NI 6561 HSDIO

[Kobi_K]

Hi all , 

I have some strange problem with the PXI NI 6561 HSDIO ,

I've connected CH 0 to CH 4 .

Now when using the NI Test panel from the MAX I've sent "1" to CH0 using the static and saw "1" at CH4 so far so good.

My problem or lets say the thing I don't understand is why when I'm doing the same thing but with CH4 ( Setting CH4 to "1" ) I don't see CH0 as "1".

It's suppose to be a bidirectional IO ? Isn't it ? 

[Ryan_M]

It's probably the case that channel 1 is still enabled so you end up double driving the line and have an indeterminate state.  Reset the device and try the 4 --> 1 connection again.  Does that clear it up?  Can you move the connection to 4 --> 2 and see it work?