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Altera_Forum
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14 years ago

USBblaster does not show up in Quartus

Hi All, I've got Quartus II V11.0sp1 installed on my Windows 7 64bit system. I've installed the USBblaster and device manager reports it as being OK, but Quartus refuses to recognize it in the ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Thanks, I've already tried that (I even unistalled the root hub to force Windows to re-install), same problem.

The JTAG service isn't running. If I try to restart with services.msc the service starts then immediately stops. Funny thing is this has worked before (V11.0) , I think it stopped working when I installed 11.0sp1. I'm wondering whether I need to re-install as Administrator (I have admin privileges, but do I need to actually run the install programs as Administrator?)

News just in: I had previously tried re-installing Quartus and all the drivers before without success. This time I re-installed by running the install programs as Administrator, and it seems to have worked. As belt and braces I've also set the JTAG service as 'delayed automatic' just in case there are timing or dependency issues with the install of the service. Touch wood things seem to be stable now (famous last words!!).