Re: [avr-chat] AVR Dragon

[Joerg Wunsch]

"larry barello" <address@hidden> wrote:

> Yes, I used it to develop a mega88 application.  Works great.

Well, you have to be aware of a number of pitfalls which lie in the
nature of debugWire.  There are occasional threads on avrfreaks.net
about that.

Fortunately, with the AVR Dragon you've got a HV-capable programming
platform as well, so you could at least reanimate any dead AVR. ;-)

> It doesn't support JTAG on devices > 32k -

It doesn't support JTAG *debugging* on those devices.  JTAG
programming *is* supported for all AVRs.  I don't know about AVR
Studio (perhaps there's still some odd section in the XML file that
might be missing for that), but I've successfully programmed an
ATmega2561 using AVRDUDE.

> which is weird since there are no local memory limitations (unless
> JTAG v2 operates differently than the earlier one).  Maybe they will
> remove that restriction soon.

Unlikely to happen.  This restriction is a purely `political' one: the
Dragon is not supposed to become competition for the `real' JTAG ICEs.

-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

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