HP Hewlett Packard Network Card 9112 Series User Manual

NuDAQ / NuIPC

9112 Series

Multi-function DAS Cards

for PCI / 3U CompactPCI

User’ s Manual

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CONTENTS

Chapter 1 Introduction...........................................1

1.1 Features............................................................................... 1

1.2 Applications......................................................................... 2

1.3 Specifications...................................................................... 2

1.4 Software Supporting............................................................ 4

1.4.1

Programming Library ........................................................................... 4

1.4.2

1.4.3

1.4.4

1.4.5

1.4.6

1.4.7

1.4.8

1.4.9

PCIS-LVIEW: LabVIEW ^®Driver.......................................................... 4

PCIS-VEE: HP-VEE Driver................................................................... 5

DAQBench^TM: ActiveX Controls ........................................................ 5

DASYLab^TMPRO.................................................................................... 5

PCIS-DDE: DDE Server and InTouch^TM........................................... 5

PCIS-ISG: ISaGRAF^TMdriver............................................................... 5

PCIS-ICL: InControl^TMDriver.............................................................. 5

PCIS-OPC: OPC Server........................................................................ 5

Chapter 2 Installation.............................................6

2.1 What You Have .................................................................... 6

2.2 Unpacking............................................................................ 7

2.3 Device Installation for Windows Systems............................ 7

2.4 PCB Layout.......................................................................... 8

2.5 Jumper Settings .................................................................10

2.6 Analog Input Channel Configuration ..................................10

2.7 Clock Source Setting..........................................................11

2.8 D/A Reference Voltage Setting............................................11

2.9 Connectors Pin Assignments.............................................13

2.9.1

2.9.2

Pin Assignments of PCI-9112...........................................................13

Pin Assignments of cPCI-9112 ........................................................15

2.10 Hardware Installation Outline .............................................16

2.11 Device Installation for Windows Systems...........................16

2.12 Daughter Board Connection ...............................................17

2.12.1 Connect with ACLD-8125..................................................................17

2.12.2 Connect with ACLD-9137..................................................................17

2.12.3 Connect with ACLD-9182..................................................................17

2.12.4 Connect with ACLD-9185..................................................................18

2.12.5 Connect with ACLD-9138 and ACLD-9188....................................18

Chapter 3 Registers Format.................................19

3.1 I/O Registers Map ...............................................................19

3.2 A/D Data Registers..............................................................20

3.3 D/A Output Register............................................................21

Contents

3.4 A/D control Register ...........................................................22

3.5 A/D Status Register ............................................................25

3.6 Software Trigger Register...................................................25

3.7 Digital I/O register...............................................................26

3.8 Internal Timer/Counter Register..........................................27

3.9 High Level Programming....................................................27

3.10 Low Level Programming.....................................................27

Chapter 4 Operation Theorem.............................28

4.1 A/D Conversion...................................................................28

4.2 Analog Input Signal Connection.........................................28

4.2.1

4.2.2

4.2.3

A/D Conversion Procedure...............................................................31

A/D Trigger Modes ..............................................................................31

A/D Data Transfer Modes..................................................................32

4.3 D/A Conversion...................................................................33

4.4 Digital Input and Output......................................................34

4.5 Timer/Counter Operation ....................................................35

Chapter 5 C/C++ Library .......................................39

5.1 Libraries Installation...........................................................39

5.2 Programming Guide............................................................40

5.2.1

5.2.2

Naming Convention ............................................................................40

Data Types.............................................................................................40

5.3 _9112_Initial........................................................................41

5.4 _9112_DI .............................................................................42

5.5 _9112_DI _Channel .............................................................42

5.6 _9112_DO ...........................................................................43

5.7 _9112_DA............................................................................44

5.8 _9112_AD_Set_Channel......................................................45

5.9 _9112_AD_Set_Range.........................................................46

5.10 _9112_AD_Set_Mode ..........................................................47

5.11 _9112_AD_Set_Autoscan....................................................48

5.12 _9112_AD_Soft_Trig ...........................................................49

5.13 _9112_AD_Aquire ...............................................................50

5.14 _9112_AD_DMA_Start.........................................................51

5.15 _9112_AD_DMA_Status ......................................................53

5.16 _9112_AD_DMA_Stop.........................................................54

5.17 _9112_ContDmaStart ..........................................................55

5.18 _9112_CheckHalfReady ......................................................56

5.19 _9112_DblBufferTransfer....................................................57

5.20 _9112_GetOverrunStatus....................................................57

ii·

Contents

5.21 _9112_ContDmaStop ..........................................................58

5.22 _9112_AD_INT_Start ...........................................................59

5.23 _9112_AD_INT_Status ........................................................60

5.24 _9112_AD_INT_Stop ...........................................................61

5.25 _9112_AD_Timer.................................................................61

5.26 _9112_TIMER_Start.............................................................63

5.27 _9112_TIMER_Read............................................................63

5.28 _9112_TIMER_Stop.............................................................64

5.29 _9112_Alloc_DMA_Mem .....................................................64

5.30 _9112_Free_DMA_Mem.......................................................65

5.32 _9112_Get_Sample .............................................................65

Chapter 6 Calibration............................................67

6.1 What do you need...............................................................67

6.2 VR Assignment...................................................................68

6.3 A/D Adjustment...................................................................68

6.3.1

6.3.2

Bipolar Calibration ..............................................................................68

Unipolar Calibration............................................................................68

6.4 D/A Adjustment...................................................................69

6.4.1

6.4.2

Reference Voltage Calibration .........................................................69

D/A Channel Calibration ....................................................................69

Chapter 7 Software Utilities................................70

7.1 Software Utility ...................................................................70

7.1.1

7.1.2

7.1.3

7.1.4

Running the Utility ..............................................................................71

System Configuration ........................................................................71

Calibration .............................................................................................71

Functional Testing ..............................................................................72

7.2 PCI SCAN Utility .................................................................72

Appendix A. Demo. Programs..............................73

Product Warranty/Service ....................................75

Contents

iii

How to Use This Guide

This manual is for helping users to manipulate the PCI-9112 and cPCI-

9112. The functionality of PCI-9112 and cPCI-9112 are the same.

Therefore, the “ PCI-9112” in this manual represent both the PCI-9112 and

cPCI-9112 without specifications.

The manual describes how to modify various settings on the PCI-9112

card to meet your requirements. It is divided into seven chapters:

Chapter 1, Introduction, gives an overview of the product

features, applications, and specifications.

Chapter 2, Installation, describes how to install the PCI-9112.

The layout of PCI-9112 is shown, jumper setting for analog input

channel configuration, D/A reference voltage settings are specified.

The connectors' pin assignment and how to connect the outside

signal and devices are also described.

Chapter 3, Registers Format, describes the details of register

format and structure of the PCI-9112, 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

PCI-9112. The A/D, D/A, DIO and timer/counter functions are

introduced. Some programming concepts are also specified.

Chapter 5, C/C++ Library, describes the software utility and

library of PCI-9112, and also describes how to install and operate

the utility and library to meet your requirements and help you to

program your own software application.

Chapter 6, Calibration, describes how to calibrate the PCI-9112

for accurate measurement.

Chapter 7, Software Utility, describes the software utilities which

can help you to run the card.

Introduction

The 9112 series products are multi-function data acquisition cards.. The

9112 series includes:

PCI-9112: 12-bit 100KHz Multifunction DAS card

cPCI-9112: 12-bit 100KHz Multifunction DAS card for 3U ComptactPCI

The 9112 series DAS cards are using state-of-the-art technology to make

this card ideal for data logging and signal analysis applications in medical,

process control, etc.

1.1 Features

The PCI-9112 PCI Bus Advanced Data Acquisition Card provides the

following advanced features:

32-bit PCI-Bus

12-bit analog input resolution

On-board A/D FIFO memory

Auto-scanning channel selection

Up to 110Khz A/D sampling rates

16 single-ended or 8 differential analog input channels

Bipolar or unipolar input signals

Programmable gain of x0.5, 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

Three A/D trigger modes : software trigger, programmable pacer

trigger, and external pulse trigger.

