Re: [Discuss-gnuradio] VIA USB-2 combo card
Or does anybody have a suggestion of an USB-2 addon card for a notebook (pccard) that works with the USRP. Jim Perkins recently told me the following: I recently tested an inexpensive Zonet USB 2.0 add-on card. It has the Via VT6212L chipset. The Via based card worked very well. The benchmark_usb.py test returned OK for all speeds including 32 MB/s. Matt I tried using an ALI based Chronos USB 2.0 pc card. It did not work well at all. It could only do USB 1.0 connection to the USRP. It worked with the USRP at first, but after a few days I could not get any attempts at USB2.0 USRP connection to work. I'm not sure if it is the chipset, but perhaps Chronos cards are best avoided. Lance Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] VIA USB-2 combo card card, not working on linux for usrp
I have an Adaptec DuoConnect AUA-1422 combo card with an NEC USB2 chipset. Using Mandriva 2007 spring on a Dell Latitude C840 with Pentium 4 m 2.6 GHz cpu I only get 16 MB/s transfer as determined by benchmark_usb.py. A little dissapointed, specially as I'm experiencing uO's with my latest 4-channel receiver app. eric Eric H. Matlis, Ph.D. Aerospace Mechanical Engineering Dept. 120 Hessert Center for Aerospace Research University of Notre Dame Notre Dame, IN 46556-5684 Phone: (574) 631-6054 Fax: (574) 631-8355 On Thu, 7 Jun 2007, Martin Dvh wrote: Hi all, I am using a combo pccard (USB-2 and firewire) with VIA chipset to get USB-2 on my laptop. But using linux I can't get it to work. I get usrp overruns, (uOuOuO) even with decimation factors of 200 when using usrp_rx_cfile.py This is only 320 ksamples/sec with top I see that the CPU is 80 % idle, so that is not the problem. When running benchmark_usb.py I get slightly better performance, 2 MB/sec works and 4 MB/sec works sometimes, all above fail. I don't know why benchmark_usb works better then usrp_rx_cfile. When I run usrp_wfm_rcv_nogui.py I get garbled sound and uO and aU, but this is logical. The script doesn't get enough data from the USRP. On windows usrp_rx_cfile.py just works fine with the same usb-2 card. (This is a much older gnuradio/usrp release though) Does anybody have a clue, what is wrong here. I tried both kernel 2.6.18 and 2.6.20. I also tried noacpi acpi=off apm=off as kernel-boot param. Or does anybody have a suggestion of an USB-2 addon card for a notebook (pccard) that works with the USRP. Greetings, Martin ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] VIA USB-2 combo card card, not working on linux for usrp
Matt Ettus wrote: Or does anybody have a suggestion of an USB-2 addon card for a notebook (pccard) that works with the USRP. Jim Perkins recently told me the following: I recently tested an inexpensive Zonet USB 2.0 add-on card. It has the Via VT6212L chipset. The Via based card worked very well. The benchmark_usb.py test returned OK for all speeds including 32 MB/s. Matt Strange, my card is also a zonet USB 2.0 add-on card with VIA Vectro VT6212 controller Maybe the problem is that it is both usb-2.0 and firewire. lspci gives: Via Technlologies, Inc VT82 UHCI USB 1.1 1106:3038 subsys 1106:3038 Via Technologies, Inc 2.0 [1106:3104] subsys 1106:3104 Via Technologies, Inc. IEEE 1394 Host Controller 1106:3044 subsys 1106:3044 I found on: http://www.linux-usb.org/usb2.html The cards that do both USB 2.0 and FireWire have for some reason been a problem for many people, even those without built-in PCI bridges. But the site does not give a solution. It could also be I am looking in the wrong direction and the problem is in kernel, libusb or recent SVN usrp driver. greetings, Martin ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] VIA USB-2 combo card card, not working on linux for usrp
Or does anybody have a suggestion of an USB-2 addon card for a notebook (pccard) that works with the USRP. Jim Perkins recently told me the following: I recently tested an inexpensive Zonet USB 2.0 add-on card. It has the Via VT6212L chipset. The Via based card worked very well. The benchmark_usb.py test returned OK for all speeds including 32 MB/s. Matt ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
