From 037d84bed61fb93a5292d0194bbf734fd2927378 Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Sat, 13 May 2017 10:48:31 +0200 Subject: wip --- .../STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h | 751 ++++++++ .../STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c | 1921 ++++++++++++++++++++ 2 files changed, 2672 insertions(+) create mode 100644 stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h create mode 100644 stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c (limited to 'stm32cubemx/Drivers/STM32F1xx_HAL_Driver') diff --git a/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h b/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h new file mode 100644 index 0000000..976756c --- /dev/null +++ b/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_uart.h @@ -0,0 +1,751 @@ +/** + ****************************************************************************** + * @file stm32f1xx_hal_uart.h + * @author MCD Application Team + * @version V1.0.4 + * @date 29-April-2016 + * @brief Header file of UART HAL module. + ****************************************************************************** + * @attention + * + *

© COPYRIGHT(c) 2016 STMicroelectronics

+ * + * 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. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F1xx_HAL_UART_H +#define __STM32F1xx_HAL_UART_H + +#ifdef __cplusplus + extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f1xx_hal_def.h" + +/** @addtogroup STM32F1xx_HAL_Driver + * @{ + */ + +/** @addtogroup UART + * @{ + */ + +/* Exported types ------------------------------------------------------------*/ +/** @defgroup UART_Exported_Types UART Exported Types + * @{ + */ + + +/** + * @brief UART Init Structure definition + */ +typedef struct +{ + uint32_t BaudRate; /*!< This member configures the UART communication baud rate. + The baud rate is computed using the following formula: + - IntegerDivider = ((PCLKx) / (16 * (huart->Init.BaudRate))) + - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 16) + 0.5 */ + + uint32_t WordLength; /*!< Specifies the number of data bits transmitted or received in a frame. + This parameter can be a value of @ref UART_Word_Length */ + + uint32_t StopBits; /*!< Specifies the number of stop bits transmitted. + This parameter can be a value of @ref UART_Stop_Bits */ + + uint32_t Parity; /*!< Specifies the parity mode. + This parameter can be a value of @ref UART_Parity + @note When parity is enabled, the computed parity is inserted + at the MSB position of the transmitted data (9th bit when + the word length is set to 9 data bits; 8th bit when the + word length is set to 8 data bits). */ + + uint32_t Mode; /*!< Specifies wether the Receive or Transmit mode is enabled or disabled. + This parameter can be a value of @ref UART_Mode */ + + uint32_t HwFlowCtl; /*!< Specifies wether the hardware flow control mode is enabled + or disabled. + This parameter can be a value of @ref UART_Hardware_Flow_Control */ + + uint32_t OverSampling; /*!< Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher speed (up to fPCLK/8). + This parameter can be a value of @ref UART_Over_Sampling. This feature is not available + on STM32F1xx family, so OverSampling parameter should always be set to 16. */ +}UART_InitTypeDef; + +/** + * @brief HAL UART State structures definition + */ +typedef enum +{ + HAL_UART_STATE_RESET = 0x00, /*!< Peripheral is not initialized */ + HAL_UART_STATE_READY = 0x01, /*!< Peripheral Initialized and ready for use */ + HAL_UART_STATE_BUSY = 0x02, /*!< an internal process is ongoing */ + HAL_UART_STATE_BUSY_TX = 0x12, /*!< Data Transmission process is ongoing */ + HAL_UART_STATE_BUSY_RX = 0x22, /*!< Data Reception process is ongoing */ + HAL_UART_STATE_BUSY_TX_RX = 0x32, /*!< Data Transmission and Reception process is ongoing */ + HAL_UART_STATE_TIMEOUT = 0x03, /*!< Timeout state */ + HAL_UART_STATE_ERROR = 0x04 /*!< Error */ +}HAL_UART_StateTypeDef; + + +/** + * @brief UART handle Structure definition + */ +typedef struct +{ + USART_TypeDef *Instance; /*!< UART registers base address */ + + UART_InitTypeDef Init; /*!< UART communication parameters */ + + uint8_t *pTxBuffPtr; /*!< Pointer to UART Tx transfer Buffer */ + + uint16_t TxXferSize; /*!< UART Tx Transfer size */ + + uint16_t TxXferCount; /*!< UART Tx Transfer Counter */ + + uint8_t *pRxBuffPtr; /*!< Pointer to UART Rx transfer Buffer */ + + uint16_t RxXferSize; /*!< UART Rx Transfer size */ + + uint16_t RxXferCount; /*!< UART Rx Transfer Counter */ + + DMA_HandleTypeDef *hdmatx; /*!< UART Tx DMA Handle parameters */ + + DMA_HandleTypeDef *hdmarx; /*!< UART Rx DMA Handle parameters */ + + HAL_LockTypeDef Lock; /*!< Locking object */ + + __IO HAL_UART_StateTypeDef State; /*!< UART communication state */ + + __IO uint32_t ErrorCode; /*!< UART Error code */ + +}UART_HandleTypeDef; + +/** + * @} + */ + +/* Exported constants --------------------------------------------------------*/ +/** @defgroup UART_Exported_Constants UART Exported constants + * @{ + */ + +/** @defgroup UART_Error_Codes UART Error Codes + * @{ + */ + +#define HAL_UART_ERROR_NONE ((uint32_t)0x00) /*!< No error */ +#define HAL_UART_ERROR_PE ((uint32_t)0x01) /*!< Parity error */ +#define HAL_UART_ERROR_NE ((uint32_t)0x02) /*!< Noise error */ +#define HAL_UART_ERROR_FE ((uint32_t)0x04) /*!< frame error */ +#define HAL_UART_ERROR_ORE ((uint32_t)0x08) /*!< Overrun error */ +#define HAL_UART_ERROR_DMA ((uint32_t)0x10) /*!< DMA transfer error */ + +/** + * @} + */ + + + + +/** @defgroup UART_Word_Length UART Word Length + * @{ + */ +#define UART_WORDLENGTH_8B ((uint32_t)0x00000000) +#define UART_WORDLENGTH_9B ((uint32_t)USART_CR1_M) +/** + * @} + */ + +/** @defgroup UART_Stop_Bits UART Number of Stop Bits + * @{ + */ +#define UART_STOPBITS_1 ((uint32_t)0x00000000) +#define UART_STOPBITS_2 ((uint32_t)USART_CR2_STOP_1) +/** + * @} + */ + +/** @defgroup UART_Parity UART Parity + * @{ + */ +#define UART_PARITY_NONE ((uint32_t)0x00000000) +#define UART_PARITY_EVEN ((uint32_t)USART_CR1_PCE) +#define UART_PARITY_ODD ((uint32_t)(USART_CR1_PCE | USART_CR1_PS)) +/** + * @} + */ + +/** @defgroup UART_Hardware_Flow_Control UART Hardware Flow Control + * @{ + */ +#define UART_HWCONTROL_NONE ((uint32_t)0x00000000) +#define UART_HWCONTROL_RTS ((uint32_t)USART_CR3_RTSE) +#define UART_HWCONTROL_CTS ((uint32_t)USART_CR3_CTSE) +#define UART_HWCONTROL_RTS_CTS ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE)) +/** + * @} + */ + +/** @defgroup UART_Mode UART Transfer Mode + * @{ + */ +#define UART_MODE_RX ((uint32_t)USART_CR1_RE) +#define UART_MODE_TX ((uint32_t)USART_CR1_TE) +#define UART_MODE_TX_RX ((uint32_t)(USART_CR1_TE |USART_CR1_RE)) + +/** + * @} + */ + + /** @defgroup UART_State UART State + * @{ + */ +#define UART_STATE_DISABLE ((uint32_t)0x00000000) +#define UART_STATE_ENABLE ((uint32_t)USART_CR1_UE) +/** + * @} + */ + +/** @defgroup UART_Over_Sampling UART Over Sampling + * @{ + */ +#define UART_OVERSAMPLING_16 ((uint32_t)0x00000000) +/** + * @} + */ + +/** @defgroup UART_LIN_Break_Detection_Length UART LIN Break Detection Length + * @{ + */ +#define UART_LINBREAKDETECTLENGTH_10B ((uint32_t)0x00000000) +#define UART_LINBREAKDETECTLENGTH_11B ((uint32_t)USART_CR2_LBDL) +/** + * @} + */ + +/** @defgroup UART_WakeUp_functions UART Wakeup Functions + * @{ + */ +#define UART_WAKEUPMETHOD_IDLELINE ((uint32_t)0x00000000) +#define UART_WAKEUPMETHOD_ADDRESSMARK ((uint32_t)USART_CR1_WAKE) +/** + * @} + */ + +/** @defgroup UART_Flags UART FLags + * Elements values convention: 0xXXXX + * - 0xXXXX : Flag mask in the SR register + * @{ + */ +#define UART_FLAG_CTS ((uint32_t)USART_SR_CTS) +#define UART_FLAG_LBD ((uint32_t)USART_SR_LBD) +#define UART_FLAG_TXE ((uint32_t)USART_SR_TXE) +#define UART_FLAG_TC ((uint32_t)USART_SR_TC) +#define UART_FLAG_RXNE ((uint32_t)USART_SR_RXNE) +#define