67	* this list of conditions and the following disclaimer.
bogdanm	0:9b334a45a8ff	68	* 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm	0:9b334a45a8ff	69	* this list of conditions and the following disclaimer in the documentation
bogdanm	0:9b334a45a8ff	70	* and/or other materials provided with the distribution.
bogdanm	0:9b334a45a8ff	71	* 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm	0:9b334a45a8ff	72	* may be used to endorse or promote products derived from this software
bogdanm	0:9b334a45a8ff	73	* without specific prior written permission.
bogdanm	0:9b334a45a8ff	74	*
bogdanm	0:9b334a45a8ff	75	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm	0:9b334a45a8ff	76	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm	0:9b334a45a8ff	77	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm	0:9b334a45a8ff	78	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm	0:9b334a45a8ff	79	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm	0:9b334a45a8ff	80	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm	0:9b334a45a8ff	81	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm	0:9b334a45a8ff	82	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm	0:9b334a45a8ff	83	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm	0:9b334a45a8ff	84	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm	0:9b334a45a8ff	85	*
bogdanm	0:9b334a45a8ff	86	******************************************************************************
bogdanm	0:9b334a45a8ff	87	*/
bogdanm	0:9b334a45a8ff	88
bogdanm	0:9b334a45a8ff	89	/* Includes ------------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	90	#include "stm32l4xx_hal.h"
bogdanm	0:9b334a45a8ff	91
bogdanm	0:9b334a45a8ff	92	/** @addtogroup STM32L4xx_HAL_Driver
bogdanm	0:9b334a45a8ff	93	* @{
bogdanm	0:9b334a45a8ff	94	*/
bogdanm	0:9b334a45a8ff	95
bogdanm	0:9b334a45a8ff	96	/** @defgroup USART USART
bogdanm	0:9b334a45a8ff	97	* @brief HAL USART Synchronous module driver
bogdanm	0:9b334a45a8ff	98	* @{
bogdanm	0:9b334a45a8ff	99	*/
bogdanm	0:9b334a45a8ff	100
bogdanm	0:9b334a45a8ff	101	#ifdef HAL_USART_MODULE_ENABLED
bogdanm	0:9b334a45a8ff	102
bogdanm	0:9b334a45a8ff	103	/* Private typedef -----------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	104	/* Private define ------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	105	/** @defgroup USART_Private_Constants USART Private Constants
bogdanm	0:9b334a45a8ff	106	* @{
bogdanm	0:9b334a45a8ff	107	*/
bogdanm	0:9b334a45a8ff	108	#define USART_DUMMY_DATA ((uint16_t) 0xFFFF) /!< USART transmitted dummy data /
bogdanm	0:9b334a45a8ff	109	#define USART_TEACK_REACK_TIMEOUT ((uint32_t) 1000) /!< USART TX or RX enable acknowledge time-out value /
bogdanm	0:9b334a45a8ff	110	#define USART_CR1_FIELDS ((uint32_t)(USART_CR1_M \| USART_CR1_PCE \| USART_CR1_PS \| \
bogdanm	0:9b334a45a8ff	111	USART_CR1_TE \| USART_CR1_RE \| USART_CR1_OVER8)) /!< USART CR1 fields of parameters set by USART_SetConfig API /
bogdanm	0:9b334a45a8ff	112	#define USART_CR2_FIELDS ((uint32_t)(USART_CR2_CPHA \| USART_CR2_CPOL \| \
bogdanm	0:9b334a45a8ff	113	USART_CR2_CLKEN \| USART_CR2_LBCL \| USART_CR2_STOP)) /!< USART CR2 fields of parameters set by USART_SetConfig API /
bogdanm	0:9b334a45a8ff	114	/**
bogdanm	0:9b334a45a8ff	115	* @}
bogdanm	0:9b334a45a8ff	116	*/
bogdanm	0:9b334a45a8ff	117
bogdanm	0:9b334a45a8ff	118	/* Private macros ------------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	119	/* Private variables ---------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	120	/* Private function prototypes -----------------------------------------------*/
bogdanm	0:9b334a45a8ff	121	/** @addtogroup USART_Private_Functions
bogdanm	0:9b334a45a8ff	122	* @{
bogdanm	0:9b334a45a8ff	123	*/
bogdanm	0:9b334a45a8ff	124	static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	125	static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	126	static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	127	static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	128	static void USART_DMAError(DMA_HandleTypeDef *hdma);
bogdanm	0:9b334a45a8ff	129	static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
bogdanm	0:9b334a45a8ff	130	static HAL_StatusTypeDef USART_SetConfig(USART_HandleTypeDef *husart);
bogdanm	0:9b334a45a8ff	131	static HAL_StatusTypeDef USART_CheckIdleState(USART_HandleTypeDef *husart);
bogdanm	0:9b334a45a8ff	132	static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart);
bogdanm	0:9b334a45a8ff	133	static HAL_StatusTypeDef USART_EndTransmit_IT(USART_HandleTypeDef *husart);
bogdanm	0:9b334a45a8ff	134	static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart);
bogdanm	0:9b334a45a8ff	135	static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart);
bogdanm	0:9b334a45a8ff	136	/**
bogdanm	0:9b334a45a8ff	137	* @}
bogdanm	0:9b334a45a8ff	138	*/
bogdanm	0:9b334a45a8ff	139
bogdanm	0:9b334a45a8ff	140	/* Exported functions --------------------------------------------------------*/
bogdanm	0:9b334a45a8ff	141
bogdanm	0:9b334a45a8ff	142	/** @defgroup USART_Exported_Functions USART Exported Functions
bogdanm	0:9b334a45a8ff	143	* @{
bogdanm	0:9b334a45a8ff	144	*/
bogdanm	0:9b334a45a8ff	145
bogdanm	0:9b334a45a8ff	146	/** @defgroup USART_Exported_Functions_Group1 Initialization and de-initialization functions
bogdanm	0:9b334a45a8ff	147	* @brief Initialization and Configuration functions
bogdanm	0:9b334a45a8ff	148	*
bogdanm	0:9b334a45a8ff	149	@verbatim
bogdanm	0:9b334a45a8ff	150	===============================================================================
bogdanm	0:9b334a45a8ff	151	##### Initialization and Configuration functions #####
bogdanm	0:9b334a45a8ff	152	===============================================================================
bogdanm	0:9b334a45a8ff	153	[..]
bogdanm	0:9b334a45a8ff	154	This subsection provides a set of functions allowing to initialize the USART
bogdanm	0:9b334a45a8ff	155	in asynchronous and in synchronous modes.
bogdanm	0:9b334a45a8ff	156	(+) For the asynchronous mode only these parameters can be configured:
bogdanm	0:9b334a45a8ff	157	(++) Baud Rate
bogdanm	0:9b334a45a8ff	158	(++) Word Length
bogdanm	0:9b334a45a8ff	159	(++) Stop Bit
bogdanm	0:9b334a45a8ff	160	(++) Parity: If the parity is enabled, then the MSB bit of the data written
bogdanm	0:9b334a45a8ff	161	in the data register is transmitted but is changed by the parity bit.
bogdanm	0:9b334a45a8ff	162	Depending on the frame length defined by the M1 and M0 bits (7-bit,
bogdanm	0:9b334a45a8ff	163	8-bit or 9-bit), the possible USART frame formats are as listed in the
bogdanm	0:9b334a45a8ff	164	following table:
bogdanm	0:9b334a45a8ff	165
bogdanm	0:9b334a45a8ff	166	(+++) Table 1. USART frame format.
bogdanm	0:9b334a45a8ff	167	(+++) +-----------------------------------------------------------------------+
bogdanm	0:9b334a45a8ff	168	(+++) \| M1 bit \| M0 bit \| PCE bit \| USART frame \|
bogdanm	0:9b334a45a8ff	169	(+++) \|---------\|---------\|-----------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	170	(+++) \| 0 \| 0 \| 0 \| \| SB \| 8 bit data \| STB \| \|
bogdanm	0:9b334a45a8ff	171	(+++) \|---------\|---------\|-----------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	172	(+++) \| 0 \| 0 \| 1 \| \| SB \| 7 bit data \| PB \| STB \| \|
bogdanm	0:9b334a45a8ff	173	(+++) \|---------\|---------\|-----------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	174	(+++) \| 0 \| 1 \| 0 \| \| SB \| 9 bit data \| STB \| \|
bogdanm	0:9b334a45a8ff	175	(+++) \|---------\|---------\|-----------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	176	(+++) \| 0 \| 1 \| 1 \| \| SB \| 8 bit data \| PB \| STB \| \|
bogdanm	0:9b334a45a8ff	177	(+++) \|---------\|---------\|-----------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	178	(+++) \| 1 \| 0 \| 0 \| \| SB \| 7 bit data \| STB \| \|
bogdanm	0:9b334a45a8ff	179	(+++) \|---------\|---------\|-----------\|---------------------------------------\|
bogdanm	0:9b334a45a8ff	180	(+++) \| 1 \| 0 \| 1 \| \| SB \| 6 bit data \| PB \| STB \| \|
bogdanm	0:9b334a45a8ff	181	(+++) +-----------------------------------------------------------------------+
bogdanm	0:9b334a45a8ff	182	(++) USART polarity
bogdanm	0:9b334a45a8ff	183	(++) USART phase
bogdanm	0:9b334a45a8ff	184	(++) USART LastBit
bogdanm	0:9b334a45a8ff	185	(++) Receiver/transmitter modes
bogdanm	0:9b334a45a8ff	186
bogdanm	0:9b334a45a8ff	187	[..]
bogdanm	0:9b334a45a8ff	188	The HAL_USART_Init() function follows the USART synchronous configuration
bogdanm	0:9b334a45a8ff	189	procedure (details for the procedure are available in reference manual).
bogdanm	0:9b334a45a8ff	190
bogdanm	0:9b334a45a8ff	191	@endverbatim
bogdanm	0:9b334a45a8ff	192	* @{
bogdanm	0:9b334a45a8ff	193	*/
bogdanm	0:9b334a45a8ff	194
bogdanm	0:9b334a45a8ff	195	/**
bogdanm	0:9b334a45a8ff	196	* @brief Initializes the USART mode according to the specified
bogdanm	0:9b334a45a8ff	197	* parameters in the USART_InitTypeDef and initialize the associated handle.
bogdanm	0:9b334a45a8ff	198	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	199	* @retval HAL status
bogdanm	0:9b334a45a8ff	200	*/
bogdanm	0:9b334a45a8ff	201	HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	202	{
bogdanm	0:9b334a45a8ff	203	/* Check the USART handle allocation */
bogdanm	0:9b334a45a8ff	204	if(husart == NULL)
bogdanm	0:9b334a45a8ff	205	{
bogdanm	0:9b334a45a8ff	206	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	207	}
bogdanm	0:9b334a45a8ff	208
bogdanm	0:9b334a45a8ff	209	/* Check the parameters */
bogdanm	0:9b334a45a8ff	210	assert_param(IS_USART_INSTANCE(husart->Instance));
bogdanm	0:9b334a45a8ff	211
bogdanm	0:9b334a45a8ff	212	if(husart->State == HAL_USART_STATE_RESET)
bogdanm	0:9b334a45a8ff	213	{
bogdanm	0:9b334a45a8ff	214	/* Allocate lock resource and initialize it */
bogdanm	0:9b334a45a8ff	215	husart->Lock = HAL_UNLOCKED;
bogdanm	0:9b334a45a8ff	216
bogdanm	0:9b334a45a8ff	217	/* Init the low level hardware : GPIO, CLOCK */
bogdanm	0:9b334a45a8ff	218	HAL_USART_MspInit(husart);
bogdanm	0:9b334a45a8ff	219	}
bogdanm	0:9b334a45a8ff	220
bogdanm	0:9b334a45a8ff	221	husart->State = HAL_USART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	222
bogdanm	0:9b334a45a8ff	223	/* Disable the Peripheral */
bogdanm	0:9b334a45a8ff	224	__HAL_USART_DISABLE(husart);
bogdanm	0:9b334a45a8ff	225
bogdanm	0:9b334a45a8ff	226	/* Set the Usart Communication parameters */
bogdanm	0:9b334a45a8ff	227	if (USART_SetConfig(husart) == HAL_ERROR)
bogdanm	0:9b334a45a8ff	228	{
bogdanm	0:9b334a45a8ff	229	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	230	}
bogdanm	0:9b334a45a8ff	231
bogdanm	0:9b334a45a8ff	232	/* In Synchronous mode, the following bits must be kept cleared:
bogdanm	0:9b334a45a8ff	233	- LINEN bit in the USART_CR2 register
bogdanm	0:9b334a45a8ff	234	- HDSEL, SCEN and IREN bits in the USART_CR3 register.*/
bogdanm	0:9b334a45a8ff	235	husart->Instance->CR2 &= ~USART_CR2_LINEN;
bogdanm	0:9b334a45a8ff	236	husart->Instance->CR3 &= ~(USART_CR3_SCEN \| USART_CR3_HDSEL \| USART_CR3_IREN);
bogdanm	0:9b334a45a8ff	237
bogdanm	0:9b334a45a8ff	238	/* Enable the Peripheral */
bogdanm	0:9b334a45a8ff	239	__HAL_USART_ENABLE(husart);
bogdanm	0:9b334a45a8ff	240
bogdanm	0:9b334a45a8ff	241	/* TEACK and/or REACK to check before moving husart->State to Ready */
bogdanm	0:9b334a45a8ff	242	return (USART_CheckIdleState(husart));
bogdanm	0:9b334a45a8ff	243	}
bogdanm	0:9b334a45a8ff	244
bogdanm	0:9b334a45a8ff	245	/**
bogdanm	0:9b334a45a8ff	246	* @brief DeInitialize the USART peripheral.
bogdanm	0:9b334a45a8ff	247	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	248	* @retval HAL status
bogdanm	0:9b334a45a8ff	249	*/
bogdanm	0:9b334a45a8ff	250	HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	251	{
bogdanm	0:9b334a45a8ff	252	/* Check the USART handle allocation */
bogdanm	0:9b334a45a8ff	253	if(husart == NULL)
bogdanm	0:9b334a45a8ff	254	{
bogdanm	0:9b334a45a8ff	255	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	256	}
bogdanm	0:9b334a45a8ff	257
bogdanm	0:9b334a45a8ff	258	/* Check the parameters */
bogdanm	0:9b334a45a8ff	259	assert_param(IS_USART_INSTANCE(husart->Instance));
bogdanm	0:9b334a45a8ff	260
bogdanm	0:9b334a45a8ff	261	husart->State = HAL_USART_STATE_BUSY;
bogdanm	0:9b334a45a8ff	262
bogdanm	0:9b334a45a8ff	263	husart->Instance->CR1 = 0x0;
bogdanm	0:9b334a45a8ff	264	husart->Instance->CR2 = 0x0;
bogdanm	0:9b334a45a8ff	265	husart->Instance->CR3 = 0x0;
bogdanm	0:9b334a45a8ff	266
bogdanm	0:9b334a45a8ff	267	/* DeInit the low level hardware */
bogdanm	0:9b334a45a8ff	268	HAL_USART_MspDeInit(husart);
bogdanm	0:9b334a45a8ff	269
bogdanm	0:9b334a45a8ff	270	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	271	husart->State = HAL_USART_STATE_RESET;
bogdanm	0:9b334a45a8ff	272
bogdanm	0:9b334a45a8ff	273	/* Process Unlock */
bogdanm	0:9b334a45a8ff	274	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	275
bogdanm	0:9b334a45a8ff	276	return HAL_OK;
bogdanm	0:9b334a45a8ff	277	}
bogdanm	0:9b334a45a8ff	278
bogdanm	0:9b334a45a8ff	279	/**
bogdanm	0:9b334a45a8ff	280	* @brief Initialize the USART MSP.
