/** ****************************************************************************** * @file stm32f2xx_usart.h * @author MCD Application Team * @version V1.0.0 * @date 18-April-2011 * @brief This file contains all the functions prototypes for the USART * firmware library. ****************************************************************************** * @attention * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. * *

© COPYRIGHT 2011 STMicroelectronics

****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F2xx_USART_H #define __STM32F2xx_USART_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32f2xx.h" /** @addtogroup STM32F2xx_StdPeriph_Driver * @{ */ /** @addtogroup USART * @{ */ /* Exported types ------------------------------------------------------------*/ /** * @brief USART Init Structure definition */ typedef struct { uint32_t USART_BaudRate; /*!< This member configures the USART communication baud rate. The baud rate is computed using the following formula: - IntegerDivider = ((PCLKx) / (8 * (OVR8+1) * (USART_InitStruct->USART_BaudRate))) - FractionalDivider = ((IntegerDivider - ((u32) IntegerDivider)) * 8 * (OVR8+1)) + 0.5 Where OVR8 is the "oversampling by 8 mode" configuration bit in the CR1 register. */ uint16_t USART_WordLength; /*!< Specifies the number of data bits transmitted or received in a frame. This parameter can be a value of @ref USART_Word_Length */ uint16_t USART_StopBits; /*!< Specifies the number of stop bits transmitted. This parameter can be a value of @ref USART_Stop_Bits */ uint16_t USART_Parity; /*!< Specifies the parity mode. This parameter can be a value of @ref USART_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). */ uint16_t USART_Mode; /*!< Specifies wether the Receive or Transmit mode is enabled or disabled. This parameter can be a value of @ref USART_Mode */ uint16_t USART_HardwareFlowControl; /*!< Specifies wether the hardware flow control mode is enabled or disabled. This parameter can be a value of @ref USART_Hardware_Flow_Control */ } USART_InitTypeDef; /** * @brief USART Clock Init Structure definition */ typedef struct { uint16_t USART_Clock; /*!< Specifies whether the USART clock is enabled or disabled. This parameter can be a value of @ref USART_Clock */ uint16_t USART_CPOL; /*!< Specifies the steady state of the serial clock. This parameter can be a value of @ref USART_Clock_Polarity */ uint16_t USART_CPHA; /*!< Specifies the clock transition on which the bit capture is made. This parameter can be a value of @ref USART_Clock_Phase */ uint16_t USART_LastBit; /*!< Specifies whether the clock pulse corresponding to the last transmitted data bit (MSB) has to be output on the SCLK pin in synchronous mode. This parameter can be a value of @ref USART_Last_Bit */ } USART_ClockInitTypeDef; /* Exported constants --------------------------------------------------------*/ /** @defgroup USART_Exported_Constants * @{ */ #define IS_USART_ALL_PERIPH(PERIPH) (((PERIPH) == USART1) || \ ((PERIPH) == USART2) || \ ((PERIPH) == USART3) || \ ((PERIPH) == UART4) || \ ((PERIPH) == UART5) || \ ((PERIPH) == USART6)) #define IS_USART_1236_PERIPH(PERIPH) (((PERIPH) == USART1) || \ ((PERIPH) == USART2) || \ ((PERIPH) == USART3) || \ ((PERIPH) == USART6)) /** @defgroup USART_Word_Length * @{ */ #define USART_WordLength_8b ((uint16_t)0x0000) #define USART_WordLength_9b ((uint16_t)0x1000) #define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WordLength_8b) || \ ((LENGTH) == USART_WordLength_9b)) /** * @} */ /** @defgroup USART_Stop_Bits * @{ */ #define USART_StopBits_1 ((uint16_t)0x0000) #define USART_StopBits_0_5 ((uint16_t)0x1000) #define USART_StopBits_2 ((uint16_t)0x2000) #define USART_StopBits_1_5 ((uint16_t)0x3000) #define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_StopBits_1) || \ ((STOPBITS) == USART_StopBits_0_5) || \ ((STOPBITS) == USART_StopBits_2) || \ ((STOPBITS) == USART_StopBits_1_5)) /** * @} */ /** @defgroup USART_Parity * @{ */ #define USART_Parity_No ((uint16_t)0x0000) #define USART_Parity_Even ((uint16_t)0x0400) #define USART_Parity_Odd ((uint16_t)0x0600) #define IS_USART_PARITY(PARITY) (((PARITY) == USART_Parity_No) || \ ((PARITY) == USART_Parity_Even) || \ ((PARITY) == USART_Parity_Odd)) /** * @} */ /** @defgroup USART_Mode * @{ */ #define USART_Mode_Rx ((uint16_t)0x0004) #define USART_Mode_Tx ((uint16_t)0x0008) #define IS_USART_MODE(MODE) ((((MODE) & (uint16_t)0xFFF3) == 0x00) && ((MODE) != (uint16_t)0x00)) /** * @} */ /** @defgroup USART_Hardware_Flow_Control * @{ */ #define USART_HardwareFlowControl_None ((uint16_t)0x0000) #define USART_HardwareFlowControl_RTS ((uint16_t)0x0100) #define USART_HardwareFlowControl_CTS ((uint16_t)0x0200) #define USART_HardwareFlowControl_RTS_CTS ((uint16_t)0x0300) #define IS_USART_HARDWARE_FLOW_CONTROL(CONTROL)\ (((CONTROL) == USART_HardwareFlowControl_None) || \ ((CONTROL) == USART_HardwareFlowControl_RTS) || \ ((CONTROL) == USART_HardwareFlowControl_CTS) || \ ((CONTROL) == USART_HardwareFlowControl_RTS_CTS)) /** * @} */ /** @defgroup USART_Clock * @{ */ #define USART_Clock_Disable ((uint16_t)0x0000) #define USART_Clock_Enable ((uint16_t)0x0800) #define IS_USART_CLOCK(CLOCK) (((CLOCK) == USART_Clock_Disable) || \ ((CLOCK) == USART_Clock_Enable)) /** * @} */ /** @defgroup USART_Clock_Polarity * @{ */ #define USART_CPOL_Low ((uint16_t)0x0000) #define USART_CPOL_High ((uint16_t)0x0400) #define IS_USART_CPOL(CPOL) (((CPOL) == USART_CPOL_Low) || ((CPOL) == USART_CPOL_High)) /** * @} */ /** @defgroup USART_Clock_Phase * @{ */ #define USART_CPHA_1Edge ((uint16_t)0x0000) #define USART_CPHA_2Edge ((uint16_t)0x0200) #define IS_USART_CPHA(CPHA) (((CPHA) == USART_CPHA_1Edge) || ((CPHA) == USART_CPHA_2Edge)) /** * @} */ /** @defgroup USART_Last_Bit * @{ */ #define USART_LastBit_Disable ((uint16_t)0x0000) #define USART_LastBit_Enable ((uint16_t)0x0100) #define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LastBit_Disable) || \ ((LASTBIT) == USART_LastBit_Enable)) /** * @} */ /** @defgroup USART_Interrupt_definition * @{ */ #define USART_IT_PE ((uint16_t)0x0028) #define USART_IT_TXE ((uint16_t)0x0727) #define USART_IT_TC ((uint16_t)0x0626) #define USART_IT_RXNE ((uint16_t)0x0525) #define USART_IT_IDLE ((uint16_t)0x0424) #define USART_IT_LBD ((uint16_t)0x0846) #define USART_IT_CTS ((uint16_t)0x096A) #define USART_IT_ERR ((uint16_t)0x0060) #define USART_IT_ORE ((uint16_t)0x0360) #define USART_IT_NE ((uint16_t)0x0260) #define USART_IT_FE ((uint16_t)0x0160) #define IS_USART_CONFIG_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \ ((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \ ((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \ ((IT) == USART_IT_CTS) || ((IT) == USART_IT_ERR)) #define IS_USART_GET_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \ ((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \ ((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \ ((IT) == USART_IT_CTS) || ((IT) == USART_IT_ORE) || \ ((IT) == USART_IT_NE) || ((IT) == USART_IT_FE)) #define IS_USART_CLEAR_IT(IT) (((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \ ((IT) == USART_IT_LBD) || ((IT) == USART_IT_CTS)) /** * @} */ /** @defgroup USART_DMA_Requests * @{ */ #define USART_DMAReq_Tx ((uint16_t)0x0080) #define USART_DMAReq_Rx ((uint16_t)0x0040) #define IS_USART_DMAREQ(DMAREQ) ((((DMAREQ) & (uint16_t)0xFF3F) == 0x00) && ((DMAREQ) != (uint16_t)0x00)) /** * @} */ /** @defgroup USART_WakeUp_methods * @{ */ #define USART_WakeUp_IdleLine ((uint16_t)0x0000) #define USART_WakeUp_AddressMark ((uint16_t)0x0800) #define IS_USART_WAKEUP(WAKEUP) (((WAKEUP) == USART_WakeUp_IdleLine) || \ ((WAKEUP) == USART_WakeUp_AddressMark)) /** * @} */ /** @defgroup USART_LIN_Break_Detection_Length * @{ */ #define USART_LINBreakDetectLength_10b ((uint16_t)0x0000) #define USART_LINBreakDetectLength_11b ((uint16_t)0x0020) #define IS_USART_LIN_BREAK_DETECT_LENGTH(LENGTH) \ (((LENGTH) == USART_LINBreakDetectLength_10b) || \ ((LENGTH) == USART_LINBreakDetectLength_11b)) /** * @} */ /** @defgroup USART_IrDA_Low_Power * @{ */ #define USART_IrDAMode_LowPower ((uint16_t)0x0004) #define USART_IrDAMode_Normal ((uint16_t)0x0000) #define IS_USART_IRDA_MODE(MODE) (((MODE) == USART_IrDAMode_LowPower) || \ ((MODE) == USART_IrDAMode_Normal)) /** * @} */ /** @defgroup USART_Flags * @{ */ #define USART_FLAG_CTS ((uint16_t)0x0200) #define USART_FLAG_LBD ((uint16_t)0x0100) #define USART_FLAG_TXE ((uint16_t)0x0080) #define USART_FLAG_TC ((uint16_t)0x0040) #define USART_FLAG_RXNE ((uint16_t)0x0020) #define USART_FLAG_IDLE ((uint16_t)0x0010) #define USART_FLAG_ORE ((uint16_t)0x0008) #define USART_FLAG_NE ((uint16_t)0x0004) #define USART_FLAG_FE ((uint16_t)0x0002) #define USART_FLAG_PE ((uint16_t)0x0001) #define IS_USART_FLAG(FLAG) (((FLAG) == USART_FLAG_PE) || ((FLAG) == USART_FLAG_TXE) || \ ((FLAG) == USART_FLAG_TC) || ((FLAG) == USART_FLAG_RXNE) || \ ((FLAG) == USART_FLAG_IDLE) || ((FLAG) == USART_FLAG_LBD) || \ ((FLAG) == USART_FLAG_CTS) || ((FLAG) == USART_FLAG_ORE) || \ ((FLAG) == USART_FLAG_NE) || ((FLAG) == USART_FLAG_FE)) #define IS_USART_CLEAR_FLAG(FLAG) ((((FLAG) & (uint16_t)0xFC9F) == 0x00) && ((FLAG) != (uint16_t)0x00)) #define IS_USART_BAUDRATE(BAUDRATE) (((BAUDRATE) > 0) && ((BAUDRATE) < 7500001)) #define IS_USART_ADDRESS(ADDRESS) ((ADDRESS) <= 0xF) #define IS_USART_DATA(DATA) ((DATA) <= 0x1FF) /** * @} */ /** * @} */ /* Exported macro ------------------------------------------------------------*/ /* Exported functions --------------------------------------------------------*/ /* Function used to set the USART configuration to the default reset state ***/ void USART_DeInit(USART_TypeDef* USARTx); /* Initialization and Configuration functions *********************************/ void USART_Init(USART_TypeDef* USARTx, USART_InitTypeDef* USART_InitStruct); void USART_StructInit(USART_InitTypeDef* USART_InitStruct); void USART_ClockInit(USART_TypeDef* USARTx, USART_ClockInitTypeDef* USART_ClockInitStruct); void USART_ClockStructInit(USART_ClockInitTypeDef* USART_ClockInitStruct); void USART_Cmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_SetPrescaler(USART_TypeDef* USARTx, uint8_t USART_Prescaler); void USART_OverSampling8Cmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_OneBitMethodCmd(USART_TypeDef* USARTx, FunctionalState NewState); /* Data transfers functions ***************************************************/ void USART_SendData(USART_TypeDef* USARTx, uint16_t Data); uint16_t USART_ReceiveData(USART_TypeDef* USARTx); /* Multi-Processor Communication functions ************************************/ void USART_SetAddress(USART_TypeDef* USARTx, uint8_t USART_Address); void USART_WakeUpConfig(USART_TypeDef* USARTx, uint16_t USART_WakeUp); void USART_ReceiverWakeUpCmd(USART_TypeDef* USARTx, FunctionalState NewState); /* LIN mode functions *********************************************************/ void USART_LINBreakDetectLengthConfig(USART_TypeDef* USARTx, uint16_t USART_LINBreakDetectLength); void USART_LINCmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_SendBreak(USART_TypeDef* USARTx); /* Half-duplex mode function **************************************************/ void USART_HalfDuplexCmd(USART_TypeDef* USARTx, FunctionalState NewState); /* Smartcard mode functions ***************************************************/ void USART_SmartCardCmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_SmartCardNACKCmd(USART_TypeDef* USARTx, FunctionalState NewState); void USART_SetGuardTime(USART_TypeDef* USARTx, uint8_t USART_GuardTime); /* IrDA mode functions ********************************************************/ void USART_IrDAConfig(USART_TypeDef* USARTx, uint16_t USART_IrDAMode); void USART_IrDACmd(USART_TypeDef* USARTx, FunctionalState NewState); /* DMA transfers management functions *****************************************/ void USART_DMACmd(USART_TypeDef* USARTx, uint16_t USART_DMAReq, FunctionalState NewState); /* Interrupts and flags management functions **********************************/ void USART_ITConfig(USART_TypeDef* USARTx, uint16_t USART_IT, FunctionalState NewState); FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG); void USART_ClearFlag(USART_TypeDef* USARTx, uint16_t USART_FLAG); ITStatus USART_GetITStatus(USART_TypeDef* USARTx, uint16_t USART_IT); void USART_ClearITPendingBit(USART_TypeDef* USARTx, uint16_t USART_IT); #ifdef __cplusplus } #endif #endif /* __STM32F2xx_USART_H */ /** * @} */ /** * @} */ /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/