2559 lines
88 KiB
C
2559 lines
88 KiB
C
|
/**
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******************************************************************************
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* @file stm32f1xx_hal_uart.c
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* @author MCD Application Team
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* @version V1.1.1
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* @date 12-May-2017
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* @brief UART HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of the Universal Asynchronous Receiver Transmitter (UART) peripheral:
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* + Initialization and de-initialization functions
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* + IO operation functions
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* + Peripheral Control functions
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* + Peripheral State and Errors functions
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@verbatim
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==============================================================================
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##### How to use this driver #####
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==============================================================================
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[..]
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The UART HAL driver can be used as follows:
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(#) Declare a UART_HandleTypeDef handle structure.
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(#) Initialize the UART low level resources by implementing the HAL_UART_MspInit() API:
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(##) Enable the USARTx interface clock.
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(##) UART pins configuration:
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(+++) Enable the clock for the UART GPIOs.
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(+++) Configure the UART pins (TX as alternate function pull-up, RX as alternate function Input).
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(##) NVIC configuration if you need to use interrupt process (HAL_UART_Transmit_IT()
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and HAL_UART_Receive_IT() APIs):
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(+++) Configure the USARTx interrupt priority.
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(+++) Enable the NVIC USART IRQ handle.
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(##) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA()
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and HAL_UART_Receive_DMA() APIs):
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(+++) Declare a DMA handle structure for the Tx/Rx channel.
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(+++) Enable the DMAx interface clock.
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(+++) Configure the declared DMA handle structure with the required
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Tx/Rx parameters.
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(+++) Configure the DMA Tx/Rx channel.
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(+++) Associate the initialized DMA handle to the UART DMA Tx/Rx handle.
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(+++) Configure the priority and enable the NVIC for the transfer complete
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interrupt on the DMA Tx/Rx channel.
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(+++) Configure the USARTx interrupt priority and enable the NVIC USART IRQ handle
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(used for last byte sending completion detection in DMA non circular mode)
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(#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
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flow control and Mode(Receiver/Transmitter) in the huart Init structure.
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(#) For the UART asynchronous mode, initialize the UART registers by calling
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the HAL_UART_Init() API.
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(#) For the UART Half duplex mode, initialize the UART registers by calling
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the HAL_HalfDuplex_Init() API.
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(#) For the LIN mode, initialize the UART registers by calling the HAL_LIN_Init() API.
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(#) For the Multi-Processor mode, initialize the UART registers by calling
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the HAL_MultiProcessor_Init() API.
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[..]
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(@) The specific UART interrupts (Transmission complete interrupt,
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RXNE interrupt and Error Interrupts) will be managed using the macros
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__HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the transmit
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and receive process.
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[..]
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(@) These APIs (HAL_UART_Init() and HAL_HalfDuplex_Init()) configure also the
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low level Hardware GPIO, CLOCK, CORTEX...etc) by calling the customized
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HAL_UART_MspInit() API.
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[..]
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Three operation modes are available within this driver:
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*** Polling mode IO operation ***
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=================================
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[..]
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(+) Send an amount of data in blocking mode using HAL_UART_Transmit()
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(+) Receive an amount of data in blocking mode using HAL_UART_Receive()
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*** Interrupt mode IO operation ***
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===================================
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[..]
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(+) Send an amount of data in non blocking mode using HAL_UART_Transmit_IT()
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(+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_UART_TxCpltCallback
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(+) Receive an amount of data in non blocking mode using HAL_UART_Receive_IT()
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(+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_UART_RxCpltCallback
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(+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
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add his own code by customization of function pointer HAL_UART_ErrorCallback
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*** DMA mode IO operation ***
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==============================
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[..]
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(+) Send an amount of data in non blocking mode (DMA) using HAL_UART_Transmit_DMA()
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(+) At transmission end of half transfer HAL_UART_TxHalfCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_UART_TxHalfCpltCallback
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(+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_UART_TxCpltCallback
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(+) Receive an amount of data in non blocking mode (DMA) using HAL_UART_Receive_DMA()
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(+) At reception end of half transfer HAL_UART_RxHalfCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_UART_RxHalfCpltCallback
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(+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_UART_RxCpltCallback
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(+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
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add his own code by customization of function pointer HAL_UART_ErrorCallback
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(+) Pause the DMA Transfer using HAL_UART_DMAPause()
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(+) Resume the DMA Transfer using HAL_UART_DMAResume()
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(+) Stop the DMA Transfer using HAL_UART_DMAStop()
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*** UART HAL driver macros list ***
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=============================================
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[..]
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Below the list of most used macros in UART HAL driver.
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(+) __HAL_UART_ENABLE: Enable the UART peripheral
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(+) __HAL_UART_DISABLE: Disable the UART peripheral
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(+) __HAL_UART_GET_FLAG : Check whether the specified UART flag is set or not
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(+) __HAL_UART_CLEAR_FLAG : Clear the specified UART pending flag
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(+) __HAL_UART_ENABLE_IT: Enable the specified UART interrupt
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(+) __HAL_UART_DISABLE_IT: Disable the specified UART interrupt
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(+) __HAL_UART_GET_IT_SOURCE: Check whether the specified UART interrupt has occurred or not
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[..]
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(@) You can refer to the UART HAL driver header file for more useful macros
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@endverbatim
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[..]
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(@) Additionnal remark: If the parity is enabled, then the MSB bit of the data written
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in the data register is transmitted but is changed by the parity bit.
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Depending on the frame length defined by the M bit (8-bits or 9-bits),
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the possible UART frame formats are as listed in the following table:
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+-------------------------------------------------------------+
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| M bit | PCE bit | UART frame |
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|---------------------|---------------------------------------|
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| 0 | 0 | | SB | 8 bit data | STB | |
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|---------|-----------|---------------------------------------|
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| 0 | 1 | | SB | 7 bit data | PB | STB | |
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|---------|-----------|---------------------------------------|
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| 1 | 0 | | SB | 9 bit data | STB | |
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|---------|-----------|---------------------------------------|
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| 1 | 1 | | SB | 8 bit data | PB | STB | |
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+-------------------------------------------------------------+
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f1xx_hal.h"
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/** @addtogroup STM32F1xx_HAL_Driver
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* @{
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*/
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/** @defgroup UART UART
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* @brief HAL UART module driver
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* @{
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*/
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#ifdef HAL_UART_MODULE_ENABLED
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/** @addtogroup UART_Private_Constants
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* @{
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*/
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/**
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* @}
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*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/** @addtogroup UART_Private_Functions
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* @{
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*/
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static void UART_EndTxTransfer(UART_HandleTypeDef *huart);
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static void UART_EndRxTransfer(UART_HandleTypeDef *huart);
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static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
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static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
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static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
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static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
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static void UART_DMAError(DMA_HandleTypeDef *hdma);
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static void UART_DMAAbortOnError(DMA_HandleTypeDef *hdma);
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static void UART_DMATxAbortCallback(DMA_HandleTypeDef *hdma);
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static void UART_DMARxAbortCallback(DMA_HandleTypeDef *hdma);
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static void UART_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
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static void UART_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma);
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static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart);
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static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart);
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static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart);
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static HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout);
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static void UART_SetConfig (UART_HandleTypeDef *huart);
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/**
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* @}
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*/
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/* Exported functions ---------------------------------------------------------*/
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/** @defgroup UART_Exported_Functions UART Exported Functions
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* @{
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*/
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/** @defgroup UART_Exported_Functions_Group1 Initialization and de-initialization functions
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* @brief Initialization and Configuration functions
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*
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@verbatim
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==============================================================================
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##### Initialization and Configuration functions #####
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==============================================================================
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[..]
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This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
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in asynchronous mode.
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(+) For the asynchronous mode only these parameters can be configured:
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(++) Baud Rate
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(++) Word Length
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(++) Stop Bit
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(++) Parity: If the parity is enabled, then the MSB bit of the data written
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in the data register is transmitted but is changed by the parity bit.
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Depending on the frame length defined by the M bit (8-bits or 9-bits),
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please refer to Reference manual for possible UART frame formats.
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(++) Hardware flow control
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(++) Receiver/transmitter modes
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(++) Over Sampling Method
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[..]
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The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init() and HAL_MultiProcessor_Init() APIs
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follow respectively the UART asynchronous, UART Half duplex, LIN and Multi-Processor
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configuration procedures (details for the procedures are available in reference manuals
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(RM0008 for STM32F10Xxx MCUs and RM0041 for STM32F100xx MCUs)).
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@endverbatim
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* @{
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*/
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/**
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* @brief Initializes the UART mode according to the specified parameters in
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* the UART_InitTypeDef and create the associated handle.
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* @param huart: pointer to a UART_HandleTypeDef structure that contains
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* the configuration information for the specified UART module.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
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{
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/* Check the UART handle allocation */
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if(huart == NULL)
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{
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return HAL_ERROR;
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}
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/* Check the parameters */
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if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
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{
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/* The hardware flow control is available only for USART1, USART2, USART3 */
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assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
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assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
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}
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else
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{
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assert_param(IS_UART_INSTANCE(huart->Instance));
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}
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assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
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#if defined(USART_CR1_OVER8)
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assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
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#endif /* USART_CR1_OVER8 */
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if(huart->gState == HAL_UART_STATE_RESET)
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{
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/* Allocate lock resource and initialize it */
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huart->Lock = HAL_UNLOCKED;
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/* Init the low level hardware */
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HAL_UART_MspInit(huart);
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}
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huart->gState = HAL_UART_STATE_BUSY;
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/* Disable the peripheral */
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__HAL_UART_DISABLE(huart);
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/* Set the UART Communication parameters */
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UART_SetConfig(huart);
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/* In asynchronous mode, the following bits must be kept cleared:
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- LINEN and CLKEN bits in the USART_CR2 register,
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- SCEN, HDSEL and IREN bits in the USART_CR3 register.*/
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CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN));
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CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN));
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/* Enable the peripheral */
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__HAL_UART_ENABLE(huart);
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/* Initialize the UART state */
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huart->ErrorCode = HAL_UART_ERROR_NONE;
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huart->gState= HAL_UART_STATE_READY;
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huart->RxState= HAL_UART_STATE_READY;
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return HAL_OK;
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}
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/**
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* @brief Initializes the half-duplex mode according to the specified
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* parameters in the UART_InitTypeDef and create the associated handle.
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* @param huart: pointer to a UART_HandleTypeDef structure that contains
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* the configuration information for the specified UART module.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
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{
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/* Check the UART handle allocation */
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if(huart == NULL)
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{
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return HAL_ERROR;
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}
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/* Check the parameters */
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assert_param(IS_UART_HALFDUPLEX_INSTANCE(huart->Instance));
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assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
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#if defined(USART_CR1_OVER8)
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assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
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#endif /* USART_CR1_OVER8 */
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if(huart->gState == HAL_UART_STATE_RESET)
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{
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/* Allocate lock resource and initialize it */
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huart->Lock = HAL_UNLOCKED;
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/* Init the low level hardware */
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HAL_UART_MspInit(huart);
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}
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huart->gState = HAL_UART_STATE_BUSY;
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/* Disable the peripheral */
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__HAL_UART_DISABLE(huart);
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/* Set the UART Communication parameters */
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UART_SetConfig(huart);
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/* In half-duplex mode, the following bits must be kept cleared:
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- LINEN and CLKEN bits in the USART_CR2 register,
|
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- SCEN and IREN bits in the USART_CR3 register.*/
|
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CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN));
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CLEAR_BIT(huart->Instance->CR3, (USART_CR3_IREN | USART_CR3_SCEN));
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/* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */
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SET_BIT(huart->Instance->CR3, USART_CR3_HDSEL);
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/* Enable the peripheral */
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__HAL_UART_ENABLE(huart);
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/* Initialize the UART state*/
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||
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huart->ErrorCode = HAL_UART_ERROR_NONE;
|
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huart->gState= HAL_UART_STATE_READY;
|
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huart->RxState= HAL_UART_STATE_READY;
|
||
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return HAL_OK;
|
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|
}
|
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|
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|
/**
|
||
|
* @brief Initializes the LIN mode according to the specified
|
||
|
* parameters in the UART_InitTypeDef and create the associated handle.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @param BreakDetectLength: Specifies the LIN break detection length.
|
||
|
* This parameter can be one of the following values:
|
||
|
* @arg UART_LINBREAKDETECTLENGTH_10B: 10-bit break detection
|
||
|
* @arg UART_LINBREAKDETECTLENGTH_11B: 11-bit break detection
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength)
|
||
|
{
|
||
|
/* Check the UART handle allocation */
|
||
|
if(huart == NULL)
|
||
|
{
|
||
|
return HAL_ERROR;
|
||
|
}
|
||
|
|
||
|
/* Check the LIN UART instance */
|
||
|
assert_param(IS_UART_LIN_INSTANCE(huart->Instance));
|
||
|
/* Check the Break detection length parameter */
|
||
|
assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength));
|
||
|
assert_param(IS_UART_LIN_WORD_LENGTH(huart->Init.WordLength));
|
||
|
#if defined(USART_CR1_OVER8)
|
||
|
assert_param(IS_UART_LIN_OVERSAMPLING(huart->Init.OverSampling));
|
||
|
#endif /* USART_CR1_OVER8 */
|
||
|
|
||
|
if(huart->gState == HAL_UART_STATE_RESET)
|
||
|
{
|
||
|
/* Allocate lock resource and initialize it */
|
||
|
huart->Lock = HAL_UNLOCKED;
|
||
|
/* Init the low level hardware */
|
||
|
HAL_UART_MspInit(huart);
|
||
|
}
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_BUSY;
|
||
|
|
||
|
/* Disable the peripheral */
|
||
|
__HAL_UART_DISABLE(huart);
|
||
|
|
||
|
/* Set the UART Communication parameters */
|
||
|
UART_SetConfig(huart);
|
||
|
|
||
|
/* In LIN mode, the following bits must be kept cleared:
|
||
|
- CLKEN bits in the USART_CR2 register,
|
||
|
- SCEN and IREN bits in the USART_CR3 register.*/
|
||
|
CLEAR_BIT(huart->Instance->CR2, USART_CR2_CLKEN);
|
||
|
CLEAR_BIT(huart->Instance->CR3, (USART_CR3_HDSEL | USART_CR3_IREN | USART_CR3_SCEN));
|
||
|
|
||
|
/* Enable the LIN mode by setting the LINEN bit in the CR2 register */
|
||
|
SET_BIT(huart->Instance->CR2, USART_CR2_LINEN);
|
||
|
|
||
|
/* Set the USART LIN Break detection length. */
|
||
|
MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength);
|
||
|
|
||
|
/* Enable the peripheral */
|
||
|
__HAL_UART_ENABLE(huart);
|
||
|
|
||
|
/* Initialize the UART state*/
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
huart->gState= HAL_UART_STATE_READY;
|
||
|
huart->RxState= HAL_UART_STATE_READY;
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Initializes the Multi-Processor mode according to the specified
|
||
|
* parameters in the UART_InitTypeDef and create the associated handle.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @param Address: USART address
|
||
|
* @param WakeUpMethod: specifies the USART wake-up method.
|
||
|
* This parameter can be one of the following values:
|
||
|
* @arg UART_WAKEUPMETHOD_IDLELINE: Wake-up by an idle line detection
|
||
|
* @arg UART_WAKEUPMETHOD_ADDRESSMARK: Wake-up by an address mark
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod)
|
||
|
{
|
||
|
/* Check the UART handle allocation */
|
||
|
if(huart == NULL)
|
||
|
{
|
||
|
return HAL_ERROR;
|
||
|
}
|
||
|
|
||
|
/* Check UART instance capabilities */
|
||
|
assert_param(IS_UART_MULTIPROCESSOR_INSTANCE(huart->Instance));
|
||
|
|
||
|
/* Check the Address & wake up method parameters */
|
||
|
assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
|
||
|
assert_param(IS_UART_ADDRESS(Address));
|
||
|
assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
|
||
|
#if defined(USART_CR1_OVER8)
|
||
|
assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling));
|
||
|
#endif /* USART_CR1_OVER8 */
|
||
|
|
||
|
if(huart->gState == HAL_UART_STATE_RESET)
|
||
|
{
|
||
|
/* Allocate lock resource and initialize it */
|
||
|
huart->Lock = HAL_UNLOCKED;
|
||
|
/* Init the low level hardware */
|
||
|
HAL_UART_MspInit(huart);
|
||
|
}
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_BUSY;
|
||
|
|
||
|
/* Disable the peripheral */
|
||
|
__HAL_UART_DISABLE(huart);
|
||
|
|
||
|
/* Set the UART Communication parameters */
|
||
|
UART_SetConfig(huart);
|
||
|
|
||
|
/* In Multi-Processor mode, the following bits must be kept cleared:
|
||
|
- LINEN and CLKEN bits in the USART_CR2 register,
|
||
|
- SCEN, HDSEL and IREN bits in the USART_CR3 register */
|
||
|
CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN));
|
||
|
CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN));
|
||
|
|
||
|
/* Set the USART address node */
|
||
|
MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, Address);
|
||
|
|
||
|
/* Set the wake up method by setting the WAKE bit in the CR1 register */
|
||
|
MODIFY_REG(huart->Instance->CR1, USART_CR1_WAKE, WakeUpMethod);
|
||
|
|
||
|
/* Enable the peripheral */
|
||
|
__HAL_UART_ENABLE(huart);
|
||
|
|
||
|
/* Initialize the UART state */
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DeInitializes the UART peripheral.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Check the UART handle allocation */
|
||
|
if(huart == NULL)
|
||
|
{
|
||
|
return HAL_ERROR;
|
||
|
}
|
||
|
|
||
|
/* Check the parameters */
|
||
|
assert_param(IS_UART_INSTANCE(huart->Instance));
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_BUSY;
|
||
|
|
||
|
/* DeInit the low level hardware */
|
||
|
HAL_UART_MspDeInit(huart);
|
||
|
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
huart->gState = HAL_UART_STATE_RESET;
|
||
|
huart->RxState = HAL_UART_STATE_RESET;
|
||
|
|
||
|
/* Process Unlock */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief UART MSP Init.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
/* NOTE: This function should not be modified, when the callback is needed,
|
||
|
the HAL_UART_MspInit could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief UART MSP DeInit.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
/* NOTE: This function should not be modified, when the callback is needed,
|
||
|
the HAL_UART_MspDeInit could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/** @defgroup UART_Exported_Functions_Group2 IO operation functions
|
||
|
* @brief UART Transmit and Receive functions
|
||
|
*
|
||
|
@verbatim
|
||
|
==============================================================================
|
||
|
##### IO operation functions #####
|
||
|
==============================================================================
|
||
|
[..]
