[Simulink Support Package for Arduino Hardware] CAN Recieve Block issue

Hello,

I am a student currently using the Simulink Support Package for Arduino Hardware to implement CAN communication.

The issue I am facing is that the CAN Receive block does not receive any data when messages are sent using an Extended ID. I am using an Arduino MKR WiFi 1010 along with the MKR CAN Shield. My Simulink model is used to send CAN messages to a motor and receive CAN messages from the motor.

The Simulink model (I attach the file.) I created, along with the configurations for the CAN Transmit and CAN Receive blocks, which are shown below. (The Fixed Step Size is set to 0.002.)

To verify the transmitted values, I used a ‘USB to CAN Analyzer’. (link: https://www.seeedstudio.com/USB-CAN-Analyzer-p-2888.html?srsltid=AfmBOooUz103F-Q3hiV6ocaQKvJwR2POvokjnFucYIHxf77tjr7DDkJe) As a result, I confirmed that messages with Extended IDs 0x302 (=770)and 0x2902 (10498) exist on the bus. (0x302: Arduino transmit, 0x2902 Arduino receive)

However, when checking the results from the To Workspace block, I found that no data is being received, unlike what I observed with the USB CAN Analyzer.

To rule out a hardware issue, I also tested with the MATLAB Support Package for Arduino Hardware, and it worked correctly. The MATLAB code (attached) successfully received messages.

clear arduinoMKRObj;
clear rxObj1;

%% MKR
arduinoMKRObj = arduino('COM18','MKR1010','Libraries','CAN')

rxObj1 = canChannel(arduinoMKRObj, 'MKR CAN Shield',"BusSpeed", 1000e3)
runtime = 10; % time to read (s)
tic; % start reading

while toc < runtime
    % read data
    readMsg = read(rxObj1);
    if ~isempty(readMsg)
        disp('Data received:');
        disp(readMsg);
    else
        disp('No data received');
    end
end

What should I do next? Could this be a Simulink-related issue? Any help would be greatly appreciated.

Thank you.

Answer 1

[Rishav]

Hi 순호 권,

Please refer to the steps mentioned in the following MATLAB Answers post and let me know if that works for you:

https://www.mathworks.com/matlabcentral/answers/2122261-arduino-due-can-bus-communication-via-simulink?s_tid=answers_rc1-1_p1_Topic

Answer 2

[Clement]

Hi @순호 권

Have you tried checking the target hardware resources in the Configuration Parameters (Hardware Settings), and ticked "Allow All Messages" in CAN Properties?

I had the same problem where I stumbled across your question, and it turns out that I hadn't ticked this checkbox when deploying the model the first time around.

[순호 권]

@Clement

I changed that settings, and it worked!

Thank you!!