Peter :

You were right about incrementing the page adress. Thanks. however, if I
write the letter "W"  to any address location and retrieve it , it comes
back out as the letter "G". I have noticed that any letter saved into the
memory higher than the letter "P" is retrieved from the memory as the letter
that corresponds to one which has a binary representation that is the same
as the 4 least significant bits. For example----W is saved as G and   T is
saved as D

"W"  is binary 0101 0111                   "T"  is binary 0101 0100
"G"   is binary 0100 0111                   "D"  is binary 0100 0100

The Lcd interface works fine. If I simply send a binary code to the Lcd to
say "W" or "T" it works fine. But not when I retrieve the binary saved code
from memory. The program so write to the EEprom seems fine as well.
I'm puzzled ?

----- Original Message -----
From: "Peter Homann" <peter.homann@ADACEL.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Sunday, December 08, 2002 11:56 PM
Subject: Re: [PIC]:


> It's a bit hard with the limited info, but I'll give it ago.
>
>
> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
> a b c d e f g h i j  k  l  m  n  o  p
> q r s t u v w x y z
>
>             ^
>             |
>
>
> Letters a - p are the 1st 16 letters of the alphabet.
>
> w is the 23rd letter. 23 -16 is 7. the 7th letter is G
>
> Goes the 25xx80 have 16 byte pages by any chance? if so your not
> incrementing the page address.
>
>
> Cheers,
>
> Peter Homann
> mailto:Peter.Homann@adacel.com
> Adacel Technologies Limited,
> 250 Bay St, BRIGHTON, 3186, AUSTRALIA
> http://www.adacel.com <http://www.adacel.com>
> Telephone +61 (3) 8530 7777, Facsimile +61 (3) 9596 2960
> Mobile 0421-601 665
>
>
> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of kirby warkentin
> Sent: Monday, 9 December 2002 3:48 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]:
>
>
>  [PIC]:
>  I am using the pic16f876 to save bytes to the microchip 25xx80. Whenever
I
>  try to save and retrieve any letter further down the alphabet than P,
when
> i
>  retrieve it the data is changed. For example, when saving the letter W ,
>  when it is retrieved it seems to be saved as the letter G.  I am using
> MPLAB
>  and printing out the byte to an LCD. I get the same results whether I try
>  saving the letters using binary or hex coding. For some reason the
letters
> A
>  through P work fine.
>  Whats going on ?
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>
>

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics