Did it ever work?  That is, have you gotten it to send any characters to
the LCD?
        When/where in the program are you setting the port states?  Are you doing
this only once in your program?
        Is the program expecting anything from the LCD?  When you send something to
the LCD are you waiting for a "ready" response from the LCD or just timing
it?  Unplug the LCD and see if the PIC reacts the same way.
        Do you have a replacement LCD you could try to see what happens?


        Hopes this helps
        Sergio




----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Tim Thompson
Sent: Monday, May 07, 2001 4:55 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: [PIC]: HELP! Need someone to look at code..


OK im past frustration and on the verge of writing this crap over from
scratch. Im working on a program that controlls a LCD and communicates to a
PC via rs232. The PIC as a 16F877. The problem I'm having is when telling
the pic things to send the LCD, it locks up and stops responding to
anything. It seems somewhat random when exactly it locks up. On lockup the
USART TX line tri-states(?) (neather high nor low)...and I lack any
debugging tools so I cant see wtf is going on. I'm allmost positive its a
software thing because I use the PICLOADER bootloader, and it uses the
rs232 i-face for writing the program, and it works just fine. If anyone
would be willing to look over my program please let me know..Its kinda
large, but alot of it is commented out in my attempt at finding the
problem. Assembled it uses a little over 1K of program space. Please anyone
who is willing to help out a newbie please speak out.

MUCH thank-you in advance,
Tim Thompson

-
Remember, 'kill' doesn't kill processes, users kill processes.

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