CAN Transmit

Transmit message to CAN network

• Library:

• Simulink Support Package for Raspberry Pi Hardware / Communication

• 

Description

The CAN Transmit block transmits messages to the CAN network. This block works only with CAN shield based on MCP2515. For information on MCP2515, see MCP2515.

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

Ports

Input

Port1 — Message data

vector | scalar

Message data, specified as vector or scalar.

Data Types: uint8 | CAN Msg

Output

Port1 — Status

vector | scalar

Output status.

Dependencies

To enable this parameter, select Output Status

Parameters

Data is input as — Data input type

Raw data (default) | CAN Msg

Data input type used for transmitting messages.

Output Status — Indicates output status

off (default) | on

Select this option to indicate the status of message transfer. Status port outputs 0 for successful transmit and error codes in case of failure. Error codes are listed in this table.

00	00	ABTF	MLOA	TXERR	TXBO	TXEP	TXWAR
bit7	bit6	bit5	bit4	bit3	bit2	bit1	bit0

ABTF: Message Aborted Flag bit

MLOA: Message Lost Arbitration bit

TXERR: Transmission Error Detected bit

TXBO: Bus-Off Error Flag bit

TXEP: Transmit Error-Passive Flag bit

TXWAR: Transmit Error Warning Flag bit

Wait until data sent — Wait until data is sent

off (default) | on

When selected, the block waits for the time specified in the Time out in seconds parameter before transferring data.

Time out in seconds — Waiting time for sending data

1 (default) | Integer

Wait time for transferring data. After the specified time, the block times out.

Dependencies

To enable this parameter, select Wait until data sent.

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 or 29 bits long for the extended frame, 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 is input as to Raw data.

Identifier Type — Message identifier type

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

Message identifier type.

Dependencies

To enable this parameter, set Data is input as to Raw data.

Message Length — Value of message length

8 (default) | positive integer

Message length, in bytes. The maximum supported length is 8 bytes.

Dependencies

To enable this parameter, set Data is input as to Raw data.

Request Remote Frame — Enable remote message

off (default) | on

When selected, this block sends request for remote frames.

Dependencies

To enable this parameter, set Data is input as to Raw data.