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Diff: targets/cmsis/TARGET_STM/TARGET_DISCO_F429ZI/stm32f4xx_hal_usart.c
- Revision:
- 384:ef87175507f1
- Parent:
- 383:0564d9840d0d
- Child:
- 385:be64abf45658
--- a/targets/cmsis/TARGET_STM/TARGET_DISCO_F429ZI/stm32f4xx_hal_usart.c Mon Nov 03 11:00:07 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1822 +0,0 @@
-/**
- ******************************************************************************
- * @file stm32f4xx_hal_usart.c
- * @author MCD Application Team
- * @version V1.1.0
- * @date 19-June-2014
- * @brief USART HAL module driver.
- * This file provides firmware functions to manage the following
- * functionalities of the Universal Synchronous Asynchronous Receiver Transmitter (USART) peripheral:
- * + Initialization and de-initialization functions
- * + IO operation functions
- * + Peripheral Control functions
- @verbatim
- ==============================================================================
- ##### How to use this driver #####
- ==============================================================================
- [..]
- The USART HAL driver can be used as follows:
-
- (#) Declare a USART_HandleTypeDef handle structure.
- (#) Initialize the USART low level resources by implementing the HAL_USART_MspInit () API:
- (##) Enable the USARTx interface clock.
- (##) USART pins configuration:
- (+++) Enable the clock for the USART GPIOs.
- (+++) Configure these USART pins as alternate function pull-up.
- (##) NVIC configuration if you need to use interrupt process (HAL_USART_Transmit_IT(),
- HAL_USART_Receive_IT() and HAL_USART_TransmitReceive_IT() APIs):
- (+++) Configure the USARTx interrupt priority.
- (+++) Enable the NVIC USART IRQ handle.
- (##) DMA Configuration if you need to use DMA process (HAL_USART_Transmit_DMA()
- HAL_USART_Receive_IT() and HAL_USART_TransmitReceive_IT() APIs):
- (+++) Declare a DMA handle structure for the Tx/Rx stream.
- (+++) Enable the DMAx interface clock.
- (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
- (+++) Configure the DMA Tx/Rx Stream.
- (+++) Associate the initilalized DMA handle to the USART DMA Tx/Rx handle.
- (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx Stream.
-
- (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware
- flow control and Mode(Receiver/Transmitter) in the husart Init structure.
-
- (#) Initialize the USART registers by calling the HAL_USART_Init() API:
- (++) These APIs configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
- by calling the customed HAL_USART_MspInit(&husart) API.
-
- -@@- The specific USART interrupts (Transmission complete interrupt,
- RXNE interrupt and Error Interrupts) will be managed using the macros
- __USART_ENABLE_IT() and __USART_DISABLE_IT() inside the transmit and receive process.
-
- (#) Three operation modes are available within this driver :
-
- *** Polling mode IO operation ***
- =================================
- [..]
- (+) Send an amount of data in blocking mode using HAL_USART_Transmit()
- (+) Receive an amount of data in blocking mode using HAL_USART_Receive()
-
- *** Interrupt mode IO operation ***
- ===================================
- [..]
- (+) Send an amount of data in non blocking mode using HAL_USART_Transmit_IT()
- (+) At transmission end of half transfer HAL_USART_TxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_USART_TxHalfCpltCallback
- (+) At transmission end of transfer HAL_USART_TxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_USART_TxCpltCallback
- (+) Receive an amount of data in non blocking mode using HAL_USART_Receive_IT()
- (+) At reception end of half transfer HAL_USART_RxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_USART_RxHalfCpltCallback
- (+) At reception end of transfer HAL_USART_RxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_USART_RxCpltCallback
- (+) In case of transfer Error, HAL_USART_ErrorCallback() function is executed and user can
- add his own code by customization of function pointer HAL_USART_ErrorCallback
-
- *** DMA mode IO operation ***
- ==============================
- [..]
- (+) Send an amount of data in non blocking mode (DMA) using HAL_USART_Transmit_DMA()
- (+) At transmission end of half transfer HAL_USART_TxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_USART_TxHalfCpltCallback
- (+) At transmission end of transfer HAL_USART_TxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_USART_TxCpltCallback
- (+) Receive an amount of data in non blocking mode (DMA) using HAL_USART_Receive_DMA()
- (+) At reception end of half transfer HAL_USART_RxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_USART_RxHalfCpltCallback
- (+) At reception end of transfer HAL_USART_RxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_USART_RxCpltCallback
- (+) In case of transfer Error, HAL_USART_ErrorCallback() function is executed and user can
- add his own code by customization of function pointer HAL_USART_ErrorCallback
- (+) Pause the DMA Transfer using HAL_USART_DMAPause()
- (+) Resume the DMA Transfer using HAL_USART_DMAResume()
- (+) Stop the DMA Transfer using HAL_USART_DMAStop()
-
- *** USART HAL driver macros list ***
- =============================================
- [..]
- Below the list of most used macros in USART HAL driver.
-
- (+) __HAL_USART_ENABLE: Enable the USART peripheral
- (+) __HAL_USART_DISABLE: Disable the USART peripheral
- (+) __HAL_USART_GET_FLAG : Check whether the specified USART flag is set or not
- (+) __HAL_USART_CLEAR_FLAG : Clear the specified USART pending flag
- (+) __HAL_USART_ENABLE_IT: Enable the specified USART interrupt
- (+) __HAL_USART_DISABLE_IT: Disable the specified USART interrupt
-
- [..]
