LCD displays and pics

dbrown · Joined: 24 Jul 2004 Posts: 20

I am working on a project with an LCD. I can connect the LCD to a circuit that utilizes the display in 8 bit mode, and this works. However, when I change it to 4 bit operation it does not work correctly, garbage characters. Is it likely that an LCD display can fail such that it works in 8 bit mode but not in 4 bit mode?

Thanks

Dave Brown

rwyoung · Joined: 12 Nov 2003 Posts: 563 Location: Lawrence, KS USA

I think you should repost this in the "general" forum. Probably get more responses.

It sounds like a small bug in your initialization code to setup the display in 4-bit mode.

When you repost, include the revision number of your compiler, the PIC part number you are using, if your code is short or you can write a reduced size version of your program that exhibits the problem and also list the PIC pins and to which LCD pins they connect.
_________________
Rob Young
The Screw-Up Fairy may just visit you but he has crashed on my couch for the last month!

dbrown · Joined: 24 Jul 2004 Posts: 20

Thanks for the response, I realized I posted my question to the wrong forum but it was too late. I will re-post on the general site.

Thanks

Dave Brown[/quote]