ADLINK Technology NuDAQ ACL-8216 Manuale utente

NuDAQ



ACL-8216

16-bit High Resolution

Data Acquisition Card

User’s Guide

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

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

•

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

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

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

•

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

•

•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

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