Description

Extended Universal Synchronous/Asynchronous Receiver/Transmitter.

Data Structures
struct	EUSART_AdvancedInit_TypeDef
	Advanced initialization structure.

struct	EUSART_UartInit_TypeDef
	Initialization structure.

struct	EUSART_IrDAInit_TypeDef
	IrDA Initialization structure.

struct	EUSART_PrsTriggerInit_TypeDef
	PRS Trigger initialization structure.

Functions
void	EUSART_UartInitHf (EUSART_TypeDef eusart, const EUSART_UartInit_TypeDef init)
	Initializes the EUSART when used in UART mode with the high frequency clock.

void	EUSART_UartInitLf (EUSART_TypeDef eusart, const EUSART_UartInit_TypeDef init)
	Initializes the EUSART when used in UART mode with the low frequency clock.

void	EUSART_IrDAInit (EUSART_TypeDef eusart, const EUSART_IrDAInit_TypeDef irdaInit)
	Initializes the EUSART when used in IrDA mode with the high or low frequency clock.

void	EUSART_Reset (EUSART_TypeDef *eusart)
	Configures the EUSART to its reset state.

void	EUSART_Enable (EUSART_TypeDef *eusart, EUSART_Enable_TypeDef enable)
	Enables/disables the EUSART receiver and/or transmitter.

uint8_t	EUSART_Rx (EUSART_TypeDef *eusart)
	Receives one 8 bit frame, (or part of 9 bit frame).

uint16_t	EUSART_RxExt (EUSART_TypeDef *eusart)
	Receives one 8-16 bit frame with extended information.

void	EUSART_Tx (EUSART_TypeDef *eusart, uint8_t data)
	Transmits one frame.

void	EUSART_TxExt (EUSART_TypeDef *eusart, uint16_t data)
	Transmits one 8-9 bit frame with extended control.

void	EUSART_BaudrateSet (EUSART_TypeDef *eusart, uint32_t refFreq, uint32_t baudrate)
	Configures the baudrate (or as close as possible to a specified baudrate).

uint32_t	EUSART_BaudrateGet (EUSART_TypeDef *eusart)
	Gets the current baudrate.

void	EUSART_RxBlock (EUSART_TypeDef *eusart, EUSART_BlockRx_TypeDef enable)
	Enables/Disables reception operation until the configured start frame is received.

void	EUSART_TxTristateSet (EUSART_TypeDef *eusart, EUSART_TristateTx_TypeDef enable)
	Enables/Disables the tristating of the transmitter output.

void	EUSART_PrsTriggerEnable (EUSART_TypeDef eusart, const EUSART_PrsTriggerInit_TypeDef init)
	Initializes the automatic enabling of transmissions and/or reception using the PRS as a trigger.

uint32_t	EUSART_StatusGet (EUSART_TypeDef *eusart)
	Gets EUSART STATUS register.

void	EUSART_IntClear (EUSART_TypeDef *eusart, uint32_t flags)
	Clears one or more pending EUSART interrupts.

void	EUSART_IntDisable (EUSART_TypeDef *eusart, uint32_t flags)
	Disables one or more EUSART interrupts.

void	EUSART_IntEnable (EUSART_TypeDef *eusart, uint32_t flags)
	Enables one or more EUSART interrupts.

uint32_t	EUSART_IntGet (EUSART_TypeDef *eusart)
	Gets pending EUSART interrupt flags.

uint32_t	EUSART_IntGetEnabled (EUSART_TypeDef *eusart)
	Gets enabled and pending EUSART interrupt flags.

void	EUSART_IntSet (EUSART_TypeDef *eusart, uint32_t flags)
	Sets one or more pending EUSART interrupts from SW.

Macros
#define	EUSART_UART_INIT_DEFAULT_HF
	Default configuration for EUSART initialization structure in UART mode with high-frequency clock.

#define	EUSART_DEFAULT_START_FRAME 0x00u
	Default start frame configuration, i.e. feature disabled.

#define	EUSART_ADVANCED_INIT_DEFAULT
	Default configuration for EUSART advanced initialization structure.

#define	EUSART_UART_INIT_DEFAULT_LF
	Default configuration for EUSART initialization structure in UART mode with low-frequency clock.

#define	EUSART_IRDA_INIT_DEFAULT_HF
	Default configuration for EUSART initialization structure in IrDA mode with high-frequency clock.

#define	EUSART_IRDA_INIT_DEFAULT_LF
	Default configuration for EUSART initialization structure in IrDA mode with low-frequency clock.

Typedefs
typedef uint8_t	EUSART_PrsChannel_TypeDef
	PRS Channel type.

