Overview

This section describes the programming interface of the FlexCAN HAL driver.

Data Structures
struct	flexcan_id_table_t
	FlexCAN receive FIFO ID filter table structure. More...

struct	flexcan_buserr_counter_t
	FlexCAN bus error counters. More...

struct	flexcan_msgbuff_code_status_t
	FlexCAN Message Buffer code and status for transmit and receive. More...

struct	flexcan_msgbuff_t
	FlexCAN message buffer structure. More...

struct	flexcan_time_segment_t
	FlexCAN timing related structures. More...

Enumerations
enum	_flexcan_constants { kFlexCanMessageSize = 8 }
	FlexCAN constants. More...

enum	_flexcan_err_status { kFlexCanRxWrn = 0x0080U, kFlexCanTxWrn = 0x0100U, kFlexCanStfErr = 0x0200U, kFlexCanFrmErr = 0x0400U, kFlexCanCrcErr = 0x0800U, kFlexCanAckErr = 0x1000U, kFlexCanBit0Err = 0x2000U, kFlexCanBit1Err = 0x4000U }
	The Status enum is used to report current status of the FlexCAN interface. More...

enum	flexcan_status_t
	FlexCAN status return codes.

enum	flexcan_operation_modes_t { kFlexCanNormalMode, kFlexCanListenOnlyMode, kFlexCanLoopBackMode, kFlexCanFreezeMode, kFlexCanDisableMode }
	FlexCAN operation modes. More...

enum	flexcan_msgbuff_code_rx_t { kFlexCanRXInactive = 0x0, kFlexCanRXFull = 0x2, kFlexCanRXEmpty = 0x4, kFlexCanRXOverrun = 0x6, kFlexCanRXBusy = 0x8, kFlexCanRXRanswer = 0xA, kFlexCanRXNotUsed = 0xF }
	FlexCAN message buffer code for receive buffers. More...

enum	flexcan_msgbuff_code_tx_t { kFlexCanTXInactive = 0x08, kFlexCanTXAbort = 0x09, kFlexCanTXData = 0x0C, kFlexCanTXRemote = 0x1C, kFlexCanTXTanswer = 0x0E, kFlexCanTXNotUsed = 0xF }
	FlexCAN message buffer code for transmit buffers. More...

enum	flexcan_msgbuff_transmission_type_t { kFlexCanMBStatusTypeTX, kFlexCanMBStatusTypeTXRemote, kFlexCanMBStatusTypeRX, kFlexCanMBStatusTypeRXRemote, kFlexCanMBStatusTypeRXTXRemote }
	FlexCAN message buffer transmission types. More...

enum	flexcan_rx_fifo_id_element_format_t { kFlexCanRxFifoIdElementFormatA, kFlexCanRxFifoIdElementFormatB, kFlexCanRxFifoIdElementFormatC, kFlexCanRxFifoIdElementFormatD }

enum	flexcan_rx_fifo_id_filter_num_t { kFlexCanRxFifoIDFilters_8 = 0x0, kFlexCanRxFifoIDFilters_16 = 0x1, kFlexCanRxFifoIDFilters_24 = 0x2, kFlexCanRxFifoIDFilters_32 = 0x3, kFlexCanRxFifoIDFilters_40 = 0x4, kFlexCanRxFifoIDFilters_48 = 0x5, kFlexCanRxFifoIDFilters_56 = 0x6, kFlexCanRxFifoIDFilters_64 = 0x7, kFlexCanRxFifoIDFilters_72 = 0x8, kFlexCanRxFifoIDFilters_80 = 0x9, kFlexCanRxFifoIDFilters_88 = 0xA, kFlexCanRxFifoIDFilters_96 = 0xB, kFlexCanRxFifoIDFilters_104 = 0xC, kFlexCanRxFifoIDFilters_112 = 0xD, kFlexCanRxFifoIDFilters_120 = 0xE, kFlexCanRxFifoIDFilters_128 = 0xF }
	FlexCAN receive FIFO filters number. More...

