MATLAB: Exclude Signal from Delay Balancing

Question

I have a DocBlock based Blackbox implementation for IO Communication in a HDL Coder Simulink Project.

It requires direct GPIO Connection and has a Output for postprocessing through Simulink generated HDL.

How can I keep delay balancing on, for the whole system, while routing the IO connections of the Blackbox directly to GPIOs?

Currently the IOs get balanced as well which obviously messes with their timing.

I thought giving the Signals Inf Sampling Time or linking the Blackbox IO directly to the GPIOs(through their HDLCoder Properties) should work, but the first is not allowed and the second is simply ignored. Is there a way to achieve this? Or is it simply disabling global delay balancing to give the GPIO Connections a way out and then enabling it for other subsystems?

Thank you.

Answer 1

Can you share your model?

This example shows how to balance delays in specific parts of a design, without balancing delays on the entire design.

https://www.mathworks.com/help/hdlcoder/examples/control-the-scope-of-delay-balancing.html

I wonder if it can address your modeling problem.

Thanks