Enumerations
enum	EUSART_Enable_TypeDef { eusartDisable = 0x0, eusartEnableRx = (EUSART_CMD_RXEN \| EUSART_CMD_TXDIS), eusartEnableTx = (EUSART_CMD_TXEN \| EUSART_CMD_RXDIS), eusartEnable = (EUSART_CMD_RXEN \| EUSART_CMD_TXEN) }
	Enable selection.

enum	EUSART_Databits_TypeDef { eusartDataBits7 = EUSART_FRAMECFG_DATABITS_SEVEN, eusartDataBits8 = EUSART_FRAMECFG_DATABITS_EIGHT, eusartDataBits9 = EUSART_FRAMECFG_DATABITS_NINE }
	Data bit selection.

enum	EUSART_Parity_TypeDef { eusartNoParity = EUSART_FRAMECFG_PARITY_NONE, eusartEvenParity = EUSART_FRAMECFG_PARITY_EVEN, eusartOddParity = EUSART_FRAMECFG_PARITY_ODD }
	Parity selection.

enum	EUSART_Stopbits_TypeDef { eusartStopbits0p5 = EUSART_FRAMECFG_STOPBITS_HALF, eusartStopbits1p5 = EUSART_FRAMECFG_STOPBITS_ONEANDAHALF, eusartStopbits1 = EUSART_FRAMECFG_STOPBITS_ONE, eusartStopbits2 = EUSART_FRAMECFG_STOPBITS_TWO }
	Stop bits selection.

enum	EUSART_OVS_TypeDef { eusartOVS16 = EUSART_CFG0_OVS_X16, eusartOVS8 = EUSART_CFG0_OVS_X8, eusartOVS6 = EUSART_CFG0_OVS_X6, eusartOVS4 = EUSART_CFG0_OVS_X4, eusartOVS0 = EUSART_CFG0_OVS_DISABLE }
	Oversampling selection, used for asynchronous operation.

enum	EUSART_HwFlowControl_TypeDef { eusartHwFlowControlNone = 0, eusartHwFlowControlCts , eusartHwFlowControlRts , eusartHwFlowControlCtsAndRts }
	HW flow control config.

enum	EUSART_LoopbackEnable_TypeDef { eusartLoopbackEnable = EUSART_CFG0_LOOPBK, eusartLoopbackDisable = _EUSART_CFG0_RESETVALUE }
	Loopback enable.

enum	EUSART_MajorityVote_TypeDef { eusartMajorityVoteEnable = EUSART_CFG0_MVDIS_DEFAULT, eusartMajorityVoteDisable = EUSART_CFG0_MVDIS }
	Majority vote enable.

enum	EUSART_BlockRx_TypeDef { eusartBlockRxEnable = EUSART_CMD_RXBLOCKEN, eusartBlockRxDisable = EUSART_CMD_RXBLOCKDIS }
	Block reception enable.

enum	EUSART_TristateTx_TypeDef { eusartTristateTxEnable = EUSART_CMD_TXTRIEN, eusartTristateTxDisable = EUSART_CMD_TXTRIDIS }
	Tx output tristate enable.

enum	EUSART_IrDARxFilterEnable_TypeDef { eusartIrDARxFilterEnable = EUSART_IRHFCFG_IRHFFILT_ENABLE, eusartIrDARxFilterDisable = EUSART_IRHFCFG_IRHFFILT_DISABLE }
	IrDA filter enable.

enum	EUSART_IrDAPulseWidth_Typedef { eusartIrDAPulseWidthOne = EUSART_IRHFCFG_IRHFPW_ONE, eusartIrDAPulseWidthTwo = EUSART_IRHFCFG_IRHFPW_TWO, eusartIrDAPulseWidthThree = EUSART_IRHFCFG_IRHFPW_THREE, eusartIrDAPulseWidthFour = EUSART_IRHFCFG_IRHFPW_FOUR }
	Pulse width selection for IrDA mode.

enum	EUSART_PrsTriggerEnable_TypeDef { eusartPrsTriggerDisable = 0x0, eusartPrsTriggerEnableRx = EUSART_TRIGCTRL_RXTEN, eusartPrsTriggerEnableTx = EUSART_TRIGCTRL_TXTEN, eusartPrsTriggerEnableRxTx = (EUSART_TRIGCTRL_RXTEN \| EUSART_TRIGCTRL_TXTEN) }
	PRS trigger enable.

enum	EUSART_InvertIO_TypeDef { eusartInvertIODisable = (EUSART_CFG0_RXINV_DISABLE \| EUSART_CFG0_TXINV_DISABLE), eusartInvertRxEnable = EUSART_CFG0_RXINV_ENABLE, eusartInvertTxEnable = EUSART_CFG0_TXINV_ENABLE, eusartInvertIOEnable = (EUSART_CFG0_RXINV_ENABLE \| EUSART_CFG0_TXINV_ENABLE) }
	IO polarity selection.

Variables
EUSART_HwFlowControl_TypeDef	EUSART_AdvancedInit_TypeDef::hwFlowControl
	Hardware flow control mode.

bool	EUSART_AdvancedInit_TypeDef::collisionDetectEnable
	Enable the collision Detection feature.

bool	EUSART_AdvancedInit_TypeDef::msbFirst
	If true, data will be send with most significant bit first.

