hi this is my code to recieve data serial and show certain data

hello all,

i am trying to write an code in gui in which i can display the data sent by 8051 and receive through serial port is displayed in edit box separately, can anybody help me in correcting it as i am not able to retrieve data

function varargout = test1(varargin)
% TEST1 M-file for test1.fig
%      TEST1, by itself, creates a new TEST1 or raises the existing
%      singleton*.
%
%      H = TEST1 returns the handle to a new TEST1 or the handle to
%      the existing singleton*.
%
%      TEST1('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in TEST1.M with the given input arguments.
%
%      TEST1('Property','Value',...) creates a new TEST1 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before test1_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to test1_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

% Edit the above text to modify the response to help test1

% Last Modified by GUIDE v2.5 20-Feb-2012 22:38:43

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @test1_OpeningFcn, ...
                   'gui_OutputFcn',  @test1_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 test1 is made visible.
function test1_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 data (see GUIDATA)
% varargin   command line arguments to test1 (see VARARGIN)

serialPorts = instrhwinfo('serial');
nPorts = length(serialPorts.SerialPorts);
set(handles.coms, 'String', ...
    [{'Select a port'} ; serialPorts.SerialPorts ]);
set(handles.coms, 'Value', 2);   
% set(handles.rx_text, 'String', cell(1));

% Choose default command line output for test1
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes test1 wait for user response (see UIRESUME)
% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line.
function varargout = test1_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 data (see GUIDATA)

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

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

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

% --- Executes during object creation, after setting all properties.
function Tx_data_CreateFcn(hObject, eventdata, handles)
% hObject    handle to Tx_data (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 && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

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

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

% --- Executes during object creation, after setting all properties.
function baudrate_CreateFcn(hObject, eventdata, handles)
% hObject    handle to baudrate (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 && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

% --- Executes on selection change in coms.
function coms_Callback(hObject, eventdata, handles)
% hObject    handle to coms (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = cellstr(get(hObject,'String')) returns coms contents as cell array
%        contents{get(hObject,'Value')} returns selected item from coms

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

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

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

if strcmp(get(hObject,'String'),'connect') % currently disconnected
    serPortn = get(handles.coms, 'Value');
    if serPortn == 1
        errordlg('Select valid COM port');
    else
        serList = get(handles.coms,'String');
        serPort = serList{serPortn};
        serConn = serial(serPort, 'TimeOut', 1, ...
            'BaudRate', str2num(get(handles.baudrate, 'String')));

          try
              fopen(serConn);
              handles.serConn = serConn;

              % enable Tx text field and Rx button
              set(handles.Tx_data, 'Enable', 'On');
  %             set(handles.rxButton, 'Enable', 'On');

              set(hObject, 'String','Disconnect')
          catch e
              errordlg(e.message);
          end

      end
  else
      set(handles.Tx_data, 'Enable', 'On');
  %     set(handles.rxButton, 'Enable', 'Off');

      set(hObject, 'String','Connect')
      fclose(handles.serConn);
  end
  guidata(hObject, handles);

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

% Hints: get(hObject,'String') returns contents of rx_text as text
%        str2double(get(hObject,'String')) returns contents of rx_text as a double
try 
    RxText = fscanf(handles.serConn);
%     currList = get(handles.rx_text, 'String');
%     if length(RxText) < 1
%         RxText = 'Timeout @ ';
%         set(handles.rx_text, 'String', ...
%             [currList ; [RxText datestr(now)] ]);
%     else
%         set(handles.rx_text, 'String', ...
%             [currList ; ['Received @ ' datestr(now) ': ' RxText ] ]);
%     end
    set(handles.rx_text,'string', cellstr(RxText ));
catch e
    disp(e)
end

% --- Executes during object creation, after setting all properties.
function rx_text_CreateFcn(hObject, eventdata, handles)
% hObject    handle to rx_text (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 && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

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

Tx_data = get(handles.Tx_data, 'String');
fprintf(handles.serConn, Tx_data);

currList = get(handles.rx_text, 'String');
set(handles.rx_text, 'String', ...
 [currList ; Tx_data] );
% set(handles.rx_text, 'Value', length(currList) + 1 );

set(hObject, 'String', 'send');

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

set(handles.Tx_data,'string','')
% --- Executes on button press in clear_rx.
function clear_rx_Callback(hObject, eventdata, handles)
% hObject    handle to clear_rx (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
set(handles.rx_text,'string','')

function selected_edit1_Callback(hObject, eventdata, handles)
% hObject    handle to selected_edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of selected_edit1 as text
%        str2double(get(hObject,'String')) returns contents of selected_edit1 as a double

set(handles.selected_edit1,'string', cellstr(RxText(2:6) ));
% --- Executes during object creation, after setting all properties.
function selected_edit1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to selected_edit1 (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 && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

function selected_edit2_Callback(hObject, eventdata, handles)
% hObject    handle to selected_edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of selected_edit2 as text
%        str2double(get(hObject,'String')) returns contents of selected_edit2 as a double
set(handles.selected_edit2,'string', cellstr(RxText(2:9) ));

% --- Executes during object creation, after setting all properties.
function selected_edit2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to selected_edit2 (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 && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end

Answer 1

[Walter Roberson]

What style of uicontrol is rx_text ? You are setting its String as if it is a text uicontrol, but you are relying on it having a Callback which text uicontrol would not have ?

[Sunny]

Thank you for the response sir then what should b my uicontrol because my rx_text is editbox

[Sunny]

what is uicontrol sir