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
[Discuss-gnuradio] VIA USB-2 combo card card, not working on linux for usrp
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
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
