VIPER
Connectors, LEDs and jumpers
Jumpers
There are seven user selectable jumpers on the VIPER, their use is explained below.
Default settings
The default positions of the jumpers is as follows:
LK1
B
A
LK7
6
5
PL17
PL17
4
3
LK2
2
1
LK3
LK4
9
10
7
LK5
8
LK1
LK1
6
5
A
4
3
B
2
1
LK6
Rotate this diagram 90
o
clockwise to match the VIPER picture on page
Reset – LK1
A momentary switch (push to make) may be connected to LK1. When the button is
pressed the board goes into a full hardware reset. When the switch is released (open
circuit) the board reboots.
User configurable jumper 1 – LK2
This jumper can be used by an application program to signify a configuration setting.
LK2 Description
GPIO7 read as ‘0’.
GPIO7 read as ‘1’.
Default setting:
Reserved – LK3
This jumper is reserved for factory use only.
© 2004 Arcom Issue H
70