CAN Frames Reception functions

CAN Frames Reception functions. More...

Collaboration diagram for CAN Frames Reception functions:

Functions
void	CAN_FIFORelease (CAN_TypeDef *CANx, uint8_t FIFONumber)
	Releases the specified receive FIFO. More...
uint8_t	CAN_MessagePending (CAN_TypeDef *CANx, uint8_t FIFONumber)
	Returns the number of pending received messages. More...
void	CAN_Receive (CAN_TypeDef *CANx, uint8_t FIFONumber, CanRxMsg *RxMessage)
	Receives a correct CAN frame. More...

Detailed Description

CAN Frames Reception functions.

 ===============================================================================
                ##### CAN Frames Reception functions #####
 ===============================================================================  
    [..] This section provides functions allowing to 
      (+) Receive a correct CAN frame
      (+) Release a specified receive FIFO (2 FIFOs are available)
      (+) Return the number of the pending received CAN frames

 ===============================================================================
                  ##### CAN Frames Reception functions #####
 ===============================================================================  
    [..] This section provides functions allowing to 
         (+) Receive a correct CAN frame.
         (+) Release a specified receive FIFO (2 FIFOs are available).
         (+) Return the number of the pending received CAN frames.

Function Documentation

void CAN_FIFORelease	(	CAN_TypeDef *	CANx,
		uint8_t	FIFONumber
	)

Releases the specified receive FIFO.

Parameters

CANx	where x can be 1 or 2 to select the CAN peripheral.
FIFONumber	FIFO to release, CAN_FIFO0 or CAN_FIFO1.

Return values

None

Parameters

CANx	where x can be 1 to select the CAN1 peripheral.
FIFONumber	FIFO to release, CAN_FIFO0 or CAN_FIFO1.

Return values

None

Definition at line 799 of file stm32f4xx_can.c.

uint8_t CAN_MessagePending	(	CAN_TypeDef *	CANx,
		uint8_t	FIFONumber
	)

Returns the number of pending received messages.

Parameters

CANx	where x can be 1 or 2 to select the CAN peripheral.
FIFONumber	Receive FIFO number, CAN_FIFO0 or CAN_FIFO1.

Return values

NbMessage

: which is the number of pending message.

Parameters

CANx	where x can be 1 to select the CAN1 peripheral.
FIFONumber	Receive FIFO number, CAN_FIFO0 or CAN_FIFO1.

Return values

NbMessage

: which is the number of pending message.

Definition at line 822 of file stm32f4xx_can.c.

void CAN_Receive	(	CAN_TypeDef *	CANx,
		uint8_t	FIFONumber,
		CanRxMsg *	RxMessage
	)

Receives a correct CAN frame.

Parameters

CANx	where x can be 1 or 2 to select the CAN peripheral.
FIFONumber	Receive FIFO number, CAN_FIFO0 or CAN_FIFO1.
RxMessage	pointer to a structure receive frame which contains CAN Id, CAN DLC, CAN data and FMI number.

Return values

None

Parameters

CANx	where x can be 1 to select the CAN1 peripheral.
FIFONumber	Receive FIFO number, CAN_FIFO0 or CAN_FIFO1.
RxMessage	pointer to a structure receive frame which contains CAN Id, CAN DLC, CAN data and FMI number.

Return values

None

Definition at line 750 of file stm32f4xx_can.c.