![]() Continue to hold-down the button until the front-panel LEDs blink and remain solid. To boot into the safe image, hold-down the safe-mode button while power-cycling the device. The safe-mode button is a pushbutton switch (S2) located inside the enclosure. Once booted into the safe image, the user can once again load images onto the device. Fortunately, the USRP-N Series can be booted into a safe (read-only) image. Its possible to put the device into an unusable state by loading bad images. Use this number to select the correct FPGA image for your device. Determine the revision number from the sticker on the rear of the chassis. Note: Different hardware revisions require different FPGA images. The USRP will drop off the network for a brief moment and reboot. If you immediately want to apply this image, add the reset argument: uhd_image_loader -args="type=usrp2,addr=,reset" Use custom-built images: uhd_image_loader -args="type=usrp2,addr=" -fw-path="" -fpga-path="" Use default images: uhd_image_loader -args="type=usrp2,addr=" This ensures that when the device reboots, it has a compatible set of images to boot into. When updating images, always burn both the FPGA and firmware images before power cycling. The USRP-N Series can be reprogrammed over the network to update or change the firmware and FPGA images. Load the Images onto the On-board Flash (USRP-N Series only) Use the card burner tool (Windows) /lib/uhd/utils/usrp2_card_burner_gui.py The list option has been implemented on Linux, Mac OS X, and Windows. The list result will filter out disk partitions and devices too large to be the sd card. Use the -list option to get a list of possible raw devices. usrp2_card_burner.py -dev=/dev/sd -fpga= Use the card burner tool (UNIX) sudo /lib/uhd/utils/usrp2_card_burner_gui.py Cards can have unexpected timing characteristics.įor these reasons, we recommend that you use the SD card that was supplied with the USRP2.Cards can be SDHC, which is not a supported interface.However, certain types of SD cards will not interface with the CPLD: Warning! It is possible to use 3rd party SD cards with the USRP2. Make sure that -dev= specifies the SD card. If you specify the wrong device node, you could overwrite your hard drive. Warning! Use usrp2_card_burner with caution. Load the Images onto the SD card (USRP2 only) Up to 50 MHz of RF BW with 8-bit samples.Up to 25 MHz of RF BW with 16-bit samples.16-bit and 8-bit sample modes (sc8 and sc16).Load the Images onto the On-board Flash (USRP-N Series only).Load the Images onto the SD card (USRP2 only).
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