>----Messaggio originale---- >Da: albtrenta...@tiscali.it >Data: 15/01/2009 22.37 >A: "Discuss GNU Radio List" <discuss-gnuradio@gnu.org> >Ogg: [Discuss-gnuradio] Re: USB2 problems with Fedora/USRP > >> Hello >> >... >> The next step is to try out some example, e.g. usrp_benchmark_usb.py or usrp_wfm_rcv.py. >> Whatever >the test I try, I can see that blinking led is switched of for a couple seconds, then it blinks at lower >> rate, and >another led near to it turns on (don't remember which is D402 and D403). >> >> On console, i get this kind of error: >> > >> usb_control_msg failed: error sending control message: Connection timed out >> usrp: failed to load fpga bitstream
>/opt/gnuradio/share/usrp/rev4/std_2rxhb_2tx.rbf >> Traceback (most recent call last): >> File ". /usrp_benchmark_usb. >py", line 106, in ? >> main ( ) >> File "./usrp_benchmark_usb.py", line 96, in main >> ok=run_test >(rate, verbose) >> File "./usrp_benchmark_usb.py", line 63, in run_test >> usrp_tx=usrp.sink_s(0, tx_interp) > >> File >> "/usr/local/hamradio/gnuradio/lib/python2.5/site-packages/gnuradio/usrp. py", line 230, in __init__ >> >fpga_filename, firmware_filename) >> File "/usr/local/hamradio/gnuradio/lib/python2.5/site-packages/gnuradio/usrp1. >py", line 940, in sink_s >> return _usrp1.sink_s(*args) >> RuntimeError: can't open usrp1 >... >==== Eric Blossom >wrote > >>Confirm that your computer has an EHCI host controller. >... >===== > >Hello > >The PC has the EHCI host controller: > > >[r...@iz0cez usb]# lspci >... >00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI >Controller #2 >(rev 03) > >Now, I've tried again launching the usrp_benchmark_usb.py and then >[r...@iz0cez usb]# cat >/proc/bus/usb/devices >... >T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 7 Spd=480 MxCh= 0 >D: Ver= 2.00 Cls=ff(vend.) >Sub=ff Prot=ff MxPS=64 #Cfgs= 1 >P: Vendor=fffe ProdID=0002 Rev= 1.04 >S: Manufacturer=Free Software Folks >S: >Product=USRP Rev 4 >S: SerialNumber=480f9a8a >C:* #Ifs= 3 Cfg#= 1 Atr=c0 MxPwr= 0mA >I:* If#= 0 Alt= 0 #EPs= 0 Cls=ff >(vend.) Sub=ff Prot=ff Driver=(none) >I:* If#= 1 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) >E: Ad=02(O) >Atr=02(Bulk) MxPS= 512 Ivl=0ms >I:* If#= 2 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) >E: Ad=86(I) Atr=02 >(Bulk) MxPS= 512 Ivl=0ms > >It seems that I was wrong: USB2 driver seems to be working well, at least for >the first >configuration steps, because I am successful in configuring the Cypress FX2. >Then it looks like the problem is actually >in the next step, that is, loading the fpga bitstream /usr/local/hamradio/gnuradio/share/usrp/rev4/std_2rxhb_2tx.rbf > Hello After some more investigation and code inspection, it turns out that I managed to load the FPGA (I guess...) but the weird thing is that I achieved that by changing the source code in in /gnuradio/usrp/host/lib/legacy/usrp_prims.cc now the FPGA load succeeds ... // reset FPGA (and on rev1 both AD9862's, thus killing clock) usrp_set_fpga_reset (udh, 1); // hold fpga in reset if (write_cmd (udh, VRQ_FPGA_LOAD, 0, FL_BEGIN, 0, 0) != 0) goto fail; while ((n = fread (buf, 1, sizeof (buf), fp)) > 0){ if (write_cmd (udh, VRQ_FPGA_LOAD, 0, FL_XFER, buf, n) != n) goto fail; } //IZ0CEZ_DEBUG fprintf (stderr, "iz0cez_debug: added printout, delay?\n"); //<== PRINTOUT?? if (write_cmd (udh, VRQ_FPGA_LOAD, 0, FL_END, 0, 0) != 0) goto fail; fclose (fp); ... I could verify that by using usrper: [r...@iz0cez rev4]# usrper load_firmware std.ihx usrper: found unconfigured usrp; needs firmware. [r...@iz0cez rev4]# usrper load_fpga std_2rxhb_2tx.rbf iz0cez_debug: added printout, delay? [r...@iz0cez rev4]# Why? May this indicate a timing issue in the USB2 connection? How may investigate (and possibly fix or workaround) USB timing problems? Thanks for any help Alberto Attiva Tiscali Voce 8 Mega: telefoni e navighi senza limiti a soli €10 AL MESE FINO AL 30 GIUGNO 2009. Dopo paghi €29,90 al mese. Attiva entro il 22/01/09! http://abbonati.tiscali.it/promo/voce8mega/ _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio