User`s manual
Table Of Contents
- RabbitCore RCM3200 User's Manual
- Table of Contents
- 1. Introduction
- 2. Hardware Setup
- 3. Running Sample Programs
- 4. Hardware Reference
- 5. Software Reference
- 6. Using the TCP/IP Features
- Appendix A. RCM3200 Specifications
- Appendix B. Prototyping Board
- Appendix C. LCD/Keypad Module
- Appendix D. Power Supply
- Appendix E. Motor Control Option
- Notice to Users
- Index
- Schematics
User’s Manual 23
4.2.3 Serial Programming Port
The RCM3200 serial programming port is accessed using header J3 or over an Ethernet
connection via the RabbitLink EG2110. The programming port uses the Rabbit 3000’s
Serial Port A for communication. Dynamic C uses the programming port to download and
debug programs.
The programming port is also used for the following operations.
• Cold-boot the Rabbit 3000 on the RCM3200 after a reset.
• Remotely download and debug a program over an Ethernet connection using the
RabbitLink EG2110.
• Fast copy designated portions of flash memory from one Rabbit-based board (the
master) to another (the slave) using the Rabbit Cloning Board.
Programming may also be initiated through the motherboard to which the RCM3200
series module is plugged in to since the Serial Port A (PC6 and PC7), SMODE0, SMODE1,
and /RESET_IN are available on headers J1 and J2 (see Table 2).
Alternate Uses of the Serial Programming Port
All three clocked Serial Port A signals are available as
• a synchronous serial port
• an asynchronous serial port, with the clock line usable as a general CMOS input
The serial programming port may also be used as a serial port via the DIAG connector on
the serial programming cable.
In addition to Serial Port A, the Rabbit 3000 startup-mode (SMODE0, SMODE1), status,
and reset pins are available on the serial programming port.
The two startup-mode pins determine what happens after a reset—the Rabbit 3000 is
either cold-booted or the program begins executing at address 0x0000.
Three LEDs are placed next to the RJ-45 Ethernet
jack, one to indicate an Ethernet link (
LNK), one to
indicate Ethernet activity (
ACT), and one to indicate
when the RCM3200 is connected to a functioning
100Base-T network (
SPD).
The transformer/connector assembly ground is con-
nected to the RCM3200 printed circuit board digital
ground via a ferrite bead, R42, as shown in Figure 8.
The RJ-45 connector is shielded to minimize EMI
effects to/from the Ethernet signals.
Figure 8. Isolation Resistor R42
RJ-45 Ethernet Jack
R42
Chassis
Ground
Board
Ground