Board Jumpers - Embedded Artists Bluetooth QuickStart Kit User Manual

Bluetooth QuickStart Kit Version 1.0 - User's Guide

5.4 Board Jumpers

There are six jumpers and one switch on the board. These are illustrated in Figure 18 and
explained in Table 3 below.
Automatic bootloader enabled
Automatic bootloader not enabled
Figure 18 – Jumper Description
The table below explains the different jumpers.
J3 – DBGSEL
Enable or disable the LPC2106
JTAG interface
J4 – RTCK
Some JTAG interfaces require the
JTAG signal RTCK to be
grounded. Please consult your
JTAG interface manual for details.
J5 – RTS
The application program has the
option of controlling the RTS/CTS
signals on the RS232 serial
channel, if needed.
If used, signal P0.23 is the RTS
signal and P0.23 must be an input.
Copyright 2004-2005 © Embedded Artists AB
J3
J4
J5
J6
J8
J10
Jumper shorted = Enable JTAG
Jumper open =
Jumper shorted = JTAG signal RTCK grounded
Jumper open =
Jumper shorted = Pin P0.23 act as RS232-RTS signal.
Jumper open =
JTAG not enabled (default
position)
JTAG signal RTCK is left
untouched (default position)
P0.23 must be an input.
Pin P0.23 is free to be used for
other tasks (default position)
Page 25