Advantech PCM-3291 User manual

PCM-3291
USER MANUAL

PCM-3291
Copyright notice
This document is copyrighted, 2000, by Advantech Co., Ltd. All rights are reserved. The original
manufacturer reserves the right to make improvements to the products described in this manual at any
time without notice.
No part of this manual may be reproduced, copied, translated or transmitted in any form or by any
means without the prior written permission of the original manufacturer. Information provided in this
manual is intended to be accurate and reliable. However, the original manufacturer assumes no
responsibility for its use, nor for any infringements upon the rights of third parties which may result
from its use. Acknowledgements
AMD is a trademark of Advanced Micro Devices, Inc.
Award is a trademark of Award Software International, Inc.
Cyrix is a trademark of Cyrix Corporation.
IBM, PC/AT, PS/2 and VGA are trademarks of International Business Machines Corporation.
Intel and Pentium are trademarks of Intel Corporation.
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RTL is a trademark of Realtek Semiconductor Co., Ltd.
C&T is a trademark of Chips and Technologies, Inc.
UMC is a trademark of United Microelectronics Corporation.
Winbond is a trademark of Winbond Electronics Corp.
STPC is a trademark of SGS Thomson Corp.
For more information on this and other Advantech products, please visit our website at:
http://www.advantech.com
For technical support and service, please visit our support website at:
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This manual is for the PCM-3291.
Part No. 2006329100
1st Edition Printed in Taiwan June 2000

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Table of Contents
CHAPTER 1 GPS INTRODUCTION……………………..1
CHAPTER 2 PCM-3291 INTRODUCTION……..…………2
2.1 Module Dimensions…………………………….………….. 3
2.2 Placement………………………….………………………..4
2.3 Connector Define…………………………………………...4~6
2.4 Jump Setting………………………………………………...7
2.5 TMARK……………………………………………………..8
2.6 10KHz clock……………………………………………..…..8
2.7 How to Use GPS PCM-3291 module..………………….….. ..9~10
CHAPTER3 D
ata Format

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USER MENU
1.GPS INTRODUCTION
GPS is fully operational and meets the criteria established in the 1960s for an
optimum positioning system. The system provides accurate, continuous , worldwide
, three-dimensional position and velocity information to users with the appropriate
receiving equipment. GPS also disseminates a form of Universal Time Coordinated
(UTC). The satellite constellation consists of 24 satellites arranged in 6 orbital planes
with 4 satellites per plane. A worldwide ground control/monitoring network monitors
the health and status of the satellites. This network also uploads navigation and other
data to the satellites. GPS can provide service to an unlimited number of users since
the user receivers operate passively(i.e., receive only). The system utilizes the concept
of one-way Time Of Arrival (TOA) ranging. Satellite transmissions are referenced to
highly accurate atomic frequency standards onboard the satellites, which are in
synchronism with an internal GPS system time base. The satellites broadcast ranging
codes and navigation data on two frequencies using a technique called Code Division
Multiple Access (CDMA); that is, there are only two frequencies in use by the system,
called L1 (1575.42MHz) and L2 (1227.6MHz). Each satellite transmits on these
frequencies, but with different ranging codes than those employed by other satellites.
These codes were selected because they have low cross-correlation properties with
respect to one another. The navigation data provides the means for the receiver to
determine the location of the satellite at the time of signal transmission, whereas the
ranging code enables the user’s receiver to determine the transit (i.e., propagation)
time of the signal and thereby determine the satellite-to-user range. This technique
requires that the user receiver also contain a clock. Utilizing this technique to measure
the receiver’s three-dimensional location requires that TOA ranging measurements be
made to four satellites. If the receiver clock was synchronized with the satellite clocks
, only three range measurements would be required. However, a crystal clock is
usually employed in navigation receivers to minimize the cost, complexity, and size of
the receiver. Thus, four measurements are required to determine user latitude,
longitude, height, and receiver clock offset from internal system time. If either system
time or altitude is accurately known, less than four satellites are required. GPS
provides two services : the Standard Positioning Service (SPS) and the Precise
Positioning Service (PPS). The SPS is designated for the civil community, whereas
the PPS is slated for U.S. authorized military and select government agency users.
Access to the GPS PPS is controlled through cryptography.

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2.GPS Application
2.1 Automotive applications.
2.2 Marine navigation applications.
2.3 Aviation applications.
2.4 Surveying.
2.5 Timing applications.
3. PCM-3291 INTRODUCTION
3.1 Top View
C1
D1
J6
J7
Engine Board
U3
ANT
J3
U1
U2
B1
A1
Table1
Table2 Table3
J4
J5
JP1
JP2
JP3
1
15
106

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3.2 Module Dimensions
3250
3775
¡í250
¡í125
350
3550
200
200
200
500
250
1050
300
Unit:mil
16.5 28.6
Unit:mm
28.6
1.6
Unit:mm

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3.3 Connector Define
Table1
PIN No PIN Name PIN No PIN Name PIN No PIN Name
JP12 IRQ7 JP11 IRQ5 JP9 IRQ4
JP8 IRQ3 JP13 IRQ3 JP14 IRQ4
JP20 IRQ14 JP21 IRQ15 JP16 IRQ7
JP19 IRQ12 JP18 IRQ11 JP17 IRQ10
Table 2
PIN No PIN Name PIN No PIN Name PIN No PIN Name
JP4 COM1 JP5 COM2 JP6 COM3
JP7 COM4
Table3
PIN No PIN Name PIN No PIN Name
JP10 External Interrupt Setting JP15 IRQ5
J7
PIN
No PIN Name PIN No PIN Name
1 Reserved 2 DGPS (Signal In) (I)
3 NC 4 Time Mark Pulse (10KHz)(o)
5 GND (Power) 6 NC
7 NC 8 NC
9 Time Mark Pulse (1PPS)(I) 10 VCC (Power)
JP1
PIN No PIN Name
JP1 Time Mark Output Setting
JP2
PIN No PIN Name
JP2 10KHz Output Setting
JP3
PIN No PIN Name
JP3 Reserved

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PC/104 connectors (J4,J5)
PC/104 connectors
Pin
Number
Signal(J4)
RowA RowB
Signal(J5)
RowC RowD
1 IOCHCHK* 0V 0V 0V
2 SD7 RESET SBHE* MEMCS16*
3 SD6 +5V LA23 IOCS16*
4 SD5 IRQ9 LA22 IRQ10
5 SD4 -5V LA21 IRQ11
6 SD3 DRQ2 LA20 IRQ12
7 SD2 -12V LA19 IRQ15
8 SD1 ENDXFR* LA18 IRQ14
9 SD0 +12 LA17 DACK0*
10 IOCHRDY (KEY) MEMR* DRQ0
11 AEN SMEMW* MEMW* DACK5*
12 SA19 SMEMR* SD8 DRQ5
13 SA18 IOW* SD9 DACK6*
14 SA17 IOR* SD10 DRQ6
15 SA16 DACK3* SD11 DACK7*
16 SA15 DRQ3 SD12 DRQ7
17 SA14 DACK1* SD13 +5V
1 2 ¡E¡E¡E¡E¡E31 32
Row B
Row A
¡E¡E¡E
J4
1 2 ¡E¡E¡E¡E¡E31 32
1 2 ¡E¡E¡E¡E¡E19 20
Row C
Row D
¡E¡E¡E
J5
1 2 ¡E¡E¡E¡E¡E19 20

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PC/104 connectors (cont.)
Pin
Number Signal(J4) RowA RowB Signal(J5) RowC RowD
18 SA13 DRQ1 SD14 MASTER*
19 SA12 REFRESH* SD15 0V
20 SA11 SYSCLK (KEY) 0V
21 SA10 IRQ7 ――
22 SA9 IRQ6 ――
23 SA8 IRQ5 ――
24 SA7 IRQ4 ――
25 SA6 IRQ3 ――
26 SA5 DACK2*
――
27 SA4 TC ――
28 SA3 BALE ――
29 SA2 +5V ――
30 SA1 OSC ――
31 SA0 0V ――
32 0V 0V ――
*Low active