- (@) You can refer to the USART HAL driver header file for more useful macros
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f4xx_hal.h"
-
-/** @addtogroup STM32F4xx_HAL_Driver
- * @{
- */
-
-/** @defgroup USART
- * @brief HAL USART Synchronous module driver
- * @{
- */
-#ifdef HAL_USART_MODULE_ENABLED
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-#define DUMMY_DATA 0xFFFF
-#define USART_TIMEOUT_VALUE 22000
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart);
-static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart);
-static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart);
-static void USART_SetConfig (USART_HandleTypeDef *husart);
-static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
-static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
-static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
-static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
-static void USART_DMAError(DMA_HandleTypeDef *hdma);
-static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
-/* Private functions ---------------------------------------------------------*/
-
-
-/** @defgroup USART_Private_Functions
- * @{
- */
-
-/** @defgroup USART_Group1 USART Initialization and de-initialization functions
- * @brief Initialization and Configuration functions
- *
-@verbatim
- ==============================================================================
- ##### Initialization and Configuration functions #####
- ==============================================================================
- [..]
- This subsection provides a set of functions allowing to initialize the USART
- in asynchronous and in synchronous modes.
- (+) For the asynchronous mode only these parameters can be configured:
- (++) Baud Rate
- (++) Word Length
- (++) Stop Bit
- (++) Parity: If the parity is enabled, then the MSB bit of the data written
- in the data register is transmitted but is changed by the parity bit.
- Depending on the frame length defined by the M bit (8-bits or 9-bits),
- please refer to Reference manual for possible USART frame formats.
- (++) USART polarity
- (++) USART phase
- (++) USART LastBit
- (++) Receiver/transmitter modes
-
- [..]
- The HAL_USART_Init() function follows the USART synchronous configuration
- procedure (details for the procedure are available in reference manual (RM0329)).
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the USART mode according to the specified
- * parameters in the USART_InitTypeDef and create the associated handle.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart)
-{
- /* Check the USART handle allocation */
- if(husart == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_USART_INSTANCE(husart->Instance));
-
- if(husart->State == HAL_USART_STATE_RESET)
- {
- /* Init the low level hardware */
- HAL_USART_MspInit(husart);
- }
-
- husart->State = HAL_USART_STATE_BUSY;
-
- /* Set the USART Communication parameters */
- USART_SetConfig(husart);
-
- /* In USART mode, the following bits must be kept cleared:
- - LINEN bit in the USART_CR2 register
- - HDSEL, SCEN and IREN bits in the USART_CR3 register */
- husart->Instance->CR2 &= ~USART_CR2_LINEN;
- husart->Instance->CR3 &= ~(USART_CR3_IREN | USART_CR3_SCEN | USART_CR3_HDSEL);
-
- /* Enable the Peripheral */
- __USART_ENABLE(husart);
-
- /* Initialize the USART state */
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State= HAL_USART_STATE_READY;
-
- return HAL_OK;
-}
-
-/**
- * @brief DeInitializes the USART peripheral.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart)
-{
- /* Check the USART handle allocation */
- if(husart == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_USART_INSTANCE(husart->Instance));
-
- husart->State = HAL_USART_STATE_BUSY;
-
- /* DeInit the low level hardware */
- HAL_USART_MspDeInit(husart);
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_RESET;
-
- /* Release Lock */
- __HAL_UNLOCK(husart);
-
- return HAL_OK;
-}
-
-/**
- * @brief USART MSP Init.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
- __weak void HAL_USART_MspInit(USART_HandleTypeDef *husart)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_USART_MspInit could be implenetd in the user file
- */
-}
-
-/**
- * @brief USART MSP DeInit.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
- __weak void HAL_USART_MspDeInit(USART_HandleTypeDef *husart)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_USART_MspDeInit could be implenetd in the user file
- */
-}
-
-/**
- * @}
- */
-
-/** @defgroup USART_Group2 IO operation functions
- * @brief USART Transmit and Receive functions
- *
-@verbatim
- ==============================================================================
- ##### IO operation functions #####
- ==============================================================================
- [..]
- This subsection provides a set of functions allowing to manage the USART synchronous
- data transfers.
-
- [..]
- The USART supports master mode only: it cannot receive or send data related to an input
- clock (SCLK is always an output).
-
- (#) 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.
- (++) No-Blocking mode: The communication is performed using Interrupts
- or DMA, These API's return the HAL status.
- The end of the data processing will be indicated through the
- dedicated USART IRQ when using Interrupt mode or the DMA IRQ when
- using DMA mode.
