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pxi-6509 input wrong

Hello,

I first set a pulldown on P3.7.
Then I read the input of P3.7 it states "0".
When I then set P2.7 as an output and set it high, I read "1" on P3.7.

Why can this happen, it also happens on another PXI system.

I only goes ok when I put P3.7 straight on ground without a resistor.
(all the steps are done in MAX)
 

BG Bart

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