|
||
|
This subsection provides a set of functions allowing to manage the UART asynchronous
|
||
|
and Half duplex data transfers.
|
||
|
|
||
|
(#) There are two modes of transfer:
|
||
|
(++) Blocking mode: The communication is performed in polling mode.
|
||
|
The HAL status of all data processing is returned by the same function
|
||
|
after finishing transfer.
|
||
|
(++) Non blocking mode: The communication is performed using Interrupts
|
||
|
or DMA, these APIs return the HAL status.
|
||
|
The end of the data processing will be indicated through the
|
||
|
dedicated UART IRQ when using Interrupt mode or the DMA IRQ when
|
||
|
using DMA mode.
|
||
|
The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks
|
||
|
will be executed respectively at the end of the transmit or receive process.
|
||
|
The HAL_UART_ErrorCallback() user callback will be executed when
|
||
|
a communication error is detected.
|
||
|
|
||
|
(#) Blocking mode APIs are:
|
||
|
(++) HAL_UART_Transmit()
|
||
|
(++) HAL_UART_Receive()
|
||
|
|
||
|
(#) Non Blocking mode APIs with Interrupt are:
|
||
|
(++) HAL_UART_Transmit_IT()
|
||
|
(++) HAL_UART_Receive_IT()
|
||
|
(++) HAL_UART_IRQHandler()
|
||
|
|
||
|
(#) Non Blocking mode functions with DMA are:
|
||
|
(++) HAL_UART_Transmit_DMA()
|
||
|
(++) HAL_UART_Receive_DMA()
|
||
|
(++) HAL_UART_DMAPause()
|
||
|
(++) HAL_UART_DMAResume()
|
||
|
(++) HAL_UART_DMAStop()
|
||
|
|
||
|
(#) A set of Transfer Complete Callbacks are provided in non blocking mode:
|
||
|
(++) HAL_UART_TxHalfCpltCallback()
|
||
|
(++) HAL_UART_TxCpltCallback()
|
||
|
(++) HAL_UART_RxHalfCpltCallback()
|
||
|
(++) HAL_UART_RxCpltCallback()
|
||
|
(++) HAL_UART_ErrorCallback()
|
||
|
|
||
|
[..]
|
||
|
(@) In the Half duplex communication, it is forbidden to run the transmit
|
||
|
and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX
|
||
|
can't be useful.
|
||
|
|
||
|
@endverbatim
|
||
|
* @{
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @brief Sends an amount of data in blocking mode.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @param pData: Pointer to data buffer
|
||
|
* @param Size: Amount of data to be sent
|
||
|
* @param Timeout: Timeout duration
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout)
|
||
|
{
|
||
|
uint16_t* tmp;
|
||
|
uint32_t tickstart = 0U;
|
||
|
|
||
|
/* Check that a Tx process is not already ongoing */
|
||
|
if(huart->gState == HAL_UART_STATE_READY)
|
||
|
{
|
||
|
if((pData == NULL) || (Size == 0U))
|
||
|
{
|
||
|
return HAL_ERROR;
|
||
|
}
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
huart->gState = HAL_UART_STATE_BUSY_TX;
|
||
|
|
||
|
/* Init tickstart for timeout managment */
|
||
|
tickstart = HAL_GetTick();
|
||
|
|
||
|
huart->TxXferSize = Size;
|
||
|
huart->TxXferCount = Size;
|
||
|
while(huart->TxXferCount > 0U)
|
||
|
{
|
||
|
huart->TxXferCount--;
|
||
|
if(huart->Init.WordLength == UART_WORDLENGTH_9B)
|
||
|
{
|
||
|
if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK)
|
||
|
{
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
tmp = (uint16_t*) pData;
|
||
|
huart->Instance->DR = (*tmp & (uint16_t)0x01FF);
|
||
|
if(huart->Init.Parity == UART_PARITY_NONE)
|
||
|
{
|
||
|
pData +=2U;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
pData +=1U;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK)
|
||
|
{
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
huart->Instance->DR = (*pData++ & (uint8_t)0xFF);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK)
|
||
|
{
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
|
||
|
/* At end of Tx process, restore huart->gState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return HAL_BUSY;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Receive an amount of data in blocking mode.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @param pData: Pointer to data buffer
|
||
|
* @param Size: Amount of data to be received
|
||
|
* @param Timeout: Timeout duration
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout)
|
||
|
{
|
||
|
uint16_t* tmp;
|
||
|
uint32_t tickstart = 0U;
|
||
|
|
||
|
/* Check that a Rx process is not already ongoing */
|
||
|
if(huart->RxState == HAL_UART_STATE_READY)
|
||
|
{
|
||
|
if((pData == NULL) || (Size == 0U))
|
||
|
{
|
||
|
return HAL_ERROR;
|
||
|
}
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
huart->RxState = HAL_UART_STATE_BUSY_RX;
|
||
|
|
||
|
/* Init tickstart for timeout managment */
|
||
|
tickstart = HAL_GetTick();
|
||
|
|
||
|
huart->RxXferSize = Size;
|
||
|
huart->RxXferCount = Size;
|
||
|
|
||
|
/* Check the remain data to be received */
|
||
|
while(huart->RxXferCount > 0U)
|
||
|
{
|
||
|
huart->RxXferCount--;
|
||
|
if(huart->Init.WordLength == UART_WORDLENGTH_9B)
|
||
|
{
|
||
|
if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK)
|
||
|
{
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
tmp = (uint16_t*)pData;
|
||
|
if(huart->Init.Parity == UART_PARITY_NONE)
|
||
|
{
|
||
|
*tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x01FF);
|
||
|
pData +=2U;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
*tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x00FF);
|
||
|
pData +=1U;
|
||
|
}
|
||
|
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK)
|
||
|
{
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
if(huart->Init.Parity == UART_PARITY_NONE)
|
||
|
{
|
||
|
*pData++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x00FF);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
*pData++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x007F);
|
||
|
}
|
||
|
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* At end of Rx process, restore huart->RxState to Ready */
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return HAL_BUSY;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Sends an amount of data in non blocking mode.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @param pData: Pointer to data buffer
|
||
|
* @param Size: Amount of data to be sent
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
|
||
|
{
|
||
|
/* Check that a Tx process is not already ongoing */
|
||
|
if(huart->gState == HAL_UART_STATE_READY)
|
||
|
{
|
||
|
if((pData == NULL) || (Size == 0U))
|
||
|
{
|
||
|
return HAL_ERROR;
|
||
|
}
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->pTxBuffPtr = pData;
|
||
|
huart->TxXferSize = Size;
|
||
|
huart->TxXferCount = Size;
|
||
|
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
huart->gState = HAL_UART_STATE_BUSY_TX;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
/* Enable the UART Transmit data register empty Interrupt */
|
||
|
__HAL_UART_ENABLE_IT(huart, UART_IT_TXE);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return HAL_BUSY;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Receives an amount of data in non blocking mode.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @param pData: Pointer to data buffer
|
||
|
* @param Size: Amount of data to be received
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
|
||
|
{
|
||
|
/* Check that a Rx process is not already ongoing */
|
||
|
if(huart->RxState == HAL_UART_STATE_READY)
|
||
|
{
|
||
|
if((pData == NULL) || (Size == 0U))
|
||
|
{
|
||
|
return HAL_ERROR;
|
||
|
}
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->pRxBuffPtr = pData;
|
||
|
huart->RxXferSize = Size;
|
||
|
huart->RxXferCount = Size;
|
||
|
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
huart->RxState = HAL_UART_STATE_BUSY_RX;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
/* Enable the UART Parity Error Interrupt */
|
||
|
__HAL_UART_ENABLE_IT(huart, UART_IT_PE);
|
||
|
|
||
|
/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
|
||
|
__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
|
||
|
|
||
|
/* Enable the UART Data Register not empty Interrupt */
|
||
|
__HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return HAL_BUSY;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Sends an amount of data in non blocking mode.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @param pData: Pointer to data buffer
|
||
|
* @param Size: Amount of data to be sent
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
|
||
|
{
|
||
|
uint32_t *tmp;
|
||
|
|
||
|
