%tempinput.m

%main MATLAB program that is called to start the commuication of the ATMEL

%this program opens the serial port and tells the ATMEL to start transmitting

%the temperature data bitstream

%program also calls UpdateTempGraph, UpdateHTML and get_threshold when needed

%opens serial port, com2 to communicate with the ATMEL

HANDLE = cportopen('com2');

%sets all of the necessary parameters to communicate with the ATMEL

stat = cportconfig(HANDLE,'BaudRate','9600','fDtrControl','OFF','ReadTotalTimeoutMultiplier','1');

%clears the serial port line

cportreset(HANDLE);

%TempData hold the values of the temperature

%Initialize the temperature data values to null

TempData = [];

%TempDate holds the time of when the temperature was taken

%Initialize the temperature date values to null

TempDate = [];

%TempDateS holds the time of when the temperature was taken

% in a string format

TempDateS = [];

%clears err last error message

lasterr('');

%zeros random loop varibles

printgraph = 0;

resetgraph = 0;

stop = 0;

not6char = 0;

gottaG = 0;

newthresh = '000';

donewithgui = 0;

%tell ATMEL to GO!

temp=cportwrite(HANDLE,'g','');

%get the data and run until there is an error or user hits control-C

while(~stop)

try

while (1)

%get the current temp, fan and button status

%the current Data being read in from the ATMEL

newTempData = [];

while((not6char~=6))

temp = cportgetchar(HANDLE,1);

if (isempty(temp))

disp 'WAITING for ATMEL'

overnow = 0;

stopnow = now;

while((stopnow + 1e-5) > overnow)

overnow = now;

end

else

newTempData = [newTempData,temp];

not6char = size(newTempData,2);

end

end

not6char = 0;

if(newTempData(1) ~= 't')

disp 'bitline not alligned'

newTempData

stop = 1;

else

newTempData=newTempData(2:6);

newTempData=double(newTempData)-48;

end

if (newTempData(5))

close all;

get_threshold;

uiwait;

%tell the ATMEL the Thereshold Temp

temp=cportwrite(HANDLE,newthresh,'');

gottaG = 0;

while(~gottaG)

temp = cportgetchar(HANDLE,1);

%wait for the ATMEL to get the data and respond with 'g'

if (isempty(temp))

disp 'WAITING for ATMEL g'

overnow = 0;

stopnow = now;

while((stopnow + 1e-5) > overnow)

overnow = now;

end

else

gottaG = (temp(1) =='g');

end

end

end

if(~gottaG)

%updates the HTML file

UpdateHTML

%updates the graph and logging of Temperature data

UpdateTempGraph

else

gottaG = 0;

end

while (~go)

%wait for Update functions to finish

end

end %while(1)

catch %if uart connection is lost or user hits control 'c'

if(~isempty(lasterr)) %an error occured

lasterr

disp 'error occured'

cportclose(HANDLE);

end

stop = 1; % stop the program when one hits ctr c

end %end catch loop

end %while(~stop) loop , main outsode loop

%close serial port

cportclose(HANDLE);