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Diff: targets/cmsis/TARGET_STM/TARGET_NUCLEO_F091RC/stm32f0xx_hal_uart.c
- Revision:
- 392:2b59412bb664
- Parent:
- 391:42ba2fb9673a
- Child:
- 393:17d2d502961d
--- a/targets/cmsis/TARGET_STM/TARGET_NUCLEO_F091RC/stm32f0xx_hal_uart.c Thu Nov 06 14:00:08 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1811 +0,0 @@
-/**
- ******************************************************************************
- * @file stm32f0xx_hal_uart.c
- * @author MCD Application Team
- * @version V1.1.0
- * @date 03-Oct-2014
- * @brief UART HAL module driver.
- * This file provides firmware functions to manage the following
- * functionalities of the Universal Asynchronous Receiver Transmitter (UART) peripheral:
- * + Initialization and de-initialization functions
- * + IO operation functions
- * + Peripheral Control functions
- * + Peripheral State and Errors functions
- @verbatim
- ===============================================================================
- ##### How to use this driver #####
-================================================================================
- [..]
- The UART HAL driver can be used as follows:
-
- (#) Declare a UART_HandleTypeDef handle structure.
-
- (#) Initialize the UART low level resources by implementing the HAL_UART_MspInit ()API:
- (##) Enable the USARTx interface clock.
- (##) UART pins configuration:
- (+++) Enable the clock for the UART GPIOs.
- (+++) Configure these UART pins as alternate function pull-up.
- (##) NVIC configuration if you need to use interrupt process (HAL_UART_Transmit_IT()
- and HAL_UART_Receive_IT() APIs):
- (+++) Configure the USARTx interrupt priority.
- (+++) Enable the NVIC USART IRQ handle.
- (##) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA()
- and HAL_UART_Receive_DMA() APIs):
- (+++) Declare a DMA handle structure for the Tx/Rx channel.
- (+++) Enable the DMAx interface clock.
- (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
- (+++) Configure the DMA Tx/Rx channel.
- (+++) Associate the initilalized DMA handle to the UART DMA Tx/Rx handle.
- (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx channel.
-
- (#) Program the Baud Rate, Word Length , Stop Bit, Parity, Hardware
- flow control and Mode(Receiver/Transmitter) in the huart Init structure.
-
- (#) If required, program UART advanced features (TX/RX pins swap, auto Baud rate detection,...)
- in the huart AdvancedInit structure.
-
- (#) For the UART asynchronous mode, initialize the UART registers by calling
- the HAL_UART_Init() API.
-
- (#) For the UART Half duplex mode, initialize the UART registers by calling
- the HAL_HalfDuplex_Init() API.
-
- (#) For the UART Multiprocessor mode, initialize the UART registers
- by calling the HAL_MultiProcessor_Init() API.
-
- (#) For the UART RS485 Driver Enabled mode, initialize the UART registers
- by calling the HAL_RS485Ex_Init() API.
-
- [..]
- (@) The specific UART interrupts (Transmission complete interrupt,
- RXNE interrupt and Error Interrupts) will be managed using the macros
- __HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() inside the transmit and receive process.
-
- [..]
- (@) These APIs(HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_MultiProcessor_Init(),
- also configure also the low level Hardware GPIO, CLOCK, CORTEX...etc) by
- calling the customed HAL_UART_MspInit() API.
-
- Three operation modes are available within this driver :
-
- *** Polling mode IO operation ***
- =================================
- [..]
- (+) Send an amount of data in blocking mode using HAL_UART_Transmit()
- (+) Receive an amount of data in blocking mode using HAL_UART_Receive()
-
- *** Interrupt mode IO operation ***
- ===================================
- [..]
- (+) Send an amount of data in non blocking mode using HAL_UART_Transmit_IT()
- (+) At transmission end of half transfer HAL_UART_TxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_UART_TxHalfCpltCallback
- (+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_UART_TxCpltCallback
- (+) Receive an amount of data in non blocking mode using HAL_UART_Receive_IT()
- (+) At reception end of half transfer HAL_UART_RxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_UART_RxHalfCpltCallback
- (+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_UART_RxCpltCallback
- (+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
- add his own code by customization of function pointer HAL_UART_ErrorCallback
-
- *** DMA mode IO operation ***
- ==============================
- [..]
- (+) Send an amount of data in non blocking mode (DMA) using HAL_UART_Transmit_DMA()
- (+) At transmission end of half transfer HAL_UART_TxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_UART_TxHalfCpltCallback
- (+) At transmission end of transfer HAL_UART_TxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_UART_TxCpltCallback
- (+) Receive an amount of data in non blocking mode (DMA) using HAL_UART_Receive_DMA()
- (+) At reception end of half transfer HAL_UART_RxHalfCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_UART_RxHalfCpltCallback
- (+) At reception end of transfer HAL_UART_RxCpltCallback is executed and user can
- add his own code by customization of function pointer HAL_UART_RxCpltCallback
- (+) In case of transfer Error, HAL_UART_ErrorCallback() function is executed and user can
- add his own code by customization of function pointer HAL_UART_ErrorCallback
- (+) Pause the DMA Transfer using HAL_UART_DMAPause()
- (+) Resume the DMA Transfer using HAL_UART_DMAResume()
- (+) Stop the DMA Transfer using HAL_UART_DMAStop()
-
- *** UART HAL driver macros list ***
- =============================================
- [..]
- Below the list of most used macros in UART HAL driver.
-
- (+) __HAL_UART_ENABLE: Enable the UART peripheral
- (+) __HAL_UART_DISABLE: Disable the UART peripheral
- (+) __HAL_UART_GET_FLAG : Check whether the specified UART flag is set or not
- (+) __HAL_UART_CLEAR_FLAG : Clear the specified UART pending flag
- (+) __HAL_UART_ENABLE_IT: Enable the specified UART interrupt
- (+) __HAL_UART_DISABLE_IT: Disable the specified UART interrupt
-
- [..]
- (@) You can refer to the UART 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 "stm32f0xx_hal.h"
-
-/** @addtogroup STM32F0xx_HAL_Driver
- * @{
- */
-
-/** @defgroup UART UART HAL module driver
- * @brief HAL UART module driver
- * @{
- */
-#ifdef HAL_UART_MODULE_ENABLED
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/** @defgroup UART_Private_Constants UART Private Constants
- * @{
- */
-#define HAL_UART_TXDMA_TIMEOUTVALUE 22000
-#define UART_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | \
- USART_CR1_TE | USART_CR1_RE | USART_CR1_OVER8))
-/**
- * @}
- */
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/** @addtogroup UART_Private_Functions UART Private Functions
- * @{
- */
-static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma);
-static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma);
-static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
-static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma);
-static void UART_DMAError(DMA_HandleTypeDef *hdma);
-/**
- * @}
- */
-
-/* Exported functions ---------------------------------------------------------*/
-
-/** @defgroup UART_Exported_Functions UART Exported Functions
- * @{
- */
-
-/** @defgroup UART_Exported_Functions_Group1 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 USARTx or the UARTy
- in asynchronous mode.
- (+) 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),
- the possible UART frame formats are as listed in the following table:
- |-----------|-----------|---------------------------------------|
- | M1M0 bits | PCE bit | UART frame |
- |-----------------------|---------------------------------------|
- | 00 | 0 | | SB | 8-bit data | STB | |
- |-----------|-----------|---------------------------------------|
- | 00 | 1 | | SB | 7-bit data | PB | STB | |
- |-----------|-----------|---------------------------------------|
- | 01 | 0 | | SB | 9-bit data | STB | |
- |-----------|-----------|---------------------------------------|
- | 01 | 1 | | SB | 8-bit data | PB | STB | |
- +---------------------------------------------------------------+
- | 10 | 0 | | SB | 7-bit data | STB | |
- |-----------|-----------|---------------------------------------|
- | 10 | 1 | | SB | 6-bit data | PB | STB | |
- +---------------------------------------------------------------+
- (++) Hardware flow control
- (++) Receiver/transmitter modes
- (++) Over Sampling Method
- (++) One-Bit Sampling Method
- (+) For the asynchronous mode, the following advanced features can be configured as well:
- (++) TX and/or RX pin level inversion
- (++) data logical level inversion
- (++) RX and TX pins swap
- (++) RX overrun detection disabling
- (++) DMA disabling on RX error
- (++) MSB first on communication line
- (++) auto Baud rate detection
- [..]
- The HAL_UART_Init(), HAL_HalfDuplex_Init() and HAL_MultiProcessor_Init()
- API follow respectively the UART asynchronous, UART Half duplex and multiprocessor
- configuration procedures (details for the procedures are available in reference manual).
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the UART mode according to the specified
- * parameters in the UART_InitTypeDef and creates the associated handle .
- * @param huart: uart handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
-{
- /* Check the UART handle allocation */
- if(huart == HAL_NULL)
- {
- return HAL_ERROR;
- }
-
- if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE)
- {
- /* Check the parameters */
- assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance));
- }
- else
- {
- /* Check the parameters */
- assert_param(IS_UART_INSTANCE(huart->Instance));
- }
-
- if(huart->State == HAL_UART_STATE_RESET)
- {
- /* Init the low level hardware : GPIO, CLOCK */
- HAL_UART_MspInit(huart);
- }
-
- huart->State = HAL_UART_STATE_BUSY;
-
- /* Disable the Peripheral */
- __HAL_UART_DISABLE(huart);
-
- /* Set the UART Communication parameters */
- if (UART_SetConfig(huart) == HAL_ERROR)
- {
- return HAL_ERROR;
- }
-
- if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
- {
- UART_AdvFeatureConfig(huart);
- }
-
- /* In asynchronous 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.*/
- huart->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN);
- huart->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN);
-
- /* Enable the Peripheral */
- __HAL_UART_ENABLE(huart);
-
- /* TEACK and/or REACK to check before moving huart->State to Ready */
- return (UART_CheckIdleState(huart));
-}
-
-/**
- * @brief Initializes the half-duplex mode according to the specified
- * parameters in the UART_InitTypeDef and creates the associated handle .
