USART driver modules. More...

Collaboration diagram for USART:

Modules
	USART_Exported_Constants

	USART_Private_Functions

Files
file	uart.h
	The CARME UART Module provides a function to initialize the GPIOs for the CARME UART ports.

file	uart.c
	The CARME UART Module provides a function to initialize the GPIOs for the CARME UART ports.

Data Structures
struct	USART_InitTypeDef
	USART Init Structure definition. More...

struct	USART_ClockInitTypeDef
	USART Clock Init Structure definition. More...

Macros
#define	CR1_CLEAR_MASK

#define	CR2_CLOCK_CLEAR_MASK

#define	CR3_CLEAR_MASK ((uint16_t)(USART_CR3_RTSE \| USART_CR3_CTSE))

#define	IT_MASK ((uint16_t)0x001F)

#define	CARME_UART0 USART1

#define	CARME_UART1 USART3

#define	CARME_ERROR_UART_NO_DATA (CARME_ERROR_UART_BASE+0)

#define	RCC_APB2Periph_CARME_UART0 RCC_APB2Periph_USART1

#define	RCC_APB1Periph_CARME_UART1 RCC_APB1Periph_USART3

Functions
void	USART_DeInit (USART_TypeDef *USARTx)
	Deinitializes the USARTx peripheral registers to their default reset values. More...

void	USART_Init (USART_TypeDef USARTx, USART_InitTypeDef USART_InitStruct)
	Initializes the USARTx peripheral according to the specified parameters in the USART_InitStruct . More...

void	USART_StructInit (USART_InitTypeDef *USART_InitStruct)
	Fills each USART_InitStruct member with its default value. More...

void	USART_ClockInit (USART_TypeDef USARTx, USART_ClockInitTypeDef USART_ClockInitStruct)
	Initializes the USARTx peripheral Clock according to the specified parameters in the USART_ClockInitStruct . More...

void	USART_ClockStructInit (USART_ClockInitTypeDef *USART_ClockInitStruct)
	Fills each USART_ClockInitStruct member with its default value. More...

void	USART_Cmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables the specified USART peripheral. More...

void	USART_SetPrescaler (USART_TypeDef *USARTx, uint8_t USART_Prescaler)
	Sets the system clock prescaler. More...

void	USART_OverSampling8Cmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables the USART's 8x oversampling mode. More...

void	USART_OneBitMethodCmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables the USART's one bit sampling method. More...

void	USART_SendData (USART_TypeDef *USARTx, uint16_t Data)
	Transmits single data through the USARTx peripheral. More...

uint16_t	USART_ReceiveData (USART_TypeDef *USARTx)
	Returns the most recent received data by the USARTx peripheral. More...

void	USART_SetAddress (USART_TypeDef *USARTx, uint8_t USART_Address)
	Sets the address of the USART node. More...

void	USART_WakeUpConfig (USART_TypeDef *USARTx, uint16_t USART_WakeUp)
	Selects the USART WakeUp method. More...

void	USART_ReceiverWakeUpCmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Determines if the USART is in mute mode or not. More...

void	USART_LINBreakDetectLengthConfig (USART_TypeDef *USARTx, uint16_t USART_LINBreakDetectLength)
	Sets the USART LIN Break detection length. More...

void	USART_LINCmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables the USART's LIN mode. More...

void	USART_SendBreak (USART_TypeDef *USARTx)
	Transmits break characters. More...

void	USART_HalfDuplexCmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables the USART's Half Duplex communication. More...

void	USART_SmartCardCmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables the USART's Smart Card mode. More...

void	USART_SmartCardNACKCmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables NACK transmission. More...

void	USART_SetGuardTime (USART_TypeDef *USARTx, uint8_t USART_GuardTime)
	Sets the specified USART guard time. More...

void	USART_IrDAConfig (USART_TypeDef *USARTx, uint16_t USART_IrDAMode)
	Configures the USART's IrDA interface. More...

void	USART_IrDACmd (USART_TypeDef *USARTx, FunctionalState NewState)
	Enables or disables the USART's IrDA interface. More...

void	USART_DMACmd (USART_TypeDef *USARTx, uint16_t USART_DMAReq, FunctionalState NewState)
	Enables or disables the USART's DMA interface. More...

void	USART_ITConfig (USART_TypeDef *USARTx, uint16_t USART_IT, FunctionalState NewState)
	Enables or disables the specified USART interrupts. More...