bogdanm	0:9b334a45a8ff	281	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	282	* @retval None
bogdanm	0:9b334a45a8ff	283	*/
bogdanm	0:9b334a45a8ff	284	__weak void HAL_USART_MspInit(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	285	{
bogdanm	0:9b334a45a8ff	286	/* NOTE : This function should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	287	the HAL_USART_MspInit can be implemented in the user file
bogdanm	0:9b334a45a8ff	288	*/
bogdanm	0:9b334a45a8ff	289	}
bogdanm	0:9b334a45a8ff	290
bogdanm	0:9b334a45a8ff	291	/**
bogdanm	0:9b334a45a8ff	292	* @brief DeInitialize the USART MSP.
bogdanm	0:9b334a45a8ff	293	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	294	* @retval None
bogdanm	0:9b334a45a8ff	295	*/
bogdanm	0:9b334a45a8ff	296	__weak void HAL_USART_MspDeInit(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	297	{
bogdanm	0:9b334a45a8ff	298	/* NOTE : This function should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	299	the HAL_USART_MspDeInit can be implemented in the user file
bogdanm	0:9b334a45a8ff	300	*/
bogdanm	0:9b334a45a8ff	301	}
bogdanm	0:9b334a45a8ff	302
bogdanm	0:9b334a45a8ff	303	/**
bogdanm	0:9b334a45a8ff	304	* @}
bogdanm	0:9b334a45a8ff	305	*/
bogdanm	0:9b334a45a8ff	306
bogdanm	0:9b334a45a8ff	307	/** @defgroup USART_Exported_Functions_Group2 IO operation functions
bogdanm	0:9b334a45a8ff	308	* @brief USART Transmit and Receive functions
bogdanm	0:9b334a45a8ff	309	*
bogdanm	0:9b334a45a8ff	310	@verbatim
bogdanm	0:9b334a45a8ff	311	===============================================================================
bogdanm	0:9b334a45a8ff	312	##### IO operation functions #####
bogdanm	0:9b334a45a8ff	313	===============================================================================
bogdanm	0:9b334a45a8ff	314	[..] This subsection provides a set of functions allowing to manage the USART synchronous
bogdanm	0:9b334a45a8ff	315	data transfers.
bogdanm	0:9b334a45a8ff	316
bogdanm	0:9b334a45a8ff	317	[..] The USART supports master mode only: it cannot receive or send data related to an input
bogdanm	0:9b334a45a8ff	318	clock (SCLK is always an output).
bogdanm	0:9b334a45a8ff	319
bogdanm	0:9b334a45a8ff	320	(#) There are two modes of transfer:
bogdanm	0:9b334a45a8ff	321	(++) Blocking mode: The communication is performed in polling mode.
bogdanm	0:9b334a45a8ff	322	The HAL status of all data processing is returned by the same function
bogdanm	0:9b334a45a8ff	323	after finishing transfer.
bogdanm	0:9b334a45a8ff	324	(++) No-Blocking mode: The communication is performed using Interrupts
bogdanm	0:9b334a45a8ff	325	or DMA, These API's return the HAL status.
bogdanm	0:9b334a45a8ff	326	The end of the data processing will be indicated through the
bogdanm	0:9b334a45a8ff	327	dedicated USART IRQ when using Interrupt mode or the DMA IRQ when
bogdanm	0:9b334a45a8ff	328	using DMA mode.
bogdanm	0:9b334a45a8ff	329	The HAL_USART_TxCpltCallback(), HAL_USART_RxCpltCallback() and HAL_USART_TxRxCpltCallback() user callbacks
bogdanm	0:9b334a45a8ff	330	will be executed respectively at the end of the transmit or Receive process
bogdanm	0:9b334a45a8ff	331	The HAL_USART_ErrorCallback()user callback will be executed when a communication error is detected
bogdanm	0:9b334a45a8ff	332
bogdanm	0:9b334a45a8ff	333	(#) Blocking mode API's are :
bogdanm	0:9b334a45a8ff	334	(++) HAL_USART_Transmit()in simplex mode
bogdanm	0:9b334a45a8ff	335	(++) HAL_USART_Receive() in full duplex receive only
bogdanm	0:9b334a45a8ff	336	(++) HAL_USART_TransmitReceive() in full duplex mode
bogdanm	0:9b334a45a8ff	337
bogdanm	0:9b334a45a8ff	338	(#) Non-Blocking mode API's with Interrupt are :
bogdanm	0:9b334a45a8ff	339	(++) HAL_USART_Transmit_IT()in simplex mode
bogdanm	0:9b334a45a8ff	340	(++) HAL_USART_Receive_IT() in full duplex receive only
bogdanm	0:9b334a45a8ff	341	(++) HAL_USART_TransmitReceive_IT()in full duplex mode
bogdanm	0:9b334a45a8ff	342	(++) HAL_USART_IRQHandler()
bogdanm	0:9b334a45a8ff	343
bogdanm	0:9b334a45a8ff	344	(#) No-Blocking mode API's with DMA are :
bogdanm	0:9b334a45a8ff	345	(++) HAL_USART_Transmit_DMA()in simplex mode
bogdanm	0:9b334a45a8ff	346	(++) HAL_USART_Receive_DMA() in full duplex receive only
bogdanm	0:9b334a45a8ff	347	(++) HAL_USART_TransmitReceive_DMA() in full duplex mode
bogdanm	0:9b334a45a8ff	348	(++) HAL_USART_DMAPause()
bogdanm	0:9b334a45a8ff	349	(++) HAL_USART_DMAResume()
bogdanm	0:9b334a45a8ff	350	(++) HAL_USART_DMAStop()
bogdanm	0:9b334a45a8ff	351
bogdanm	0:9b334a45a8ff	352	(#) A set of Transfer Complete Callbacks are provided in No_Blocking mode:
bogdanm	0:9b334a45a8ff	353	(++) HAL_USART_TxCpltCallback()
bogdanm	0:9b334a45a8ff	354	(++) HAL_USART_RxCpltCallback()
bogdanm	0:9b334a45a8ff	355	(++) HAL_USART_TxHalfCpltCallback()
bogdanm	0:9b334a45a8ff	356	(++) HAL_USART_RxHalfCpltCallback()
bogdanm	0:9b334a45a8ff	357	(++) HAL_USART_ErrorCallback()
bogdanm	0:9b334a45a8ff	358	(++) HAL_USART_TxRxCpltCallback()
bogdanm	0:9b334a45a8ff	359
bogdanm	0:9b334a45a8ff	360	@endverbatim
bogdanm	0:9b334a45a8ff	361	* @{
bogdanm	0:9b334a45a8ff	362	*/
bogdanm	0:9b334a45a8ff	363
bogdanm	0:9b334a45a8ff	364	/**
bogdanm	0:9b334a45a8ff	365	* @brief Simplex send an amount of data in blocking mode.
bogdanm	0:9b334a45a8ff	366	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	367	* @param pTxData: Pointer to data buffer.
bogdanm	0:9b334a45a8ff	368	* @param Size: Amount of data to be sent.
bogdanm	0:9b334a45a8ff	369	* @param Timeout: Timeout duration.
bogdanm	0:9b334a45a8ff	370	* @retval HAL status
bogdanm	0:9b334a45a8ff	371	*/
bogdanm	0:9b334a45a8ff	372	HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef husart, uint8_t pTxData, uint16_t Size, uint32_t Timeout)
bogdanm	0:9b334a45a8ff	373	{
bogdanm	0:9b334a45a8ff	374	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	375
bogdanm	0:9b334a45a8ff	376	if(husart->State == HAL_USART_STATE_READY)
bogdanm	0:9b334a45a8ff	377	{
bogdanm	0:9b334a45a8ff	378	if((pTxData == NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	379	{
bogdanm	0:9b334a45a8ff	380	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	381	}
bogdanm	0:9b334a45a8ff	382
bogdanm	0:9b334a45a8ff	383	/* Process Locked */
bogdanm	0:9b334a45a8ff	384	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	385
bogdanm	0:9b334a45a8ff	386	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	387	husart->State = HAL_USART_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	388
bogdanm	0:9b334a45a8ff	389	husart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	390	husart->TxXferCount = Size;
bogdanm	0:9b334a45a8ff	391
bogdanm	0:9b334a45a8ff	392	/* Check the remaining data to be sent */
bogdanm	0:9b334a45a8ff	393	while(husart->TxXferCount > 0)
bogdanm	0:9b334a45a8ff	394	{
bogdanm	0:9b334a45a8ff	395	husart->TxXferCount--;
bogdanm	0:9b334a45a8ff	396	if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	397	{
bogdanm	0:9b334a45a8ff	398	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	399	}
bogdanm	0:9b334a45a8ff	400	if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE))
bogdanm	0:9b334a45a8ff	401	{
bogdanm	0:9b334a45a8ff	402	tmp = (uint16_t*) pTxData;
bogdanm	0:9b334a45a8ff	403	husart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
bogdanm	0:9b334a45a8ff	404	pTxData += 2;
bogdanm	0:9b334a45a8ff	405	}
bogdanm	0:9b334a45a8ff	406	else
bogdanm	0:9b334a45a8ff	407	{
bogdanm	0:9b334a45a8ff	408	husart->Instance->TDR = (*pTxData++ & (uint8_t)0xFF);
bogdanm	0:9b334a45a8ff	409	}
bogdanm	0:9b334a45a8ff	410	}
bogdanm	0:9b334a45a8ff	411
bogdanm	0:9b334a45a8ff	412	if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	413	{
bogdanm	0:9b334a45a8ff	414	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	415	}
bogdanm	0:9b334a45a8ff	416
bogdanm	0:9b334a45a8ff	417	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	418
bogdanm	0:9b334a45a8ff	419	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	420	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	421
bogdanm	0:9b334a45a8ff	422	return HAL_OK;
bogdanm	0:9b334a45a8ff	423	}
bogdanm	0:9b334a45a8ff	424	else
bogdanm	0:9b334a45a8ff	425	{
bogdanm	0:9b334a45a8ff	426	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	427	}
bogdanm	0:9b334a45a8ff	428	}
bogdanm	0:9b334a45a8ff	429
bogdanm	0:9b334a45a8ff	430	/**
bogdanm	0:9b334a45a8ff	431	* @brief Receive an amount of data in blocking mode.
bogdanm	0:9b334a45a8ff	432	* @note To receive synchronous data, dummy data are simultaneously transmitted.
bogdanm	0:9b334a45a8ff	433	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	434	* @param pRxData: Pointer to data buffer.
bogdanm	0:9b334a45a8ff	435	* @param Size: Amount of data to be received.
bogdanm	0:9b334a45a8ff	436	* @param Timeout: Timeout duration.
bogdanm	0:9b334a45a8ff	437	* @retval HAL status
bogdanm	0:9b334a45a8ff	438	*/
bogdanm	0:9b334a45a8ff	439	HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef husart, uint8_t pRxData, uint16_t Size, uint32_t Timeout)
bogdanm	0:9b334a45a8ff	440	{
bogdanm	0:9b334a45a8ff	441	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	442	uint16_t uhMask;
bogdanm	0:9b334a45a8ff	443
bogdanm	0:9b334a45a8ff	444	if(husart->State == HAL_USART_STATE_READY)
bogdanm	0:9b334a45a8ff	445	{
bogdanm	0:9b334a45a8ff	446	if((pRxData == NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	447	{
bogdanm	0:9b334a45a8ff	448	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	449	}
bogdanm	0:9b334a45a8ff	450	/* Process Locked */
bogdanm	0:9b334a45a8ff	451	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	452
bogdanm	0:9b334a45a8ff	453	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	454	husart->State = HAL_USART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	455
bogdanm	0:9b334a45a8ff	456	husart->RxXferSize = Size;
bogdanm	0:9b334a45a8ff	457	husart->RxXferCount = Size;
bogdanm	0:9b334a45a8ff	458
bogdanm	0:9b334a45a8ff	459	/* Computation of USART mask to apply to RDR register */
bogdanm	0:9b334a45a8ff	460	USART_MASK_COMPUTATION(husart);
bogdanm	0:9b334a45a8ff	461	uhMask = husart->Mask;
bogdanm	0:9b334a45a8ff	462
bogdanm	0:9b334a45a8ff	463	/* as long as data have to be received */
bogdanm	0:9b334a45a8ff	464	while(husart->RxXferCount > 0)
bogdanm	0:9b334a45a8ff	465	{
bogdanm	0:9b334a45a8ff	466	husart->RxXferCount--;
bogdanm	0:9b334a45a8ff	467
bogdanm	0:9b334a45a8ff	468	/* Wait until TC flag is set to send dummy byte in order to generate the
bogdanm	0:9b334a45a8ff	469	* clock for the slave to send data.
bogdanm	0:9b334a45a8ff	470	* Whatever the frame length (7, 8 or 9-bit long), the same dummy value
bogdanm	0:9b334a45a8ff	471	* can be written for all the cases. */
bogdanm	0:9b334a45a8ff	472	if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	473	{
bogdanm	0:9b334a45a8ff	474	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	475	}
bogdanm	0:9b334a45a8ff	476	husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x0FF);
bogdanm	0:9b334a45a8ff	477
bogdanm	0:9b334a45a8ff	478	/* Wait for RXNE Flag */
bogdanm	0:9b334a45a8ff	479	if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	480	{
bogdanm	0:9b334a45a8ff	481	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	482	}
bogdanm	0:9b334a45a8ff	483
bogdanm	0:9b334a45a8ff	484	if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE))
bogdanm	0:9b334a45a8ff	485	{
bogdanm	0:9b334a45a8ff	486	tmp = (uint16_t*) pRxData ;
bogdanm	0:9b334a45a8ff	487	*tmp = (uint16_t)(husart->Instance->RDR & uhMask);
bogdanm	0:9b334a45a8ff	488	pRxData +=2;
bogdanm	0:9b334a45a8ff	489	}
bogdanm	0:9b334a45a8ff	490	else
bogdanm	0:9b334a45a8ff	491	{
bogdanm	0:9b334a45a8ff	492	*pRxData++ = (uint8_t)(husart->Instance->RDR & (uint8_t)uhMask);
bogdanm	0:9b334a45a8ff	493	}
bogdanm	0:9b334a45a8ff	494	}
bogdanm	0:9b334a45a8ff	495
bogdanm	0:9b334a45a8ff	496	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	497
bogdanm	0:9b334a45a8ff	498	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	499	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	500
bogdanm	0:9b334a45a8ff	501	return HAL_OK;
bogdanm	0:9b334a45a8ff	502	}
bogdanm	0:9b334a45a8ff	503	else
bogdanm	0:9b334a45a8ff	504	{
bogdanm	0:9b334a45a8ff	505	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	506	}
bogdanm	0:9b334a45a8ff	507	}
bogdanm	0:9b334a45a8ff	508
bogdanm	0:9b334a45a8ff	509	/**
bogdanm	0:9b334a45a8ff	510	* @brief Full-Duplex Send and Receive an amount of data in blocking mode.
