Troubleshooting USB Communication Issues with Pump Box at UC Davis
Resolve USB communication problems with the pump box used by Sonya Collier and Qi Zhang's group at UC Davis. Follow the provided troubleshooting steps and suggested fixes to ensure proper connectivity and functionality. Also, address abnormal behavior in the PTOF panel.
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Presentation Transcript
Issues with USB communication to pump box Sonya Collier Qi Zhang s Group UC Davis
Troubleshooting Steps 1. Use shorter cable Check 2. Solder jumper between ground of C2 and ground of USB interface Check 3. Check that all ribbon cables inside pump box are secure Check 4. Replace USB board with a new one Check 5. Verify that computer detects when pump box is plugged into one of computer USB ports It does. 6. Problem still not solved! 7. Next Step?
If the Comm between the PB and Computer via USB will not Work, try this fix
Remove the USB board from the PB, by removing the two screws from the bottom of the box. On the under side of the board, solder a wire to make the connection shown below in pink. This will ground the shielding of the cable, and most likely fix the problem.
Discussion Try running Pump Control software on a separate computer Verify whether the pump control software recognizes the chip in the pump box
Issues with PTOF Panel Strange behavior in PTOF panel despite chopper movement looking normal Sometimes turning computer on and off works, but it comes back, what is the source of the problem? Next two slides show screenshots before and after, notice irregular PTOF airbeam signal in 2nd slide
Discussion Try not only turning off computer, but also unplugging it before powering back up.