- * @param huart: uart handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart)
-{
- /* Check the UART handle allocation */
- if(huart == HAL_NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check UART instance */
- assert_param(IS_UART_HALFDUPLEX_INSTANCE(huart->Instance));
-
- if(huart->State == HAL_UART_STATE_RESET)
- {
- /* Init the low level hardware : GPIO, CLOCK */
- HAL_UART_MspInit(huart);
- }
-
- huart->State = HAL_UART_STATE_BUSY;
-
- /* Disable the Peripheral */
- __HAL_UART_DISABLE(huart);
-
- /* Set the UART Communication parameters */
- if (UART_SetConfig(huart) == HAL_ERROR)
- {
- return HAL_ERROR;
- }
-
- if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
- {
- UART_AdvFeatureConfig(huart);
- }
-
- /* In half-duplex mode, the following bits must be kept cleared:
- - LINEN and CLKEN bits in the USART_CR2 register,
- - SCEN and IREN bits in the USART_CR3 register.*/
- huart->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN);
- huart->Instance->CR3 &= ~(USART_CR3_IREN | USART_CR3_SCEN);
-
- /* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */
- huart->Instance->CR3 |= USART_CR3_HDSEL;
-
- /* Enable the Peripheral */
- __HAL_UART_ENABLE(huart);
-
- /* TEACK and/or REACK to check before moving huart->State to Ready */
- return (UART_CheckIdleState(huart));
-}
-
-
-/**
- * @brief Initializes the multiprocessor mode according to the specified
- * parameters in the UART_InitTypeDef and creates the associated handle.
- * @param huart: UART handle
- * @param Address: UART node address (4-, 6-, 7- or 8-bit long)
- * @param WakeUpMethod: specifies the UART wakeup method.
- * This parameter can be one of the following values:
- * @arg UART_WAKEUPMETHOD_IDLELINE: WakeUp by an idle line detection
- * @arg UART_WAKEUPMETHOD_ADDRESSMARK: WakeUp by an address mark
- * @note If the user resorts to idle line detection wake up, the Address parameter
- * is useless and ignored by the initialization function.
- * @note If the user resorts to address mark wake up, the address length detection
- * is configured by default to 4 bits only. For the UART to be able to
- * manage 6-, 7- or 8-bit long addresses detection, the API
- * HAL_MultiProcessorEx_AddressLength_Set() must be called after
- * HAL_MultiProcessor_Init().
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod)
-{
- /* Check the UART handle allocation */
- if(huart == HAL_NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the wake up method parameter */
- assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod));
-
- if(huart->State == HAL_UART_STATE_RESET)
- {
- /* Init the low level hardware : GPIO, CLOCK */
- HAL_UART_MspInit(huart);
- }
-
- huart->State = HAL_UART_STATE_BUSY;
-
- /* Disable the Peripheral */
- __HAL_UART_DISABLE(huart);
-
- /* Set the UART Communication parameters */
- if (UART_SetConfig(huart) == HAL_ERROR)
- {
- return HAL_ERROR;
- }
-
- if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
- {
- UART_AdvFeatureConfig(huart);
- }
-
- /* In multiprocessor 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. */
- huart->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN);
- huart->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN);
-
- if (WakeUpMethod == UART_WAKEUPMETHOD_ADDRESSMARK)
- {
- /* If address mark wake up method is chosen, set the USART address node */
- MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)Address << UART_CR2_ADDRESS_LSB_POS));
- }
-
- /* 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);
-
- /* TEACK and/or REACK to check before moving huart->State to Ready */
- return (UART_CheckIdleState(huart));
-}
-
-/**
- * @brief DeInitializes the UART peripheral
- * @param huart: uart handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
-{
- /* Check the UART handle allocation */
- if(huart == HAL_NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_UART_INSTANCE(huart->Instance));
-
- huart->State = HAL_UART_STATE_BUSY;
-
- /* Disable the Peripheral */
- __HAL_UART_DISABLE(huart);
-
- huart->Instance->CR1 = 0x0;
- huart->Instance->CR2 = 0x0;
- huart->Instance->CR3 = 0x0;
-
- /* DeInit the low level hardware */
- HAL_UART_MspDeInit(huart);
-
- huart->ErrorCode = HAL_UART_ERROR_NONE;
- huart->State = HAL_UART_STATE_RESET;
-
- /* Process Unlock */
- __HAL_UNLOCK(huart);
-
- return HAL_OK;
-}
-
-/**
- * @brief UART MSP Init
- * @param huart: uart handle
- * @retval None
- */
- __weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
-{
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_UART_MspInit can be implemented in the user file
- */
-}
-
-/**
- * @brief UART MSP DeInit
- * @param huart: uart handle
- * @retval None
- */
- __weak void HAL_UART_MspDeInit(UART_HandleTypeDef *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 mode 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 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 respectivelly 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()
- (++) UART_Transmit_IT()
- (++) UART_Receive_IT()
-
- (#) Non Blocking mode APIs 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 Send an amount of data in blocking mode
- * @param huart: uart handle
- * @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;
-
- if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_RX))
- {
- if((pData == HAL_NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(huart);
-
- huart->ErrorCode = HAL_UART_ERROR_NONE;
- /* Check if a non-blocking receive process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_RX)
- {
- huart->State = HAL_UART_STATE_BUSY_TX_RX;
- }
- else
- {
- huart->State = HAL_UART_STATE_BUSY_TX;
- }
-
- huart->TxXferSize = Size;
- huart->TxXferCount = Size;
- while(huart->TxXferCount > 0)
- {
- huart->TxXferCount--;
- if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
- {
- tmp = (uint16_t*) pData;
- huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
- pData += 2;
- }
- else
- {
- huart->Instance->TDR = (*pData++ & (uint8_t)0xFF);
- }
- }
- if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- /* Check if a non-blocking receive Process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
- {
- huart->State = HAL_UART_STATE_BUSY_RX;
- }
- else
- {
