Forum Discussion
Altera_Forum
Honored Contributor
Honored Contributoridentity forcing of multiple usb-blasters
When multiple blasters are installed, how does the driver make the determination of which one is -0 and which is -1, etc? Is it based on the order of initial driver installation? My experience...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- Look at the registry entries for each USB-Blaster on the two computer systems. Does the number at the end of the "Driver" field correspond to the [USB-x] order on each computer? Cheers, Dave --- Quote End --- Not really. The two in question have drivers of {36fc9e60-c465-11cf-8056-444553540000}\0044 and {36fc9e60-c465-11cf-8056-444553540000}\0047 The higher number has the lower USB-x number. They also have unique containerid (http://msdn.microsoft.com/en-us/library/ff546243%28v=vs.85%29.aspx)'s, so if it's that number that the driver is using to determine the order of USB-x blasters, I'm not sure there is an easy way to control the assignments. edit: the container id looks to be the same before and after the driver re-install, which makes sense since it's a hash of fixed values. so it's probably irrelevant to this discussion.
