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C# problem with HD44780 and DLPortIO
http://forum.lcdinfo.com/viewtopic.php?f=9&t=682
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Author:  vasquez [ Sat May 29, 2004 2:49 ]
Post subject:  C# problem with HD44780 and DLPortIO

Hi all,

im afraid in need for some help :-(
since a few days im expermenting with a HD44780 in combination with C# and DLPortIO.

My goal is to write a program which can display text on my display.
I used a program called LCDSmartie but since that is not completely to my satisfaction i got the idea of writing my own program.

because im fairly new to LCD/VFD programming i started by searching the net and one of the biggest dissapointments is that there arent many clear examples of c#source available and im not that "good" with c++

i found some vb.net code started up visual studio.net "rewrote" the code to c# (using the DlPortWritePortUchar function of DLPortIO) and made a little test form with a button on it. I got some output at my display fairly simple but experienced some "weird" behavior though.

one of the problems im having right now is that whenever i try to output a string to my display it appears for a sec and right after that my display darkens to be empty like just before :-(

whats even more strange (at least to me..) is that after the initial display of the desired string i cannot reproduce the same again, when i click the same button again the display wont show anything :-(

does this ring a bell to anyone?

Author:  Relampago [ Sat May 29, 2004 13:00 ]
Post subject: 

stop work !


http://www.codeproject.com/csharp/cspplcds.asp

Author:  vasquez [ Sun May 30, 2004 0:45 ]
Post subject: 

Relampago wrote:


i was aware of the article at code project, only difference is that i want to use DLPortIO instead of inpout32 (or something like that).

what i can do is test if the source of the codeproject solution gives me the same problem

thanks anyway ;-)

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