Recommendations for USB 2.0 add-on PCI Cards

I’m running GNU Radio on a Dell Precision 530MT workstation under
Ubuntu. Unfortunately, the system only has USB 1.0 ports. I installed
an 6-port USB 2.0 add-on PCI card, but I only get a maximum transfer
rate of 16 Mbps when I run “benchmark_usb.py” from
“gnuradio-examples/python/usrp”. I also ran “test_usrp_standard_tx” and
“test_usrp_standard_rx” from “usrp/host/apps”. The transmit part worked
fine, but I got a lot of over-runs on receive. My add-on card is based
on the NEC chipset, which I gather is not capable of achieving a maximum
rate of 32 Mbps with the USRP. Are there other cards and/or chipsets
that achieve 32 Mbps? It’s hard to come across a card that isn’t based
on the NEC chipset. Matt E. mentioned that the Zonet PCMCIA card
based on the VIA chipset works good. Is there one in the PCI
form-factor that works as well? Any suggestions are appreciated. Thank
you.


Need Mail bonding?
Go to the Yahoo! Mail Q&A for great tips from Yahoo! Answers users.
http://answers.yahoo.com/dir/?link=list&sid=396546091

I’m running GNU Radio on a Dell Precision 530MT workstation under Ubuntu. Unfortunately, the system only has USB 1.0 ports. I installed an 6-port USB 2.0 add-on PCI card, but I only get a maximum transfer rate of 16 Mbps when I run “benchmark_usb.py” from “gnuradio-examples/python/usrp”. I also ran “test_usrp_standard_tx” and “test_usrp_standard_rx” from “usrp/host/apps”. The transmit part worked fine, but I got a lot of over-runs on receive. My add-on card is based on the NEC chipset, which I gather is not capable of achieving a maximum rate of 32 Mbps with the USRP. Are there other cards and/or chipsets that achieve 32 Mbps? It’s hard to come across a card that isn’t based on the NEC chipset. Matt E. mentioned that the Zonet PCMCIA card based on the VIA chipset works good. Is there one in the PCI form-factor that works as well? Any suggestions are appreciated. Thank you.

Gee, you asked this like two months ago - I’m really far behind
on the gnuradio list. Nevertheless (for the archives, I guess): After
some research, I found (and ordered) the VIA VT1621L chipset. It works
in linux and can support 2.665e+07 bytes/sec recieving and 2.317e+07
bytes/sec transmitting. You can get an add-on card that uses this
chipset for less than $20.


Caleb P.

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs