thetorque / pulse_sequencer Goto Github PK

At RIKEN, we were trying to use the DDS system with full 16 channels. We ran into the problem with power distribution of the breakout board. It turns out that, due to the current drawn by each DDS board, the voltage drop on the power line (underneath the PCI connector) is large enough to create trouble.

Yamaguchi-san at RIKEN applied a hot-fix to this by routing manually each power line directly, but the breakout board should be modified to avoid this problem.

I just set up LabRAD and I'm trying to replicate what you have in your paper, but encountered this error while running the Python server pulser_ok.py:

"ImportError: DLL load failed: %1 is not a valid Win32 application."

I'm running Windows 10 64-bit, and I installed FrontPanel 64-bit (4.5.0). I tried installing FrontPanel 32-bit too but that didn't help. I also have pywin32 installed if that matters.

Traceback (most recent call last):
  File "C:/Users/SenkoLab/Documents/GitHub/pulse_sequencer-master/Python_files/servers/pulser/pulser_ok.py", line 28, in <module>
    from api import api
  File "C:\Users\SenkoLab\Documents\GitHub\pulse_sequencer-master\Python_files\servers\pulser\api.py", line 1, in <module>
    import ok
  File "C:\Users\SenkoLab\Documents\GitHub\pulse_sequencer-master\Python_files\servers\pulser\ok.py", line 26, in <module>
    _ok = swig_import_helper()
  File "C:\Users\SenkoLab\Documents\GitHub\pulse_sequencer-master\Python_files\servers\pulser\ok.py", line 22, in swig_import_helper
    _mod = imp.load_module('_ok', fp, pathname, description)
ImportError: DLL load failed: %1 is not a valid Win32 application.

Process finished with exit code 1

Thanks!

This might be related to power distribution and grounding, but it appears that connecting the return paths (V-) of the power-supplies together are crucial. I wonder if it make sense to do this right at the breakout board (currently it's not).