AVR-Chat

OK, here  is the code that si reading the EEPROM: (sans comments):

RETRY:
   
    sbic     EECR,        EEPE
    rjmp    RETRY

    out      EEARL,      POINTER
    in        BUFFER,    EEDR


tom

At 09:19 AM 4/10/2007, you wrote:
>OK, here  is the code that si reading the EEPROM: (sans comments):
>
>RETRY:
>
>     sbic     EECR,        EEPE
>     rjmp    RETRY
>
>     out      EEARL,      POINTER
>     in        BUFFER,    EEDR

hmmmmmmmmmmmmmmmmmmmm that looks NOTHING like what the data sheet shows,
even with comments.

Regards

John Samperi

********************************************************
Ampertronics Pty. Ltd.
11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA
Tel. (02) 9674-6495       Fax (02) 9674-8745
Email: john@ampertronics.com.au
Website  http://www.ampertronics.com.au
*Electronic Design * Custom Products * Contract Assembly
********************************************************

Thomas Keller wrote:

> OK, here  is the code that si reading the EEPROM: (sans comments):
> 
> RETRY:
>    
>     sbic     EECR,        EEPE
>     rjmp    RETRY
> 
>     out      EEARL,      POINTER
                                      <----- need to set the EERE bit here fort the next "in BUFFER, EEDR" to do anything

>     in        BUFFER,    EEDR
> 
> 
> tom
>

On 3 Oct 2007 at 18:19, Thomas Keller wrote:

> OK, here  is the code that si reading the EEPROM: (sans comments):
> 
> RETRY:
>    
>     sbic     EECR,        EEPE
>     rjmp    RETRY
> 
>     out      EEARL,      POINTER
>     in        BUFFER,    EEDR
> 
> 
> tom
> 

	Is your uP the ATMEGA48?  What is the EEARH value?

	Mark Jordan

John Samperi wrote:
>
> At 09:19 AM 4/10/2007, you wrote:
> >OK, here is the code that si reading the EEPROM: (sans comments):
> >
> >RETRY:
> >
> > sbic EECR, EEPE
> > rjmp RETRY
> >
> > out EEARL, POINTER
> > in BUFFER, EEDR
>
> hmmmmmmmmmmmmmmmmmmmm that looks NOTHING like what the data sheet shows,
> even with comments.
>
> Regards
>
> John Samperi
>



















***DANG***   You're right, I see now where I screwed up.  I left out a 
crucial line of code,
sbi   EECR,   EERE
prior to copying the data from the EEDR tot he buffer.  *sheesh*  adding 
that line solved the problem.
Thanks, John!!!!

tom