How to connect between two GUI via serial visual port ?

Question

dao 2014-11-18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/163164-how-to-connect-between-two-gui-via-serial-visual-port

编辑： dao 2014-11-19

I want send data between two GUI and I use Virtual serial port software to creat two serial port. I can send data to terminal software But it didn't appear in GUI 2 as I want ?

In GUI1, I set:

if true
  a={'a' '123' '456' '789' ...'999' };
  s=serial('COM1')
  s.ReadAsyncMode = 'continuous';
  s.Terminator = 'Lf';     % or 'LF' or 'CR'
  s.BytesAvailableFcnMode = 'terminator';.
  s.BytesAvailableFcn = @BytesAvailable_Callback;
  s.OutputEmptyFcn    = @OutputEmpty_Callback;
  s.BreakInterruptFcn = @BreakInterrupt_Callback;
  s.ErrorFcn          = @Error_Callback;
  s.PinStatusFcn      = @PinStatus_Callback;
  s.BreakInterruptFcn = @BreakInterrupt_Callback;
  fopen(s) ;
  set(s, 'FlowControl', 'software');
  get(s) ;
  for i=1:length(a)
     fprintf(s,'%c',a{i})
  end
  end

In GUI2, I set:

if true
  function connect_com_Callback(hObject, eventdata, handles)
global s  ;
s = serial(get_string_callback(handles.select_com),'BaudRate',9600);
s.BytesAvailableFcnCount = 1;
set(s,'Timeout',60);
s.Terminator = 'LF';
s.BytesAvailableFcnMode = 'byte';
s.InputBufferSize = 1400000;
s.OutputBufferSize = 1400000 ;
% Declare some callback functions or interrupt functions
s.BytesAvailableFcn = @BytesAvailable_Callback;
fopen(s) ;
% set(s, 'FlowControl', 'software');
get(s) ;
set(handles.edit_status,'String','Connected') ;% connected to com
handles.com = s;
guidata(hObject, handles);
function BytesAvailable_Callback(obj,event)
global s myData;
myData = fgets(s)