bogdanm	0:9b334a45a8ff	511	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	512	* @param pTxData: pointer to TX data buffer.
bogdanm	0:9b334a45a8ff	513	* @param pRxData: pointer to RX data buffer.
bogdanm	0:9b334a45a8ff	514	* @param Size: amount of data to be sent (same amount to be received).
bogdanm	0:9b334a45a8ff	515	* @param Timeout: Timeout duration.
bogdanm	0:9b334a45a8ff	516	* @retval HAL status
bogdanm	0:9b334a45a8ff	517	*/
bogdanm	0:9b334a45a8ff	518	HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef husart, uint8_t pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout)
bogdanm	0:9b334a45a8ff	519	{
bogdanm	0:9b334a45a8ff	520	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	521	uint16_t uhMask;
bogdanm	0:9b334a45a8ff	522
bogdanm	0:9b334a45a8ff	523	if(husart->State == HAL_USART_STATE_READY)
bogdanm	0:9b334a45a8ff	524	{
bogdanm	0:9b334a45a8ff	525	if((pTxData == NULL) \|\| (pRxData == NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	526	{
bogdanm	0:9b334a45a8ff	527	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	528	}
bogdanm	0:9b334a45a8ff	529	/* Process Locked */
bogdanm	0:9b334a45a8ff	530	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	531
bogdanm	0:9b334a45a8ff	532	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	533	husart->State = HAL_USART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	534
bogdanm	0:9b334a45a8ff	535	husart->RxXferSize = Size;
bogdanm	0:9b334a45a8ff	536	husart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	537	husart->TxXferCount = Size;
bogdanm	0:9b334a45a8ff	538	husart->RxXferCount = Size;
bogdanm	0:9b334a45a8ff	539
bogdanm	0:9b334a45a8ff	540	/* Computation of USART mask to apply to RDR register */
bogdanm	0:9b334a45a8ff	541	USART_MASK_COMPUTATION(husart);
bogdanm	0:9b334a45a8ff	542	uhMask = husart->Mask;
bogdanm	0:9b334a45a8ff	543
bogdanm	0:9b334a45a8ff	544	/* Check the remain data to be sent */
bogdanm	0:9b334a45a8ff	545	while(husart->TxXferCount > 0)
bogdanm	0:9b334a45a8ff	546	{
bogdanm	0:9b334a45a8ff	547	husart->TxXferCount--;
bogdanm	0:9b334a45a8ff	548	husart->RxXferCount--;
bogdanm	0:9b334a45a8ff	549
bogdanm	0:9b334a45a8ff	550	/* Wait until TC flag is set to send data */
bogdanm	0:9b334a45a8ff	551	if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	552	{
bogdanm	0:9b334a45a8ff	553	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	554	}
bogdanm	0:9b334a45a8ff	555	if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE))
bogdanm	0:9b334a45a8ff	556	{
bogdanm	0:9b334a45a8ff	557	tmp = (uint16_t*) pTxData;
bogdanm	0:9b334a45a8ff	558	husart->Instance->TDR = (*tmp & uhMask);
bogdanm	0:9b334a45a8ff	559	pTxData += 2;
bogdanm	0:9b334a45a8ff	560	}
bogdanm	0:9b334a45a8ff	561	else
bogdanm	0:9b334a45a8ff	562	{
bogdanm	0:9b334a45a8ff	563	husart->Instance->TDR = (*pTxData++ & (uint8_t)uhMask);
bogdanm	0:9b334a45a8ff	564	}
bogdanm	0:9b334a45a8ff	565
bogdanm	0:9b334a45a8ff	566	/* Wait for RXNE Flag */
bogdanm	0:9b334a45a8ff	567	if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
bogdanm	0:9b334a45a8ff	568	{
bogdanm	0:9b334a45a8ff	569	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	570	}
bogdanm	0:9b334a45a8ff	571
bogdanm	0:9b334a45a8ff	572	if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE))
bogdanm	0:9b334a45a8ff	573	{
bogdanm	0:9b334a45a8ff	574	tmp = (uint16_t*) pRxData ;
bogdanm	0:9b334a45a8ff	575	*tmp = (uint16_t)(husart->Instance->RDR & uhMask);
bogdanm	0:9b334a45a8ff	576	pRxData +=2;
bogdanm	0:9b334a45a8ff	577	}
bogdanm	0:9b334a45a8ff	578	else
bogdanm	0:9b334a45a8ff	579	{
bogdanm	0:9b334a45a8ff	580	*pRxData++ = (uint8_t)(husart->Instance->RDR & (uint8_t)uhMask);
bogdanm	0:9b334a45a8ff	581	}
bogdanm	0:9b334a45a8ff	582	}
bogdanm	0:9b334a45a8ff	583
bogdanm	0:9b334a45a8ff	584	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	585
bogdanm	0:9b334a45a8ff	586	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	587	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	588
bogdanm	0:9b334a45a8ff	589	return HAL_OK;
bogdanm	0:9b334a45a8ff	590	}
bogdanm	0:9b334a45a8ff	591	else
bogdanm	0:9b334a45a8ff	592	{
bogdanm	0:9b334a45a8ff	593	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	594	}
bogdanm	0:9b334a45a8ff	595	}
bogdanm	0:9b334a45a8ff	596
bogdanm	0:9b334a45a8ff	597	/**
bogdanm	0:9b334a45a8ff	598	* @brief Send an amount of data in interrupt mode.
bogdanm	0:9b334a45a8ff	599	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	600	* @param pTxData: pointer to data buffer.
bogdanm	0:9b334a45a8ff	601	* @param Size: amount of data to be sent.
bogdanm	0:9b334a45a8ff	602	* @retval HAL status
bogdanm	0:9b334a45a8ff	603	*/
bogdanm	0:9b334a45a8ff	604	HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef husart, uint8_t pTxData, uint16_t Size)
bogdanm	0:9b334a45a8ff	605	{
bogdanm	0:9b334a45a8ff	606	if(husart->State == HAL_USART_STATE_READY)
bogdanm	0:9b334a45a8ff	607	{
bogdanm	0:9b334a45a8ff	608	if((pTxData == NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	609	{
bogdanm	0:9b334a45a8ff	610	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	611	}
bogdanm	0:9b334a45a8ff	612
bogdanm	0:9b334a45a8ff	613	/* Process Locked */
bogdanm	0:9b334a45a8ff	614	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	615
bogdanm	0:9b334a45a8ff	616	husart->pTxBuffPtr = pTxData;
bogdanm	0:9b334a45a8ff	617	husart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	618	husart->TxXferCount = Size;
bogdanm	0:9b334a45a8ff	619
bogdanm	0:9b334a45a8ff	620	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	621	husart->State = HAL_USART_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	622
bogdanm	0:9b334a45a8ff	623	/* The USART Error Interrupts: (Frame error, noise error, overrun error)
bogdanm	0:9b334a45a8ff	624	are not managed by the USART Transmit Process to avoid the overrun interrupt
bogdanm	0:9b334a45a8ff	625	when the usart mode is configured for transmit and receive "USART_MODE_TX_RX"
bogdanm	0:9b334a45a8ff	626	to benefit for the frame error and noise interrupts the usart mode should be
bogdanm	0:9b334a45a8ff	627	configured only for transmit "USART_MODE_TX" */
bogdanm	0:9b334a45a8ff	628
bogdanm	0:9b334a45a8ff	629	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	630	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	631
bogdanm	0:9b334a45a8ff	632	/* Enable the USART Transmit Data Register Empty Interrupt */
bogdanm	0:9b334a45a8ff	633	__HAL_USART_ENABLE_IT(husart, USART_IT_TXE);
bogdanm	0:9b334a45a8ff	634
bogdanm	0:9b334a45a8ff	635	return HAL_OK;
bogdanm	0:9b334a45a8ff	636	}
bogdanm	0:9b334a45a8ff	637	else
bogdanm	0:9b334a45a8ff	638	{
bogdanm	0:9b334a45a8ff	639	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	640	}
bogdanm	0:9b334a45a8ff	641	}
bogdanm	0:9b334a45a8ff	642
bogdanm	0:9b334a45a8ff	643	/**
bogdanm	0:9b334a45a8ff	644	* @brief Receive an amount of data in blocking mode.
bogdanm	0:9b334a45a8ff	645	* @note To receive synchronous data, dummy data are simultaneously transmitted.
bogdanm	0:9b334a45a8ff	646	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	647	* @param pRxData: pointer to data buffer.
bogdanm	0:9b334a45a8ff	648	* @param Size: amount of data to be received.
bogdanm	0:9b334a45a8ff	649	* @retval HAL status
bogdanm	0:9b334a45a8ff	650	*/
bogdanm	0:9b334a45a8ff	651	HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef husart, uint8_t pRxData, uint16_t Size)
bogdanm	0:9b334a45a8ff	652	{
bogdanm	0:9b334a45a8ff	653	if(husart->State == HAL_USART_STATE_READY)
bogdanm	0:9b334a45a8ff	654	{
bogdanm	0:9b334a45a8ff	655	if((pRxData == NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	656	{
bogdanm	0:9b334a45a8ff	657	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	658	}
bogdanm	0:9b334a45a8ff	659	/* Process Locked */
bogdanm	0:9b334a45a8ff	660	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	661
bogdanm	0:9b334a45a8ff	662	husart->pRxBuffPtr = pRxData;
bogdanm	0:9b334a45a8ff	663	husart->RxXferSize = Size;
bogdanm	0:9b334a45a8ff	664	husart->RxXferCount = Size;
bogdanm	0:9b334a45a8ff	665
bogdanm	0:9b334a45a8ff	666	USART_MASK_COMPUTATION(husart);
bogdanm	0:9b334a45a8ff	667
bogdanm	0:9b334a45a8ff	668	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	669	husart->State = HAL_USART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	670
bogdanm	0:9b334a45a8ff	671	/* Enable the USART Parity Error Interrupt */
bogdanm	0:9b334a45a8ff	672	__HAL_USART_ENABLE_IT(husart, USART_IT_PE);
bogdanm	0:9b334a45a8ff	673
bogdanm	0:9b334a45a8ff	674	/* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm	0:9b334a45a8ff	675	__HAL_USART_ENABLE_IT(husart, USART_IT_ERR);
bogdanm	0:9b334a45a8ff	676
bogdanm	0:9b334a45a8ff	677	/* Enable the USART Data Register not empty Interrupt */
bogdanm	0:9b334a45a8ff	678	__HAL_USART_ENABLE_IT(husart, USART_IT_RXNE);
bogdanm	0:9b334a45a8ff	679
bogdanm	0:9b334a45a8ff	680	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	681	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	682
bogdanm	0:9b334a45a8ff	683
bogdanm	0:9b334a45a8ff	684	/* Send dummy byte in order to generate the clock for the Slave to send the next data */
bogdanm	0:9b334a45a8ff	685	if(husart->Init.WordLength == USART_WORDLENGTH_9B)
bogdanm	0:9b334a45a8ff	686	{
bogdanm	0:9b334a45a8ff	687	husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x01FF);
bogdanm	0:9b334a45a8ff	688	}
bogdanm	0:9b334a45a8ff	689	else
bogdanm	0:9b334a45a8ff	690	{
bogdanm	0:9b334a45a8ff	691	husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x00FF);
bogdanm	0:9b334a45a8ff	692	}
bogdanm	0:9b334a45a8ff	693
bogdanm	0:9b334a45a8ff	694	return HAL_OK;
bogdanm	0:9b334a45a8ff	695	}
bogdanm	0:9b334a45a8ff	696	else
bogdanm	0:9b334a45a8ff	697	{
bogdanm	0:9b334a45a8ff	698	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	699	}
bogdanm	0:9b334a45a8ff	700	}
bogdanm	0:9b334a45a8ff	701
bogdanm	0:9b334a45a8ff	702	/**
bogdanm	0:9b334a45a8ff	703	* @brief Full-Duplex Send and Receive an amount of data in interrupt mode.
bogdanm	0:9b334a45a8ff	704	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	705	* @param pTxData: pointer to TX data buffer.
bogdanm	0:9b334a45a8ff	706	* @param pRxData: pointer to RX data buffer.
bogdanm	0:9b334a45a8ff	707	* @param Size: amount of data to be sent (same amount to be received).
bogdanm	0:9b334a45a8ff	708	* @retval HAL status
bogdanm	0:9b334a45a8ff	709	*/
bogdanm	0:9b334a45a8ff	710	HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef husart, uint8_t pTxData, uint8_t *pRxData, uint16_t Size)
bogdanm	0:9b334a45a8ff	711	{
bogdanm	0:9b334a45a8ff	712
bogdanm	0:9b334a45a8ff	713	if(husart->State == HAL_USART_STATE_READY)
bogdanm	0:9b334a45a8ff	714	{
bogdanm	0:9b334a45a8ff	715	if((pTxData == NULL) \|\| (pRxData == NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	716	{
bogdanm	0:9b334a45a8ff	717	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	718	}
bogdanm	0:9b334a45a8ff	719	/* Process Locked */
bogdanm	0:9b334a45a8ff	720	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	721
bogdanm	0:9b334a45a8ff	722	husart->pRxBuffPtr = pRxData;
bogdanm	0:9b334a45a8ff	723	husart->RxXferSize = Size;
bogdanm	0:9b334a45a8ff	724	husart->RxXferCount = Size;
bogdanm	0:9b334a45a8ff	725	husart->pTxBuffPtr = pTxData;
bogdanm	0:9b334a45a8ff	726	husart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	727	husart->TxXferCount = Size;
bogdanm	0:9b334a45a8ff	728
bogdanm	0:9b334a45a8ff	729	/* Computation of USART mask to apply to RDR register */
bogdanm	0:9b334a45a8ff	730	USART_MASK_COMPUTATION(husart);
bogdanm	0:9b334a45a8ff	731
bogdanm	0:9b334a45a8ff	732	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	733	husart->State = HAL_USART_STATE_BUSY_TX_RX;
bogdanm	0:9b334a45a8ff	734
bogdanm	0:9b334a45a8ff	735	/* Enable the USART Data Register not empty Interrupt */
bogdanm	0:9b334a45a8ff	736	__HAL_USART_ENABLE_IT(husart, USART_IT_RXNE);
bogdanm	0:9b334a45a8ff	737
bogdanm	0:9b334a45a8ff	738	/* Enable the USART Parity Error Interrupt */
bogdanm	0:9b334a45a8ff	739	__HAL_USART_ENABLE_IT(husart, USART_IT_PE);
bogdanm	0:9b334a45a8ff	740
bogdanm	0:9b334a45a8ff	741	/* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm	0:9b334a45a8ff	742	__HAL_USART_ENABLE_IT(husart, USART_IT_ERR);
bogdanm	0:9b334a45a8ff	743
bogdanm	0:9b334a45a8ff	744	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	745	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	746
bogdanm	0:9b334a45a8ff	747	/* Enable the USART Transmit Data Register Empty Interrupt */
bogdanm	0:9b334a45a8ff	748	__HAL_USART_ENABLE_IT(husart, USART_IT_TXE);
bogdanm	0:9b334a45a8ff	749
bogdanm	0:9b334a45a8ff	750	return HAL_OK;
bogdanm	0:9b334a45a8ff	751	}
bogdanm	0:9b334a45a8ff	752	else
bogdanm	0:9b334a45a8ff	753	{
bogdanm	0:9b334a45a8ff	754	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	755	}
bogdanm	0:9b334a45a8ff	756
bogdanm	0:9b334a45a8ff	757	}
bogdanm	0:9b334a45a8ff	758
bogdanm	0:9b334a45a8ff	759	/**
bogdanm	0:9b334a45a8ff	760	* @brief Send an amount of data in DMA mode.
