Channel Selection Changed

If you are using Simulink library files to manage different components of your software, then you may encounter instances where the channel selection in OpenECU I/O blocks changes. The OpenECU blocks initialize when a model is loaded to display I/O channels for the selected target. The initialization code identifies the target by searching the model for a Model Identification block.

• If the block is found, the target is identified, and the I/O options are narrowed to that specific target.

• If not, the target is undetermined, and all I/O options are displayed.

There are two ways to mitigate this:

1. Keep as many OpenECU blocks in the master model as possible, limiting library models to Simulink blocks.

2. Include a Model Identification block at the top level of each library model, configured with the master model’s target.

Notes:

• Channel selection usually defaults to the first option, possibly causing duplication errors.

• Channel options may also change when switching target ECUs or upgrading OpenECU versions. MATLAB usually prints a warning.