Re: [avr-chat] Multiple IDs in avrdude conf?

[Rick Mann]

On Jan 23, 2012, at 13:51 , Joerg Wunsch wrote:

> Rick Mann <address@hidden> wrote:
> 
>> If I don't pass 'atmega644a' to GCC, it won't build properly.
> 
> Because the ATmega644A is not the same as an ATmega644, but rather an
> ATmega644P without `P' (picopower).  The '644 without the P has been
> the first family member, with a different hardware configuration than
> its newer siblings.
> 
> For AVRDUDE itself, the short form (m644) has always been an
> *optional* abbreviation only, while the official name is, of course,
> acceptable, in either capitalization (ATmega644, atmega644).

Interestingly, the signature for my ATmega644A parts is 0x1e9609, same as for 
the '644 part. The signature for the '644P is 1E 96 0A. So I was going with the 
'644 definition.

In my avrdude.conf file, the '644 and '644P parts are otherwise identical.

-- 
Rick