bogdanm	0:9b334a45a8ff	761	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	762	* @param pTxData: pointer to data buffer.
bogdanm	0:9b334a45a8ff	763	* @param Size: amount of data to be sent.
bogdanm	0:9b334a45a8ff	764	* @retval HAL status
bogdanm	0:9b334a45a8ff	765	*/
bogdanm	0:9b334a45a8ff	766	HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef husart, uint8_t pTxData, uint16_t Size)
bogdanm	0:9b334a45a8ff	767	{
bogdanm	0:9b334a45a8ff	768	uint32_t *tmp;
bogdanm	0:9b334a45a8ff	769
bogdanm	0:9b334a45a8ff	770	if(husart->State == HAL_USART_STATE_READY)
bogdanm	0:9b334a45a8ff	771	{
bogdanm	0:9b334a45a8ff	772	if((pTxData == NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	773	{
bogdanm	0:9b334a45a8ff	774	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	775	}
bogdanm	0:9b334a45a8ff	776	/* Process Locked */
bogdanm	0:9b334a45a8ff	777	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	778
bogdanm	0:9b334a45a8ff	779	husart->pTxBuffPtr = pTxData;
bogdanm	0:9b334a45a8ff	780	husart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	781	husart->TxXferCount = Size;
bogdanm	0:9b334a45a8ff	782
bogdanm	0:9b334a45a8ff	783	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	784	husart->State = HAL_USART_STATE_BUSY_TX;
bogdanm	0:9b334a45a8ff	785
bogdanm	0:9b334a45a8ff	786	/* Set the USART DMA transfer complete callback */
bogdanm	0:9b334a45a8ff	787	husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt;
bogdanm	0:9b334a45a8ff	788
bogdanm	0:9b334a45a8ff	789	/* Set the USART DMA Half transfer complete callback */
bogdanm	0:9b334a45a8ff	790	husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt;
bogdanm	0:9b334a45a8ff	791
bogdanm	0:9b334a45a8ff	792	/* Set the DMA error callback */
bogdanm	0:9b334a45a8ff	793	husart->hdmatx->XferErrorCallback = USART_DMAError;
bogdanm	0:9b334a45a8ff	794
bogdanm	0:9b334a45a8ff	795	/* Enable the USART transmit DMA channel */
bogdanm	0:9b334a45a8ff	796	tmp = (uint32_t*)&pTxData;
bogdanm	0:9b334a45a8ff	797	HAL_DMA_Start_IT(husart->hdmatx, (uint32_t)tmp, (uint32_t)&husart->Instance->TDR, Size);
bogdanm	0:9b334a45a8ff	798
bogdanm	0:9b334a45a8ff	799	/* Clear the TC flag in the ICR register */
bogdanm	0:9b334a45a8ff	800	__HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_TCF);
bogdanm	0:9b334a45a8ff	801
bogdanm	0:9b334a45a8ff	802	/* Enable the DMA transfer for transmit request by setting the DMAT bit
bogdanm	0:9b334a45a8ff	803	in the USART CR3 register */
bogdanm	0:9b334a45a8ff	804	husart->Instance->CR3 \|= USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	805
bogdanm	0:9b334a45a8ff	806	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	807	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	808
bogdanm	0:9b334a45a8ff	809	return HAL_OK;
bogdanm	0:9b334a45a8ff	810	}
bogdanm	0:9b334a45a8ff	811	else
bogdanm	0:9b334a45a8ff	812	{
bogdanm	0:9b334a45a8ff	813	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	814	}
bogdanm	0:9b334a45a8ff	815	}
bogdanm	0:9b334a45a8ff	816
bogdanm	0:9b334a45a8ff	817	/**
bogdanm	0:9b334a45a8ff	818	* @brief Receive an amount of data in DMA mode.
bogdanm	0:9b334a45a8ff	819	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	820	* @param pRxData: pointer to data buffer.
bogdanm	0:9b334a45a8ff	821	* @param Size: amount of data to be received.
bogdanm	0:9b334a45a8ff	822	* @note When the USART parity is enabled (PCE = 1), the received data contain
bogdanm	0:9b334a45a8ff	823	* the parity bit (MSB position).
bogdanm	0:9b334a45a8ff	824	* @note The USART DMA transmit channel must be configured in order to generate the clock for the slave.
bogdanm	0:9b334a45a8ff	825	* @retval HAL status
bogdanm	0:9b334a45a8ff	826	*/
bogdanm	0:9b334a45a8ff	827	HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef husart, uint8_t pRxData, uint16_t Size)
bogdanm	0:9b334a45a8ff	828	{
bogdanm	0:9b334a45a8ff	829	uint32_t *tmp;
bogdanm	0:9b334a45a8ff	830
bogdanm	0:9b334a45a8ff	831	if(husart->State == HAL_USART_STATE_READY)
bogdanm	0:9b334a45a8ff	832	{
bogdanm	0:9b334a45a8ff	833	if((pRxData == NULL ) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	834	{
bogdanm	0:9b334a45a8ff	835	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	836	}
bogdanm	0:9b334a45a8ff	837
bogdanm	0:9b334a45a8ff	838	/* Process Locked */
bogdanm	0:9b334a45a8ff	839	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	840
bogdanm	0:9b334a45a8ff	841	husart->pRxBuffPtr = pRxData;
bogdanm	0:9b334a45a8ff	842	husart->RxXferSize = Size;
bogdanm	0:9b334a45a8ff	843	husart->pTxBuffPtr = pRxData;
bogdanm	0:9b334a45a8ff	844	husart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	845
bogdanm	0:9b334a45a8ff	846	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	847	husart->State = HAL_USART_STATE_BUSY_RX;
bogdanm	0:9b334a45a8ff	848
bogdanm	0:9b334a45a8ff	849	/* Set the USART DMA Rx transfer complete callback */
bogdanm	0:9b334a45a8ff	850	husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt;
bogdanm	0:9b334a45a8ff	851
bogdanm	0:9b334a45a8ff	852	/* Set the USART DMA Half transfer complete callback */
bogdanm	0:9b334a45a8ff	853	husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt;
bogdanm	0:9b334a45a8ff	854
bogdanm	0:9b334a45a8ff	855	/* Set the USART DMA Rx transfer error callback */
bogdanm	0:9b334a45a8ff	856	husart->hdmarx->XferErrorCallback = USART_DMAError;
bogdanm	0:9b334a45a8ff	857
bogdanm	0:9b334a45a8ff	858	/* Enable the USART receive DMA channel */
bogdanm	0:9b334a45a8ff	859	tmp = (uint32_t*)&pRxData;
bogdanm	0:9b334a45a8ff	860	HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->RDR, (uint32_t)tmp, Size);
bogdanm	0:9b334a45a8ff	861
bogdanm	0:9b334a45a8ff	862	/* Enable the USART transmit DMA channel: the transmit channel is used in order
bogdanm	0:9b334a45a8ff	863	to generate in the non-blocking mode the clock to the slave device,
bogdanm	0:9b334a45a8ff	864	this mode isn't a simplex receive mode but a full-duplex receive mode */
bogdanm	0:9b334a45a8ff	865	tmp = (uint32_t*)&pRxData;
bogdanm	0:9b334a45a8ff	866	HAL_DMA_Start_IT(husart->hdmatx, (uint32_t)tmp, (uint32_t)&husart->Instance->TDR, Size);
bogdanm	0:9b334a45a8ff	867
bogdanm	0:9b334a45a8ff	868	/* Enable the DMA transfer for the receiver request by setting the DMAR bit
bogdanm	0:9b334a45a8ff	869	in the USART CR3 register */
bogdanm	0:9b334a45a8ff	870	husart->Instance->CR3 \|= USART_CR3_DMAR;
bogdanm	0:9b334a45a8ff	871
bogdanm	0:9b334a45a8ff	872	/* Enable the DMA transfer for transmit request by setting the DMAT bit
bogdanm	0:9b334a45a8ff	873	in the USART CR3 register */
bogdanm	0:9b334a45a8ff	874	husart->Instance->CR3 \|= USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	875
bogdanm	0:9b334a45a8ff	876	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	877	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	878
bogdanm	0:9b334a45a8ff	879	return HAL_OK;
bogdanm	0:9b334a45a8ff	880	}
bogdanm	0:9b334a45a8ff	881	else
bogdanm	0:9b334a45a8ff	882	{
bogdanm	0:9b334a45a8ff	883	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	884	}
bogdanm	0:9b334a45a8ff	885	}
bogdanm	0:9b334a45a8ff	886
bogdanm	0:9b334a45a8ff	887	/**
bogdanm	0:9b334a45a8ff	888	* @brief Full-Duplex Transmit Receive an amount of data in non-blocking mode.
bogdanm	0:9b334a45a8ff	889	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	890	* @param pTxData: pointer to TX data buffer.
bogdanm	0:9b334a45a8ff	891	* @param pRxData: pointer to RX data buffer.
bogdanm	0:9b334a45a8ff	892	* @param Size: amount of data to be received/sent.
bogdanm	0:9b334a45a8ff	893	* @note When the USART parity is enabled (PCE = 1) the data received contain the parity bit.
bogdanm	0:9b334a45a8ff	894	* @retval HAL status
bogdanm	0:9b334a45a8ff	895	*/
bogdanm	0:9b334a45a8ff	896	HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef husart, uint8_t pTxData, uint8_t *pRxData, uint16_t Size)
bogdanm	0:9b334a45a8ff	897	{
bogdanm	0:9b334a45a8ff	898	uint32_t *tmp;
bogdanm	0:9b334a45a8ff	899
bogdanm	0:9b334a45a8ff	900	if(husart->State == HAL_USART_STATE_READY)
bogdanm	0:9b334a45a8ff	901	{
bogdanm	0:9b334a45a8ff	902	if((pTxData == NULL) \|\| (pRxData == NULL) \|\| (Size == 0))
bogdanm	0:9b334a45a8ff	903	{
bogdanm	0:9b334a45a8ff	904	return HAL_ERROR;
bogdanm	0:9b334a45a8ff	905	}
bogdanm	0:9b334a45a8ff	906	/* Process Locked */
bogdanm	0:9b334a45a8ff	907	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	908
bogdanm	0:9b334a45a8ff	909	husart->pRxBuffPtr = pRxData;
bogdanm	0:9b334a45a8ff	910	husart->RxXferSize = Size;
bogdanm	0:9b334a45a8ff	911	husart->pTxBuffPtr = pTxData;
bogdanm	0:9b334a45a8ff	912	husart->TxXferSize = Size;
bogdanm	0:9b334a45a8ff	913
bogdanm	0:9b334a45a8ff	914	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	915	husart->State = HAL_USART_STATE_BUSY_TX_RX;
bogdanm	0:9b334a45a8ff	916
bogdanm	0:9b334a45a8ff	917	/* Set the USART DMA Rx transfer complete callback */
bogdanm	0:9b334a45a8ff	918	husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt;
bogdanm	0:9b334a45a8ff	919
bogdanm	0:9b334a45a8ff	920	/* Set the USART DMA Half transfer complete callback */
bogdanm	0:9b334a45a8ff	921	husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt;
bogdanm	0:9b334a45a8ff	922
bogdanm	0:9b334a45a8ff	923	/* Set the USART DMA Tx transfer complete callback */
bogdanm	0:9b334a45a8ff	924	husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt;
bogdanm	0:9b334a45a8ff	925
bogdanm	0:9b334a45a8ff	926	/* Set the USART DMA Half transfer complete callback */
bogdanm	0:9b334a45a8ff	927	husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt;
bogdanm	0:9b334a45a8ff	928
bogdanm	0:9b334a45a8ff	929	/* Set the USART DMA Tx transfer error callback */
bogdanm	0:9b334a45a8ff	930	husart->hdmatx->XferErrorCallback = USART_DMAError;
bogdanm	0:9b334a45a8ff	931
bogdanm	0:9b334a45a8ff	932	/* Set the USART DMA Rx transfer error callback */
bogdanm	0:9b334a45a8ff	933	husart->hdmarx->XferErrorCallback = USART_DMAError;
bogdanm	0:9b334a45a8ff	934
bogdanm	0:9b334a45a8ff	935	/* Enable the USART receive DMA channel */
bogdanm	0:9b334a45a8ff	936	tmp = (uint32_t*)&pRxData;
bogdanm	0:9b334a45a8ff	937	HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->RDR, (uint32_t)tmp, Size);
bogdanm	0:9b334a45a8ff	938
bogdanm	0:9b334a45a8ff	939	/* Enable the USART transmit DMA channel */
bogdanm	0:9b334a45a8ff	940	tmp = (uint32_t*)&pTxData;
bogdanm	0:9b334a45a8ff	941	HAL_DMA_Start_IT(husart->hdmatx, (uint32_t)tmp, (uint32_t)&husart->Instance->TDR, Size);
bogdanm	0:9b334a45a8ff	942
bogdanm	0:9b334a45a8ff	943	/* Clear the TC flag in the ICR register */
bogdanm	0:9b334a45a8ff	944	__HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_TCF);
bogdanm	0:9b334a45a8ff	945
bogdanm	0:9b334a45a8ff	946	/* Enable the DMA transfer for the receiver request by setting the DMAR bit
bogdanm	0:9b334a45a8ff	947	in the USART CR3 register */
bogdanm	0:9b334a45a8ff	948	husart->Instance->CR3 \|= USART_CR3_DMAR;
bogdanm	0:9b334a45a8ff	949
bogdanm	0:9b334a45a8ff	950	/* Enable the DMA transfer for transmit request by setting the DMAT bit
bogdanm	0:9b334a45a8ff	951	in the USART CR3 register */
bogdanm	0:9b334a45a8ff	952	husart->Instance->CR3 \|= USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	953
bogdanm	0:9b334a45a8ff	954	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	955	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	956
bogdanm	0:9b334a45a8ff	957	return HAL_OK;
bogdanm	0:9b334a45a8ff	958	}
bogdanm	0:9b334a45a8ff	959	else
bogdanm	0:9b334a45a8ff	960	{
bogdanm	0:9b334a45a8ff	961	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	962	}
bogdanm	0:9b334a45a8ff	963	}
bogdanm	0:9b334a45a8ff	964
bogdanm	0:9b334a45a8ff	965	/**
bogdanm	0:9b334a45a8ff	966	* @brief Pause the DMA Transfer.
