Texas Instruments DVEVM, Getting Started Manual, Page: 62 / 70

Restoring and Updating the DVEVM Hard Disk Drive
A-18
A.8 Restoring and Updating the DVEVM Hard Disk Drive
This section describes how to restore and update all the files on the
DVEVM hard disk drive (HDD), including the MontaVista file system and
the demos. Using these restore procedures, you can return your board to
a known state, should anything happen to the data on the board’s HDD.
This section assumes that you have configured a host Linux workstation
with the software necessary to perform an NFS root mount with the
DVEVM as described in Section 4.3.4 and Section 4.3.5.
In this section, U-Boot is always located at the start of flash memory
(address 0x02000000) on the target. Similarly, uImage, the Linux kernel
program, is booted from the target flash memory address of 0x02050000.
A.8.1 System Setup
You should make sure the following system setup steps have been
performed before you attempt to restore or update the hard disk drive:
1) Inspect jumper J4, which is labeled "CS2 SELECT". Make sure
FLASH is selected.
2) Connect the Ethernet port of the host workstation to a router.
Configure the host Ethernet port to obtain IP address dynamically via
a DHCP server running inside the router.
3) Connect the Ethernet port of the target DVEVM to another port on the
same router. This establishes a network connection with your host
workstation.
4) Connect an RS-232 cable from the UART0 port of the target DVEVM
board to the host workstation.
5) On the host workstation, open a terminal session to the target
DVEVM board with the following characteristics:
■
Bits per Second: 115200
■
Data Bits: 8
■
Parity: None
■
Stop Bits: 1
■
Flow Control: None
For example, you can create a terminal session with HyperTerminal
or TeraTerm on MS Windows, and Minicom or C-Kermit on Linux.
6) Start an NFS server on the host workstation. This document
assumes the host path /home/user/workdir/filesys contains a file
system that the target DVEVM can use for root mounting.