[can.h] Controller Area Network

Collaboration diagram for [can.h] Controller Area Network:

Macros
#define	CANSS_CTRL_EXT_TIMESTAMP_EN   (CANFD_MCANSS_CTRL_EXT_TS_CNTR_EN_M)
	External Timestamp Counter Enable. More...
#define	CANSS_CTRL_AUTOWAKEUP_EN   (CANFD_MCANSS_CTRL_AUTOWAKEUP_M)
	Automatic Wakeup Enable. More...
#define	CANSS_CTRL_WAKEUP_REQ_EN   (CANFD_MCANSS_CTRL_WAKEUPREQEN_M)
	Wakeup Request Enable. More...
#define	CANSS_CTRL_DEBUG_SUSPEND_EN   (CANFD_MCANSS_CTRL_DBGSUSP_FREE_M)
	Debug Suspend Enable. More...
#define	CANSS_STATUS_ENABLE_FDOE   (CANFD_MCANSS_STAT_ENABLE_FDOE_M)
	CAN FD Operation Enabled. More...
#define	CANSS_STATUS_MEM_INIT_DONE   (CANFD_MCANSS_STAT_MEM_INIT_DONE_M)
	Memory Initialization Done. More...
#define	CANSS_INT_EXT_TIMESTAMP_OVERFLOW   (CANFD_MCANSS_IRS_EXT_TS_CNTR_OVFL_M)
	External Timestamp Counter Overflow Interrupt. More...
#define	CANSS_EOI_EXT_TIMESTAMP   0U
	End Of Interrupt for External Timestamp. More...
#define	CANSS_EOI_MCAN0   1U
	End Of Interrupt for MCAN Interrupt Line 0. More...
#define	CANSS_EOI_MCAN1   2U
	End Of Interrupt for MCAN Interrupt Line 1. More...
#define	CAN_INT_LINE0   0U
	Interrupt Line 0. More...
#define	CAN_INT_LINE1   1U
	Interrupt Line 1. More...
#define	CAN_INT_DMA_DONE1   (CANFD_IMASK0_DMA_DONE1_M)
	DMA Done Channel 1 Event Interrupt. More...
#define	CAN_INT_DMA_DONE0   (CANFD_IMASK0_DMA_DONE0_M)
	DMA Done Channel 0 Event Interrupt. More...
#define	CAN_INT_FILTER_EVENT2   (CANFD_IMASK0_FE2_M)
	Rx Buffer Filter Event 2 Interrupt. More...
#define	CAN_INT_EXT_TS_OR_WAKE   (CANFD_IMASK0_EXT_TS_OR_WAKE_M)
	External Timestamp or Wake Event Interrupt. More...
#define	CAN_INT_DED   (CANFD_IMASK0_DED_M)
	Double Error Detected Event Interrupt. More...
#define	CAN_INT_SEC   (CANFD_IMASK0_SEC_M)
	Single Error Corrected Event Interrupt. More...
#define	CAN_INT_INTL1   (CANFD_IMASK0_INTL1_M)
	MCAN Interrupt Line 1 Event Interrupt. More...
#define	CAN_INT_INTL0   (CANFD_IMASK0_INTL0_M)
	MCAN Interrupt Line 0 Event Interrupt. More...
#define	CAN_INT_MASK   (0x0000000FU)
	Mask of all interrupts. More...
#define	CANSS_CLK_DIVIDE_BY_1   0U
	Divides input clock by 1. More...
#define	CANSS_CLK_DIVIDE_BY_2   1U
	Divides input clock by 2. More...
#define	CANSS_CLK_DIVIDE_BY_4   2U
	Divides input clock by 4. More...
#define	CANSS_CLKCTRL_WAKEUP_GLITCH_FILTER_EN   (CANFD_MCANSS_CLKCTL_WKUP_GLTFLT_EN_M)
	Wakeup Glitch Filter Enable. More...
#define	CANSS_CLKCTRL_WAKEUP_INT_EN   (CANFD_MCANSS_CLKCTL_WAKEUP_INT_EN_M)
	Wakeup Interrupt Enable. More...
#define	CANSS_CLKCTRL_STOP_REQ   (CANFD_MCANSS_CLKCTL_STOPREQ_M)
	Clock Stop Request. More...
#define	CANSS_CLKSTAT_CLKSTOP_REQ_OVR   (CANFD_MCANSS_CLKSTS_STOPREQ_HW_OVR_M)
	Clock Stop Request Hardware Override (1 = Request cleared by HW) More...
#define	CANSS_CLKSTAT_CLKSTOP_ACK   (CANFD_MCANSS_CLKSTS_CLKSTOP_ACKSTS_M)
	Clock Stop Acknowledge. More...

Functions
__STATIC_INLINE void	CANSSSetControl (uint32_t flags)
	Sets the specified CAN Subsystem control feature flag(s). More...
__STATIC_INLINE void	CANSSClearControl (uint32_t flags)
	Clears the specified CAN Subsystem control feature flag(s). More...
__STATIC_INLINE uint32_t	CANSSGetStatus (void)
	Gets the CAN Subsystem status. More...
__STATIC_INLINE uint32_t	CANSSGetMaskedIntStatus (void)
	Gets the CAN Subsystem masked interrupt status. More...
__STATIC_INLINE uint32_t	CANSSGetRawIntStatus (void)
	Gets the CAN Subsystem raw interrupt status. More...
__STATIC_INLINE void	CANSSClearInt (uint32_t flags)
	Clears the specified CAN Subsytem interrupt enable(s). More...
__STATIC_INLINE void	CANSSEnableInt (uint32_t flags)
	Enables the specified CAN Subsytem interrupt(s). More...
__STATIC_INLINE void	CANSSDisableInt (uint32_t flags)
	Disables the specified CAN Subsytem interrupt(s). More...
void	CANSSSetEndOfInt (uint32_t eoi) __attribute__((weak))
	Sets the CAN Subsystem End Of Interrupt (EOI). More...
__STATIC_INLINE void	CANSSSetExtTimestampPrescaler (uint32_t prescaler)
	Sets the CAN Subsystem external timestamp prescaler. More...
__STATIC_INLINE uint32_t	CANSSGetExtTSUnservicedIntCounter (void)
	Gets the CAN Subsystem external timestamp unserviced interrupts counter. More...
__STATIC_INLINE void	CANSetIntMask (uint32_t lineNum, uint32_t flags)
	Sets the CAN peripheral interrupt mask. More...
__STATIC_INLINE void	CANClearIntMask (uint8_t lineNum, uint32_t flags)
	Clears the CAN peripheral interrupt mask. More...
__STATIC_INLINE uint32_t	CANGetMaskedIntStatus (uint8_t lineNum)
	Gets the CAN masked peripheral interrupt status. More...
__STATIC_INLINE uint32_t	CANGetRawIntStatus (uint8_t lineNum)
	Gets the CAN raw peripheral interrupt status. More...
void	CANClearInt (uint8_t lineNum, uint32_t flags) __attribute__((weak))
	Clears the specified CAN peripheral interrupt(s). More...
__STATIC_INLINE void	CANSSSetClockDivider (uint32_t ratio)
	Sets the CAN Subsystem clock divider ratio for the functional clock input. More...
void	CANSSSetClkStopCtrl (uint32_t flags) __attribute__((weak))
	Sets the CAN Subsystem clock stop control feature flag(s). More...
void	CANSSClearClkStopCtrl (uint32_t flags) __attribute__((weak))
	Clears the CAN Subsystem clock stop control feature flag(s). More...
__STATIC_INLINE uint32_t	CANSSGetClkStopCtrlStatus (void)
	Gets the CAN Subsystem clock stop control status. More...

Detailed Description

Macro Definition Documentation

CANSS_CTRL_EXT_TIMESTAMP_EN

#define CANSS_CTRL_EXT_TIMESTAMP_EN   (CANFD_MCANSS_CTRL_EXT_TS_CNTR_EN_M)

External Timestamp Counter Enable.