bogdanm	0:9b334a45a8ff	967	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	968	* @retval HAL status
bogdanm	0:9b334a45a8ff	969	*/
bogdanm	0:9b334a45a8ff	970	HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	971	{
bogdanm	0:9b334a45a8ff	972	/* Process Locked */
bogdanm	0:9b334a45a8ff	973	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	974
bogdanm	0:9b334a45a8ff	975	if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	976	{
bogdanm	0:9b334a45a8ff	977	/* Disable the USART DMA Tx request */
bogdanm	0:9b334a45a8ff	978	husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
bogdanm	0:9b334a45a8ff	979	}
bogdanm	0:9b334a45a8ff	980	else if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	981	{
bogdanm	0:9b334a45a8ff	982	/* Disable the USART DMA Rx request */
bogdanm	0:9b334a45a8ff	983	husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
bogdanm	0:9b334a45a8ff	984	}
bogdanm	0:9b334a45a8ff	985	else if(husart->State == HAL_USART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	986	{
bogdanm	0:9b334a45a8ff	987	/* Disable the USART DMA Tx request */
bogdanm	0:9b334a45a8ff	988	husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
bogdanm	0:9b334a45a8ff	989	/* Disable the USART DMA Rx request */
bogdanm	0:9b334a45a8ff	990	husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
bogdanm	0:9b334a45a8ff	991	}
bogdanm	0:9b334a45a8ff	992
bogdanm	0:9b334a45a8ff	993	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	994	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	995
bogdanm	0:9b334a45a8ff	996	return HAL_OK;
bogdanm	0:9b334a45a8ff	997	}
bogdanm	0:9b334a45a8ff	998
bogdanm	0:9b334a45a8ff	999	/**
bogdanm	0:9b334a45a8ff	1000	* @brief Resume the DMA Transfer.
bogdanm	0:9b334a45a8ff	1001	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1002	* @retval HAL status
bogdanm	0:9b334a45a8ff	1003	*/
bogdanm	0:9b334a45a8ff	1004	HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1005	{
bogdanm	0:9b334a45a8ff	1006	/* Process Locked */
bogdanm	0:9b334a45a8ff	1007	__HAL_LOCK(husart);
bogdanm	0:9b334a45a8ff	1008
bogdanm	0:9b334a45a8ff	1009	if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	1010	{
bogdanm	0:9b334a45a8ff	1011	/* Enable the USART DMA Tx request */
bogdanm	0:9b334a45a8ff	1012	husart->Instance->CR3 \|= USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	1013	}
bogdanm	0:9b334a45a8ff	1014	else if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	1015	{
bogdanm	0:9b334a45a8ff	1016	/* Clear the Overrun flag before resuming the Rx transfer*/
bogdanm	0:9b334a45a8ff	1017	__HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_OREF);
bogdanm	0:9b334a45a8ff	1018
bogdanm	0:9b334a45a8ff	1019	/* Enable the USART DMA Rx request */
bogdanm	0:9b334a45a8ff	1020	husart->Instance->CR3 \|= USART_CR3_DMAR;
bogdanm	0:9b334a45a8ff	1021	}
bogdanm	0:9b334a45a8ff	1022	else if(husart->State == HAL_USART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	1023	{
bogdanm	0:9b334a45a8ff	1024	/* Clear the Overrun flag before resuming the Rx transfer*/
bogdanm	0:9b334a45a8ff	1025	__HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_OREF);
bogdanm	0:9b334a45a8ff	1026
bogdanm	0:9b334a45a8ff	1027	/* Enable the USART DMA Rx request before the DMA Tx request */
bogdanm	0:9b334a45a8ff	1028	husart->Instance->CR3 \|= USART_CR3_DMAR;
bogdanm	0:9b334a45a8ff	1029
bogdanm	0:9b334a45a8ff	1030	/* Enable the USART DMA Tx request */
bogdanm	0:9b334a45a8ff	1031	husart->Instance->CR3 \|= USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	1032	}
bogdanm	0:9b334a45a8ff	1033
bogdanm	0:9b334a45a8ff	1034	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1035	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	1036
bogdanm	0:9b334a45a8ff	1037	return HAL_OK;
bogdanm	0:9b334a45a8ff	1038	}
bogdanm	0:9b334a45a8ff	1039
bogdanm	0:9b334a45a8ff	1040	/**
bogdanm	0:9b334a45a8ff	1041	* @brief Stop the DMA Transfer.
bogdanm	0:9b334a45a8ff	1042	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1043	* @retval HAL status
bogdanm	0:9b334a45a8ff	1044	*/
bogdanm	0:9b334a45a8ff	1045	HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1046	{
bogdanm	0:9b334a45a8ff	1047	/* The Lock is not implemented on this API to allow the user application
bogdanm	0:9b334a45a8ff	1048	to call the HAL USART API under callbacks HAL_USART_TxCpltCallback() / HAL_USART_RxCpltCallback() /
bogdanm	0:9b334a45a8ff	1049	HAL_USART_TxHalfCpltCallback / HAL_USART_RxHalfCpltCallback:
bogdanm	0:9b334a45a8ff	1050	indeed, when HAL_DMA_Abort() API is called, the DMA TX/RX Transfer or Half Transfer complete
bogdanm	0:9b334a45a8ff	1051	interrupt is generated if the DMA transfer interruption occurs at the middle or at the end of
bogdanm	0:9b334a45a8ff	1052	the stream and the corresponding call back is executed. */
bogdanm	0:9b334a45a8ff	1053
bogdanm	0:9b334a45a8ff	1054	/* Disable the USART Tx/Rx DMA requests */
bogdanm	0:9b334a45a8ff	1055	husart->Instance->CR3 &= ~USART_CR3_DMAT;
bogdanm	0:9b334a45a8ff	1056	husart->Instance->CR3 &= ~USART_CR3_DMAR;
bogdanm	0:9b334a45a8ff	1057
bogdanm	0:9b334a45a8ff	1058	/* Abort the USART DMA tx channel */
bogdanm	0:9b334a45a8ff	1059	if(husart->hdmatx != NULL)
bogdanm	0:9b334a45a8ff	1060	{
bogdanm	0:9b334a45a8ff	1061	HAL_DMA_Abort(husart->hdmatx);
bogdanm	0:9b334a45a8ff	1062	}
bogdanm	0:9b334a45a8ff	1063	/* Abort the USART DMA rx channel */
bogdanm	0:9b334a45a8ff	1064	if(husart->hdmarx != NULL)
bogdanm	0:9b334a45a8ff	1065	{
bogdanm	0:9b334a45a8ff	1066	HAL_DMA_Abort(husart->hdmarx);
bogdanm	0:9b334a45a8ff	1067	}
bogdanm	0:9b334a45a8ff	1068
bogdanm	0:9b334a45a8ff	1069	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1070
bogdanm	0:9b334a45a8ff	1071	return HAL_OK;
bogdanm	0:9b334a45a8ff	1072	}
bogdanm	0:9b334a45a8ff	1073
bogdanm	0:9b334a45a8ff	1074	/**
bogdanm	0:9b334a45a8ff	1075	* @brief Handle USART interrupt request.
bogdanm	0:9b334a45a8ff	1076	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1077	* @retval None
bogdanm	0:9b334a45a8ff	1078	*/
bogdanm	0:9b334a45a8ff	1079	void HAL_USART_IRQHandler(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1080	{
bogdanm	0:9b334a45a8ff	1081
bogdanm	0:9b334a45a8ff	1082	/* USART parity error interrupt occurred ------------------------------------*/
bogdanm	0:9b334a45a8ff	1083	if((__HAL_USART_GET_IT(husart, USART_IT_PE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_PE) != RESET))
bogdanm	0:9b334a45a8ff	1084	{
bogdanm	0:9b334a45a8ff	1085	__HAL_USART_CLEAR_IT(husart, USART_CLEAR_PEF);
bogdanm	0:9b334a45a8ff	1086	husart->ErrorCode \|= HAL_USART_ERROR_PE;
bogdanm	0:9b334a45a8ff	1087	/* Set the USART state ready to be able to start again the process */
bogdanm	0:9b334a45a8ff	1088	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1089	}
bogdanm	0:9b334a45a8ff	1090
bogdanm	0:9b334a45a8ff	1091	/* USART frame error interrupt occurred -------------------------------------*/
bogdanm	0:9b334a45a8ff	1092	if((__HAL_USART_GET_IT(husart, USART_IT_FE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR) != RESET))
bogdanm	0:9b334a45a8ff	1093	{
bogdanm	0:9b334a45a8ff	1094	__HAL_USART_CLEAR_IT(husart, USART_CLEAR_FEF);
bogdanm	0:9b334a45a8ff	1095	husart->ErrorCode \|= HAL_USART_ERROR_FE;
bogdanm	0:9b334a45a8ff	1096	/* Set the USART state ready to be able to start again the process */
bogdanm	0:9b334a45a8ff	1097	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1098	}
bogdanm	0:9b334a45a8ff	1099
bogdanm	0:9b334a45a8ff	1100	/* USART noise error interrupt occurred -------------------------------------*/
bogdanm	0:9b334a45a8ff	1101	if((__HAL_USART_GET_IT(husart, USART_IT_NE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR) != RESET))
bogdanm	0:9b334a45a8ff	1102	{
bogdanm	0:9b334a45a8ff	1103	__HAL_USART_CLEAR_IT(husart, USART_CLEAR_NEF);
bogdanm	0:9b334a45a8ff	1104	husart->ErrorCode \|= HAL_USART_ERROR_NE;
bogdanm	0:9b334a45a8ff	1105	/* Set the USART state ready to be able to start again the process */
bogdanm	0:9b334a45a8ff	1106	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1107	}
bogdanm	0:9b334a45a8ff	1108
bogdanm	0:9b334a45a8ff	1109	/* USART Over-Run interrupt occurred ----------------------------------------*/
bogdanm	0:9b334a45a8ff	1110	if((__HAL_USART_GET_IT(husart, USART_IT_ORE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR) != RESET))
bogdanm	0:9b334a45a8ff	1111	{
bogdanm	0:9b334a45a8ff	1112	__HAL_USART_CLEAR_IT(husart, USART_CLEAR_OREF);
bogdanm	0:9b334a45a8ff	1113	husart->ErrorCode \|= HAL_USART_ERROR_ORE;
bogdanm	0:9b334a45a8ff	1114	/* Set the USART state ready to be able to start again the process */
bogdanm	0:9b334a45a8ff	1115	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1116	}
bogdanm	0:9b334a45a8ff	1117
bogdanm	0:9b334a45a8ff	1118	/* Call USART Error Call back function if need be --------------------------*/
bogdanm	0:9b334a45a8ff	1119	if(husart->ErrorCode != HAL_USART_ERROR_NONE)
bogdanm	0:9b334a45a8ff	1120	{
bogdanm	0:9b334a45a8ff	1121	HAL_USART_ErrorCallback(husart);
bogdanm	0:9b334a45a8ff	1122	}
bogdanm	0:9b334a45a8ff	1123
bogdanm	0:9b334a45a8ff	1124	/* USART in mode Receiver --------------------------------------------------*/
bogdanm	0:9b334a45a8ff	1125	if((__HAL_USART_GET_IT(husart, USART_IT_RXNE) != RESET) && (__HAL_USART_GET_IT_SOURCE(husart, USART_IT_RXNE) != RESET))
bogdanm	0:9b334a45a8ff	1126	{
bogdanm	0:9b334a45a8ff	1127	if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	1128	{
bogdanm	0:9b334a45a8ff	1129	USART_Receive_IT(husart);
bogdanm	0:9b334a45a8ff	1130	}
bogdanm	0:9b334a45a8ff	1131	else
bogdanm	0:9b334a45a8ff	1132	{
bogdanm	0:9b334a45a8ff	1133	USART_TransmitReceive_IT(husart);
bogdanm	0:9b334a45a8ff	1134	}
bogdanm	0:9b334a45a8ff	1135	}
bogdanm	0:9b334a45a8ff	1136
bogdanm	0:9b334a45a8ff	1137	/* USART in mode Transmitter -----------------------------------------------*/
bogdanm	0:9b334a45a8ff	1138	if((__HAL_USART_GET_IT(husart, USART_IT_TXE) != RESET) &&(__HAL_USART_GET_IT_SOURCE(husart, USART_IT_TXE) != RESET))
bogdanm	0:9b334a45a8ff	1139	{
bogdanm	0:9b334a45a8ff	1140	if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	1141	{
bogdanm	0:9b334a45a8ff	1142	USART_Transmit_IT(husart);
bogdanm	0:9b334a45a8ff	1143	}
bogdanm	0:9b334a45a8ff	1144	else
bogdanm	0:9b334a45a8ff	1145	{
bogdanm	0:9b334a45a8ff	1146	USART_TransmitReceive_IT(husart);
bogdanm	0:9b334a45a8ff	1147	}
bogdanm	0:9b334a45a8ff	1148	}
bogdanm	0:9b334a45a8ff	1149
bogdanm	0:9b334a45a8ff	1150	/* USART in mode Transmitter (transmission end) -----------------------------*/
bogdanm	0:9b334a45a8ff	1151	if((__HAL_USART_GET_IT(husart, USART_IT_TC) != RESET) &&(__HAL_USART_GET_IT_SOURCE(husart, USART_IT_TC) != RESET))
bogdanm	0:9b334a45a8ff	1152	{
bogdanm	0:9b334a45a8ff	1153	USART_EndTransmit_IT(husart);
bogdanm	0:9b334a45a8ff	1154	}
bogdanm	0:9b334a45a8ff	1155
bogdanm	0:9b334a45a8ff	1156	}
bogdanm	0:9b334a45a8ff	1157
bogdanm	0:9b334a45a8ff	1158	/**
bogdanm	0:9b334a45a8ff	1159	* @brief Tx Transfer completed callback.
bogdanm	0:9b334a45a8ff	1160	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1161	* @retval None
bogdanm	0:9b334a45a8ff	1162	*/
bogdanm	0:9b334a45a8ff	1163	__weak void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1164	{
bogdanm	0:9b334a45a8ff	1165	/* NOTE : This function should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1166	the HAL_USART_TxCpltCallback can be implemented in the user file.
bogdanm	0:9b334a45a8ff	1167	*/
bogdanm	0:9b334a45a8ff	1168	}
bogdanm	0:9b334a45a8ff	1169
bogdanm	0:9b334a45a8ff	1170	/**
bogdanm	0:9b334a45a8ff	1171	* @brief Tx Half Transfer completed callback.
bogdanm	0:9b334a45a8ff	1172	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1173	* @retval None
bogdanm	0:9b334a45a8ff	1174	*/
bogdanm	0:9b334a45a8ff	1175	__weak void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1176	{
bogdanm	0:9b334a45a8ff	1177	/* NOTE: This function should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1178	the HAL_USART_TxHalfCpltCallback can be implemented in the user file.
bogdanm	0:9b334a45a8ff	1179	*/
bogdanm	0:9b334a45a8ff	1180	}
bogdanm	0:9b334a45a8ff	1181
bogdanm	0:9b334a45a8ff	1182	/**
bogdanm	0:9b334a45a8ff	1183	* @brief Rx Transfer completed callback.
