ADLINK Technology NuDAQ ACL-8216 User manual

NuDAQ

ACL-8216
16-bit High Resolution
Data Acquisition Card
User’s Guide

@Copyright 1996~2000 ADLINK Technolgoy Inc.
All Rights Reserved.
Manual Rev. 4.10: April 15, 2000
The information in this document is subject to change without prior
notice in order to improve reliability, design and function and does
not represent a commitment on the part of the manufacturer.
In no event will the manufacturer be liable for direct, indirect, special,
incidental, or consequential damages arising out of the use or
inability to use the product or documentation, even if advised of the
possibility of such damages.
This document contains proprietary information protected by
copyright. All rights are reserved. No part of this manual may be
reproduced by any mechanical, electronic, or other means in any
form without prior written permission of the manufacturer.
Trademarks
NuDAQ, ACL-8216 are registered trademarks of ADLINK Technology
Inc.,
Other product names mentioned herein are used for identification
purposes only and may be trademarks and/or registered trademarks
of their respective companies.

Contens •i
Table of Contents
How to Use This Guide.............................................iii
Chapter 1 Introduction .............................................1
1.1 Features..............................................................................2
1.2 Specifications.....................................................................2
1.4 Software Support................................................................4
Chapter 2 Installation...............................................5
2.1 What You Have ...................................................................5
2.2 Unpacking...........................................................................5
2.3 ACL-8216's Layout...............................................................6
2.4 Jumper and DIP Switch Description ...................................8
2.5 Base Address Setting..........................................................8
2.6 Analog Input Channel Configuration ................................11
2.7 DMA Channel Setting........................................................11
2.8 Internal/External Trigger Setting......................................12
2.9 Clock Source Setting........................................................13
2.10 IRQ Level Setting..............................................................14
2.11 D/A Reference Voltage Setting.........................................14
2.12 Connectors Pin Assignment..............................................16
2.13 Daughter Board Connection .............................................18
Chapter 3 Registers Format...................................21
3.1 I/O Port Address................................................................21
3.2 A/D Data Registers & Status Control Register....................22
3.3 A/D Channel Multiplexer Register.....................................23
3.4 A/D Range Control Register..............................................24
3.5 A/D Operation Mode Control Register...............................25
3.6 Clear Interrupt Register....................................................26
3.7 Software Trigger Register.................................................26
3.8 Digital I/O register.............................................................26
3.9 D/A Output Register..........................................................28
3.10 Internal Timer/Counter Register.......................................28
Chapter 4 Operation Theorem................................29
4.1 A/D Conversion.................................................................29
4.2 D/A Conversion................................................................32

ii •Contens
4.3 Digital Input and Output....................................................33
4.4 Timer/Counter Operation..................................................33
Chapter 5 C/C++ Library..........................................39
5.1 Installation........................................................................39
5.2 _8216_Initial......................................................................40
5.3 _8216_Switch_Card_No.....................................................41
5.4 _8216_DI............................................................................42
5.5 _8216_DI _Channel............................................................42
5.6 _8216_DO..........................................................................43
5.7 _8216_DA ..........................................................................44
5.8 _8216_AD_Input_Mode ......................................................46
5.9 _8216_AD_Set_Channel ....................................................47
5.10 _8216_AD_Set_Range .......................................................49
5.11 _8216_AD_Set_Mode.........................................................50
5.12 _8216_AD_Soft_Trig ..........................................................52
5.13 _8216_AD_Acquire ...........................................................53
5.14 _8216_CLR_IRQ.................................................................54
5.15 _8216_AD_DMA_Start........................................................54
5.16 _8216_AD_DMA_Status......................................................57
5.17 _8216_AD_DMA_Stop ........................................................57
5.18 _8216_AD_INT_Start..........................................................59
5.19 _8216_AD_INT_Status........................................................60
5.20 _8216_AD_INT_Stop ..........................................................60
5.21 _8216_AD_Timer...............................................................61
5.22 _8216_Timer_Start ............................................................62
5.23 _8216_Timer_Read............................................................62
5.24 _8216_Timer_Stop.............................................................63
Chapter 6 Calibration & Utilities............................65
6.1 What do you need............................................................65
6.2 VR Assignment..................................................................65
6.3 A/D Adjustment.................................................................66
6.4 D/A Adjustment.................................................................66
Appendix A Demo Programs...................................69
Product Warranty/Service........................................71

How to Use This Guide•iii
How to Use This Guide
This manual is designed to help you use the ACL-8216. The manual
describes how to modify various settings on the ACL-8216 card to meet
your requirements. It is divided into six chapters:
•Chapter 1, "Introduction," gives an overview of the product features,
applications, and specifications.
•Chapter 2, "Installation," describes how to install the ACL-8216. The layout of
ACL-8216 is shown, the switch setting for base address, and jumper
setting for analog input channel configuration, reference voltage
setting, trigger source, interrupt level and DMA channel are specified.
The connectors' pin assignment and how to connect the outside
signal are described.
•Chapter 3, "Registers format," describes the details of register format and
structure of the ACL-8216, this information is very important for the
programmers who want to control the hardware by low-level
programming.
•Chapter 4, "Operation Theorem" describes how to operate the ACL-8216. The
A/D, D/A, DIO and timer/counter functions are introduced. Also, some
programming concepts are specified.
•Chapter 5, "C/C++ Library," describes the C++ Library for DOS environment.
•Chapter 6, "Calibration and utilities," describes how to calibrate the ACL-8216
for accurate measurement.