EUSART_InvertIO_TypeDef	EUSART_AdvancedInit_TypeDef::invertIO
	Enable inversion of Rx and/or Tx signals.

bool	EUSART_AdvancedInit_TypeDef::dmaWakeUpOnRx
	Enable the automatic wake up from EM2 to EM1 for DMA Rx operation.

bool	EUSART_AdvancedInit_TypeDef::dmaWakeUpOnTx
	Enable the automatic wake up from EM2 to EM1 for DMA Tx operation.

bool	EUSART_AdvancedInit_TypeDef::dmaHaltOnError
	Enable DMA requests blocking while framing or parity errors.

uint8_t	EUSART_AdvancedInit_TypeDef::startFrame
	Start frame that will enable Rx operation. 0x00 Disable this feature.

bool	EUSART_AdvancedInit_TypeDef::txAutoTristate
	Enable automatic tristating of transmistter output when there is nothing to transmit.

bool	EUSART_AdvancedInit_TypeDef::prsRxEnable
	Enable EUSART capability to use a PRS channel as an input data line for the receiver.

EUSART_PrsChannel_TypeDef	EUSART_AdvancedInit_TypeDef::prsRxChannel
	PRS Channel used to transmit data from PRS to the EUSART.

bool	EUSART_AdvancedInit_TypeDef::multiProcessorEnable
	Enable Multiprocessor mode. Address and data filtering using the 9th bit.

bool	EUSART_AdvancedInit_TypeDef::multiProcessorAddressBitHigh
	Multiprocessor address bit value. If true, 9th bit of address frame must bit 1, 0 otherwise.

EUSART_Enable_TypeDef	EUSART_UartInit_TypeDef::enable
	Specifies whether TX and/or RX will be enabled when initialization completes.

uint32_t	EUSART_UartInit_TypeDef::refFreq
	EUSART reference clock assumed when configuring baud rate setup.

uint32_t	EUSART_UartInit_TypeDef::baudrate
	Desired baud rate.

EUSART_OVS_TypeDef	EUSART_UartInit_TypeDef::oversampling
	Oversampling used.

EUSART_Databits_TypeDef	EUSART_UartInit_TypeDef::databits
	Number of data bits in frame.

EUSART_Parity_TypeDef	EUSART_UartInit_TypeDef::parity
	Parity mode to use.

EUSART_Stopbits_TypeDef	EUSART_UartInit_TypeDef::stopbits
	Number of stop bits to use.

EUSART_MajorityVote_TypeDef	EUSART_UartInit_TypeDef::majorityVote
	Majority Vote can be disabled for 16x, 8x and 6x oversampling modes.

EUSART_LoopbackEnable_TypeDef	EUSART_UartInit_TypeDef::loopbackEnable
	Enable Loop Back configuration.

EUSART_AdvancedInit_TypeDef *	EUSART_UartInit_TypeDef::advancedSettings
	Advanced initialization structure pointer. It can be NULL.

EUSART_UartInit_TypeDef	EUSART_IrDAInit_TypeDef::init
	General EUSART initialization structure.

bool	EUSART_IrDAInit_TypeDef::irDALowFrequencyEnable
	Enable the IrDA low frequency mode. Only Rx operation are enabled.

EUSART_IrDARxFilterEnable_TypeDef	EUSART_IrDAInit_TypeDef::irDARxFilterEnable
	Set to enable filter on IrDA demodulator.

EUSART_IrDAPulseWidth_Typedef	EUSART_IrDAInit_TypeDef::irDAPulseWidth
	Configure the pulse width generated by the IrDA modulator as a fraction of the configured EUSART bit period.

EUSART_PrsTriggerEnable_TypeDef	EUSART_PrsTriggerInit_TypeDef::prs_trigger_enable
	PRS to EUSART trigger mode.

EUSART_PrsChannel_TypeDef	EUSART_PrsTriggerInit_TypeDef::prs_trigger_channel
	PRS channel to be used to trigger auto transmission.

Function Documentation

◆ EUSART_UartInitHf()

void EUSART_UartInitHf	(	EUSART_TypeDef *	`eusart,`
		const EUSART_UartInit_TypeDef *	`init`
	)

Initializes the EUSART when used in UART mode with the high frequency clock.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`init`	A pointer to the initialization structure.

Initializes the EUSART when used in UART mode with the high frequency clock.

◆ EUSART_UartInitLf()

void EUSART_UartInitLf	(	EUSART_TypeDef *	`eusart,`
		const EUSART_UartInit_TypeDef *	`init`
	)

Initializes the EUSART when used in UART mode with the low frequency clock.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`init`	A pointer to the initialization structure.

Initializes the EUSART when used in UART mode with the low frequency clock.

Note: (1) When EUSART oversampling is set to eusartOVS0 (Disable), the peripheral clock frequency must be at least three times higher than the chosen baud rate. In LF, max input clock is 32768 (LFXO or LFRCO), thus 32768 / 3 ~ 9600 baudrate.

◆ EUSART_IrDAInit()

void EUSART_IrDAInit	(	EUSART_TypeDef *	`eusart,`
		const EUSART_IrDAInit_TypeDef *	`irdaInit`
	)

Initializes the EUSART when used in IrDA mode with the high or low frequency clock.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`irdaInit`	A pointer to the initialization structure.

