Yes, it's really not obvious where the mbed fits on the base board; the DIL headers have extra pins as the LPCXpresso board is bigger. Nonetheless, page 2 of the baseboard schematic diagram shows the connector in detail - Pin 1 of the header (as labelled on the PCB, next to the anti-ESD pictogram) is Pin 1 of the mbed (marked as GND on the mbed PCB, to the left of the USB socket).
Put simply, if the text on the baseboard is the right way up, the USB socket on the mbed should be at the very top of the header, above the little "notch" in the printed rectangle within the header area.
Hi, mbedders.
Now, before you laugh, I'm kinda lost on the I2C topic.
So I bought the Base Board from EA, and wanted to try the PCA9532 LED dimmer expander thingy.
And i thought, that if i used the PCF8574 files, with some editions, it could do the trick. But, somehow this little bastard, keeps giving me errors. Can anyone point out for me, what I am doing wrong?
I really can't see where my error should be:
http://mbed.org/users/Lerche/programs/5zebp
and here's the datasheet for the IC:
http://www.nxp.com/documents/data_sheet/PCA9532.pdf
/ Lerche