Known Software and Documentation Problems :: Simulink 5.1 Release Notes (Simulink® Release Notes)

Simulink® Release Notes

Known Software and Documentation Problems

This section describes known software problems in Version 5.1.

If you are viewing these Release Notes in PDF form, please refer to the HTML form of the Release Notes, using either the Help browser or the MathWorks Web site and use the link provided.

Changing a Subsystem Port Number Can Corrupt a Model

Changing the number of an input or output port number in a subsystem can cause an extra port to be added to the subsystem block in the parent system.

To fix the problem,

Copy the contents of the subsystem to the clipboard.
Delete the old subsystem block.
Create a new subsystem block in its place.
Copy the old subsystem contents from the clipboard into the new subsystem.
Reconnect the subsystem.

Model File Names Limited to 1280 Characters

Model file names, including their complete path names, are limited to a maximum length of 1280 characters. Unpredictable results, up to and including model file corruption, can occur if the name is longer than this limit.

Compiling Ada S-Functions with GNAT Ada Compiler

In this release, you cannot compile Ada S-Functions with a version of the GNAT Ada Compiler more recent than Version 3.13p. Please follow the instructions in Solution Number 34793 and download the fix.

http://www.mathworks.com/support/solutions/data/34793.shtml

Specifying Include Directories for Building Ada S-Functions

In this release, the command

```
    mex -ada -I ./foo adasfcn.ads 
```

ignores the -I ./foo switch that specifies addition directories to look for source/include files. Please follow the instruction in Solution number 34790 to work around this limitation.

http://www.mathworks.com/support/solutions/data/34790.shtml

Deadzone Block Result Differs in Code Generation

In simulation, the Deadzone block outputs NaN when input is NaN while it outputs 0 in Real-Time Workshop code generation. This bug is planned to be fixed in a future release.

Upgrading from an Earlier Release Simulink 5.0.1 Release Notes