DS033-3 July 2004

©2004 Reg. No. 227 4001, England

Page

2

Jumper Settings

The Pin Headers provide access to the GPS modules pins.

Pin 1 of each of the pin headers connects through to the

GPS module as indicated in the table below. Pin 2 of each

pin header is connected to ground.

Please refer to the Data Interface section on page 4 of

datasheet DS031 for information on the functionality of

these pins.

Jumper

Link

GPS Pin

Link

Open

Link

Closed

I/O

ON_OFF

ON/OFF

ON

OFF

Input

B_R

BAUD RATE

9600

4800

Input

PPS

PPS

N/A

N/A

Output

RST

RESET

-

RESET

Input

STY

STY1

-

STY1

Input

SBY

Standby

-

Standby

Input

ALM

ALMRDY

N/A

N/A

Output

Power Connections

Power can be supplied to the board at either 3.3Vdc or 4-

9Vdc via the 3V3 or JP1 pin headers respectively.

Data Connections

Data access is provided at either RS232 or TTL voltage

levels.

• The 9-way D-Type connector provides data transfer at

RS232 voltage levels. It may be connected directly to a

COM port of a PC.

• The COMMS pin header provides direct access to the

GPS module 3.3V data lines.

COMMS_1 = GPS Data Transmit

COMMS_2 = GPS Data Recieve

In this case the RS232 Driver chip can be disabled by

removing R3 and R9.

Status LEDs

LED1 (the green LED) illuminates to indicate that a valid almanac is available.

LED2 (the red LED) flashes to indicate that no GPS information is available.

LED2 remains off if GPS information is available.

PCB Dimensions: 85.5mm x 33.5mm

Other Information

For a detailed description of the GPS Module please see the following documents:

GPS Datasheet:

DS031

GPS Programmers Guide:

DS032

Software Information

The following software may be used to operate on a PC in conjunction with the evaluation board:

Microsoft Autoroute

•

This produces a complete Satellite navigation system. The GPS information is utilised to plot your position

on a map of your current location.