AXIOMTEK DASP-52282 User manual

DASP-52282
12-bit 330KHz Multifunction
w/ Free-Running Card
User’s Manual

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Disclaimers
The information in this manual has been carefully checked and is
believed to be accurate. Axiomtek Co., Ltd. assumes no
responsibility for any infringements of patents or other rights of
third parties which may result from its use.
Axiomtek assumes no responsibility for any inaccuracies that
may be contained in this document. Axiomtek makes no
commitment to update or to keep current the information
contained in this manual.
Axiomtek reserves the right to make improvements to this
document and/or product at any time and without notice.
No part of this document may be reproduced, stored in a retrieval
system, or transmitted, in any form or by any means, electronic,
mechanical, photocopying, recording, or otherwise, without the
prior written permission of Axiomtek Co., Ltd.
Copyright 2004 by Axiomtek Co., Ltd.
All rights reserved.
September 2004, Version A1.0
Printed in Taiwan

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ESD Precautions
Integrated circuits on computer boards are sensitive to static
electricity. To avoid damaging chips from electrostatic discharge,
observe the following precautions:
Do not remove boards or integrated circuits from their anti-static
packaging until you are ready to install them.
Before handling a board or integrated circuit, touch an unpainted
portion of the system unit chassis for a few seconds. This helps
to discharge any static electricity on your body.
Wear a wrist-grounding strap, available from most electronic
component stores, when handling boards and components.
Trademarks Acknowledgments
AXIOMTEK is a trademark of Axiomtek Co., Ltd.
IBM is a registered trademark of International Business
Machines Corporation.
MS-DOS, and Windows 95/98/NT/2000 are trademarks of
Microsoft Corporation.
Phoenix-Award is a trademark of Phoenix-Award Software,
Inc.
IBM, PC/AT, PS/2, VGA are trademarks of International
Business Machines Corporation.
Intel and Celeron, Pentium III are trademarks of Intel
Corporation.
Other brand names and trademarks are the properties
and registered brands of their respective owners.

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Table of Contents
Chapter 1 Introduction.....................................................1
1.1 Features ...................................................................2
1.2 Specifications..........................................................3
1.3 Accessories.............................................................5
Chapter 2 Hardware Installation....................................7
2.1 Board Layout...........................................................7
2.2 Signal Connections.................................................8
2.2.1 Signal Connection Descriptions ............................ 8
2.2.2 Digital Input Connector CON1 .............................. 9
2.2.3 Digital Output Connector CON2 ......................... 11
2.2.4 A/D, D/A and Timer/Counter Connector CON4 13
2.3 Jumper Setting ......................................................16
2.3.1 ADC Clock Source (JP4) ...................................... 16
2.3.2 DAC1, DAC2 Output Range Selection (JP8 and
JP9) ............................................................................ 16
2.3.3 A/D Single-Ended / Differential Selection (JP1) . 16
2.4 A/D, D/A and DI/DO Circuits and Wiring .............17
2.5 Quick setup and test.............................................19
Chapter 3 Theorem of Operation .................................25
3.1 Overview of DASP-52282 System Architecture
and Operation ................................................................25
3.2 Acquisition Modes of Analog Input.....................26
3.2.1 Polling Mode ......................................................... 26
3.2.2 Pacer Mode........................................................... 26
3.2.3 External Trigger Mode .......................................... 27
3.3 Double Buffering Mechanism For Fast Data
Acquisition .....................................................................30
3.3.1 On Board FIFO and FIFO Half Full Interrupt ......... 30
3.3.2 Circular Buffer for Massive Data Buffering .......... 32
3.4 Automatic Scan .....................................................32
3.5 Analog Input Range, ADC Code and AD Value ..33
Chapter 4 Register Structure and Format ...................37
4.1 Overview ................................................................37
4.2 I/O Register Map....................................................38
4.2.1 Digital Input Buffer Register .................................. 38
4.2.2 Digital Output Latch Register ............................... 38