◆ EUSART_Reset()

void EUSART_Reset ( EUSART_TypeDef * eusart )

Configures the EUSART to its reset state.

Parameters

eusart Pointer to the EUSART peripheral register block.

Configures the EUSART to its reset state.

◆ EUSART_Enable()

void EUSART_Enable	(	EUSART_TypeDef *	`eusart,`
		EUSART_Enable_TypeDef	`enable`
	)

Enables/disables the EUSART receiver and/or transmitter.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`enable`	Select the status for the receiver and transmitter.

◆ EUSART_Rx()

uint8_t EUSART_Rx ( EUSART_TypeDef * eusart )

Receives one 8 bit frame, (or part of 9 bit frame).

Parameters

eusart Pointer to the EUSART peripheral register block.

Note: This function is normally used to receive one frame when operating with frame length of 8 bits. See EUSART_RxExt() for reception of 9 bit frames. Notice that possible parity/stop bits are not considered a part of the specified frame bit length.; This function will stall if buffer is empty until data is received.

Returns: Data received.

◆ EUSART_RxExt()

uint16_t EUSART_RxExt ( EUSART_TypeDef * eusart )

Receives one 8-16 bit frame with extended information.

Parameters

eusart Pointer to the EUSART peripheral register block.

Note: This function is normally used to receive one frame and additional RX status information.; This function will stall if buffer is empty until data is received.

Returns: Data received and receive status.

Receives one 8-16 bit frame with extended information.

◆ EUSART_Tx()

void EUSART_Tx	(	EUSART_TypeDef *	`eusart,`
		uint8_t	`data`
	)

Transmits one frame.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`data`	Data to transmit.

Note: Depending on the frame length configuration, 8 (least significant) bits from data are transmitted. If the frame length is 9, 8 bits are transmitted from data . See EUSART_TxExt() for transmitting 9 bit frame with full control of all 9 bits.; This function will stall if the 4 frame FIFO is full, until the buffer becomes available.

◆ EUSART_TxExt()

void EUSART_TxExt	(	EUSART_TypeDef *	`eusart,`
		uint16_t	`data`
	)

Transmits one 8-9 bit frame with extended control.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`data`	Data to transmit.

Note: Possible parity/stop bits in asynchronous mode are not considered part of a specified frame bit length.; This function will stall if buffer is full until the buffer becomes available.

◆ EUSART_BaudrateSet()

void EUSART_BaudrateSet	(	EUSART_TypeDef *	`eusart,`
		uint32_t	`refFreq,`
		uint32_t	`baudrate`
	)

Configures the baudrate (or as close as possible to a specified baudrate).

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`refFreq`	The EUSART reference clock frequency in Hz that will be used. If set to 0, the currently configured peripheral clock is used.
`baudrate`	A baudrate to try to achieve.

Configures the baudrate (or as close as possible to a specified baudrate).

Note: (1) When the oversampling is disabled, the peripheral clock frequency must be at least three times higher than the chosen baud rate.

◆ EUSART_BaudrateGet()

uint32_t EUSART_BaudrateGet ( EUSART_TypeDef * eusart )

Gets the current baudrate.

Parameters

eusart Pointer to the EUSART peripheral register block.

Returns: The current baudrate.

◆ EUSART_RxBlock()

void EUSART_RxBlock	(	EUSART_TypeDef *	`eusart,`
		EUSART_BlockRx_TypeDef	`enable`
	)

Enables/Disables reception operation until the configured start frame is received.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`enable`	Select the receiver blocking status.

Enables/Disables reception operation until the configured start frame is received.

◆ EUSART_TxTristateSet()

void EUSART_TxTristateSet	(	EUSART_TypeDef *	`eusart,`
		EUSART_TristateTx_TypeDef	`enable`
	)

Enables/Disables the tristating of the transmitter output.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`enable`	Select the transmitter tristate status.

◆ EUSART_PrsTriggerEnable()

void EUSART_PrsTriggerEnable	(	EUSART_TypeDef *	`eusart,`
		const EUSART_PrsTriggerInit_TypeDef *	`init`
	)

Initializes the automatic enabling of transmissions and/or reception using the PRS as a trigger.

Note: Initialize EUSART with sl_eusart_initHf() or sl_eusart_initLf() before enabling the PRS trigger.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`init`	Pointer to the initialization structure.

◆ EUSART_StatusGet()

uint32_t EUSART_StatusGet ( EUSART_TypeDef * eusart )

inline

Gets EUSART STATUS register.

Parameters

eusart Pointer to the EUSART peripheral register block.

Returns: STATUS register value.

◆ EUSART_IntClear()

void EUSART_IntClear	(	EUSART_TypeDef *	`eusart,`
		uint32_t	`flags`
	)

inline

Clears one or more pending EUSART interrupts.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`flags`	Pending EUSART interrupt source to clear. Use a bitwise logic OR combination of valid interrupt flags for EUSART module (EUSART_IF_nnn).