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3.4 Jump Setting
Serial Port Select
Jump No Define Note
JP4 COM1 Short :Enable ; Open :Disable
JP5 COM2 Short :Enable ; Open :Disable
JP6 COM3 Short :Enable ; Open :Disable
JP7 COM4 Short :Enable ; Open :Disable
Interrupt Port Select
Jump No Define Note
JP8 IRQ3 Short :Enable ; Open :Disable
JP9 IRQ4 Short :Enable ; Open :Disable
JP11 IRQ5 Short :Enable ; Open :Disable
JP12 IRQ7 Short :Enable ; Open :Disable
The default setting is COM3, IRQ5 Enable.
Enhance
Jump No Define Note
JP13 IRQ3 Short :Enable ; Open :Disable
JP14 IRQ4 Short :Enable ; Open :Disable
JP15 IRQ5 Short :Enable ; Open :Disable
JP16 IRQ7 Short :Enable ; Open :Disable
JP17 IRQ10 Short :Enable ; Open :Disable
JP18 IRQ11 Short :Enable ; Open :Disable
JP19 IRQ12 Short :Enable ; Open :Disable
JP20 IRQ14 Short :Enable ; Open :Disable
JP21 IRQ15 Short :Enable ; Open :Disable
Note: If you want to add on Enhance part, please setting the jump of
JP10 at enable before setting JP13~JP21.

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3.5 TMARK
The TMARK pulse waveform is shown in Figure 1. This signal is a positive
logic , buffered CMOS level output pulse that transitions from a logic “low”
condition to a logic “high” at a 1 Hz rate. The TMARK output pulse rise time
is typically less than 2 nanoseconds and the pulse duration is typically 25.6
milliseconds.
Figure 1. GPS Receiver Time Mark Pulse Waveform.
3.6 10KHz clock
This is a 10KHz clock waveform that is synchronized to the UTC TMARK
pulse. The relationship between the 10KHz clock and the TMARK UTC pulse
is shown in Figure 2. This clock signal is a positive logic , buffered CMOS level
output.
Figure 2. 10KHz Clock/UTC TMARK Pulse Relationship
2.00Vch1 M5.00ms ch1 3.56V
ch1 +Width
25.600ms
1
2.00Vch3 M40us ch2 1.28V
TMARK pulse
10KHz clock
ch2 2.00V
2
3

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3.7 How to Use PCM-3291 module
1.PCM-3291 should be connected to PC104 standard connector.
2.The data input and output functions of PCM-3291 module are from the signal pins
of
enhance of standard PC XT/AT.
The signal transmission address are between 02F8H~02FFH, The address of serial
transmission control card is the same COM1 IRQ4, COM2 IRQ3 are occupied for
general use. Recommending that the set up of PCM-3291 is on COM3, IRQ5.
Please refer 3.4 Jump setting.
PC104 standard connector
GPS ANT
GAAR11 module
GAAR11 PIN Header
PC104 male
main board
GPS active antenna should be located at ourdoor without cover
CPU memory I/O
PC XT/AT structure

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3.DGPS Connection
4. Software
How to receive NMEA-0183 4800 bps No parity 8 data bits 1 stop bit
C:>232 /C3 /b4800
How to receive Binary Data Message, (9600 bps No parity 8 data bits
1stopbit)
C:>232 /C3 /b9600 /h
Currently, PCM-3291 default at
COM3,IRQ5 ,4800bps, No parity, 8 data bit, 1 stop bit.
NMEA-0183 Data Messages Regarding to details, please refer the following Data
interface specification.
NOTE.Please make sure COM3’s IRQ is set to different port other than
COM1/COM2’s while running under Windows platform.
DGPS signal in
¡Ó12V
signal output
DGPS
Receiver
GAAR11 module
main boardPC104 standard connector
GAAR11 PIN Header
1
2
5
106
DGPS
Base station