enum	flexcan_rx_mask_type_t { kFlexCanRxMaskGlobal, kFlexCanRxMaskIndividual }
	FlexCAN receive mask type. More...

enum	flexcan_msgbuff_id_type_t { kFlexCanMsgIdStd, kFlexCanMsgIdExt }
	FlexCAN Message Buffer ID type. More...

enum	flexcan_clk_source_t { kFlexCanClkSourceOsc, kFlexCanClkSourceIpbus }
	FlexCAN clock source. More...

enum	flexcan_int_type_t { kFlexCanIntRxwarning = CAN_CTRL1_RWRNMSK_MASK, kFlexCanIntTxwarning = CAN_CTRL1_TWRNMSK_MASK, kFlexCanIntErr = CAN_CTRL1_ERRMSK_MASK, kFlexCanIntBusoff = CAN_CTRL1_BOFFMSK_MASK, kFlexCanIntWakeup = CAN_MCR_WAKMSK_MASK }
	FlexCAN error interrupt types. More...

Configuration
flexcan_status_t	FLEXCAN_HAL_Enable (CAN_Type *base)
	Enables FlexCAN controller. More...

flexcan_status_t	FLEXCAN_HAL_Disable (CAN_Type *base)
	Disables FlexCAN controller. More...

flexcan_status_t	FLEXCAN_HAL_SelectClock (CAN_Type *base, flexcan_clk_source_t clk)
	Selects the clock source for FlexCAN. More...

static bool	FLEXCAN_HAL_GetClock (CAN_Type *base)
	Reads the clock source for FlexCAN Protocol Engine (PE). More...

flexcan_status_t	FLEXCAN_HAL_Init (CAN_Type *base)
	Initializes the FlexCAN controller. More...

void	FLEXCAN_HAL_SetTimeSegments (CAN_Type base, flexcan_time_segment_t timeSeg)
	Sets the FlexCAN time segments for setting up bit rate. More...

void	FLEXCAN_HAL_GetTimeSegments (CAN_Type base, flexcan_time_segment_t timeSeg)
	Gets the FlexCAN time segments to calculate the bit rate. More...

void	FLEXCAN_HAL_ExitFreezeMode (CAN_Type *base)
	Unfreezes the FlexCAN module. More...

void	FLEXCAN_HAL_EnterFreezeMode (CAN_Type *base)
	Freezes the FlexCAN module. More...

flexcan_status_t	FLEXCAN_HAL_SetOperationMode (CAN_Type *base, flexcan_operation_modes_t mode)
	Sets operation mode. More...

flexcan_status_t	FLEXCAN_HAL_ExitOperationMode (CAN_Type *base, flexcan_operation_modes_t mode)
	Exits operation mode. More...

Data transfer
flexcan_status_t	FLEXCAN_HAL_SetTxMsgBuff (CAN_Type base, uint32_t msgBuffIdx, flexcan_msgbuff_code_status_t cs, uint32_t msgId, uint8_t *msgData)
	Sets the FlexCAN message buffer fields for transmitting. More...

flexcan_status_t	FLEXCAN_HAL_SetRxMsgBuff (CAN_Type base, uint32_t msgBuffIdx, flexcan_msgbuff_code_status_t cs, uint32_t msgId)
	Sets the FlexCAN message buffer fields for receiving. More...

flexcan_status_t	FLEXCAN_HAL_GetMsgBuff (CAN_Type base, uint32_t msgBuffIdx, flexcan_msgbuff_t msgBuff)
	Gets the FlexCAN message buffer fields. More...

flexcan_status_t	FLEXCAN_HAL_LockRxMsgBuff (CAN_Type *base, uint32_t msgBuffIdx)
	Locks the FlexCAN receive message buffer. More...

static uint32_t	FLEXCAN_HAL_UnlockRxMsgBuff (CAN_Type *base)
	Unlocks the FlexCAN receive message buffer. More...

void	FLEXCAN_HAL_EnableRxFifo (CAN_Type *base, uint32_t numOfFilters)
	Enables the receive FIFO. More...

void	FLEXCAN_HAL_DisableRxFifo (CAN_Type *base)
	Disables the receive FIFO. More...

void	FLEXCAN_HAL_SetRxFifoFilterNum (CAN_Type *base, uint32_t number)
	Sets the number of the receive FIFO filters. More...

void	FLEXCAN_HAL_SetMaxMsgBuffNum (CAN_Type *base, uint32_t maxMsgBuffNum)
	Sets the number of the last message buffer. More...

flexcan_status_t	FLEXCAN_HAL_SetRxFifoFilter (CAN_Type base, flexcan_rx_fifo_id_element_format_t idFormat, flexcan_id_table_t idFilterTable)
	Sets the FlexCAN receive FIFO fields. More...

flexcan_status_t	FLEXCAN_HAL_ReadRxFifo (CAN_Type base, flexcan_msgbuff_t rxFifo)
	Gets the FlexCAN receive FIFO data. More...

Interrupts
flexcan_status_t	FLEXCAN_HAL_SetMsgBuffIntCmd (CAN_Type *base, uint32_t msgBuffIdx, bool enable)
	Enables/disables the FlexCAN message buffer interrupt. More...

void	FLEXCAN_HAL_SetErrIntCmd (CAN_Type *base, flexcan_int_type_t errType, bool enable)
	Enables the error interrupt of the FlexCAN module. More...

Status
static uint32_t	FLEXCAN_HAL_GetFreezeAck (CAN_Type *base)
	Gets the value of the FlexCAN freeze ACK. More...

uint8_t	FLEXCAN_HAL_GetMsgBuffIntStatusFlag (CAN_Type *base, uint32_t msgBuffIdx)
	Gets the individual FlexCAN MB interrupt flag. More...

static uint32_t	FLEXCAN_HAL_GetAllMsgBuffIntStatusFlag (CAN_Type *base)
	Gets all FlexCAN message buffer interrupt flags. More...

static void	FLEXCAN_HAL_ClearMsgBuffIntStatusFlag (CAN_Type *base, uint32_t flag)
	Clears the interrupt flag of the message buffers. More...

void	FLEXCAN_HAL_GetErrCounter (CAN_Type base, flexcan_buserr_counter_t errCount)
	Gets the transmit error counter and receives the error counter. More...

static uint32_t	FLEXCAN_HAL_GetErrStatus (CAN_Type *base)
	Gets an error and status. More...

void	FLEXCAN_HAL_ClearErrIntStatusFlag (CAN_Type *base)
	Clears all other interrupts in ERRSTAT register (Error, Busoff, and Wakeup). More...

Mask
void	FLEXCAN_HAL_SetRxMaskType (CAN_Type *base, flexcan_rx_mask_type_t type)
	Sets the receive masking type. More...

void	FLEXCAN_HAL_SetRxFifoGlobalStdMask (CAN_Type *base, uint32_t stdMask)
	Sets the FlexCAN receive FIFO global standard mask. More...

void	FLEXCAN_HAL_SetRxFifoGlobalExtMask (CAN_Type *base, uint32_t extMask)
	Sets the FlexCAN receive FIFO global extended mask. More...

flexcan_status_t	FLEXCAN_HAL_SetRxIndividualStdMask (CAN_Type *base, uint32_t msgBuffIdx, uint32_t stdMask)
	Sets the FlexCAN receive individual standard mask for ID filtering in the receive MBs and the receive FIFO. More...

flexcan_status_t	FLEXCAN_HAL_SetRxIndividualExtMask (CAN_Type *base, uint32_t msgBuffIdx, uint32_t extMask)
	Sets the FlexCAN receive individual extended mask for ID filtering in the receive Message Buffers and the receive FIFO. More...

void	FLEXCAN_HAL_SetRxMsgBuffGlobalStdMask (CAN_Type *base, uint32_t stdMask)
	Sets the FlexCAN receive Message Buffer global standard mask. More...

void	FLEXCAN_HAL_SetRxMsgBuff14StdMask (CAN_Type *base, uint32_t stdMask)
	Sets the FlexCAN receive Message Buffer BUF14 standard mask. More...

void	FLEXCAN_HAL_SetRxMsgBuff15StdMask (CAN_Type *base, uint32_t stdMask)
	Sets the FlexCAN receive Message Buffer BUF15 standard mask. More...

void	FLEXCAN_HAL_SetRxMsgBuffGlobalExtMask (CAN_Type *base, uint32_t extMask)
	Sets the FlexCAN receive Message Buffer global extended mask. More...

void	FLEXCAN_HAL_SetRxMsgBuff14ExtMask (CAN_Type *base, uint32_t extMask)
	Sets the FlexCAN receive Message Buffer BUF14 extended mask. More...

void	FLEXCAN_HAL_SetRxMsgBuff15ExtMask (CAN_Type *base, uint32_t extMask)
	Sets the FlexCAN receive MB BUF15 extended mask. More...

static uint32_t	FLEXCAN_HAL_GetRxFifoHitIdAcceptanceFilter (CAN_Type *base)
	Gets the FlexCAN ID acceptance filter hit indicator on receive FIFO. More...

Data Structure Documentation

struct flexcan_id_table_t

Data Fields
bool	isRemoteFrame
	Remote frame.

bool	isExtendedFrame
	Extended frame.

uint32_t *	idFilter
	Receive FIFO ID filter elements.

struct flexcan_buserr_counter_t

Data Fields
uint16_t	txerr
	Transmit error counter.

uint16_t	rxerr
	Receive error counter.

struct flexcan_msgbuff_code_status_t

Data Fields
uint32_t	code
	MB code for transmit or receive buffers. More...

flexcan_msgbuff_id_type_t	msgIdType
	Type of message ID (standard or extended)

uint32_t	dataLen
	Length of Data in Bytes.

Field Documentation

uint32_t flexcan_msgbuff_code_status_t::code

Defined by flexcan_mb_code_rx_t and flexcan_mb_code_tx_t

struct flexcan_msgbuff_t

Data Fields
uint32_t	cs
	Code and Status.

uint32_t	msgId
	Message Buffer ID.

uint8_t	data [kFlexCanMessageSize]
	Bytes of the FlexCAN message.

struct flexcan_time_segment_t

Data Fields
uint32_t	propSeg
	Propagation segment.

uint32_t	phaseSeg1
	Phase segment 1.

uint32_t	phaseSeg2
	Phase segment 2.

uint32_t	preDivider
	Clock pre divider.

uint32_t	rJumpwidth
	Resync jump width.

Enumeration Type Documentation

enum _flexcan_constants

Enumerator
kFlexCanMessageSize	FlexCAN message buffer data size in bytes.

enum _flexcan_err_status

Enumerator
kFlexCanRxWrn	Reached warning level for RX errors.
kFlexCanTxWrn	Reached warning level for TX errors.
kFlexCanStfErr	Stuffing Error.
kFlexCanFrmErr	Form Error.
kFlexCanCrcErr	Cyclic Redundancy Check Error.
kFlexCanAckErr	Received no ACK on transmission.
kFlexCanBit0Err	Unable to send dominant bit.
kFlexCanBit1Err	Unable to send recessive bit.

enum flexcan_operation_modes_t

Enumerator
kFlexCanNormalMode	Normal mode or user mode.
kFlexCanListenOnlyMode	Listen-only mode.
kFlexCanLoopBackMode	Loop-back mode.
kFlexCanFreezeMode	Freeze mode.
kFlexCanDisableMode	Module disable mode.

enum flexcan_msgbuff_code_rx_t

Enumerator
kFlexCanRXInactive	MB is not active.
kFlexCanRXFull	MB is full.
kFlexCanRXEmpty	MB is active and empty.
kFlexCanRXOverrun	MB is overwritten into a full buffer.
kFlexCanRXBusy	FlexCAN is updating the contents of the MB.
kFlexCanRXRanswer	The CPU must not access the MB. A frame was configured to recognize a Remote Request Frame
kFlexCanRXNotUsed	and transmit a Response Frame in return. Not used

enum flexcan_msgbuff_code_tx_t

Enumerator
kFlexCanTXInactive	MB is not active.
kFlexCanTXAbort	MB is aborted.
kFlexCanTXData	MB is a transmit data frame(MB RTR must be 0).
kFlexCanTXRemote	MB is a transmit remote request frame (MB RTR must be 1).
kFlexCanTXTanswer	MB is a transmit response request frame from.
kFlexCanTXNotUsed	an incoming remote request frame. Not used

enum flexcan_msgbuff_transmission_type_t

Enumerator
kFlexCanMBStatusTypeTX	Transmit MB.
kFlexCanMBStatusTypeTXRemote	Transmit remote request MB.
kFlexCanMBStatusTypeRX	Receive MB.
kFlexCanMBStatusTypeRXRemote	Receive remote request MB.
kFlexCanMBStatusTypeRXTXRemote	FlexCAN remote frame receives remote request and. transmits MB.

enum flexcan_rx_fifo_id_element_format_t

Enumerator
kFlexCanRxFifoIdElementFormatA	One full ID (standard and extended) per ID Filter Table.
kFlexCanRxFifoIdElementFormatB	element. Two full standard IDs or two partial 14-bit (standard and
kFlexCanRxFifoIdElementFormatC	extended) IDs per ID Filter Table element. Four partial 8-bit Standard IDs per ID Filter Table
kFlexCanRxFifoIdElementFormatD	element. All frames rejected.

enum flexcan_rx_fifo_id_filter_num_t

Enumerator
kFlexCanRxFifoIDFilters_8	8 receive FIFO Filters.
kFlexCanRxFifoIDFilters_16	16 receive FIFO Filters.
kFlexCanRxFifoIDFilters_24	24 receive FIFO Filters.
kFlexCanRxFifoIDFilters_32	32 receive FIFO Filters.
kFlexCanRxFifoIDFilters_40	40 receive FIFO Filters.
kFlexCanRxFifoIDFilters_48	48 receive FIFO Filters.
kFlexCanRxFifoIDFilters_56	56 receive FIFO Filters.
kFlexCanRxFifoIDFilters_64	64 receive FIFO Filters.
kFlexCanRxFifoIDFilters_72	72 receive FIFO Filters.
kFlexCanRxFifoIDFilters_80	80 receive FIFO Filters.
kFlexCanRxFifoIDFilters_88	88 receive FIFO Filters.
kFlexCanRxFifoIDFilters_96	96 receive FIFO Filters.
kFlexCanRxFifoIDFilters_104	104 receive FIFO Filters.
kFlexCanRxFifoIDFilters_112	112 receive FIFO Filters.
kFlexCanRxFifoIDFilters_120	120 receive FIFO Filters.
kFlexCanRxFifoIDFilters_128	128 receive FIFO Filters.

enum flexcan_rx_mask_type_t

Enumerator
kFlexCanRxMaskGlobal	Receive global mask.
kFlexCanRxMaskIndividual	Receive individual mask.

enum flexcan_msgbuff_id_type_t

Enumerator
kFlexCanMsgIdStd	Standard ID.
kFlexCanMsgIdExt	Extended ID.

enum flexcan_clk_source_t

Enumerator
kFlexCanClkSourceOsc	Oscillator clock.
kFlexCanClkSourceIpbus	Peripheral clock.

enum flexcan_int_type_t

Enumerator
kFlexCanIntRxwarning	Receive warning interrupt.
kFlexCanIntTxwarning	Transmit warning interrupt.
kFlexCanIntErr	Error interrupt.
kFlexCanIntBusoff	Bus off interrupt.
kFlexCanIntWakeup	Wake up interrupt.

Function Documentation

flexcan_status_t FLEXCAN_HAL_Enable ( CAN_Type * base )

Parameters

base	The FlexCAN base address

Returns: 0 if successful; non-zero failed

flexcan_status_t FLEXCAN_HAL_Disable ( CAN_Type * base )

Parameters

base	The FlexCAN base address

Returns: 0 if successful; non-zero failed

flexcan_status_t FLEXCAN_HAL_SelectClock	(	CAN_Type *	base,
		flexcan_clk_source_t	clk
	)

Parameters

base	The FlexCAN base address
clk	The FlexCAN clock source

Returns: 0 if successful; non-zero failed

static bool FLEXCAN_HAL_GetClock ( CAN_Type * base )

inlinestatic

Parameters

base	The FlexCAN base address

Returns: 0: if clock source is oscillator clock, 1: if clock source is peripheral clock

flexcan_status_t FLEXCAN_HAL_Init ( CAN_Type * base )

Parameters

base	The FlexCAN base address

Returns: 0 if successful; non-zero failed

void FLEXCAN_HAL_SetTimeSegments	(	CAN_Type *	base,
		flexcan_time_segment_t *	timeSeg
	)

Parameters

base	The FlexCAN base address
timeSeg	FlexCAN time segments, which need to be set for the bit rate.

void FLEXCAN_HAL_GetTimeSegments	(	CAN_Type *	base,
		flexcan_time_segment_t *	timeSeg
	)

Parameters

base	The FlexCAN base address
timeSeg	FlexCAN time segments read for bit rate

void FLEXCAN_HAL_ExitFreezeMode ( CAN_Type * base )

Parameters

base	The FlexCAN base address

void FLEXCAN_HAL_EnterFreezeMode ( CAN_Type * base )

Parameters

base	The FlexCAN base address

flexcan_status_t FLEXCAN_HAL_SetOperationMode	(	CAN_Type *	base,
		flexcan_operation_modes_t	mode
	)

Parameters

base	The FlexCAN base address
mode	Set an operation mode

Returns: 0 if successful; non-zero failed.

flexcan_status_t FLEXCAN_HAL_ExitOperationMode	(	CAN_Type *	base,
		flexcan_operation_modes_t	mode
	)

Parameters

base	The FlexCAN base address
mode	Exit An operation mode

Returns: 0 if successful; non-zero failed.

flexcan_status_t FLEXCAN_HAL_SetTxMsgBuff	(	CAN_Type *	base,
		uint32_t	msgBuffIdx,
		flexcan_msgbuff_code_status_t *	cs,
		uint32_t	msgId,
		uint8_t *	msgData
	)

Parameters

base	The FlexCAN base address
msgBuffIdx	Index of the message buffer
cs	CODE/status values (TX)
msgId	ID of the message to transmit
msgData	Bytes of the FlexCAN message

Returns: 0 if successful; non-zero failed

flexcan_status_t FLEXCAN_HAL_SetRxMsgBuff	(	CAN_Type *	base,
		uint32_t	msgBuffIdx,
		flexcan_msgbuff_code_status_t *	cs,
		uint32_t	msgId
	)

Parameters

base	The FlexCAN base address
msgBuffIdx	Index of the message buffer
cs	CODE/status values (RX)
msgId	ID of the message to receive

Returns: 0 if successful; non-zero failed

flexcan_status_t FLEXCAN_HAL_GetMsgBuff	(	CAN_Type *	base,
		uint32_t	msgBuffIdx,
		flexcan_msgbuff_t *	msgBuff
	)

Parameters

base	The FlexCAN base address
msgBuffIdx	Index of the message buffer
msgBuff	The fields of the message buffer

Returns: 0 if successful; non-zero failed

flexcan_status_t FLEXCAN_HAL_LockRxMsgBuff	(	CAN_Type *	base,
		uint32_t	msgBuffIdx
	)

Parameters

base	The FlexCAN base address
msgBuffIdx	Index of the message buffer

Returns: 0 if successful; non-zero failed

static uint32_t FLEXCAN_HAL_UnlockRxMsgBuff ( CAN_Type * base )

inlinestatic

Parameters

base	The FlexCAN base address

Returns: 0 if successful; non-zero failed

void FLEXCAN_HAL_EnableRxFifo	(	CAN_Type *	base,
		uint32_t	numOfFilters
	)

Parameters

base	The FlexCAN base address
numOfFilters	The number of receive FIFO filters

void FLEXCAN_HAL_DisableRxFifo ( CAN_Type * base )

Parameters

base	The FlexCAN base address

void FLEXCAN_HAL_SetRxFifoFilterNum	(	CAN_Type *	base,
		uint32_t	number
	)

Parameters

base	The FlexCAN base address
number	The number of receive FIFO filters

void FLEXCAN_HAL_SetMaxMsgBuffNum	(	CAN_Type *	base,
		uint32_t	maxMsgBuffNum
	)

Parameters

base	The FlexCAN base address
maxMsgBuffNum	Number of the last Message Buffer

flexcan_status_t FLEXCAN_HAL_SetRxFifoFilter	(	CAN_Type *	base,
		flexcan_rx_fifo_id_element_format_t	idFormat,
		flexcan_id_table_t *	idFilterTable
	)

Parameters

base	The FlexCAN base address
idFormat	The format of the receive FIFO ID Filter Table Elements
idFilterTable	The ID filter table elements which contain RTR bit, IDE bit, and receive message ID.

Returns: 0 if successful; non-zero failed.

flexcan_status_t FLEXCAN_HAL_ReadRxFifo	(	CAN_Type *	base,
		flexcan_msgbuff_t *	rxFifo
	)

Parameters

base	The FlexCAN base address
rxFifo	The FlexCAN receive FIFO data

Returns: 0 if successful; non-zero failed.

flexcan_status_t FLEXCAN_HAL_SetMsgBuffIntCmd	(	CAN_Type *	base,
		uint32_t	msgBuffIdx,
		bool	enable
	)

Parameters

base	The FlexCAN base address
msgBuffIdx	Index of the message buffer
enable	choose enable or disable

Returns: 0 if successful; non-zero failed

void FLEXCAN_HAL_SetErrIntCmd	(	CAN_Type *	base,
		flexcan_int_type_t	errType,
		bool	enable
	)

Parameters

base	The FlexCAN base address
errType	The interrupt type
enable	choose enable or disable

static uint32_t FLEXCAN_HAL_GetFreezeAck ( CAN_Type * base )

inlinestatic

Parameters

base	The FlexCAN base address

Returns: freeze ACK state (1-freeze mode, 0-not in freeze mode).

uint8_t FLEXCAN_HAL_GetMsgBuffIntStatusFlag	(	CAN_Type *	base,
		uint32_t	msgBuffIdx
	)

Parameters

base	The FlexCAN base address
msgBuffIdx	Index of the message buffer

Returns: the individual Message Buffer interrupt flag (0 and 1 are the flag value)

static uint32_t FLEXCAN_HAL_GetAllMsgBuffIntStatusFlag ( CAN_Type * base )

inlinestatic

Parameters

base	The FlexCAN base address

Returns: all MB interrupt flags

static void FLEXCAN_HAL_ClearMsgBuffIntStatusFlag	(	CAN_Type *	base,
		uint32_t	flag
	)

inlinestatic

Parameters

base	The FlexCAN base address
flag	The value to be written to the interrupt flag1 register.

void FLEXCAN_HAL_GetErrCounter	(	CAN_Type *	base,
		flexcan_buserr_counter_t *	errCount
	)

Parameters

base	The FlexCAN base address
errCount	Transmit error counter and receive error counter

static uint32_t FLEXCAN_HAL_GetErrStatus ( CAN_Type * base )

inlinestatic

Parameters

base	The FlexCAN base address

Returns: The current error and status

void FLEXCAN_HAL_ClearErrIntStatusFlag ( CAN_Type * base )

Parameters

base	The FlexCAN base address

void FLEXCAN_HAL_SetRxMaskType	(	CAN_Type *	base,
		flexcan_rx_mask_type_t	type
	)

Parameters

base	The FlexCAN base address
type	The FlexCAN receive mask type

void FLEXCAN_HAL_SetRxFifoGlobalStdMask	(	CAN_Type *	base,
		uint32_t	stdMask
	)

Parameters

base	The FlexCAN base address
stdMask	Standard mask

void FLEXCAN_HAL_SetRxFifoGlobalExtMask	(	CAN_Type *	base,
		uint32_t	extMask
	)

Parameters

base	The FlexCAN base address
extMask	Extended mask

flexcan_status_t FLEXCAN_HAL_SetRxIndividualStdMask	(	CAN_Type *	base,
		uint32_t	msgBuffIdx,
		uint32_t	stdMask
	)

Parameters

base	The FlexCAN base address
msgBuffIdx	Index of the message buffer
stdMask	Individual standard mask

Returns: 0 if successful; non-zero failed

flexcan_status_t FLEXCAN_HAL_SetRxIndividualExtMask	(	CAN_Type *	base,
		uint32_t	msgBuffIdx,
		uint32_t	extMask
	)

Parameters

base	The FlexCAN base address
msgBuffIdx	Index of the message buffer
extMask	Individual extended mask

Returns: 0 if successful; non-zero failed

void FLEXCAN_HAL_SetRxMsgBuffGlobalStdMask	(	CAN_Type *	base,
		uint32_t	stdMask
	)

Parameters

base	The FlexCAN base address
stdMask	Standard mask

void FLEXCAN_HAL_SetRxMsgBuff14StdMask	(	CAN_Type *	base,
		uint32_t	stdMask
	)

Parameters

base	The FlexCAN base address
stdMask	Standard mask

void FLEXCAN_HAL_SetRxMsgBuff15StdMask	(	CAN_Type *	base,
		uint32_t	stdMask
	)

Parameters

base	The FlexCAN base address
stdMask	Standard mask

void FLEXCAN_HAL_SetRxMsgBuffGlobalExtMask	(	CAN_Type *	base,
		uint32_t	extMask
	)

Parameters

base	The FlexCAN base address
extMask	Extended mask

void FLEXCAN_HAL_SetRxMsgBuff14ExtMask	(	CAN_Type *	base,
		uint32_t	extMask
	)

Parameters

base	The FlexCAN base address
extMask	Extended mask

void FLEXCAN_HAL_SetRxMsgBuff15ExtMask	(	CAN_Type *	base,
		uint32_t	extMask
	)

Parameters

base	The FlexCAN base address
extMask	Extended mask

static uint32_t FLEXCAN_HAL_GetRxFifoHitIdAcceptanceFilter ( CAN_Type * base )

inlinestatic

Parameters

base	The FlexCAN base address

Returns: receive FIFO information

Overview

Data Structures

Enumerations

Configuration

Data transfer

Interrupts

Status

Mask

Data Structure Documentation

Data Fields

Data Fields

Data Fields

Field Documentation

Data Fields

Data Fields

Enumeration Type Documentation

Function Documentation