/* Check that a Tx process is not already ongoing */
|
||
|
if(huart->gState == HAL_UART_STATE_READY)
|
||
|
{
|
||
|
if((pData == NULL) || (Size == 0U))
|
||
|
{
|
||
|
return HAL_ERROR;
|
||
|
}
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->pTxBuffPtr = pData;
|
||
|
huart->TxXferSize = Size;
|
||
|
huart->TxXferCount = Size;
|
||
|
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
huart->gState = HAL_UART_STATE_BUSY_TX;
|
||
|
|
||
|
/* Set the UART DMA transfer complete callback */
|
||
|
huart->hdmatx->XferCpltCallback = UART_DMATransmitCplt;
|
||
|
|
||
|
/* Set the UART DMA Half transfer complete callback */
|
||
|
huart->hdmatx->XferHalfCpltCallback = UART_DMATxHalfCplt;
|
||
|
|
||
|
/* Set the DMA error callback */
|
||
|
huart->hdmatx->XferErrorCallback = UART_DMAError;
|
||
|
|
||
|
/* Set the DMA abort callback */
|
||
|
huart->hdmatx->XferAbortCallback = NULL;
|
||
|
|
||
|
/* Enable the UART transmit DMA channel */
|
||
|
tmp = (uint32_t*)&pData;
|
||
|
HAL_DMA_Start_IT(huart->hdmatx, *(uint32_t*)tmp, (uint32_t)&huart->Instance->DR, Size);
|
||
|
|
||
|
/* Clear the TC flag in the SR register by writing 0 to it */
|
||
|
__HAL_UART_CLEAR_FLAG(huart, UART_FLAG_TC);
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
/* Enable the DMA transfer for transmit request by setting the DMAT bit
|
||
|
in the UART CR3 register */
|
||
|
SET_BIT(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return HAL_BUSY;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Receives an amount of data in non blocking mode.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @param pData: Pointer to data buffer
|
||
|
* @param Size: Amount of data to be received
|
||
|
* @note When the UART parity is enabled (PCE = 1) the data received contain the parity bit.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
|
||
|
{
|
||
|
uint32_t *tmp;
|
||
|
|
||
|
/* Check that a Rx process is not already ongoing */
|
||
|
if(huart->RxState == HAL_UART_STATE_READY)
|
||
|
{
|
||
|
if((pData == NULL) || (Size == 0U))
|
||
|
{
|
||
|
return HAL_ERROR;
|
||
|
}
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->pRxBuffPtr = pData;
|
||
|
huart->RxXferSize = Size;
|
||
|
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
huart->RxState = HAL_UART_STATE_BUSY_RX;
|
||
|
|
||
|
/* Set the UART DMA transfer complete callback */
|
||
|
huart->hdmarx->XferCpltCallback = UART_DMAReceiveCplt;
|
||
|
|
||
|
/* Set the UART DMA Half transfer complete callback */
|
||
|
huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt;
|
||
|
|
||
|
/* Set the DMA error callback */
|
||
|
huart->hdmarx->XferErrorCallback = UART_DMAError;
|
||
|
|
||
|
/* Set the DMA abort callback */
|
||
|
huart->hdmarx->XferAbortCallback = NULL;
|
||
|
|
||
|
/* Enable the DMA channel */
|
||
|
tmp = (uint32_t*)&pData;
|
||
|
HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->DR, *(uint32_t*)tmp, Size);
|
||
|
|
||
|
/* Clear the Overrun flag just before enabling the DMA Rx request: can be mandatory for the second transfer */
|
||
|
__HAL_UART_CLEAR_OREFLAG(huart);
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
/* Enable the UART Parity Error Interrupt */
|
||
|
SET_BIT(huart->Instance->CR1, USART_CR1_PEIE);
|
||
|
|
||
|
/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
|
||
|
SET_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
/* Enable the DMA transfer for the receiver request by setting the DMAR bit
|
||
|
in the UART CR3 register */
|
||
|
SET_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return HAL_BUSY;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Pauses the DMA Transfer.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint32_t dmarequest = 0x00U;
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
if((huart->gState == HAL_UART_STATE_BUSY_TX) && dmarequest)
|
||
|
{
|
||
|
/* Disable the UART DMA Tx request */
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
}
|
||
|
|
||
|
dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
if((huart->RxState == HAL_UART_STATE_BUSY_RX) && dmarequest)
|
||
|
{
|
||
|
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE);
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
/* Disable the UART DMA Rx request */
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
}
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Resumes the DMA Transfer.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
if(huart->gState == HAL_UART_STATE_BUSY_TX)
|
||
|
{
|
||
|
/* Enable the UART DMA Tx request */
|
||
|
SET_BIT(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
}
|
||
|
|
||
|
if(huart->RxState == HAL_UART_STATE_BUSY_RX)
|
||
|
{
|
||
|
/* Clear the Overrun flag before resuming the Rx transfer*/
|
||
|
__HAL_UART_CLEAR_OREFLAG(huart);
|
||
|
|
||
|
/* Reenable PE and ERR (Frame error, noise error, overrun error) interrupts */
|
||
|
SET_BIT(huart->Instance->CR1, USART_CR1_PEIE);
|
||
|
SET_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
/* Enable the UART DMA Rx request */
|
||
|
SET_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
}
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Stops the DMA Transfer.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint32_t dmarequest = 0x00U;
|
||
|
/* The Lock is not implemented on this API to allow the user application
|
||
|
to call the HAL UART API under callbacks HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback():
|
||
|
when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
|
||
|
and the correspond call back is executed HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback()
|
||
|
*/
|
||
|
|
||
|
/* Stop UART DMA Tx request if ongoing */
|
||
|
dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
if((huart->gState == HAL_UART_STATE_BUSY_TX) && dmarequest)
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
|
||
|
/* Abort the UART DMA Tx channel */
|
||
|
if(huart->hdmatx != NULL)
|
||
|
{
|
||
|
HAL_DMA_Abort(huart->hdmatx);
|
||
|
}
|
||
|
UART_EndTxTransfer(huart);
|
||
|
}
|
||
|
|
||
|
/* Stop UART DMA Rx request if ongoing */
|
||
|
dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
if((huart->RxState == HAL_UART_STATE_BUSY_RX) && dmarequest)
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
|
||
|
/* Abort the UART DMA Rx channel */
|
||
|
if(huart->hdmarx != NULL)
|
||
|
{
|
||
|
HAL_DMA_Abort(huart->hdmarx);
|
||
|
}
|
||
|
UART_EndRxTransfer(huart);
|
||
|
}
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Abort ongoing transfers (blocking mode).
|
||
|
* @param huart UART handle.
|
||
|
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
|
||
|
* This procedure performs following operations :
|
||
|
* - Disable PPP Interrupts
|
||
|
* - Disable the DMA transfer in the peripheral register (if enabled)
|
||
|
* - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
|
||
|
* - Set handle State to READY
|
||
|
* @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
/* Disable the UART DMA Tx request if enabled */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
|
||
|
/* Abort the UART DMA Tx channel: use blocking DMA Abort API (no callback) */
|
||
|
if(huart->hdmatx != NULL)
|
||
|
{
|
||
|
/* Set the UART DMA Abort callback to Null.
|
||
|
No call back execution at end of DMA abort procedure */
|
||
|
huart->hdmatx->XferAbortCallback = NULL;
|
||
|
|
||
|
HAL_DMA_Abort(huart->hdmatx);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Disable the UART DMA Rx request if enabled */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
|
||
|
/* Abort the UART DMA Rx channel: use blocking DMA Abort API (no callback) */
|
||
|
if(huart->hdmarx != NULL)
|
||
|
{
|
||
|
/* Set the UART DMA Abort callback to Null.
|
||
|
No call back execution at end of DMA abort procedure */
|
||
|
huart->hdmarx->XferAbortCallback = NULL;
|
||
|
|
||
|
HAL_DMA_Abort(huart->hdmarx);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Reset Tx and Rx transfer counters */
|
||
|
huart->TxXferCount = 0x00U;
|
||
|
huart->RxXferCount = 0x00U;
|
||
|
|
||
|
/* Reset ErrorCode */
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
|
||
|
/* Restore huart->RxState and huart->gState to Ready */
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Abort ongoing Transmit transfer (blocking mode).