FlagStatus	USART_GetFlagStatus (USART_TypeDef *USARTx, uint16_t USART_FLAG)
	Checks whether the specified USART flag is set or not. More...

void	USART_ClearFlag (USART_TypeDef *USARTx, uint16_t USART_FLAG)
	Clears the USARTx's pending flags. More...

ITStatus	USART_GetITStatus (USART_TypeDef *USARTx, uint16_t USART_IT)
	Checks whether the specified USART interrupt has occurred or not. More...

void	USART_ClearITPendingBit (USART_TypeDef *USARTx, uint16_t USART_IT)
	Clears the USARTx's interrupt pending bits. More...

void	CARME_UART_Init (USART_TypeDef UARTx, USART_InitTypeDef pUSART_InitStruct)
	UART initialization. More...

void	CARME_UART_GPIO_Init (void)
	CARME UART port GPIO initialization. More...

void	CARME_UART_SendChar (USART_TypeDef *UARTx, char c)
	Send a char over the UART port. More...

void	CARME_UART_SendString (USART_TypeDef UARTx, char pStr)
	Send a string over the UART port. You can use printf() to send a formated String over the CARME_UART0. More...

ERROR_CODES	CARME_UART_ReceiveChar (USART_TypeDef UARTx, char pc)
	Receive a char from the UART input buffer. More...

ERROR_CODES	CARME_UART_ReceiveString (USART_TypeDef UARTx, char pc, uint8_t count)
	Receive a string from the UART input buffer until new line or carriage return or there is no more data. More...

Variables
static CARME_Port_Pin_t	CARME_UART_Port_Pin []
	UART Port and Pin association. More...

Detailed Description

USART driver modules.

Macro Definition Documentation

#define CARME_ERROR_UART_NO_DATA (CARME_ERROR_UART_BASE+0)

No data to receive

Definition at line 85 of file uart.h.

#define CARME_UART0 USART1

CARME UART Port 0

Examples:: usart.c, and usart_interrupt.c.

Definition at line 81 of file uart.h.

#define CARME_UART1 USART3

CARME UART Port 1

Definition at line 82 of file uart.h.

#define CR1_CLEAR_MASK

Value:

((uint16_t)(USART_CR1_M | USART_CR1_PCE | \
                                              USART_CR1_PS | USART_CR1_TE | \
                                              USART_CR1_RE))

< USART CR1 register clear Mask ((~(uint16_t)0xE9F3)) USART CR2 register clock bits clear Mask ((~(uint16_t)0xF0FF))

Definition at line 108 of file stm32f4xx_usart.c.

#define CR2_CLOCK_CLEAR_MASK

Value:

((uint16_t)(USART_CR2_CLKEN | USART_CR2_CPOL | \

USART_CR2_CPHA | USART_CR2_LBCL))

USART CR3 register clear Mask ((~(uint16_t)0xFCFF))

Definition at line 113 of file stm32f4xx_usart.c.

#define CR3_CLEAR_MASK ((uint16_t)(USART_CR3_RTSE | USART_CR3_CTSE))

USART Interrupts mask

Definition at line 117 of file stm32f4xx_usart.c.

#define RCC_APB1Periph_CARME_UART1 RCC_APB1Periph_USART3

RCC for the CARME UART1

Definition at line 88 of file uart.c.

#define RCC_APB2Periph_CARME_UART0 RCC_APB2Periph_USART1

RCC for the CARME UART0

Definition at line 87 of file uart.c.

Function Documentation

void CARME_UART_GPIO_Init ( void )

CARME UART port GPIO initialization.

Returns: None

Definition at line 166 of file uart.c.

