issues with usb communication to pump box sonya collier qi zhang’s group – uc davis
TRANSCRIPT
![Page 1: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/1.jpg)
Issues with USB communication to pump box
Sonya CollierQi Zhang’s Group – UC Davis
![Page 2: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/2.jpg)
Error Message
![Page 3: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/3.jpg)
Troubleshooting Steps
1. Use shorter cable … Check2. Solder jumper between ground of C2 and ground of
USB interface … Check3. Check that all ribbon cables inside pump box are
secure … Check4. Replace USB board with a new one … Check5. 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?
![Page 4: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/4.jpg)
If the Comm between the PB and Computer via USB will not Work, try this fix…
![Page 5: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/5.jpg)
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.
![Page 6: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/6.jpg)
Discussion
• Try running Pump Control software on a separate computer
• Verify whether the pump control software recognizes the chip in the pump box
![Page 7: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/7.jpg)
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
![Page 8: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/8.jpg)
Run 78141 V2-2 9:23pm TD T=66
![Page 9: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/9.jpg)
Run 78152 V2-1 9:50pm TD T=38
![Page 10: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/10.jpg)
Servo Tab
![Page 11: Issues with USB communication to pump box Sonya Collier Qi Zhang’s Group – UC Davis](https://reader036.vdocuments.site/reader036/viewer/2022062309/5697bfdf1a28abf838cb2b0a/html5/thumbnails/11.jpg)
Discussion
• Try not only turning off computer, but also unplugging it before powering back up.