Overrun and Task Execution Time Profiling on Arduino
2 views (last 30 days)
Show older comments
MathWorks Support Team
on 30 Jul 2018
Edited: MathWorks Support Team
on 19 Apr 2024
I am deploying my Simulink model to Arduino hardware (Uno) and running an External mode or PIL simulation. When I decrease the sample time of the model below a certain threshold, I no longer get sensible readings from my sensor connect to my Arduino. Why is this happening?
Accepted Answer
MathWorks Support Team
on 18 Apr 2024
Edited: MathWorks Support Team
on 19 Apr 2024
A likely cause of this issue is from task overruns. A task overrun occurs if the target hardware is still performing one instance of a task when the next instance of that task is scheduled to begin. To determine if you are encountering overruns, please refer to the following documentation page:
This page outlines the process for detecting overruns and some methods you can employ to mitigate them. Please note that an option is to upgrade from the Uno to an Arduino with a more powerful processor, such as the Due.
To get a better understanding of the parts of your model that are causing overruns, you can profile execution time for your model running on the Arduino in PIL. Execution time profiling can be configured with the option Configuration Parameters > Code Generation > Verification > Measure task execution time. Please refer to the following documentation page for more information on profiling the execution of your generated code:
You can use this feature to determine how the various parts of your model that are affecting overruns and the minimal sample time needed to run the model without overruns.
0 Comments
More Answers (0)
See Also
Categories
Find more on Run on Target Hardware in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!