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void CARME_UART_Init	(	USART_TypeDef *	UARTx,
		USART_InitTypeDef *	pUSART_InitStruct
	)

UART initialization.

Parameters

[in]	UARTx	The UART port which will be used. Possible values are CARME_UART0 and CARME_UART1.
[in]	pUSART_InitStruct	Pointer to the USART init structure.

Returns: None

Examples:: usart.c, and usart_interrupt.c.

Definition at line 125 of file uart.c.

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ERROR_CODES CARME_UART_ReceiveChar	(	USART_TypeDef *	UARTx,
		char *	pc
	)

Receive a char from the UART input buffer.

Parameters

[in]	UARTx	The UART port you want to use. Possible values are CARME_UART0 and CARME_UART1.
[out]	pc	Pointer to unsigned char to write data.

Returns: 0 = CARME_NO_ERROR
30 = CARME_ERROR_UART_NO_DATA

Definition at line 225 of file uart.c.

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ERROR_CODES CARME_UART_ReceiveString	(	USART_TypeDef *	UARTx,
		char *	pc,
		uint8_t	count
	)

Receive a string from the UART input buffer until new line or carriage return or there is no more data.

Parameters

[in]	UARTx	The UART port you want to use. Possible values are CARME_UART0 and CARME_UART1.
[out]	pc	Pointer to the start of the string
[in]	count	Maximal length of the string

Returns: 0 = CARME_NO_ERROR
30 = CARME_ERROR_UART_NO_DATA

Definition at line 253 of file uart.c.

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void CARME_UART_SendChar	(	USART_TypeDef *	UARTx,
		char	c
	)

Send a char over the UART port.

Parameters

[in]	UARTx	The UART port you want to use. Possible values are CARME_UART0 and CARME_UART1.
[in]	c	Character you want to send.

Returns: None

Definition at line 188 of file uart.c.

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void CARME_UART_SendString	(	USART_TypeDef *	UARTx,
		char *	pStr
	)

Send a string over the UART port. You can use printf() to send a formated String over the CARME_UART0.

Parameters

[in]	UARTx	The UART port you want to use. Possible values are CARME_UART0 and CARME_UART1.
[in]	pStr	Pointer to the string you want to send.

Returns: None

Definition at line 206 of file uart.c.

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void USART_ClearFlag	(	USART_TypeDef *	USARTx,
		uint16_t	USART_FLAG
	)

Clears the USARTx's pending flags.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_FLAG	specifies the flag to clear. This parameter can be any combination of the following values: USART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5). USART_FLAG_LBD: LIN Break detection flag. USART_FLAG_TC: Transmission Complete flag. USART_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 (USART_GetFlagStatus()) followed by a read operation to USART_DR register (USART_ReceiveData()).; RXNE flag can be also cleared by a read to the USART_DR register (USART_ReceiveData()).; TC flag can be also cleared by software sequence: a read operation to USART_SR register (USART_GetFlagStatus()) followed by a write operation to USART_DR register (USART_SendData()).; TXE flag is cleared only by a write to the USART_DR register (USART_SendData()).

Return values

None

Definition at line 1344 of file stm32f4xx_usart.c.

void USART_ClearITPendingBit	(	USART_TypeDef *	USARTx,
		uint16_t	USART_IT
	)

Clears the USARTx's interrupt pending bits.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_IT	specifies the interrupt pending bit to clear. This parameter can be one of the following values: USART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) USART_IT_LBD: LIN Break detection interrupt USART_IT_TC: Transmission complete interrupt. USART_IT_RXNE: Receive Data register not empty interrupt.

Note: PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun error) and IDLE (Idle line detected) pending bits are cleared by software sequence: a read operation to USART_SR register (USART_GetITStatus()) followed by a read operation to USART_DR register (USART_ReceiveData()).; RXNE pending bit can be also cleared by a read to the USART_DR register (USART_ReceiveData()).; TC pending bit can be also cleared by software sequence: a read operation to USART_SR register (USART_GetITStatus()) followed by a write operation to USART_DR register (USART_SendData()).; TXE pending bit is cleared only by a write to the USART_DR register (USART_SendData()).

