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4hv.org :: Forums :: Computer Science
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disatrous programming situation

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Hon1nbo
Tue Mar 30 2010, 02:07AM Print
Hon1nbo Registered Member #902 Joined: Sun Jul 15 2007, 08:17PM
Location: North Texas
Posts: 1040
hello all,
for my Senior Project ROVs, the control panel is interfaced with the computer using my Elexol USB I/O 24 module. I have used this with great success in the past, however it has just been sitting around for a while.
the device works, and I tested it using the device testing program

however, and this is screwing me unless I get some help: Microsoft has significantly upgraded the Visual Basic Programming Language in regards to Serial since I last used the thing, and while I had some success a while back with the new code, I have lost everything including my skeleton code I wrote to make the device work with the newer VB Studio.

The datasheet with older VB code can be found HERE

I really can't figure it out this time. I might be able to given a week, but I have to start construction on the physical unit at this point.

my code simply needs to poll the pins for an at most two inputs at a time (the matrix keypad takes two pins registering as HIGH to trigger a command to the ROV). I have no problem with my code other than this one.

Anyone think they can explain the new way to implement this code? - the elexol website is not up to date with code


-Jimmy
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Bjørn
Tue Mar 30 2010, 02:53AM
Bjørn Registered Member #27 Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
Dim SerialPort1 As New System.IO.Ports.SerialPort
SerialPort1.PortName = "COM1"
SerialPort1.BaudRate = "19200"
SerialPort1.DataBits = 8
SerialPort1.Parity = System.IO.Ports.Parity.None
SerialPort1.StopBits = 1
SerialPort1.Handshake = System.IO.Ports.Handshake.None
SerialPort1.Open()

Then you use SerialPort1.Write or any of the other methods to do what you require.
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Carbon_Rod
Tue Mar 30 2010, 05:08AM
Carbon_Rod Registered Member #65 Joined: Thu Feb 09 2006, 06:43AM
Location:
Posts: 1155
What MS OS, SDK, and DDK versions?

You may wish to try running your program directly outside of the IDE.

You could also try a lib like:
inpout32.dll Link2
Or the io.dll Link2

Cheers,
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Hon1nbo
Sat Apr 03 2010, 10:29PM
Hon1nbo Registered Member #902 Joined: Sun Jul 15 2007, 08:17PM
Location: North Texas
Posts: 1040
took a break from the code for a while to work on the actual sub, but I am still getting errors - I consulted with my project adviser and he agrees that I should wait to sort out the custom controls until after getting the sub and primary programming up and running

I will post back here once I get more code written

-Jimmy
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