# how to convert file.m into block in Simulink ?

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Henry Buck on 3 Mar 2016
Commented: Henry Buck on 4 Mar 2016
hi,
I wrote a function that produce 40 binary bits vector according to another 20 bits vector. In Matlab it works ok.
I want to convert it into a blockqmodel in Simulink.
Anybody knows how to do it ?
for example:
function gate_h = gate_array(I_H, indx_h)
no_cells = 20;
if(I_H > 0)
TMP_reg = [zeros(1, no_cells-indx_h), ones(1, indx_h)];
else
TMP_reg = [ones(1, indx_h), zeros(1, no_cells-indx_h)];
end
bitpatterns = {[0 1], [1 0]};
gate_h = cell2mat(bitpatterns(TMP_reg + 1));
Thanks, Henry

Walter Roberson on 4 Mar 2016
Try using the following as a MATLAB Function block
function gate_h = gate_array(I_H, indx_h)
no_cells = 20;
gate_h = zeros(1, no_cells * 2);
gate_h(1:2:indx_h*2) = 1;
gate_h(indx_h*2+1:2:no_cells*2-1) = 1;
if I_H > 0
gate_h = 1 - gate_h;
end
Henry Buck on 4 Mar 2016
Hi,
For changing direction of the gate_h bits vector to complement gate_l bit vector, what do I need to change ? for example: in one block I got gate_h= [0 1 0 1 0 1 0 1 1 0 1 0]. and in anothe block I want to get gate_l = [1 0 1 0 1 0 1 0 0 1 0 1].
its like gate_l is complement of gate_h

Rick Rosson on 4 Mar 2016
Have you tried using the MATLAB Function block? It's in the User Defined Functions sub-library in base Simulink.
##### 2 CommentsShowHide 1 older comment
Henry Buck on 4 Mar 2016
Hi, I made a simple change and it seems to be works ok.
%%%%%%%%%%%% function gate_h = gate_array_h6(I_H, indx_h)
no_cells = 20; gate_h = zeros(1, no_cells * 2); gate_h(1:2:indx_h*2) = 0; gate_h(indx_h*2+1:2:no_cells*2-1) = 0;
if I_H > 0 gate_h(2:2:(no_cells-indx_h)*2) = 1; gate_h((no_cells-indx_h)*2+1:2:no_cells*2-1) = 1; else gate_h(1:2:indx_h*2-1) = 1; gate_h((indx_h+1)*2:2:no_cells*2) = 1; end %%%%%%%%%%%%
No E R R O R at all ....:-)).
Thanks a lot, Henry

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