Protecting a Simulink block with a password

I want to protect a Simulink block (subsystem masked) with a password, so that nobody can open the block or modify the initialization parameters included in the mask parameters.

On the other hand, can I protect the m-files I have?

Answer 1

[Kaustubha Govind]

You can protect your Simulink subsystem by one of three methods:

1) Control user access to subsystems

2) Generate an S-function

3) Create a protected model from your subsystem, that can then be referenced from users' models.

You can protect MATLAB-files by using pcode.

[Indira]

Hi Kaustubha,

What kind of protection does the pcode give?

Cause I've converted my m-files to p-files but I can see the same code in both.

Thanks a lot.

[Kaustubha Govind]

The *.p file generated by pcode is of obscured form that is not human-readable. Did you use the "pcode" command?

[Indira]

Yes, I've used "pcode" command, at moment I am using p-files. Hey your information helped me a lot, but I have another question... I've generated a s-function block that requires some data from m-file, how can I define some parameters to the block?...

Thanks =)

[Kaustubha Govind]

Could you please post this as a new question? We'd like for questions to be easily found if another user looks for something similar. Thanks!

[Indira]

Done!

[stack programer]

Great but for sdr soure it is not work

Answer 2

[Senthilmurugan Mani]

Could you pls explain about these three method more in detailed

You can protect your Simulink subsystem by one of three methods:

1) Control user access to subsystems

2) Generate an S-function

3) Create a protected model from your subsystem, that can then be referenced from users' models.

You can protect MATLAB-files by using pcode.

Thanks in Advance

By Senthil