Why do I receive this error of "evaluating TimerFcn", "'BuildDirOrModelName' is invalid" in command window of Matlab? How this can be fixed?

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Shubham
Shubham 2024-6-20
回答： Sandeep Mishra 2024-8-13
This is the exact msg that I see in command Window. (I am using Simulink App with Simulink realtime - Speedgoat Hardware for my HIL Test)
Error while evaluating TimerFcn for timer 'timer-4'
Unable to get 'Value' parameter value on target computer 'TargetPC1': The value of 'BuildDirOrModelName' is invalid. Arguments for coder.getCodeDescriptor should be character vectors.
  1 个评论
Matlab Pro
Matlab Pro 2024-6-24
Hi @Shubham
In order to help you - please send the code sample
Anyhow - it is obviouse that the code poointed by the TimerFct is doing the error.
Can you add a breakpoint and debug?

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回答（1 个）

Sandeep Mishra
Sandeep Mishra 2024-8-13
Hi Shubham,
I recognize that you are using Simulink Real-Time with Speedgoat hardware for HIL test and facing the following error : “Arguments for coder.getCodeDescriptor should be character vectors”.
To resolve the issue, you can refer to the following MATLAB Answers post on “Real-time application running on a Speedgoat” and “Slrealtime Instrument” documentation respectively:
  1. https://www.mathworks.com/matlabcentral/answers/517628-how-can-i-create-an-app-designer-app-to-control-tune-and-visualize-my-real-time-application-running
  2. https://www.mathworks.com/help/releases/R2022b/slrealtime/api/slrealtime.instrument.html
I hope it helps.

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