Integral DC-to-DC converter for stable analog power source

Introduction

37-pin D-type connector for PCI-9112

100-pin SCSI-type connector for cPCI-9112

Half-size PCB

1.2 Applications

Industrial and laboratory ON/OFF control

Energy management

Annunciation

16 TTL/DTL compatible digital input channels

Security controller

Product test

Event and frequency counting

Waveform and pulse generation

BCD interface driver

1.3 Specifications

Analog Input (A/D)

Converter: ADS774 or equivalent, successive approximation type

Resolution: 12-bit

Numbers of Input Channel: 16 single-ended or 8 differential

Input Range: (Programmable)

Bipolar

: 10V, 5V, 2.5V, 1.25V, 0.625V

Unipolar

Conversion Time: 8 m sec

Throughput: 110KHz multiplexing (maximum)

Analog Input Over-voltage Protection: Continuous ± 35V max.

Accuracy:

: 0~10V, 0~5V, 0~2.5V, 0~1.25V

GAIN = 0.5, 1

GAIN = 2, 4

GAIN = 8

0.01% of FSR ±1 LSB

0.02% of FSR ±1 LSB

0.04% of FSR ±1 LSB

Input Impedance: 10 MW

Trigger Modes: Software, Timer Pacer, and External trigger

Data Transfer Modes: Bus mastering DMA, Program control,

Interrupt

FIFO Depth: 8 words for PCI-9112, 2K words for cPCI-9112 only

Analog Output (D/A)

Numbers of Output Channel: 2 double-buffered analog output

Resolution: 12-bit

Output Range:

Internal Reference: (unipolar) 0~5V or 0~10V

Introduction

External Reference: (unipolar) max. +10V or -10V

Converter: DAC7541 or equivalent, monolithic multiplying

Settling Time: 30 m sec

Linearity: ±1/2 bit LSB

Output Driving Capability: ±5mA max.

Digital I/O (DIO)

Numbers of channels: 16 TTL compatible inputs and outputs

Input Voltage:

Low: Min. 0V. Max. 0.8V

High: Min. +2.0V

Input Load:

Low: +0.5V @ -0.2mA max.

High: +2.7V @+20mA max.

Output Voltage:

Low: Min. 0V; Max. 0.4V

High: Min. +2.4V

Driving Capacity:

Low: Max. +0.5V at 8.0mA (Sink)

High: Min. +2.7V at 0.4mA (Source)

Programmable Counter

Timer / Counter Device: 8254

A/D pacer timer: 32-bit timer (two 16-bit counter cascaded

together) with a 2MHz time base

Pacer Frequency Range: 0.00046 Hz ~ 100K Hz

Counter: One 16-bit counter with a 2MHz time base

General Specifications

Connector : 37-pin D-type connector

Operating Temperature: 0° C ~ 60° C

Storage Temperature: -20° C ~ 80° C

Humidity: 5 ~ 95%, non-condensing

Power Consumption:

PCI-9112:

+5 V @ 460 mA typical

+12V @ 110 mA typical

cPCI-9112:

+5 V @ 600 mA typical

+12V @ 20 mA typical

PCB Dimension:

PCI-9112: Compact size only 102mm(H) X 173mm(L)

cPCI-9112: Standard CompactPCI form factor

Introduction

1.4 Software Supporting

ADLink provides versatile software drivers and packages for users’

different approach to built-up a system.

We not only provide

programming library such as DLL for many Windows systems, but also

provide drivers for many software package such as LabVIEW^®, HP

VEE^TM, DASYLab^TM, InTouch^TM, InControl^TM, ISaGRAF^TM, and so on.

All the software options are included in the ADLink CD. The non-free

software drivers are protected with serial licensed code. Without the

software serial number, you can still install them and run the demo

version for two hours for demonstration purpose. Please contact with

your dealer to purchase the formal license serial code.

1.4.1 Programming Library

For customers who are writing their own programs, we provide function

libraries for many different operating systems, including:

DOS Library: Borland C/C++ and Microsoft C++, the functions

descriptions are included in this user’ s guide.

Windows 95 DLL: For VB, VC++, Delphi, BC5, the functions

descriptions are included in this user’ s guide.

PCIS-DASK: Include device drivers and DLL for Windows 98,

Windows NT and Windows 2000. DLL is binary compatible

across Windows 98, Windows NT and Windows 2000. That

means all applications developed with PCIS-DASK are

compatible across

Windows 98, Windows NT and Windows

2000. The developing environment can be VB, VC++, Delphi,

BC5, or any Windows programming language that allows calls to

a DLL. The user’ s guide and function reference manual of PCIS-

DASK are in the CD. Please refer the PDF manual files under

\\Manual_PDF\Software\PCIS-DASK

The above software drivers are shipped with the board. Please refer to

the “ Software Installation Guide” to install these drivers.

1.4.2 PCIS-LVIEW: LabVIEW^®Driver

PCIS-LVIEW contains the VIs, which are used to interface with NI’ s

LabVIEW^®software package. The PCIS-LVIEW supports Windows

95/98/NT/2000. The LabVIEW^®drivers are free shipped with the board.

You can install and use them without license. For detail information about

PCIS-LVIEW, please refer to the user’ s guide in the CD.

(\\Manual_PDF\Software\PCIS-LVIEW)

Introduction

1.4.3 PCIS-VEE: HP-VEE Driver

The PCIS-VEE includes the user objects, which are used to interface with

HP VEE software package. PCIS-VEE supports Windows 95/98/NT. The

HP-VEE drivers are free shipped with the board. You can install and use

them without license. For detail information about PCIS-VEE, please

refer to the user’ s guide in the CD.

(\\Manual_PDF\Software\PCIS-VEE)

1.4.4 DAQBench^TM: ActiveX Controls

We suggest the customers who are familiar with ActiveX controls and

VB/VC++ programming use the DAQBench^TMActiveX Control

components library for developing applications. The DAQBench^TMis

designed under Windows NT/98. For more detailed information about

DAQBench, please refer to the user’ s guide in the CD.

(\\Manual_PDF\Software\DAQBench\DAQBench Manual.PDF)

1.4.5 DASYLab^TMPRO

DASYLab is an easy-to-use software package, which provides easy-setup

instrument functions such as FFT analysis. Please contact us to get

DASYLab PRO, which include DASYLab and ADLink hardware drivers.

1.4.6 PCIS-DDE: DDE Server and InTouch^TM

DDE stands for Dynamic Data Exchange specifications. The PCIS-DDE

includes the PCI cards’ DDE server. The PCIS-DDE server is included in

the ADLINK CD. It needs license. The DDE server can be used

conjunction with any DDE client under Windows NT.

1.4.7 PCIS-ISG: ISaGRAF^TMdriver

The ISaGRAF WorkBench is an IEC1131-3 SoftPLC control program

development environment. The PCIS-ISG includes ADLink products’

target drivers for ISaGRAF under Windows NT environment. The PCIS-

ISG is included in the ADLINK CD. It needs license.

1.4.8 PCIS-ICL: InControl^TMDriver

PCIS-ICL is the InControl driver which support the Windows NT. The

PCIS-ICL is included in the ADLINK CD. It needs license.

1.4.9 PCIS-OPC: OPC Server

PCIS-OPC is an OPC Server, which can link with the OPC clients. There

are many software packages on the market can provide the OPC clients

now. The PCIS-OPC supports the Windows NT. It needs license.

Introduction

Installation

This chapter describes how to install the 9112 series cards. Please follow

the follow steps to install.

Check what you have (section 2.1)

Unpacking (section 2.2)

Check the PCB and jumper location(section 2.3)

Setup jumpers (section 2.4~2.8)

Install the hardware and setup and jumpers (section 2.10)

Install the software drivers and run utility to test (section 2.11)

Cabling with external devices (section 2.9 and 2.12)

2.1 What You Have

In addition to this User's Guide, the package includes the following items:

PCI-9112 or cPCI-9112 Enhanced Multi-function DAS Card

ADLINK Software CD

Software Installation Guide

If any of these items is missing or damaged, contact the dealer from

whom you purchased the product. Save the shipping materials and carton

in case you want to ship or store the product in the future.

