Arduino digitalWrite using S-Function not working

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ravi kumar
ravi kumar 2017-3-13
回答： gdz 2023-2-1
hi it looks like there is some defect with Matlab S-Function Builder. A simple digitalWrite using S function block does not work. Can anybody point out any errors?
here is the s function settings;
libraries tab:
#ifndef MATLAB_MEX_FILE
#include <Arduino.h>
int val = 0;
#endif
discrete updates tab:
if(xD[0] != 1){
#ifndef MATLAB_MEX_FILE
pinMode(SW[0], INPUT);
#endif
xD[0] = 1;
}
outputs tab:
if(xD[0] == 1){
#ifndef MATLAB_MEX_FILE
val = digitalRead(SW[0]);
digitalWrite(out[0], val);
#endif
}
whats wrong with the code? I have doubt in global variable declaration.
any help is appreciated
thanks

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回答（1 个）

gdz
gdz 2023-2-1
The SW[0], out[0] are not defined.

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