|
||
|
* @param huart UART handle.
|
||
|
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
|
||
|
* This procedure performs following operations :
|
||
|
* - Disable PPP Interrupts
|
||
|
* - Disable the DMA transfer in the peripheral register (if enabled)
|
||
|
* - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
|
||
|
* - Set handle State to READY
|
||
|
* @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Disable TXEIE and TCIE interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
|
||
|
|
||
|
/* Disable the UART DMA Tx request if enabled */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
|
||
|
/* Abort the UART DMA Tx channel : use blocking DMA Abort API (no callback) */
|
||
|
if(huart->hdmatx != NULL)
|
||
|
{
|
||
|
/* Set the UART DMA Abort callback to Null.
|
||
|
No call back execution at end of DMA abort procedure */
|
||
|
huart->hdmatx->XferAbortCallback = NULL;
|
||
|
|
||
|
HAL_DMA_Abort(huart->hdmatx);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Reset Tx transfer counter */
|
||
|
huart->TxXferCount = 0x00U;
|
||
|
|
||
|
/* Restore huart->gState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Abort ongoing Receive transfer (blocking mode).
|
||
|
* @param huart UART handle.
|
||
|
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
|
||
|
* This procedure performs following operations :
|
||
|
* - Disable PPP Interrupts
|
||
|
* - Disable the DMA transfer in the peripheral register (if enabled)
|
||
|
* - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode)
|
||
|
* - Set handle State to READY
|
||
|
* @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
/* Disable the UART DMA Rx request if enabled */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
|
||
|
/* Abort the UART DMA Rx channel : use blocking DMA Abort API (no callback) */
|
||
|
if(huart->hdmarx != NULL)
|
||
|
{
|
||
|
/* Set the UART DMA Abort callback to Null.
|
||
|
No call back execution at end of DMA abort procedure */
|
||
|
huart->hdmarx->XferAbortCallback = NULL;
|
||
|
|
||
|
HAL_DMA_Abort(huart->hdmarx);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Reset Rx transfer counter */
|
||
|
huart->RxXferCount = 0x00U;
|
||
|
|
||
|
/* Restore huart->RxState to Ready */
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Abort ongoing transfers (Interrupt mode).
|
||
|
* @param huart UART handle.
|
||
|
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
|
||
|
* This procedure performs following operations :
|
||
|
* - Disable PPP Interrupts
|
||
|
* - Disable the DMA transfer in the peripheral register (if enabled)
|
||
|
* - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
|
||
|
* - Set handle State to READY
|
||
|
* - At abort completion, call user abort complete callback
|
||
|
* @note This procedure is executed in Interrupt mode, meaning that abort procedure could be
|
||
|
* considered as completed only when user abort complete callback is executed (not when exiting function).
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint32_t AbortCplt = 0x01U;
|
||
|
|
||
|
/* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE));
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
/* If DMA Tx and/or DMA Rx Handles are associated to UART Handle, DMA Abort complete callbacks should be initialised
|
||
|
before any call to DMA Abort functions */
|
||
|
/* DMA Tx Handle is valid */
|
||
|
if(huart->hdmatx != NULL)
|
||
|
{
|
||
|
/* Set DMA Abort Complete callback if UART DMA Tx request if enabled.
|
||
|
Otherwise, set it to NULL */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
|
||
|
{
|
||
|
huart->hdmatx->XferAbortCallback = UART_DMATxAbortCallback;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
huart->hdmatx->XferAbortCallback = NULL;
|
||
|
}
|
||
|
}
|
||
|
/* DMA Rx Handle is valid */
|
||
|
if(huart->hdmarx != NULL)
|
||
|
{
|
||
|
/* Set DMA Abort Complete callback if UART DMA Rx request if enabled.
|
||
|
Otherwise, set it to NULL */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
|
||
|
{
|
||
|
huart->hdmarx->XferAbortCallback = UART_DMARxAbortCallback;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
huart->hdmarx->XferAbortCallback = NULL;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Disable the UART DMA Tx request if enabled */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
|
||
|
{
|
||
|
/* Disable DMA Tx at UART level */
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
|
||
|
/* Abort the UART DMA Tx channel : use non blocking DMA Abort API (callback) */
|
||
|
if(huart->hdmatx != NULL)
|
||
|
{
|
||
|
/* UART Tx DMA Abort callback has already been initialised :
|
||
|
will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
|
||
|
|
||
|
/* Abort DMA TX */
|
||
|
if(HAL_DMA_Abort_IT(huart->hdmatx) != HAL_OK)
|
||
|
{
|
||
|
huart->hdmatx->XferAbortCallback = NULL;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
AbortCplt = 0x00U;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Disable the UART DMA Rx request if enabled */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
|
||
|
/* Abort the UART DMA Rx channel : use non blocking DMA Abort API (callback) */
|
||
|
if(huart->hdmarx != NULL)
|
||
|
{
|
||
|
/* UART Rx DMA Abort callback has already been initialised :
|
||
|
will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
|
||
|
|
||
|
/* Abort DMA RX */
|
||
|
if(HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK)
|
||
|
{
|
||
|
huart->hdmarx->XferAbortCallback = NULL;
|
||
|
AbortCplt = 0x01U;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
AbortCplt = 0x00U;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* if no DMA abort complete callback execution is required => call user Abort Complete callback */
|
||
|
if(AbortCplt == 0x01U)
|
||
|
{
|
||
|
/* Reset Tx and Rx transfer counters */
|
||
|
huart->TxXferCount = 0x00U;
|
||
|
huart->RxXferCount = 0x00U;
|
||
|
|
||
|
/* Reset ErrorCode */
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
|
||
|
/* Restore huart->gState and huart->RxState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* As no DMA to be aborted, call directly user Abort complete callback */
|
||
|
HAL_UART_AbortCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Abort ongoing Transmit transfer (Interrupt mode).
|
||
|
* @param huart UART handle.
|
||
|
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
|
||
|
* This procedure performs following operations :
|
||
|
* - Disable PPP Interrupts
|
||
|
* - Disable the DMA transfer in the peripheral register (if enabled)
|
||
|
* - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
|
||
|
* - Set handle State to READY
|
||
|
* - At abort completion, call user abort complete callback
|
||
|
* @note This procedure is executed in Interrupt mode, meaning that abort procedure could be
|
||
|
* considered as completed only when user abort complete callback is executed (not when exiting function).
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Disable TXEIE and TCIE interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
|
||
|
|
||
|
/* Disable the UART DMA Tx request if enabled */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT))
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
|
||
|
/* Abort the UART DMA Tx channel : use blocking DMA Abort API (no callback) */
|
||
|
if(huart->hdmatx != NULL)
|
||
|
{
|
||
|
/* Set the UART DMA Abort callback :
|
||
|
will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
|
||
|
huart->hdmatx->XferAbortCallback = UART_DMATxOnlyAbortCallback;
|
||
|
|
||
|
/* Abort DMA TX */
|
||
|
if(HAL_DMA_Abort_IT(huart->hdmatx) != HAL_OK)
|
||
|
{
|
||
|
/* Call Directly huart->hdmatx->XferAbortCallback function in case of error */
|
||
|
huart->hdmatx->XferAbortCallback(huart->hdmatx);
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
/* Reset Tx transfer counter */
|
||
|
huart->TxXferCount = 0x00U;
|
||
|
|
||
|
/* Restore huart->gState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* As no DMA to be aborted, call directly user Abort complete callback */
|
||
|
HAL_UART_AbortTransmitCpltCallback(huart);
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
/* Reset Tx transfer counter */
|
||
|
huart->TxXferCount = 0x00U;
|
||
|
|
||
|
/* Restore huart->gState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* As no DMA to be aborted, call directly user Abort complete callback */
|
||
|
HAL_UART_AbortTransmitCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Abort ongoing Receive transfer (Interrupt mode).
|
||
|
* @param huart UART handle.
|
||
|
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode.
|
||
|
* This procedure performs following operations :
|
||
|
* - Disable PPP Interrupts
|
||
|
* - Disable the DMA transfer in the peripheral register (if enabled)
|
||
|
* - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode)
|
||
|
* - Set handle State to READY
|
||
|
* - At abort completion, call user abort complete callback
|
||
|
* @note This procedure is executed in Interrupt mode, meaning that abort procedure could be
|
||
|
* considered as completed only when user abort complete callback is executed (not when exiting function).
