Prototyping Board Expansion - Rabbit RabbitCore RCM2300 Getting Started Manual

Distributor of Digi International: Excellent Integrated System Limited
Datasheet of 101-0453 - MODULE RABBITCORE RCM2300
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2.2.2 Prototyping Board Expansion

The Prototyping Board comes with several unpopulated areas, which may be filled with
components to suit the user's development needs. After you have experimented with the
sample programs in Section 3.5, you may wish to expand the Prototyping Board's capabil-
ities for further experimentation and development. Refer to the Prototyping Board sche-
matic (090–0122) for details as necessary.
• Module Extension Headers
ules is duplicated at these two sets of headers. Developers can solder wires directly into
the appropriate holes, or, for more flexible development, 0.1" pitch 26-pin header strips
can be soldered into place. See Figure 1 for the header pinouts.
—Two 2-wire or one 5-wire RS-232 serial port can be added to the Prototyping
• RS-232
Board by installing an RS-232 driver IC and four capacitors. The Maxim MAX232CPE
driver chip or a similar device is recommended for U2. Refer to the Prototyping Board
schematic for additional details.
A 10-pin 0.1-inch spacing header strip can be installed at J6 to permit connection of a
ribbon cable leading to a standard DE-9 serial connector.
All RS-232 port components mount to the top side of the Prototyping Board below and
to the left of the MASTER
NOTE: The RS-232 chip, capacitors and header strip are available from electronics dis-
tributors such as Digi-Key.
• Prototyping Board Component Header
are hard-wired to the Prototyping Board LEDs and switches through JP1 on the under-
side of the Prototyping Board.
To disconnect these devices and permit
the pins to be used for other purposes, cut
the traces between the pin rows of JP1.
Use a knife or similar tool to cut or break
the traces crossing JP1 in the area
between the silk-screened arrows, as
indicated in Figure 3.
Use jumpers across the positions on
JP1 if you need to reconnect any of the
devices later on.
8
—The complete pin set of both the master and slave mod-
module position.
—Four I/O pins from the RCM2300 module
Cut
Figure 3. Prototyping Board Header JP1
(located on BOTTOM SIDE of board)
DS2 DS3 S2
S3
JP1
PE1 PE7 PB2 PB3
RabbitCore RCM2300
Cut