Hi, I was previously working with the USRP X310. I wanted to enable Dual Connectivity mode for enabling two ports with 10 Giga bit connectivity. I ran the update: uhd_image_loader --args "type=x300,addr=192.168.50.2, fpga=XG". Since this, I have not been able to detect my USRP. *My setup: * Ubuntu is 18.04 and the UHD version is UHD_3.14.1.0-0-gbfb9c1c7 I have connected to the laptop via thunderbolt port which is equivalent to USB-3.0. Firewall is disabled. It is not behind a router/switch. Host interface IP address is 192.168.10.3 and subnet is 255.255.255.0 I have tried the following: 1) Ran as root user - uhd_find_devices, uhd_usrp_probe and uhd_images_downloader. Device is not found in first two options. And, the fpga_default images seem to be up to date. 2) By default, USRPs have addresses from the 192.168.10.XXX range (XXX=2 in factory settings). I searched addresses in this range, but still USRP not detected. Ping to the address also fails. Any suggestions would be appreciated to detect the device! Many thanks in advance. Regards, Saimanoj

When you plug in either link, do you see the LEDs on the SFP ports illuminate? You may have bricked the X310 if these ports are unresponsive. Here's a *discovery* guide that might be helpful: https://kb.ettus.com/Troubleshooting_X300/X310_Device_Discovery_Issues Here's a *recovery* guide if that fails: https://kb.ettus.com/X300/X310_Device_Recovery Best, Sam Reiter SDR Support Engineer Ettus Research On Fri, Jul 19, 2019 at 6:03 AM Saimanoj Katta via USRP-users < usrp-users@lists.ettus.com> wrote: > Hi, > > I was previously working with the USRP X310. I wanted to enable Dual > Connectivity mode for enabling two ports with 10 Giga bit connectivity. I > ran the update: uhd_image_loader --args "type=x300,addr=192.168.50.2, > fpga=XG". Since this, I have not been able to detect my USRP. > > *My setup: * Ubuntu is 18.04 and the UHD version is > UHD_3.14.1.0-0-gbfb9c1c7 > I have connected to the laptop via thunderbolt port which is equivalent to > USB-3.0. Firewall is disabled. It is not behind a router/switch. Host > interface IP address is 192.168.10.3 and subnet is 255.255.255.0 > > I have tried the following: > > 1) Ran as root user - uhd_find_devices, uhd_usrp_probe and > uhd_images_downloader. > Device is not found in first two options. And, the fpga_default images > seem to be up to date. > 2) By default, USRPs have addresses from the 192.168.10.XXX range (XXX=2 > in factory settings). I searched addresses in this range, but still USRP > not detected. Ping to the address also fails. > > Any suggestions would be appreciated to detect the device! Many thanks in > advance. > > Regards, > Saimanoj > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >

Hi Sam, Thank you for the information. Yes, you were right. I didn't see the LEDs on the SFP port illuminating. I followed your instructions and the USRP worked like a charm for all these days. However, I didn't have any issues until yesterday. Yesterday, it suddenly stopped working. I could see the Red LED lights from the side and from my earlier observation(as LEDs were not illuminating in SFP port), I concluded it to be in the earlier state. I tried reprogramming the same way and it doesn't work now. Any further points on how to bring back the device to the normal state? I am still hopeful of it getting fixed. Looking forward to your reply. Thank you for your time and consideration. Regards, Saimanoj On Tue, Jul 23, 2019 at 11:59 PM Sam Reiter <sam.reiter@ettus.com> wrote: > When you plug in either link, do you see the LEDs on the SFP ports > illuminate? You may have bricked the X310 if these ports are unresponsive. > > Here's a *discovery* guide that might be helpful: > https://kb.ettus.com/Troubleshooting_X300/X310_Device_Discovery_Issues > > Here's a *recovery* guide if that fails: > https://kb.ettus.com/X300/X310_Device_Recovery > > Best, > > Sam Reiter > SDR Support Engineer > Ettus Research > > > On Fri, Jul 19, 2019 at 6:03 AM Saimanoj Katta via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> Hi, >> >> I was previously working with the USRP X310. I wanted to enable Dual >> Connectivity mode for enabling two ports with 10 Giga bit connectivity. I >> ran the update: uhd_image_loader --args "type=x300,addr=192.168.50.2, >> fpga=XG". Since this, I