CANSS_CTRL_AUTOWAKEUP_EN

#define CANSS_CTRL_AUTOWAKEUP_EN   (CANFD_MCANSS_CTRL_AUTOWAKEUP_M)

Automatic Wakeup Enable.

CANSS_CTRL_WAKEUP_REQ_EN

#define CANSS_CTRL_WAKEUP_REQ_EN   (CANFD_MCANSS_CTRL_WAKEUPREQEN_M)

Wakeup Request Enable.

CANSS_CTRL_DEBUG_SUSPEND_EN

#define CANSS_CTRL_DEBUG_SUSPEND_EN   (CANFD_MCANSS_CTRL_DBGSUSP_FREE_M)

Debug Suspend Enable.

CANSS_STATUS_ENABLE_FDOE

#define CANSS_STATUS_ENABLE_FDOE   (CANFD_MCANSS_STAT_ENABLE_FDOE_M)

CAN FD Operation Enabled.

CANSS_STATUS_MEM_INIT_DONE

#define CANSS_STATUS_MEM_INIT_DONE   (CANFD_MCANSS_STAT_MEM_INIT_DONE_M)

Memory Initialization Done.

CANSS_INT_EXT_TIMESTAMP_OVERFLOW

#define CANSS_INT_EXT_TIMESTAMP_OVERFLOW   (CANFD_MCANSS_IRS_EXT_TS_CNTR_OVFL_M)

External Timestamp Counter Overflow Interrupt.

CANSS_EOI_EXT_TIMESTAMP

#define CANSS_EOI_EXT_TIMESTAMP   0U

End Of Interrupt for External Timestamp.

CANSS_EOI_MCAN0

#define CANSS_EOI_MCAN0   1U

End Of Interrupt for MCAN Interrupt Line 0.

CANSS_EOI_MCAN1

#define CANSS_EOI_MCAN1   2U

End Of Interrupt for MCAN Interrupt Line 1.

CAN_INT_LINE0

#define CAN_INT_LINE0   0U

Interrupt Line 0.

Referenced by __attribute__(), CANClearIntMask(), CANGetMaskedIntStatus(), CANGetRawIntStatus(), and CANSetIntMask().

CAN_INT_LINE1

#define CAN_INT_LINE1   1U

Interrupt Line 1.

CAN_INT_DMA_DONE1

#define CAN_INT_DMA_DONE1   (CANFD_IMASK0_DMA_DONE1_M)

DMA Done Channel 1 Event Interrupt.

CAN_INT_DMA_DONE0

#define CAN_INT_DMA_DONE0   (CANFD_IMASK0_DMA_DONE0_M)

DMA Done Channel 0 Event Interrupt.

CAN_INT_FILTER_EVENT2

#define CAN_INT_FILTER_EVENT2   (CANFD_IMASK0_FE2_M)

Rx Buffer Filter Event 2 Interrupt.

CAN_INT_EXT_TS_OR_WAKE

#define CAN_INT_EXT_TS_OR_WAKE   (CANFD_IMASK0_EXT_TS_OR_WAKE_M)

External Timestamp or Wake Event Interrupt.

CAN_INT_DED

#define CAN_INT_DED   (CANFD_IMASK0_DED_M)

Double Error Detected Event Interrupt.

CAN_INT_SEC

#define CAN_INT_SEC   (CANFD_IMASK0_SEC_M)

Single Error Corrected Event Interrupt.

CAN_INT_INTL1

#define CAN_INT_INTL1   (CANFD_IMASK0_INTL1_M)

MCAN Interrupt Line 1 Event Interrupt.

CAN_INT_INTL0

#define CAN_INT_INTL0   (CANFD_IMASK0_INTL0_M)

MCAN Interrupt Line 0 Event Interrupt.

CAN_INT_MASK

#define CAN_INT_MASK   (0x0000000FU)

Mask of all interrupts.

CANSS_CLK_DIVIDE_BY_1

#define CANSS_CLK_DIVIDE_BY_1   0U

Divides input clock by 1.

CANSS_CLK_DIVIDE_BY_2

#define CANSS_CLK_DIVIDE_BY_2   1U

Divides input clock by 2.

CANSS_CLK_DIVIDE_BY_4

#define CANSS_CLK_DIVIDE_BY_4   2U

Divides input clock by 4.

CANSS_CLKCTRL_WAKEUP_GLITCH_FILTER_EN

#define CANSS_CLKCTRL_WAKEUP_GLITCH_FILTER_EN   (CANFD_MCANSS_CLKCTL_WKUP_GLTFLT_EN_M)

Wakeup Glitch Filter Enable.

CANSS_CLKCTRL_WAKEUP_INT_EN

#define CANSS_CLKCTRL_WAKEUP_INT_EN   (CANFD_MCANSS_CLKCTL_WAKEUP_INT_EN_M)

Wakeup Interrupt Enable.

CANSS_CLKCTRL_STOP_REQ

#define CANSS_CLKCTRL_STOP_REQ   (CANFD_MCANSS_CLKCTL_STOPREQ_M)

Clock Stop Request.

CANSS_CLKSTAT_CLKSTOP_REQ_OVR

#define CANSS_CLKSTAT_CLKSTOP_REQ_OVR   (CANFD_MCANSS_CLKSTS_STOPREQ_HW_OVR_M)

Clock Stop Request Hardware Override (1 = Request cleared by HW)

CANSS_CLKSTAT_CLKSTOP_ACK

#define CANSS_CLKSTAT_CLKSTOP_ACK   (CANFD_MCANSS_CLKSTS_CLKSTOP_ACKSTS_M)

Clock Stop Acknowledge.

Function Documentation

CANSSSetControl()

__STATIC_INLINE void CANSSSetControl

(

uint32_t

flags

)

Sets the specified CAN Subsystem control feature flag(s).

Parameters

flags

is a bit mask of the features to enable. The parameter is the bitwise OR of any of the following values: CANSS_CTRL_EXT_TIMESTAMP_EN : External Timestamp Counter Enable CANSS_CTRL_AUTOWAKEUP_EN : Automatic Wakeup Enable CANSS_CTRL_WAKEUP_REQ_EN : Wakeup Request Enable CANSS_CTRL_DEBUG_SUSPEND_EN : Debug Suspend Enable

See also

CANSSClearControl()

Returns

None

CANSSClearControl()

__STATIC_INLINE void CANSSClearControl

(

uint32_t

flags

)

Clears the specified CAN Subsystem control feature flag(s).

Parameters

flags

is a bit mask of the features to disable. The parameter is the bitwise OR of any of the following values: CANSS_CTRL_EXT_TIMESTAMP_EN : External Timestamp Counter Enable CANSS_CTRL_AUTOWAKEUP_EN : Automatic Wakeup Enable CANSS_CTRL_WAKEUP_REQ_EN : Wakeup Request Enable CANSS_CTRL_DEBUG_SUSPEND_EN : Debug Suspend Enable

See also

CANSSSetControl()

Returns

None

CANSSGetStatus()

__STATIC_INLINE uint32_t CANSSGetStatus

(

void

)

Gets the CAN Subsystem status.

Note

After reset, SW must wait for 'Memory Initialization Done' before the MCAN core is configured and activated.

Returns

A bit mask of the CAN Subsystem status:

• CANSS_STATUS_ENABLE_FDOE : CAN FD Operation Enabled
• CANSS_STATUS_MEM_INIT_DONE : Memory Initialization Done

CANSSGetMaskedIntStatus()

__STATIC_INLINE uint32_t CANSSGetMaskedIntStatus

(

void

)

Gets the CAN Subsystem masked interrupt status.

Returns

The CAN Subsystem masked interrupt status, enumerated as a bit field of:

• CANSS_INT_EXT_TIMESTAMP_OVERFLOW : External Timestamp Counter Overflow.