Return values

None

Definition at line 1452 of file stm32f4xx_usart.c.

void USART_ClockInit	(	USART_TypeDef *	USARTx,
		USART_ClockInitTypeDef *	USART_ClockInitStruct
	)

Initializes the USARTx peripheral Clock according to the specified parameters in the USART_ClockInitStruct .

Parameters

USARTx	where x can be 1, 2, 3 or 6 to select the USART peripheral.
USART_ClockInitStruct	pointer to a USART_ClockInitTypeDef structure that contains the configuration information for the specified USART peripheral.

Note: The Smart Card and Synchronous modes are not available for UART4 and UART5.

Return values

None

Definition at line 379 of file stm32f4xx_usart.c.

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void USART_ClockStructInit ( USART_ClockInitTypeDef * USART_ClockInitStruct )

Fills each USART_ClockInitStruct member with its default value.

Parameters

USART_ClockInitStruct pointer to a USART_ClockInitTypeDef structure which will be initialized.

Return values

None

Definition at line 410 of file stm32f4xx_usart.c.

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void USART_Cmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables the specified USART peripheral.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
NewState	new state of the USARTx peripheral. This parameter can be: ENABLE or DISABLE.

Return values

None

Examples:: usart_interrupt.c.

Definition at line 427 of file stm32f4xx_usart.c.

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void USART_DeInit ( USART_TypeDef * USARTx )

Deinitializes the USARTx peripheral registers to their default reset values.

Parameters

USARTx where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.

Return values

None

Definition at line 187 of file stm32f4xx_usart.c.

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void USART_DMACmd	(	USART_TypeDef *	USARTx,
		uint16_t	USART_DMAReq,
		FunctionalState	NewState
	)

Enables or disables the USART's DMA interface.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_DMAReq	specifies the DMA request. This parameter can be any combination of the following values: USART_DMAReq_Tx: USART DMA transmit request USART_DMAReq_Rx: USART DMA receive request
NewState	new state of the DMA Request sources. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 1099 of file stm32f4xx_usart.c.

FlagStatus USART_GetFlagStatus	(	USART_TypeDef *	USARTx,
		uint16_t	USART_FLAG
	)

Checks whether the specified USART flag is set or not.

Parameters

USARTx where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.

USART_FLAG

specifies the flag to check. This parameter can be one of the following values:

USART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5)
USART_FLAG_LBD: LIN Break detection flag
USART_FLAG_TXE: Transmit data register empty flag
USART_FLAG_TC: Transmission Complete flag
USART_FLAG_RXNE: Receive data register not empty flag
USART_FLAG_IDLE: Idle Line detection flag
USART_FLAG_ORE: OverRun Error flag
USART_FLAG_NE: Noise Error flag
USART_FLAG_FE: Framing Error flag
USART_FLAG_PE: Parity Error flag

Return values

The	new state of USART_FLAG (SET or RESET).

Definition at line 1295 of file stm32f4xx_usart.c.

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ITStatus USART_GetITStatus	(	USART_TypeDef *	USARTx,
		uint16_t	USART_IT
	)

Checks whether the specified USART interrupt has occurred or not.

Parameters

USARTx where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.

USART_IT

specifies the USART interrupt source to check. This parameter can be one of the following values:

USART_IT_CTS: CTS change interrupt (not available for UART4 and UART5)
USART_IT_LBD: LIN Break detection interrupt
USART_IT_TXE: Transmit Data Register empty interrupt
USART_IT_TC: Transmission complete interrupt
USART_IT_RXNE: Receive Data register not empty interrupt
USART_IT_IDLE: Idle line detection interrupt
USART_IT_ORE_RX : OverRun Error interrupt if the RXNEIE bit is set
USART_IT_ORE_ER : OverRun Error interrupt if the EIE bit is set
USART_IT_NE: Noise Error interrupt
USART_IT_FE: Framing Error interrupt
USART_IT_PE: Parity Error interrupt

Return values

The	new state of USART_IT (SET or RESET).

