[En-Nut-Discussion] Ethernut 5.0 Schematic Preview

[duane ellis]

Harald Kipp wrote:
> Alain M. wrote:
>   
>> duane ellis escreveu:
>>     
>>> Harald > [nut5 schematic for review]
>>>
>>> duane> 5)   Why is JTAG a non-standard connector? (not 20pin?)
>>>
>>> Yes, but ARM is ARM, and AVR is AVR..
>>>       
>> FWIM, I vote for standard connector too. Maybe when the first ethernut 
>> came around it made sense, but now ARM is the world standard ;)
>>     
>
> Me too, but the available board space is against this bulky connector. :-)
> I considered using the new 38-pin AMP Mictor. 
The Mictor is only used for the ETM macro cell - you don't want to 
bother with that.

I would seriously find a way to make the 20pin arm connector work, maybe 
not 0.1 centers
but - another tighter one? The point being - all pins should be on one 
connector. Not two connectors.

> Is there any problem using an adapter? Similar to
> http://www.ethernut.de/en/hardware/turtelizer/index.html
> (The PDF in chapter "JTAG Adapter")
>
>   
Yea, that could work - however I like the idea of 1 connector.
And besides, this means everybody will need a special cable just for 
this board.
Yuck.

-Duane.