SAM-III Construction Manual
See last page for document and copyright information, File: SAM-III Magnetometer Construction.doc, Page 23
XI.
Testing and Adjusting
Required parts:
Parts list ID Qty Description
1
EIA-232 null modem cable, DB-9F/DB-9F
1
Header shorting block
1
AC power adapter, 12 Vdc, 200 mA (user
supplied or optionally provided for North
American customers)
The microprocessor has testing firmware (IB3_ENG.HEX) preinstalled that allows display and interface
testing and adjustment. The following sections test all functions and interfaces except the
magnetometer sensors. The operating system firmware (SAM3_ENG.HEX) and sensors will be installed
and tested later.
Connect the LCD module, keyboard, power connector and EIA-232 serial port connector to the SAM-
III PCB as shown below. Do not connect anything to the Aux Controls plug (X1) or Sensors plug (X2) at
this time.
Keyboard
LCD
Module
Power
Jack
Aux
Controls
Sensors
EIA-232
Interface
External Connections to PCB
Jumper for real-
time clock battery
Controller reset
push-button
Install the shorting block on JP2 to activate the internal real time clock battery