User`s manual

8 rabbit.com Introduction
As shown in Figure 1-1, the Rabbit programming cable connects a PC serial port to the programming con-
nector of the target system. Dynamic C or the Rabbit Field Utility (RFU) runs as an application on the PC,
and can cold boot the Rabbit 4000 based target system with no pre-existing program installed in the target.
A USB to RS232 converter may also be used instead of a PC serial port. Rabbit 4000-based targets may
also be programmed and debugged remotely over a local network or even the Internet using a RabbitLink
card.
Figure 1-1 The Rabbit 4000 Microprocessor and Dynamic C
Dynamic C programming uses serial port A for software development. However, it is possible for the
user’s application to also use serial port A, with the restriction that debugging is not available.
PC Hosts Dynamic C
Rabbit Programming
Cable
Programming
Connector
Targe t
System
Rabbit
Microprocessor
Level
Conversion
PC Serial
Port