Using 'char' within an embedded matlab function (simulink)

Hi Everyone,

When implementing the following code in a regular m file, I get no error:

data = zeros(16,1);

new_gens = char('Tegeta','Ngaka','Kiwira_1','Mchuchuma','Mufindi','Kinyerezi','Ubungo_Dar','Mwanza','Nyasa_Coal','Kihansi_2','Mpanga','Masigira','Ruhudji','Rumakali','Ikondo','Taveta');
filename2 = 'built_new.txt';
fid = fopen(filename2, 'w');

for i = 1:16

      fprintf(fid,'pBuilt("%s") = %d;\r\n',new_gens(i,:),data(i));

end

fclose(fid);

However, when I use the same code within an embedded matlab function within simulink, I obtain the following error:

This call-site passes more inputs to this function than it can accept.

I checked that 'char' can be used within such simulink functions and it should work just fine. Do you know how to fix this?

I also tried making 'char' an extrinsic function and I received an error stating that the particular line was ignored since 'char' can be used within the simulink function. It then gave me an error stating:

subscripting into an mxArray is not supported

Again, I'm not sure what to do here so your help would be greatly appreciated!

Rhonda

Answer 1

[Walter Roberson]

Simulink does not support signals of type char . You need to use a vector of the numeric values of the characters. For example,

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