Multi-Tech MultiConnect mDot MTDOT Series, Developer'S Manual

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BOARD COMPONENTS
MultiConnect
®
mDot
TM
MTDOT Developer Guide for Japan 37
Developer Board Connectors
Note: The development board derives power from the USB connection. The Power Jack connects to the Arduino
shield socket. If the Arduino shield needs 5 V, use a 5 V power supply. A 9 V supply will not be regulated down
to 5 V.
Board Components
Label Description
J6 USB connection for mbed, serial, and SocketModem. Attaches to the ST Micro controller. This
provides access to two interfaces, one used to program the mDot and the other for debug
messages.
JP98 Serial Disconnect Header. Pins D0-D8 are connected to the Arduino headers and the DB9 serial
port. Remove these jumpers to disconnect from the RS232 transceiver chip.
JP197 J-Link Header used for JTAG access to the mDot. This requires installing resistors R94-96 & 98
and removing R88-990 & 92. See
Chapter 12 Developer Board Schematics .
S1 Reset Button. Use to reset the processor of the device attached to the board.