Communication in MATLAB
Hardware connection functions define a connection to a CAN interface hardware that establishes a physical connection to a CAN bus. The CAN Transmit Workflow shows how to pack and transmit CAN messages with MATLAB®. You can also employ event-based message transmission; load and replay messages. The CAN Receive Workflow shows how to receive and unpack CAN messages.
For building Simulink® models that use CAN blocks to transmit and receive messages on the network, see Communication in Simulink.
Functions
Properties
Topics
CAN Messages
- Transmit and Receive CAN Messages
Discover CAN devices and communicate over a network. - Filter Messages
Set up filters to accept messages based on specified parameters. - Configure Silent Mode
Observe and analyze message activity without affecting the network state or behavior. - Multiplex Signals
Use multiplexing to represent multiple signals in one signal location in a CAN message’s data. - MathWorks Virtual Channels
Emulate virtual CAN channels provided with the toolbox.
Message Database
- Load .dbc Files and Create Messages
Access message and signal information in a CAN database. - View Message Information in a CAN Database
Look up information on message definitions. - View Signal Information in a CAN Message
Get signal definition information on a specific signal or all signals in a CAN message with database definitions attached. - Attach a CAN Database to Existing Messages
You can attach a database file to messages and apply the message definition defined in the database.
Featured Examples
Get Started with CAN Communication in MATLAB
Use CAN channels to transmit and receive CAN messages. It uses MathWorks® virtual CAN channels connected in a loopback configuration.
Get Started with CAN FD Communication in MATLAB
Use CAN FD channels to transmit and receive CAN FD messages. It uses MathWorks® virtual CAN FD channels connected in a loopback configuration.
Get Started with SocketCAN Devices
Identify, set up, and configure SocketCAN devices in a Linux® terminal, then access them from MATLAB® using Vehicle Network Toolbox™.
Use DBC Files in CAN Communication
Create, receive and process messages using information stored in DBC files. This example describes the workflow for a CAN network, but the concept demonstrated also applies to a CAN FD network.
Use Message Filters in CAN Communication
Use CAN message filters to allow only messages that contain specified identifiers to pass through a channel. It uses MathWorks® virtual CAN channels connected in a loopback configuration. This example describes the workflow for a CAN network, but the concept demonstrated also applies to a CAN FD network.
Use Message Reception Callback Functions in CAN Communication
Use a callback function to process messages received from a CAN channel. It uses MathWorks® virtual CAN channels connected in a loopback configuration. This example describes the workflow for a CAN network, but the concept demonstrated also applies to a CAN FD network.
Periodic CAN Communication in MATLAB
How to configure CAN channels and messages for transmit messages periodically. It uses MathWorks® virtual CAN channels connected in a loopback configuration.
Event-Based CAN Communication in MATLAB
Configure CAN channels and messages for transmit messages on event. It uses MathWorks® virtual CAN channels connected in a loopback configuration.
Use Relative and Absolute Timestamps in CAN Communication
Use the InitialTimestamp property of a CAN channel to work with relative and absolute timestamps for CAN messages. It uses MathWorks® virtual CAN channels connected in a loopback configuration. This example describes the workflow for a CAN network, but the concept demonstrated also applies to a CAN FD network.
Forward Collision Warning Application with CAN FD and TCP/IP
Execute a forward collision warning (FCW) application with sensor and vision data replayed live via CAN FD and TCP/IP protocols. Recorded data from a sensor suite mounted on a test vehicle are replayed live as if they were coming through the network interfaces of the vehicle. Vehicle Network Toolbox™ and Instrument Control Toolbox™ provide these interfaces. This setup is used to test an FCW system developed using features from Automated Driving Toolbox™. For assistance with the design and development of actual FCW algorithms, refer to the example Forward Collision Warning Using Sensor Fusion.
Decode and Write CAN Data in MDF Files
Import and decode CAN data from an MDF file in MATLAB for analysis, and write the decoded data back to the same file.
Decode CAN Data from BLF Files
Import and decode CAN data from BLF files in MATLAB® for analysis. The BLF file used in this example was generated from Vector CANoe™ using the "CAN - General System Configuration (CAN)" sample. This example also uses the CAN database file, PowerTrain_BLF.dbc, provided with the Vector sample configuration.
Class-Based Unit Testing of Automotive Algorithms via CAN
Validate the output of a cruise control algorithm using the Vehicle Network Toolbox™ and MATLAB® class-based unit testing framework.
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