UART_FLAG_IDLE ((uint32_t)USART_SR_IDLE) +#define UART_FLAG_ORE ((uint32_t)USART_SR_ORE) +#define UART_FLAG_NE ((uint32_t)USART_SR_NE) +#define UART_FLAG_FE ((uint32_t)USART_SR_FE) +#define UART_FLAG_PE ((uint32_t)USART_SR_PE) +/** + * @} + */ + +/** @defgroup UART_Interrupt_definition UART Interrupt Definitions + * Elements values convention: 0xY000XXXX + * - XXXX : Interrupt mask (16 bits) in the Y register + * - Y : Interrupt source register (2bits) + * - 0001: CR1 register + * - 0010: CR2 register + * - 0011: CR3 register + * + * @{ + */ + +#define UART_IT_PE ((uint32_t)(UART_CR1_REG_INDEX << 28 | USART_CR1_PEIE)) +#define UART_IT_TXE ((uint32_t)(UART_CR1_REG_INDEX << 28 | USART_CR1_TXEIE)) +#define UART_IT_TC ((uint32_t)(UART_CR1_REG_INDEX << 28 | USART_CR1_TCIE)) +#define UART_IT_RXNE ((uint32_t)(UART_CR1_REG_INDEX << 28 | USART_CR1_RXNEIE)) +#define UART_IT_IDLE ((uint32_t)(UART_CR1_REG_INDEX << 28 | USART_CR1_IDLEIE)) + +#define UART_IT_LBD ((uint32_t)(UART_CR2_REG_INDEX << 28 | USART_CR2_LBDIE)) + +#define UART_IT_CTS ((uint32_t)(UART_CR3_REG_INDEX << 28 | USART_CR3_CTSIE)) +#define UART_IT_ERR ((uint32_t)(UART_CR3_REG_INDEX << 28 | USART_CR3_EIE)) + +/** + * @} + */ + +/** + * @} + */ + + +/* Exported macro ------------------------------------------------------------*/ +/** @defgroup UART_Exported_Macros UART Exported Macros + * @{ + */ + + +/** @brief Reset UART handle state + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @retval None + */ +#define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_UART_STATE_RESET) + +/** @brief Flush the UART DR register + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + */ +#define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR) + +/** @brief Check whether the specified UART flag is set or not. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @param __FLAG__: specifies the flag to check. + * This parameter can be one of the following values: + * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5) + * @arg UART_FLAG_LBD: LIN Break detection flag + * @arg UART_FLAG_TXE: Transmit data register empty flag + * @arg UART_FLAG_TC: Transmission Complete flag + * @arg UART_FLAG_RXNE: Receive data register not empty flag + * @arg UART_FLAG_IDLE: Idle Line detection flag + * @arg UART_FLAG_ORE: OverRun Error flag + * @arg UART_FLAG_NE: Noise Error flag + * @arg UART_FLAG_FE: Framing Error flag + * @arg UART_FLAG_PE: Parity Error flag + * @retval The new state of __FLAG__ (TRUE or FALSE). + */ +#define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__)) + +/** @brief Clear the specified UART pending flag. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @param __FLAG__: specifies the flag to check. + * This parameter can be any combination of the following values: + * @arg UART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5). + * @arg UART_FLAG_LBD: LIN Break detection flag. + * @arg UART_FLAG_TC: Transmission Complete flag. + * @arg UART_FLAG_RXNE: Receive data register not empty flag. + * + * @note PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun + * error) and IDLE (Idle line detected) flags are cleared by software + * sequence: a read operation to USART_SR register followed by a read + * operation to USART_DR register. + * @note RXNE flag can be also cleared by a read to the USART_DR register. + * @note TC flag can be also cleared by software sequence: a read operation to + * USART_SR register followed by a write operation to USART_DR register. + * @note TXE flag is cleared only by a write to the USART_DR register. + * + * @retval None + */ +#define __HAL_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__)) + +/** @brief Clear the UART PE pending flag. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @retval None + */ +#define __HAL_UART_CLEAR_PEFLAG(__HANDLE__) \ +do{ \ + __IO uint32_t tmpreg; \ + tmpreg = (__HANDLE__)->Instance->SR; \ + tmpreg = (__HANDLE__)->Instance->DR; \ + UNUSED(tmpreg); \ +}while(0) + + + +/** @brief Clear the UART FE pending flag. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @retval None + */ +#define __HAL_UART_CLEAR_FEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) + +/** @brief Clear the UART NE pending flag. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @retval None + */ +#define __HAL_UART_CLEAR_NEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) + +/** @brief Clear the UART ORE pending flag. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @retval None + */ +#define __HAL_UART_CLEAR_OREFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) + +/** @brief Clear the UART IDLE pending flag. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @retval None + */ +#define __HAL_UART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__) + +/** @brief Enable the specified UART interrupt. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @param __INTERRUPT__: specifies the UART interrupt source to enable. + * This parameter can be one of the following values: + * @arg UART_IT_CTS: CTS change interrupt + * @arg UART_IT_LBD: LIN Break detection interrupt + * @arg UART_IT_TXE: Transmit Data Register empty interrupt + * @arg UART_IT_TC: Transmission complete interrupt + * @arg UART_IT_RXNE: Receive Data register not empty interrupt + * @arg UART_IT_IDLE: Idle line detection interrupt + * @arg UART_IT_PE: Parity Error interrupt + * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) + * @retval None + */ +#define __HAL_UART_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & UART_IT_MASK)): \ + (((__INTERRUPT__) >> 28) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 |= ((__INTERRUPT__) & UART_IT_MASK)): \ + ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & UART_IT_MASK))) + + +/** @brief Disable the specified UART interrupt. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @param __INTERRUPT__: specifies the UART interrupt source to disable. + * This parameter can be one of the following values: + * @arg UART_IT_CTS: CTS change interrupt + * @arg UART_IT_LBD: LIN Break detection interrupt + * @arg UART_IT_TXE: Transmit Data Register empty interrupt + * @arg UART_IT_TC: Transmission complete interrupt + * @arg UART_IT_RXNE: Receive Data register not empty interrupt + * @arg UART_IT_IDLE: Idle line detection interrupt + * @arg UART_IT_PE: Parity Error interrupt + * @arg UART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) + * @retval None + */ +#define __HAL_UART_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((((__INTERRUPT__) >> 28) == UART_CR1_REG_INDEX)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & UART_IT_MASK)): \ + (((__INTERRUPT__) >> 28) == UART_CR2_REG_INDEX)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & UART_IT_MASK)): \ + ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK))) + +/** @brief Check whether the specified UART interrupt has occurred or not. + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @param __IT__: specifies the UART interrupt source to check. + * This parameter can be one of the following values: + * @arg UART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) + * @arg UART_IT_LBD: LIN Break detection interrupt + * @arg UART_IT_TXE: Transmit Data Register empty interrupt + * @arg UART_IT_TC: Transmission complete interrupt + * @arg UART_IT_RXNE: Receive Data register not empty interrupt + * @arg UART_IT_IDLE: Idle line detection interrupt + * @arg UART_IT_ERR: Error interrupt + * @retval The new state of __IT__ (TRUE or FALSE). + */ +#define __HAL_UART_GET_IT_SOURCE(__HANDLE__, __IT__) (((((__IT__) >> 28) == UART_CR1_REG_INDEX)? (__HANDLE__)->Instance->CR1:(((((uint32_t)(__IT__)) >> 28) == UART_CR2_REG_INDEX)? \ + (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & UART_IT_MASK)) + +/** @brief Enable CTS flow control + * This macro allows to enable CTS hardware flow control for a given UART instance, + * without need to call HAL_UART_Init() function. + * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. + * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need + * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : + * - UART instance should have already been initialised (through call of HAL_UART_Init() ) + * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) + * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). + * @param __HANDLE__: specifies the UART Handle. + * This parameter can be any USARTx (supporting the HW Flow control feature). + * It is used to select the USART peripheral (USART availability and x value depending on device). + * @retval None + */ +#define __HAL_UART_HWCONTROL_CTS_ENABLE(__HANDLE__) \ + do{ \ + SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ + (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_CTSE; \ + } while(0) + +/** @brief Disable CTS flow control + * This macro allows to disable CTS hardware flow control for a given UART instance, + * without need to call HAL_UART_Init() function. + * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. + * @note As macro is expected to be used for modifying CTS Hw flow control feature activation, without need + * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : + * - UART instance should have already been initialised (through call of HAL_UART_Init() ) + * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) + * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). + * @param __HANDLE__: specifies the UART Handle. + * This parameter can be any USARTx (supporting the HW Flow control feature). + * It is used to select the USART peripheral (USART availability and x value depending on device). + * @retval None + */ +#define __HAL_UART_HWCONTROL_CTS_DISABLE(__HANDLE__) \ + do{ \ + CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \ + (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_CTSE); \ + } while(0) + +/** @brief Enable RTS flow control + * This macro allows to enable RTS hardware flow control for a given UART instance, + * without need to call HAL_UART_Init() function. + * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. + * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need + * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : + * - UART instance should have already been initialised (through call of HAL_UART_Init() ) + * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) + * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). + * @param __HANDLE__: specifies the UART Handle. + * This parameter can be any USARTx (supporting the HW Flow control feature). + * It is used to select the USART peripheral (USART availability and x value depending on device). + * @retval None + */ +#define __HAL_UART_HWCONTROL_RTS_ENABLE(__HANDLE__) \ + do{ \ + SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE); \ + (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_RTSE; \ + } while(0) + +/** @brief Disable RTS flow control + * This macro allows to disable RTS hardware flow control for a given UART instance, + * without need to call HAL_UART_Init() function. + * As involving direct access to UART registers, usage of this macro should be fully endorsed by user. + * @note As macro is expected to be used for modifying RTS Hw flow control feature activation, without need + * for USART instance Deinit/Init, following conditions for macro call should be fulfilled : + * - UART instance should have already been initialised (through call of HAL_UART_Init() ) + * - macro could only be called when corresponding UART instance is disabled (i.e __HAL_UART_DISABLE(__HANDLE__)) + * and should be followed by an Enable macro (i.e __HAL_UART_ENABLE(__HANDLE__)). + * @param __HANDLE__: specifies the UART Handle. + * This parameter can be any USARTx (supporting the HW Flow control feature). + * It is used to select the USART peripheral (USART availability and x value depending on device). + * @retval None + */ +#define __HAL_UART_HWCONTROL_RTS_DISABLE(__HANDLE__) \ + do{ \ + CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE);\ + (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_RTSE); \ + } while(0) + + +/** @brief Enable UART + * @param __HANDLE__: specifies the UART Handle. + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @retval None + */ +#define __HAL_UART_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 |= USART_CR1_UE) + +/** @brief Disable UART + * UART Handle selects the USARTx or UARTy peripheral + * (USART,UART availability and x,y values depending on device). + * @retval None + */ +#define __HAL_UART_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE) + +/** + * @} + */ + + +/* Private macros --------------------------------------------------------*/ +/** @defgroup UART_Private_Macros UART Private Macros + * @{ + */ + +#define UART_CR1_REG_INDEX 1 +#define UART_CR2_REG_INDEX 2 +#define UART_CR3_REG_INDEX 3 + +#define UART_DIV_SAMPLING16(_PCLK_, _BAUD_) (((_PCLK_)*25)/(4*(_BAUD_))) +#define UART_DIVMANT_SAMPLING16(_PCLK_, _BAUD_) (UART_DIV_SAMPLING16((_PCLK_), (_BAUD_))/100) +#define UART_DIVFRAQ_SAMPLING16(_PCLK_, _BAUD_) (((UART_DIV_SAMPLING16((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) * 100)) * 16 + 50) / 100) +/* UART BRR = mantissa + overflow + fraction + = (UART DIVMANT << 4) + (UART DIVFRAQ & 0xF0) + (UART DIVFRAQ & 0x0F) */ +#define UART_BRR_SAMPLING16(_PCLK_, _BAUD_) (((UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) << 4) + \ + (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0xF0)) + \ + (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0x0F)) +#define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) || \ + ((LENGTH) == UART_WORDLENGTH_9B)) +#define IS_UART_LIN_WORD_LENGTH(LENGTH) ((LENGTH) == UART_WORDLENGTH_8B) + +#define IS_UART_STOPBITS(STOPBITS) (((STOPBITS) == UART_STOPBITS_1) || \ + ((STOPBITS) == UART_STOPBITS_2)) + +#define IS_UART_PARITY(PARITY) (((PARITY) == UART_PARITY_NONE) || \ + ((PARITY) == UART_PARITY_EVEN) || \ + ((PARITY) == UART_PARITY_ODD)) + +#define IS_UART_HARDWARE_FLOW_CONTROL(CONTROL)\ + (((CONTROL) == UART_HWCONTROL_NONE) || \ + ((CONTROL) == UART_HWCONTROL_RTS) || \ + ((CONTROL) == UART_HWCONTROL_CTS) || \ + ((CONTROL) == UART_HWCONTROL_RTS_CTS)) + +#define IS_UART_MODE(MODE) ((((MODE) & (~((uint32_t)UART_MODE_TX_RX))) == 0x00) && \ + ((MODE) != (uint32_t)0x00000000)) + +#define IS_UART_STATE(STATE) (((STATE) == UART_STATE_DISABLE) || \ + ((STATE) == UART_STATE_ENABLE)) + +#define IS_UART_OVERSAMPLING(SAMPLING) ((SAMPLING) == UART_OVERSAMPLING_16) +#define IS_UART_LIN_OVERSAMPLING(SAMPLING) ((SAMPLING) == UART_OVERSAMPLING_16) + +#define IS_UART_LIN_BREAK_DETECT_LENGTH(LENGTH) (((LENGTH) == UART_LINBREAKDETECTLENGTH_10B) || \ + ((LENGTH) == UART_LINBREAKDETECTLENGTH_11B)) + +#define IS_UART_WAKEUPMETHOD(WAKEUP) (((WAKEUP) == UART_WAKEUPMETHOD_IDLELINE) || \ + ((WAKEUP) == UART_WAKEUPMETHOD_ADDRESSMARK)) + + +/** Check UART Baud rate + * __BAUDRATE__: Baudrate specified by the user + * The maximum Baud Rate is derived from the maximum clock on APB (i.e. 72 MHz) + * divided by the smallest oversampling used on the USART (i.e. 16) + * Retrun : TRUE or FALSE + */ +#define IS_UART_BAUDRATE(__BAUDRATE__) ((__BAUDRATE__) < 4500001) + +/** Check UART Node Address + * __ADDRESS__: UART Node address specified by the user + * UART Node address is used in Multi processor communication for wakeup + * with address mark detection. + * This parameter must be a number between Min_Data = 0 and Max_Data = 15 + * Return : TRUE or FALSE + */ +#define IS_UART_ADDRESS(__ADDRESS__) ((__ADDRESS__) <= 0xF) + +/** UART interruptions flag mask + */ +#define UART_IT_MASK ((uint32_t) USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE | USART_CR1_RXNEIE | \ + USART_CR1_IDLEIE | USART_CR2_LBDIE | USART_CR3_CTSIE | USART_CR3_EIE ) + +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ + +/** @addtogroup UART_Exported_Functions UART Exported Functions + * @{ + */ + +/** @addtogroup UART_Exported_Functions_Group1 Initialization and de-initialization functions + * @{ + */ + +/* Initialization and de-initialization functions ****************************/ +HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart); +HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart); +HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength); +HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod); +HAL_StatusTypeDef HAL_UART_DeInit (UART_HandleTypeDef *huart); +void HAL_UART_MspInit(UART_HandleTypeDef *huart); +void HAL_UART_MspDeInit(UART_HandleTypeDef *huart); + +/** + * @} + */ + +/** @addtogroup UART_Exported_Functions_Group2 IO operation functions + * @{ + */ + +/* IO operation functions *****************************************************/ +HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout); +HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout); +HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); +HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); +HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); +HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size); +HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart); +HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart); +HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart); +void HAL_UART_IRQHandler(UART_HandleTypeDef *huart); +void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart); +void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart); +void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart); +void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart); +void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart); + +/** + * @} + */ + +/** @addtogroup UART_Exported_Functions_Group3 Peripheral Control functions + * @{ + */ + +/* Peripheral Control functions ************************************************/ +HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart); +HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart); +HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart); +HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart); +HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart); + +/** + * @} + */ + +/** @addtogroup UART_Exported_Functions_Group4 Peripheral State and Errors functions + * @{ + */ + +/* Peripheral State and Errors functions **************************************************/ +HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart); +uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart); + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32F1xx_HAL_UART_H */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ diff --git a/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c b/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c new file mode 100644 index 0000000..8f06df7 --- /dev/null +++ b/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c @@ -0,0 +1,1921 @@ +/** + ****************************************************************************** + * @file stm32f1xx_hal_uart.c + * @author MCD Application Team + * @version V1.0.4 + * @date 29-April-2016 + * @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 the USART pins (TX as alternate function pull-up, RX as alternate function Input). + (##) 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 initialized 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. + (+++) Configure the USARTx interrupt priority and enable the NVIC USART IRQ handle + (used for last byte sending completion detection in DMA non circular mode) + + (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Hardware + flow control and Mode(Receiver/Transmitter) in the huart Init 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 LIN mode, initialize the UART registers by calling the HAL_LIN_Init() API. + + (#) For the Multi-Processor mode, initialize the UART registers by calling + the HAL_MultiProcessor_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() and HAL_HalfDuplex_Init()) 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 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 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 + (+) __HAL_UART_GET_IT_SOURCE: Check whether the specified UART interrupt has occurred or not + + [..] + (@) You can refer to the UART HAL driver header file for more useful macros + + @endverbatim + ****************************************************************************** + * @attention + * + *

© COPYRIGHT(c) 2016 STMicroelectronics

+ * + * 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 "stm32f1xx_hal.h" + +/** @addtogroup STM32F1xx_HAL_Driver + * @{ + */ + +/** @defgroup UART UART + * @brief HAL UART module driver + * @{ + */ +#ifdef HAL_UART_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macros ------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @addtogroup UART_Private_Functions UART Private Functions + * @{ + */ +static void UART_SetConfig (UART_HandleTypeDef *huart); +static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart); +static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart); +static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart); +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); +static HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, uint32_t Timeout); +/** + * @} + */ + +/* 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 + (++) Hardware flow control + (++) Receiver/transmitter modes + [..] + The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init() and HAL_MultiProcessor_Init() APIs + follow respectively the UART asynchronous, UART Half duplex, LIN and Multi-Processor + configuration procedures (details for the procedures are available in reference manuals + (RM0008 for STM32F10Xxx MCUs and RM0041 for STM32F100xx MCUs)). + + +@endverbatim + * @{ + */ + +/* + Additionnal remark: 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: + +-------------------------------------------------------------+ + | M bit | PCE bit | UART frame | + |---------------------|---------------------------------------| + | 0 | 0 | | SB | 8 bit data | STB | | + |---------|-----------|---------------------------------------| + | 0 | 1 | | SB | 7 bit data | PB | STB | | + |---------|-----------|---------------------------------------| + | 1 | 0 | | SB | 9 bit data | STB | | + |---------|-----------|---------------------------------------| + | 1 | 1 | | SB | 8 bit data | PB | STB | | + +-------------------------------------------------------------+ +*/ + +/** + * @brief Initializes the UART mode according to the specified parameters in + * the UART_InitTypeDef and create the associated handle. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart) +{ + /* Check the UART handle allocation */ + if(huart == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + if(huart->Init.HwFlowCtl != UART_HWCONTROL_NONE) + { + /* The hardware flow control is available only for USART1, USART2, USART3 */ + assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance)); + assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl)); + } + else + { + assert_param(IS_UART_INSTANCE(huart->Instance)); + } + assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength)); + assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling)); + + if(huart->State == HAL_UART_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + huart->Lock = HAL_UNLOCKED; + + /* Init the low level hardware */ + HAL_UART_MspInit(huart); + } + + huart->State = HAL_UART_STATE_BUSY; + + /* Disable the peripheral */ + __HAL_UART_DISABLE(huart); + + /* Set the UART Communication parameters */ + UART_SetConfig(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.