Wolfson card for Raspberry Pi with P5 connector: Is there any GPIO left usable ?

Hi,

I have a Raspberry Pi B Release 2.0 (the "old" one with a P5 connector on which the initial Wolfson card can be plugged). And I am planning to get one Wolfson sound card.

However, it also used other GPIOs ports. Even with the schematic, it was not obvious for me (still a noob :-)) if it is still possible to use some GPIO from the Raspberry Pi.

If yes, which one (GPIO)? and how (the wolfson card is covering everything including the 26 pins of the main I/O port...)? I would only need one...

Thanks for your help !

Jean

spambake over 10 years ago

You can get access to GPIO14 and GPIO15 by disabling UART and using the J8 RX and TX pins. I did it but I can't remember the steps. You'll need to look at the fourth answer here:
http://www.element14.com/community/thread/33003/l/all-the-raspberry-pi-gpio-pins-are-occupied-by-wolfson-audio-card-need-access-to-gpio?displayFullThread=true

Ragnar posted a couple of links and some info there.
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