Examples:: usart_interrupt.c.

Definition at line 1378 of file stm32f4xx_usart.c.

void USART_HalfDuplexCmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables the USART's Half Duplex communication.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
NewState	new state of the USART Communication. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 836 of file stm32f4xx_usart.c.

void USART_Init	(	USART_TypeDef *	USARTx,
		USART_InitTypeDef *	USART_InitStruct
	)

Initializes the USARTx peripheral according to the specified parameters in the USART_InitStruct .

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_InitStruct	pointer to a USART_InitTypeDef structure that contains the configuration information for the specified USART peripheral.

Return values

None

Definition at line 246 of file stm32f4xx_usart.c.

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void USART_IrDACmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables the USART's IrDA interface.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
NewState	new state of the IrDA mode. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 1053 of file stm32f4xx_usart.c.

void USART_IrDAConfig	(	USART_TypeDef *	USARTx,
		uint16_t	USART_IrDAMode
	)

Configures the USART's IrDA interface.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_IrDAMode	specifies the IrDA mode. This parameter can be one of the following values: USART_IrDAMode_LowPower USART_IrDAMode_Normal

Return values

None

Definition at line 1035 of file stm32f4xx_usart.c.

void USART_ITConfig	(	USART_TypeDef *	USARTx,
		uint16_t	USART_IT,
		FunctionalState	NewState
	)

Enables or disables the specified USART interrupts.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_IT	specifies the USART interrupt sources to be enabled or disabled. This parameter can be one of the following values: USART_IT_CTS: CTS change interrupt USART_IT_LBD: LIN Break detection interrupt USART_IT_TXE: Transmit Data Register empty interrupt USART_IT_TC: Transmission complete interrupt USART_IT_RXNE: Receive Data register not empty interrupt USART_IT_IDLE: Idle line detection interrupt USART_IT_PE: Parity Error interrupt USART_IT_ERR: Error interrupt(Frame error, noise error, overrun error)
NewState	new state of the specified USARTx interrupts. This parameter can be: ENABLE or DISABLE.

Return values

None

Examples:: usart_interrupt.c.

Definition at line 1231 of file stm32f4xx_usart.c.

void USART_LINBreakDetectLengthConfig	(	USART_TypeDef *	USARTx,
		uint16_t	USART_LINBreakDetectLength
	)

Sets the USART LIN Break detection length.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_LINBreakDetectLength	specifies the LIN break detection length. This parameter can be one of the following values: USART_LINBreakDetectLength_10b: 10-bit break detection USART_LINBreakDetectLength_11b: 11-bit break detection

Return values

None

Definition at line 741 of file stm32f4xx_usart.c.

void USART_LINCmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables the USART's LIN mode.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
NewState	new state of the USART LIN mode. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 759 of file stm32f4xx_usart.c.

void USART_OneBitMethodCmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables the USART's one bit sampling method.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
NewState	new state of the USART one bit sampling method. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 500 of file stm32f4xx_usart.c.

void USART_OverSampling8Cmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables the USART's 8x oversampling mode.

Note: This function has to be called before calling USART_Init() function in order to have correct baudrate Divider value.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
NewState	new state of the USART 8x oversampling mode. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 474 of file stm32f4xx_usart.c.

uint16_t USART_ReceiveData ( USART_TypeDef * USARTx )

Returns the most recent received data by the USARTx peripheral.

Parameters

USARTx where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.

Return values

The	received data.

Examples:: usart_interrupt.c.

Definition at line 573 of file stm32f4xx_usart.c.

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void USART_ReceiverWakeUpCmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Determines if the USART is in mute mode or not.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
NewState	new state of the USART mute mode. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 645 of file stm32f4xx_usart.c.

void USART_SendBreak ( USART_TypeDef * USARTx )

Transmits break characters.

Parameters

USARTx where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.

Return values

None

Definition at line 783 of file stm32f4xx_usart.c.

void USART_SendData	(	USART_TypeDef *	USARTx,
		uint16_t	Data
	)

Transmits single data through the USARTx peripheral.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
Data	the data to transmit.

