CAN Receive

Receive message from CAN network

• Library:

• Simulink Support Package for Raspberry Pi Hardware / Communication

• 

Description

The CAN Receive block receives messages from the CAN network. This block works only with CAN shield based on MCP2515. For information on MCP2515, see MCP2515. and delivers them to the Simulink^® model.

The CAN Receive block supports Raw data and CAN Msg as output types. To use CANdb (CAN database) file or to specify signals manually, use CAN Msg output type and CAN Unpack block. The CAN Unpack block is available from the Vehicle Network Toolbox. For information on CAN Unpack, see CAN Unpack.

Ports

Output

Data — Message data port

vector | scalar

Received message data, returned as a vector or scalar.

Data Types: uint8 | CAN Msg

Status — Status of output message

scalar

Status of the received output message.

Data Types: uint8

Error — Error codes

scalar

Error codes.

Dependencies

To enable this parameter, select Output Error.

00	00	00	00	RXWAR	RXEP	RX0OVR	RX1OVR
bit7	bit6	bit5	bit4	bit3	bit2	bit1	bit0

RX1OVR: Receive Buffer 1 Overflow Flag bit

RX0OVR: Receive Buffer 0 Overflow Flag bit

RXEP: Receive Error-Passive Flag bit

RXWAR: Receive Error Warning Flag bit

Remote — Remote message flag

scalar

Remote message flag.

Dependencies

To enable this parameter, select Output Remote.

Parameters

Data to be output as — Data output type

Raw data (default) | CAN Msg

Data type used for receiving messages.

Identifier Type — Message identifier type

Standard (11-bit identifier) (default) | Extended (29-bit identifier)

Message identifier type.

Dependencies

To enable this parameter, set Data to be output as to Raw data.

Message ID — Message identifier

100 (default) | numeric identifier of length 11 or 29 bits

Message identifier, which is 11 bits long for the standard frame size or 29 bits long for the extended frame size, specified in decimal, binary, or hex. For binary and hex formats, use bin2dec(' ') and hex2dec(' '), respectively, to convert the entry. The message identifier is coded into a message that is sent to the CAN bus.

Dependencies

To enable this parameter, set Data to be output as to Raw data.

Message Length — Length of message

8 (default) | positive integer

Message length.

Dependencies

To enable this parameter, set Data to be output as to Raw data.

Sample Time — Block sample time

0.1 (default) | double

Sample time.

Output Error — Output error codes

Select to output error codes if the message transfer fails.

Output Remote — Enable remote messages

Select to output remote messages.