> Isn't a LOW logic signal always some magnitude above zero
> volts? Maybe 200 - 300 mv or so. In some cases higher

That's true, although other lines are not noticeably above 0V

> However, if they wind up in the undefined areabetween these
> levels, that may be where your problem lies.  And that is that
> the levels are being interpreted incorrectly, therefore, it doesn't
> work

The line which doesn't go as low as a 'normal' 44780-based LCD
is Busy, which is driven by the LCD, so there's nothing I can do
about that. However, it is low enough to be recognised as a 0 by
the PIC

> If this is the case, maybe you have a bad ground somewhere

Don't think so. There's only the PIC and the LCD

> Or maybe you just happened to get a bad display

Hope not. At the stage where I think I need to throw in the towel
and e-mail EA. I'm sure the information is there somewhere, it's
just not being presented well enough. The ST7036 controller has
a lot more going on than the 44780 (which EA bravely say is
obsolete)

Joe
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