- huart->State = 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: uart handle
- * @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;
- uint16_t uhMask;
-
- if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_TX))
- {
- if((pData == HAL_NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(huart);
-
- huart->ErrorCode = HAL_UART_ERROR_NONE;
- /* Check if a non-blocking transmit process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_TX)
- {
- huart->State = HAL_UART_STATE_BUSY_TX_RX;
- }
- else
- {
- huart->State = HAL_UART_STATE_BUSY_RX;
- }
-
- huart->RxXferSize = Size;
- huart->RxXferCount = Size;
-
- /* Computation of UART mask to apply to RDR register */
- __HAL_UART_MASK_COMPUTATION(huart);
- uhMask = huart->Mask;
-
- /* as long as data have to be received */
- while(huart->RxXferCount > 0)
- {
- huart->RxXferCount--;
- if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK)
- {
- return HAL_TIMEOUT;
- }
- if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
- {
- tmp = (uint16_t*) pData ;
- *tmp = (uint16_t)(huart->Instance->RDR & uhMask);
- pData +=2;
- }
- else
- {
- *pData++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
- }
- }
-
- /* Check if a non-blocking transmit Process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
- {
- huart->State = HAL_UART_STATE_BUSY_TX;
- }
- else
- {
- huart->State = HAL_UART_STATE_READY;
- }
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Send an amount of data in interrupt mode
- * @param huart: uart handle
- * @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)
-{
- if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_RX))
- {
- if((pData == HAL_NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(huart);
-
- huart->pTxBuffPtr = pData;
- huart->TxXferSize = Size;
- huart->TxXferCount = Size;
-
- huart->ErrorCode = HAL_UART_ERROR_NONE;
- /* Check if a receive process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_RX)
- {
- huart->State = HAL_UART_STATE_BUSY_TX_RX;
- }
- else
- {
- huart->State = HAL_UART_STATE_BUSY_TX;
- }
-
- /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */
- __HAL_UART_ENABLE_IT(huart, UART_IT_ERR);
-
- /* 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 Receive an amount of data in interrupt mode
- * @param huart: uart handle
- * @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)
-{
- if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_TX))
- {
- if((pData == HAL_NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(huart);
-
- huart->pRxBuffPtr = pData;
- huart->RxXferSize = Size;
- huart->RxXferCount = Size;
-
- /* Computation of UART mask to apply to RDR register */
- __HAL_UART_MASK_COMPUTATION(huart);
-
- huart->ErrorCode = HAL_UART_ERROR_NONE;
- /* Check if a transmit process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_TX)
- {
- huart->State = HAL_UART_STATE_BUSY_TX_RX;
- }
- else
- {
- huart->State = HAL_UART_STATE_BUSY_RX;
- }
-
- /* 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);
-
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- /* Enable the UART Data Register not empty Interrupt */
- __HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Send an amount of data in DMA mode
- * @param huart: uart handle
- * @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;
-
- if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_RX))
- {
- if((pData == HAL_NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(huart);
-
- huart->pTxBuffPtr = pData;
- huart->TxXferSize = Size;
- huart->TxXferCount = Size;
-
- huart->ErrorCode = HAL_UART_ERROR_NONE;
- /* Check if a receive process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_RX)
- {
- huart->State = HAL_UART_STATE_BUSY_TX_RX;
- }
- else
- {
- huart->State = 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;
-
- /* Enable the UART transmit DMA channel */
- tmp = (uint32_t*)&pData;
- HAL_DMA_Start_IT(huart->hdmatx, *(uint32_t*)tmp, (uint32_t)&huart->Instance->TDR, Size);
-
- /* Enable the DMA transfer for transmit request by setting the DMAT bit
- in the UART CR3 register */
- huart->Instance->CR3 |= USART_CR3_DMAT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Receive an amount of data in DMA mode
- * @param huart: uart handle
- * @param pData: pointer to data buffer
- * @param Size: amount of data to be received
- * @note When the UART parity is enabled (PCE = 1), the received data contain
- * the parity bit (MSB position)
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
-{
- uint32_t *tmp;
-
- if((huart->State == HAL_UART_STATE_READY) || (huart->State == HAL_UART_STATE_BUSY_TX))
- {
- if((pData == HAL_NULL ) || (Size == 0))
- {
- return HAL_ERROR;
- }
-
- /* Process Locked */
- __HAL_LOCK(huart);
-
- huart->pRxBuffPtr = pData;
- huart->RxXferSize = Size;
-
- huart->ErrorCode = HAL_UART_ERROR_NONE;
- /* Check if a transmit process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_TX)
- {
- huart->State = HAL_UART_STATE_BUSY_TX_RX;
- }
- else
- {
- huart->State = 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;
-
- /* Enable the DMA channel */
- tmp = (uint32_t*)&pData;
- HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->RDR, *(uint32_t*)tmp, Size);
-
- /* Enable the DMA transfer for the receiver request by setting the DMAR bit
- in the UART CR3 register */
- huart->Instance->CR3 |= USART_CR3_DMAR;
-
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Pauses the DMA Transfer.
- * @param huart: UART handle
- * @retval None
- */
-HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
-{
- /* Process Locked */
- __HAL_LOCK(huart);
-
- if(huart->State == HAL_UART_STATE_BUSY_TX)
- {
- /* Disable the UART DMA Tx request */
- huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
- }
- else if(huart->State == HAL_UART_STATE_BUSY_RX)
- {
- /* Disable the UART DMA Rx request */
- huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
- }
- else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
- {
- /* Disable the UART DMA Tx request */
- huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT);
- /* Disable the UART DMA Rx request */
- huart->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_OK;
-}
-
-/**
- * @brief Resumes the DMA Transfer.