bogdanm	0:9b334a45a8ff	1184	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1185	* @retval None
bogdanm	0:9b334a45a8ff	1186	*/
bogdanm	0:9b334a45a8ff	1187	__weak void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1188	{
bogdanm	0:9b334a45a8ff	1189	/* NOTE: This function should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1190	the HAL_USART_RxCpltCallback can be implemented in the user file.
bogdanm	0:9b334a45a8ff	1191	*/
bogdanm	0:9b334a45a8ff	1192	}
bogdanm	0:9b334a45a8ff	1193
bogdanm	0:9b334a45a8ff	1194	/**
bogdanm	0:9b334a45a8ff	1195	* @brief Rx Half Transfer completed callback.
bogdanm	0:9b334a45a8ff	1196	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1197	* @retval None
bogdanm	0:9b334a45a8ff	1198	*/
bogdanm	0:9b334a45a8ff	1199	__weak void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1200	{
bogdanm	0:9b334a45a8ff	1201	/* NOTE : This function should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1202	the HAL_USART_RxHalfCpltCallback can be implemented in the user file
bogdanm	0:9b334a45a8ff	1203	*/
bogdanm	0:9b334a45a8ff	1204	}
bogdanm	0:9b334a45a8ff	1205
bogdanm	0:9b334a45a8ff	1206	/**
bogdanm	0:9b334a45a8ff	1207	* @brief Tx/Rx Transfers completed callback for the non-blocking process.
bogdanm	0:9b334a45a8ff	1208	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1209	* @retval None
bogdanm	0:9b334a45a8ff	1210	*/
bogdanm	0:9b334a45a8ff	1211	__weak void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1212	{
bogdanm	0:9b334a45a8ff	1213	/* NOTE : This function should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1214	the HAL_USART_TxRxCpltCallback can be implemented in the user file
bogdanm	0:9b334a45a8ff	1215	*/
bogdanm	0:9b334a45a8ff	1216	}
bogdanm	0:9b334a45a8ff	1217
bogdanm	0:9b334a45a8ff	1218	/**
bogdanm	0:9b334a45a8ff	1219	* @brief USART error callback.
bogdanm	0:9b334a45a8ff	1220	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1221	* @retval None
bogdanm	0:9b334a45a8ff	1222	*/
bogdanm	0:9b334a45a8ff	1223	__weak void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1224	{
bogdanm	0:9b334a45a8ff	1225	/* NOTE : This function should not be modified, when the callback is needed,
bogdanm	0:9b334a45a8ff	1226	the HAL_USART_ErrorCallback can be implemented in the user file.
bogdanm	0:9b334a45a8ff	1227	*/
bogdanm	0:9b334a45a8ff	1228	}
bogdanm	0:9b334a45a8ff	1229
bogdanm	0:9b334a45a8ff	1230	/**
bogdanm	0:9b334a45a8ff	1231	* @}
bogdanm	0:9b334a45a8ff	1232	*/
bogdanm	0:9b334a45a8ff	1233
bogdanm	0:9b334a45a8ff	1234	/** @defgroup USART_Exported_Functions_Group4 Peripheral State and Error functions
bogdanm	0:9b334a45a8ff	1235	* @brief USART Peripheral State and Error functions
bogdanm	0:9b334a45a8ff	1236	*
bogdanm	0:9b334a45a8ff	1237	@verbatim
bogdanm	0:9b334a45a8ff	1238	==============================================================================
bogdanm	0:9b334a45a8ff	1239	##### Peripheral State and Error functions #####
bogdanm	0:9b334a45a8ff	1240	==============================================================================
bogdanm	0:9b334a45a8ff	1241	[..]
bogdanm	0:9b334a45a8ff	1242	This subsection provides functions allowing to :
bogdanm	0:9b334a45a8ff	1243	(+) Return the USART handle state
bogdanm	0:9b334a45a8ff	1244	(+) Return the USART handle error code
bogdanm	0:9b334a45a8ff	1245
bogdanm	0:9b334a45a8ff	1246	@endverbatim
bogdanm	0:9b334a45a8ff	1247	* @{
bogdanm	0:9b334a45a8ff	1248	*/
bogdanm	0:9b334a45a8ff	1249
bogdanm	0:9b334a45a8ff	1250
bogdanm	0:9b334a45a8ff	1251	/**
bogdanm	0:9b334a45a8ff	1252	* @brief Return the USART handle state.
bogdanm	0:9b334a45a8ff	1253	* @param husart : pointer to a USART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1254	* the configuration information for the specified USART.
bogdanm	0:9b334a45a8ff	1255	* @retval USART handle state
bogdanm	0:9b334a45a8ff	1256	*/
bogdanm	0:9b334a45a8ff	1257	HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1258	{
bogdanm	0:9b334a45a8ff	1259	return husart->State;
bogdanm	0:9b334a45a8ff	1260	}
bogdanm	0:9b334a45a8ff	1261
bogdanm	0:9b334a45a8ff	1262	/**
bogdanm	0:9b334a45a8ff	1263	* @brief Return the USART error code.
bogdanm	0:9b334a45a8ff	1264	* @param husart : pointer to a USART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1265	* the configuration information for the specified USART.
bogdanm	0:9b334a45a8ff	1266	* @retval USART handle Error Code
bogdanm	0:9b334a45a8ff	1267	*/
bogdanm	0:9b334a45a8ff	1268	uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1269	{
bogdanm	0:9b334a45a8ff	1270	return husart->ErrorCode;
bogdanm	0:9b334a45a8ff	1271	}
bogdanm	0:9b334a45a8ff	1272
bogdanm	0:9b334a45a8ff	1273	/**
bogdanm	0:9b334a45a8ff	1274	* @}
bogdanm	0:9b334a45a8ff	1275	*/
bogdanm	0:9b334a45a8ff	1276
bogdanm	0:9b334a45a8ff	1277	/**
bogdanm	0:9b334a45a8ff	1278	* @}
bogdanm	0:9b334a45a8ff	1279	*/
bogdanm	0:9b334a45a8ff	1280
bogdanm	0:9b334a45a8ff	1281	/** @defgroup USART_Private_Functions USART Private Functions
bogdanm	0:9b334a45a8ff	1282	* @{
bogdanm	0:9b334a45a8ff	1283	*/
bogdanm	0:9b334a45a8ff	1284
bogdanm	0:9b334a45a8ff	1285	/**
bogdanm	0:9b334a45a8ff	1286	* @brief DMA USART transmit process complete callback.
bogdanm	0:9b334a45a8ff	1287	* @param hdma: DMA handle.
bogdanm	0:9b334a45a8ff	1288	* @retval None
bogdanm	0:9b334a45a8ff	1289	*/
bogdanm	0:9b334a45a8ff	1290	static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1291	{
bogdanm	0:9b334a45a8ff	1292	USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm	0:9b334a45a8ff	1293
bogdanm	0:9b334a45a8ff	1294	/* DMA Normal mode */
bogdanm	0:9b334a45a8ff	1295	if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) )
bogdanm	0:9b334a45a8ff	1296	{
bogdanm	0:9b334a45a8ff	1297	husart->TxXferCount = 0;
bogdanm	0:9b334a45a8ff	1298
bogdanm	0:9b334a45a8ff	1299	if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	1300	{
bogdanm	0:9b334a45a8ff	1301	/* Disable the DMA transfer for transmit request by resetting the DMAT bit
bogdanm	0:9b334a45a8ff	1302	in the USART CR3 register */
bogdanm	0:9b334a45a8ff	1303	husart->Instance->CR3 &= ~(USART_CR3_DMAT);
bogdanm	0:9b334a45a8ff	1304
bogdanm	0:9b334a45a8ff	1305	/* Enable the USART Transmit Complete Interrupt */
bogdanm	0:9b334a45a8ff	1306	__HAL_USART_ENABLE_IT(husart, USART_IT_TC);
bogdanm	0:9b334a45a8ff	1307	}
bogdanm	0:9b334a45a8ff	1308	}
bogdanm	0:9b334a45a8ff	1309	/* DMA Circular mode */
bogdanm	0:9b334a45a8ff	1310	else
bogdanm	0:9b334a45a8ff	1311	{
bogdanm	0:9b334a45a8ff	1312	if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	1313	{
bogdanm	0:9b334a45a8ff	1314	HAL_USART_TxCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1315	}
bogdanm	0:9b334a45a8ff	1316	}
bogdanm	0:9b334a45a8ff	1317	}
bogdanm	0:9b334a45a8ff	1318
bogdanm	0:9b334a45a8ff	1319
bogdanm	0:9b334a45a8ff	1320	/**
bogdanm	0:9b334a45a8ff	1321	* @brief DMA USART transmit process half complete callback.
bogdanm	0:9b334a45a8ff	1322	* @param hdma : DMA handle.
bogdanm	0:9b334a45a8ff	1323	* @retval None
bogdanm	0:9b334a45a8ff	1324	*/
bogdanm	0:9b334a45a8ff	1325	static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1326	{
bogdanm	0:9b334a45a8ff	1327	USART_HandleTypeDef* husart = (USART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
bogdanm	0:9b334a45a8ff	1328
bogdanm	0:9b334a45a8ff	1329	HAL_USART_TxHalfCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1330	}
bogdanm	0:9b334a45a8ff	1331
bogdanm	0:9b334a45a8ff	1332	/**
bogdanm	0:9b334a45a8ff	1333	* @brief DMA USART receive process complete callback.
bogdanm	0:9b334a45a8ff	1334	* @param hdma: DMA handle.
bogdanm	0:9b334a45a8ff	1335	* @retval None
bogdanm	0:9b334a45a8ff	1336	*/
bogdanm	0:9b334a45a8ff	1337	static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1338	{
bogdanm	0:9b334a45a8ff	1339	USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm	0:9b334a45a8ff	1340
bogdanm	0:9b334a45a8ff	1341	/* DMA Normal mode */
bogdanm	0:9b334a45a8ff	1342	if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) )
bogdanm	0:9b334a45a8ff	1343	{
bogdanm	0:9b334a45a8ff	1344	husart->RxXferCount = 0;
bogdanm	0:9b334a45a8ff	1345
bogdanm	0:9b334a45a8ff	1346	/* Disable the DMA RX transfer for the receiver request by resetting the DMAR bit
bogdanm	0:9b334a45a8ff	1347	in USART CR3 register */
bogdanm	0:9b334a45a8ff	1348	husart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAR);
bogdanm	0:9b334a45a8ff	1349	/* similarly, disable the DMA TX transfer that was started to provide the
bogdanm	0:9b334a45a8ff	1350	clock to the slave device */
bogdanm	0:9b334a45a8ff	1351	husart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT);
bogdanm	0:9b334a45a8ff	1352
bogdanm	0:9b334a45a8ff	1353	if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	1354	{
bogdanm	0:9b334a45a8ff	1355	HAL_USART_RxCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1356	}
bogdanm	0:9b334a45a8ff	1357	/* The USART state is HAL_USART_STATE_BUSY_TX_RX */
bogdanm	0:9b334a45a8ff	1358	else
bogdanm	0:9b334a45a8ff	1359	{
bogdanm	0:9b334a45a8ff	1360	HAL_USART_TxRxCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1361	}
bogdanm	0:9b334a45a8ff	1362	husart->State= HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1363	}
bogdanm	0:9b334a45a8ff	1364	/* DMA circular mode */
bogdanm	0:9b334a45a8ff	1365	else
bogdanm	0:9b334a45a8ff	1366	{
bogdanm	0:9b334a45a8ff	1367	if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	1368	{
bogdanm	0:9b334a45a8ff	1369	HAL_USART_RxCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1370	}
bogdanm	0:9b334a45a8ff	1371	/* The USART state is HAL_USART_STATE_BUSY_TX_RX */
bogdanm	0:9b334a45a8ff	1372	else
bogdanm	0:9b334a45a8ff	1373	{
bogdanm	0:9b334a45a8ff	1374	HAL_USART_TxRxCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1375	}
bogdanm	0:9b334a45a8ff	1376	}
bogdanm	0:9b334a45a8ff	1377
bogdanm	0:9b334a45a8ff	1378	}
bogdanm	0:9b334a45a8ff	1379
bogdanm	0:9b334a45a8ff	1380	/**
bogdanm	0:9b334a45a8ff	1381	* @brief DMA USART receive process half complete callback.
bogdanm	0:9b334a45a8ff	1382	* @param hdma : DMA handle.
bogdanm	0:9b334a45a8ff	1383	* @retval None
bogdanm	0:9b334a45a8ff	1384	*/
bogdanm	0:9b334a45a8ff	1385	static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1386	{
bogdanm	0:9b334a45a8ff	1387	USART_HandleTypeDef* husart = (USART_HandleTypeDef)((DMA_HandleTypeDef)hdma)->Parent;
bogdanm	0:9b334a45a8ff	1388
bogdanm	0:9b334a45a8ff	1389	HAL_USART_RxHalfCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1390	}
bogdanm	0:9b334a45a8ff	1391
bogdanm	0:9b334a45a8ff	1392	/**
bogdanm	0:9b334a45a8ff	1393	* @brief DMA USART communication error callback.
bogdanm	0:9b334a45a8ff	1394	* @param hdma: DMA handle.
bogdanm	0:9b334a45a8ff	1395	* @retval None
bogdanm	0:9b334a45a8ff	1396	*/
bogdanm	0:9b334a45a8ff	1397	static void USART_DMAError(DMA_HandleTypeDef *hdma)
bogdanm	0:9b334a45a8ff	1398	{
bogdanm	0:9b334a45a8ff	1399	USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
bogdanm	0:9b334a45a8ff	1400
bogdanm	0:9b334a45a8ff	1401	husart->RxXferCount = 0;
bogdanm	0:9b334a45a8ff	1402	husart->TxXferCount = 0;
bogdanm	0:9b334a45a8ff	1403	husart->ErrorCode \|= HAL_USART_ERROR_DMA;
bogdanm	0:9b334a45a8ff	1404	husart->State= HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1405
bogdanm	0:9b334a45a8ff	1406	HAL_USART_ErrorCallback(husart);
bogdanm	0:9b334a45a8ff	1407	}
bogdanm	0:9b334a45a8ff	1408
bogdanm	0:9b334a45a8ff	1409	/**
bogdanm	0:9b334a45a8ff	1410	* @brief Handle USART Communication Timeout.
bogdanm	0:9b334a45a8ff	1411	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1412	* @param Flag: specifies the USART flag to check.
bogdanm	0:9b334a45a8ff	1413	* @param Status: the Flag status (SET or RESET).
bogdanm	0:9b334a45a8ff	1414	* @param Timeout: timeout duration.
