AVR-Chat

--- In AVR-Chat@yahoogroups.com, Dave VanHorn <dvanhorn@d...> wrote:
> 
> >
> > > also how can i use the spm instruction to write one word
> > > only in the flash mem. using the ATmega8515??
> >
> >         Reading the datasheet, perhaps?
> 
> Specifically the SPM instruction.

A careful reading of the procedure for using the SPM instruction will 
probably reveal that you cannot write just one word.  Rather, you must 
write a page at a time.  However, you can effect the change of a 
single word by reading the data for a page, changing the word and 
writing the page back.

Remember, datasheets are your friend.  Google, too.