I'm sorry, but there is absolutely no limitation -- in USB or in Windows -- regarding the number of "threads of execution" (threads being the unit of execution and scheduling on Windows) that can use any given USB bus at one time. If there were, it would be impossible to support more than 2 devices on a USB bus simultaneously.
Did you mean something different than what I understand from the term "threads", perhaps?? That why I was asking. Again, I'm not trying to be argumentative and I'm not trying to revive the "firewire, USB, Ethernet" discussions. I'm trying to see if there's something that I genuinely don't understand. Peter K1PGV From: Dudley Hurry [mailto:[email protected]] Sent: Monday, January 11, 2010 12:09 PM To: Peter G. Viscarola Cc: Alan NV8A; [email protected] Subject: Re: [FlexEdge] [Flexradio] [FlexRadio] Re: Flex 5000 has a 2.4 Khz Spur???? Alan, USB can only handle 2 threads at one time. The FireWire can handle 8 threads, 2 TX threads (I/Q) 4 RX threads (2 I/Q ) and control thread. All isosyncnous . Giga bit would be better, but not all computers had a Gigabit port in them and the gigabit standard was not set over 3 years ago of any kind of radio control, if Gerald had to do it all over again, Giga would be the way.. 73, Dudley WA5QPZ FlexRadio Systems (512) 250-8595 Email: [email protected]<mailto:[email protected]> Web: www.flex-radio.com<http://www.flex-radio.com> "Tune in excitement!" ™ On Mon, Jan 11, 2010 at 10:50 AM, Peter G. Viscarola <[email protected]<mailto:[email protected]>> wrote: > > USB can not handle the number of threads at once. > I really don't want to beat this "why use 1394" horse any deader than we've beat it in the past few years, and I'm not trying to argue. But I can't relate "USB" and "number of threads"... can you say more about this? Note that he's talking about USB 3.0 (Superspeed), which has a speed of 4.8Gbps. Peter K1PGV _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using alpha and beta versions of the software.
