Re: [avr-chat] "Proper" programmer for Linux ?

[David Kelly]

Sent this earlier via another route which for some reason nongnu.org  
silently drops. Has for years. Still does it. The other means has no  
problems delivering email anywhere else.

On Mon, Jul 02, 2007 at 09:18:58PM +0200, Vincent Trouilliez wrote:
> Yeah, I would love JTAG, for the two reasons yuo gave, and also,
> mostly because of the super marvelous in-circuit debugging features
> provided by the AVR ! But unfortunately I don't know of a source level
> GUI debugger that can use this, and that runs on Linux.

I thought gdb had extensions for the original JTAG-ICE? Then there are
several GUI's available that run on top of gdb. When I use gdb its from
the command line. No matter how much coding and compiling I do on
FreeBSD or MacOS, in the past I've always used AVR Studio on Windows to
do the final debug. Painful, but good for encouraging code that works
right the first time.

> > I bought the ATMEL JTAG out of conservatism
>
> Which model exactly (I gather from AVRdude's manual, that there are
> several models from Atmel) ? Do JTAG prgrammers support only JTAG, or
> are they also capable of simple ISP programming ? I really need ISP
> for the project at hand.

The original JTAG ICE (and its clones) could not do ISP. However there
is a JTAG programming mode so for most there is no need for ISP. Is
possible one needs ISP to enable the JTAG feature on the chip but once
JTAG is enabled ISP shouldn't be needed.

> > today I would consider "second-source" providers.
>
> I guess that means "cheaper" ;-) In this case I would love to hear
> about these second sources, price, website...

ECROS ICE-Cube: http://www.ecrostech.com/AtmelAvr/AvrIceCube/index.htm

I have one of these and quit using the $300 (at the time) Atmel JTAGICE
mkII my (former) employer had. USB on the mkII was a touch faster but
the ICE-Cube ran better at 3.3V and drew less power from my target.

--
David Kelly N4HHE, address@hidden
========================================================================
Whom computers would destroy, they must first drive mad.