User’s Manual
81
B.1.1 Prototyping Board Features
•
Power Connection
—A a 3-pin header is provided for connection to the power supply. Note
that the 3-pin header is symmetrical, with both outer pins connected to ground and the center
pin connected to the raw V+ input. The cable of the AC adapter provided with the North
American version of the Development Kit is terminated with a header plug that connects to the
3-pin header in either orientation. The header plug leading to bare leads provided for overseas
customers can be connected to the 3-pin header in either orientation.
Users providing their own power supply should ensure that it delivers 8–24 V DC at 8 W. The
voltage regulators will get warm while in use.
•
Regulated Power Supply
—The raw DC voltage provided at the 3-pin header is routed to a 5
V switching voltage regulator, then to a separate 3.3 V linear regulator. The regulators provide
stable power to the RCM4510W module and the Prototyping Board.
•
Power LED
—The power LED lights whenever power is connected to the Prototyping Board.
•
Reset Switch
—A momentary-contact, normally open switch is connected directly to the
RCM4510W’s
/RESET_IN
pin. Pressing the switch forces a hardware reset of the system.
•
I/O Switches and LEDs
—Two momentary-contact, normally open switches are connected to
the PB4 and PB5 pins of the RCM4510W module and may be read as inputs by sample appli-
cations.
Two LEDs are connected to the PB2 and PB3 pins of the RCM4510W module, and may be
driven as output indicators by sample applications.
•
Prototyping Area
—A generous prototyping area has been provided for the installation of
through-hole components. +3.3 V, +5 V, and Ground buses run around the edge of this area.
Several areas for surface-mount devices are also available. (Note that there are SMT device
pads on both top and bottom of the Prototyping Board.) Each SMT pad is connected to a hole
designed to accept a 30 AWG solid wire.
•
Module Extension Header
—The complete pin set of the RCM4510W module is duplicated
at header J2. Developers can solder wires directly into the appropriate holes, or, for more flex-
ible development, a 2 × 25 header strip with a 0.1" pitch can be soldered into place. See
Figure B-4 for the header pinouts.
NOTE:
The same Prototyping Board can be used for several series of RabbitCore modules, and so
the signals at J2 depend on the signals available on the specific RabbitCore module.