Installation

2.2 Unpacking

The card contains sensitive electronic components that can be easily

damaged by static electricity. Failure to perform the procedure outlined

below may damage the on board devices.

The board is packaged in an anti-static bag to avoid damage to the

sensitive IC on the board. After opening the card module carton, extract

the bag and place it only on a grounded anti-static surface to establish

grounding. The card should be handled on a grounded anti-static mat.

The operator should be wearing an anti-static wristband, grounded at the

same point as the anti-static mat.

Inspect the card for obvious damage. Shipping and handling may cause

damage to your module. Be sure there are no shipping and handing

damages on the module before processing.

Note : DO NOT ATTEMPT TO INSTALL A DAMAGED BOARD IN THE

COMPUTER.

You are now ready to install your card.

2.3 Device Installation for Windows Systems

Once Windows 95/98/2000 has started, the Plug and Play function of

Windows system will find the new NuDAQ/NuIPC cards. If this is the first

time to install NuDAQ/NuIPC cards in your Windows system, you will be

informed to input the device information source. Please refer to the

“ Software Installation Guide” for the steps of installing the device.

Installation

2.4 PCB Layout

PCI-9112 Layout

A D S - 7 7 4

Figure 2.1 PCB Layout of the PCI-9112

Installation

cPCI-9112 Layout

Figure 2.2 PCB Layout of the PCI-9112

Installation

2.5 Jumper Settings

You can set the following configuration by jumpers: the analog input

signal mode, counter’ s clock source, and analog output range. The card's

jumpers and switches are preset at the factory. You can change the

jumper settings for your own applications.

For system reliability and safety, the design of PCI-9112 still keeps some

board configurations to be set through jumpers. These setting are listed

as below.

Jumpers

(PCI-

9112)

Jumpers

(cPCI-

9112)

Configurat

ion

Attributes

Single-

ended or

Differential

Analog

Input

Analog

Inputs

JP1 and

JP5

JP1 and

JP4

Internal

Clock or

External

Clock

Source

JP2

JP3

JP2

JP3

D/A

Reference

Voltage

-10V or -5V

Internal

Reference

External

Reference

D/A

Reference

Source

JP4

JP5

Table 2.1

Jumpers Listing Table

2.6 Analog Input Channel Configuration

The PCI-9112 offers 16 single-ended or 8 differential analog input

channels. The jumper JP1 and JP5 control the analog input configurations.

The settings of JP1 and JP5 are specified as following:

Installation

PCI-9112

SINGLE

cPCI-9112

SINGLE

DIFF

Single-ended

JP5

JP1

JP4

JP1

(default setting)

DIFF

SINGLE

Differential

Input

JP5

JP1

DIFF

Figure 2.2

Analog Input Mode Setting

2.7 Clock Source Setting

The programmable interval timer 8254 is used in the PCI-9112. It

provides 3 independent 16-bit programmable down counters. The input of

counter 2 is connected to a precision 2MHz oscillator for internal pacer.

The input of counter 1 is cascaded from the output of counter 2. The

channel 0 is free for user's applications. There are two selections for the

clock source of channel 0 : the internal 2MHz clock or the external clock

signal from connector CN3 pin 35. The setting of clock is shown as Figure

2.3.

Internal Clock

Source: 2MHz

INTCLK

JP2

(default setting)

EXTCLK

INTCLK

External Clock

Source

JP2

EXTCLK

Figure 2.3 Timer's Clock Source Setting

2.8 D/A Reference Voltage Setting

The D/A converter's reference voltage source can be supplied both

internally and external. The external reference voltage comes from

connector CN3 pin 31 (ExtRef1) and pin12 (ExtRef2), see section 3.1.

The reference source of D/A channel 1 and channel 2 are selected by

JP4, respectively. Their possible settings are shown as below:

Installation

JP4(PCI-9112) JP5(cPCI-9112)

D/A CH1 is External

D/A CH2 is External

INTREF

ExtRef1

INTREF

ExtRef2

INTREF

ExtRef1

INTREF

ExtRef2

D/A CH1 is External

D/A CH2 is Internal

D/A CH1 is Internal

D/A CH2 is External

INTREF

ExtRef1

INTREF

ExtRef2

D/A CH1 is Internal

D/A CH2 is Internal

(default setting)

INTREF

ExtRef1

INTREF

ExtRef2

Figure 2.4 Analog Output Voltage Setting

The internal A/D reference voltage can be set to –5V or –10V by JP3.

The possible configurations are specified as Figure 2.5. Note that the

internal reference voltage is used only when the JP4 is set to internal

reference only.

-10V

Reference Voltage is

-5V (default setting)

J P 3

-5V

-10V

Reference Voltage is

-10V

J P 3

-5V

Figure 2.5 Internal Reference Voltage Setting

Note : If the -10V D/A reference voltage is selected, the D/A output

range is 0V~10V. On the other hand, if the -5V is selected, the

D/A output range is 0V~5V.

Installation

2.9 Connectors Pin Assignments

2.9.1 Pin Assignments of PCI-9112

The PCI-9112 comes equipped with two 20-pin insulation displacement

connectors - CN1 and CN2 and one 37-pin D-type connector - CN3. The

CN1 and CN2 are located on board and CN3 located at the rear plate.

CN1 is for digital signal input, CN2 for digital signal output, CN3 for

analog input, analog output and timer/counter's signals. The pin

assignments for each connector are illustrated in the Figure 2.9.1~ Figure

2.9.3.

CN 3: Analog Input / Output & Counter/Timer

(for single-ended connection)

(for differential connection)

CN3

AI0

AI1

AI2

AI8

AI9

AI10

AI11

AI3

AI4

AI12

AI13

AI14

AI5

AI6

AI7

AI15

A.GND

V.REF

AO1

ExtRef2

ExtRef1

AO2

+12V

A.GND

D.GND

GATE0

GATE

COUT1

N/C

COUT0

ExtTrg

N/C

+5V

ExtCLK

Figure 2.9.1 Pin Assignments of CN3

Legend :

AIn

: Analog Input Channel n ( single-ended)

: Analog High Input Channel n ( differential)

: Analog Low Input Channel n ( differential)

AIHn

AILn

ExtRef n : External Reference Voltage for D/A CH n

AOn : Analog Output Channel n

ExtCLK : External Clock Input

ExtTrig : External Trigger Signal

CLK

: Clock input for 8254

Installation

GATE

: Gate input for 8254

COUT n : Signal output of Counter n

V.ERF : Voltage Reference

A.GND : Analog Ground

GND

CN 1: Digital Signal Input (DI 0 - 15)

CN1

: Ground

DI 1

DI 3

DI 5

DI 7

DI 9

DI 11

DI 13

DI 15

GND

+12V

DI 0

DI 2

DI 4

DI 6

DI 8

DI 10

DI 12

DI 14

GND

+5V

9 10

11 12

13 14

15 16

17 18

19 20

Figure 2.9.2 Pin Assignment of CN1

CN 2: Digital Signal Output (DO 0 - 15)

CN2

DO 1

DO 3

DO 5

DO 7

DO 9

DO 11

DO 13

DO 15

GND

DO 0

DO 2

DO 4

DO 6

DO 8

DO 10

DO 12

DO 14

GND

9 10

11 12

13 14

15 16

17 18

19 20

+12V

+5V

Figure 2.9.3 Pin Assignment of CN2

Legend :

