untitled.m

cyclic redudndancy check program in mat lab

function varargout = untitled(varargin)
% UNTITLED M-file for untitled.fig
%      UNTITLED, by itself, creates a new UNTITLED or raises the existing
%      singleton*.
%
%      H = UNTITLED returns the handle to a new UNTITLED or the handle to
%      the existing singleton*.
%
%      UNTITLED('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in UNTITLED.M with the given input arguments.
%
%      UNTITLED('Property','Value',...) creates a new UNTITLED or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before untitled_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to untitled_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Copyright 2002-2003 The MathWorks, Inc.

% Edit the above text to modify the response to help untitled

% Last Modified by GUIDE v2.5 07-Apr-2008 19:33:38

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @untitled_OpeningFcn, ...
                   'gui_OutputFcn',  @untitled_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before untitled is made visible.
function untitled_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user dat (see GUIDATA)
% varargin   command line arguments to untitled (see VARARGIN)

% Choose default command line output for untitled
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes untitled wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = untitled_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user dat (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;



function dat_Callback(hObject, eventdata, handles)
% hObject    handle to dat (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user dat (see GUIDATA)

% Hints: get(hObject,'String') returns contents of dat as text
%        str2double(get(hObject,'String')) returns contents of dat as a double


% --- Executes during object creation, after setting all properties.
function dat_CreateFcn(hObject, eventdata, handles)
% hObject    handle to dat (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on button press in CalcCRC.
function CalcCRC_Callback(hObject, eventdata, handles)
% hObject    handle to CalcCRC (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user dat (see GUIDATA)

%---------------------------------- My Code -----------------------------%
data=get(handles.dat, 'String')   %get the value of data as string
A = strread(data,'%u')    % convert data to a coloumn matrix of integers
B=A'                      %converts the column matrix to row matrix
Divisor=get(handles.divisor, 'String')
C= strread(Divisor,'%u')
D=C'
if (length(B)==7 && length(D)==5)
crc=mycrc(B,D,1)  %call mycrc function to generate crc
result=[B,crc]
set(handles.reslt,'String',...
    num2str(result))           %set the value of 2nd edit box to result

set(handles.InfoBox,'String',...
    ['Result : ',...
num2str(result),'  '])           %set the value of the text box to result
else
    set(handles.InfoBox,'String',...
    ['Data should be of 7 bits & divisor should be of 5 bits'])        
end

function reslt_Callback(hObject, eventdata, handles)
% hObject    handle to reslt (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user dat (see GUIDATA)

% Hints: get(hObject,'String') returns contents of reslt as text
%        str2double(get(hObject,'String')) returns contents of reslt as a double


% --- Executes during object creation, after setting all properties.
function reslt_CreateFcn(hObject, eventdata, handles)
% hObject    handle to reslt (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on button press in VerifCRC.
function VerifCRC_Callback(hObject, eventdata, handles)
% hObject    handle to VerifCRC (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user dat (see GUIDATA)

%------------------------------- My Code -------------------------------%
data=get(handles.reslt, 'String')%get the value of data as string
A = strread(data,'%u')           % convert data to a coloumn matrix of integers
B=A'                             %converts the column matrix to row matrix
Divisor=get(handles.divisor, 'String')
C= strread(Divisor,'%u')
D=C'
check=mycrc(B,D,2)     %call mycrc function to check crc

if check==[1]                    %if check is successful
set(handles.InfoBox,'String',...
    [get(handles.InfoBox,'String'),...
'CRC check successful '])        %set the value of the text box to result
end

if check~=[1]                    %if check is not successful
set(handles.InfoBox,'String',...
    [get(handles.InfoBox,'String'),...
'CRC check failed,data got corrupt on the way'])%set the value of the text box to result
end

% --- If Enable == 'on', executes on mouse press in 5 pixel border.
% --- Otherwise, executes on mouse press in 5 pixel border or over InfoBox.
function InfoBox_ButtonDownFcn(hObject, eventdata, handles)
% hObject    handle to InfoBox (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user dat (see GUIDATA)




% --- Executes on button press in RandmDatGen.
function RandmDatGen_Callback(hObject, eventdata, handles)
% hObject    handle to RandmDatGen (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user dat (see GUIDATA)

R = rand(1,7)
Y = round(R)
set(handles.dat, 'String',...
    num2str(Y))


function divisor_Callback(hObject, eventdata, handles)
% hObject    handle to divisor (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user dat (see GUIDATA)

% Hints: get(hObject,'String') returns contents of divisor as text
%        str2double(get(hObject,'String')) returns contents of divisor as a double


% --- Executes during object creation, after setting all properties.
function divisor_CreateFcn(hObject, eventdata, handles)
% hObject    handle to divisor (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end