How to program I/O via a GPIO H/W interface

[Jun Du]

I've got a VIA EPIA P700 embedded board running XPe. The board supports a GPIO interface, but it does not provide driver for it. My application needs to access I/O from GPIO ports. Any thoughts?

Best, Jun

[Luc Pattyn]

Hi, I suggest you talk to the vendor or search his web site[^]. :)

Luc Pattyn [Forum Guidelines] [My Articles]

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Fixturized forever. :confused:

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[Jun Du]

Thanks for replying. I've gone through the vendor already. They can only provide a chip-level programming guide, which does not help me much. Anyway, I am thinking since GPIO is a generic interface, someone should have done something on it. Surprisingly, very little information on the web. I just don't want to reinvent the wheel. Happy New Year!

Best, Jun

[jkohler]

In hardware land, GPIO usually means "General Purpose I/O", i.e. "we added some I/O points for cuz we had some extra space and though it'd be cool". In all my years I've never seen a standard way of attacking a GPIO interface - they're all different. G'Luck

Subvert The Dominant Paradigm -- bumper sticker, circa 1971

[gdupasqu]

Hello, I have exactly the same problem than you. I would like to use GPIO of epia p700 board. Did you find a solution ? Thanks, Guillaume