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Matlab command language supports DDE and therefore can be
used with the Wedge in the DDE Server mode.
Example #1 Launching the WinWedge from MATLAB
1. Select "DDE Server" from
WinWedge "Mode" menu. When the dialog box appears
asking for a DDE Command Destination Application, enter: "MATLAB" as
the Application Name and then enter: "Engine" as
the DDE topic.
2. Set up the rest of the WinWedge parameters and
then save and quit.
1. Create or edit a .m
file and enter the following code in the file:
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cd ('c:\Program Files\WinWedge');
dos ('winwedge.exe myconfig.SW3 &');
cd ('d:\matlab\bin');
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This
code launches the wedge with the specified config file
and then returns to the original working directory in MATLAB.
Save this .m file as invoke.m and launch from the MATLAB >> prompt.
Create
or edit a .m file and enter the following code in the file:
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while
chan == 0
chan = ddeinit('winwedge', 'com1');
end
mydata
= ddereq(chan, 'field(1)');
rc = ddeterm (chan);
disp(mydata); |
This
function establishes a DDE channel between the Wedge
and MATLAB. Then it retrieves the content of field(1)
in the wedge and perform the disp(mydata) operation
that displays the data that was retrieved from the
wedge in MATLAB's command window. The disp(mydata)
is just a small example of what can be done with the
data once it is brought into the MATLAB. The disp(mydata)
could also be swapped for a call to another .m file
to run even more MATLAB code.
Create
a .m file called dismiss.m with the following code:
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chan
= ddeinit('winwedge', 'com1');
ddeexec(chan, '[APPEXIT]'); |
These
two lines initiate a link with the wedge and then
close the WinWedge application. This code assumes
the WinWedge is already activated in the background. |
