CONFIDENTIAL
DOC-USR-0055-05
___________________________________________________________________________________________
Z3 Technology, LLC
♦
100 N 8
th
ST, STE 250
♦
Lincoln, NE 68508-1369 USA
♦
+1.402.323.0702
55
(3)
Configure u-boot on your board to match your system configuration settings.
(a)
Reboot the board with minicom or TeraTerm on your PC (see Steps (5) and (6) in Section 7.0).
(b)
As soon as the board boots, press the space bar immediately to make it stop in the u-boot
prompt.
(c)
You should see the “Z3-DM385#” prompt. Type the following commands:
Z3-DM385# setenv nfs
_
root ‘/home/z3/z3-dm810x/filesys/fs’
Z3-DM385# setenv tftp
_
root ‘z3/z3-z3-dm810x/images’
Z3-DM385# setenv bootcmd run boot-nfs
Z3-DM385# saveenv
nfs_root is set to the fs subdirectory within the filesys link set up in step (2c).
tftp_root, when combined with the value of “server_args” in the /etc/xinetd.d/tftp file set up
in step (1b), points to the images link set up in step (2c).
(d)
After typing “saveenv”, you should see a “Writing to Nand… done” message.
(4)
Now that you’ve finished configuring, either type “boot” at the prompt or reboot the board.
(5)
You should then see TFTP being used to load code from the development PC.
(6)
To go back to booting from Flash rather than TFTP/NFS, you would type the following at the u-boot
prompt:
Z3-DM385# setenv bootcmd run nand
_
boot
_
ubifs
Z3-DM385# saveenv