◆ EUSART_IntDisable()

void EUSART_IntDisable	(	EUSART_TypeDef *	`eusart,`
		uint32_t	`flags`
	)

inline

Disables one or more EUSART interrupts.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`flags`	Pending EUSART interrupt source to clear. Use a bitwise logic OR combination of valid interrupt flags for EUSART module (EUSART_IF_nnn).

◆ EUSART_IntEnable()

void EUSART_IntEnable	(	EUSART_TypeDef *	`eusart,`
		uint32_t	`flags`
	)

inline

Enables one or more EUSART interrupts.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`flags`	Pending EUSART interrupt source to clear. Use a bitwise logic OR combination of valid interrupt flags for EUSART module (EUSART_IF_nnn).

◆ EUSART_IntGet()

uint32_t EUSART_IntGet ( EUSART_TypeDef * eusart )

inline

Gets pending EUSART interrupt flags.

Parameters

eusart Pointer to the EUSART peripheral register block.

Returns: Pending EUSART interrupt sources.

◆ EUSART_IntGetEnabled()

uint32_t EUSART_IntGetEnabled ( EUSART_TypeDef * eusart )

inline

Gets enabled and pending EUSART interrupt flags.

Useful for handling more interrupt sources in the same interrupt handler.

Parameters

eusart Pointer to the EUSART peripheral register block.

Returns: Pending and enabled EUSART interrupt sources.

◆ EUSART_IntSet()

void EUSART_IntSet	(	EUSART_TypeDef *	`eusart,`
		uint32_t	`flags`
	)

inline

Sets one or more pending EUSART interrupts from SW.

Parameters

`eusart`	Pointer to the EUSART peripheral register block.
`flags`	Interrupt source(s) to set to pending. Use a bitwise logic OR combination of valid interrupt flags for EUSART module (EUSART_IF_nnn).

Macro Definition Documentation

◆ EUSART_UART_INIT_DEFAULT_HF

#define EUSART_UART_INIT_DEFAULT_HF

Value:

         {                                                                                                   \
        
         eusartEnable,
         
          /* Enable RX/TX when initialization completed. */
         
         \
        
         0,
         
          /* Use current configured reference clock for configuring baud rate.*/
         
         \
        
         115200,
         
          /* 115200 bits/s. */
         
         \
        
         eusartOVS16,
         
          /* Oversampling x16. */
         
         \
        
         eusartDataBits8,
         
          /* 8 data bits. */
         
         \
        
         eusartNoParity,
         
          /* No parity. */
         
         \
        
         eusartStopbits1,
         
          /* 1 stop bit. */
         
         \
        
         eusartMajorityVoteEnable,
         
          /* Majority vote enabled. */
         
         \
        
         eusartLoopbackDisable,
         
          /* Loop back disabled. */
         
         \
        
         NULL,
         
          /* Default advanced settings. */
         
         \
        
         }

Default configuration for EUSART initialization structure in UART mode with high-frequency clock.

◆ EUSART_DEFAULT_START_FRAME

#define EUSART_DEFAULT_START_FRAME 0x00u

Default start frame configuration, i.e. feature disabled.

◆ EUSART_ADVANCED_INIT_DEFAULT

#define EUSART_ADVANCED_INIT_DEFAULT

Value:

         {                                                                                          \
        
         eusartHwFlowControlNone,
         
          /* Flow control disabled. */
         
         \
        
         false,
         
          /* Collision dectection disabled. */
         
         \
        
         false,
         
          /* Data is sent with the least significant bit first. */
         
         \
        
         eusartInvertIODisable,
         
          /* Rx and Tx signal active high. */
         
         \
        
         false,
         
          /* No DMA wake up on reception. */
         
         \
        
         false,
         
          /* No DMA wake up on transmission. */
         
         \
        
         false,
         
          /* Halt DMA on error disabled. */
         
         \
        
         EUSART_DEFAULT_START_FRAME,
         
          /* No start frame.  */
         
         \
        
         false,
         
          /* Tx auto tristate disabled. */
         
         \
        
         false,
         
          /* Do not use PRS signal as Rx signal.*/
         
         \
        
         (
         
          EUSART_PrsChannel_TypeDef
         
         ) 0u,
         
          /* EUSART Rx connected to prs channel 0. */
         
         \
        
          false
         
         ,
         
          /* Multiprocessor mode disabled. */
         
         \
        
          false
         
         ,
         
          /* Multiprocessor address bit : 0.*/
         
         \
        
         }

Default configuration for EUSART advanced initialization structure.

◆ EUSART_UART_INIT_DEFAULT_LF

#define EUSART_UART_INIT_DEFAULT_LF

Value:

         {                                                                                                    \
        
         eusartEnable,
         
          /* Enable RX/TX when initialization completed. */
         
         \
        
         0,
         
          /* Use current configured reference clock for configuring baud rate.*/
         
         \
        
         9600,
         
          /* 9600 bits/s. */
         
         \
        
         eusartOVS0,
         
          /* Oversampling disabled. */
         
         \
        
         eusartDataBits8,
         
          /* 8 data bits. */
         
         \
        
         eusartNoParity,
         
          /* No parity. */
         
         \
        
         eusartStopbits1,
         
          /* 1 stop bit. */
         
         \
        
         eusartMajorityVoteDisable,
         
          /* Majority vote enabled. */
         
         \
        
         eusartLoopbackDisable,
         
          /* Loop back disabled. */
         
         \
        
         NULL,
         
          /* Default advanced settings. */
         
         \
        
         }

Default configuration for EUSART initialization structure in UART mode with low-frequency clock.