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4.2.3 General Status Buffer Register.............................. 38
4.2.4 Command Output Latch Register ....................... 40
4.2.5 A/D Data Register ................................................. 43
4.2.6 DAC Channel 1 Output Latch Register................ 43
4.2.7 A/D FIFO Data Register......................................... 43
4.2.8 DAC Channel 2 Output Latch Register................ 44
4.2.9 8254 Timer/Counter Register................................ 44
4.2.10 8254 Timer/Counter Control Words Register..... 44
4.2.11 Clear FIFO Content Register............................... 45
4.2.12 Clear Flag Register ............................................. 45
4.2.13 Enable DAC1 and DAC2 Output Register ......... 45
4.2.14 A/D ADC Software Polling Control Register...... 46
4.2.15 Enable ADC Register .......................................... 46
4.2.16 Disable ADC Register.......................................... 46
Chapter 5 Calibration .....................................................47
5.1 Calibration VR Description...................................47
5.2 D/A Calibration ......................................................48
5.3 A/D Calibration Steps ...........................................48
Appendix A Analog Input Gain Mode
Configuration .....................................................................49
Appendix B Dimension of DASP-52282 and
Accessories ..........................................................................51

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DASP-52282 Card User’s Manual
Introduction 1
C h a p t e r 1
Introduction
The DASP-52282 is a high performance, PCI bus multi- function
card. It supports a 330KHz sampling rate, 16 single-ended or 8
differential AI, 16DI, and 16 DO. The DASP-52282 also features
an all new free-running mechanism to reduce the S/W
development efforts, and provides high/low gain options for
user's applications.
Advanced S/W Mechanism: Free-running
Free-running is a brand new data-retrieving mechanism to mainly
save software SW RD 30% -- 50% of the time and effort in
developing application programs. It helps software RD by using
several rows of simple programs to read data, instead of
countless numbers in the past.
Board identification- Serial Number on EEPROM
The DASP stores the serial number of each DASP in the
EEPROM before shipping. The PCI scan utility can scan all the
DASP and show users the serial number of each DASP, helping
the user to easily identify and access each card.

DASP-52282 Card User’s Manual
Introduction
2
Easily Developing Application Programs-Various Sample
Programs
The DASP-52282 series provides many user-friendly sample
programs to help users developing various application programs
in different units, such as VB, VC, BCB, and Delphi. And it also
supports the most popular Labview 6.0/7.0 drivers. The API of
the DASP-52282 has passed strict assembling tests that helps
users not necessarily writer such complicated and wordy
programs while using it.
Easy to Troubleshoot Hardware Resource- PCI Scan
Utility
The PCI scan utility can scan all the DASP products within the
system, and can show users all system resources, such as serial
numbers, IRQ, and I/O addresses. This lets users clearly see
through and immediately know whether all DASPs are working
normally, decreasing the time of searching confirmation.
 DASP-52282:
12-bit, 330 KHz multifunction board
 DASP-52282L:
12-bit, 330 KHz multifunction board w/o DAC
 DASP-52282H:
12-bit, 330 KHz high-gain multifunction board
 DASP-52282HL:
12-bit, 330 KHz high-gain multifunction board w/o
DAC
1.1 Features
 2 channel 12-bit D/A voltage output
 16 D/I and 16 D/O (TTL compatible)
 Maximum sampling rate up to 330KHz
 Supports free-running mechanism with 1K FIFO
 A/D trigger mode: software trigger, pacer
trigger, external trigger
 Supports software programmable gain
 Supports Windows® 98/NT/2000/XP, Labview
6.0/7.0 driver
 Supports VB, VC, BCB, Delphi sample program

DASP-52282 Card User’s Manual
Introduction 3
1.2 Specifications
Analog to Digital Converter (A/D)
 Channels: 16 Single-ended or 8 differentials
 Resolution: 12-bit
 FIFO size: 1K samples
 Sampling Rate: 330KS/s max.
 Conversion Time: 3µ s
 ADC input range: ±10V
 Input protect: 30 Vp-p
 On chip sample and hold.
 Programmable Gain
 Low Gain (DASP-52282/ DASP-52282L only)
Gain 0.5 1 2 4 8
Unipolar N/A 0~10V 0~５v0~2.5v 0~1.25v
Bipolar ±10V ±5v ±2.5v ±1.25v ±0.625v
 High Gain (DASP-52282H/ DASP-52282HL)
Gain 0.5 1 10 100 1000
Unipolar N/A 0~10V 0~1V 0~0.1V 0~0.01V
Bipolar ±10V ±5v ±0.5V ±0.05V ±0.005V
 Small signal bandwidth for PGA:
 Low Gain (DASP-52282/ DASP-52282L only)
Gain 0.5 1 2 4 8
Bandwidth 5MHz 5 MHz 4 MHz 1.3 MHz 600 KHz
 High Gain (DASP-52282H/ DASP-52282HL only)
Gain 0.5 1 10 100 1000
Bandwidth 1MHz 1 MHz 80 KHz 10 KHz 1 KHz
 Drift: 0.1 LSB @ gain 0.5
 Max. input voltage: ±20V
 Input impedance: 10000 MΩ6 pF║
 On chip sample and hold