have not been able to detect my USRP. >> >> *My setup: * Ubuntu is 18.04 and the UHD version is >> UHD_3.14.1.0-0-gbfb9c1c7 >> I have connected to the laptop via thunderbolt port which is equivalent >> to USB-3.0. Firewall is disabled. It is not behind a router/switch. Host >> interface IP address is 192.168.10.3 and subnet is 255.255.255.0 >> >> I have tried the following: >> >> 1) Ran as root user - uhd_find_devices, uhd_usrp_probe and >> uhd_images_downloader. >> Device is not found in first two options. And, the fpga_default images >> seem to be up to date. >> 2) By default, USRPs have addresses from the 192.168.10.XXX range (XXX=2 >> in factory settings). I searched addresses in this range, but still USRP >> not detected. Ping to the address also fails. >> >> Any suggestions would be appreciated to detect the device! Many thanks in >> advance. >> >> Regards, >> Saimanoj >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >

Saimanoj, Depending on which red lights you're talking about, that's not necessarily indicative of an issue. Can you tell me a bit more about what was going on when you had the issue? Were you trying to write an FPGA image to the device, or did it just die out of nowhere? Additionally, I'd like to know if you experience any issues during the jtag process. Screenshots are always helpful. Sam Reiter SDR Support Engineer Ettus Research On Tue, Sep 3, 2019 at 2:52 AM Saimanoj Katta <saimanoj.katta@cumucore.com> wrote: > Hi Sam, > > Thank you for the information. Yes, you were right. I didn't see the LEDs > on the SFP port illuminating. I followed your instructions and the USRP > worked like a charm for all these days. > > However, I didn't have any issues until yesterday. Yesterday, it suddenly > stopped working. I could see the Red LED lights from the side and from my > earlier observation(as LEDs were not illuminating in SFP port), I concluded > it to be in the earlier state. I tried reprogramming the same way and it > doesn't work now. Any further points on how to bring back the device to the > normal state? I am still hopeful of it getting fixed. > > Looking forward to your reply. Thank you for your time and consideration. > > Regards, > Saimanoj > > On Tue, Jul 23, 2019 at 11:59 PM Sam Reiter <sam.reiter@ettus.com> wrote: > >> When you plug in either link, do you see the LEDs on the SFP ports >> illuminate? You may have bricked the X310 if these ports are unresponsive. >> >> Here's a *discovery* guide that might be helpful: >> https://kb.ettus.com/Troubleshooting_X300/X310_Device_Discovery_Issues >> >> Here's a *recovery* guide if that fails: >> https://kb.ettus.com/X300/X310_Device_Recovery >> >> Best, >> >> Sam Reiter >> SDR Support Engineer >> Ettus Research >> >> >> On Fri, Jul 19, 2019 at 6:03 AM Saimanoj Katta via USRP-users < >> usrp-users@lists.ettus.com> wrote: >> >>> Hi, >>> >>> I was previously working with the USRP X310. I wanted to enable Dual >>> Connectivity mode for enabling two ports with 10 Giga bit connectivity. I >>> ran the update: uhd_image_loader --args "type=x300,addr=192.168.50.2, >>> fpga=XG". Since this, I have not been able to detect my USRP. >>> >>> *My setup: * Ubuntu is 18.04 and the UHD version is >>> UHD_3.14.1.0-0-gbfb9c1c7 >>> I have connected to the laptop via thunderbolt port which is equivalent >>> to USB-3.0. Firewall is disabled. It is not behind a router/switch. Host >>> interface IP address is 192.168.10.3 and subnet is 255.255.255.0 >>> >>> I have tried the following: >>> >>> 1) Ran as root user - uhd_find_devices, uhd_usrp_probe and >>> uhd_images_downloader. >>> Device is not found in first two options. And, the fpga_default images >>> seem to be up to date. >>> 2) By default, USRPs have addresses from the 192.168.10.XXX range (XXX=2 >>> in factory settings). I searched addresses in this range, but still USRP >>> not detected. Ping to the address also fails. >>> >>> Any suggestions would be appreciated to detect the device! Many thanks >>> in advance. >>> >>> Regards, >>> Saimanoj >>> >>> _______________________________________________ >>> USRP-users mailing list >>> USRP-users@lists.ettus.com >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>> >>

