[Arm-netbook] EOMA-68 Carrier Board Concept

Scott Sullivan scott at ss.org
Thu Aug 15 15:20:20 BST 2013


On 08/15/2013 05:51 AM, Christopher Thomas wrote:
> So, Ejectable PCMCIA, 4 Port USB Hub IC, with 2 available external
> ports, two ports are being utilized for the ATMEGA32U4, and USB Audio
> IC.

I'd like to catch this now. It has been a major sin of ARM board 
manufactures to only provide USB ports with USB connectors. The Via APC 
boards are particularly bad for this, especial because they have a 
mini-ITX like form factor (called Neo ATX?)[1].

Some USB ports should be brought out on the conventional 0.1" headers 
you see on ATX motherboards (or the USB 3.0 equivalent 20pin connector). 
This is especially important if making it ITX case compatible. Cases 
will have front facing ports, and not including a header means any user 
can not use their case to it's fullest.

This does mean that you'll either have to choose a Hub chip with more 
ports, or include a second hub. Additionally, headers for front panel 
audio, power/reset switches and LEDs should be considered as well.

[1]:http://apc.io/

-- 
Scott Sullivan



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