*/ + CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN)); + + /* Enable the peripheral */ + __HAL_UART_ENABLE(huart); + + /* Initialize the UART state */ + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->State= HAL_UART_STATE_READY; + + return HAL_OK; +} + +/** + * @brief Initializes the half-duplex mode according to the specified + * parameters in the UART_InitTypeDef and create the associated handle. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart) +{ + /* Check the UART handle allocation */ + if(huart == NULL) + { + return HAL_ERROR; + } + + /* Check UART instance */ + assert_param(IS_UART_HALFDUPLEX_INSTANCE(huart->Instance)); + assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength)); + assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling)); + + if(huart->State == HAL_UART_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + huart->Lock = HAL_UNLOCKED; + + /* Init the low level hardware */ + HAL_UART_MspInit(huart); + } + + huart->State = HAL_UART_STATE_BUSY; + + /* Disable the peripheral */ + __HAL_UART_DISABLE(huart); + + /* Set the UART Communication parameters */ + UART_SetConfig(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.*/ + CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_IREN | USART_CR3_SCEN)); + + /* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */ + SET_BIT(huart->Instance->CR3, USART_CR3_HDSEL); + + /* Enable the peripheral */ + __HAL_UART_ENABLE(huart); + + /* Initialize the UART state*/ + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->State= HAL_UART_STATE_READY; + + return HAL_OK; +} + +/** + * @brief Initializes the LIN mode according to the specified + * parameters in the UART_InitTypeDef and create the associated handle. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param BreakDetectLength: Specifies the LIN break detection length. + * This parameter can be one of the following values: + * @arg UART_LINBREAKDETECTLENGTH_10B: 10-bit break detection + * @arg UART_LINBREAKDETECTLENGTH_11B: 11-bit break detection + * @retval HAL status + */ +HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength) +{ + /* Check the UART handle allocation */ + if(huart == NULL) + { + return HAL_ERROR; + } + + /* Check the LIN UART instance */ + assert_param(IS_UART_LIN_INSTANCE(huart->Instance)); + /* Check the Break detection length parameter */ + assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength)); + assert_param(IS_UART_LIN_WORD_LENGTH(huart->Init.WordLength)); + assert_param(IS_UART_LIN_OVERSAMPLING(huart->Init.OverSampling)); + + if(huart->State == HAL_UART_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + huart->Lock = HAL_UNLOCKED; + + /* Init the low level hardware */ + HAL_UART_MspInit(huart); + } + + huart->State = HAL_UART_STATE_BUSY; + + /* Disable the peripheral */ + __HAL_UART_DISABLE(huart); + + /* Set the UART Communication parameters */ + UART_SetConfig(huart); + + /* In LIN mode, the following bits must be kept cleared: + - CLKEN bits in the USART_CR2 register, + - SCEN and IREN bits in the USART_CR3 register.*/ + CLEAR_BIT(huart->Instance->CR2, USART_CR2_CLKEN); + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_HDSEL | USART_CR3_IREN | USART_CR3_SCEN)); + + /* Enable the LIN mode by setting the LINEN bit in the CR2 register */ + SET_BIT(huart->Instance->CR2, USART_CR2_LINEN); + + /* Set the USART LIN Break detection length. */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength); + + /* Enable the peripheral */ + __HAL_UART_ENABLE(huart); + + /* Initialize the UART state*/ + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->State= HAL_UART_STATE_READY; + + return HAL_OK; +} + +/** + * @brief Initializes the Multi-Processor mode according to the specified + * parameters in the UART_InitTypeDef and create the associated handle. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param Address: UART node address + * @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 + * @retval HAL status + */ +HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod) +{ + /* Check the UART handle allocation */ + if(huart == NULL) + { + return HAL_ERROR; + } + + /* Check UART instance capabilities */ + assert_param(IS_UART_MULTIPROCESSOR_INSTANCE(huart->Instance)); + + /* Check the Address & wake up method parameters */ + assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod)); + assert_param(IS_UART_ADDRESS(Address)); + assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength)); + assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling)); + + if(huart->State == HAL_UART_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + huart->Lock = HAL_UNLOCKED; + + /* Init the low level hardware */ + HAL_UART_MspInit(huart); + } + + huart->State = HAL_UART_STATE_BUSY; + + /* Disable the peripheral */ + __HAL_UART_DISABLE(huart); + + /* Set the UART Communication parameters */ + UART_SetConfig(huart); + + /* In Multi-Processor mode, the following bits must be kept cleared: + - LINEN and CLKEN bits in the USART_CR2 register, + - SCEN, HDSEL and IREN bits in the USART_CR3 register */ + CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN)); + + /* Set the USART address node */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, Address); + + /* Set the wake up method by setting the WAKE bit in the CR1 register */ + MODIFY_REG(huart->Instance->CR1, USART_CR1_WAKE, WakeUpMethod); + + /* Enable the peripheral */ + __HAL_UART_ENABLE(huart); + + /* Initialize the UART state */ + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->State= HAL_UART_STATE_READY; + + return HAL_OK; +} + +/** + * @brief DeInitializes the UART peripheral. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart) +{ + /* Check the UART handle allocation */ + if(huart == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + assert_param(IS_UART_INSTANCE(huart->Instance)); + + huart->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: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ + __weak void HAL_UART_MspInit(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + /* NOTE: This function should not be modified, when the callback is needed, + the HAL_UART_MspInit can be implemented in the user file + */ +} + +/** + * @brief UART MSP DeInit. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ + __weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + /* NOTE: This function should not be modified, when the callback is needed, + the HAL_UART_MspDeInit can be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup UART_Exported_Functions_Group2 IO operation functions + * @brief UART Transmit and Receive functions + * +@verbatim + ============================================================================== + ##### IO operation functions ##### + ============================================================================== + [..] + This subsection provides a set of functions allowing to manage the UART asynchronous + and Half duplex data transfers. + + (#) There are two modes of transfer: + (++) Blocking mode: The communication is performed in polling mode. + The HAL status of all data processing is returned by the same function + after finishing transfer. + (++) Non blocking mode: The communication is performed using Interrupts + or DMA, these APIs return the HAL status. + The end of the data processing will be indicated through the + dedicated UART IRQ when using Interrupt mode or the DMA IRQ when + using DMA mode. + The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks + will be executed respectively at the end of the transmit or receive process. + The HAL_UART_ErrorCallback() user callback will be executed when + a communication error is detected. + + (#) Blocking mode APIs are: + (++) HAL_UART_Transmit() + (++) HAL_UART_Receive() + + (#) Non Blocking mode APIs with Interrupt are: + (++) HAL_UART_Transmit_IT() + (++) HAL_UART_Receive_IT() + (++) HAL_UART_IRQHandler() + + (#) Non Blocking mode functions with DMA are: + (++) HAL_UART_Transmit_DMA() + (++) HAL_UART_Receive_DMA() + (++) HAL_UART_DMAPause() + (++) HAL_UART_DMAResume() + (++) HAL_UART_DMAStop() + + (#) A set of Transfer Complete Callbacks are provided in non blocking mode: + (++) HAL_UART_TxHalfCpltCallback() + (++) HAL_UART_TxCpltCallback() + (++) HAL_UART_RxHalfCpltCallback() + (++) HAL_UART_RxCpltCallback() + (++) HAL_UART_ErrorCallback() + + [..] + (@) In the Half duplex communication, it is forbidden to run the transmit + and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX + can't be useful. + +@endverbatim + * @{ + */ + +/** + * @brief Sends an amount of data in blocking mode. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param pData: Pointer to data buffer + * @param Size: Amount of data to be sent + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ + uint16_t* tmp; + uint32_t tmp_state = 0; + + tmp_state = huart->State; + if((tmp_state == HAL_UART_STATE_READY) || (tmp_state == HAL_UART_STATE_BUSY_RX)) + { + if((pData == 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(huart->Init.WordLength == UART_WORDLENGTH_9B) + { + if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + tmp = (uint16_t*) pData; + huart->Instance->DR = (*tmp & (uint16_t)0x01FF); + if(huart->Init.Parity == UART_PARITY_NONE) + { + pData +=2; + } + else + { + pData +=1; + } + } + else + { + if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + huart->Instance->DR = (*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 Receives an amount of data in blocking mode. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param pData: Pointer to data buffer + * @param Size: Amount of data to be received + * @param Timeout: Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ + uint16_t* tmp; + uint32_t tmp_state = 0; + + tmp_state = huart->State; + if((tmp_state == HAL_UART_STATE_READY) || (tmp_state == HAL_UART_STATE_BUSY_TX)) + { + if((pData == 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; + + /* Check the remain data to be received */ + while(huart->RxXferCount > 0) + { + huart->RxXferCount--; + if(huart->Init.WordLength == UART_WORDLENGTH_9B) + { + if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + tmp = (uint16_t*) pData ; + if(huart->Init.Parity == UART_PARITY_NONE) + { + *tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x01FF); + pData +=2; + } + else + { + *tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x00FF); + pData +=1; + } + + } + else + { + if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + if(huart->Init.Parity == UART_PARITY_NONE) + { + *pData++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x00FF); + } + else + { + *pData++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x007F); + } + + } + } + + /* 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 Sends an amount of data in non blocking mode. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param pData: Pointer to data buffer + * @param Size: Amount of data to be sent + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size) +{ + uint32_t tmp_state = 0; + + tmp_state = huart->State; + if((tmp_state == HAL_UART_STATE_READY) || (tmp_state == HAL_UART_STATE_BUSY_RX)) + { + if((pData == 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; + } + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + /* Enable the UART Transmit data register empty Interrupt */ + __HAL_UART_ENABLE_IT(huart, UART_IT_TXE); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receives an amount of data in non blocking mode + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param pData: Pointer to data buffer + * @param Size: Amount of data to be received + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size) +{ + uint32_t tmp_state = 0; + + tmp_state = huart->State; + if((tmp_state == HAL_UART_STATE_READY) || (tmp_state == HAL_UART_STATE_BUSY_TX)) + { + if((pData == NULL ) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(huart); + + huart->pRxBuffPtr = pData; + huart->RxXferSize = Size; + huart->RxXferCount = 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; + } + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + /* Enable the UART Parity Error Interrupt */ + __HAL_UART_ENABLE_IT(huart, UART_IT_PE); + + /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_UART_ENABLE_IT(huart, UART_IT_ERR); + + /* Enable the UART Data Register not empty Interrupt */ + __HAL_UART_ENABLE_IT(huart, UART_IT_RXNE); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Sends an amount of data in non blocking mode. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param pData: Pointer to data buffer + * @param Size: Amount of data to be sent + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size) +{ + uint32_t *tmp; + uint32_t tmp_state = 0; + + tmp_state = huart->State; + if((tmp_state == HAL_UART_STATE_READY) || (tmp_state == HAL_UART_STATE_BUSY_RX)) + { + if((pData == 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->DR, Size); + + /* Clear the TC flag in the SR register by writing 0 to it */ + __HAL_UART_CLEAR_FLAG(huart, UART_FLAG_TC); + + /* Enable the DMA transfer for transmit request by setting the DMAT bit + in the UART CR3 register */ + SET_BIT(huart->Instance->CR3, USART_CR3_DMAT); + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receives an amount of data in non blocking mode. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param pData: Pointer to data buffer + * @param Size: Amount of data to be received + * @note When the UART parity is enabled (PCE = 1), the 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; + uint32_t tmp_state = 0; + + tmp_state = huart->State; + if((tmp_state == HAL_UART_STATE_READY) || (tmp_state == HAL_UART_STATE_BUSY_TX)) + { + if((pData == 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->DR, *(uint32_t*)tmp, Size); + + /* Enable the DMA transfer for the receiver request by setting the DMAR bit + in the UART CR3 register */ + SET_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Pauses the DMA Transfer. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart) +{ + /* Process Locked */ + __HAL_LOCK(huart); + + if(huart->State == HAL_UART_STATE_BUSY_TX) + { + /* Disable the UART DMA Tx request */ + CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); + } + else if(huart->State == HAL_UART_STATE_BUSY_RX) + { + /* Disable the UART DMA Rx request */ + CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + } + else if (huart->State == HAL_UART_STATE_BUSY_TX_RX) + { + /* Disable the UART DMA Tx & Rx requests */ + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_DMAT | USART_CR3_DMAR)); + } + else + { + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_ERROR; + } + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @brief Resumes the DMA Transfer. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart) +{ + /* Process Locked */ + __HAL_LOCK(huart); + + if(huart->State == HAL_UART_STATE_BUSY_TX) + { + /* Enable the UART DMA Tx request */ + SET_BIT(huart->Instance->CR3, USART_CR3_DMAT); + } + else if(huart->State == HAL_UART_STATE_BUSY_RX) + { + /* Clear the Overrun flag before resumming the Rx transfer*/ + __HAL_UART_CLEAR_OREFLAG(huart); + /* Enable the UART DMA Rx request */ + SET_BIT(huart->Instance->CR3, USART_CR3_DMAR); + } + else if(huart->State == HAL_UART_STATE_BUSY_TX_RX) + { + /* Clear the Overrun flag before resumming the Rx transfer*/ + __HAL_UART_CLEAR_OREFLAG(huart); + /* Enable the UART DMA Tx & Rx request */ + SET_BIT(huart->Instance->CR3, (USART_CR3_DMAT | USART_CR3_DMAR)); + } + else + { + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_ERROR; + } + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @brief Stops the DMA Transfer. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart) +{ + /* The Lock is not implemented on this API to allow the user application + to call the HAL UART API under callbacks HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback(): + when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated + and the correspond call back is executed HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback() + */ + + /* Disable the UART Tx/Rx DMA requests */ + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_DMAT | USART_CR3_DMAR)); + + /* Abort the UART DMA tx channel */ + if(huart->hdmatx != NULL) + { + HAL_DMA_Abort(huart->hdmatx); + } + /* Abort the UART DMA rx channel */ + if(huart->hdmarx != NULL) + { + HAL_DMA_Abort(huart->hdmarx); + } + + huart->State = HAL_UART_STATE_READY; + + return HAL_OK; +} + +/** + * @brief This function handles UART interrupt request. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ +void HAL_UART_IRQHandler(UART_HandleTypeDef *huart) +{ + uint32_t tmp_flag = 0, tmp_it_source = 0; + + tmp_flag = __HAL_UART_GET_FLAG(huart, UART_FLAG_PE); + tmp_it_source = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_PE); + /* UART parity error interrupt occurred ------------------------------------*/ + if((tmp_flag != RESET) && (tmp_it_source != RESET)) + { + huart->ErrorCode |= HAL_UART_ERROR_PE; + } + + tmp_flag = __HAL_UART_GET_FLAG(huart, UART_FLAG_FE); + tmp_it_source = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_ERR); + /* UART frame error interrupt occurred -------------------------------------*/ + if((tmp_flag != RESET) && (tmp_it_source != RESET)) + { + huart->ErrorCode |= HAL_UART_ERROR_FE; + } + + tmp_flag = __HAL_UART_GET_FLAG(huart, UART_FLAG_NE); + /* UART noise error interrupt occurred -------------------------------------*/ + if((tmp_flag != RESET) && (tmp_it_source != RESET)) + { + huart->ErrorCode |= HAL_UART_ERROR_NE; + } + + tmp_flag = __HAL_UART_GET_FLAG(huart, UART_FLAG_ORE); + /* UART Over-Run interrupt occurred ----------------------------------------*/ + if((tmp_flag != RESET) && (tmp_it_source != RESET)) + { + huart->ErrorCode |= HAL_UART_ERROR_ORE; + } + + tmp_flag = __HAL_UART_GET_FLAG(huart, UART_FLAG_RXNE); + tmp_it_source = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_RXNE); + /* UART in mode Receiver ---------------------------------------------------*/ + if((tmp_flag != RESET) && (tmp_it_source != RESET)) + { + UART_Receive_IT(huart); + } + + tmp_flag = __HAL_UART_GET_FLAG(huart, UART_FLAG_TXE); + tmp_it_source = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_TXE); + /* UART in mode Transmitter ------------------------------------------------*/ + if((tmp_flag != RESET) && (tmp_it_source != RESET)) + { + UART_Transmit_IT(huart); + } + + tmp_flag = __HAL_UART_GET_FLAG(huart, UART_FLAG_TC); + tmp_it_source = __HAL_UART_GET_IT_SOURCE(huart, UART_IT_TC); + /* UART in mode Transmitter end --------------------------------------------*/ + if((tmp_flag != RESET) && (tmp_it_source != RESET)) + { + UART_EndTransmit_IT(huart); + } + + if(huart->ErrorCode != HAL_UART_ERROR_NONE) + { + /* Clear all the error flag at once */ + __HAL_UART_CLEAR_PEFLAG(huart); + + /* Set the UART state ready to be able to start again the process */ + huart->State = HAL_UART_STATE_READY; + + HAL_UART_ErrorCallback(huart); + } +} + +/** + * @brief Tx Transfer completed callbacks. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ + __weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + /* NOTE: This function should not be modified, when the callback is needed, + the HAL_UART_TxCpltCallback can be implemented in the user file + */ +} + +/** + * @brief Tx Half Transfer completed callbacks. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ + __weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + /* NOTE: This function should not be modified, when the callback is needed, + the HAL_UART_TxHalfCpltCallback can be implemented in the user file + */ +} + +/** + * @brief Rx Transfer completed callbacks. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ +__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + /* NOTE: This function should not be modified, when the callback is needed, + the HAL_UART_RxCpltCallback can be implemented in the user file + */ +} + +/** + * @brief Rx Half Transfer completed callbacks. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ +__weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + /* NOTE: This function should not be modified, when the callback is needed, + the HAL_UART_RxHalfCpltCallback can be implemented in the user file + */ +} + +/** + * @brief UART error callbacks. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ + __weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + /* NOTE: This function should not be modified, when the callback is needed, + the HAL_UART_ErrorCallback can be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup UART_Exported_Functions_Group3 Peripheral Control functions + * @brief UART control functions + * +@verbatim + ============================================================================== + ##### Peripheral Control functions ##### + ============================================================================== + [..] + This subsection provides a set of functions allowing to control the UART: + (+) HAL_LIN_SendBreak() API can be helpful to transmit the break character. + (+) HAL_MultiProcessor_EnterMuteMode() API can be helpful to enter the UART in mute mode. + (+) HAL_MultiProcessor_ExitMuteMode() API can be helpful to exit the UART mute mode by software. + (+) HAL_HalfDuplex_EnableTransmitter() API to enable the UART transmitter and disables the UART receiver in Half Duplex mode + (+) HAL_HalfDuplex_EnableReceiver() API to enable the UART receiver and disables the UART transmitter in Half Duplex mode + +@endverbatim + * @{ + */ + +/** + * @brief Transmits break characters. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart) +{ + /* Check the parameters */ + assert_param(IS_UART_INSTANCE(huart->Instance)); + + /* Process Locked */ + __HAL_LOCK(huart); + + huart->State = HAL_UART_STATE_BUSY; + + /* Send break characters */ + SET_BIT(huart->Instance->CR1, USART_CR1_SBK); + + huart->State = HAL_UART_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @brief Enters the UART in mute mode. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart) +{ + /* Check the parameters */ + assert_param(IS_UART_INSTANCE(huart->Instance)); + + /* Process Locked */ + __HAL_LOCK(huart); + + huart->State = HAL_UART_STATE_BUSY; + + /* Enable the USART mute mode by setting the RWU bit in the CR1 register */ + SET_BIT(huart->Instance->CR1, USART_CR1_RWU); + + huart->State = HAL_UART_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @brief Exits the UART mute mode: wake up software. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart) +{ + /* Check the parameters */ + assert_param(IS_UART_INSTANCE(huart->Instance)); + + /* Process Locked */ + __HAL_LOCK(huart); + + huart->State = HAL_UART_STATE_BUSY; + + /* Disable the USART mute mode by clearing the RWU bit in the CR1 register */ + CLEAR_BIT(huart->Instance->CR1, USART_CR1_RWU); + + huart->State = HAL_UART_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @brief Enables the UART transmitter and disables the UART receiver. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart) +{ + /* Process Locked */ + __HAL_LOCK(huart); + + huart->State = HAL_UART_STATE_BUSY; + + /*-------------------------- USART CR1 Configuration -----------------------*/ + /* Clear TE and RE bits */ + /* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */ + MODIFY_REG(huart->Instance->CR1, (uint32_t)(USART_CR1_TE | USART_CR1_RE), 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: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart) +{ + /* Process Locked */ + __HAL_LOCK(huart); + + huart->State = HAL_UART_STATE_BUSY; + + /*-------------------------- USART CR1 Configuration -----------------------*/ + /* Clear TE and RE bits */ + /* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */ + MODIFY_REG(huart->Instance->CR1, (uint32_t)(USART_CR1_TE | USART_CR1_RE), 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 UART State and Errors functions + * +@verbatim + ============================================================================== + ##### Peripheral State and Errors functions ##### + ============================================================================== + [..] + This subsection provides a set of functions allowing to return the State of + UART communication process, return Peripheral Errors occurred during communication + process + (+) HAL_UART_GetState() API can be helpful to check in run-time the state of the UART peripheral. + (+) HAL_UART_GetError() check in run-time errors that could be occurred during communication. + +@endverbatim + * @{ + */ + +/** + * @brief Returns the UART state. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL state + */ +HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart) +{ + 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 UART Private functions + * @{ + */ +/** + * @brief DMA UART transmit process complete callback. + * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + /* DMA Normal mode*/ + if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) ) + { + huart->TxXferCount = 0; + + /* Disable the DMA transfer for transmit request by setting the DMAT bit + in the UART CR3 register */ + CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); + + /* Enable the UART Transmit Complete Interrupt */ + __HAL_UART_ENABLE_IT(huart, UART_IT_TC); + } + /* DMA Circular mode */ + else + { + HAL_UART_TxCpltCallback(huart); + } +} + +/** + * @brief DMA UART transmit process half complete callback + * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef* huart = (UART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent; + + HAL_UART_TxHalfCpltCallback(huart); +} + +/** + * @brief DMA UART receive process complete callback. + * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef* huart = ( UART_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + /* DMA Normal mode*/ + if ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) ) + { + huart->RxXferCount = 0; + + /* Disable the DMA transfer for the receiver request by setting the DMAR bit + in the UART CR3 register */ + CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* 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: Pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @retval None + */ +static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef* huart = (UART_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent; + + HAL_UART_RxHalfCpltCallback(huart); +} + +/** + * @brief DMA UART communication error callback. + * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @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 This function handles UART Communication Timeout. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param Flag: specifies the UART flag to check. + * @param Status: The new Flag status (SET or RESET). + * @param Timeout: Timeout duration + * @retval HAL status + */ +static HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, 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_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_READY; + + /* 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_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_TIMEOUT; + } + } + } + } + return HAL_OK; +} + +/** + * @brief Sends an amount of data in non blocking mode. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart) +{ + uint16_t* tmp; + uint32_t tmp_state = 0; + + tmp_state = huart->State; + if((tmp_state == HAL_UART_STATE_BUSY_TX) || (tmp_state == HAL_UART_STATE_BUSY_TX_RX)) + { + if(huart->Init.WordLength == UART_WORDLENGTH_9B) + { + tmp = (uint16_t*) huart->pTxBuffPtr; + huart->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF); + if(huart->Init.Parity == UART_PARITY_NONE) + { + huart->pTxBuffPtr += 2; + } + else + { + huart->pTxBuffPtr += 1; + } + } + else + { + huart->Instance->DR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0x00FF); + } + + if(--huart->TxXferCount == 0) + { + /* Disable the UART Transmit Complete Interrupt */ + __HAL_UART_DISABLE_IT(huart, UART_IT_TXE); + + /* Enable the UART Transmit Complete Interrupt */ + __HAL_UART_ENABLE_IT(huart, UART_IT_TC); + } + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + + +/** + * @brief Wraps up transmission in non blocking mode. + * @param huart: pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +static HAL_StatusTypeDef UART_EndTransmit_IT(UART_HandleTypeDef *huart) +{ + /* Disable the UART Transmit Complete Interrupt */ + __HAL_UART_DISABLE_IT(huart, UART_IT_TC); + + /* 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); + + return HAL_OK; +} + +/** + * @brief Receives an amount of data in non blocking mode + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +static HAL_StatusTypeDef UART_Receive_IT(UART_HandleTypeDef *huart) +{ + uint16_t* tmp; + uint32_t tmp_state = 0; + + tmp_state = huart->State; + if((tmp_state == HAL_UART_STATE_BUSY_RX) || (tmp_state == HAL_UART_STATE_BUSY_TX_RX)) + { + if(huart->Init.WordLength == UART_WORDLENGTH_9B) + { + tmp = (uint16_t*) huart->pRxBuffPtr; + if(huart->Init.Parity == UART_PARITY_NONE) + { + *tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x01FF); + huart->pRxBuffPtr += 2; + } + else + { + *tmp = (uint16_t)(huart->Instance->DR & (uint16_t)0x00FF); + huart->pRxBuffPtr += 1; + } + } + else + { + if(huart->Init.Parity == UART_PARITY_NONE) + { + *huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x00FF); + } + else + { + *huart->pRxBuffPtr++ = (uint8_t)(huart->Instance->DR & (uint8_t)0x007F); + } + } + + if(--huart->RxXferCount == 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 Configures the UART peripheral. + * @param huart: Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ +static void UART_SetConfig(UART_HandleTypeDef *huart) +{ + uint32_t tmpreg = 0x00; + + /* Check the parameters */ + assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate)); + assert_param(IS_UART_STOPBITS(huart->Init.StopBits)); + assert_param(IS_UART_PARITY(huart->Init.Parity)); + assert_param(IS_UART_MODE(huart->Init.Mode)); + + /*------- UART-associated USART registers setting : CR2 Configuration ------*/ + /* Configure the UART Stop Bits: Set STOP[13:12] bits according + * to huart->Init.StopBits value */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_STOP, huart->Init.StopBits); + + /*------- UART-associated USART registers setting : CR1 Configuration ------*/ + /* Configure the UART Word Length, Parity and mode: + Set the M bits according to huart->Init.WordLength value + Set PCE and PS bits according to huart->Init.Parity value + Set TE and RE bits according to huart->Init.Mode value */ + tmpreg = (uint32_t)huart->Init.WordLength | huart->Init.Parity | huart->Init.Mode ; + MODIFY_REG(huart->Instance->CR1, + (uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE), + tmpreg); + + /*------- UART-associated USART registers setting : CR3 Configuration ------*/ + /* Configure the UART HFC: Set CTSE and RTSE bits according to huart->Init.HwFlowCtl value */ + MODIFY_REG(huart->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE), huart->Init.HwFlowCtl); + + /*------- UART-associated USART registers setting : BRR Configuration ------*/ + if((huart->Instance == USART1)) + { + huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK2Freq(), huart->Init.BaudRate); + } + else + { + huart->Instance->BRR = UART_BRR_SAMPLING16(HAL_RCC_GetPCLK1Freq(), huart->Init.BaudRate); + } +} +/** + * @} + */ + +#endif /* HAL_UART_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3