can.c File Reference

#include "common/phal_F4/can/can.h"

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Functions
bool	PHAL_initCAN (CAN_TypeDef *bus, bool test_mode, uint32_t bit_rate)
	Initilize CAN peripheral to bit_rate.
bool	PHAL_deinitCAN (CAN_TypeDef *bus)
bool	PHAL_txCANMessage (CanMsgTypeDef_t *msg, uint8_t txMbox)
	Find an empty TX mailbox and transmit a CAN message if one is found. Function will block until sucessful transmission of message until a specified timeout.
bool	PHAL_txMailboxFree (CAN_TypeDef *bus, uint8_t mbx)
bool	PHAL_anyTxMailboxFree (CAN_TypeDef *bus)
bool	PHAL_getFreeTxMailbox (CAN_TypeDef *bus, uint8_t *mbx)
void	PHAL_txCANAbort (CAN_TypeDef *bus, uint8_t mbx)
bool	PHAL_rxCANMessage (CAN_TypeDef *bus, uint8_t fifo, CanMsgTypeDef_t *msg)
void	PHAL_CAN_rxIRQ (CAN_TypeDef *bus, uint8_t fifo)
void	__attribute__ ((weak))
void	PHAL_CAN_txIRQ (CAN_TypeDef *bus)
void	CAN1_TX_IRQHandler (void)
void	CAN2_TX_IRQHandler (void)
void	PHAL_CAN_txCallback (CAN_TypeDef *can)
void	PHAL_CAN_rxCallback (CanMsgTypeDef_t *msg)

Variables
uint32_t	APB1ClockRateHz

Function Documentation

__attribute__()

void __attribute__

(

(weak)

)

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CAN1_TX_IRQHandler()

void CAN1_TX_IRQHandler

(

void

)

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CAN2_TX_IRQHandler()

void CAN2_TX_IRQHandler

(

void

)

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PHAL_anyTxMailboxFree()

bool PHAL_anyTxMailboxFree

(

CAN_TypeDef *

bus

)

PHAL_CAN_rxCallback()

void PHAL_CAN_rxCallback

(

CanMsgTypeDef_t *

msg

)

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PHAL_CAN_rxIRQ()

void PHAL_CAN_rxIRQ	(	CAN_TypeDef *	bus,
		uint8_t	fifo )

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PHAL_CAN_txCallback()

void PHAL_CAN_txCallback

(

CAN_TypeDef *

can

)

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PHAL_CAN_txIRQ()

void PHAL_CAN_txIRQ

(

CAN_TypeDef *

bus

)

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PHAL_deinitCAN()

bool PHAL_deinitCAN

(

CAN_TypeDef *

bus

)

PHAL_getFreeTxMailbox()

bool PHAL_getFreeTxMailbox	(	CAN_TypeDef *	bus,
		uint8_t *	mbx )

PHAL_initCAN()

bool PHAL_initCAN	(	CAN_TypeDef *	bus,
		bool	test_mode,
		uint32_t	bit_rate )

Initilize CAN peripheral to bit_rate.

Parameters

test_mode	Initilize CAN peripheral for self test mode
bit_rate	Bit rate in bps (i.e. 500000)

Returns

true Peripheral sucessfully initalized

false Peripheral stalled during initilization

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PHAL_rxCANMessage()

bool PHAL_rxCANMessage	(	CAN_TypeDef *	bus,
		uint8_t	fifo,
		CanMsgTypeDef_t *	msg )

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PHAL_txCANAbort()

void PHAL_txCANAbort	(	CAN_TypeDef *	bus,
		uint8_t	mbx )

PHAL_txCANMessage()

bool PHAL_txCANMessage	(	CanMsgTypeDef_t *	msg,
		uint8_t	mbx )

Find an empty TX mailbox and transmit a CAN message if one is found. Function will block until sucessful transmission of message until a specified timeout.

Parameters

can	CAN peripheral to transmit with
msgId	Message ID

Returns

true Sucessful TX of message.

false Unable to find empty message or transmit took too long.

PHAL_txMailboxFree()

bool PHAL_txMailboxFree	(	CAN_TypeDef *	bus,
		uint8_t	mbx )

Variable Documentation

APB1ClockRateHz

uint32_t APB1ClockRateHz

extern