- * @param huart: UART handle
- * @retval None
- */
-HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
-{
- /* Process Locked */
- __HAL_LOCK(huart);
-
- if(huart->State == HAL_UART_STATE_BUSY_TX)
- {
- /* Enable the UART DMA Tx request */
- huart->Instance->CR3 |= USART_CR3_DMAT;
- }
- else if(huart->State == HAL_UART_STATE_BUSY_RX)
- {
- /* Enable the UART DMA Rx request */
- huart->Instance->CR3 |= USART_CR3_DMAR;
- }
- else if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
- {
- /* Enable the UART DMA Rx request before the DMA Tx request */
- huart->Instance->CR3 |= USART_CR3_DMAR;
- /* Enable the UART DMA Tx request */
- huart->Instance->CR3 |= USART_CR3_DMAT;
- }
-
- /* If the UART peripheral is still not enabled, enable it */
- if ((huart->Instance->CR1 & USART_CR1_UE) == 0)
- {
- /* Enable UART peripheral */
- __HAL_UART_ENABLE(huart);
- }
-
- /* TEACK and/or REACK to check before moving huart->State to Ready */
- return (UART_CheckIdleState(huart));
-}
-
-/**
- * @brief Stops the DMA Transfer.
- * @param huart: UART handle
- * @retval None
- */
-HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart)
-{
- /* Process Locked */
- __HAL_LOCK(huart);
-
- /* Disable the UART Tx/Rx DMA requests */
- huart->Instance->CR3 &= ~USART_CR3_DMAT;
- huart->Instance->CR3 &= ~USART_CR3_DMAR;
-
- /* Abort the UART DMA tx channel */
- if(huart->hdmatx != HAL_NULL)
- {
- HAL_DMA_Abort(huart->hdmatx);
- }
- /* Abort the UART DMA rx channel */
- if(huart->hdmarx != HAL_NULL)
- {
- HAL_DMA_Abort(huart->hdmarx);
- }
-
- /* Disable UART peripheral */
- __HAL_UART_DISABLE(huart);
-
- huart->State = HAL_UART_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_OK;
-}
-
-/**
- * @brief Tx Transfer completed callbacks
- * @param huart: uart handle
- * @retval None
- */
- __weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
-{
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_UART_TxCpltCallback can be implemented in the user file
- */
-}
-
-/**
- * @brief Tx Half Transfer completed callbacks.
- * @param huart: UART handle
- * @retval None
- */
- __weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart)
-{
- /* NOTE: This function should not be modified, when the callback is needed,
- the HAL_UART_TxHalfCpltCallback can be implemented in the user file
- */
-}
-
-/**
- * @brief Rx Transfer completed callbacks
- * @param huart: uart handle
- * @retval None
- */
-__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
-{
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_UART_RxCpltCallback can be implemented in the user file
- */
-}
-
-/**
- * @brief Rx Half Transfer completed callbacks.
- * @param huart: UART handle
- * @retval None
- */
-__weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
-{
- /* NOTE: This function should not be modified, when the callback is needed,
- the HAL_UART_RxHalfCpltCallback can be implemented in the user file
- */
-}
-
-/**
- * @brief UART error callbacks
- * @param huart: uart handle
- * @retval None
- */
- __weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
-{
- /* NOTE : This function should not be modified, when the callback is needed,
- the HAL_UART_ErrorCallback 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_UART_GetState() API is helpful to check in run-time the state of the UART peripheral.
- (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
- (+) HAL_MultiProcessor_DisableMuteMode() API disables mute mode
- (+) HAL_MultiProcessor_EnterMuteMode() API enters mute mode
- (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode
- (+) HAL_UART_EnableStopMode() API enables the UART to wake up the MCU from stop mode
- (+) HAL_UART_DisableStopMode() API disables the above functionality
- (+) UART_SetConfig() API configures the UART peripheral
- (+) UART_AdvFeatureConfig() API optionally configures the UART advanced features
- (+) UART_CheckIdleState() API ensures that TEACK and/or REACK are set after initialization
- (+) UART_Wakeup_AddressConfig() API configures the wake-up from stop mode parameters
- (+) HAL_HalfDuplex_EnableTransmitter() API disables receiver and enables transmitter
- (+) HAL_HalfDuplex_EnableReceiver() API disables transmitter and enables receiver
-@endverbatim
- * @{
- */
-
-/**
- * @brief Enable UART in mute mode (doesn't mean UART enters mute mode;
- * to enter mute mode, HAL_MultiProcessor_EnterMuteMode() API must be called)
- * @param huart: UART handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_MultiProcessor_EnableMuteMode(UART_HandleTypeDef *huart)
-{
- /* Process Locked */
- __HAL_LOCK(huart);
-
- huart->State = HAL_UART_STATE_BUSY;
-
- /* Enable USART mute mode by setting the MME bit in the CR1 register */
- huart->Instance->CR1 |= USART_CR1_MME;
-
- huart->State = HAL_UART_STATE_READY;
-
- return (UART_CheckIdleState(huart));
-}
-
-/**
- * @brief Disable UART mute mode (doesn't mean it actually wakes up the software,
- * as it may not have been in mute mode at this very moment).
