Your MATLAB files need to be on the MATLAB path. If you execute:

which -all filename.m

MATLAB will find the files if they are on the path.

This link should help:

http://www.mathworks.com/help/releases/R2011b/techdoc/matlab_env/br7ppws-1.html#bsdv_lr

I’m not sure if you will reply to a comment on a blog post written 4 years ago but here goes:

I managed to implement my own Simulink library following the instructions posted here, everything seems to work but there are a few things that I havent found a solution for:

I want to implement a library block which depends on several level-2 s-functions written in m code. The m code are written in terms of different function files – the Simulink block relies on them to access functions not normally accessible within Simulink. The library block fails to function if the .m code for the s-function is not in the same directory, claiming that the file is not found. If i do include these .m files in the same directory, everything is fine, however, i want to avoid having to include these .m files in every instance that this library is used. Even when specifying a full directory path (ie: C:\Program Files\MATLAB\R2008a\toolbox\\.m) in the M-S-function m-file name entry, it fails to find it. I’ve ensured that all the s-function m code is within the same directory path as the library model file. When running the ‘path’ command, the directory corresponding to my custom library is visible, so ideally it should be able to access my custom s-functions contained inside them as well.

I was looking at some examples of how the standard Simulink libraries are implemented, many of them use level 1 s-functions to interact with .mex files, located deep within the sub-directories of the /toolbox/ folder. In the slblock.m file for each library, there is no mention of the directory paths for these dependent mex files. Is there some command i should be aware of that updates Simulink’s Library’s access to .mex/s-function code that i should be aware of?

Thanks,

I created a custom library in Simulink 2008a on Windows. It contains few sublibraries and one block. Library appears in the Library Browser but when I select it, only the one block is displayed on the right side of the Browser. Sublibraries are not visible. When I open the library by right clicking on it in the tree view and selecting ‘Open MyLibName library’, I can normally browse through sublibraries. Any clues?

Thanks in advance!

I have created a module using Xilink black box with VHDL. I added to simulink library using slblocks.m file. but when i am trying to use my lib it showing error. VHDL file not found. I kept all VHDL files in library folder only. any suggestion plz?

thanks in advance

Regards
Rajkiran