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
/* Disable the UART DMA Rx request if enabled */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
|
||
|
/* Abort the UART DMA Rx channel : use blocking DMA Abort API (no callback) */
|
||
|
if(huart->hdmarx != NULL)
|
||
|
{
|
||
|
/* Set the UART DMA Abort callback :
|
||
|
will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */
|
||
|
huart->hdmarx->XferAbortCallback = UART_DMARxOnlyAbortCallback;
|
||
|
|
||
|
/* Abort DMA RX */
|
||
|
if(HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK)
|
||
|
{
|
||
|
/* Call Directly huart->hdmarx->XferAbortCallback function in case of error */
|
||
|
huart->hdmarx->XferAbortCallback(huart->hdmarx);
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
/* Reset Rx transfer counter */
|
||
|
huart->RxXferCount = 0x00U;
|
||
|
|
||
|
/* Restore huart->RxState to Ready */
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* As no DMA to be aborted, call directly user Abort complete callback */
|
||
|
HAL_UART_AbortReceiveCpltCallback(huart);
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
/* Reset Rx transfer counter */
|
||
|
huart->RxXferCount = 0x00U;
|
||
|
|
||
|
/* Restore huart->RxState to Ready */
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* As no DMA to be aborted, call directly user Abort complete callback */
|
||
|
HAL_UART_AbortReceiveCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief This function handles UART interrupt request.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint32_t isrflags = READ_REG(huart->Instance->SR);
|
||
|
uint32_t cr1its = READ_REG(huart->Instance->CR1);
|
||
|
uint32_t cr3its = READ_REG(huart->Instance->CR3);
|
||
|
uint32_t errorflags = 0x00U;
|
||
|
uint32_t dmarequest = 0x00U;
|
||
|
|
||
|
/* If no error occurs */
|
||
|
errorflags = (isrflags & (uint32_t)(USART_SR_PE | USART_SR_FE | USART_SR_ORE | USART_SR_NE));
|
||
|
if(errorflags == RESET)
|
||
|
{
|
||
|
/* UART in mode Receiver -------------------------------------------------*/
|
||
|
if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
|
||
|
{
|
||
|
UART_Receive_IT(huart);
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* If some errors occur */
|
||
|
if((errorflags != RESET) && (((cr3its & USART_CR3_EIE) != RESET) || ((cr1its & (USART_CR1_RXNEIE | USART_CR1_PEIE)) != RESET)))
|
||
|
{
|
||
|
/* UART parity error interrupt occurred ----------------------------------*/
|
||
|
if(((isrflags & USART_SR_PE) != RESET) && ((cr1its & USART_CR1_PEIE) != RESET))
|
||
|
{
|
||
|
huart->ErrorCode |= HAL_UART_ERROR_PE;
|
||
|
}
|
||
|
|
||
|
/* UART noise error interrupt occurred -----------------------------------*/
|
||
|
if(((isrflags & USART_SR_NE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
|
||
|
{
|
||
|
huart->ErrorCode |= HAL_UART_ERROR_NE;
|
||
|
}
|
||
|
|
||
|
/* UART frame error interrupt occurred -----------------------------------*/
|
||
|
if(((isrflags & USART_SR_FE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
|
||
|
{
|
||
|
huart->ErrorCode |= HAL_UART_ERROR_FE;
|
||
|
}
|
||
|
|
||
|
/* UART Over-Run interrupt occurred --------------------------------------*/
|
||
|
if(((isrflags & USART_SR_ORE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET))
|
||
|
{
|
||
|
huart->ErrorCode |= HAL_UART_ERROR_ORE;
|
||
|
}
|
||
|
|
||
|
/* Call UART Error Call back function if need be --------------------------*/
|
||
|
if(huart->ErrorCode != HAL_UART_ERROR_NONE)
|
||
|
{
|
||
|
/* UART in mode Receiver -----------------------------------------------*/
|
||
|
if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET))
|
||
|
{
|
||
|
UART_Receive_IT(huart);
|
||
|
}
|
||
|
|
||
|
/* If Overrun error occurs, or if any error occurs in DMA mode reception,
|
||
|
consider error as blocking */
|
||
|
dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
if(((huart->ErrorCode & HAL_UART_ERROR_ORE) != RESET) || dmarequest)
|
||
|
{
|
||
|
/* Blocking error : transfer is aborted
|
||
|
Set the UART state ready to be able to start again the process,
|
||
|
Disable Rx Interrupts, and disable Rx DMA request, if ongoing */
|
||
|
UART_EndRxTransfer(huart);
|
||
|
|
||
|
/* Disable the UART DMA Rx request if enabled */
|
||
|
if(HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR))
|
||
|
{
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
|
||
|
/* Abort the UART DMA Rx channel */
|
||
|
if(huart->hdmarx != NULL)
|
||
|
{
|
||
|
/* Set the UART DMA Abort callback :
|
||
|
will lead to call HAL_UART_ErrorCallback() at end of DMA abort procedure */
|
||
|
huart->hdmarx->XferAbortCallback = UART_DMAAbortOnError;
|
||
|
if(HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK)
|
||
|
{
|
||
|
/* Call Directly XferAbortCallback function in case of error */
|
||
|
huart->hdmarx->XferAbortCallback(huart->hdmarx);
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
/* Call user error callback */
|
||
|
HAL_UART_ErrorCallback(huart);
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
/* Call user error callback */
|
||
|
HAL_UART_ErrorCallback(huart);
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
/* Non Blocking error : transfer could go on.
|
||
|
Error is notified to user through user error callback */
|
||
|
HAL_UART_ErrorCallback(huart);
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
}
|
||
|
}
|
||
|
return;
|
||
|
} /* End if some error occurs */
|
||
|
|
||
|
/* UART in mode Transmitter ------------------------------------------------*/
|
||
|
if(((isrflags & USART_SR_TXE) != RESET) && ((cr1its & USART_CR1_TXEIE) != RESET))
|
||
|
{
|
||
|
UART_Transmit_IT(huart);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
/* UART in mode Transmitter end --------------------------------------------*/
|
||
|
if(((isrflags & USART_SR_TC) != RESET) && ((cr1its & USART_CR1_TCIE) != RESET))
|
||
|
{
|
||
|
UART_EndTransmit_IT(huart);
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Tx Transfer completed callbacks.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
/* NOTE: This function Should not be modified, when the callback is needed,
|
||
|
the HAL_UART_TxCpltCallback could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Tx Half Transfer completed callbacks.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
/* NOTE: This function Should not be modified, when the callback is needed,
|
||
|
the HAL_UART_TxHalfCpltCallback could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Rx Transfer completed callbacks.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
/* NOTE: This function Should not be modified, when the callback is needed,
|
||
|
the HAL_UART_RxCpltCallback could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Rx Half Transfer completed callbacks.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
/* NOTE: This function Should not be modified, when the callback is needed,
|
||
|
the HAL_UART_RxHalfCpltCallback could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief UART error callbacks.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
/* NOTE: This function Should not be modified, when the callback is needed,
|
||
|
the HAL_UART_ErrorCallback could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief UART Abort Complete callback.
|
||
|
* @param huart UART handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_AbortCpltCallback (UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
|
||
|
/* NOTE : This function should not be modified, when the callback is needed,
|
||
|
the HAL_UART_AbortCpltCallback can be implemented in the user file.
|
||
|
*/
|
||
|
}
|
||
|
/**
|
||
|
* @brief UART Abort Complete callback.
|
||
|
* @param huart UART handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_AbortTransmitCpltCallback (UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
|
||
|
/* NOTE : This function should not be modified, when the callback is needed,
|
||
|
the HAL_UART_AbortTransmitCpltCallback can be implemented in the user file.
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief UART Abort Receive Complete callback.
|
||
|
* @param huart UART handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_UART_AbortReceiveCpltCallback (UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Prevent unused argument(s) compilation warning */
|
||
|
UNUSED(huart);
|
||
|
|
||
|
/* NOTE : This function should not be modified, when the callback is needed,
|
||
|
the HAL_UART_AbortReceiveCpltCallback can be implemented in the user file.
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/** @defgroup UART_Exported_Functions_Group3 Peripheral Control functions
|
||
|
* @brief UART control functions
|
||
|
*
|
||
|
@verbatim
|
||
|
==============================================================================
|
||
|
##### Peripheral Control functions #####
|
||
|
==============================================================================
|
||
|
[..]
|
||
|
This subsection provides a set of functions allowing to control the UART:
|
||
|
(+) HAL_LIN_SendBreak() API can be helpful to transmit the break character.
|
||
|
(+) HAL_MultiProcessor_EnterMuteMode() API can be helpful to enter the UART in mute mode.
|
||
|
(+) HAL_MultiProcessor_ExitMuteMode() API can be helpful to exit the UART mute mode by software.
|
||
|
(+) HAL_HalfDuplex_EnableTransmitter() API to enable the UART transmitter and disables the UART receiver in Half Duplex mode
|
||
|
(+) HAL_HalfDuplex_EnableReceiver() API to enable the UART receiver and disables the UART transmitter in Half Duplex mode
|
||
|
|
||
|
@endverbatim
|
||
|
* @{
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @brief Transmits break characters.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Check the parameters */
|
||
|
assert_param(IS_UART_INSTANCE(huart->Instance));
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_BUSY;
|
||
|
|
||
|
/* Send break characters */
|
||
|
SET_BIT(huart->Instance->CR1, USART_CR1_SBK);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Enters the UART in mute mode.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Check the parameters */
|
||
|
assert_param(IS_UART_INSTANCE(huart->Instance));
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_BUSY;
|
||
|
|
||
|
/* Enable the USART mute mode by setting the RWU bit in the CR1 register */
|
||
|
SET_BIT(huart->Instance->CR1, USART_CR1_RWU);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Exits the UART mute mode: wake up software.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Check the parameters */
|
||
|
assert_param(IS_UART_INSTANCE(huart->Instance));
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_BUSY;
|
||
|
|
||
|
/* Disable the USART mute mode by clearing the RWU bit in the CR1 register */
|
||
|
CLEAR_BIT(huart->Instance->CR1, USART_CR1_RWU);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Enables the UART transmitter and disables the UART receiver.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint32_t tmpreg = 0x00U;
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_BUSY;
|
||
|
|
||
|
/*-------------------------- USART CR1 Configuration -----------------------*/
|
||
|
tmpreg = huart->Instance->CR1;
|
||
|
|
||
|
/* Clear TE and RE bits */
|
||
|
tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_TE | USART_CR1_RE));
|
||
|
|
||
|
/* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
|
||
|
tmpreg |= (uint32_t)USART_CR1_TE;
|
||
|
|
||
|
/* Write to USART CR1 */
|
||
|
WRITE_REG(huart->Instance->CR1, (uint32_t)tmpreg);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Enables the UART receiver and disables the UART transmitter.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint32_t tmpreg = 0x00U;
|
||
|
|
||
|
/* Process Locked */
|
||
|
__HAL_LOCK(huart);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_BUSY;
|
||
|
|
||
|
/*-------------------------- USART CR1 Configuration -----------------------*/
|
||
|
tmpreg = huart->Instance->CR1;
|
||
|
|
||
|
/* Clear TE and RE bits */
|
||
|
tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_TE | USART_CR1_RE));
|
||
|
|
||
|
/* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
|
||
|
tmpreg |= (uint32_t)USART_CR1_RE;
|
||
|
|
||
|
/* Write to USART CR1 */
|
||
|
WRITE_REG(huart->Instance->CR1, (uint32_t)tmpreg);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/** @defgroup UART_Exported_Functions_Group4 Peripheral State and Errors functions
|
||
|
* @brief UART State and Errors functions
|
||
|
*
|
||
|
@verbatim
|
||
|
==============================================================================
|
||
|
##### Peripheral State and Errors functions #####
|
||
|
==============================================================================
|
||
|
[..]
|
||
|
This subsection provides a set of functions allowing to return the State of
|
||
|
UART communication process, return Peripheral Errors occurred during communication
|
||
|
process
|
||
|
(+) HAL_UART_GetState() API can be helpful to check in run-time the state of the UART peripheral.
|
||
|
(+) HAL_UART_GetError() check in run-time errors that could be occurred during communication.
|
||
|
|
||
|
@endverbatim
|
||
|
* @{
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @brief Returns the UART state.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL state
|
||
|
*/
|
||
|
HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint32_t temp1= 0x00U, temp2 = 0x00U;
|
||
|
temp1 = huart->gState;
|
||
|
temp2 = huart->RxState;
|
||
|
|
||
|
return (HAL_UART_StateTypeDef)(temp1 | temp2);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Return the UART error code
|
||
|
* @param huart : pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART.
|
||
|
* @retval UART Error Code
|
||
|
*/
|
||
|
uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
return huart->ErrorCode;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART transmit process complete callback.
|
||
|
* @param hdma: DMA handle
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
/* DMA Normal mode*/
|
||
|
if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0U)
|
||
|
{
|
||
|
huart->TxXferCount = 0U;
|
||
|
|
||
|
/* Disable the DMA transfer for transmit request by setting the DMAT bit
|
||
|
in the UART CR3 register */
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
|
||
|
/* Enable the UART Transmit Complete Interrupt */
|
||
|
SET_BIT(huart->Instance->CR1, USART_CR1_TCIE);
|
||
|
|
||
|
}
|
||
|
/* DMA Circular mode */
|
||
|
else
|
||
|
{
|
||
|
HAL_UART_TxCpltCallback(huart);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART transmit process half complete callback
|
||
|
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified DMA module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
UART_HandleTypeDef* huart = (UART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
|
||
|
|
||
|
HAL_UART_TxHalfCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART receive process complete callback.
|
||
|
* @param hdma: DMA handle
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
/* DMA Normal mode*/
|
||
|
if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0U)
|
||
|
{
|
||
|
huart->RxXferCount = 0U;
|
||
|
|
||
|
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE);
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
/* Disable the DMA transfer for the receiver request by setting the DMAR bit
|
||
|
in the UART CR3 register */
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
|
||
|
/* At end of Rx process, restore huart->RxState to Ready */
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
}
|
||
|
HAL_UART_RxCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART receive process half complete callback
|
||
|
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified DMA module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
UART_HandleTypeDef* huart = (UART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
|
||
|
HAL_UART_RxHalfCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART communication error callback.
|
||
|
* @param hdma: DMA handle
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMAError(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
uint32_t dmarequest = 0x00U;
|
||
|
UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
|
||
|
/* Stop UART DMA Tx request if ongoing */
|
||
|
dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT);
|
||
|
if((huart->gState == HAL_UART_STATE_BUSY_TX) && dmarequest)
|
||
|
{
|
||
|
huart->TxXferCount = 0U;
|
||
|
UART_EndTxTransfer(huart);
|
||
|
}
|
||
|
|
||
|
/* Stop UART DMA Rx request if ongoing */
|
||
|
dmarequest = HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR);
|
||
|
if((huart->RxState == HAL_UART_STATE_BUSY_RX) && dmarequest)
|
||
|
{
|
||
|
huart->RxXferCount = 0U;
|
||
|
UART_EndRxTransfer(huart);
|
||
|
}
|
||
|
|
||
|
huart->ErrorCode |= HAL_UART_ERROR_DMA;
|
||
|
HAL_UART_ErrorCallback(huart);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief This function handles UART Communication Timeout.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @param Flag: specifies the UART flag to check.
|
||
|
* @param Status: The new Flag status (SET or RESET).
|
||
|
* @param Tickstart Tick start value
|
||
|
* @param Timeout: Timeout duration
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
static HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout)
|
||
|
{
|
||
|
/* Wait until flag is set */
|
||
|
while((__HAL_UART_GET_FLAG(huart, Flag) ? SET : RESET) == Status)
|
||
|
{
|
||
|
/* Check for the Timeout */
|
||
|
if(Timeout != HAL_MAX_DELAY)
|
||
|
{
|
||
|
if((Timeout == 0U)||((HAL_GetTick() - Tickstart ) > Timeout))
|
||
|
{
|
||
|
/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
|
||
|
CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE));
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(huart);
|
||
|
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief End ongoing Tx transfer on UART peripheral (following error detection or Transmit completion).
|
||
|
* @param huart: UART handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_EndTxTransfer(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Disable TXEIE and TCIE interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE));
|
||
|
|
||
|
/* At end of Tx process, restore huart->gState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief End ongoing Rx transfer on UART peripheral (following error detection or Reception completion).
|
||
|
* @param huart: UART handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_EndRxTransfer(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
|
||
|
CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE));
|
||
|
CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE);
|
||
|
|
||
|
/* At end of Rx process, restore huart->RxState to Ready */
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART communication abort callback, when initiated by HAL services on Error
|
||
|
* (To be called at end of DMA Abort procedure following error occurrence).
|
||
|
* @param hdma DMA handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMAAbortOnError(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
huart->RxXferCount = 0x00U;
|
||
|
huart->TxXferCount = 0x00U;
|
||
|
|
||
|
HAL_UART_ErrorCallback(huart);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART Tx communication abort callback, when initiated by user
|
||
|
* (To be called at end of DMA Tx Abort procedure following user abort request).
|
||
|
* @note When this callback is executed, User Abort complete call back is called only if no
|
||
|
* Abort still ongoing for Rx DMA Handle.
|
||
|
* @param hdma DMA handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMATxAbortCallback(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
|
||
|
huart->hdmatx->XferAbortCallback = NULL;
|
||
|
|
||
|
/* Check if an Abort process is still ongoing */
|
||
|
if(huart->hdmarx != NULL)
|
||
|
{
|
||
|
if(huart->hdmarx->XferAbortCallback != NULL)
|
||
|
{
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
|
||
|
huart->TxXferCount = 0x00U;
|
||
|
huart->RxXferCount = 0x00U;
|
||
|
|
||
|
/* Reset ErrorCode */
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
|
||
|
/* Restore huart->gState and huart->RxState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Call user Abort complete callback */
|
||
|
HAL_UART_AbortCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART Rx communication abort callback, when initiated by user
|
||
|
* (To be called at end of DMA Rx Abort procedure following user abort request).
|
||
|
* @note When this callback is executed, User Abort complete call back is called only if no
|
||
|
* Abort still ongoing for Tx DMA Handle.
|
||
|
* @param hdma DMA handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMARxAbortCallback(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
|
||
|
huart->hdmarx->XferAbortCallback = NULL;
|
||
|
|
||
|
/* Check if an Abort process is still ongoing */
|
||
|
if(huart->hdmatx != NULL)
|
||
|
{
|
||
|
if(huart->hdmatx->XferAbortCallback != NULL)
|
||
|
{
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */
|
||
|
huart->TxXferCount = 0x00U;
|
||
|
huart->RxXferCount = 0x00U;
|
||
|
|
||
|
/* Reset ErrorCode */
|
||
|
huart->ErrorCode = HAL_UART_ERROR_NONE;
|
||
|
|
||
|
/* Restore huart->gState and huart->RxState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Call user Abort complete callback */
|
||
|
HAL_UART_AbortCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART Tx communication abort callback, when initiated by user by a call to
|
||
|
* HAL_UART_AbortTransmit_IT API (Abort only Tx transfer)
|
||
|
* (This callback is executed at end of DMA Tx Abort procedure following user abort request,
|
||
|
* and leads to user Tx Abort Complete callback execution).
|
||
|
* @param hdma DMA handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
|
||
|
huart->TxXferCount = 0x00U;
|
||
|
|
||
|
/* Restore huart->gState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Call user Abort complete callback */
|
||
|
HAL_UART_AbortTransmitCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief DMA UART Rx communication abort callback, when initiated by user by a call to
|
||
|
* HAL_UART_AbortReceive_IT API (Abort only Rx transfer)
|
||
|
* (This callback is executed at end of DMA Rx Abort procedure following user abort request,
|
||
|
* and leads to user Rx Abort Complete callback execution).
|
||
|
* @param hdma DMA handle.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
|
||
|
huart->RxXferCount = 0x00U;
|
||
|
|
||
|
/* Restore huart->RxState to Ready */
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
/* Call user Abort complete callback */
|
||
|
HAL_UART_AbortReceiveCpltCallback(huart);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Sends an amount of data in non blocking mode.
|
||
|
* @param huart: Pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint16_t* tmp;
|
||
|
|
||
|
/* Check that a Tx process is ongoing */
|
||
|
if(huart->gState == HAL_UART_STATE_BUSY_TX)
|
||
|
{
|
||
|
if(huart->Init.WordLength == UART_WORDLENGTH_9B)
|
||
|
{
|
||
|
tmp = (uint16_t*) huart->pTxBuffPtr;
|
||
|
huart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
|
||
|
if(huart->Init.Parity == UART_PARITY_NONE)
|
||
|
{
|
||
|
huart->pTxBuffPtr += 2U;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
huart->pTxBuffPtr += 1U;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
huart->Instance->DR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0x00FF);
|
||
|
}
|
||
|
|
||
|
if(--huart->TxXferCount == 0U)
|
||
|
{
|
||
|
/* Disable the UART Transmit Complete Interrupt */
|
||
|
__HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
|
||
|
|
||
|
/* Enable the UART Transmit Complete Interrupt */
|
||
|
__HAL_UART_ENABLE_IT(huart, UART_IT_TC);
|
||
|
}
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return HAL_BUSY;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Wraps up transmission in non blocking mode.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
/* Disable the UART Transmit Complete Interrupt */
|
||
|
__HAL_UART_DISABLE_IT(huart, UART_IT_TC);
|
||
|
|
||
|
/* Tx process is ended, restore huart->gState to Ready */
|
||
|
huart->gState = HAL_UART_STATE_READY;
|
||
|
HAL_UART_TxCpltCallback(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Receives an amount of data in non blocking mode
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint16_t* tmp;
|
||
|
|
||
|
/* Check that a Rx process is ongoing */
|
||
|
if(huart->RxState == HAL_UART_STATE_BUSY_RX)
|
||
|
{
|
||
|
if(huart->Init.WordLength == UART_WORDLENGTH_9B)
|
||
|
{
|
||
|
tmp = (uint16_t*) huart->pRxBuffPtr;
|
||
|
if(huart->Init.Parity == UART_PARITY_NONE)
|
||
|
{
|
||
|
*tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x01FF);
|
||
|
huart->pRxBuffPtr += 2U;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
*tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x00FF);
|
||
|
huart->pRxBuffPtr += 1U;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if(huart->Init.Parity == UART_PARITY_NONE)
|
||
|
{
|
||
|
*huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x00FF);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
*huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x007F);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if(--huart->RxXferCount == 0U)
|
||
|
{
|
||
|
/* Disable the IRDA Data Register not empty Interrupt */
|
||
|
__HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
|
||
|
|
||
|
/* Disable the UART Parity Error Interrupt */
|
||
|
__HAL_UART_DISABLE_IT(huart, UART_IT_PE);
|
||
|
/* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */
|
||
|
__HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
|
||
|
|
||
|
/* Rx process is completed, restore huart->RxState to Ready */
|
||
|
huart->RxState = HAL_UART_STATE_READY;
|
||
|
|
||
|
HAL_UART_RxCpltCallback(huart);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
return HAL_BUSY;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Configures the UART peripheral.
|
||
|
* @param huart: pointer to a UART_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified UART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void UART_SetConfig(UART_HandleTypeDef *huart)
|
||
|
{
|
||
|
uint32_t tmpreg = 0x00U;
|
||
|
|
||
|
/* Check the parameters */
|
||
|
assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
|
||
|
assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
|
||
|
assert_param(IS_UART_PARITY(huart->Init.Parity));
|
||
|
assert_param(IS_UART_MODE(huart->Init.Mode));
|
||
|
|
||
|
/*------- UART-associated USART registers setting : CR2 Configuration ------*/
|
||
|
/* Configure the UART Stop Bits: Set STOP[13:12] bits according
|
||
|
* to huart->Init.StopBits value */
|
||
|
MODIFY_REG(huart->Instance->CR2, USART_CR2_STOP, huart->Init.StopBits);
|
||
|
|
||
|
/*------- UART-associated USART registers setting : CR1 Configuration ------*/
|
||
|
/* Configure the UART Word Length, Parity and mode:
|
||
|
Set the M bits according to huart->Init.WordLength value
|
||
|
Set PCE and PS bits according to huart->Init.Parity value
|
||
|
Set TE and RE bits according to huart->Init.Mode value
|
||
|
Set OVER8 bit according to huart->Init.OverSampling value */
|
||
|
|
||
|
#if defined(USART_CR1_OVER8)
|
||
|
tmpreg |= (uint32_t)huart->Init.WordLength | huart->Init.Parity | huart->Init.Mode | huart->Init.OverSampling;
|
||
|
MODIFY_REG(huart->Instance->CR1,
|
||
|
(uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE | USART_CR1_OVER8),
|
||
|
tmpreg);
|
||
|
#else
|
||
|
tmpreg |= (uint32_t)huart->Init.WordLength | huart->Init.Parity | huart->Init.Mode;
|
||
|
MODIFY_REG(huart->Instance->CR1,
|
||
|
(uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE),
|
||
|
tmpreg);
|
||
|
#endif /* USART_CR1_OVER8 */
|
||
|
|
||
|
/*------- UART-associated USART registers setting : CR3 Configuration ------*/
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/* Configure the UART HFC: Set CTSE and RTSE bits according to huart->Init.HwFlowCtl value */
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|
MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE), huart->Init.HwFlowCtl);
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||
|
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||
|
#if defined(USART_CR1_OVER8)
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||
|
/* Check the Over Sampling */
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||
|
if(huart->Init.OverSampling == UART_OVERSAMPLING_8)
|
||
|
{
|
||
|
/*-------------------------- USART BRR Configuration ---------------------*/
|
||
|
if(huart->Instance == USART1)
|
||
|
{
|
||
|
huart->Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
huart->Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
/*-------------------------- USART BRR Configuration ---------------------*/
|
||
|
if(huart->Instance == USART1)
|
||
|
{
|
||
|
huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
|
||
|
}
|
||
|
}
|
||
|
#else
|
||
|
/*-------------------------- USART BRR Configuration ---------------------*/
|
||
|
if(huart->Instance == USART1)
|
||
|
{
|
||
|
huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate);
|
||
|
}
|
||
|
#endif /* USART_CR1_OVER8 */
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
#endif /* HAL_UART_MODULE_ENABLED */
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|