Hello when I try to call this function I get the error :Error using serial_setup (line 18) Not enough input arguments.

function [s]=serial_setup(com)
s=serial(com);
set(s,'Baudrate',9600);
set(s,'Databits',8);
set(s,'Stopbits',1);
set(s,'Parity','none');
fopen(s);

b=99;
while b~='a'
b=fread(s,1,'uchar');
end
fscanf(s,'%d');

fprintf(s,'%c','a');

success=fscanf(s,'%c');
success(and)=[]; %delete ASCII 13
success(and)=[]; %delete ASCII 10
if success=='Serial Setup'
    xbox=msgbox(success);uiwait(xbox);
end

Answer 1

[Walter Roberson]

You cannot just run the function by clicking on the green Run button. You need to invoke it passing in a character vector that is the name of a serial port on your system. For example,

s = serial_setup('COM7');