DO n

: Digital output signal channel n

: Digital input signal channel n

: Digital ground

DI n

GND

Installation

2.9.2 Pin Assignments of cPCI-9112

(1) DOUT_0 (26) DIN_9

GND (76) GND

(2) DOUT_1 (27) DIN_10

GND (77) GND

(3) DOUT_2 (28) DIN_11

GND (78) GND

(4) DOUT_3 (29) DIN_12

GND (79) GND

(5) DOUT_4 (30) DIN_13

GND (80) GND

(6) DOUT_5 (31) DIN_14

GND (81) 5Vout

(7) DOUT_6 (32) DIN_15

GND (82) 5Vout

(8) DOUT_7 (33) EXTCLK

GND (83) GND

(9) DOUT_8 (34) EXTTRG

GND (84) GND

(10) DOUT_9 (35) COUT0

(51)

(52)

(53)

(54)

(55)

(56)

(57)

(58)

(59)

(60)

(1)

(2)

(3)

(51)

(52)

(53)

GND

(11) DOUT_10

(61) GND(86) GATE

(12) DOUT_11 (37)

(62) GND(87) AGND

(85) COUT1

(36)

(48)

(49)

(50)

(98)

GATE0

12VOUT

(99)

(100)

Legend :

AINm

: Analog Input Channel m ( single-ended)

AINHm : Analog High Input Channel m ( differential)

AINLm : Analog Low Input Channel m ( differential)

ExtTrig : External AD Trigger Signal

DIN_x

: Digital Input Channel x

DOUT_x : Digital Output Channel x

ExtCLK : External Clock Input for 8254 Counter #0

COUT n : Signal output of Counter n

GATE0 : Gate input for 8254 Timer #0

GATE

ExtRef n : External Reference Voltage for D/A CH n

DAn : Analog Output Channel n (n=1,2)

REFout : Internal Voltage Reference Output

5Vout : Internal 5V Output

: Gate input for 8254 Timer #1,2

12Vout : Internal 12V Output

A.GND : Analog Ground

GND

: Ground

Installation

2.10 Hardware Installation Outline

PCI configuration

The PCI cards (or CompactPCI cards) are equipped with plug and play

PCI controller, it can request base addresses and interrupt according to

PCI standard. The system BIOS will install the system resource based on

the PCI cards’ configuration registers and system parameters (which are

set by system BIOS). Interrupt assignment and memory usage (I/O port

locations) of the PCI cards can be assigned by system BIOS only. These

system resource assignments are done on a board-by-board basis. It is

not suggested to assign the system resource by any other methods.

PCI slot selection

The PCI card can be inserted to any PCI slot without any configuration for

system resource. Please note that the PCI system board and slot must

provide bus-mastering capability to operate this board well.

Installation Procedures

1.Turn off your computer.

2.Turn off all accessories (printer, modem, monitor, etc.) connected to

your computer.

3. Remove the cover from your computer.

4. Setup jumpers on the PCI or CompactPCI card.

5. Select a 32-bit PCI slot. PCI slot are short than ISA or EISA slots, and

are usually white or ivory.

6.Before handling the PCI cards, discharge any static buildup on your

body by touching the metal case of the computer. Hold the edge and do

not touch the components.

7.Position the board into the PCI slot you selected.

8.Secure the card in place at the rear panel of the system.

2.11 Device Installation for Windows Systems

Once Windows 95/98/2000 has started, the Plug and Play function of

Windows system will find the new NuDAQ/NuIPC cards. If this is the first

time to install NuDAQ/NuIPC cards in your Windows system, you will be

informed to input the device information source. Please refer to the

“ Software Installation Guide” for the steps of installing the device.

Installation

2.12 Daughter Board Connection

The PCI-9112 can be connected with five different daughter boards,

ACLD-8125, 9137, 9138, 9182, 9185, and 9188. The functionality and

connections are specified in the following sections.

The cPCI-9112 is equipped with 100 pin SCSI-II type connector, the DIN-

100S is a general purpose terminal board for connecting the external

devices.

2.12.1 Connect with ACLD-8125

The ACLD-8125 has a 37-pin D-sub connector, which can connect with

PCI-9112 through 37-pin assemble cable. The most outstanding feature

of this daughter board is a CJC (cold junction compensation) circuit on

board. You can directly connect the thermocouple on the ACL-8125 board.

The CJC only suitable for High Gain version board.

2.12.2 Connect with ACLD-9137

The ACLD-9137 is a direct connector for the card which is equipped with

37-pin D-sub connector. This board provides a simple way for connection.

It is very suitable for the simple applications that do not need complex

signal condition before the A/D conversion is performed.

2.12.3 Connect with ACLD-9182

The ACLD-9182 is a 16 channel isolated digital input board. This board is

connected with CN1 of PCI-9112 via 20-pin flat cable. The advantage of

board is a 500Vdc isolation voltage is provided, and it can protect your PC

CN2

ACLD-

CN1

ACLD-

PCI

system from damage when an abnormal input signal is occurred.

Installation

2.12.4 Connect with ACLD-9185

The ACLD-9185 is a 16 channel SPDT relay output board. This board is

connected with CN2 of PCI-9112 via 20-pin flat cable. by using this board,

you can control outside device through the digital output signals.

2.12.5 Connect with ACLD-9138 and ACLD-9188

ACLD-9138 and ACLD-9188 are general purpose terminal boards for all

the card which comes equipped with 37-pin D-sub connector. The ACLD-

9138 has a LED indicator to show the power ON/OFF of your computer

system.

CN1

CN3

CN2

ACLD-9188

PCI-9112

Installation

Registers Format

The detailed descriptions of the register format and structure of the PCI-

9112 are specified in this chapter. This information is quite useful for the

programmer who wish to handle the card by low-level program.

In addition, the low level programming syntax is introduced. This

information can help the beginners to operate the PCI-9112 in the

shortest learning time.

3.1 I/O Registers Map

The PCI-9112 functions as 32-bit PCI target device to any master on the

PCI bus. It supports burst transfer to memory space by using 32-bit data.

All data read and write will base on 32-bit data.There are three types of

registers on the PCI-6308: PCI Configuration Registers (PCR), Local

Configuration Registers (LCR) and 9112 registers.

The PCR, which compliant to the PCI-bus specifications, is initialized and

controlled by the plug & play (PnP) PCI BIOS. User‘ s can study the PCI

BIOS specification to understand the operation of the PCR. Please

contact with PCISIG to acquire the specifications of the PCI interface.

The LCR is specified by the PCI bus controller AMCC-5933, which is

provided by AMCC Corp. (www. amcc .com) It is not necessary for users

to understand the details of the LCR if you use the software library.

The Table 3.1 shows the 9112 I/O address of each register with respect

to the base address. The function of each register also be shown.

Registers Format

I/O Address

Read

Write

Base + 0

Base + 4

Base + 8

Base + C

Counter 0

Counter 1

Counter 2

-------------

Counter 0

Counter 1

Counter 2

8254

Control

Counter

Base + 10

Base + 14

Base + 18

A/D Data Reg.

-------------

CH1 D/A Data

Reg.

CH2 D/A Data

Reg.

A/D

Status

A/D Control Reg.

Reg.

Base + 1C

Base + 20

Digital IN Reg.

-------------

Digital OUT Reg.

Software Trigger

Table 3.1 I/O Address

3.2 A/D Data Registers

The PCI-9112 provides 16 single-ended or 8 differential A/D input

channels, the digital data will store in the A/D data registers. The 12 bits

A/D data is put into 32 bits registers.

Address

Attribute

: BASE + 10

: read only

Data Format:

Bit

SE+

AD11 .. AD0

Analog to digital data. AD11 is the Most

Significant Bit (MSB). AD0 is the Least Significant Bit (LSB).

CH3 ~ CH0 : A/D channel number from which the data is derived.

---

Don‘ t care

Registers Format

3.3 D/A Output Register

The D/A converter will convert the D/A output register data to the analog

signal. The register data of the address Base+10 is used for D/A channel

1, Base+14 is used for D/A channel 2.

Address

Attribute

: BASE + 10

: write only

Data Format: (for D/A Channel 1)

Bit

Bas

Address

Attribute

: BASE + 14

: write only

Data Format: (for D/A Channel 2)

Bit

Base

+ 14

Base

+ 15

Base

+ 16

Base

+ 17

DA0 is the LSB and DA11 is the MSB of the 12 bits data.

--- : don't care

Registers Format

3.4 A/D control Register

This register is to control the A/D channels to be converted. It is a write

only register. When the channel number is written to the register, the

multiplexer switches to the new channel and wait for conversion.

Address

Attribute

: BASE + 18

: write only

Data Format:

Bit

Base

+ 18

Base

+ 19

MUX

Auto-

Scan

GAIN

A/D Mode

Base

+ 1A

---

Base

+ 1B

A/D Mode:

Bit 3

Bit 2

Bit 1

Bit 0

EITS

TSTS

INTX

DMA

EITS : External / Internal Trigger Source

1 : External Trigger Source

0: Internal Trigger Source

TPST : Timer Pacer/ Software Trigger

1 : Timer Pacer Trigger

0 : Software Trigger

(It is only available when the Internal Trigger Source is selected)

INTX: Interrupt Transfer Mode

1 : Enable Interrupt Transfer

0 : Disable Interrupt Transfer

DMAX : DMA Transfer Mode (bus mastering)

1 : Enable DMA Data Transfer

0 : Disable DMA Data Transfer

Registers Format

Only below modes are legal to be applied on the PCI-9112 card :

Bit 3

EIT

Bit

Mode Description

Software Trigger & Polling

Timer Pacer Trigger

DMA

Timer Pacer Trigger & INT

External Trigger & Polling

External Trigger & DMA

External Trigger & INT

Auto-Scan: ( Bit 4)

0: Auto Scan is disabled

Only channel [M3 M2 M1 M0] is converted only

1: The converted channel will be selected by the sequence [ M3 M2

M1 M0] to 0, for example, the MUX register is [0110] and the auto-scan

bit is enabled, then the channel scan sequence is :

CH6, CH5, CH4, CH3, CH2, CH1, CH0, CH6, CH5, ...

MUX Register: ( Bit8 ~ Bit5)

The converted A/D channel is controlled by the register MUX, the format

of MUX is show as table below.

Bit

Channel No.

...

CH0

CH1

CH2

...

CH14

CH15

Note : Signle-ended mode : channel is selected from CH0 ~ CH15.

Differential mode : channel is selected from CH0 ~ CH5.

· Gain: ( Bit12 ~ Bit9)

Registers Format

In PCI-9112, the analog input ranges are software programmable and it is

controlled by the gain value. The gain value and its corresponding input

range is shown as below.

Bipola

(

Unipol

Input Range

)

Bipola

Unipol

±10V

±5V

±2.5V

±1.25V

±0.625V

0V ~ 10V

0V ~ 5V

0V ~ 2.5V

0V ~ 1.25V

Registers Format

3.5 A/D Status Register

Address

Attribute

: BASE + 18

: read only

Data Format:

Bit

Base

+ 18

Base

+ 19

---

Base

+ 1A

Base

+ 1B

DOVR: A/D Over-Run ( it is only when A/D is transferred by DMA bus

master mode. )

1 : A/D converted Data is over run

0 : A/D converted Data is in normal condition

DRDY :A/D Data is Ready

1 : A/D conversion is completed

0 : A/D conversion is not completed

3.6 Software Trigger Register

If you want to generate a trigger pulse to the PCI-9112 for A/D conversion,

you just write any data to this register, and then the A/D converter will be

triggered.

Address

Attribute

: BASE + 20

: write only

Data Format:

Bit

BAS

E+2

Registers Format

3.7 Digital I/O register

There are 16 digital input channels and 16 digital output channels

provided by the PCI-9112. The address Base + 1C is used to access

digital inputs and control digital outputs.

Address

Attribute

: BASE + 1C

: read only

Data Format:

Bit

Bas

e +

Bas

e +

Bas

e +

Bas

e +

Address

Attribute

Data Format:

Bit

: BASE + 1C

: write only

Bas

e +

Bas

e +

Bas

e +

Bas

e +

Registers Format

3.8 Internal Timer/Counter Register

Two counters of 8254 are used for periodically triggering the A/D

conversion, the left one is left free for user applications. The 8254

occupies 4 I/O address locations in the PCI-9112 as shown blow. Users

can refer to NEC's or Intel's data sheet for a full description of the 8254

features.

Address

: BASE + 0 ~ BASE + F

Attribute : read / write

Data Format :

Base + 0

Counter 0 Register ( R/W)

Counter 1 Register ( R/W)

Counter 2 Register ( R/W)

8254 CONTROL BYTE (W)

Base + 4

Base + 8

Base + C

3.9 High Level Programming

To operate the PCI-9112, you should by-pass the detailed register

structures and control your PCI-9112 card directly via the high-level

Application-Programming-Interface (API).

The software Libraries,

including DOS Library for Borland C++ and DLL driver for Windows -95/98,

are included in the CD. For more detailed information, please refer to

Chapter 5 “ C/C++ Software Library” .

3.10 Low Level Programming

To operate the PCI-9112, users do not need to understand how to write a

hardware dependent low-level program. Because it is more complex to

control the PCI controller and the information is not described in this

manual. We do not recommend users to program its applications based

on low-level programming. The PCI controller used in the PCI-9112 is

AMCC-S5933. For more s5933 PCI controller information, please visit

the web site: www.amcc.com.

Registers Format

Operation Theorem

The operation theorem of the functions on PCI-9112 card is described in

this chapter. The functions include the A/D conversion, D/A conversion,

Digital I/O and counter / timer. The operation theorem can help you to

understand how to manipulate or to program the PCI-9112.

4.1 A/D Conversion

Before programming the PCI-9112 to perform the A/D conversion, you

should understand the following issues:

A/D front-end signal input connection

A/D conversion procedure

A/D trigger mode

A/D data transfer mode

Signal Connection

4.2 Analog Input Signal Connection

The PCI-9112 provides 16 single-ended or 8 differential analog input

channels. The analog signal can be converted to digital value by the A/D

converter. To avoid ground loops and get more accuracy measurement

of A/D conversion, it is quite important to understand the signal source

type and how to choose the analog input modes : signal-ended and

differential. The PCI-9112 offers jumpers to select 16 single-ended or 8

different analog inputs.

Operation Theorem

Single-ended Mode

The single-ended mode has only one input relative to ground and it

suitable for connecting with the floating signal source. The floating source

means it does not have any connection to ground. Figure 3.4 shows the

single-ended connection. Note that when more than two floating sources

are connected, the sources must be with common ground.

Figure 4.2.1 Floating source and single-ended

Differential input mode

The differential input mode provides two inputs that respond to the

difference signal between them. If the signal source has one side

connected to local ground, the differential mode can be used for reducing

ground loop. Figure 3.5 shows the connection of the differential input

mode. However, even if the signal source is local grounded, the single-

ended still can be used when the Vcm (Common Mode Voltage) is very

small and the effect of ground loop can be negated.

n = 0, ..., 8

0, …

To A/D Converter

AIHn

Ground

Signal

Source

AILn

GND

Vcm = VG1 - VG2

VG1

VG2

Figure 4.2.2 Ground source and differential input

Operation Theorem

A differential mode must be used when the signal source is differential. A

differential source means the ends of the signal are not grounded. To

avoid the danger of high voltage between the local ground of signal and

the ground of the PC system, a shorted ground path must be connected.

Figure 3.6 shows the connection of differential source.

n =

n = 0, ..., 8

To A/D Converter

AIHn

Differential

Signal

Source

AILn

GND

Vcm = VG1 - VG2

VG1

VG2

Figure 4.2.3 Differential source and differential input

If your signal source is both floating and local ground, you should use the

differential mode, and the floating signal source should be connected as

the Figure 3.7 .

n = 0, ..., 8

High

AIHn

Floating

Signal

To A/D Converter

Source

Low

AILn

GND

Figure 4.2.4 Floating source and differential input

Operation Theorem

4.2.1 A/D Conversion Procedure

The A/D conversion is starting by a trigger source, then the A/D converter

will start to convert the signal to a digital value. The PCI-9112 provides

three trigger modes, see section 5.1.2.

While A/D conversion, the DRDY bit in A/D status register is cleared to

indicate the data is not ready. After conversion being completed, the

DRDY bit will return to high(1) level. It means users can read the

converted data from the A/D data registers. Please refer section 4.5 for

the A/D status register format.

The A/D data should be transferred into PC's memory for further using.

The PCI-9112 provides three data transfer modes that allow users to

optimize the DAS system. Refer to section 5.1.3 for data transfer modes.

4.2.2 A/D Trigger Modes

In the PCI-9112, A/D conversion can be triggered by the Internal or

External trigger source. The EITS bit of A/D control register is used to

select the internal or external trigger, please refer to section 4.5 for details.

Whenever the external source is set, the internal sources are disable.

If the internal trigger is selected, there are two internal sources, the

software trigger and the timer pacer trigger can be used. The A/D

operation mode is controlled by A/D mode bits (EITS, TSTS) of A/D

control register (BASE+18). Total three trigger sources are possible in

the PCI-9112. The different trigger conditions are specified as follows:

Software trigger

The trigger source is software controllable in this mode. That is, the A/D

conversion is starting when any value is written into the software trigger

conversion. Under this mode, the timing of the A/D conversion is fully

controlled under software. However, it is difficult to control the fixed A/D

conversion rate except another timer interrupt service routine is used to

generate a fixed rate trigger.

Timer Pacer Trigger

An on-board timer / counter chip 8254 is used to provide a trigger source

for A/D conversion at a fixed rate. Two counters of the 8254 chip are

cascaded together to generate trigger pulse with precise period. Please

refer to section 5.4 for 8254 architecture. This mode is ideal for high

speed A/D conversion. It can be combined with the DMA bus mastering or

the interrupt data transfer. It's recommend to use this mode if your

applications need a fixed and precise A/D sampling rate.

Operation Theorem

External Trigger

Through the pin-17 of CN3 (ExtTrig), the A/D conversion also can be

performed when a rising edge of external signal is occurred. The

conversion rate of this mode is more flexible than the previous two modes,

because the users can handle the external signal by outside device. The

external trigger can combine with the DMA transfer, interrupt data transfer,

or even program polling data transfer. Generally, the interrupt data

transfer is often used when external trigger mode is used.

4.2.3 A/D Data Transfer Modes

On the PCI-9112, three A/D data transfer modes can be used when the

conversion is completed. The data transfer mode is controlled by the A/D

mode control bits (INTX, DMAX) of the A/D control register (BASE+18).

The different transfer modes are specified as follows:

Software Data Transfer (DRDY)

Usually, this mode is used with software A/D trigger mode. After the A/D

conversion is triggered by software, the software should poll the DRDY bit

on the A/D Status register until it becomes to high level. Whenever the

low byte of A/D data is read, the DRDY bit will be cleared to indicate the

data is read out.

It is possible to read A/D converted data without polling. The A/D

conversion time will not excess 8ms on PCI-9112 card. Hence, after

software trigger, the software can wait for at least 8ms then read the A/D

Interrupt Transfer (INTX)

The PCI-9112 provides hardware interrupt capability. Under this mode, an

interrupt signal is generated when the A/D conversion is ended and the

data is ready to be read. It is useful to combine the interrupt transfer with

the timer pacer trigger mode. Under this mode, the data transfer is

essentially asynchronous with the control software.

When the interrupt transfer is used, the hardware interrupt will be inserted

and its corresponding ISR (Interrupt Service Routine) will be invoked and

executed after A/D conversion is completed. The converted data is

transferred by the ISR program. In PCI design, the IRQ level is assigned

by BIOS directly.

Operation Theorem

DMA Transfer (DMAX)

The DMA (Direct Memory Access) bus master allows data to be

transferred directly between the PCI-9112 and the PC memory at the

fastest possible rate, without using any CPU time. The A/D data will be

queue at local FIFO on the PCI-9112 itself and it is automatically

transferred to PC's memory.

The DMA transfer mode is very complex to program. It is recommended

to use the high level program library to operate this card. If you wish to

program the software which can handle the DMA bus master data transfer,

please refer to more information about PCI controller.

4.3 D/A Conversion

The operation of D/A conversion is more simple than A/D operation. You

only need to write Digital values into the D/A data registers and the

corresponding voltage will be output from the AO1 or AO2. Refer to

section 4.3 for information about the D/A data registers.

The

mathematical relationship between the Digital number DAn and the output

voltage is formulated as following:

DAn

Vout = -Vref ´

4096

where the Vref is the reference voltage, the Vout is the output voltage,

and the DAn is the Digital value in D/A data registers.

Before performing the D/A conversion, users should care about the D/A

reference voltage which set by the JP3 and JP4. Please refer section 2.8

for jumper setting. The reference voltage will effect the output voltage. If

the reference voltage is -5V, the D/A output scaling will be 0~5V. If the

reference voltage is -10V, the D/A output scaling will be 0~10V.

The PCI-9112 has two unipolar analog output channels. To make the D/A

output connections from the appropriate D/A output, please refer Figure

3.8.

-5 or -10

INT or Ext

Pin-30 ( AO0)

Ref In

Pin-32 ( AO1)

D/A Converter

To D/A Output

D/A

Pin-14 ( A.GND)

Analog GND

Figure 4.3 Connection of Analog Output Connection

Operation Theorem

4.4 Digital Input and Output

The PCI-9112 provides 16 digital input and 16 digital output channels

through the connector CN1 and CN2 on board. The digital I/O signal are

fully TTL/DTL compatible. The detailed digital I/O signal are specified in

section 1.3.

To program digital I/O operation is fairly straight forward. The digital input

operation is just to read data from the corresponding registers, and the

digital output operation is to write data to the corresponding registers. The

digital I/O registers‘ format are shown in section 4.5. Note that the DIO

data channel can only be read or written in form of 16 bits together. It is

impossible to access individual bit channel.

74LS244

Digital Input(DI)

From TTL Signal

Digital Output (DO)

To TTL Devices

74LS373

Digital GND (DGND)

Outside Device

Figure 4.4 Digital I/O Connection

ACL-8112

Operation Theorem

4.5 Timer/Counter Operation

The PCI-9112 has an interval timer/counter 8254 on board. It offers 3

independent 16-bit programmable down counters; counter 1 and counter

2 are cascaded together for A/D timer pacer trigger of A/D conversion,

and counter 0 is free for your applications. Figure 3.10 shows the 8254

timer/counter connection.

CN3 Pin-37

8254 Timer/Counter

EXT

INT

Counter 0

GATE0

CLK0

OUT0

CN3 Pin-33

CN3 Pin-34

CN3 Pin-16

Vcc

Counter 1

GATE1

CLK1

OUT1

OUT2

A/D Trigger

CN3 Pin-35

2MHz

Oscillator

Counter 2

CLK2

GATE2

Figure 4.5 Block Diagram of 8254 Timer/Counter

The clock source of counter 0 can be internal or external, while the gate

can be controlled externally and the output is send to the connector CN3.

As to counter 0 and counter 1, the clock source is internally fixed, while

the gate can be controlled externally and the output is send to the

connector CN3 too. All the timer/ counter signals are TTL compatible.

The following shows how to configure the 8254 timer / counter chip.

The 8254 Timer / Counter Chip

The Intel (NEC) 8254 contains three independent, programmable, multi-

mode 16 bit counter/timers. The three independent 16 bit counters can be

clocked at rates from DC to 5 MHz. Each counter can be individually

programmed with 6 different operating modes by appropriately formatted

control words. The most commonly uses for the 8254 in microprocessor

based system are:

programmable baud rate generator

Operation Theorem

event counter

binary rate multiplier

real-time clock

Digital one-shot

motor control

For more information about the 8254, please refer to the NEC

Microprocessors and peripherals or Intel Microsystems Components

Handbook.

