On Friday 16 June 2006 13:19, Thomas Schmid wrote: > I was wondering why can the USRP "only" achieve 32 MByte/s, i.e. 256 > Mbit/s whereas the USB 2.0 specifications are 480 MBit/s? The 32 > Mbyte/s is mentioned in several earlier posts on the gnuradio mailing > list archive and in the BBN report (freebsd section).
For starters USB only does 480MBit/sec on the physical layer. It has quite a number of overheads which prevent this throughput being fully realised. I believe the practical throughput IS higher that 256MBit/sec but I don't know for sure (or what the bottleneck is) -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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