- The HAL_USART_TxCpltCallback(), HAL_USART_RxCpltCallback() and HAL_USART_TxRxCpltCallback()
- user callbacks
- will be executed respectivelly at the end of the transmit or Receive process
- The HAL_USART_ErrorCallback() user callback will be executed when a communication
- error is detected
-
- (#) Blocking mode APIs are :
- (++) HAL_USART_Transmit() in simplex mode
- (++) HAL_USART_Receive() in full duplex receive only
- (++) HAL_USART_TransmitReceive() in full duplex mode
-
- (#) Non Blocking mode APIs with Interrupt are :
- (++) HAL_USART_Transmit_IT()in simplex mode
- (++) HAL_USART_Receive_IT() in full duplex receive only
- (++) HAL_USART_TransmitReceive_IT() in full duplex mode
- (++) HAL_USART_IRQHandler()
-
- (#) Non Blocking mode functions with DMA are :
- (++) HAL_USART_Transmit_DMA()in simplex mode
- (++) HAL_USART_Receive_DMA() in full duplex receive only
- (++) HAL_USART_TransmitReceie_DMA() in full duplex mode
-
- (#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
- (++) HAL_USART_TxCpltCallback()
- (++) HAL_USART_RxCpltCallback()
- (++) HAL_USART_ErrorCallback()
- (++) HAL_USART_TxRxCpltCallback()
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Simplex Send an amount of data in blocking mode.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param pTxData: Pointer to data buffer
- * @param Size: Amount of data to be sent
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout)
-{
- uint16_t* tmp;
-
- if(husart->State == HAL_USART_STATE_READY)
- {
- if((pTxData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(husart);
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_BUSY_TX;
-
- husart->TxXferSize = Size;
- husart->TxXferCount = Size;
- while(husart->TxXferCount > 0)
- {
- husart->TxXferCount--;
- if(husart->Init.WordLength == USART_WORDLENGTH_9B)
- {
- /* Wait for TC flag in order to write data in DR */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- tmp = (uint16_t*) pTxData;
- husart->Instance->DR = (*tmp & (uint16_t)0x01FF);
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- pTxData += 2;
- }
- else
- {
- pTxData += 1;
- }
- }
- else
- {
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- husart->Instance->DR = (*pTxData++ & (uint8_t)0xFF);
- }
- }
-
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- husart->State = HAL_USART_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Full-Duplex Receive an amount of data in blocking mode.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param pRxData: Pointer to data buffer
- * @param Size: Amount of data to be received
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout)
-{
- uint16_t* tmp;
-
- if(husart->State == HAL_USART_STATE_READY)
- {
- if((pRxData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
- /* Process Locked */
- __HAL_LOCK(husart);
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_BUSY_RX;
-
- husart->RxXferSize = Size;
- husart->RxXferCount = Size;
- /* Check the remain data to be received */
- while(husart->RxXferCount > 0)
- {
- husart->RxXferCount--;
- if(husart->Init.WordLength == USART_WORDLENGTH_9B)
- {
- /* Wait until TXE flag is set to send dummy byte in order to generate the clock for the slave to send data */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- /* Send dummy byte in order to generate clock */
- husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x01FF);
-
- /* Wait for RXNE Flag */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- tmp = (uint16_t*) pRxData ;
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
- pRxData +=2;
- }
- else
- {
- *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
- pRxData +=1;
- }
- }
- else
- {
- /* Wait until TXE flag is set to send dummy byte in order to generate the clock for the slave to send data */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
-
- /* Send Dummy Byte in order to generate clock */
- husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x00FF);
-
- /* Wait until RXNE flag is set to receive the byte */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- /* Receive data */
- *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
- }
- else
- {
- /* Receive data */
- *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
- }
-
- }
- }
-
- husart->State = HAL_USART_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Full-Duplex Send receive an amount of data in full-duplex mode (blocking mode).
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param pTxData: Pointer to data transmitted buffer
- * @param pRxData: Pointer to data received buffer
- * @param Size: Amount of data to be sent
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout)
-{
- uint16_t* tmp;
-
- if(husart->State == HAL_USART_STATE_READY)
- {
- if((pTxData == NULL) || (pRxData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
- /* Process Locked */
- __HAL_LOCK(husart);
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_BUSY_RX;
-
- husart->RxXferSize = Size;
- husart->TxXferSize = Size;
- husart->TxXferCount = Size;
- husart->RxXferCount = Size;
-
- /* Check the remain data to be received */
- while(husart->TxXferCount > 0)
- {
- husart->TxXferCount--;
- husart->RxXferCount--;
- if(husart->Init.WordLength == USART_WORDLENGTH_9B)
- {
- /* Wait for TC flag in order to write data in DR */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- tmp = (uint16_t*) pTxData;
- husart->Instance->DR = (*tmp & (uint16_t)0x01FF);
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- pTxData += 2;
- }
- else
- {
- pTxData += 1;
- }
-
- /* Wait for RXNE Flag */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- tmp = (uint16_t*) pRxData ;
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
- pRxData += 2;
- }
- else
- {
- *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
- pRxData += 1;
- }
- }
- else
- {
- /* Wait for TC flag in order to write data in DR */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- husart->Instance->DR = (*pTxData++ & (uint8_t)0x00FF);
-
- /* Wait for RXNE Flag */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- /* Receive data */
- *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
- }
- else
- {
- /* Receive data */
- *pRxData++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
- }
- }
- }
-
- husart->State = HAL_USART_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Simplex Send an amount of data in non-blocking mode.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param pTxData: Pointer to data buffer
- * @param Size: Amount of data to be sent
- * @retval HAL status
- * @note The USART errors are not managed to avoid the overrun error.
- */
-HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size)
-{
- if(husart->State == HAL_USART_STATE_READY)
- {
- if((pTxData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(husart);
-
- husart->pTxBuffPtr = pTxData;
- husart->TxXferSize = Size;
- husart->TxXferCount = Size;
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_BUSY_TX;
-
- /* The USART Error Interrupts: (Frame error, Noise error, Overrun error)
- are not managed by the USART transmit process to avoid the overrun interrupt
- when the USART mode is configured for transmit and receive "USART_MODE_TX_RX"
- to benefit for the frame error and noise interrupts the USART mode should be
- configured only for transmit "USART_MODE_TX"
- The __USART_ENABLE_IT(husart, USART_IT_ERR) can be used to enable the Frame error,
- Noise error interrupt */
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- /* Enable the USART Transmit Data Register Empty Interrupt */
- __USART_ENABLE_IT(husart, USART_IT_TXE);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Simplex Receive an amount of data in non-blocking mode.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param pRxData: Pointer to data buffer
- * @param Size: Amount of data to be received
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size)
-{
- if(husart->State == HAL_USART_STATE_READY)
- {
- if((pRxData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
- /* Process Locked */
- __HAL_LOCK(husart);
-
- husart->pRxBuffPtr = pRxData;
- husart->RxXferSize = Size;
- husart->RxXferCount = Size;
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_BUSY_RX;
-
- /* Enable the USART Data Register not empty Interrupt */
- __USART_ENABLE_IT(husart, USART_IT_RXNE);
-
- /* Enable the USART Parity Error Interrupt */
- __USART_ENABLE_IT(husart, USART_IT_PE);
-
- /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */
- __USART_ENABLE_IT(husart, USART_IT_ERR);
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- /* Send dummy byte in order to generate the clock for the slave to send data */
- husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x01FF);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Full-Duplex Send receive an amount of data in full-duplex mode (non-blocking).
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param pTxData: Pointer to data transmitted buffer
- * @param pRxData: Pointer to data received buffer
- * @param Size: Amount of data to be received
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
-{
- if(husart->State == HAL_USART_STATE_READY)
- {
- if((pTxData == NULL) || (pRxData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
- /* Process Locked */
- __HAL_LOCK(husart);
-
- husart->pRxBuffPtr = pRxData;
- husart->RxXferSize = Size;
- husart->RxXferCount = Size;
- husart->pTxBuffPtr = pTxData;
- husart->TxXferSize = Size;
- husart->TxXferCount = Size;
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_BUSY_TX_RX;
-
- /* Enable the USART Data Register not empty Interrupt */
- __USART_ENABLE_IT(husart, USART_IT_RXNE);
-
- /* Enable the USART Parity Error Interrupt */
- __USART_ENABLE_IT(husart, USART_IT_PE);
-
- /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */
- __USART_ENABLE_IT(husart, USART_IT_ERR);
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- /* Enable the USART Transmit Data Register Empty Interrupt */
- __USART_ENABLE_IT(husart, USART_IT_TXE);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Simplex Send an amount of data in non-blocking mode.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param pTxData: Pointer to data buffer
- * @param Size: Amount of data to be sent
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size)
-{
- uint32_t *tmp;
-
- if(husart->State == HAL_USART_STATE_READY)
- {
- if((pTxData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
- /* Process Locked */
- __HAL_LOCK(husart);
-
- husart->pTxBuffPtr = pTxData;
- husart->TxXferSize = Size;
- husart->TxXferCount = Size;
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_BUSY_TX;
-
- /* Set the USART DMA transfer complete callback */
- husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt;
-
- /* Set the USART DMA Half transfer complete callback */
- husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt;
-
- /* Set the DMA error callback */
- husart->hdmatx->XferErrorCallback = USART_DMAError;
-
- /* Enable the USART transmit DMA Stream */
- tmp = (uint32_t*)&pTxData;
- HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->DR, Size);
-
- /* Enable the DMA transfer for transmit request by setting the DMAT bit
- in the USART CR3 register */
- husart->Instance->CR3 |= USART_CR3_DMAT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Full-Duplex Receive an amount of data in non-blocking mode.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param pRxData: Pointer to data buffer
- * @param Size: Amount of data to be received
- * @retval HAL status
- * @note The USART DMA transmit stream must be configured in order to generate the clock for the slave.
- * @note When the USART parity is enabled (PCE = 1) the data received contain the parity bit.
- */
-HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size)
-{
- uint32_t *tmp;
-
- if(husart->State == HAL_USART_STATE_READY)
- {
- if((pRxData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(husart);
-
- husart->pRxBuffPtr = pRxData;
- husart->RxXferSize = Size;
- husart->pTxBuffPtr = pRxData;
- husart->TxXferSize = Size;
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_BUSY_RX;
-
- /* Set the USART DMA Rx transfer complete callback */
- husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt;
-
- /* Set the USART DMA Half transfer complete callback */
- husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt;
-
- /* Set the USART DMA Rx transfer error callback */
- husart->hdmarx->XferErrorCallback = USART_DMAError;
-
- /* Enable the USART receive DMA Stream */
- tmp = (uint32_t*)&pRxData;
- HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->DR, *(uint32_t*)tmp, Size);
-
- /* Enable the USART transmit DMA Stream: the transmit stream is used in order
- to generate in the non-blocking mode the clock to the slave device,
