Hi Doug,

The 690 has 256 bytes of Data EEPROM 0 - FF

Cheers

Dave


Doug Metzler wrote:
> Page 119 of the datasheet seems to imply that I have 4k of EEPROM space
> available:
>
> ... the EEADR and EEADRH
> registers form a 2-byte word that holds the 12-bit address
> of the EEPROM location being read. These devices
> (PIC16F685/PIC16F689/PIC16F690) have 4K words of
> program EEPROM with an address range from 0h to
> 0FFFh. The program memory allows one-word reads.
> ...
>
> So as a test I set EEADRH to b'00000001' and EEADR to 0x00, thinking that it
> should put the value in location 256, but it put the value in location 0.
> I'm pretty sure I've got the BANKSEL's correct since both EEADR and EEADRH
> are in the same bank.  The code is straight out of the datasheet, but let me
> know if you'd like me to post it.
>
> Is there a trick to using the EEPROM above 255? (and if so, do you have any
> working sample code to do it? :-) )
>
> Thank you for your help,
>
> DougM
>
>
>   
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