◆ EUSART_IRDA_INIT_DEFAULT_HF

#define EUSART_IRDA_INIT_DEFAULT_HF

Value:

         {                                                                          \
        
         EUSART_UART_INIT_DEFAULT_HF,
         
          /* Default high frequency configuration. */
         
         \
        
         false,
         
          /* Disable IrDA low frequency mode. */
         
         \
        
         eusartIrDARxFilterDisable,
         
          /* Rx Filter disabled. */
         
         \
        
         eusartIrDAPulseWidthOne,
         
          /* Pulse width is set to 1/16. */
         
         \
        
         }

Default configuration for EUSART initialization structure in IrDA mode with high-frequency clock.

◆ EUSART_IRDA_INIT_DEFAULT_LF

#define EUSART_IRDA_INIT_DEFAULT_LF

Value:

         {                                                                                                      \
        
         {                                                                                                    \
        
         eusartEnableRx,
         
          /* Enable RX when initialization completed (Tx not allowed). */
         
         \
        
         0,
         
          /* Use current configured reference clock for configuring baud rate.*/
         
         \
        
         9600,
         
          /* 9600 bits/s. */
         
         \
        
         eusartOVS0,
         
          /* Oversampling disabled. */
         
         \
        
         eusartDataBits8,
         
          /* 8 data bits. */
         
         \
        
         eusartNoParity,
         
          /* No parity. */
         
         \
        
         eusartStopbits1,
         
          /* 1 stop bit. */
         
         \
        
         eusartMajorityVoteDisable,
         
          /* Majority vote enabled. */
         
         \
        
         eusartLoopbackDisable,
         
          /* Loop back disabled. */
         
         \
        
         NULL,
         
          /* Default advanced settings. */
         
         \
        
         },                                                                                                   \
        
         true,
         
          /* Enable IrDA low frequency mode. */
         
         \
        
         eusartIrDARxFilterDisable,
         
          /* Rx Filter disabled. */
         
         \
        
         eusartIrDAPulseWidthOne,
         
          /* Pulse width is set to 1. */
         
         \
        
         }

Default configuration for EUSART initialization structure in IrDA mode with low-frequency clock.

Typedef Documentation

◆ EUSART_PrsChannel_TypeDef

typedef uint8_t EUSART_PrsChannel_TypeDef

PRS Channel type.

Enumeration Type Documentation

◆ EUSART_Enable_TypeDef

enum EUSART_Enable_TypeDef

Enable selection.

Enumerator
eusartDisable	Disable the peripheral.
eusartEnableRx	Enable receiver only, transmitter disabled.
eusartEnableTx	Enable transmitter only, receiver disabled.
eusartEnable	Enable both receiver and transmitter.

◆ EUSART_Databits_TypeDef

enum EUSART_Databits_TypeDef

Data bit selection.

Enumerator
eusartDataBits7	7 data bits.
eusartDataBits8	8 data bits.
eusartDataBits9	9 data bits.

◆ EUSART_Parity_TypeDef

enum EUSART_Parity_TypeDef

Parity selection.

Enumerator
eusartNoParity	No parity.
eusartEvenParity	Even parity.
eusartOddParity	Odd parity.

◆ EUSART_Stopbits_TypeDef

enum EUSART_Stopbits_TypeDef

Stop bits selection.

Enumerator
eusartStopbits0p5	0.5 stop bits.
eusartStopbits1p5	1.5 stop bits.
eusartStopbits1	1 stop bits.
eusartStopbits2	2 stop bits.

◆ EUSART_OVS_TypeDef

enum EUSART_OVS_TypeDef

Oversampling selection, used for asynchronous operation.

Enumerator
eusartOVS16	16x oversampling (normal).
eusartOVS8	8x oversampling.
eusartOVS6	6x oversampling.
eusartOVS4	4x oversampling.
eusartOVS0	Oversampling disabled.

◆ EUSART_HwFlowControl_TypeDef

enum EUSART_HwFlowControl_TypeDef

HW flow control config.

Enumerator
eusartHwFlowControlNone	No HW Flow Control.
eusartHwFlowControlCts	CTS HW Flow Control.
eusartHwFlowControlRts	RTS HW Flow Control.
eusartHwFlowControlCtsAndRts	CTS and RTS HW Flow Control.

◆ EUSART_LoopbackEnable_TypeDef

enum EUSART_LoopbackEnable_TypeDef

Loopback enable.

◆ EUSART_MajorityVote_TypeDef

enum EUSART_MajorityVote_TypeDef

Majority vote enable.

