V1.1 – Mar-11
User’s Manual
Page 5 of 18
1 Introduction
1.1 Purpose
The GPS Evaluation Kit EVA1084 allows an easy evaluation of Maestro’s GPS re-
ceiver module A1084-A/-B by offering quick access to the ports of the module.
The EVA1084-A serves three major purposes:
•
As a demonstration package of the module’s capabilities
Powering the A1084-A GPS receiver module via the USB connector and con-
necting the GPS antenna with sufficient view to the sky will result in an NMEA
output with position information.
•
As an example how to integrate the module into a system
The schematic in chapter “10 Board Schematics” is a basic example of how to
integrate the GPS module into an application or system.
•
To support an easy temporary design in
The signals provided on the Evaluation Kit allow direct integration into a sur-
rounding system making it an ideal development tool.
The EVA1084-A can especially demonstrate that an active GPS antenna connected
to the Auxiliary Antenna Input and a passive GPS antenna connected to the Primary
Antenna Input will result in outstanding GPS performance. The user can switch
between the two antenna connectors with the ANT_SW signal provided by the DIP
switch.
A Supercap is used to continue RTC operation and to back-up SRAM during power
off periods. The firmware provided on the A1084-A delivered with the EVA1084-A is
identical to the standard firmware delivered on single A1084 GPS receiver modules.
1.2 Contents
The EVA1084 includes the following components:
•
Demonstration board (labeled EVA1084-A) with one A1084-A GPS receiver
•
Active GPS antenna
•
Passive GPS antenna
•
USB cable to connect to your PC
•
CD with complete documentation and Maestro’s GPS Cockpit software
Please check your package for completeness and connect the components properly.
1.3 Difference: A1084-A and A1084-B
Please note that there is no separate evaluation board for the A1084-B. The A1084-B
is a subset of the A1084-A. It holds only one (primary) antenna input which allows the