Design Files/Gerbers of SAKC V2

Carlos Camargo cicamargoba at
Thu Jul 29 09:20:23 EDT 2010


On Thu, Jul 29, 2010 at 6:41 AM, Adam Wang <adam at> wrote:

> Hi,
> I found that you removed J18 header and routed J17's <DC Jack>unused pin to
> connect.
> There's serious power +5V will collide with ground conditions must be
> happended below:
>   a) As long as usb  power cable plug in, it directly shorts to the GND if
> the DC JACK is a type of Normal OPEN. even if using NORMAL CLOSE(once 2.1mm
> plug-in).
>   b) when mini-cable USB doesn't plug in, and DC JACK (if it's a NORMAL
> OPEN)have +5V input works. later one USB power plug in, its usb +5V will be
> forced to connect to GND caused DC JACK pin.
> You might misunderstand the 3rd pin action of J17.

You're right I make a mistake.


>    1, D10's footprint is still small, pls use a 0603.
>    2, The fpga's extendable header's text is "J19" not J20.


I've already uploaded this changes to git repository


Carlos Iván Camargo Bareño
Profesor Asistente
Departamento de Ingeniería Eléctrica y Electrónica
Universidad Nacional de Colombia
cicamargoba at
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