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Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_uart_ex.c')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_uart_ex.c | 708 |
1 files changed, 708 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_uart_ex.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_uart_ex.c new file mode 100644 index 0000000000..0a0121e984 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_uart_ex.c @@ -0,0 +1,708 @@ +/** + ****************************************************************************** + * @file stm32f0xx_hal_uart_ex.c + * @author MCD Application Team + * @version V1.2.0 + * @date 11-December-2014 + * @brief Extended UART HAL module driver. + * + * This file provides firmware functions to manage the following extended + * functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART). + * + Initialization and de-initialization functions + * + Peripheral Control functions + * + * + @verbatim + =============================================================================== + ##### How to use this driver ##### + =============================================================================== + [..] + The Extended UART HAL driver can be used as follows: + + (#) Declare a UART_HandleTypeDef handle structure. + + (#) For the UART RS485 Driver Enabled mode, initialize the UART registers + by calling the HAL_RS485Ex_Init() API. + + + @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 UARTEx UARTEx Extended HAL module driver + * @brief UART Extended HAL module driver + * @{ + */ + +#ifdef HAL_UART_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ + +/** @defgroup UARTEx_Private_Functions UARTEx Private Functions + * @{ + */ +#if !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) +static void UART_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection); +#endif /* !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) */ +static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart); + +/** + * @} + */ + +/* Exported functions ---------------------------------------------------------*/ + +/** @defgroup UARTEx_Exported_Functions UARTEx Exported Functions + * @{ + */ + +/** @defgroup UARTEx_Exported_Functions_Group1 Extended Initialization/de-initialization functions + * @brief Extended 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 (Fixed to 8-bits only for LIN mode) + (++) 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_LIN_Init() and HAL_RS485Ex_Init() APIs follows respectively the LIN and + the UART RS485 mode configuration procedures (details for the procedures are + available in reference manual). + +@endverbatim + * @{ + */ + +#if !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) +/** + * @brief Initializes the RS485 Driver enable feature according to the specified + * parameters in the UART_InitTypeDef and creates the associated handle . + * @param huart: uart handle + * @param UART_DEPolarity: select the driver enable polarity + * This parameter can be one of the following values: + * @arg UART_DE_POLARITY_HIGH: DE signal is active high + * @arg UART_DE_POLARITY_LOW: DE signal is active low + * @param UART_DEAssertionTime: Driver Enable assertion time + * 5-bit value defining the time between the activation of the DE (Driver Enable) + * signal and the beginning of the start bit. It is expressed in sample time + * units (1/8 or 1/16 bit time, depending on the oversampling rate) + * @param UART_DEDeassertionTime: Driver Enable deassertion time + * 5-bit value defining the time between the end of the last stop bit, in a + * transmitted message, and the de-activation of the DE (Driver Enable) signal. + * It is expressed in sample time units (1/8 or 1/16 bit time, depending on the + * oversampling rate). + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RS485Ex_Init(UART_HandleTypeDef *huart, uint32_t UART_DEPolarity, uint32_t UART_DEAssertionTime, uint32_t UART_DEDeassertionTime) +{ + uint32_t temp = 0x0; + + /* Check the UART handle allocation */ + if(huart == NULL) + { + return HAL_ERROR; + } + /* Check the Driver Enable UART instance */ + assert_param(IS_UART_DRIVER_ENABLE_INSTANCE(huart->Instance)); + + /* Check the Driver Enable polarity */ + assert_param(IS_UART_DE_POLARITY(UART_DEPolarity)); + + /* Check the Driver Enable assertion time */ + assert_param(IS_UART_ASSERTIONTIME(UART_DEAssertionTime)); + + /* Check the Driver Enable deassertion time */ + assert_param(IS_UART_DEASSERTIONTIME(UART_DEDeassertionTime)); + + 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); + } + + /* Enable the Driver Enable mode by setting the DEM bit in the CR3 register */ + huart->Instance->CR3 |= USART_CR3_DEM; + + /* Set the Driver Enable polarity */ + MODIFY_REG(huart->Instance->CR3, USART_CR3_DEP, UART_DEPolarity); + + /* Set the Driver Enable assertion and deassertion times */ + temp = (UART_DEAssertionTime << UART_CR1_DEAT_ADDRESS_LSB_POS); + temp |= (UART_DEDeassertionTime << UART_CR1_DEDT_ADDRESS_LSB_POS); + MODIFY_REG(huart->Instance->CR1, (USART_CR1_DEDT|USART_CR1_DEAT), temp); + + /* Enable the Peripheral */ + __HAL_UART_ENABLE(huart); + + /* TEACK and/or REACK to check before moving huart->State to Ready */ + return (UART_CheckIdleState(huart)); +} +#endif /* !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC)*/ + +#if !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) +/** + * @brief Initializes the LIN mode according to the specified + * parameters in the UART_InitTypeDef and creates the associated handle. + * @param huart: uart handle + * @param BreakDetectLength: specifies the LIN break detection length. + * This parameter can be one of the following values: + * @arg UART_LINBREAKDETECTLENGTH_10B: 10-bit break detection + * @arg UART_LINBREAKDETECTLENGTH_11B: 11-bit break detection + * @retval HAL status + */ +HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength) +{ + /* Check the UART handle allocation */ + if(huart == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + assert_param(IS_UART_LIN_INSTANCE(huart->Instance)); + assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength)); + + /* LIN mode limited to 16-bit oversampling only */ + if(huart->Init.OverSampling == UART_OVERSAMPLING_8) + { + return HAL_ERROR; + } + + /* in LIN mode, data length is limited to 8-bit only */ + if(huart->Init.WordLength!= UART_WORDLENGTH_8B) + { + return HAL_ERROR; + } + + /* Init the low level hardware : GPIO, CLOCK, CORTEX */ + HAL_UART_MspInit(huart); + + /* 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 LIN 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_CLKEN); + huart->Instance->CR3 &= ~(USART_CR3_HDSEL | USART_CR3_IREN | USART_CR3_SCEN); + + /* Enable the LIN mode by setting the LINEN bit in the CR2 register */ + huart->Instance->CR2 |= USART_CR2_LINEN; + + /* Set the USART LIN Break detection length. */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength); + + /* Enable the Peripheral */ + __HAL_UART_ENABLE(huart); + + /* TEACK and/or REACK to check before moving huart->State to Ready */ + return (UART_CheckIdleState(huart)); +} +#endif /* !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) */ +/** + * @} + */ + +/** @defgroup UARTEx_Exported_Functions_Group2 Extended IO operation function + * @brief Extended UART Interrupt handling function + * +@verbatim + =============================================================================== + ##### IO operation function ##### + =============================================================================== + [..] + This subsection provides functions allowing to manage the UART interrupts + and to handle Wake up interrupt call-back. + + (#) Non-Blocking mode API with Interrupt is : + (++) HAL_UART_IRQHandler() + + (#) Callback provided in No_Blocking mode: + (++) HAL_UART_WakeupCallback() + +@endverbatim + * @{ + */ + + +/** + * @brief This function handles UART interrupt request. + * @param huart: uart handle + * @retval None + */ +void HAL_UART_IRQHandler(UART_HandleTypeDef *huart) +{ + /* UART parity error interrupt occurred -------------------------------------*/ + if((__HAL_UART_GET_IT(huart, UART_IT_PE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_PE) != RESET)) + { + __HAL_UART_CLEAR_IT(huart, UART_CLEAR_PEF); + + huart->ErrorCode |= HAL_UART_ERROR_PE; + /* Set the UART state ready to be able to start again the process */ + huart->State = HAL_UART_STATE_READY; + } + + /* UART frame error interrupt occured --------------------------------------*/ + if((__HAL_UART_GET_IT(huart, UART_IT_FE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET)) + { + __HAL_UART_CLEAR_IT(huart, UART_CLEAR_FEF); + + huart->ErrorCode |= HAL_UART_ERROR_FE; + /* Set the UART state ready to be able to start again the process */ + huart->State = HAL_UART_STATE_READY; + } + + /* UART noise error interrupt occured --------------------------------------*/ + if((__HAL_UART_GET_IT(huart, UART_IT_NE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET)) + { + __HAL_UART_CLEAR_IT(huart, UART_CLEAR_NEF); + + huart->ErrorCode |= HAL_UART_ERROR_NE; + /* Set the UART state ready to be able to start again the process */ + huart->State = HAL_UART_STATE_READY; + } + + /* UART Over-Run interrupt occured -----------------------------------------*/ + if((__HAL_UART_GET_IT(huart, UART_IT_ORE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR) != RESET)) + { + __HAL_UART_CLEAR_IT(huart, UART_CLEAR_OREF); + + huart->ErrorCode |= HAL_UART_ERROR_ORE; + /* Set the UART state ready to be able to start again the process */ + huart->State = HAL_UART_STATE_READY; + } + + /* Call UART Error Call back function if need be --------------------------*/ + if(huart->ErrorCode != HAL_UART_ERROR_NONE) + { + HAL_UART_ErrorCallback(huart); + } + +#if !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) + /* UART wakeup from Stop mode interrupt occurred -------------------------------------*/ + if((__HAL_UART_GET_IT(huart, UART_IT_WUF) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_WUF) != RESET)) + { + __HAL_UART_CLEAR_IT(huart, UART_CLEAR_WUF); + /* Set the UART state ready to be able to start again the process */ + huart->State = HAL_UART_STATE_READY; + HAL_UART_WakeupCallback(huart); + } +#endif /* !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) */ + + /* UART in mode Receiver ---------------------------------------------------*/ + if((__HAL_UART_GET_IT(huart, UART_IT_RXNE) != RESET) && (__HAL_UART_GET_IT_SOURCE(huart, UART_IT_RXNE) != RESET)) + { + UART_Receive_IT(huart); + /* Clear RXNE interrupt flag */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + } + + + /* UART in mode Transmitter ------------------------------------------------*/ + if((__HAL_UART_GET_IT(huart, UART_IT_TXE) != RESET) &&(__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TXE) != RESET)) + { + UART_Transmit_IT(huart); + } + + /* UART in mode Transmitter ------------------------------------------------*/ + if((__HAL_UART_GET_IT(huart, UART_IT_TC) != RESET) &&(__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TC) != RESET)) + { + UART_EndTransmit_IT(huart); + } +} + +#if !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) +/** + * @brief UART wakeup from Stop mode callback + * @param huart: uart handle + * @retval None + */ + __weak void HAL_UART_WakeupCallback(UART_HandleTypeDef *huart) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UART_WakeupCallback can be implemented in the user file + */ +} +#endif /*!defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC)*/ + +/** + * @} + */ + + +/** @defgroup UARTEx_Exported_Functions_Group3 Extended Peripheral Control functions + * @brief Extended Peripheral Control functions + * +@verbatim + =============================================================================== + ##### Peripheral Control function ##### + =============================================================================== + [..] + This subsection provides extended functions allowing to control the UART. + (+) HAL_MultiProcessorEx_AddressLength_Set() API optionally sets the UART node address + detection length to more than 4 bits for multiprocessor address mark wake up. + (+) HAL_UARTEx_StopModeWakeUpSourceConfig() API sets Wakeup from Stop mode interrupt flag selection + (+) HAL_UARTEx_EnableStopMode() API allows the UART to wake up the MCU from Stop mode as + long as UART clock is HSI or LSE + (+) HAL_UARTEx_DisableStopMode() API disables the above feature + (+) HAL_LIN_SendBreak() API transmits the break characters + +@endverbatim + * @{ + */ + +#if !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) +/** + * @brief Set Wakeup from Stop mode interrupt flag selection + * @param huart: uart handle, + * @param WakeUpSelection: address match, Start Bit detection or RXNE bit status. + * This parameter can be one of the following values: + * @arg UART_WAKEUP_ON_ADDRESS + * @arg UART_WAKEUP_ON_STARTBIT + * @arg UART_WAKEUP_ON_READDATA_NONEMPTY + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UARTEx_StopModeWakeUpSourceConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection) +{ + /* Check parameters */ + assert_param(IS_UART_WAKEUP_INSTANCE(huart->Instance)); + assert_param(IS_UART_WAKEUP_SELECTION(WakeUpSelection.WakeUpEvent)); + + /* Process Locked */ + __HAL_LOCK(huart); + + huart->State = HAL_UART_STATE_BUSY; + + /* Disable the Peripheral */ + __HAL_UART_DISABLE(huart); + + /* Set the wake-up selection scheme */ + MODIFY_REG(huart->Instance->CR3, USART_CR3_WUS, WakeUpSelection.WakeUpEvent); + + if (WakeUpSelection.WakeUpEvent == UART_WAKEUP_ON_ADDRESS) + { + UART_Wakeup_AddressConfig(huart, WakeUpSelection); + } + + /* Enable the Peripheral */ + __HAL_UART_ENABLE(huart); + + /* Wait until REACK flag is set */ + if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, HAL_UART_TIMEOUT_VALUE) != HAL_OK) + { + return HAL_TIMEOUT; + } + else + { + /* Initialize the UART State */ + huart->State= HAL_UART_STATE_READY; + /* Process Unlocked */ + __HAL_UNLOCK(huart); + return HAL_OK; + } +} + +/** + * @brief Enable UART Stop Mode + * The UART is able to wake up the MCU from Stop mode as long as UART clock is HSI or LSE + * @param huart: uart handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UARTEx_EnableStopMode(UART_HandleTypeDef *huart) +{ + /* Check parameter */ + assert_param(IS_UART_WAKEUP_INSTANCE(huart->Instance)); + + /* Process Locked */ + __HAL_LOCK(huart); + + huart->State = HAL_UART_STATE_BUSY; + + /* Set the USART UESM bit */ + huart->Instance->CR1 |= USART_CR1_UESM; + + huart->State = HAL_UART_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @brief Disable UART Stop Mode + * @param huart: uart handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UARTEx_DisableStopMode(UART_HandleTypeDef *huart) +{ + /* Check parameter */ + assert_param(IS_UART_WAKEUP_INSTANCE(huart->Instance)); + + /* Process Locked */ + __HAL_LOCK(huart); + + huart->State = HAL_UART_STATE_BUSY; + + /* Clear USART UESM bit */ + huart->Instance->CR1 &= ~(USART_CR1_UESM); + + huart->State = HAL_UART_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +#endif /* !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) */ + +/** + * @brief By default in multiprocessor mode, when the wake up method is set + * to address mark, the UART handles only 4-bit long addresses detection. + * This API allows to enable longer addresses detection (6-, 7- or 8-bit + * long): + * - 6-bit address detection in 7-bit data mode + * - 7-bit address detection in 8-bit data mode + * - 8-bit address detection in 9-bit data mode + * @param huart: UART handle + * @param AddressLength: this parameter can be one of the following values: + * @arg UART_ADDRESS_DETECT_4B: 4-bit long address + * @arg UART_ADDRESS_DETECT_7B: 6-, 7- or 8-bit long address + * @retval HAL status + */ +HAL_StatusTypeDef HAL_MultiProcessorEx_AddressLength_Set(UART_HandleTypeDef *huart, uint32_t AddressLength) +{ + /* Check the UART handle allocation */ + if(huart == NULL) + { + return HAL_ERROR; + } + + /* Check the address length parameter */ + assert_param(IS_UART_ADDRESSLENGTH_DETECT(AddressLength)); + + huart->State = HAL_UART_STATE_BUSY; + + /* Disable the Peripheral */ + __HAL_UART_DISABLE(huart); + + /* Set the address length */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, AddressLength); + + /* Enable the Peripheral */ + __HAL_UART_ENABLE(huart); + + /* TEACK and/or REACK to check before moving huart->State to Ready */ + return (UART_CheckIdleState(huart)); +} + + +#if !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) +/** + * @brief Transmits break characters. + * @param huart: UART handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart) +{ + /* Check the parameters */ + assert_param(IS_UART_INSTANCE(huart->Instance)); + + /* Process Locked */ + __HAL_LOCK(huart); + + huart->State = HAL_UART_STATE_BUSY; + + /* Send break characters */ + huart->Instance->RQR |= UART_SENDBREAK_REQUEST; + + huart->State = HAL_UART_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +#endif /* !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) */ + +/** + * @} + */ + +/** + * @} + */ + +/** @addtogroup UARTEx_Private_Functions + * @{ + */ + +/** + * @brief Wraps up transmission in non blocking mode. + * @param huart: pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart) +{ + /* Disable the UART Transmit Complete Interrupt */ + __HAL_UART_DISABLE_IT(huart, UART_IT_TC); + + /* 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 + { + /* 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_TxCpltCallback(huart); + + return HAL_OK; +} + +#if !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) +/** + * @brief Initializes the UART wake-up from stop mode parameters when triggered by address detection. + * @param huart: uart handle + * @param WakeUpSelection: UART wake up from stop mode parameters + * @retval HAL status + */ +static void UART_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection) +{ + /* Check parmeters */ + assert_param(IS_UART_WAKEUP_INSTANCE(huart->Instance)); + assert_param(IS_UART_ADDRESSLENGTH_DETECT(WakeUpSelection.AddressLength)); + + /* Set the USART address length */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, WakeUpSelection.AddressLength); + + /* Set the USART address node */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)WakeUpSelection.Address << UART_CR2_ADDRESS_LSB_POS)); +} +#endif /* !defined(STM32F030x6) && !defined(STM32F030x8)&& !defined(STM32F070xB)&& !defined(STM32F070x6)&& !defined(STM32F030xC) */ + +/** + * @} + */ + +#endif /* HAL_UART_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |