LCD Control

[boboco]

Hi all,

thanks for the help.

Curious is that the first line functions exactly as it should in every way, only the second line not. If I turn the contrast up to maximal all pixels turn black, though, so at least the line isn't dead.

I've temporarily replaced the Displaytech with another type of unit. (all that work...., sob!) It worked at once so I take it that the Displaytech is bugged in some way. I've ordered a new one and hope that that will work, otherwise I'll have to change the whole construction to use some other. I'll report when I've got the results.

Another short question on LCD control +PBP. If I want to control a 4 liner, which is essentially two complete LCDs in one, I've been doing it by switching both enable lines via resistors from one port and shorting each of the enable lines respectively with another two ports to disable it.

It must be possible to program the PIC so that the selection of two enables is directly possible. (DEFINEs?) I've looked on the board but haven't found anything. Any ideas?

Greetings

Rob

[boboco]

Hi all again,

sorry Luciano, I didn't mention your post. As it would seem, the KS0077 isn't directly compatable to the HD44780. If that is the case, it would be interesting to write code for it as it is similar. If time allows, I'll try it.

Greetings,
Rob