Hi all,
I am stuck and definitely use your help.
I am using NI 9401 on cRIO-9049 to read digital pulses generated by differential encoder. As 9401 is single ended TTL, I have connected only A and B signals (A- and B- are open). I am going to relace this module by NI9411 later. But for now, I have get this working.
I want to read pulses on FPGA using FPGA IO Node. I have connected encoder pin A and B to module's pin DIO5 and DIO6. This is how my chassis look like:
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Image may be NSFW.
Clik here to view.
When I run FPGA vi, I can't read any data from these encoder pins. But if I go to NI MAX and run test panel by changing programming mode to 'Real Time DAQmx' while FPGA VI still running, I can see FPGA VI gets the pulses from encoder.
Can someone please help me to figure out what might be the reason for this behavior?
Thank you in advance.
Ashwini A Pandit