CANSSGetRawIntStatus()

__STATIC_INLINE uint32_t CANSSGetRawIntStatus

(

void

)

Gets the CAN Subsystem raw interrupt status.

Returns

The CAN Subsystem raw interrupt status, enumerated as a bit field of:

• CANSS_INT_EXT_TIMESTAMP_OVERFLOW : External Timestamp Counter Overflow.

CANSSClearInt()

__STATIC_INLINE void CANSSClearInt

(

uint32_t

flags

)

Clears the specified CAN Subsytem interrupt enable(s).

Parameters

flags

A bit mask of the CAN interrupts to clear: The parameter is the bitwise OR of any of the following values: CANSS_INT_EXT_TIMESTAMP_OVERFLOW : External Timestamp Counter Overflow

Returns

None

CANSSEnableInt()

__STATIC_INLINE void CANSSEnableInt

(

uint32_t

flags

)

Enables the specified CAN Subsytem interrupt(s).

Parameters

flags

A bit mask of the CAN Subsytem interrupts: The parameter is the bitwise OR of any of the following values: CANSS_INT_EXT_TIMESTAMP_OVERFLOW : External Timestamp Counter Overflow

See also

CANSSDisableInt()

Returns

None

CANSSDisableInt()

__STATIC_INLINE void CANSSDisableInt

(

uint32_t

flags

)

Disables the specified CAN Subsytem interrupt(s).

Parameters

flags

A bit mask of the CAN Subsytem interrupts: The parameter is the bitwise OR of any of the following values: CANSS_INT_EXT_TIMESTAMP_OVERFLOW : External Timestamp Counter Overflow

See also

CANSSEnableInt()

Returns

None

References __attribute__(), and CANSSSetEndOfInt().

CANSSSetEndOfInt()

void CANSSSetEndOfInt

(

uint32_t

eoi

)

Sets the CAN Subsystem End Of Interrupt (EOI).

Note

Setting the EOI will clear the associated interrupt. If the unserviced interrupt counter is > 1, another interrupt is generated. For MCAN Interrupts, this function should be called after clearing the flags in MCAN.IR.

Parameters

eoi	is one of the following: CANSS_EOI_EXT_TIMESTAMP : End Of Interrupt for External Timestamp CANSS_EOI_MCAN0 : End Of Interrupt for MCAN Interrupt Line 0 CANSS_EOI_MCAN1 : End Of Interrupt for MCAN Interrupt Line 1

Returns

None

Referenced by CANSSDisableInt().

CANSSSetExtTimestampPrescaler()

__STATIC_INLINE void CANSSSetExtTimestampPrescaler

(

uint32_t

prescaler

)

Sets the CAN Subsystem external timestamp prescaler.

Parameters

prescaler

the external timestamp count rate is the host (system) clock rate divided by this value, except in the case of 0. A zero value will act identically to a value of 0x000001.

Returns

None

CANSSGetExtTSUnservicedIntCounter()

__STATIC_INLINE uint32_t CANSSGetExtTSUnservicedIntCounter

(

void

)

Gets the CAN Subsystem external timestamp unserviced interrupts counter.

Returns

The number of external timestamp unserviced rollover interrupts.

CANSetIntMask()

__STATIC_INLINE void CANSetIntMask	(	uint32_t	lineNum,
		uint32_t	flags
	)

Sets the CAN peripheral interrupt mask.

Parameters

lineNum

Interrupt Line to set the interrupt mask for: CAN_INT_LINE0 : Interrupt Line 0 CAN_INT_LINE1 : Interrupt Line 1

flags

A bit mask of the CAN interrupts: The parameter is the bitwise OR of any of the following values: CAN_INT_DMA_DONE1 : DMA Done Channel 1 Event Interrupt CAN_INT_DMA_DONE0 : DMA Done Channel 0 Event Interrupt CAN_INT_FILTER_EVENT2 : Rx Buffer Filter Event 2 Interrupt CAN_INT_EXT_TS_OR_WAKE : External Timestamp or Wake Event Interrupt CAN_INT_DED : Double Error Detected Event Interrupt CAN_INT_SEC : Single Error Corrected Event Interrupt CAN_INT_INTL1 : MCAN Interrupt Line 1 Event Interrupt CAN_INT_INTL0 : MCAN Interrupt Line 0 Event Interrupt CAN_INT_MASK : Mask of all of the above interrupts

See also

CANClearIntMask()

Returns

None

References CAN_INT_LINE0.

CANClearIntMask()

__STATIC_INLINE void CANClearIntMask	(	uint8_t	lineNum,
		uint32_t	flags
	)

Clears the CAN peripheral interrupt mask.

Parameters

lineNum

Interrupt Line to clear the interrupt mask for: CAN_INT_LINE0 : Interrupt Line 0 CAN_INT_LINE1 : Interrupt Line 1

flags

A bit mask of the CAN interrupts: The parameter is the bitwise OR of any of the following values: CAN_INT_DMA_DONE1 : DMA Done Channel 1 Event Interrupt CAN_INT_DMA_DONE0 : DMA Done Channel 0 Event Interrupt CAN_INT_FILTER_EVENT2 : Rx Buffer Filter Event 2 Interrupt CAN_INT_EXT_TS_OR_WAKE : External Timestamp or Wake Event Interrupt CAN_INT_DED : Double Error Detected Event Interrupt CAN_INT_SEC : Single Error Corrected Event Interrupt CAN_INT_INTL1 : MCAN Interrupt Line 1 Event Interrupt CAN_INT_INTL0 : MCAN Interrupt Line 0 Event Interrupt CAN_INT_MASK : Mask of all of the above interrupts

See also

CANSetIntMask()

Returns

None

References CAN_INT_LINE0.

CANGetMaskedIntStatus()

__STATIC_INLINE uint32_t CANGetMaskedIntStatus

(

uint8_t

lineNum

)

Gets the CAN masked peripheral interrupt status.

Parameters

lineNum

is the interrupt line number to get the interrupt status for: CAN_INT_LINE0 : Interrupt Line 0 CAN_INT_LINE1 : Interrupt Line 1

Returns

The CAN masked interrupt status, enumerated as a bit field of:

• CAN_INT_DMA_DONE1 : DMA Done Channel 1 Event Interrupt
• CAN_INT_DMA_DONE0 : DMA Done Channel 0 Event Interrupt
• CAN_INT_FILTER_EVENT2 : Rx Buffer Filter Event 2 Interrupt
• CAN_INT_EXT_TS_OR_WAKE : External Timestamp or Wake Event Interrupt
• CAN_INT_DED : Double Error Detected Event Interrupt
• CAN_INT_SEC : Single Error Corrected Event Interrupt
• CAN_INT_INTL1 : MCAN Interrupt Line 1 Event Interrupt
• CAN_INT_INTL0 : MCAN Interrupt Line 0 Event Interrupt

References CAN_INT_LINE0.

CANGetRawIntStatus()

__STATIC_INLINE uint32_t CANGetRawIntStatus

(

uint8_t

lineNum

)

Gets the CAN raw peripheral interrupt status.

Parameters

lineNum

is the interrupt line number to get the interrupt status for: CAN_INT_LINE0 : Interrupt Line 0 CAN_INT_LINE1 : Interrupt Line 1

Returns

The CAN raw interrupt status, enumerated as a bit field of:

• CAN_INT_DMA_DONE1 : DMA Done Channel 1 Event Interrupt
• CAN_INT_DMA_DONE0 : DMA Done Channel 0 Event Interrupt
• CAN_INT_FILTER_EVENT2 : Rx Buffer Filter Event 2 Interrupt
• CAN_INT_EXT_TS_OR_WAKE : External Timestamp or Wake Event Interrupt
• CAN_INT_DED : Double Error Detected Event Interrupt
• CAN_INT_SEC : Single Error Corrected Event Interrupt
• CAN_INT_INTL1 : MCAN Interrupt Line 1 Event Interrupt
• CAN_INT_INTL0 : MCAN Interrupt Line 0 Event Interrupt

References __attribute__(), CAN_INT_LINE0, and CANClearInt().

CANClearInt()

void CANClearInt	(	uint8_t	lineNum,
		uint32_t	flags
	)

Clears the specified CAN peripheral interrupt(s).

Note

For MCAN Interrupts, this function should be called before clearing the flags in MCAN.IR.

Parameters

lineNum

Interrupt Line to clear the interrupt mask for: CAN_INT_LINE0 : Interrupt Line 0 CAN_INT_LINE1 : Interrupt Line 1

flags

A bit mask of the CAN interrupts to clear: The parameter is the bitwise OR of any of the following values: CAN_INT_DMA_DONE1 : DMA Done Channel 1 Event Interrupt CAN_INT_DMA_DONE0 : DMA Done Channel 0 Event Interrupt CAN_INT_FILTER_EVENT2 : Rx Buffer Filter Event 2 Interrupt CAN_INT_EXT_TS_OR_WAKE : External Timestamp or Wake Event Interrupt CAN_INT_DED : Double Error Detected Event Interrupt CAN_INT_SEC : Single Error Corrected Event Interrupt CAN_INT_INTL1 : MCAN Interrupt Line 1 Event Interrupt CAN_INT_INTL0 : MCAN Interrupt Line 0 Event Interrupt

Returns

None

Referenced by __attribute__(), and CANGetRawIntStatus().

CANSSSetClockDivider()

__STATIC_INLINE void CANSSSetClockDivider

(

uint32_t

ratio

)

Sets the CAN Subsystem clock divider ratio for the functional clock input.

Note

The functional clock input frequency is 80 MHz.

Parameters

ratio

is one of the following clock divider ratios: CANSS_CLK_DIVIDE_BY_1 0U : Divides input clock by 1 CANSS_CLK_DIVIDE_BY_2 1U : Divides input clock by 2 CANSS_CLK_DIVIDE_BY_4 2U : Divides input clock by 4

Returns

None

References __attribute__(), CANSSClearClkStopCtrl(), and CANSSSetClkStopCtrl().

CANSSSetClkStopCtrl()

void CANSSSetClkStopCtrl

(

uint32_t

flags

)

Sets the CAN Subsystem clock stop control feature flag(s).

Parameters

flags

is a bit mask of the features to enable. The parameter is the bitwise OR of any of the following values: CANSS_CLKCTRL_WAKEUP_GLITCH_FILTER_EN : Wakeup Glitch Filter Enable CANSS_CLKCTRL_WAKEUP_INT_EN : Wakeup Interrupt Enable CANSS_CLKCTRL_STOP_REQ : Clock Stop Request

See also

CANSSClearClkStopCtrl

Returns

None

Referenced by __attribute__(), and CANSSSetClockDivider().

CANSSClearClkStopCtrl()

void CANSSClearClkStopCtrl

(

uint32_t

flags

)

Clears the CAN Subsystem clock stop control feature flag(s).

Parameters

flags

is a bit mask of the features to disable. The parameter is the bitwise OR of any of the following values: CANSS_CLKCTRL_WAKEUP_GLITCH_FILTER_EN : Wakeup Glitch Filter Enable CANSS_CLKCTRL_WAKEUP_INT_EN : Wakeup Interrupt Enable CANSS_CLKCTRL_STOP_REQ : Clock Stop Request

See also

CANSSSetClkStopCtrl

Returns

None

Referenced by __attribute__(), and CANSSSetClockDivider().

CANSSGetClkStopCtrlStatus()

__STATIC_INLINE uint32_t CANSSGetClkStopCtrlStatus

(

void

)

Gets the CAN Subsystem clock stop control status.

Returns

The CAN Subsystem clock stop control status, enumerated as a bit field of:

• CANSS_CLKSTAT_CLKSTOP_REQ_OVR : Clock Stop Request Hardware Override (1 = Request cleared by HW)
• CANSS_CLKSTAT_CLKSTOP_ACK : Clock Stop Acknowledge

None