% Author - Prashant Patil
% 12/16/2011
% sends the character p throgh serial port and recieve it back ( you need
% to burn the serial code in uC)

% Find a serial port object.
obj1 = instrfind('Type', 'serial', 'Port', 'COM5', 'Tag', '');

% Create the serial port object if it does not exist
% otherwise use the object that was found.
if isempty(obj1)
    obj1 = serial('COM5');
else
    fclose(obj1);
    obj1 = obj1(1)
end

% Connect to instrument object, obj1.
fopen(obj1);

% Configure instrument object, obj1.
set(obj1, 'BaudRate', 1200);
 
set(obj1, 'Terminator', {126,126});

set(obj1, 'StopBits', 2.0);

 
data = query(obj1,'p');