UM1535 datasheet(17/39 Pages) STMICROELECTRONICS

17 / 39 page

UM1535

Working with pre-flashed software

Doc ID 023036 Rev 2

17/39

# DHCP Server Configuration file.

see /usr/share/doc/dhcp*/dhcpd.conf.sample

see 'man 5 dhcpd.conf'

default-lease-time 600;

max-lease-time 7200;

option subnet-mask 255.255.255.0;

option broadcast-address 192.168.1.255;

allow bootp; #allows kernel download using tftp

ddns-update-style ad-hoc;

subnet 192.168.1.0 netmask 255.255.255.0 {

option routers 192.168.1.1;

option subnet-mask 255.255.0.0;

option domain-name "local.net";

option domain-name-servers ns.local.net;

host SPEAr {

hardware ethernet 00:11:22:33:44:55;

fixed-address 192.168.1.10;

option host-name "SPEAR";

next-server

192.168.1.1;

filename "uImage.img"; #kernel image filename in tftp path

option root-path /opt/STM/STLinux-2.4/devkit/armv7/target/

}

With this configuration, the DHCP server replies to a request from a SPEAr evaluation board

with Ethernet MAC address 00:11:22:33:44:55 (just as in the example) by passing the entire

network configuration.

The "allow bootp" and "filename" parameters enable U-Boot to download and boot a kernel

image from the host using the TFTP file transfer protocol (you will need a TFTP server on

the host, see below).

In order to apply the new configuration settings, restart he DHCP server. To do this, first

check the status of the DHCP daemon using the following commands from the Linux PC

shell:

# /etc/rc.d/init.d/dhcpd status

If the DHCP daemon is stopped, start it with the following command:

# /etc/rc.d/init.d/dhcpd start

UM1535 Datasheet(PDF) 17 Page - STMicroelectronics