[En-Nut-Discussion] Using the ATmega128 EEPROM for storing user data.

[Ole Reinhardt]

Hi,

> I can find any reference to accessing the EEPROM in the API.

Have a look to the avr-libc user manual (if you'r using avr-gcc). 

http://www.nongnu.org/avr-libc/user-manual/
http://www.nongnu.org/avr-libc/user-manual/group__avr__eeprom.html

You can write singe bytes or whole blocks.

> What is the recommend way of reading and writing the ATmega128 EEPROM?

Using the routines drscribed in the manual. For ICC I'm sorry, I don't
know.

> What addresses are available for user programs to use, that does not 
> interfere with the NutOS?

You should be save to start at 0x0200. But AFAIK also the range below is
mostly unused.

Regards,

Ole Reinhardt

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