Another try - It sounds like you connected the USB connection to the USB to PS port when you should actually be connecting to the JTAG/Console port on the X440. This will make a new serial device show up in /dev/ttyUSB# and you can then communicate with it using screen/minicom/putty. One of these ports will give you access to the Linux filesystem and you can then change the /data/network/ files to set a static IP
ref: https://files.ettus.com/manual/page_usrp_x4xx.html#x4xx_getting_started_serial + I just went through these same steps on my X440 On Fri, Jan 31, 2025 at 1:19 PM Chris Rogers <[email protected]> wrote: > A couple things you can try: > > - Connect your laptop and the X440 to a router and let the router > assign a DHCP address to the X440 and try to uhd_find_devices/ssh into it > that way > - Connect via the QSFP ports and ssh into the X440 via any of the > default SFP addresses ( 192.168.10.2, 11.2, 12.2, 13.2 ). You'll need to > set your computer's SFP interface to be a static IP on the same subnet > > Once you're in, you can check the UHD version by running uhd_find_devices > on the X440 itself, and you can change to a static IP by following this > section of the UHD manual: > > https://files.ettus.com/manual/page_usrp_x4xx.html#x4xx_getting_started_network_connectivity_ifcs > > Hope this helps, > Chris > > On Fri, Jan 31, 2025 at 12:46 PM Daniel White <[email protected]> > wrote: > >> Dear USRP-Users, >> >> I am trying to establish a connection from my laptop (ThinkPad P53) to an >> X440, initially, via 1G ethernet cable, but uhd_find_devices, or >> uhd_usrp_probe fail despite bring able to ping the device. >> >> - *Preamble* >> >> I have a USRP-2954 and have had no problem operating this, via the same >> 1G ethernet cable (with 10GB RJ45 to FSP+ adaptor). I have used Ubuntu >> 22.04 and 24.04.1 with both building from source and directly apt >> installing the binaries, able to find success with uhd_find_devices >> afterwards. >> >> A difference between the USRP-2954 and X440 is that the USRP-2954 uses a >> fixed IP address (192.168.40.2) where are Eth0 on the X440 is configured to >> use a DHCP-assigned IP address. For a while I have experimented with >> network settings on the host laptop, with varying levels of insight gained, >> but never able to get a response recognised from uhd_find_devices with the >> X440. >> >> - *Ubuntu 24.04.1 | apt install libuhd-dev uhd-host* >> >> After installation and verification, and expecting uhd_find_devices to >> work with 1G Ethernet connection, it fails. >> >> I attempted permutating ubuntu network settings to establish a >> connection. Only with the 'shared to other computers' option does ubuntu >> declare a connection has been established. From this, with wireshark I can >> confirm communication from the X440 via its serial number and mac address, >> and find its ip address (10.42.0.159). >> I can ping the device with 'shared to other computers' or with a fixed >> address set on the computer as 10.42.0.1. I cannot however ssh into the >> device, or get a valid response from uhd_find_devices / uhd_usrp_probe with >> known arguments queried. >> >> Connecting the laptop to the 'PS to USB' usb-c port, I expect to see a >> new usb device recognised on the laptop with lsusb, lsblk*, *ls -lash >> /dev/tty*, but never does the number of connections change after powering >> cycling the device while connected in this way. This was my hope through >> after finding >> https://forums.ni.com/t5/USRP-Software-Radio/Unable-to-find-usrp-devices-for-USRP-X440-RJ45-ethernet/td-p/4354614 >> >> >> - *Ubuntu 24.04.1 | building 4.7.0.0 from source* >> >> I installed all dependencies in both >> https://files.ettus.com/manual/page_build_guide.html (only without >> libcurses5 and libcurses5-dev) and >> https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio)_on_Linux >> (24.04 >> version). >> >> In the cmake stage, I notice that it failed to find modules gevent, >> mprpc, pyudev and pyroute2. Previously I had included this (aside mprpc) >> with similar outcome. >> >> After completing the build, I can ping the device successfully (ICMP Echo >> ping request and reply) with fixed ip set, but attempting uhd_usrp_probe >> with this yeilds Destination unreachable. >> >> - *Additional notes* >> >> With each attempt I turn firewall off, via ufw and iptables, as I am on a >> closed network. >> >> From the Ettus's X440 Getting Started Guide, "*Note that if you are >> operating the device in Network Mode, the version of UHD running on the >> host computer and the USRP X4x0 must match*". >> With this I need to make sure the UHD versions are matching. However with >> no way found so far to access the X440 to check its UHD version, I have >> tried all versions since 4.5.0.0 not including release candidates. >> I will be doing this with release candidates with Ubuntu 20 in the mean >> time, and will update if I have success with this. >> >> - *Summary* >> >> Cannot connect to X440 via 1G ethernet, aside ping responses with fixed >> ip address. >> Cannot recognise the X440 as a usb device required to access the >> filesystems directly on the device. >> >> To establish a connection from this as a starting point via networking >> configuration, are there any suggestions? >> To restart the setup from a fresh ubuntu installation, is there anything >> I should change that may improve my chances? It is possible I have missed >> some crucial dependencies for the X440 specifically? >> >> I have saved all logs for the build process and can share these. >> >> Scenere thanks for any and all guidance, >> Dan >> _______________________________________________ >> USRP-users mailing list -- [email protected] >> To unsubscribe send an email to [email protected] >> >
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