AVR-Chat

I haven't used DW now for a few months but my memory is that you can't 
program with DW and can't have both ISP and DW enabled at the same time, 
so the program/debug cycle isn't exactly seamless. Whereas the Jtag 
program/debug cycle is seriously quick and completely seamless. I find 
this difference means I make much more rapid progress with Jtag. 
However, my DW experience was based on M168 in a target board - I'd be 
pleased to discover it's not always such a pain. I agree about the 4 
pins but that's part of my thinking in moving to the M32 for development 
- the cost of the 4 pins is more than offset by saved development time.

Mark


John Samperi wrote:
> At 09:19 PM 25/01/2007, you wrote:
>   
>>  Jtag development
>> is superb, and DebugWire is not.
>>     
>
> What exactly is not so superb with DW? :) I use JTAG, DW and
> (now rarely) the old ICE200 and can't tell the difference as far
> as debugging is concerned. Sure DW is still newer that JTAG and
> may have a few things to iron out but I have been using the Dragon
> in DW mode for the M88 and Tiny2313 in several projects for the past
> 6 months and I find it SUPERB :).
> I hope they put it into the M8515, the M8535 and  anything else that
> it can be put into. I find the loss of 4 I/O lines annoying with JTAG.
>
>
>