◆ EUSART_BlockRx_TypeDef

enum EUSART_BlockRx_TypeDef

Block reception enable.

◆ EUSART_TristateTx_TypeDef

enum EUSART_TristateTx_TypeDef

Tx output tristate enable.

◆ EUSART_IrDARxFilterEnable_TypeDef

enum EUSART_IrDARxFilterEnable_TypeDef

IrDA filter enable.

◆ EUSART_IrDAPulseWidth_Typedef

enum EUSART_IrDAPulseWidth_Typedef

Pulse width selection for IrDA mode.

Enumerator
eusartIrDAPulseWidthOne	IrDA pulse width is 1/16 for OVS=X16 and 1/8 for OVS=X8.
eusartIrDAPulseWidthTwo	IrDA pulse width is 2/16 for OVS=X16 and 2/8 for OVS=X8.
eusartIrDAPulseWidthThree	IrDA pulse width is 3/16 for OVS=X16 and 3/8 for OVS=X8.
eusartIrDAPulseWidthFour	IrDA pulse width is 4/16 for OVS=X16 and 4/8 for OVS=X8.

◆ EUSART_PrsTriggerEnable_TypeDef

enum EUSART_PrsTriggerEnable_TypeDef

PRS trigger enable.

Enumerator
eusartPrsTriggerDisable	Disable trigger on both receiver and transmitter.
eusartPrsTriggerEnableRx	Enable receive trigger only, transmit disabled.
eusartPrsTriggerEnableTx	Enable transmit trigger only, receive disabled.
eusartPrsTriggerEnableRxTx	Enable trigger on both receive and transmit.

◆ EUSART_InvertIO_TypeDef

enum EUSART_InvertIO_TypeDef

IO polarity selection.

Enumerator
eusartInvertIODisable	Disable inversion on both Rx and Tx signals.
eusartInvertRxEnable	Invert Rx signal, before receiver.
eusartInvertTxEnable	Invert Tx signal, after transmitter.
eusartInvertIOEnable	Enable trigger on both receive and transmit.

Variable Documentation

◆ hwFlowControl

EUSART_HwFlowControl_TypeDef EUSART_AdvancedInit_TypeDef::hwFlowControl

Hardware flow control mode.

◆ collisionDetectEnable

bool EUSART_AdvancedInit_TypeDef::collisionDetectEnable

Enable the collision Detection feature.

Internal (setting loopbackEnable) or external loopback must be done to use this feature.

◆ msbFirst

bool EUSART_AdvancedInit_TypeDef::msbFirst

If true, data will be send with most significant bit first.

◆ invertIO

EUSART_InvertIO_TypeDef EUSART_AdvancedInit_TypeDef::invertIO

Enable inversion of Rx and/or Tx signals.

◆ dmaWakeUpOnRx

bool EUSART_AdvancedInit_TypeDef::dmaWakeUpOnRx

Enable the automatic wake up from EM2 to EM1 for DMA Rx operation.

◆ dmaWakeUpOnTx

bool EUSART_AdvancedInit_TypeDef::dmaWakeUpOnTx

Enable the automatic wake up from EM2 to EM1 for DMA Tx operation.

◆ dmaHaltOnError

bool EUSART_AdvancedInit_TypeDef::dmaHaltOnError

Enable DMA requests blocking while framing or parity errors.

◆ startFrame

uint8_t EUSART_AdvancedInit_TypeDef::startFrame

Start frame that will enable Rx operation. 0x00 Disable this feature.

◆ txAutoTristate

bool EUSART_AdvancedInit_TypeDef::txAutoTristate

Enable automatic tristating of transmistter output when there is nothing to transmit.

◆ prsRxEnable

bool EUSART_AdvancedInit_TypeDef::prsRxEnable

Enable EUSART capability to use a PRS channel as an input data line for the receiver.

The configured Rx GPIO signal won't be routed to the EUSART receiver.

◆ prsRxChannel

EUSART_PrsChannel_TypeDef EUSART_AdvancedInit_TypeDef::prsRxChannel

PRS Channel used to transmit data from PRS to the EUSART.

◆ multiProcessorEnable

bool EUSART_AdvancedInit_TypeDef::multiProcessorEnable

Enable Multiprocessor mode. Address and data filtering using the 9th bit.

◆ multiProcessorAddressBitHigh

bool EUSART_AdvancedInit_TypeDef::multiProcessorAddressBitHigh

Multiprocessor address bit value. If true, 9th bit of address frame must bit 1, 0 otherwise.

◆ enable

EUSART_Enable_TypeDef EUSART_UartInit_TypeDef::enable

Specifies whether TX and/or RX will be enabled when initialization completes.

◆ refFreq

uint32_t EUSART_UartInit_TypeDef::refFreq

EUSART reference clock assumed when configuring baud rate setup.

Set to 0 if using currently configured reference clock.

◆ baudrate

uint32_t EUSART_UartInit_TypeDef::baudrate

Desired baud rate.

If set to 0, Auto Baud feature is enabled and the EUSART will wait for (0x55) frame to detect the Baudrate.

