I just got hold of the Embedded Artists Xpresso baseboard, so thought I'd have a play; a very comprehensive target baseboard.
First experiment is with the little OLED screen. Hunting through the datasheets it became obvious the board doesn't actually connect all wires needed to the mbed (a command/data line is missing), so I added a jump wire:
It connects PIO2_7 of baseboard mbed socket (empty 2nd hole below mbed pin 21) to PIO0_8(p13) of J6 (7th hole down on left side of J6) to provide OLED data/command signal.
With help from the startup sequence EA provide, I put together a quick library for so it works just like the MobileLCD. Here is the code and an example:
And the results:
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