Pacer Trigger Source

The counter 1 and counter 2 are cascaded together to generate the timer

pacer trigger of A/D conversion. The frequency of the pacer trigger is

software controllable. The maximum pacer signal rate is 2MHz/4=500K

which excess the maximum A/D conversion rate of the PCI-9112. The

minimum signal rate is 2MHz/65536/65536, which is a very slow

frequency that user may never use it.

General Purpose Timer/ Counter

The counter 0 is free for users' applications. The clock source, gate

control signal and the output signal is send to the connector CN3. The

general purpose timer / counter can be used as event counter, or used for

measuring frequency, or others functions.

I/O Address

The 8254 in the PCI-9112 occupies 4 I/O address as shown below.

BASE + 0

BASE + 1

BASE + 2

BASE + 3

LSB OR MSB OF COUNTER 0

LSB OR MSB OF COUNTER 1

LSB OR MSB OF COUNTER 2

CONTROL BYTE

The programming of 8254 is control by the registers BASE+0 to BASE+3.

The functionality of each register is specified this section. For more

detailed information, please refer handbook of 8254 chip.

Operation Theorem

Control Byte

Before loading or reading any of these individual counters, the control

byte (BASE+3) must be loaded first. The format of the control byte is :

SC1 & SC0 - Select Counter (Bit7 & Bit 6)

COUNTER

Select Counter 0

Select Counter 1

Select Counter 2

ILLEGAL

RL1 & RL0 - Select Read/Load operation (Bit 5 & Bit 4)

OPERATION

COUNTER LATCH FOR STABLE READ

READ/LOAD LSB ONLY

READ/LOAD MSB ONLY

READ/LOAD LSB FIRST, THEN MSB

M2, M1 & M0 - Select Operating Mode (Bit 3, Bit 2, & Bit 1)

MODE

Operation Theorem

BCD - Select Binary/BCD Counting (Bit 0)

16-BITS BINARY COUNTER

BINARY CODED DECIMAL (BCD) COUNTER

(4 DIGITAL)

The count of the binary counter is from 0 up to

65,535 and the count of the BCD counter is

from 0 up to 9,999

Mode Definitions

In 8254, six operating modes can be selected. They are :

Mode 0: Interrupt on Terminal Count

Mode 1: Programmable One-Shot.

Mode 2: Rate Generator.

Mode 3: Square Wave Rate Generator.

Mode 4: Software Triggered Strobe.

Mode 5: Hardware Triggered Strobe.

All detailed description of these six modes are written in Intel

Microsystems Components Handbook Volume II Peripherals.

Operation Theorem

C/C++ Library

This chapter describes the software library for operating this card. Only

the functions in DOS library and Windows 95 DLL are described. Please

refer to the PCIS-DASK function reference manual, which included in

ADLINK CD, for the descriptions of the Windows 98/NT/2000 DLL

functions.

The function prototypes and some useful constants are defined in the

header files LIB directory (DOS) and INCLUDE directory (Windows 95).

For Windows 95 DLL, the developing environment can be Visual Basic

4.0 or above, Visual C/C++ 4.0 or above, Borland C++ 5.0 or above,

Borland Delphi 2.x (32-bit) or above, or any Windows programming

language that allows calls to a DLL. It provides the C/C++, VB, and Delphi

include files.

5.1 Libraries Installation

Please refer to the “Software Installation Guide” for the detail

information about how to install the software libraries for DOS, or

Windows 95 DLL, or PCIS-DASK for Windows 98/NT/2000.

The device drivers and DLL functions of Windows 98/NT/2000 are

included in the PCIS-DASK. Please refer the PCIS-DASK user’ s guide

and function reference, which included in the ADLINK CD, for detailed

programming information.

C/C++ Library 39

5.2 Programming Guide

5.2.1 Naming Convention

The functions of the NuDAQ PCI cards or NuIPC CompactPCI cards’

software driver are using full-names to represent the functions' real

meaning. The naming convention rules are:

In DOS Environment :

_{hardware_model}_{action_name}. e.g. _9112_Initial().

All functions in PCI-9112 driver are with 9112 as {hardware_model}.

But they can be used by PCI-9112, cPCI-9112.

In order to recognize the difference between DOS library and Windows 95

library, a capital "W" is put on the head of each function name of the

Windows 95 DLL driver. e.g. W_9112_Initial().

5.2.2 Data Types

We defined some data type in Pci_9112.h (DOS) and Acl_pci.h (Windows

95). These data types are used by NuDAQ Cards’ library. We suggest

you to use these data types in your application programs. The following

table shows the data type names and their range.

Type Name

Description

Range

0 to 255

-32768 to 32767

0 to 65535

8-bit ASCII character

16-bit signed integer

16-bit unsigned integer

32-bit signed integer

32-bit single-precision

floating-point

I16

U16

I32

U32

-2147483648 to 2147483647

0 to 4294967295

F32

32-bit single-precision -3.402823E38 to 3.402823E38

floating-point

F64

64-bit double-precision -1.797683134862315E308 to

floating-point

1.797683134862315E309

Boolean

Boolean logic value

TRUE, FALSE

C/C++ Library

5.3 _9112_Initial

@ Description

A PCI-9112 card is initialized according to the card number. Becaus e the

PCI-9112 is PCI bus architecture and meets the plug and play design, the

IRQ and base_address (pass-through address) are assigned by system

BIOS directly. Every PCI-9112 card has to be initialized by this function

before calling other functions.

Note : Because configuration of PCI-9112 is handled by the system,

there is no jumpers or DMA selection on the PCI boards that

need to be set up by the users.

Syntax

Visual C++ (Windows-95)

int W_9112_Initial (int card_number, int *base_address, int

*irq_no)

Visual Basic (Windows-95)

W_9112_Initial (ByVal card_number As Long, base_address As Long,

irq_no As Long) As Integer

C/C++ (DOS)

int _9112_Initial (int card_number, int *base_address, int

*irq_no)

Argument

card_number : the card number to be initialized, only four cards can be

initialized, the card number must be CARD_1, CARD_2,

CARD_3, or CARD_4.

base_address : the I/O port base address of the card, it is asigned by system

BIOS.

irq_no: system will give an available interrupt number to this card automatically.

Return Code

ERR_NoError,

ERR_InvalidBoardNumber

ERR_PCICardNotExist

ERR_PCIBiosNotExist,

ERR_PCIIrqNotExist

Example

#include "9112.h"

main()

{

int errCode;

int baseAddr1, irqNo1;

int baseAddr2, irqNo2;

errCode = _9112_Initial( CARD_1, &baseAddr1, &irqNo1);

if ( errCode != ERR_NoError )

C/C++ Library 41

exit(0);

errCode = _9112_Initial( CARD_2, &baseAddr2, &irqNo2);

if ( errCode != ERR_NoError )

exit(0);

}

5.4 _9112_DI

@ Description

This function is used to read data from digital input port. There are 16-bit

digital inputs on the PCI-9112. You can get all 16 input data from

_9112_DI one shot.

Syntax

Visual C++ (Windows-95)

int W_9112_DI (int card_number, unsigned int *di_data)

Visual Basic (Windows-95)

int W_9112_DI (ByVal card_number As Long, di_data As Long) As

Long

C/C++ (DOS)

int _9112_DI (int card_number, unsigned int *di_data)

Argument

card_number : the card number of PCI-9112

di_data :

return all 16-bit value from digital port.

Return Code

ERR_NoError,

ERR_BoardNoInit

Example

See Appendix A . Demo Program 'DIO_DEMO.C'

5.5 _9112_DI _Channel

Description

This function is used to read data from digital input channels (bit). There

are 16 digital input channels on the PCI-9112. When performs this

function, the digital input port is read and the value of the corresponding

channel is returned.

* channel means each bit of digital input ports.