Return values

None

Examples:: usart_interrupt.c.

Definition at line 557 of file stm32f4xx_usart.c.

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void USART_SetAddress	(	USART_TypeDef *	USARTx,
		uint8_t	USART_Address
	)

Sets the address of the USART node.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_Address	Indicates the address of the USART node.

Return values

None

Definition at line 625 of file stm32f4xx_usart.c.

void USART_SetGuardTime	(	USART_TypeDef *	USARTx,
		uint8_t	USART_GuardTime
	)

Sets the specified USART guard time.

Parameters

USARTx	where x can be 1, 2, 3 or 6 to select the USART or UART peripheral.
USART_GuardTime	specifies the guard time.

Return values

None

Definition at line 920 of file stm32f4xx_usart.c.

void USART_SetPrescaler	(	USART_TypeDef *	USARTx,
		uint8_t	USART_Prescaler
	)

Sets the system clock prescaler.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_Prescaler	specifies the prescaler clock.

Note: The function is used for IrDA mode with UART4 and UART5.

Return values

None

Definition at line 453 of file stm32f4xx_usart.c.

void USART_SmartCardCmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables the USART's Smart Card mode.

Parameters

USARTx	where x can be 1, 2, 3 or 6 to select the USART or UART peripheral.
NewState	new state of the Smart Card mode. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 939 of file stm32f4xx_usart.c.

void USART_SmartCardNACKCmd	(	USART_TypeDef *	USARTx,
		FunctionalState	NewState
	)

Enables or disables NACK transmission.

Parameters

USARTx	where x can be 1, 2, 3 or 6 to select the USART or UART peripheral.
NewState	new state of the NACK transmission. This parameter can be: ENABLE or DISABLE.

Return values

None

Definition at line 964 of file stm32f4xx_usart.c.

void USART_StructInit ( USART_InitTypeDef * USART_InitStruct )

Fills each USART_InitStruct member with its default value.

Parameters

USART_InitStruct pointer to a USART_InitTypeDef structure which will be initialized.

Return values

None

Examples:: usart.c, and usart_interrupt.c.

Definition at line 359 of file stm32f4xx_usart.c.

void USART_WakeUpConfig	(	USART_TypeDef *	USARTx,
		uint16_t	USART_WakeUp
	)

Selects the USART WakeUp method.

Parameters

USARTx	where x can be 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or UART peripheral.
USART_WakeUp	specifies the USART wakeup method. This parameter can be one of the following values: USART_WakeUp_IdleLine: WakeUp by an idle line detection USART_WakeUp_AddressMark: WakeUp by an address mark

Return values

None

Definition at line 672 of file stm32f4xx_usart.c.

Variable Documentation

CARME_Port_Pin_t CARME_UART_Port_Pin[]

static

Initial value:

= {
        
        { GPIOA, GPIO_Pin_9, GPIO_Mode_AF, GPIO_AF_USART1 },    
        { GPIOA, GPIO_Pin_10, GPIO_Mode_AF, GPIO_AF_USART1 },   
        { GPIOA, GPIO_Pin_11, GPIO_Mode_AF, GPIO_AF_USART1 },   
        { GPIOA, GPIO_Pin_12, GPIO_Mode_AF, GPIO_AF_USART1 },   
        { GPIOH, GPIO_Pin_13, GPIO_Mode_OUT },                  
        { GPIOH, GPIO_Pin_14, GPIO_Mode_IN },                   
        { GPIOH, GPIO_Pin_15, GPIO_Mode_IN },                   
        
        { GPIOB, GPIO_Pin_10, GPIO_Mode_AF, GPIO_AF_USART3 },   
        { GPIOB, GPIO_Pin_11, GPIO_Mode_AF, GPIO_AF_USART3 },   
        { GPIOH, GPIO_Pin_9, GPIO_Mode_IN },                    
        { GPIOH, GPIO_Pin_6, GPIO_Mode_OUT }                    
}

UART Port and Pin association.

Definition at line 98 of file uart.c.

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