How to use User Defined Function in Simulink ?

Hello everyone;

I have a problem using User Defined Blocks in simulink. I have a simple MATLAB code and I want to create a block in simulink that do the job I specified.

The code defines a DiBit Encoder, that accepts a binary stream of bits, and produce two outupts (I and Q). Where I is the bits in stream with odd index number, and Q is the stream of bits in the sequence with even index number.

Here is the code:

function [I,Q] = DiBit_Encoder(x)

    sizeX = length(x)/2;
    y = reshape(x, 2, sizeX);

    I = y(1, 1:end);
    Q = y(2, 1:end);
end

How, and where, should I put this code in simulink blocks? What is the block name ? and if there is some needed editing on the code please tell me!

Regards.

Answer 1

[TAB]

You can place yor MATLAB code into User-Defined functions/Embedded MATLAB Function function block. Go through its help doc to know how to use it.

[Sadi Altamimi]

I try that, and I face problems ..

So I need step by step instruction :)