What type of liquid crystal display controller/Driver are you using?

You might have to issue commands to the LCD Controller a little bit slower or at power on, wait up to 15ms after Vcc is 4.5V before talking to the LCD Controller.

Also check you signals under a load with an oscilloscope, you may need pull up resistors...

-----Original Message-----
From: Ryan Haley [mailto:ryanhaley@ASPCORP.COM]
Sent: Friday, September 27, 2002 7:03 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]:LCD startup


I am building a circuit that uses a PIC 16f84 to control and LCD screen.
Everything is well and good except upon startup, the LCD sometimes displays
only part of the default screen.  If I reset the power several times,
eventually I'll get the correct startup screen.  Any ideas on what I can do
to fix this would be appreciated.  Thanks.

Ryan Haley

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body