Xilinx Alveo U250 Getting Started Guide

9. Cold boot the machine to load the new rmware image on the FPGA.
Downgrading Packages
You can downgrade the XRT and deployment shell on your Alveo card by following these steps.
Both packages must be upgraded concurrently. Note that the deployment shell package must be
downgraded prior to the XRT package.
1. Download the desired version of the deployment shell and XRT package les. Both must be
from the same release (i.e both are 2018.2 package releases).
2. Run the following command in a Linux terminal. The shell package name is the name of the
package le downloaded in step 1.
$ sudo apt install <deb-dir>/xilinx_<desired_depl_shell_version>.deb
3. Cold boot your machine by fully powering it o and then on.
4. Manually generate the xbutil flash command by following the instrucons in Appendix
C: Generang the xbul ash Command.
sudo /opt/xilinx/xrt/bin/xbutil flash -a <shell_name> -t <timestamp> -d
<card_ID>
Note: Not specifying the card ID within the xbutil flash command via the -d opon can result in
damage to the card.
5. Run the manually generated xbutil flash command.
If you have mulple cards installed on the server, you MUST run the xbutil flash
command separately for each card.
6. You will be asked to conrm the update, as shown below. Type y and enter.
Probing board[0]: DSA on FPGA needs updating
DSA on below cards will be updated:
Card [0]
Are you sure you wish to proceed? [y/n]
Flashing will take up to 10 minutes. Successfully ashing a new card results in a message
similar to the one shown below. If you do not see one, refer to Chapter 7: Troubleshoong.
INFO: ***Found 880 ELA Records
Idcode byte[0] ff
Idcode byte[1] 20
Idcode byte[2] bb
Idcode byte[3] 21
Idcode byte[4] 10
Enabled bitstream guard. Bitstream will not be loaded until flashing is
finished.
Erasing flash............................................
Programming flash............................................
Cleared bitstream guard. Bitstream now active.
DSA image flashed succesfully
Cold reboot machine to load the new image on FPGA
7. Cold boot the machine to load the new rmware image on the FPGA.
Chapter 4: Installing the Deployment Software
UG1301 (v1.3) February 12, 2019 www.xilinx.com
Getting Started with Alveo Accelerator Cards 32
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Xilinx Alveo U250 Specifications

General

Brand	Xilinx
Model	Alveo U250
Category	Computer Hardware
Language	English