Howto find an free GPIO

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prinzenrolle
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Joined: 22 Jan 2010
Posts: 81

PostPosted: Tue May 15, 2012 7:08    Post subject: Howto find an free GPIO Reply with quote
Hello,
i ve an Router from Buffalo WHR-HP-G300N.
I need an free GPIO (output) to drive an input for an external board with microcontroller.

My problem is i found no unused gpio (pin from the ic).
How can i find an free gpio?

There are two ics from Atheros:
AR7240-AH1A and the AR9283-AL1A

I search for the datasheet, but i found no datasheet for both ics.

Thx a lot for your help!
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