Introduction
•
1
1
Introduction
The ACL-8216 is a high performance, highresolution multi-function
data acquisition card for the IBM PC or compatible computers.
CH 0 CH 1 CH 2
. . .
ANALOG INPUT
>
16 BIT
DIGITAL INPUT
REGISTER
D/I 0
DI 1 DO 15 D/O 0 DO 1 DI 15
DMA SELECT
#1 OR #3
TRIG
LOGIC
PACER
TRIG
SOFTWARE
TRIG
EXTERNAL
TRIG
CH 15
D/A 1 OUT
GND
REF 1 IN D/A 0 OUT
GND
REF 0 IN
4 MHz
OSC.
FR/2
2MHz
OUT 0
16 BIT
COUNTER #0
16 BIT
COUNTER #1
16 BIT
COUNTER #2
TO PACER TRIG
16 BIT
DIGITAL INPUT
REGISTER
12-Bit
Code Latch
16 channel
Single-ended
Analog
Multiplexer
AMP
DC/DC
CONVERTER
+15
-15
+5V
MUX SCAN
CONTROL
12-Bit
Code Latch
D/A #1 12 BIT
MULITIPLYING D/A
DATA
BUFFER INTERRUPT
IRQ SELECT
CONTROL
LOGIC
DACK
I/O PORT DECODER
INTERNAL BUSGAIN
SELECT
D/A #0 12 BIT
MULITIPLYING D/A
16 Bit
A/D Converter
(ADS7805)
INPUT
BUFFER
> >
< <
EXT.CLK<
PC/AT BUS
EOC
DRQ
. . .
. . .
Figure 1.1 ACL -8216 BLOCK DIAGRAM

2
•
Introduction
The ACL-8216 series is designed to combine all the data acquisition
functions, such as A/D, D/A, DIO, and timer/counter in a single board,
The high-end specifications of the card makes it ideal for wide range
of applications requiring high resolution 16-bit data acquisition at
low cost. The Figure 1.1 shows the block diagram of the ACL-8216.
The ACL-8216 Series features 16 single-ended inputs or 8
differential inputsat up to 100 Khz, 2 channels multiplying 12-bit
double-buffered analog output, 16 digital inputs and 16 digital
outputs, and one timer/counter channel.
1.1 Features
The ACL-8216 High Resolution Multi-function Data Acquisition Card
provides the following advanced features:
•AT-Bus
•16-bit hgih resolution analog input
•16 single-ended or 8 differential analog input channels
•Bipolar input signals
•Programmable gain of x1, x2, x4, x8
•On-chip sample & hold
•Two 12-bit monolithic multiplying analog output channels
•16 digital output channels
•16 digital input channels
•3 independent programmable 16-bit down counters
•Programmable sampling rate of up to 100KHz
•Three A/D trigger modes:software trigger, programmable pacer
trigger, and external pulse trigger.
•AT interrupt IRQ capability:9 IRQ levels (IRQ3~IRQ15) are jumper
selectable.
•Integral DC-to-DC converter for stable analog power source
•37-pin D-type connector
•Compact size:half-size PCB
1.2 Specifications
♦
Analog Input (A/D)
•Converter:ADS7805 or equivalent, successive approximation type
•Resolution: 16-bit

Introduction
•
3
•Number of channels: 16 single-ended or 8 differential
•Input Range: (programmable)
Bipolar : ±10V, ±5V, ±2.5V,±1.25V
•Conversion Time: 8µsec
•Sampling Rate:
100KHz maximum for single channe
20KHz maximum for multi-channels multiplexing
•Overvoltage protection: Continuous±35V maximum
•Differential Linearity Error: ±2 LSB
•Accuracy: 0.003%, ±1 LSB
•Input Impedance: 10 MΩ/ 5pF
•AD conversion trigger soruces: Software, Pacer, and External
•Data Transfer: Pooling, Interrupt, DMA
♦
Analog Output (D/A)
•Converter:DAC7541 or equivalent, monolithic multiplying
•Resolution: 12-bit
•Number of channels: 2 double-buffered analog outputs
•Output Range:
Internal reference: (unipolar) 0~5V or 0~10V
External reference: (unipolar) max. +10V or -10V
•Settling Time: 30µsec
•Linearity: ±1/2 bit LSB
•Output driving capability: ±5mA max.
♦
Digital I/O (DIO)
•Channel: 16 TTL compatible inputs and outputs
•Input Voltage:
Low: Max. 0.8V
High: Min. +2.0V
•Input Load:
Low: +0.5V @ -0.2mA max.
High: +2.7V @+20uA max.
•Output Voltage:
Low: Max. 0.5V
High: Min. +2.7V
•Driving Capacity:
Low: Max. +0.5V at 8.0mA ( Sink)
High: Min. 2.7V at 0.4mA( Source)
♦
Programmable Counter
•Device: 8254