I'm experiencing a problem with mit USB Oscilloscope. If I connect it with the PC it's found and shown in the Device manager under "Pico Technology Instruments" (It's a 3000 Series, 3403D). As soon as I start the PicoScope Software it removes the device from the list and shows "no suitable device found". The trace.xml shows like this:
Trace opened 01.02.2017.Using default culture: German (Germany).Splash shown after 920,7237msBeginCleanupApplication 'PicoScope 6' (version 6.11.12.1692) starting.9F493E00AA639BB6FEE54A030F4734F7User is not GuestNo Administrator PrivilegesRunning UnrestrictedOS Version - Microsoft Windows NT 6.1.7601 Service Pack 1.net Version - 4.0.30319.42000Current Directory - C:\Program Files (x86)\Pico Technology\PicoScope6BeginManufacturer: Dell Inc., Model: OptiPlex 7020Total Physical Memory 8529334272Found device 0CE9_1213CompleteAttempting to load ps3000a.dllModuleInitPass HsFinished loading ps3000a.dllOpening device using DLL ps3000a.dllProcessor Count - 1CPU0 Intel(R) Core(TM) i5-4590 CPU @ 3.30GHzCPU0 Architecture: 9, Address Width: 64Command Line - "C:\Program Files (x86)\Pico Technology\PicoScope6\PicoScope.exe"Settings file version - 11.2.0Preferences file version - 2.0.0Probes file version - 1.0.0Data file binary header version - 1RemovingNo test menu file foundCreatingDone CreateOpening device unsuccessful. Error UnitNotFoundNo of Devices Found: 0Complete
I uninstalled driver and software and reinstalled it, but that doesn't solve the problem. Doesn't matter if software form the CD or newest update from the website. OS is Windows 7, PC a DELL Optiplex 7020. No other USB devices on USB Controller,but mouse and keyboard. Connected with a Intel USB 3.0-Port and the cable out of the box.
Please check that your USB chipset drivers are up to date (these can be obtained from the Dell Support pages).
It might also be a case of insufficient power for the power-up process when the connection to the device is opened. Are you able to try a different USB cable or powered USB hub?
Updating the chipset and USB 3.0 driver from the DELL Homepage fixed it. The following happened (just so you know):
After rebooting after installing, I put in the USB 3.0 cable from PicoScope and it showed up in the device manager like before. After starting PicoScope it disappeared again, but now the symbol and tooltip for "installing new device" showed up and it installed the PicoScope driver again successfully it seems and It was recognized by the Pico-Software and is working.
Btw.: the bug didn't happen always before. After trying a lot and writing the topic I just tried again yesterday (before installing new drivers for chipset and USB) and is suddenly surprisingly worked. After that in the morning today (also before installing new drivers) it didn't work again.