DASP-52282 Card User’s Manual
Introduction
4
 AD Trigger Method:
Software, Pacer, External
(Pre-trigger, Post trigger, Middle trigger)
 Analog Input Data Transfer Method:
Polling, Interrupt, FIFO
 Operation mode:
Polling mode, Pacer mode, Interrupt mode,
External pre-trigger mode,
External post trigger mode,
External middle trigger mode
 DC Accuracy:
INL: +/- 1 LSB @ gain 0.5
DNL: +/- 1LSB @ gain 0.5
 AC Accuracy: SNR: 71dB @ gain 0.5
 Automatic Scan Mechanism
Digital to Analog Converter (D/A)
(only DASP-52282 / DASP-52282H)
 Channels: 2 independent
 Resolution: 12-bit, analog device AD7945BR
 Output range:
Bipolar: -9.9998V ~ 10.0003V @ -10~+10V
Unipolor: 0.0003V ~ 10.0002V @ 0 ~ 10V
 Accuracy: +/- 0.5 LSB
 Offset: 1%
 Slew Rate: 13V/µs
 Drift: +/- 0.5 LSB
 Output Driver: ±5mA
 Max. Transfer Rate: 20µ S/s
 Output Impendence: 15 Ω
 Settling Time: 0.6 ns to 0.01% for Full Scale
Step
 Linearity: ±1/2 bit

DASP-52282 Card User’s Manual
Introduction 5
Digital I/O
Digital Input Digital Output
Channel 16 16
Type TTL level TTL level
Voltage low VIL = 0.8V max.
IIL =-0.4mA max.
VOL = 0.5V max
@IOL =8mA max.
Voltage high VIH = 2.0V min.
IIH = 20 A max.
VOH = 2.7V min
@IOH =-400A max.
1.3 Accessories
To make the DASP-52282 functionality complete, we carry a
versatility of accessories for different user requirements in the
following items:
Wiring Cable
 CB-89037-2:
37-pin female D-sub type cable with 2m length
 CB-89037-5:
37-pin female D-sub type cable with 5m length
The shielded D-sub cable with 2m and 5m are designed for
the DASP-52282 analog I/O connector, respectively.
 CB-89320-2:
20-pin female flat type cable with 2m length
 CB-89320-5:
20-pin female flat type cable with 5m length
The flat cable with 2m and 5m are designed for the
DASP-52282 digital I/O connector, respectively.
Terminal Block
 TB-88037:
D-sub 37P female terminal block with DIN-rail
mounting
The terminal block is directly connected to analog I/O
connector of the DASP-52282.

DASP-52282 Card User’s Manual
Introduction
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 TB-88320:
Flat type 20P female terminal block with
DIN-rail mounting
The terminal block is directly connected to D/I or D/O
connector of the DASP-52282.
Daughter Board
 DB-87822:
16 isolated D/I daughter board
The board contains 16 channels isolated digital input which
is designed for TTL level digital input signal to the
DASP-52282.
 DB-87825:
16 relay D/O daughter board
The board contains 16 channels relay output which is driven
by TTL level digital output signal of the DASP-52282.

DASP-52282 Card User’s Manual
Hardware Installation 7
C h a p t e r 2
Hardware Installation
2.1 Board Layout
CON4
JP1
CON1 CON2
CON3
1 3 5
2 4 6
1 3 5
2 4 6
2 4 6 8
1 3 5 7
JP9JP8VR2VR3VR1 VR5 VR6 VR7 VR10VR8 VR9
JP4
1 2 1 2 19 20 19 20
1 2 3
JP7
10 9
2 1
REV: D DASP-52282
5 3 1 6 4 2
VR4
Board Layout for DASP-52282

