wqm123.m

用matlab编写的一个声卡做为采集输入的示波器

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

% Last Modified by GUIDE v2.5 23-Mar-2007 12:52:45

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @daqscope_OpeningFcn, ...
                   'gui_OutputFcn',  @daqscope_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 daqscope is made visible.
function daqscope_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 daqscope (see VARARGIN)
openDAQ=daqfind;
for i=1:length(openDAQ);
stop(  openDAQ  );
delete(openDAQ);
end
% Choose default command line output for daqscope
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = daqscope_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;


% --- Executes on button press in daqstop.
function daqstop_Callback(hObject, eventdata, handles)
% hObject    handle to daqstop (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
if isvalid(handles.ai)
    stop(handles.ai);
    delete(handles.ai);
end

% --- Executes on button press in daqstart.
function daqstart_Callback(hObject, eventdata, handles)
% hObject    handle to daqstart (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
ai=analoginput('winsound');
addchannel(ai,1);
sampleRate=8000;
handles.ai=ai;
set(ai,...
    'SampleRate',sampleRate, ...
    'TriggerRepeat',1, ...
    'TriggerType','Manual',...
    'SamplesPerTrigger',floor(400),...
    'TimerPeriod',0.1, ...
    'Timerfcn',@localTimerAction,...
    'UserData',handles);
guidata(handles.daqscope,handles);
start(handles.ai); 
trigger(handles.ai); 
function localTimerAction(obj,event)
h=obj.UserData;
d=peekdata(obj,obj.SamplesPerTrigger);
cla;
line(1:length(d),d);
drawnow;

fid = fopen('wqm.dat','w');
%fprintf(fid,'int array[]={\\');
fprintf(fid,'\n');
fprintf(fid,'\t\t\t');
for i=1:200
   fprintf(fid,'%d,',d);
   if(mod(i,10)==0)
     % fprintf(fid,'\\');
      fprintf(fid,'\n');
      fprintf(fid,'\t\t\t');
   end
end

fseek(fid,-1,0);
%fprintf(fid,'};\n');
fclose(fid);