bogdanm	0:9b334a45a8ff	1415	* @retval HAL status
bogdanm	0:9b334a45a8ff	1416	*/
bogdanm	0:9b334a45a8ff	1417	static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
bogdanm	0:9b334a45a8ff	1418	{
bogdanm	0:9b334a45a8ff	1419	uint32_t tickstart = HAL_GetTick();
bogdanm	0:9b334a45a8ff	1420
bogdanm	0:9b334a45a8ff	1421	/* Wait until flag is set */
bogdanm	0:9b334a45a8ff	1422	if(Status == RESET)
bogdanm	0:9b334a45a8ff	1423	{
bogdanm	0:9b334a45a8ff	1424	while(__HAL_USART_GET_FLAG(husart, Flag) == RESET)
bogdanm	0:9b334a45a8ff	1425	{
bogdanm	0:9b334a45a8ff	1426	/* Check for the Timeout */
bogdanm	0:9b334a45a8ff	1427	if(Timeout != HAL_MAX_DELAY)
bogdanm	0:9b334a45a8ff	1428	{
bogdanm	0:9b334a45a8ff	1429	if((Timeout == 0) \|\| ((HAL_GetTick()-tickstart) > Timeout))
bogdanm	0:9b334a45a8ff	1430	{
bogdanm	0:9b334a45a8ff	1431	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
bogdanm	0:9b334a45a8ff	1432	__HAL_USART_DISABLE_IT(husart, USART_IT_TXE);
bogdanm	0:9b334a45a8ff	1433	__HAL_USART_DISABLE_IT(husart, USART_IT_RXNE);
bogdanm	0:9b334a45a8ff	1434	__HAL_USART_DISABLE_IT(husart, USART_IT_PE);
bogdanm	0:9b334a45a8ff	1435	__HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm	0:9b334a45a8ff	1436
bogdanm	0:9b334a45a8ff	1437	husart->State= HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1438
bogdanm	0:9b334a45a8ff	1439	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1440	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	1441
bogdanm	0:9b334a45a8ff	1442	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	1443	}
bogdanm	0:9b334a45a8ff	1444	}
bogdanm	0:9b334a45a8ff	1445	}
bogdanm	0:9b334a45a8ff	1446	}
bogdanm	0:9b334a45a8ff	1447	else
bogdanm	0:9b334a45a8ff	1448	{
bogdanm	0:9b334a45a8ff	1449	while(__HAL_USART_GET_FLAG(husart, Flag) != RESET)
bogdanm	0:9b334a45a8ff	1450	{
bogdanm	0:9b334a45a8ff	1451	/* Check for the Timeout */
bogdanm	0:9b334a45a8ff	1452	if(Timeout != HAL_MAX_DELAY)
bogdanm	0:9b334a45a8ff	1453	{
bogdanm	0:9b334a45a8ff	1454	if((Timeout == 0) \|\| ((HAL_GetTick()-tickstart) > Timeout))
bogdanm	0:9b334a45a8ff	1455	{
bogdanm	0:9b334a45a8ff	1456	/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
bogdanm	0:9b334a45a8ff	1457	__HAL_USART_DISABLE_IT(husart, USART_IT_TXE);
bogdanm	0:9b334a45a8ff	1458	__HAL_USART_DISABLE_IT(husart, USART_IT_RXNE);
bogdanm	0:9b334a45a8ff	1459	__HAL_USART_DISABLE_IT(husart, USART_IT_PE);
bogdanm	0:9b334a45a8ff	1460	__HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm	0:9b334a45a8ff	1461
bogdanm	0:9b334a45a8ff	1462	husart->State= HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1463
bogdanm	0:9b334a45a8ff	1464	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1465	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	1466
bogdanm	0:9b334a45a8ff	1467	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	1468	}
bogdanm	0:9b334a45a8ff	1469	}
bogdanm	0:9b334a45a8ff	1470	}
bogdanm	0:9b334a45a8ff	1471	}
bogdanm	0:9b334a45a8ff	1472	return HAL_OK;
bogdanm	0:9b334a45a8ff	1473	}
bogdanm	0:9b334a45a8ff	1474
bogdanm	0:9b334a45a8ff	1475	/**
bogdanm	0:9b334a45a8ff	1476	* @brief Configure the USART peripheral.
bogdanm	0:9b334a45a8ff	1477	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1478	* @retval HAL status
bogdanm	0:9b334a45a8ff	1479	*/
bogdanm	0:9b334a45a8ff	1480	static HAL_StatusTypeDef USART_SetConfig(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1481	{
bogdanm	0:9b334a45a8ff	1482	uint32_t tmpreg = 0x0;
bogdanm	0:9b334a45a8ff	1483	USART_ClockSourceTypeDef clocksource = USART_CLOCKSOURCE_UNDEFINED;
bogdanm	0:9b334a45a8ff	1484	HAL_StatusTypeDef ret = HAL_OK;
bogdanm	0:9b334a45a8ff	1485	uint16_t brrtemp = 0x0000;
bogdanm	0:9b334a45a8ff	1486	uint16_t usartdiv = 0x0000;
bogdanm	0:9b334a45a8ff	1487
bogdanm	0:9b334a45a8ff	1488	/* Check the parameters */
bogdanm	0:9b334a45a8ff	1489	assert_param(IS_USART_POLARITY(husart->Init.CLKPolarity));
bogdanm	0:9b334a45a8ff	1490	assert_param(IS_USART_PHASE(husart->Init.CLKPhase));
bogdanm	0:9b334a45a8ff	1491	assert_param(IS_USART_LASTBIT(husart->Init.CLKLastBit));
bogdanm	0:9b334a45a8ff	1492	assert_param(IS_USART_BAUDRATE(husart->Init.BaudRate));
bogdanm	0:9b334a45a8ff	1493	assert_param(IS_USART_WORD_LENGTH(husart->Init.WordLength));
bogdanm	0:9b334a45a8ff	1494	assert_param(IS_USART_STOPBITS(husart->Init.StopBits));
bogdanm	0:9b334a45a8ff	1495	assert_param(IS_USART_PARITY(husart->Init.Parity));
bogdanm	0:9b334a45a8ff	1496	assert_param(IS_USART_MODE(husart->Init.Mode));
bogdanm	0:9b334a45a8ff	1497
bogdanm	0:9b334a45a8ff	1498
bogdanm	0:9b334a45a8ff	1499	/-------------------------- USART CR1 Configuration -----------------------/
bogdanm	0:9b334a45a8ff	1500	/* Clear M, PCE, PS, TE and RE bits and configure
bogdanm	0:9b334a45a8ff	1501	* the USART Word Length, Parity and Mode:
bogdanm	0:9b334a45a8ff	1502	* set the M bits according to husart->Init.WordLength value
bogdanm	0:9b334a45a8ff	1503	* set PCE and PS bits according to husart->Init.Parity value
bogdanm	0:9b334a45a8ff	1504	* set TE and RE bits according to husart->Init.Mode value
bogdanm	0:9b334a45a8ff	1505	* force OVER8 to 1 to allow to reach the maximum speed (Fclock/8) */
bogdanm	0:9b334a45a8ff	1506	tmpreg = (uint32_t)husart->Init.WordLength \| husart->Init.Parity \| husart->Init.Mode \| USART_CR1_OVER8;
bogdanm	0:9b334a45a8ff	1507	MODIFY_REG(husart->Instance->CR1, USART_CR1_FIELDS, tmpreg);
bogdanm	0:9b334a45a8ff	1508
bogdanm	0:9b334a45a8ff	1509	/---------------------------- USART CR2 Configuration ---------------------/
bogdanm	0:9b334a45a8ff	1510	/* Clear and configure the USART Clock, CPOL, CPHA, LBCL and STOP bits:
bogdanm	0:9b334a45a8ff	1511	* set CPOL bit according to husart->Init.CLKPolarity value
bogdanm	0:9b334a45a8ff	1512	* set CPHA bit according to husart->Init.CLKPhase value
bogdanm	0:9b334a45a8ff	1513	* set LBCL bit according to husart->Init.CLKLastBit value
bogdanm	0:9b334a45a8ff	1514	* set STOP[13:12] bits according to husart->Init.StopBits value */
bogdanm	0:9b334a45a8ff	1515	tmpreg = (uint32_t)(USART_CLOCK_ENABLE);
bogdanm	0:9b334a45a8ff	1516	tmpreg \|= ((uint32_t)husart->Init.CLKPolarity \| (uint32_t)husart->Init.CLKPhase);
bogdanm	0:9b334a45a8ff	1517	tmpreg \|= ((uint32_t)husart->Init.CLKLastBit \| (uint32_t)husart->Init.StopBits);
bogdanm	0:9b334a45a8ff	1518	MODIFY_REG(husart->Instance->CR2, USART_CR2_FIELDS, tmpreg);
bogdanm	0:9b334a45a8ff	1519
bogdanm	0:9b334a45a8ff	1520	/-------------------------- USART CR3 Configuration -----------------------/
bogdanm	0:9b334a45a8ff	1521	/* no CR3 register configuration */
bogdanm	0:9b334a45a8ff	1522
bogdanm	0:9b334a45a8ff	1523	/-------------------------- USART BRR Configuration -----------------------/
bogdanm	0:9b334a45a8ff	1524	/* BRR is filled-up according to OVER8 bit setting which is forced to 1 */
bogdanm	0:9b334a45a8ff	1525	USART_GETCLOCKSOURCE(husart, clocksource);
bogdanm	0:9b334a45a8ff	1526	switch (clocksource)
bogdanm	0:9b334a45a8ff	1527	{
bogdanm	0:9b334a45a8ff	1528	case USART_CLOCKSOURCE_PCLK1:
bogdanm	0:9b334a45a8ff	1529	usartdiv = (uint16_t)((2*HAL_RCC_GetPCLK1Freq()) / husart->Init.BaudRate);
bogdanm	0:9b334a45a8ff	1530	break;
bogdanm	0:9b334a45a8ff	1531	case USART_CLOCKSOURCE_PCLK2:
bogdanm	0:9b334a45a8ff	1532	usartdiv = (uint16_t)((2*HAL_RCC_GetPCLK2Freq()) / husart->Init.BaudRate);
bogdanm	0:9b334a45a8ff	1533	break;
bogdanm	0:9b334a45a8ff	1534	case USART_CLOCKSOURCE_HSI:
bogdanm	0:9b334a45a8ff	1535	usartdiv = (uint16_t)((2*HSI_VALUE) / husart->Init.BaudRate);
bogdanm	0:9b334a45a8ff	1536	break;
bogdanm	0:9b334a45a8ff	1537	case USART_CLOCKSOURCE_SYSCLK:
bogdanm	0:9b334a45a8ff	1538	usartdiv = (uint16_t)((2*HAL_RCC_GetSysClockFreq()) / husart->Init.BaudRate);
bogdanm	0:9b334a45a8ff	1539	break;
bogdanm	0:9b334a45a8ff	1540	case USART_CLOCKSOURCE_LSE:
bogdanm	0:9b334a45a8ff	1541	usartdiv = (uint16_t)((2*LSE_VALUE) / husart->Init.BaudRate);
bogdanm	0:9b334a45a8ff	1542	break;
bogdanm	0:9b334a45a8ff	1543	case USART_CLOCKSOURCE_UNDEFINED:
bogdanm	0:9b334a45a8ff	1544	default:
bogdanm	0:9b334a45a8ff	1545	ret = HAL_ERROR;
bogdanm	0:9b334a45a8ff	1546	break;
bogdanm	0:9b334a45a8ff	1547	}
bogdanm	0:9b334a45a8ff	1548
bogdanm	0:9b334a45a8ff	1549	brrtemp = usartdiv & 0xFFF0;
bogdanm	0:9b334a45a8ff	1550	brrtemp \|= (uint16_t)((usartdiv & (uint16_t)0x000F) >> 1U);
bogdanm	0:9b334a45a8ff	1551	husart->Instance->BRR = brrtemp;
bogdanm	0:9b334a45a8ff	1552
bogdanm	0:9b334a45a8ff	1553	return ret;
bogdanm	0:9b334a45a8ff	1554	}
bogdanm	0:9b334a45a8ff	1555
bogdanm	0:9b334a45a8ff	1556	/**
bogdanm	0:9b334a45a8ff	1557	* @brief Check the USART Idle State.
bogdanm	0:9b334a45a8ff	1558	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1559	* @retval HAL status
bogdanm	0:9b334a45a8ff	1560	*/
bogdanm	0:9b334a45a8ff	1561	static HAL_StatusTypeDef USART_CheckIdleState(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1562	{
bogdanm	0:9b334a45a8ff	1563	/* Initialize the USART ErrorCode */
bogdanm	0:9b334a45a8ff	1564	husart->ErrorCode = HAL_USART_ERROR_NONE;
bogdanm	0:9b334a45a8ff	1565
bogdanm	0:9b334a45a8ff	1566	/* Check if the Transmitter is enabled */
bogdanm	0:9b334a45a8ff	1567	if((husart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
bogdanm	0:9b334a45a8ff	1568	{
bogdanm	0:9b334a45a8ff	1569	/* Wait until TEACK flag is set */
bogdanm	0:9b334a45a8ff	1570	if(USART_WaitOnFlagUntilTimeout(husart, USART_ISR_TEACK, RESET, USART_TEACK_REACK_TIMEOUT) != HAL_OK)
bogdanm	0:9b334a45a8ff	1571	{
bogdanm	0:9b334a45a8ff	1572	/* Timeout occurred */
bogdanm	0:9b334a45a8ff	1573	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	1574	}
bogdanm	0:9b334a45a8ff	1575	}
bogdanm	0:9b334a45a8ff	1576	/* Check if the Receiver is enabled */
bogdanm	0:9b334a45a8ff	1577	if((husart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
bogdanm	0:9b334a45a8ff	1578	{
bogdanm	0:9b334a45a8ff	1579	/* Wait until REACK flag is set */
bogdanm	0:9b334a45a8ff	1580	if(USART_WaitOnFlagUntilTimeout(husart, USART_ISR_REACK, RESET, USART_TEACK_REACK_TIMEOUT) != HAL_OK)
bogdanm	0:9b334a45a8ff	1581	{
bogdanm	0:9b334a45a8ff	1582	/* Timeout occurred */
bogdanm	0:9b334a45a8ff	1583	return HAL_TIMEOUT;
bogdanm	0:9b334a45a8ff	1584	}
bogdanm	0:9b334a45a8ff	1585	}
bogdanm	0:9b334a45a8ff	1586
bogdanm	0:9b334a45a8ff	1587	/* Initialize the USART state*/
bogdanm	0:9b334a45a8ff	1588	husart->State= HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1589
bogdanm	0:9b334a45a8ff	1590	/* Process Unlocked */
bogdanm	0:9b334a45a8ff	1591	__HAL_UNLOCK(husart);
bogdanm	0:9b334a45a8ff	1592
bogdanm	0:9b334a45a8ff	1593	return HAL_OK;
bogdanm	0:9b334a45a8ff	1594	}
bogdanm	0:9b334a45a8ff	1595
bogdanm	0:9b334a45a8ff	1596	/**
bogdanm	0:9b334a45a8ff	1597	* @brief Simplex send an amount of data in non-blocking mode.
bogdanm	0:9b334a45a8ff	1598	* @note Function called under interruption only, once
bogdanm	0:9b334a45a8ff	1599	* interruptions have been enabled by HAL_USART_Transmit_IT().
bogdanm	0:9b334a45a8ff	1600	* @note The USART errors are not managed to avoid the overrun error.