DASP-52282 Card User’s Manual
Hardware Installation
8
2.2 Signal Connections
2.2.1 Signal Connection Descriptions
Signal Connections for DASP-52282
Referring to above figure, the accessories of the DASP-52282
are depicted and described as below.
 CON1:
The I/O connector CON1 on the DASP-52282 is a
20-pin flat connector for digital input signals. CON1
enables you to connect to accessories, either the
daughter board DB-87822 or the terminal block
TB-88320, with the flat cable CB-89320-2 or
CB-89320-5.
 CON2:
The I/O connector CON2 on the DASP-52282 is a
20-pin flat connector for digital output signals. CON2
enables you to connect to accessories, either the
daughter board DB-87825 or the terminal block
TB-88320, with the flat cable CB-89320-2 or
CB-89320-5.
 CON3:
The I/O connector CON3 on the DASP-52282 is a
JTAG test signal for internal usage only.
 CON4:
The I/O connector CON4 on the DASP-52282 is a
37-pin D-sub connector for analog input and output
signals. CON4 enables you to connect to accessory
TB-88037 with the shielded cable CB-89037-2 or
CB-89037-5.

DASP-52282 Card User’s Manual
Hardware Installation 9
2.2.2 Digital Input Connector CON1
CON1 CB-89320 DB-87822
CON1 CB-89320 TB-88320
DI Signal Connections for DASP-52282

DASP-52282 Card User’s Manual
Hardware Installation
10
 CON1: Digital Input Connector Pin Assignment
(20-pin Flat Connector)
Pin Description Pin Description
1 Digital Input 0/TTL 2 Digital Input 1/TTL
3 Digital Input 2/TTL 4 Digital Input 3/TTL
5 Digital Input 4/TTL 6 Digital Input 5/TTL
7 Digital Input 6/TTL 8 Digital Input 7/TTL
9 Digital Input 8/TTL 10 Digital Input 9/TTL
11 Digital Input 10/TTL 12 Digital Input 11/TTL
13 Digital Input 12/TTL 14 Digital Input 13/TTL
15 Digital Input 14/TTL 16 Digital Input 15/TTL
17 PCB’s GND 18 PCB’s GND
19 PCB’s +5V Output 20 PCB’s +12V Output

DASP-52282 Card User’s Manual
Hardware Installation 11
2.2.3 Digital Output Connector CON2
CON2 CB-89320 DB-87825
CON2 CB-89320 TB-88320
DO Signal Connections for DASP-52282

DASP-52282 Card User’s Manual
Hardware Installation
12
 CON2: Digital Output Connector Pin Assignment
(20-pin Flat Connector)
Pin Description Pin Description
1 Digital Output 0/TTL 2 Digital Output 1/TTL
3 Digital Output 2/TTL 4 Digital Output 3/TTL
5 Digital Output 4/TTL 6 Digital Output 5/TTL
7 Digital Output 6/TTL 8 Digital Output 7/TTL
9 Digital Output 8/TTL 10 Digital Output 9/TTL
11 Digital Output 10/TTL 12 Digital Output 11/TTL
13 Digital Output 12/TTL 14 Digital Output 13/TTL
15 Digital Output 14/TTL 16 Digital Output 15/TTL
17 PCB’s GND 18 PCB’s GND
19 PCB’s +5V Output 20 PCB’s +12V Output

DASP-52282 Card User’s Manual
Hardware Installation 13
2.2.4 A/D, D/A and Timer/Counter Connector
CON4
 CON4: A/D, D/A and Timer/Counter Connector
Pin Assignment
CON4
CB-89037
CB-89037
TB-88037
AIO Signal Connections for DASP-52282

DASP-52282 Card User’s Manual
Hardware Installation
14
D-Sub 37-pin Connector for Single-Ended Signal
Pin Description Pin Description
1 Analog Input 0 20 Analog Input 8
2 Analog Input 1 21 Analog Input 9
3 Analog Input 2 22 Analog Input 10
4 Analog Input 3 23 Analog Input 11
5 Analog Input 4 24 Analog Input 12
6 Analog Input 5 25 Analog Input 13
7 Analog Input 6 26 Analog Input 14
8 Analog Input 7 27 Analog Input 15
9 Analog Ground 28 Analog Ground
10 Analog Ground 29 Analog Ground
11 No Connect 30 DAC 1 Output
12 No Connect 31 No Connect
13 +12V 32 DAC 2 Output
14 Analog Ground 33 No Connect
15 Digital Ground 34 No Connect
16 Timer/Counter 0 Output 35 No Connect
17 External Pulse Input 36 No Connect
18 OSC clock Out (8MHz) 37 External Clock Input
19 +5V