Tibbo Ethernet shield

[dhouston]

I think this layout works but my eyes are having difficulty staying uncrossed.


I'll get 5-10 of both shields on order as soon as I feel confident in the layout. I have the EM500 but will need to order the GA1000 and the flash memory chip.

Note that this includes a flash memory chip as well as the EM500/GA1000.

I've encoded a little info in the shapes of the pads. The slightly askew square ones are for rerouting the three IO lines should it be necessary. The octagonal ones have no connections. The round ones are connections in use or those within the headers.

Tibbo finally delivered on their more than year old promise. Let's hope it was worth the wait.

Once again, I would welcome some more eyeballs checking this out.

[dhouston]

I forgot to give you these...

[dhouston]

It's amazing how things that look great at 3AM (in soft lights) look so different in the harsh light of day.

Once it dawned on me that the two SPI chips could share the same clock, it made the routing of traces much simpler.



And there's less clutter if I just give you an x-ray view showing top & bottom (from above).

[dhouston]

I have offered the Gerbers to Tibbo in exchange for their reviewing the layout. Stay tuned.