bogdanm	0:9b334a45a8ff	1601	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1602	* @retval HAL status
bogdanm	0:9b334a45a8ff	1603	*/
bogdanm	0:9b334a45a8ff	1604	static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1605	{
bogdanm	0:9b334a45a8ff	1606	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	1607
bogdanm	0:9b334a45a8ff	1608	if(husart->State == HAL_USART_STATE_BUSY_TX)
bogdanm	0:9b334a45a8ff	1609	{
bogdanm	0:9b334a45a8ff	1610
bogdanm	0:9b334a45a8ff	1611	if(husart->TxXferCount == 0)
bogdanm	0:9b334a45a8ff	1612	{
bogdanm	0:9b334a45a8ff	1613	/* Disable the USART Transmit Complete Interrupt */
bogdanm	0:9b334a45a8ff	1614	__HAL_USART_DISABLE_IT(husart, USART_IT_TXE);
bogdanm	0:9b334a45a8ff	1615
bogdanm	0:9b334a45a8ff	1616	/* Enable the USART Transmit Complete Interrupt */
bogdanm	0:9b334a45a8ff	1617	__HAL_USART_ENABLE_IT(husart, USART_IT_TC);
bogdanm	0:9b334a45a8ff	1618
bogdanm	0:9b334a45a8ff	1619	return HAL_OK;
bogdanm	0:9b334a45a8ff	1620	}
bogdanm	0:9b334a45a8ff	1621	else
bogdanm	0:9b334a45a8ff	1622	{
bogdanm	0:9b334a45a8ff	1623	if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE))
bogdanm	0:9b334a45a8ff	1624	{
bogdanm	0:9b334a45a8ff	1625	tmp = (uint16_t*) husart->pTxBuffPtr;
bogdanm	0:9b334a45a8ff	1626	husart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
bogdanm	0:9b334a45a8ff	1627	husart->pTxBuffPtr += 2;
bogdanm	0:9b334a45a8ff	1628	}
bogdanm	0:9b334a45a8ff	1629	else
bogdanm	0:9b334a45a8ff	1630	{
bogdanm	0:9b334a45a8ff	1631	husart->Instance->TDR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)0xFF);
bogdanm	0:9b334a45a8ff	1632	}
bogdanm	0:9b334a45a8ff	1633
bogdanm	0:9b334a45a8ff	1634	husart->TxXferCount--;
bogdanm	0:9b334a45a8ff	1635
bogdanm	0:9b334a45a8ff	1636	return HAL_OK;
bogdanm	0:9b334a45a8ff	1637	}
bogdanm	0:9b334a45a8ff	1638	}
bogdanm	0:9b334a45a8ff	1639	else
bogdanm	0:9b334a45a8ff	1640	{
bogdanm	0:9b334a45a8ff	1641	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	1642	}
bogdanm	0:9b334a45a8ff	1643	}
bogdanm	0:9b334a45a8ff	1644
bogdanm	0:9b334a45a8ff	1645
bogdanm	0:9b334a45a8ff	1646	/**
bogdanm	0:9b334a45a8ff	1647	* @brief Wraps up transmission in non-blocking mode.
bogdanm	0:9b334a45a8ff	1648	* @param husart: pointer to a USART_HandleTypeDef structure that contains
bogdanm	0:9b334a45a8ff	1649	* the configuration information for the specified USART module.
bogdanm	0:9b334a45a8ff	1650	* @retval HAL status
bogdanm	0:9b334a45a8ff	1651	*/
bogdanm	0:9b334a45a8ff	1652	static HAL_StatusTypeDef USART_EndTransmit_IT(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1653	{
bogdanm	0:9b334a45a8ff	1654	/* Disable the USART Transmit Complete Interrupt */
bogdanm	0:9b334a45a8ff	1655	__HAL_USART_DISABLE_IT(husart, USART_IT_TC);
bogdanm	0:9b334a45a8ff	1656
bogdanm	0:9b334a45a8ff	1657	/* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm	0:9b334a45a8ff	1658	__HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm	0:9b334a45a8ff	1659
bogdanm	0:9b334a45a8ff	1660	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1661
bogdanm	0:9b334a45a8ff	1662	HAL_USART_TxCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1663
bogdanm	0:9b334a45a8ff	1664	return HAL_OK;
bogdanm	0:9b334a45a8ff	1665	}
bogdanm	0:9b334a45a8ff	1666
bogdanm	0:9b334a45a8ff	1667
bogdanm	0:9b334a45a8ff	1668	/**
bogdanm	0:9b334a45a8ff	1669	* @brief Simplex receive an amount of data in non-blocking mode.
bogdanm	0:9b334a45a8ff	1670	* @note Function called under interruption only, once
bogdanm	0:9b334a45a8ff	1671	* interruptions have been enabled by HAL_USART_Receive_IT().
bogdanm	0:9b334a45a8ff	1672	* @param husart: USART handle
bogdanm	0:9b334a45a8ff	1673	* @retval HAL status
bogdanm	0:9b334a45a8ff	1674	*/
bogdanm	0:9b334a45a8ff	1675	static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1676	{
bogdanm	0:9b334a45a8ff	1677	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	1678	uint16_t uhMask = husart->Mask;
bogdanm	0:9b334a45a8ff	1679
bogdanm	0:9b334a45a8ff	1680	if(husart->State == HAL_USART_STATE_BUSY_RX)
bogdanm	0:9b334a45a8ff	1681	{
bogdanm	0:9b334a45a8ff	1682
bogdanm	0:9b334a45a8ff	1683	if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE))
bogdanm	0:9b334a45a8ff	1684	{
bogdanm	0:9b334a45a8ff	1685	tmp = (uint16_t*) husart->pRxBuffPtr;
bogdanm	0:9b334a45a8ff	1686	*tmp = (uint16_t)(husart->Instance->RDR & uhMask);
bogdanm	0:9b334a45a8ff	1687	husart->pRxBuffPtr += 2;
bogdanm	0:9b334a45a8ff	1688	}
bogdanm	0:9b334a45a8ff	1689	else
bogdanm	0:9b334a45a8ff	1690	{
bogdanm	0:9b334a45a8ff	1691	*husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->RDR & (uint8_t)uhMask);
bogdanm	0:9b334a45a8ff	1692	}
bogdanm	0:9b334a45a8ff	1693	/* Send dummy byte in order to generate the clock for the Slave to Send the next data */
bogdanm	0:9b334a45a8ff	1694	husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x00FF);
bogdanm	0:9b334a45a8ff	1695
bogdanm	0:9b334a45a8ff	1696	if(--husart->RxXferCount == 0)
bogdanm	0:9b334a45a8ff	1697	{
bogdanm	0:9b334a45a8ff	1698	__HAL_USART_DISABLE_IT(husart, USART_IT_RXNE);
bogdanm	0:9b334a45a8ff	1699
bogdanm	0:9b334a45a8ff	1700	/* Disable the USART Parity Error Interrupt */
bogdanm	0:9b334a45a8ff	1701	__HAL_USART_DISABLE_IT(husart, USART_IT_PE);
bogdanm	0:9b334a45a8ff	1702
bogdanm	0:9b334a45a8ff	1703	/* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm	0:9b334a45a8ff	1704	__HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm	0:9b334a45a8ff	1705
bogdanm	0:9b334a45a8ff	1706	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1707
bogdanm	0:9b334a45a8ff	1708	HAL_USART_RxCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1709
bogdanm	0:9b334a45a8ff	1710	return HAL_OK;
bogdanm	0:9b334a45a8ff	1711	}
bogdanm	0:9b334a45a8ff	1712
bogdanm	0:9b334a45a8ff	1713	return HAL_OK;
bogdanm	0:9b334a45a8ff	1714	}
bogdanm	0:9b334a45a8ff	1715	else
bogdanm	0:9b334a45a8ff	1716	{
bogdanm	0:9b334a45a8ff	1717	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	1718	}
bogdanm	0:9b334a45a8ff	1719	}
bogdanm	0:9b334a45a8ff	1720
bogdanm	0:9b334a45a8ff	1721	/**
bogdanm	0:9b334a45a8ff	1722	* @brief Full-Duplex Send receive an amount of data in full-duplex mode (non-blocking).
bogdanm	0:9b334a45a8ff	1723	* @note Function called under interruption only, once
bogdanm	0:9b334a45a8ff	1724	* interruptions have been enabled by HAL_USART_TransmitReceive_IT().
bogdanm	0:9b334a45a8ff	1725	* @param husart: USART handle.
bogdanm	0:9b334a45a8ff	1726	* @retval HAL status
bogdanm	0:9b334a45a8ff	1727	*/
bogdanm	0:9b334a45a8ff	1728	static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart)
bogdanm	0:9b334a45a8ff	1729	{
bogdanm	0:9b334a45a8ff	1730	uint16_t* tmp;
bogdanm	0:9b334a45a8ff	1731	uint16_t uhMask = husart->Mask;
bogdanm	0:9b334a45a8ff	1732
bogdanm	0:9b334a45a8ff	1733	if(husart->State == HAL_USART_STATE_BUSY_TX_RX)
bogdanm	0:9b334a45a8ff	1734	{
bogdanm	0:9b334a45a8ff	1735
bogdanm	0:9b334a45a8ff	1736	if(husart->TxXferCount != 0x00)
bogdanm	0:9b334a45a8ff	1737	{
bogdanm	0:9b334a45a8ff	1738	if(__HAL_USART_GET_FLAG(husart, USART_FLAG_TXE) != RESET)
bogdanm	0:9b334a45a8ff	1739	{
bogdanm	0:9b334a45a8ff	1740	if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE))
bogdanm	0:9b334a45a8ff	1741	{
bogdanm	0:9b334a45a8ff	1742	tmp = (uint16_t*) husart->pTxBuffPtr;
bogdanm	0:9b334a45a8ff	1743	husart->Instance->TDR = (uint16_t)(*tmp & uhMask);
bogdanm	0:9b334a45a8ff	1744	husart->pTxBuffPtr += 2;
bogdanm	0:9b334a45a8ff	1745	}
bogdanm	0:9b334a45a8ff	1746	else
bogdanm	0:9b334a45a8ff	1747	{
bogdanm	0:9b334a45a8ff	1748	husart->Instance->TDR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)uhMask);
bogdanm	0:9b334a45a8ff	1749	}
bogdanm	0:9b334a45a8ff	1750	husart->TxXferCount--;
bogdanm	0:9b334a45a8ff	1751
bogdanm	0:9b334a45a8ff	1752	/* Check the latest data transmitted */
bogdanm	0:9b334a45a8ff	1753	if(husart->TxXferCount == 0)
bogdanm	0:9b334a45a8ff	1754	{
bogdanm	0:9b334a45a8ff	1755	__HAL_USART_DISABLE_IT(husart, USART_IT_TXE);
bogdanm	0:9b334a45a8ff	1756	}
bogdanm	0:9b334a45a8ff	1757	}
bogdanm	0:9b334a45a8ff	1758	}
bogdanm	0:9b334a45a8ff	1759
bogdanm	0:9b334a45a8ff	1760	if(husart->RxXferCount != 0x00)
bogdanm	0:9b334a45a8ff	1761	{
bogdanm	0:9b334a45a8ff	1762	if(__HAL_USART_GET_FLAG(husart, USART_FLAG_RXNE) != RESET)
bogdanm	0:9b334a45a8ff	1763	{
bogdanm	0:9b334a45a8ff	1764	if((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE))
bogdanm	0:9b334a45a8ff	1765	{
bogdanm	0:9b334a45a8ff	1766	tmp = (uint16_t*) husart->pRxBuffPtr;
bogdanm	0:9b334a45a8ff	1767	*tmp = (uint16_t)(husart->Instance->RDR & uhMask);
bogdanm	0:9b334a45a8ff	1768	husart->pRxBuffPtr += 2;
bogdanm	0:9b334a45a8ff	1769	}
bogdanm	0:9b334a45a8ff	1770	else
bogdanm	0:9b334a45a8ff	1771	{
bogdanm	0:9b334a45a8ff	1772	*husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->RDR & (uint8_t)uhMask);
bogdanm	0:9b334a45a8ff	1773	}
bogdanm	0:9b334a45a8ff	1774	husart->RxXferCount--;
bogdanm	0:9b334a45a8ff	1775	}
bogdanm	0:9b334a45a8ff	1776	}
bogdanm	0:9b334a45a8ff	1777
bogdanm	0:9b334a45a8ff	1778	/* Check the latest data received */
bogdanm	0:9b334a45a8ff	1779	if(husart->RxXferCount == 0)
bogdanm	0:9b334a45a8ff	1780	{
bogdanm	0:9b334a45a8ff	1781	__HAL_USART_DISABLE_IT(husart, USART_IT_RXNE);
bogdanm	0:9b334a45a8ff	1782
bogdanm	0:9b334a45a8ff	1783	/* Disable the USART Parity Error Interrupt */
bogdanm	0:9b334a45a8ff	1784	__HAL_USART_DISABLE_IT(husart, USART_IT_PE);
bogdanm	0:9b334a45a8ff	1785
bogdanm	0:9b334a45a8ff	1786	/* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
bogdanm	0:9b334a45a8ff	1787	__HAL_USART_DISABLE_IT(husart, USART_IT_ERR);
bogdanm	0:9b334a45a8ff	1788
bogdanm	0:9b334a45a8ff	1789	husart->State = HAL_USART_STATE_READY;
bogdanm	0:9b334a45a8ff	1790
bogdanm	0:9b334a45a8ff	1791	HAL_USART_TxRxCpltCallback(husart);
bogdanm	0:9b334a45a8ff	1792
bogdanm	0:9b334a45a8ff	1793	return HAL_OK;
bogdanm	0:9b334a45a8ff	1794	}
bogdanm	0:9b334a45a8ff	1795
bogdanm	0:9b334a45a8ff	1796	return HAL_OK;
bogdanm	0:9b334a45a8ff	1797	}
bogdanm	0:9b334a45a8ff	1798	else
bogdanm	0:9b334a45a8ff	1799	{
bogdanm	0:9b334a45a8ff	1800	return HAL_BUSY;
bogdanm	0:9b334a45a8ff	1801	}
bogdanm	0:9b334a45a8ff	1802	}
bogdanm	0:9b334a45a8ff	1803
bogdanm	0:9b334a45a8ff	1804	/**
bogdanm	0:9b334a45a8ff	1805	* @}
bogdanm	0:9b334a45a8ff	1806	*/
bogdanm	0:9b334a45a8ff	1807
bogdanm	0:9b334a45a8ff	1808	#endif /* HAL_USART_MODULE_ENABLED */
bogdanm	0:9b334a45a8ff	1809	/**
bogdanm	0:9b334a45a8ff	1810	* @}
bogdanm	0:9b334a45a8ff	1811	*/
bogdanm	0:9b334a45a8ff	1812
bogdanm	0:9b334a45a8ff	1813	/**
bogdanm	0:9b334a45a8ff	1814	* @}
bogdanm	0:9b334a45a8ff	1815	*/
bogdanm	0:9b334a45a8ff	1816
bogdanm	0:9b334a45a8ff	1817	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Library
Created:	16 May 2016
Imports:	1
Forks:	0
Commits:	130
Dependents:	1
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targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_usart.c@0:9b334a45a8ff, 2015-10-01 (annotated)

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