K8055 Input switches

Hi

I hope someone can help me with a problem I am having with the input switches for the K8055. I have just recentlly asembled this and am testing in out. I can connect to my PC no problem I am using windows XP and DLL rev 3_0_2. Everthing is working fine apart from the digital inputs.

On the demo program supplied input 2 is always on and all other inputs are off. I get the same when I used the ReadDigitalChannel()in c++ for the 5 digital channels. Pressing any of the switches has no impact on what I see on my computer.

I have checked on the board itself with my multimeter and they are working, unpressed they all read ~4.5v while pressed they are all ~0.1v. On the diagram on page 18 of the manual I am checking my multimeter across point 1 & 2.

Any help would be apreciated I am hitting a dead end on this one.

Thanks Jimbob

Have you checked IC2 is in right position?

Thanks VEL255

That was the problem. It was a schoolboy error. :blush: