AVR-Chat

----- Original Message ----- 
From: "Graham Davies" <YahooGroups@ecrostech.com>
To: <AVR-Chat@yahoogroups.com>
Sent: Wednesday, October 27, 2004 10:50 PM
Subject: [AVR-Chat] Re: The Butterfly is flying !!


> 
> 
> --- In AVR-Chat@yahoogroups.com, "Ian Drennan" <ianid@s...> wrote:
> 
> > Please can someone explain when and
> > why I will need to use an ICE ...
> 
> When and why are both the same. You will need to use 'an ICE' 
> when/because you want to see the effect of your software on the 
> actual hardware or when the hardware is affecting the operation of 
> your software and you need to see how. In my opinion, this situation 
> is bound to come up sooner or later in any serious embedded systems 
> work. The simulator is great while you're interested only in what's 
> going on inside the microcontroller. When you interact with the real 
> world, it gets harder to use effectively.
> 
> > ... and how an ICE actually works.
> 
> See http://www.ecrostech.com, click on JTAG ICE for Atmel AVR and 
> click on technical details.
> 
> > I intend using Mega8 and Mega16
> > chips which I inderstand are JTAG
> > supported.
> 
> ATmega16, yes. Not the ATmega8, though. It's only a 28/32 pin package.
> 
> Graham.

Graham
Thanks for your reply and explanation,
Will give you a shout when I need one, which I think will be soon.
Have read up on JTAG today so I think I now understand the concept.
Regards
Ian