Dear All,
I am relatively new to Labview and especially to this forum.
Apparently I do not fully understand the TClk feature, but I need
to use it. My question is about synchronizing with TClk, acquiring data
and hardware error comparision.
My test-setup consists of a PXI chassis, 1042Q, which houses
two 6551 HSDIO data generators.
I want to write something to a scan chain in my device (some PCB
with a few circuits). At some later point in time, I want to read the
content of the scan chain. As this is a scan chain, reading is performed
by writing some more data to the device (I push data in at the front, the
data in the scan chain toggles out at the back).
Altogether I have 32 channels, 24 for driving data and 8 channels for reading
and comparing. The amount of data is more than 1000 samples (in the attached
example I used 512 samples).
My problem is: I want to write the data, wait some time, and then write some more
data for reading and comparing (see above). If I initiate a read operation every
time I write, it is working - but I am not sure which data is compared during
the final hardware error comparision (this is the disabled part in the disable structure in
the attached file).
However, if I skip the first read operation, I receive the error message -1074118579 (also attached).
Could someone help me ? What am I doing wrong ?
Thanks a lot in advance !
Best regards,
Karsten_E
