1-5
1.9.2.
Preparing the Board for Use
The board as shipped is ready to be connected to a terminal and the power supply without any need for
modification. However, follow the steps below to insure proper operation from the first time you apply the
power.
Figure 4
shows the placement of the jumpers and the connectors, which you need to refer to in the
following sections. The steps to be taken are:
a. Connecting the power supply.
b. Connecting the terminal.
1.9.3.
Providing Power to the Board
The board accepts two means of power supply connections. Connector J5 is a 2.1mm power jack and J6
lever actuated connector. The board accepts 7.5V to 9V DC (regulated or unregulated) at 1.5 Amp via
either one of the connectors.
Contact NO.
Voltage
1
+7.5-9V
2
Ground
1.9.4.
Selecting Terminal Baud Rate
The serial channel of MCF5307 which is used for serial communication has a built in timer used by the
ROM MONITOR to generate the baud rate used to communicate with a terminal.. It can be programmed
to a number of baud rates. After the power-up or a manual RESET, the ROM Monitor firmware
configures the channel for 19200 baud. After the ROM Monitor is running, you may issue the SET
command to choose any baud rate supported by the ROM Monitor. Refer to Chapter 2 for the discussion
of this command.
1.9.5.
The Terminal Character Format
The character format of the communication channel is fixed at the power-up or RESET. The character
format is 8 bits per character, no parity, and one stop bit. You need to insure that your terminal or PC is
set to this format.
1.9.6.
Connecting the Terminal
The board is now ready to be connected to a terminal. Use the RS-232 serial cable to connect the PC to the
SBC5307. The cable has a 9-pin female D-sub connector at one end and a 9-pin male D-sub connector at
the other end. Connect the 9-pin male connector to J4 connector on SBC5307. Connect the 9-pin female
connector to one of the available serial communication channels normally referred to as COM1 (COM2,
etc.) on the IBM PC’s or compatible. Depending on the kind of serial connector on the back of your PC,
the connector on your PC may be a male 25-pin or 9-pin. You may need to obtain a 9-pin-to-25-pin
adapter to make the connection. If you need to build an adapter, refer to
Figure 2
which shows the pin
assignment for the 9-pin connector on the board.