- * @param huart: uart handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_MultiProcessor_DisableMuteMode(UART_HandleTypeDef *huart)
-{
- /* Process Locked */
- __HAL_LOCK(huart);
-
- huart->State = HAL_UART_STATE_BUSY;
-
- /* Disable USART mute mode by clearing the MME bit in the CR1 register */
- huart->Instance->CR1 &= ~(USART_CR1_MME);
-
- huart->State = HAL_UART_STATE_READY;
-
- return (UART_CheckIdleState(huart));
-}
-
-/**
- * @brief Enter UART mute mode (means UART actually enters mute mode).
- * To exit from mute mode, HAL_MultiProcessor_DisableMuteMode() API must be called.
- * @param huart: uart handle
- * @retval HAL status
- */
-void HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart)
-{
- __HAL_UART_SEND_REQ(huart, UART_MUTE_MODE_REQUEST);
-}
-
-/**
- * @brief Enables the UART transmitter and disables the UART receiver.
- * @param huart: UART handle
- * @retval HAL status
- * @retval None
- */
-HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart)
-{
- /* Process Locked */
- __HAL_LOCK(huart);
- huart->State = HAL_UART_STATE_BUSY;
-
- /* Clear TE and RE bits */
- CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE));
- /* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */
- SET_BIT(huart->Instance->CR1, USART_CR1_TE);
-
- huart->State = HAL_UART_STATE_READY;
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_OK;
-}
-
-/**
- * @brief Enables the UART receiver and disables the UART transmitter.
- * @param huart: UART handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart)
-{
- /* Process Locked */
- __HAL_LOCK(huart);
- huart->State = HAL_UART_STATE_BUSY;
-
- /* Clear TE and RE bits */
- CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE));
- /* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */
- SET_BIT(huart->Instance->CR1, USART_CR1_RE);
-
- huart->State = HAL_UART_STATE_READY;
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_OK;
-}
-
-/**
- * @}
- */
-
-/** @defgroup UART_Exported_Functions_Group4 Peripheral State and Errors functions
- * @{
- */
-
-/**
- * @brief return the UART state
- * @param huart: uart handle
- * @retval HAL state
- */
-HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
-{
- return huart->State;
-}
-
-/**
-* @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;
-}
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/** @defgroup UART_Private_Functions UART Private Functions
- * @{
- */
-
-/**
- * @brief Send an amount of data in interrupt mode
- * Function called under interruption only, once
- * interruptions have been enabled by HAL_UART_Transmit_IT()
- * @param huart: UART handle
- * @retval HAL status
- */
-HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
-{
- uint16_t* tmp;
-
- if ((huart->State == HAL_UART_STATE_BUSY_TX) || (huart->State == HAL_UART_STATE_BUSY_TX_RX))
- {
-
- if(huart->TxXferCount == 0)
- {
- /* Disable the UART Transmit Data Register Empty 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
- {
- if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
- {
- tmp = (uint16_t*) huart->pTxBuffPtr;
- huart->Instance->TDR = (*tmp & (uint16_t)0x01FF);
- huart->pTxBuffPtr += 2;
- }
- else
- {
- huart->Instance->TDR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0xFF);
- }
-
- huart->TxXferCount--;
-
- return HAL_OK;
- }
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Receive an amount of data in interrupt mode
- * Function called under interruption only, once
- * interruptions have been enabled by HAL_UART_Receive_IT()
- * @param huart: UART handle
- * @retval HAL status
- */
-HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart)
-{
- uint16_t* tmp;
- uint16_t uhMask = huart->Mask;
-
- if((huart->State == HAL_UART_STATE_BUSY_RX) || (huart->State == HAL_UART_STATE_BUSY_TX_RX))
- {
-
- if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE))
- {
- tmp = (uint16_t*) huart->pRxBuffPtr ;
- *tmp = (uint16_t)(huart->Instance->RDR & uhMask);
- huart->pRxBuffPtr +=2;
- }
- else
- {
- *huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask);
- }
-
- if(--huart->RxXferCount == 0)
- {
- __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
-
- /* Check if a transmit Process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
- {
- huart->State = HAL_UART_STATE_BUSY_TX;
- }
- else
- {
- /* 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);
-
- huart->State = HAL_UART_STATE_READY;
- }
-
- HAL_UART_RxCpltCallback(huart);
-
- return HAL_OK;
- }
-
- return HAL_OK;
- }
- else
- {
- return HAL_BUSY;
- }
-}
-
-/**
- * @brief Check the UART Idle State
- * @param huart: uart handle
- * @retval HAL status
- */
-HAL_StatusTypeDef UART_CheckIdleState(UART_HandleTypeDef *huart)
-{
- /* Initialize the UART ErrorCode */
- huart->ErrorCode = HAL_UART_ERROR_NONE;
-
- /* Check if the Transmitter is enabled */
- if((huart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE)
- {
- /* Wait until TEACK flag is set */
- if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_TEACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
- {
- /* Timeout Occured */
- return HAL_TIMEOUT;
- }
- }
- /* Check if the Receiver is enabled */
- if((huart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE)
- {
- /* Wait until REACK flag is set */
- if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK)
- {
- /* Timeout Occured */
- return HAL_TIMEOUT;
- }
- }
-
- /* Initialize the UART State */
- huart->State= HAL_UART_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_OK;
-}
-
-/**
- * @brief This function handles UART Communication Timeout.
- * @param huart: UART handle
- * @param Flag: specifies the UART flag to check.
- * @param Status: The new Flag status (SET or RESET).
- * @param Timeout: Timeout duration
- * @retval HAL status
- */
-HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
-{
- uint32_t tickstart = HAL_GetTick();
-
- /* Wait until flag is set */
- if(Status == RESET)
- {
- while(__HAL_UART_GET_FLAG(huart, 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 */
- __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
- __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
- __HAL_UART_DISABLE_IT(huart, UART_IT_PE);
- __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
-
- huart->State = HAL_UART_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_TIMEOUT;
- }
- }
- }
- }
- else
- {
- while(__HAL_UART_GET_FLAG(huart, 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 */
- __HAL_UART_DISABLE_IT(huart, UART_IT_TXE);
- __HAL_UART_DISABLE_IT(huart, UART_IT_RXNE);
- __HAL_UART_DISABLE_IT(huart, UART_IT_PE);
- __HAL_UART_DISABLE_IT(huart, UART_IT_ERR);
-
- huart->State = HAL_UART_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(huart);
-
- return HAL_TIMEOUT;
- }
- }
- }
- }
- return HAL_OK;
-}
-
-/**
- * @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;
- huart->TxXferCount = 0;
-
- /* Disable the DMA transfer for transmit request by setting the DMAT bit
- in the UART CR3 register */
- huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT);
-
- /* Wait for UART TC Flag */
- if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, HAL_UART_TXDMA_TIMEOUTVALUE) != HAL_OK)
- {
- /* Timeout Occured */
- huart->State = HAL_UART_STATE_TIMEOUT;
- HAL_UART_ErrorCallback(huart);
- }
- else
- {
- /* No Timeout */
- /* Check if a receive process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
- {
- huart->State = HAL_UART_STATE_BUSY_RX;
- }
- else
- {
- huart->State = HAL_UART_STATE_READY;
- }
- HAL_UART_TxCpltCallback(huart);
- }
-}
-
-/**
- * @brief DMA UART transmit process half complete callback
- * @param hdma : DMA handle
- * @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;
- huart->RxXferCount = 0;
-
- /* Disable the DMA transfer for the receiver request by setting the DMAR bit
- in the UART CR3 register */
- huart->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAR);
-
- /* Check if a transmit Process is ongoing or not */
- if(huart->State == HAL_UART_STATE_BUSY_TX_RX)
- {
- huart->State = HAL_UART_STATE_BUSY_TX;
- }
- else
- {
- huart->State = HAL_UART_STATE_READY;
- }
- HAL_UART_RxCpltCallback(huart);
-}
-
-/**
- * @brief DMA UART receive process half complete callback
- * @param hdma : DMA handle
- * @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)
-{
- UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
- huart->RxXferCount = 0;
- huart->TxXferCount = 0;
- huart->State= HAL_UART_STATE_READY;
- huart->ErrorCode |= HAL_UART_ERROR_DMA;
- HAL_UART_ErrorCallback(huart);
-}
-
-/**
- * @brief Configure the UART peripheral
- * @param huart: uart handle
- * @retval None
- */
-HAL_StatusTypeDef UART_SetConfig(UART_HandleTypeDef *huart)
-{
- uint32_t tmpreg = 0x00000000;
- UART_ClockSourceTypeDef clocksource = UART_CLOCKSOURCE_UNDEFINED;
- uint16_t brrtemp = 0x0000;
- uint16_t usartdiv = 0x0000;
- HAL_StatusTypeDef ret = HAL_OK;
-
- /* Check the parameters */
- assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate));
- assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength));
- assert_param(IS_UART_STOPBITS(huart->Init.StopBits));
- assert_param(IS_UART_PARITY(huart->Init.Parity));
- assert_param(IS_UART_MODE(huart->Init.Mode));
- assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl));
- assert_param(IS_UART_ONEBIT_SAMPLING(huart->Init.OneBitSampling));
-
-
- /*-------------------------- USART CR1 Configuration -----------------------*/
- /* Clear M, PCE, PS, TE, RE and OVER8 bits and configure
- * the UART Word Length, Parity, Mode and oversampling:
- * 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 */
- tmpreg = (uint32_t)huart->Init.WordLength | huart->Init.Parity | huart->Init.Mode | huart->Init.OverSampling ;
- MODIFY_REG(huart->Instance->CR1, UART_CR1_FIELDS, tmpreg);
-
- /*-------------------------- USART 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);
-
- /*-------------------------- USART CR3 Configuration -----------------------*/
- /* Configure
- * - UART HardWare Flow Control: set CTSE and RTSE bits according
- * to huart->Init.HwFlowCtl value
- * - one-bit sampling method versus three samples' majority rule according
- * to huart->Init.OneBitSampling */
- tmpreg = (uint32_t)huart->Init.HwFlowCtl | huart->Init.OneBitSampling ;
- MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE | USART_CR3_ONEBIT), tmpreg);
-
- /*-------------------------- USART BRR Configuration -----------------------*/
- __HAL_UART_GETCLOCKSOURCE(huart, clocksource);
-
- /* Check the Over Sampling to set Baud Rate Register */
