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[Lcdproc] hd44780 goes 4-bit


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  • From: sexandvodka AT gmail.com (Dmitry E. Mikhailov)
  • Subject: [Lcdproc] hd44780 goes 4-bit
  • Date: Tue Dec 25 17:51:02 2007

On Tuesday 25 December 2007 04:15:00 pm Pierre Ossman wrote:
> Hi again everyone,
>
> Since there seems to be little other activity, I might as well air another
> problem. ;)
>
> My display tends to crap out now and then. After a few days of fiddling,
> I've figured out that it sometimes misinterprets some data transfers as an
> instruction (RS has the wrong level). Combined with a character in the
> range 0x20-0x2F, it turns the display into 4-bit mode and everything goes
> to hell.
>
> Has anyone seen anything like this and do you have any ideas what to do?
> The display uses winamp wiring and I've tried two different parallel cards
> in case there was a problem there.
>
> Rgds

Try real 4bit if possible. Moving from 8 to 4 bit solved my prob's...




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