Re: [Simulavr-devel] Adding ATmega1281

[Joerg Wunsch]

As Petr Hluzín wrote:

> What are the more recent AVRs?

I don't know which one has been historically the first one, but the
ATmega256{0,1} might be the prototypes.  Initially, they were known as
just ATmega256, the distinction between the 64-pin and 100-pin
versions came later.  For simulation purposes, you don't have to care
for that at all, as it's basically just different pinouts of the same
chip.  (I.e., the 64-pin versions have some peripherals which are
present, but don't have their pins wired to the outside.)

> Is there a list/table where people can see which devices have new
> peripherals?

Probably not.

> Is there a comparison of the new and old timers?

Just compare timer 1 of the ATmega1281, and timer 1 of the ATmega128.

You'll find the very same differences again, when comparing timer 1 of
the ATmega8 against timer 1 of the ATmega88.

> I am interested in knowing more. Is there a overview of AVR history?

Alas, I don't think there is.  It's just I eventually became part of
that history myself now. ;-)

> We implement the WDT, but I think only the limited version.

Yes, I think it's the old version.

Dobrou noc. ;-)
-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)