USRP X300/X310 Device Recovery

Issue Details

The USRP X300/X310 appears bricked. The SFP LEDs are off when connected to host, and the device does not respond to ping or UHD commands like uhd_find_devices, even after following the article: X300/X310 Getting Started Guides - Ettus Knowledge Base. 

Solution

Recover the USRP X300/X310 by flashing the FPGA image through the JTAG interface. 

1. Download and install Digilent Adept Runtime and Utilities 
   For Ubuntu OS, download 64-bit .deb variants of Adept Runtime for Linux, and Adept Utilities from the link below
   https://cloud.digilent.com/myproducts/Adept?pc=1&tab=2
   
   
2. Install them by running the commands below
   sudo dpkg -i <Path_to_downloads>/igilent.adept.runtime_<your_version>-amd64.deb
   sudo dpkg -i <Path_to_downloads>/digilent.adept.utilities_<your_version>-amd64.deb
   
   
3. Connect you host to the USRP X300/X310 via USB JTAG port
   
   
4. Run the command: djtgcfg enum
   At this point you should be able to see an output similar to this
   
   Found 1 device(s)

   Device: Dps1
       Device Transport Type: 12345678 (USB)
       Product Name:          JTAG-ONB1
       User Name:             Dps1
       Serial Number:         1234567891A2 
   
   

5. Find your path to the UHD (by default it's /usr/local/share/). Run the commands below to load the default FPGA image
   djtgcfg init -d <Device name, (by default Dps1)>
   djtgcfg prog -d Dps1 -i 0 -f <path_to_uhd>/uhd/images/usrp_<x300_or_x310>_fpga_HG.bit>
   If the bit file is not found, download it by running the command below, and try the command above again.
   sudo uhd_images_downloader
   Note: The loaded image will be temporary (it will be lost after a power cycle)
   
6.  To save this image across power cycles, connect your host to the device (for example via SFP0 as described in this article: X300/X310 Getting Started Guides - Ettus Knowledge Base, (at this point, the LEDs above SFP0 should illuminate)), and run the command below.
   uhd_find_devices
   
   
7. Copy your device's Ip address, and run the command below
   uhd_image_loader --args "type=x300,addr=<your_ip>,fpga=HG"
   
   
8. Power-cycle the device.

The device should be recovered at this point.