- this mode isn't a simplex receive mode but a full-duplex receive one */
- HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->DR, Size);
-
- /* Clear the Overrun flag just before enabling the DMA Rx request: mandatory for the second transfer
- when using the USART in circular mode */
- __HAL_USART_CLEAR_OREFLAG(husart);
-
- /* Enable the DMA transfer for the receiver request by setting the DMAR bit
- in the USART CR3 register */
- husart->Instance->CR3 |= USART_CR3_DMAR;
-
- /* Enable the DMA transfer for transmit request by setting the DMAT bit
- in the USART CR3 register */
- husart->Instance->CR3 |= USART_CR3_DMAT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Full-Duplex Transmit Receive an amount of data in non-blocking mode.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param pTxData: Pointer to data transmitted buffer
- * @param pRxData: Pointer to data received buffer
- * @param Size: Amount of data to be received
- * @note When the USART parity is enabled (PCE = 1) the data received contain the parity bit.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
-{
- uint32_t *tmp;
-
- if(husart->State == HAL_USART_STATE_READY)
- {
- if((pTxData == NULL) || (pRxData == NULL) || (Size == 0))
- {
- return HAL_ERROR;
- }
- /* Process Locked */
- __HAL_LOCK(husart);
-
- husart->pRxBuffPtr = pRxData;
- husart->RxXferSize = Size;
- husart->pTxBuffPtr = pTxData;
- husart->TxXferSize = Size;
-
- husart->ErrorCode = HAL_USART_ERROR_NONE;
- husart->State = HAL_USART_STATE_BUSY_TX_RX;
-
- /* Set the USART DMA Rx transfer complete callback */
- husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt;
-
- /* Set the USART DMA Half transfer complete callback */
- husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt;
-
- /* Set the USART DMA Tx transfer complete callback */
- husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt;
-
- /* Set the USART DMA Half transfer complete callback */
- husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt;
-
- /* Set the USART DMA Tx transfer error callback */
- husart->hdmatx->XferErrorCallback = USART_DMAError;
-
- /* Set the USART DMA Rx transfer error callback */
- husart->hdmarx->XferErrorCallback = USART_DMAError;
-
- /* Enable the USART receive DMA Stream */
- tmp = (uint32_t*)&pRxData;
- HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->DR, *(uint32_t*)tmp, Size);
-
- /* Enable the USART transmit DMA Stream */
- tmp = (uint32_t*)&pTxData;
- HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t*)tmp, (uint32_t)&husart->Instance->DR, Size);
-
- /* Clear the Overrun flag: mandatory for the second transfer in circular mode */
- __HAL_USART_CLEAR_OREFLAG(husart);
-
- /* Enable the DMA transfer for the receiver request by setting the DMAR bit
- in the USART CR3 register */
- husart->Instance->CR3 |= USART_CR3_DMAR;
-
- /* Enable the DMA transfer for transmit request by setting the DMAT bit
- in the USART CR3 register */
- husart->Instance->CR3 |= USART_CR3_DMAT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Pauses the DMA Transfer.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart)
-{
- /* Process Locked */
- __HAL_LOCK(husart);
-
- /* Disable the USART DMA Tx request */
- husart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_OK;
-}
-
-/**
- * @brief Resumes the DMA Transfer.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart)
-{
- /* Process Locked */
- __HAL_LOCK(husart);
-
- /* Enable the USART DMA Tx request */
- husart->Instance->CR3 |= USART_CR3_DMAT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_OK;
-}
-
-/**
- * @brief Stops the DMA Transfer.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart)
-{
- /* The Lock is not implemented on this API to allow the user application
- to call the HAL USART API under callbacks HAL_USART_TxCpltCallback() / HAL_USART_RxCpltCallback():
- when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
- and the correspond call back is executed HAL_USART_TxCpltCallback() / HAL_USART_RxCpltCallback()
- */
-
- /* Abort the USART DMA Tx Stream */
- if(husart->hdmatx != NULL)
- {
- HAL_DMA_Abort(husart->hdmatx);
- }
- /* Abort the USART DMA Rx Stream */
- if(husart->hdmarx != NULL)
- {
- HAL_DMA_Abort(husart->hdmarx);
- }
-
- /* Disable the USART Tx/Rx DMA requests */
- husart->Instance->CR3 &= ~USART_CR3_DMAT;
- husart->Instance->CR3 &= ~USART_CR3_DMAR;
-
- husart->State = HAL_USART_STATE_READY;
-
- return HAL_OK;
-}
-
-/**
- * @brief This function handles USART interrupt request.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
-void HAL_USART_IRQHandler(USART_HandleTypeDef *husart)
-{
- uint32_t tmp1 = 0, tmp2 = 0;
-
- tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_PE);
- tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_PE);
- /* USART parity error interrupt occurred -----------------------------------*/
- if((tmp1 != RESET) && (tmp2 != RESET))
- {
- __HAL_USART_CLEAR_PEFLAG(husart);
- husart->ErrorCode |= HAL_USART_ERROR_PE;
- }
-
- tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_FE);
- tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR);
- /* USART frame error interrupt occurred ------------------------------------*/
- if((tmp1 != RESET) && (tmp2 != RESET))
- {
- __HAL_USART_CLEAR_FEFLAG(husart);
- husart->ErrorCode |= HAL_USART_ERROR_FE;
- }
-
- tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_NE);
- tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR);
- /* USART noise error interrupt occurred ------------------------------------*/
- if((tmp1 != RESET) && (tmp2 != RESET))
- {
- __HAL_USART_CLEAR_NEFLAG(husart);
- husart->ErrorCode |= HAL_USART_ERROR_NE;
- }
-
- tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_ORE);
- tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_ERR);
- /* USART Over-Run interrupt occurred ---------------------------------------*/
- if((tmp1 != RESET) && (tmp2 != RESET))
- {
- __HAL_USART_CLEAR_OREFLAG(husart);
- husart->ErrorCode |= HAL_USART_ERROR_ORE;
- }
-
- if(husart->ErrorCode != HAL_USART_ERROR_NONE)
- {
- /* Set the USART state ready to be able to start again the process */
- husart->State = HAL_USART_STATE_READY;
-
- HAL_USART_ErrorCallback(husart);
- }
-
- tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_RXNE);
- tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_RXNE);
- /* USART in mode Receiver --------------------------------------------------*/
- if((tmp1 != RESET) && (tmp2 != RESET))
- {
- if(husart->State == HAL_USART_STATE_BUSY_RX)
- {
- USART_Receive_IT(husart);
- }
- else
- {
- USART_TransmitReceive_IT(husart);
- }
- }
-
- tmp1 = __HAL_USART_GET_FLAG(husart, USART_FLAG_TXE);
- tmp2 = __HAL_USART_GET_IT_SOURCE(husart, USART_IT_TXE);
- /* USART in mode Transmitter -----------------------------------------------*/
- if((tmp1 != RESET) && (tmp2 != RESET))
- {
- if(husart->State == HAL_USART_STATE_BUSY_TX)
- {
- USART_Transmit_IT(husart);
- }
- else
- {
- USART_TransmitReceive_IT(husart);
- }
- }
-}
-
-/**
- * @brief Tx Transfer completed callbacks.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
- __weak void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_USART_TxCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief Tx Half Transfer completed callbacks.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
- __weak void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_USART_TxCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief Rx Transfer completed callbacks.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
-__weak void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_USART_TxCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief Rx Half Transfer completed callbacks.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
-__weak void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_USART_TxCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief Tx/Rx Transfers completed callback for the non-blocking process.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
-__weak void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_USART_TxCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief USART error callbacks.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
- __weak void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_USART_ErrorCallback could be implemented in the user file
- */
-}
-
-/**
- * @}
- */
-
-/** @defgroup USART_Group3 Peripheral State and Errors functions
- * @brief USART State and Errors functions
- *
-@verbatim
- ==============================================================================
- ##### Peripheral State and Errors functions #####
- ==============================================================================
- [..]
- This subsection provides a set of functions allowing to return the State of
- USART communication
- process, return Peripheral Errors occurred during communication process
- (+) HAL_USART_GetState() API can be helpful to check in run-time the state
- of the USART peripheral.
- (+) HAL_USART_GetError() check in run-time errors that could be occurred during
- communication.
-@endverbatim
- * @{
- */
-
-/**
- * @brief Returns the USART state.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval HAL state
- */
-HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart)
-{
- return husart->State;
-}
-
-/**
- * @brief Return the USART error code
- * @param husart : pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART.
- * @retval USART Error Code
- */
-uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart)
-{
- return husart->ErrorCode;
-}
-
-/**
- * @}
- */
-
-
-/**
- * @brief DMA USART transmit process complete callback.
- * @param hdma: DMA handle
- * @retval None
- */
-static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma)
-{
- USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
- /* DMA Normal mode */
- if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
- {
- husart->TxXferCount = 0;
- if(husart->State == HAL_USART_STATE_BUSY_TX)
- {
- /* Wait for USART TC Flag */
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, USART_TIMEOUT_VALUE) != HAL_OK)
- {
- /* Timeout occurred */
- husart->State = HAL_USART_STATE_TIMEOUT;
- HAL_USART_ErrorCallback(husart);
- }
- else
- {
- /* No Timeout */
- /* Disable the DMA transfer for transmit request by setting the DMAT bit
- in the USART CR3 register */
- husart->Instance->CR3 &= ~(USART_CR3_DMAT);
- husart->State= HAL_USART_STATE_READY;
- HAL_USART_TxCpltCallback(husart);
- }
- }
- }
- /* DMA Circular mode */
- else
- {
- if(husart->State == HAL_USART_STATE_BUSY_TX)
- {
- HAL_USART_TxCpltCallback(husart);
- }
- }
-}
-
-/**
- * @brief DMA USART 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 USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma)
-{
- USART_HandleTypeDef* husart = (USART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
-
- HAL_USART_TxHalfCpltCallback(husart);
-}
-
-/**
- * @brief DMA USART receive process complete callback.
- * @param hdma: DMA handle
- * @retval None
- */
-static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
-{
- USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
- /* DMA Normal mode */
- if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
- {
- husart->RxXferCount = 0;
- husart->State= HAL_USART_STATE_READY;
- if(husart->State == HAL_USART_STATE_BUSY_RX)
- {
- /* Disable the DMA transfer for the Transmit/receiver requests by setting the DMAT/DMAR bit
- in the USART CR3 register */
- husart->Instance->CR3 &= ~(USART_CR3_DMAR);
-
- HAL_USART_RxCpltCallback(husart);
- }
- /* the usart state is HAL_USART_STATE_BUSY_TX_RX*/
- else
- {
- /* Disable the DMA transfer for the Transmit/receiver requests by setting the DMAT/DMAR bit
- in the USART CR3 register */
- husart->Instance->CR3 &= ~(USART_CR3_DMAR);
- husart->Instance->CR3 &= ~(USART_CR3_DMAT);
-
- HAL_USART_TxRxCpltCallback(husart);
- }
- }
- /* DMA circular mode */
- else
- {
- if(husart->State == HAL_USART_STATE_BUSY_RX)
- {
- HAL_USART_RxCpltCallback(husart);
- }
- /* the usart state is HAL_USART_STATE_BUSY_TX_RX*/
- else
- {
- HAL_USART_TxRxCpltCallback(husart);
- }
- }
-}
-
-/**
- * @brief DMA USART 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 USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma)
-{
- USART_HandleTypeDef* husart = (USART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
-
- HAL_USART_RxHalfCpltCallback(husart);
-}
-
-/**
- * @brief DMA USART communication error callback.
- * @param hdma: DMA handle
- * @retval None
- */
-static void USART_DMAError(DMA_HandleTypeDef *hdma)
-{
- USART_HandleTypeDef* husart = ( USART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
-
- husart->RxXferCount = 0;
- husart->TxXferCount = 0;
- husart->ErrorCode |= HAL_USART_ERROR_DMA;
- husart->State= HAL_USART_STATE_READY;
-
- HAL_USART_ErrorCallback(husart);
-}
-
-/**
- * @brief This function handles USART Communication Timeout.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @param Flag: specifies the USART flag to check.
- * @param Status: The new Flag status (SET or RESET).
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- /* Wait until flag is set */
- if(Status == RESET)
- {
- while(__HAL_USART_GET_FLAG(husart, Flag) == RESET)
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
- __USART_DISABLE_IT(husart, USART_IT_TXE);
- __USART_DISABLE_IT(husart, USART_IT_RXNE);
- __USART_DISABLE_IT(husart, USART_IT_PE);
- __USART_DISABLE_IT(husart, USART_IT_ERR);
-
- husart->State= HAL_USART_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_TIMEOUT;
- }
- }
- }
- }
- else
- {
- while(__HAL_USART_GET_FLAG(husart, Flag) != RESET)
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */
- __USART_DISABLE_IT(husart, USART_IT_TXE);
- __USART_DISABLE_IT(husart, USART_IT_RXNE);
- __USART_DISABLE_IT(husart, USART_IT_PE);
- __USART_DISABLE_IT(husart, USART_IT_ERR);
-
- husart->State= HAL_USART_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(husart);
-
- return HAL_TIMEOUT;
- }
- }
- }
- }
- return HAL_OK;
-}
-
-
-/**
- * @brief Simplex Send an amount of data in non-blocking mode.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval HAL status
- * @note The USART errors are not managed to avoid the overrun error.
- */
-static HAL_StatusTypeDef USART_Transmit_IT(USART_HandleTypeDef *husart)
-{
- uint16_t* tmp;
-
- if(husart->State == HAL_USART_STATE_BUSY_TX)
- {
- if(husart->Init.WordLength == USART_WORDLENGTH_9B)
- {
- tmp = (uint16_t*) husart->pTxBuffPtr;
- husart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- husart->pTxBuffPtr += 2;
- }
- else
- {
- husart->pTxBuffPtr += 1;
- }
- }
- else
- {
- husart->Instance->DR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)0x00FF);
- }
-
- if(--husart->TxXferCount == 0)
- {
- /* Disable the USART Transmit data register empty Interrupt */
- __USART_DISABLE_IT(husart, USART_IT_TXE);
-
- /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
- __USART_DISABLE_IT(husart, USART_IT_ERR);
-
-
- if(USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, USART_TIMEOUT_VALUE) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- husart->State = HAL_USART_STATE_READY;
-
- HAL_USART_TxCpltCallback(husart);
-
- return HAL_OK;
- }
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Simplex Receive an amount of data in non-blocking mode.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval HAL status
- */
-static HAL_StatusTypeDef USART_Receive_IT(USART_HandleTypeDef *husart)
-{
- uint16_t* tmp;
- if(husart->State == HAL_USART_STATE_BUSY_RX)
- {
- if(husart->Init.WordLength == USART_WORDLENGTH_9B)
- {
- tmp = (uint16_t*) husart->pRxBuffPtr;
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
- husart->pRxBuffPtr += 2;
- }
- else
- {
- *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
- husart->pRxBuffPtr += 1;
- }
- if(--husart->RxXferCount != 0x00)
- {
- /* Send dummy byte in order to generate the clock for the slave to send the next data */
- husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x01FF);
- }
- }
- else
- {
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
- }
- else
- {
- *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
- }
-
- if(--husart->RxXferCount != 0x00)
- {
- /* Send dummy byte in order to generate the clock for the slave to send the next data */
- husart->Instance->DR = (DUMMY_DATA & (uint16_t)0x00FF);
- }
- }
-
- if(husart->RxXferCount == 0)
- {
- /* Disable the USART RXNE Interrupt */
- __USART_DISABLE_IT(husart, USART_IT_RXNE);
-
- /* Disable the USART Parity Error Interrupt */
- __USART_DISABLE_IT(husart, USART_IT_PE);
-
- /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
- __USART_DISABLE_IT(husart, USART_IT_ERR);
-
- husart->State = HAL_USART_STATE_READY;
- HAL_USART_RxCpltCallback(husart);
-
- return HAL_OK;
- }
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Full-Duplex Send receive an amount of data in full-duplex mode (non-blocking).
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval HAL status
- */
-static HAL_StatusTypeDef USART_TransmitReceive_IT(USART_HandleTypeDef *husart)
-{
- uint16_t* tmp;
-
- if(husart->State == HAL_USART_STATE_BUSY_TX_RX)
- {
- if(husart->TxXferCount != 0x00)
- {
- if(__HAL_USART_GET_FLAG(husart, USART_FLAG_TXE) != RESET)
- {
- if(husart->Init.WordLength == USART_WORDLENGTH_9B)
- {
- tmp = (uint16_t*) husart->pTxBuffPtr;
- husart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- husart->pTxBuffPtr += 2;
- }
- else
- {
- husart->pTxBuffPtr += 1;
- }
- }
- else
- {
- husart->Instance->DR = (uint8_t)(*husart->pTxBuffPtr++ & (uint8_t)0x00FF);
- }
- husart->TxXferCount--;
-
- /* Check the latest data transmitted */
- if(husart->TxXferCount == 0)
- {
- __USART_DISABLE_IT(husart, USART_IT_TXE);
- }
- }
- }
-
- if(husart->RxXferCount != 0x00)
- {
- if(__HAL_USART_GET_FLAG(husart, USART_FLAG_RXNE) != RESET)
- {
- if(husart->Init.WordLength == USART_WORDLENGTH_9B)
- {
- tmp = (uint16_t*) husart->pRxBuffPtr;
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x01FF);
- husart->pRxBuffPtr += 2;
- }
- else
- {
- *tmp = (uint16_t)(husart->Instance->DR & (uint16_t)0x00FF);
- husart->pRxBuffPtr += 1;
- }
- }
- else
- {
- if(husart->Init.Parity == USART_PARITY_NONE)
- {
- *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x00FF);
- }
- else
- {
- *husart->pRxBuffPtr++ = (uint8_t)(husart->Instance->DR & (uint8_t)0x007F);
- }
- }
- husart->RxXferCount--;
- }
- }
-
- /* Check the latest data received */
- if(husart->RxXferCount == 0)
- {
- __USART_DISABLE_IT(husart, USART_IT_RXNE);
-
- /* Disable the USART Parity Error Interrupt */
- __USART_DISABLE_IT(husart, USART_IT_PE);
-
- /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */
- __USART_DISABLE_IT(husart, USART_IT_ERR);
-
- husart->State = HAL_USART_STATE_READY;
-
- HAL_USART_TxRxCpltCallback(husart);
-
- return HAL_OK;
- }
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Configures the USART peripheral.
- * @param husart: pointer to a USART_HandleTypeDef structure that contains
- * the configuration information for the specified USART module.
- * @retval None
- */
-static void USART_SetConfig(USART_HandleTypeDef *husart)
-{
- uint32_t tmpreg = 0x00;
-
- /* Check the parameters */
- assert_param(IS_USART_INSTANCE(husart->Instance));
- assert_param(IS_USART_POLARITY(husart->Init.CLKPolarity));
- assert_param(IS_USART_PHASE(husart->Init.CLKPhase));
- assert_param(IS_USART_LASTBIT(husart->Init.CLKLastBit));
- assert_param(IS_USART_BAUDRATE(husart->Init.BaudRate));
- assert_param(IS_USART_WORD_LENGTH(husart->Init.WordLength));
- assert_param(IS_USART_STOPBITS(husart->Init.StopBits));
- assert_param(IS_USART_PARITY(husart->Init.Parity));
- assert_param(IS_USART_MODE(husart->Init.Mode));
-
- /* The LBCL, CPOL and CPHA bits have to be selected when both the transmitter and the
- receiver are disabled (TE=RE=0) to ensure that the clock pulses function correctly. */
- husart->Instance->CR1 &= (uint32_t)~((uint32_t)(USART_CR1_TE | USART_CR1_RE));
-
- /*---------------------------- USART CR2 Configuration ---------------------*/
- tmpreg = husart->Instance->CR2;
- /* Clear CLKEN, CPOL, CPHA and LBCL bits */
- tmpreg &= (uint32_t)~((uint32_t)(USART_CR2_CPHA | USART_CR2_CPOL | USART_CR2_CLKEN | USART_CR2_LBCL | USART_CR2_STOP));
- /* Configure the USART Clock, CPOL, CPHA and LastBit -----------------------*/
- /* Set CPOL bit according to husart->Init.CLKPolarity value */
- /* Set CPHA bit according to husart->Init.CLKPhase value */
- /* Set LBCL bit according to husart->Init.CLKLastBit value */
- /* Set Stop Bits: Set STOP[13:12] bits according to husart->Init.StopBits value */
- tmpreg |= (uint32_t)(USART_CLOCK_ENABLED| husart->Init.CLKPolarity |
- husart->Init.CLKPhase| husart->Init.CLKLastBit | husart->Init.StopBits);
- /* Write to USART CR2 */
- husart->Instance->CR2 = (uint32_t)tmpreg;
-
- /*-------------------------- USART CR1 Configuration -----------------------*/
- tmpreg = husart->Instance->CR1;
-
- /* Clear M, PCE, PS, TE and RE bits */
- tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | \
- USART_CR1_RE));
-
- /* Configure the USART Word Length, Parity and mode:
- Set the M bits according to husart->Init.WordLength value
- Set PCE and PS bits according to husart->Init.Parity value
- Set TE and RE bits according to husart->Init.Mode value */
- tmpreg |= (uint32_t)husart->Init.WordLength | husart->Init.Parity | husart->Init.Mode;
-
- /* Write to USART CR1 */
- husart->Instance->CR1 = (uint32_t)tmpreg;
-
- /*-------------------------- USART CR3 Configuration -----------------------*/
- /* Clear CTSE and RTSE bits */
- husart->Instance->CR3 &= (uint32_t)~((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE));
-
- /*-------------------------- USART BRR Configuration -----------------------*/
- if((husart->Instance == USART1) || (husart->Instance == USART6))
- {
- husart->Instance->BRR = __USART_BRR(HAL_RCC_GetPCLK2Freq(), husart->Init.BaudRate);
- }
- else
- {
- husart->Instance->BRR = __USART_BRR(HAL_RCC_GetPCLK1Freq(), husart->Init.BaudRate);
- }
-}
-
-/**
- * @}
- */
-
-#endif /* HAL_USART_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