- if (huart->Init.OverSampling == UART_OVERSAMPLING_8)
- {
- switch (clocksource)
- {
- case UART_CLOCKSOURCE_PCLK1:
- usartdiv = (uint16_t)(__DIV_SAMPLING8(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
- break;
- case UART_CLOCKSOURCE_HSI:
- usartdiv = (uint16_t)(__DIV_SAMPLING8(HSI_VALUE, huart->Init.BaudRate));
- break;
- case UART_CLOCKSOURCE_SYSCLK:
- usartdiv = (uint16_t)(__DIV_SAMPLING8(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
- break;
- case UART_CLOCKSOURCE_LSE:
- usartdiv = (uint16_t)(__DIV_SAMPLING8(LSE_VALUE, huart->Init.BaudRate));
- break;
- case UART_CLOCKSOURCE_UNDEFINED:
- default:
- ret = HAL_ERROR;
- break;
- }
-
- brrtemp = usartdiv & 0xFFF0;
- brrtemp |= (uint16_t) ((usartdiv & (uint16_t)0x000F) >> 1U);
- huart->Instance->BRR = brrtemp;
- }
- else
- {
- switch (clocksource)
- {
- case UART_CLOCKSOURCE_PCLK1:
- huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate));
- break;
- case UART_CLOCKSOURCE_HSI:
- huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HSI_VALUE, huart->Init.BaudRate));
- break;
- case UART_CLOCKSOURCE_SYSCLK:
- huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(HAL_RCC_GetSysClockFreq(), huart->Init.BaudRate));
- break;
- case UART_CLOCKSOURCE_LSE:
- huart->Instance->BRR = (uint16_t)(__DIV_SAMPLING16(LSE_VALUE, huart->Init.BaudRate));
- break;
- case UART_CLOCKSOURCE_UNDEFINED:
- default:
- ret = HAL_ERROR;
- break;
- }
- }
-
- return ret;
-
-}
-
-/**
- * @brief Configure the UART peripheral advanced feautures
- * @param huart: uart handle
- * @retval None
- */
-void UART_AdvFeatureConfig(UART_HandleTypeDef *huart)
-{
- /* Check whether the set of advanced features to configure is properly set */
- assert_param(IS_UART_ADVFEATURE_INIT(huart->AdvancedInit.AdvFeatureInit));
-
- /* if required, configure TX pin active level inversion */
- if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_TXINVERT_INIT))
- {
- assert_param(IS_UART_ADVFEATURE_TXINV(huart->AdvancedInit.TxPinLevelInvert));
- MODIFY_REG(huart->Instance->CR2, USART_CR2_TXINV, huart->AdvancedInit.TxPinLevelInvert);
- }
-
- /* if required, configure RX pin active level inversion */
- if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXINVERT_INIT))
- {
- assert_param(IS_UART_ADVFEATURE_RXINV(huart->AdvancedInit.RxPinLevelInvert));
- MODIFY_REG(huart->Instance->CR2, USART_CR2_RXINV, huart->AdvancedInit.RxPinLevelInvert);
- }
-
- /* if required, configure data inversion */
- if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DATAINVERT_INIT))
- {
- assert_param(IS_UART_ADVFEATURE_DATAINV(huart->AdvancedInit.DataInvert));
- MODIFY_REG(huart->Instance->CR2, USART_CR2_DATAINV, huart->AdvancedInit.DataInvert);
- }
-
- /* if required, configure RX/TX pins swap */
- if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_SWAP_INIT))
- {
- assert_param(IS_UART_ADVFEATURE_SWAP(huart->AdvancedInit.Swap));
- MODIFY_REG(huart->Instance->CR2, USART_CR2_SWAP, huart->AdvancedInit.Swap);
- }
-
- /* if required, configure RX overrun detection disabling */
- if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXOVERRUNDISABLE_INIT))
- {
- assert_param(IS_UART_OVERRUN(huart->AdvancedInit.OverrunDisable));
- MODIFY_REG(huart->Instance->CR3, USART_CR3_OVRDIS, huart->AdvancedInit.OverrunDisable);
- }
-
- /* if required, configure DMA disabling on reception error */
- if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DMADISABLEONERROR_INIT))
- {
- assert_param(IS_UART_ADVFEATURE_DMAONRXERROR(huart->AdvancedInit.DMADisableonRxError));
- MODIFY_REG(huart->Instance->CR3, USART_CR3_DDRE, huart->AdvancedInit.DMADisableonRxError);
- }
-
- /* if required, configure auto Baud rate detection scheme */
- if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_AUTOBAUDRATE_INIT))
- {
- assert_param(IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(huart->Instance));
- assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATE(huart->AdvancedInit.AutoBaudRateEnable));
- MODIFY_REG(huart->Instance->CR2, USART_CR2_ABREN, huart->AdvancedInit.AutoBaudRateEnable);
- /* set auto Baudrate detection parameters if detection is enabled */
- if (huart->AdvancedInit.AutoBaudRateEnable == UART_ADVFEATURE_AUTOBAUDRATE_ENABLE)
- {
- assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATEMODE(huart->AdvancedInit.AutoBaudRateMode));
- MODIFY_REG(huart->Instance->CR2, USART_CR2_ABRMODE, huart->AdvancedInit.AutoBaudRateMode);
- }
- }
-
- /* if required, configure MSB first on communication line */
- if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_MSBFIRST_INIT))
- {
- assert_param(IS_UART_ADVFEATURE_MSBFIRST(huart->AdvancedInit.MSBFirst));
- MODIFY_REG(huart->Instance->CR2, USART_CR2_MSBFIRST, huart->AdvancedInit.MSBFirst);
- }
-}
-
-/**
- * @}
- */
-
-#endif /* HAL_UART_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/