The use of CompactRIO and NI modules; handling analog input with nifpga.

[kovacskalirobert]

[CompactRIO, nifpga API, FPGA]

Hello, I'm Robi. I would like to ask for help with a project. First, let me list the technologies I am working with.

The exact python version used: 3.10+
The exact versions of packages used:

• nifpga API: 22.0.0
• LabVIEW: 2017
• NI CompactRIO (driver): 17.0
• LabVIEW RT: 17.0
• Numpy, Pandas, matplotlib, etc...
• cRIO-9076
• NI-9215
• NI-9263
• Windows 10

I would like to use the aforementioned modules from Python, but I am unable to do so because any data I read always returns 0.0, and I am also unable to write to the module outputs. Here's the setup: I write a program in LabVIEW to program the FPGA to measure an analog signal on the AI0 channel. I compile this program and create a bitfile, which I then use in Python. Everything works great in LabVIEW, but I cannot use the module output in Python because it always reads 0.0. What am I doing wrong? My code is good because if I use a constant instead of the module (AI0), then Python can handle it. So my question is, can the modules not be used from Python?