Forum Discussion
Oliver_I_Sedlacek
Contributor
ContributorWindows sees USB blaster but Quartus doesn't, why?
After using my USB blaster successfully with SignalTap to configure and debug my Cyclone4 part, SignalTap and the programming software aren't reliably seeing the USB blaster (by which I mean only 5% ...
FvM
Super Contributor
Super ContributorIn addition, I also presume that your target environment doesn't involve strong common mode noise (e.g. a power electronics controller) that might affect USB and JTAG interface operation. In this case a different PC or different PC power supply can matter a lot.