◆ oversampling

EUSART_OVS_TypeDef EUSART_UartInit_TypeDef::oversampling

Oversampling used.

◆ databits

EUSART_Databits_TypeDef EUSART_UartInit_TypeDef::databits

Number of data bits in frame.

◆ parity

EUSART_Parity_TypeDef EUSART_UartInit_TypeDef::parity

Parity mode to use.

◆ stopbits

EUSART_Stopbits_TypeDef EUSART_UartInit_TypeDef::stopbits

Number of stop bits to use.

◆ majorityVote

EUSART_MajorityVote_TypeDef EUSART_UartInit_TypeDef::majorityVote

Majority Vote can be disabled for 16x, 8x and 6x oversampling modes.

◆ loopbackEnable

EUSART_LoopbackEnable_TypeDef EUSART_UartInit_TypeDef::loopbackEnable

Enable Loop Back configuration.

◆ advancedSettings

EUSART_AdvancedInit_TypeDef * EUSART_UartInit_TypeDef::advancedSettings

Advanced initialization structure pointer. It can be NULL.

◆ init

EUSART_UartInit_TypeDef EUSART_IrDAInit_TypeDef::init

General EUSART initialization structure.

◆ irDALowFrequencyEnable

bool EUSART_IrDAInit_TypeDef::irDALowFrequencyEnable

Enable the IrDA low frequency mode. Only Rx operation are enabled.

◆ irDARxFilterEnable

EUSART_IrDARxFilterEnable_TypeDef EUSART_IrDAInit_TypeDef::irDARxFilterEnable

Set to enable filter on IrDA demodulator.

◆ irDAPulseWidth

EUSART_IrDAPulseWidth_Typedef EUSART_IrDAInit_TypeDef::irDAPulseWidth

Configure the pulse width generated by the IrDA modulator as a fraction of the configured EUSART bit period.

◆ prs_trigger_enable

EUSART_PrsTriggerEnable_TypeDef EUSART_PrsTriggerInit_TypeDef::prs_trigger_enable

PRS to EUSART trigger mode.

◆ prs_trigger_channel

EUSART_PrsChannel_TypeDef EUSART_PrsTriggerInit_TypeDef::prs_trigger_channel

PRS channel to be used to trigger auto transmission.

EUSART - Extended USART

Description

Data Structures

Functions

Macros

Typedefs

Enumerations

Variables

Function Documentation

◆ EUSART_UartInitHf()

◆ EUSART_UartInitLf()

◆ EUSART_IrDAInit()

◆ EUSART_Reset()

◆ EUSART_Enable()

◆ EUSART_Rx()

◆ EUSART_RxExt()

◆ EUSART_Tx()

◆ EUSART_TxExt()

◆ EUSART_BaudrateSet()

◆ EUSART_BaudrateGet()

◆ EUSART_RxBlock()

◆ EUSART_TxTristateSet()

◆ EUSART_PrsTriggerEnable()

◆ EUSART_StatusGet()

◆ EUSART_IntClear()

◆ EUSART_IntDisable()

◆ EUSART_IntEnable()

◆ EUSART_IntGet()

◆ EUSART_IntGetEnabled()

◆ EUSART_IntSet()

Macro Definition Documentation

◆ EUSART_UART_INIT_DEFAULT_HF

◆ EUSART_DEFAULT_START_FRAME

◆ EUSART_ADVANCED_INIT_DEFAULT

◆ EUSART_UART_INIT_DEFAULT_LF

◆ EUSART_IRDA_INIT_DEFAULT_HF

◆ EUSART_IRDA_INIT_DEFAULT_LF

Typedef Documentation

◆ EUSART_PrsChannel_TypeDef

Enumeration Type Documentation

◆ EUSART_Enable_TypeDef

◆ EUSART_Databits_TypeDef

◆ EUSART_Parity_TypeDef

◆ EUSART_Stopbits_TypeDef

◆ EUSART_OVS_TypeDef

◆ EUSART_HwFlowControl_TypeDef

◆ EUSART_LoopbackEnable_TypeDef

◆ EUSART_MajorityVote_TypeDef

◆ EUSART_BlockRx_TypeDef

◆ EUSART_TristateTx_TypeDef

◆ EUSART_IrDARxFilterEnable_TypeDef

◆ EUSART_IrDAPulseWidth_Typedef

◆ EUSART_PrsTriggerEnable_TypeDef

◆ EUSART_InvertIO_TypeDef

Variable Documentation

◆ hwFlowControl

◆ collisionDetectEnable

◆ msbFirst

◆ invertIO

◆ dmaWakeUpOnRx

◆ dmaWakeUpOnTx

◆ dmaHaltOnError

◆ startFrame

◆ txAutoTristate

◆ prsRxEnable

◆ prsRxChannel

◆ multiProcessorEnable

◆ multiProcessorAddressBitHigh

◆ enable

◆ refFreq

◆ baudrate

◆ oversampling

◆ databits

◆ parity

◆ stopbits

◆ majorityVote

◆ loopbackEnable

◆ advancedSettings

◆ init

◆ irDALowFrequencyEnable