I am using the PXI-NI6554 to generate a digital signal, as
clock I want to use an external source that I drive in the board via de CLK IN SMB
connector. Always I got the same error (cod: 1074115898) from the “Write” VI
block, the reason is that there is not clock signal or is not detected.
I tried the example “Dynamic Generation with External Sample
CLK” and I have the same error.
The clock signal is in 3,3V logic. The same clock signal
works to acquire via the STROBE pin. I have scoped the CLK and the shape is
quite ok. I have tried the two possible impedances for the CLK input also.
I found one respond (http://digital.ni.com/public.nsf/allkb/884C5A76BA1A474E8625717A0068AA09)
about strange behavior of CLK IN but the proposed solution does not help in my
situation.
Does somebody have an idea about the problem?
Thanks,
Abe