Hi Sam, Thanks for your kind words. Firstly, it had detection problems. Even, after writing FPGA image nothing happened. There were no indications, that it failed. I assumed it is dead, since after successful image writing, nothing happened. I waited for sometime, maybe after I wrote email, I tried one more time. It successfully loaded the image and usrp was back to life. But, I am still wondering, if this has impacted USRP(Which is presumably problematic). I am trying to emulate it via Open source LTE software and I see from logs, that the software sends signal to the radio via physical layer. But, there is no wireless network created. Multiple COTS devices didn't detect it, in spite of all the correct configurations (After the first failure, I am not able to get the network somehow). Summarizing, does device recovery affect the working of device? If multiple times, it's recovered, what impact or implications, it might have? This is a good starting point to analyze, in my opinion. Regards, Saimanoj On Thu, Sep 5, 2019 at 11:03 PM Sam Reiter <sam.reiter@ettus.com> wrote: > Saimanoj, > > Depending on which red lights you're talking about, that's not necessarily > indicative of an issue. > > Can you tell me a bit more about what was going on when you had the issue? > Were you trying to write an FPGA image to the device, or did it just die > out of nowhere? > > Additionally, I'd like to know if you experience any issues during the > jtag process. Screenshots are always helpful. > > Sam Reiter > SDR Support Engineer > Ettus Research > > > On Tue, Sep 3, 2019 at 2:52 AM Saimanoj Katta <saimanoj.katta@cumucore.com> > wrote: > >> Hi Sam, >> >> Thank you for the information. Yes, you were right. I didn't see the LEDs >> on the SFP port illuminating. I followed your instructions and the USRP >> worked like a charm for all these days. >> >> However, I didn't have any issues until yesterday. Yesterday, it suddenly >> stopped working. I could see the Red LED lights from the side and from my >> earlier observation(as LEDs were not illuminating in SFP port), I concluded >> it to be in the earlier state. I tried reprogramming the same way and it >> doesn't work now. Any further points on how to bring back the device to the >> normal state? I am still hopeful of it getting fixed. >> >> Looking forward to your reply. Thank you for your time and consideration. >> >> Regards, >> Saimanoj >> >> On Tue, Jul 23, 2019 at 11:59 PM Sam Reiter <sam.reiter@ettus.com> wrote: >> >>> When you plug in either link, do you see the LEDs on the SFP ports >>> illuminate? You may have bricked the X310 if these ports are unresponsive. >>> >>> Here's a *discovery* guide that might be helpful: >>> https://kb.ettus.com/Troubleshooting_X300/X310_Device_Discovery_Issues >>> >>> Here's a *recovery* guide if that fails: >>> https://kb.ettus.com/X300/X310_Device_Recovery >>> >>> Best, >>> >>> Sam Reiter >>> SDR Support Engineer >>> Ettus Research >>> >>> >>> On Fri, Jul 19, 2019 at 6:03 AM Saimanoj Katta via USRP-users < >>> usrp-users@lists.ettus.com> wrote: >>> >>>> Hi, >>>> >>>> I was previously working with the USRP X310. I wanted to enable Dual >>>> Connectivity mode for enabling two ports with 10 Giga bit connectivity. I >>>> ran the update: uhd_image_loader --args "type=x300,addr=192.168.50.2, >>>> fpga=XG". Since this, I have not been able to detect my USRP. >>>> >>>> *My setup: * Ubuntu is 18.04 and the UHD version is >>>> UHD_3.14.1.0-0-gbfb9c1c7 >>>> I have connected to the laptop via thunderbolt port which is equivalent >>>> to USB-3.0. Firewall is disabled. It is not behind a router/switch. Host >>>> interface IP address is 192.168.10.3 and subnet is 255.255.255.0 >>>> >>>> I have tried the following: >>>> >>>> 1) Ran as root user - uhd_find_devices, uhd_usrp_probe and >>>> uhd_images_downloader. >>>> Device is not found in first two options. And, the fpga_default images >>>> seem to be up to date. >>>> 2) By default, USRPs have addresses from the 192.168.10.XXX range ( >>>> XXX=2 in factory settings). I searched addresses in this range, but >>>> still USRP not detected. Ping to the address also fails. >>>> >>>> Any suggestions would be appreciated to detect the device! Many thanks >>>> in advance. >>>> >>>> Regards, >>>> Saimanoj >>>> >>>> _______________________________________________ >>>> USRP-users mailing list >>>> USRP-users@lists.ettus.com >>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>>> >>>