Controller Area Network

Communicate with Raspberry Pi^® hardware using Controller Area Network (CAN) protocol

Leverage the capabilities of Controller Area Network (CAN) to efficiently design and implement robust and reliable CAN-based communication systems.

Blocks

CAN Transmit	Transmit message to CAN network
CAN Receive	Receive message from CAN network

Objects

canChannel Connection to CAN channel through specified device (Since R2021b)

Functions

`enableCAN`	Enable CAN interface (Since R2021b)
`disableCAN`	Disable CAN interface (Since R2021b)
`read`	Read messages from CAN channel (Since R2021b)
`write`	Write messages to CAN channel (Since R2021b)

Model Settings

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CAN Properties

Configure CAN interface	Configure the CAN interface number, type, bus speed, and transmit queue buffer size for the CAN interface (Since R2025a)
Number of CAN interfaces	Number of interfaces that are available in a CAN network (Since R2025a)
CAN interface	Name of CAN interface on network (Since R2025a)
CAN interface type	Select CAN interface type
CAN Bus Speed (kBit/s)	CAN bus speed in kilo bits per second
Transmit queue buffer size	Enter the transmit buffer queue size for a CAN interface (Since R2025a)
Allow All Messages	Allow all messages to pass through the acceptance filter
ID Type 1	Type of CAN message frame format for filter 1
Acceptance Mask 1	Acceptance mask value for filter 1
Acceptance Filter 1	Specify acceptance value for filter 1
Inverse Filter	Inverse the criterion that allows messages to pass through filter (Since R2021b)

Topics

Model Configuration Raspberry Pi Blockset
This section describes about the model configuration parameters.
Set Up Raspberry Pi CAN Shield on Your Host Computer
Connect Raspberry Pi CAN shield to your computer using the hardware setup screen.
Enable and Configure Raspberry Pi for SPI and CAN Communication Using MCP2515 CAN Controller
This section provides a comprehensive workflow to enable and configure the MCP2515 CAN interface on a Raspberry Pi board.
Setup Virtual CAN Interface
Setup virtual CAN interface before configuring CAN Transmit and CAN Receive blocks.

Featured Examples

Monitor Engine RPM Using Raspberry Pi CAN Blocks

Use Raspberry Pi® Blockset to monitor vehicle engine RPM and read the data on a web browser.

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Log CAN Bus Data on Raspberry Pi

Use Raspberry Pi® Blockset to monitor a controller area network (CAN) bus, perform basic CAN conversions, and log CAN data in a measurable data format (MDF) file. This example also showcases the inter-operability between a model deployed in Simulink® and a Python® program running simultaneously on Raspberry Pi hardware.

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Transmit and Receive Data Using Raspberry Pi CAN Blocks

To use Raspberry Pi® Blockset to transmit and receive data from the CAN network using the specified CAN device.

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