MATLAB: Converting M-file into a block function in simulink-2

convertingsimulink

 I use a block "Level-2 M-file S-Function", M-file name = duong_truyen, I get a error: "Eroor due to multiple causes --> Too many input arguments.-->Error evaluating the initialization for M-S-Function 'duong_truyen'.Too many input arguments.The following is the MATLAB call stack (file names and line numbers) that produced this error:"
  function [] = duong_truyen()
     %--------------------------------









     open('demo_layout.fig');
     set(gcf,'name','Duong Truyen');
     set(gcf,'NumberTitle','off');
     %--------------------------------
     % Lay vi tri truc toa do
     placeHolderName = 'wrapAx';
     thisAx = findobj('Tag',placeHolderName);
     thisPos = get(thisAx,'position');        % lay vi tri cua thisAx
     delete(thisAx); 
     %--------------------------------
     wrapDial = dial('refVal',0,...       % Val_ diemef
         'refOrientation',90*pi/180,...   % Orientation _ su dinh huong
         'valRangePerRotation',360, ...   % pham vi quay
         'Min',0,...                      % nho nhat
         'Max',359,...                    % lon nhat
         'doWrap',1,...                   % wrap _ bao phu
         'Value',0,...                    % gia tri
         'Position',thisPos,...           % vi tri = thisPos
         'VerticalAlignment','bottom',... % duowng thang dung = day, phan    
         'Tag','wrapDial',...             % Tag = wrapDial
         'CallBack',@wrap_cb,...          % goi ham "wrap_cb"
         'titleStr','Keo kim quay',... % chuoi dau de (tit) = 'Wrapping' on
         'titlePos','top',...             % vi tri tit = dinh
         'tickVals', [0 90 180 270],...   % gia tri duowng tick
         'tickStrs',{'N'  'E'  'S'  'W'});  % chuoi ghi o duowng tick
     %--------------------------------
     % Thiet lap mau.
     faceColour = get(wrapDial.panelHndl,'facecolor');                      set(findobj('Tag','wrapText'),'BackgroundColor',faceColour,'ForegroundColor','r');
     set(findobj('Tag','wrapText'),'string','0');
     %--------------------------------
     % Co lai kich thuoc mat dong ho.
     set(wrapDial,'dialRadius',0.55);
     %--------------------------------
     % Lam kim quay tuy bien.
     x = [0 .55 .4 NaN .55 .4];
     y = [0 0 .14 NaN 0 -.14];
     set(wrapDial.linePointerHndl,'xdata',x,'ydata',y);
     set(wrapDial.linePointerHndl,'color','r');
     %--------------------------------
     % Di chuyen ticklabel roi xa mat dong ho.
     set(wrapDial,'tickLabelRadius',0.69);
     %--------------------------------
     % Thay doi font ticklabel.
     set(wrapDial.tickLabelHndls,'fontname','Courier');
     set(wrapDial.tickLabelHndls,'fontWeight','Bold');
     set(wrapDial.tickLabelHndls,'fontSize',16);
     %--------------------------------
     %--------------------------------
     function [] = wrap_cb()
         % wrap_cb.m--Callback for "wrap" dial.
         %--------------------------------------
         wrapDial = dial.find_dial('wrapDial','-1');
         dialVal = round(get(wrapDial,'Value'));
         set(findobj('Tag','wrapText'),'string',sprintf('%d',dialVal));

Best Answer

You have not written an S-function, but just a MATLAB function in a format that Simulink will not understand. Please go through the documentation for MATLAB S-functions and look at some of the demos to understand how to right S-functions.
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