lk

Fresh air is probably a good idea.

I have to echo Jinx's question -- how do you know the initialization is=20
working?  If the initialization fails, you can get all sorts of weird=20
behaviors.

Also, I'm a little concerned that you seem to have your delays on the rag=
ged=20
edge.  When starting out with a new LCD I like to talk to it in a very=20
leisurely fashion.  There is no such thing as too slow as far as the LCD =
is=20
concerned, so starting out with some very fat delays can give you a bette=
r=20
chance to see the signals and be sure they are what you expect.

Using delays AND the busy flag is a tad tricky, too.  Examine that code, =
or=20
start by using delays only.  Not as efficient, but a bunch easier to get=20
working.

--McD

----- Original Message -----=20
From: "lk" <stowoda@gmx.net>
To: "'Microcontroller discussion list - Public.'" <piclist@mit.edu>
Sent: Wednesday, August 24, 2005 7:36 AM
Subject: AW: [PIC] 4x27 LCD & P16F84A


> I ve added some of the nop's but nothing changes.
> I think I shoud go out to breathe some fresh air, maybe it will help.
>
> Thx so far!
>
> -----Urspr=FCngliche Nachricht-----
> Von: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] Im Auftra=
g=20
> von
> Jinx
> Gesendet: Mittwoch, 24. August 2005 13:16
> An: Microcontroller discussion list - Public.
> Betreff: Re: [PIC] 4x27 LCD & P16F84A
>
>
>> Aehm, Ive used the counter function in MPLAB (for the delays)
>> After Initialization I see the cursor blinking in the upper left corne=
r
>> of the display..
>
> That's probably good (but you may have got it accidentally or
> even something that looks like what you wanted). You should
> separate those bit commands in lcd_set with NOP. I guess
> your micro speed is 4MHz or less if you're using XT, so one
> NOP should be enough. Read-modify-write can be a real
> problem and cause confusing effects, don't under-estimate it
>
> --=20
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