> Try reading the offical thick Optrex manual!
> Talk about Chinglish.  You're lucky to figure
> out that you have to wait 1.64ms after a clear!
> I NEVER read the BUSY signal.  I just wait the
> amount of time shown in the timing diagrams.
> Doing that, I don't ever see any flickering,
> even if I rewrite the whole display.  I use
> 4x40s BTW.
>
*grin* yeah, i've read it. It's pretty bad. I could
use a delay loop. But I don't want to. I want to
write as fast as possible, and I want to be able
to detect if the LCD is not responding.