User`s manual

16 RabbitLink (EG2110)
2.4 Ethernet Connections
Before proceeding, you will need to have either two straight-through Ethernet cables and
an Ethernet hub or one Ethernet crossover cable. The Ethernet cables and Ethernet hub are
available from Rabbit Semiconductor in a TCP/IP Tool Kit. More information is available
at www.rabbit.com.
Your PC must have an RJ-45 Ethernet jack. You can identify the RJ-45 Ethernet jack by
looking for an 8-connector (as opposed to a 6-connector RJ-11 phone jack) jack labeled
ETHERNET or <···> that will probably have an LED or two on it. If your PC does not have
Ethernet access, you will need to install a 10Base-T Ethernet card.
Connect your PC and the RabbitLink board to an Ethernet hub as shown in Figure 7. The
Ethernet hub may also be connected to your network.
Figure 7. Overview of Physical Connections.
Alternatively, you may use the crossover Ethernet cable to connect the RabbitLink directly
to a PC RJ-45 Ethernet jack. This is useful when using RabbitLink as a high speed local
programming interface.
2.5 Ready to Go
The green LED labeled LINK should light up once all the connections have been made
correctly.
Dynamic C or the Rabbit Field Utility may now be used to download a program to the
Rabbit-based target system from your PC. The red LED labeled USER on the RabbitLink
blinks while a download or a debug session is in progress.
NOTE: The serial baud rate in Dynamic C must match the baud rate with which
download.c was compiled.
Ethernet-based
network
1
8
1
8
1
8
Ethernet Hub
RabbitLink
Board
RJ-45 Jack
Embedded
Target