zero reading from NI-9202, LabView FPGA Interface

[Alex2019]

Hello!

I having a strange problem. NI-9202 reads only "0" from whatever channel (1..16).

In the same cRIO chassis (cRIO-9248) I have NI-9264 and the same FPGA code outputs signals I want, but reading is always 0 from 9202. RAW or Calibrated plays not role.

I am running in FPGA programming mode. I am sure that target-to-host data streaming via fpga referenced controls or DMA-FIFOs works fine (if I replace input node Mod1/AI0 with loop index or numerical constant).

Any ideas?

The 9202 module configuration is below:

Some code (I know you will ask for that 😉

[Alex2019 · Accepted solution]

There is a combination of two problems for this issue:

 1) In the code. In FPGA mode the NI-9202 must get Start command as well as sampling and filtering rates (see below a pic)

 2) The NI-9202 is faulty 😯

I have two 9202, one works fine but the other one is faulty, could not be detected. In fact, when I insert this faulty one the other neighboring module (what so ever) will not be detected as well. The module will be sent for repair.

[TheFritzinator]

Also check the Card and Chassis FPGA/RT configuration in NI MAX.