On-Board Peripherals List
From a hardware configuration (jumpering) standpoint, there are five hardware sub-systems to be
aware of:
•
Voltage
Regulator
•
LED1 – green
•
LED2 – yellow
•
S1 - push-button switch
•
RS-232 port - DB9
Powering Options
The SN171 Proto Board can be powered from a two-pin
battery connector. Put JMP1 on pins 2 and 3 (connecting
VBAT to VCC) and connect a battery (or other 2.7 - 3.4
volt source) to the white two-pin header labeled "J5 VBAT
IN".
Alternatively, you can power the board externally by first
connecting JMP1 pins 1 and 2 (connecting VEXT to
VCC). You can then bring in 5-9 volts DC power throug
the barrel connector, or through the VEXT and GND pins
on terminal block TB
h
2.
Jumper
When Installed
JMP1
Connect pins 1-2 to get VCC from VEXT
JMP1
Connect pins 2-3 to get VCC from VBAT
On-board LEDs
Jumper
When Installed
JMP3
LED1 (green) can be controlled via GPIO1
JMP4
LED2 (yellow) can be controlled via GPIO2
Simply remove these jumpers to reclaim these pins for other
purposes.
Document Number 600-0011A