%% Get Started with J1939 Communication in Simulink
% This example shows you how to use J1939 blocks to directly send and receive Parameter Group (PG) messages in Simulink.
% Vehicle Network Toolbox provides J1939 Simulink blocks for receiving and transmitting Parameter Groups via Simulink models over Controller Area Networks (CAN). This example performs data transfer over a CAN bus using the J1939 Network Configuration, J1939 Node Configuration, J1939 CAN Transport Layer, J1939 Transmit and J1939 Receive blocks. It also uses MathWorks virtual CAN channels connected in a loopback configuration.
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%% Set Up J1939 Block Parameters
% Create a model to set up J1939 receive and transmit over the network. The model is configured to perform single frame transmission between two nodes defined in the J1939 DBC-file.
% Use a J1939 Network Configuration block and select file J1939.dbc. This J1939 database file consists of two nodes and a couple of single-frame and multiframe messages.
% Use a J1939 CAN Transport Layer block and set the Device to MathWorks virtual channel 1. The transport layer is configured to transfer J1939 messages over CAN via the specified virtual channel.
% Use basic Simulink source blocks to connect to a J1939 Transmit block. The J1939 Transmit block is set to queue data for transmit at each timestep when the Trigger port is enabled. For this example, a periodic trigger subsystem sends a high pulse every 50 milliseconds.
% Use the J1939 Receive block to receive the messages transmitted over the network.
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%% Visualize Signals Received on the Network
% Plot the results to see the vehicle signal values received over the network. The X-axis corresponds to the simulation timestep.
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