C/C++ Library

Syntax

Visual C++ (Windows-95)

int W_9112_DI_Channel (int card_number, int di_ch_no, unsigned

int *di_data)

Visual Basic (Windows-95)

W_9112_DI_Channel (ByVal card_number As Long, ByVal di_ch_no As

Long, di_data As Long) As Integer

C/C++ ( DOS)

int _9112_DI_Channel (int card_number, int di_ch_no, unsigned

int *di_data )

Argument

card_number : the card number of PCI-9112

di_ch_no :

from 0 to 15.

di_data :

the DI channel number, the value has to be set

return value, either 0 or 1.

Return Code

ERR_NoError,

ERR_BoardNoInit,

ERR_InvalidDIChannel

Example

#include “9112.h”

main()

{

unsigned int data;

int ch;

int baseAddr, irqNo;

_9112_Initial( CARD_1, &baseAddr, &irqNo);

/* Assume NoError when Initialize PCI-9112 */

for( ch=0; ch<16; ch++ )

{

_9112_DI_Channel(CARD_1, ch , &data );

printf( "The value of DI channel %d is %d.\n",ch , data);

}

5.6 _9112_DO

Description

This function is used to write data to digital output port. There are 16

digital outputs on the PCI-9112,

C/C++ Library 43

Syntax

Visual C++ (Windows-95)

int W_9112_DO (int card_number, unsigned int do_data)

Visual Basic (Windows-95)

W_9112_DO (ByVal card_number As Long, ByVal do_data As Long) As

Integer

C/C++ ( DOS)

int _9112_DO(int card_number, unsigned int do_data )

Argument

card_number : the card number of PCI-9112

do_data :

value will be written to digital output port

Return Code

ERR_NoError,

ERR_BoardNoInit

5.7 _9112_DA

Description

This function is used to write data to D/A converters. There are two

Digital-to-Analog conversion channels on the PCI-9112. The resolution of

each channel is 12-bit, i.e. the range is from 0 to 4095.

Syntax

Visual C++(Windows-95)

int W_9112_DA (int card_number, int da_ch_no, unsigned int data)

Visual Basic (Windows-95)

W_9112_DA (ByVal card_number As Long, ByVal da_ch_no As Long,

ByVal da_data As Long) As Long

C/C++ ( DOS)

int _9112_DA (int card_number, int da_ch_no, unsigned int data )

Argument

card_number : the card number of PCI-9112

da_ch_no :

D/A channel number, DA_CH_1 or DA_CH_2.

data : D/A converted value, if the value is greater than 4095,

the higher bits are negligent.

Return Code

ERR_NoError,

ERR_BoardNoInit

ERR_InvalidDAChannel

C/C++ Library

Example

#include “9112.h”

main()

{

Int

baseAddr, irqNo;

_9112_Initial( CARD_1, &baseAddr, &irqNo);

/* Assume NoError when Initialize PCI-9112 */

/* if the hardware setting for DA output range is 0~5V */

_9112_DA(CARD_1, DA_CH_1 , 0x800 );

printf( "The output voltage of CH1 is 2.5V \n" );

_9112_DA(CARD_1, DA_CH_2 , 0xFFF );

printf( "The output voltage of CH2 is 5V \n" );

}

A more complete program is specified in Appendix A Demo.

Program 'DA_DEMO.C'

5.8 _9112_AD_Set_Channel

Description

This function is used to set AD channel by means of writing data to the

multiplexed scan channel register. There are 16 single-ended or 8

differential analog input channels in PCI-9112, so the channel number

should be set between 0 to 15 for signled-end analog input mode, and 0

to 7 for differnetial analog input mode. The initial state is channel 0 which

is a default setting by the PCI-9112 hardware configuration.

Syntax

Visual C++ (Windows-95)

int W_9112_ AD_Set_Channel (int card_number, int ad_ch_no)

Visual Basic (Windows-95)

W_9112_AD_Set_Channel (ByVal card_number As Long, ByVal

da_ch_no As Long) As Long

C/C++ ( DOS)

int _9112_AD_Set_Channel (int card_number, int ad_ch_no )

Argument

card_number : the card number of PCI-9112

ad_ch_no :

channel number to perform AD conversion

for single-ended mode : channel no. is from 0-15; for

differential mode : channel no. is from 0-7

C/C++ Library 45

Return Code :

ERR_NoError,

ERR_BoardNoInit

ERR_InvalidADChannel

5.9 _9112_AD_Set_Range

Description

This function is used to set the A/D analog input range by means of

writing data to the A/D range control register. There are two factors will

change the analog input range - Gain and Input type.

The Gain can be choice from 0.5, 1, 2, 4, and 8 . The input type is either

Bipolar or Unipolar.

The initial value of gain is '1‘ and input type is bipolar, which are pre-set

by the PCI-9112 hardware. The relationship between analog input

voltage range, gain and input mode are specified by following tables:

** this table is suitable for PCI-9112 card.

Input type

AD_INPUT

GAIN

(Bipolar

Unipolar)

Bipolar

Input Range

AD_B_5_V

AD_B_2_5

±5V

±2.5V

AD_B_1_2

5_V

AD_B_0_6

25_V

AD_U_10_

Bipolar

Unipolar

±1.25V

±0.625V

0V ~ 10V

AD_U_5_V

AD_U_2_5

Unipolar

0V ~ 5V

0V ~ 2.5V

AD_U_1_2

5_V

AD_B_10_

Unipolar

Bipolar

0V ~ 1.25V

0.5

±10V

C/C++ Library

Syntax

Visual C++ (Windows-95)

int W_9112_ AD_Set_Range (int card_number, int ad_range)

Visual Basic (Windows-95)

W_9112_AD_Set_Channel (ByVal card_number As Long, ByVal

ad_range As Long) As Long

C/C++ ( DOS)

int _9112_AD_Set_Range (int card_number, int ad_range )

Argument

card_number : the card number of PCI-9112

ad_range :

the programmable range of A/D conversion,

please refer the the above table for the possible range values.

Return Code

ERR_NoError

ERR_BoardNoInit

ERR_AD_InvalidRange

5.10 _9112_AD_Set_Mode

Description

This function is used to set the A/D trigger and data transfer mode by

means of writing data to the mode control register. The hardware initial

state of the PCI-9112 is set as AD_MODE_0 software (internal) trigger

with program polling data. For more detailed description of DMA bus

mastering mode is specified in section 4.13.

A/D Mode

Description

AD_MOD

E_0

Software Trigger, Software Polling

AD_MOD

E_1

Timer Trigger, Interrupt Transfer

AD_MOD

E_2

AD_MOD

E_3

Timer Trigger, DMA ( bus mastering)Transfer

External Trigger, Software Polling

AD_MOD

E_4

External Trigger, Interrupt Transfer

AD_MOD

E_5

External Trigger, DMA (bus mastering) Transfer

C/C++ Library 47

Syntax

Visual C++ (Window s-95)

int W_9112_AD_Set_Mode (int card_number, int ad_mode)

Visual Basic (Windows-95)

W_9112_AD_Set_Mode (ByVal card_number As Long, ByVal ad_mode As

Long) As Long

C/C++ ( DOS)

int _9112_AD_Set_Mode (int card_number, int ad_mode )

Argument

card_number : the card number of PCI-9112

ad_mode :

AD trigger and data transfer mode

( please refer to above table.)

Return Code

ERR_NoError

ERR_BoardNoInit

ERR_InvalidMode

Example

#include “9112.h”

main()

{

Int baseAddr, irqNo;

_9112_Initial( CARD_1, &baseAddr, &irqNo);

/* Assume NoError when Initialize PCI-9112 */

_9112_AD_Set_Range(CARD_1, AD_B_5_V );

printf( "The A/D analog input range is +/- 5V \n" );

_9112_AD_Set_Mode(CARD_1, AD_MODE_4 );

printf( "Now, The Internal Timer Pacer trigger is set \n" );

/* All A/D conversion will be trigger by internal timer pacer,

and the converted data should be transfered in the interrupt

service routine. ( ISR). */

}

5.11 _9112_AD_Set_Autoscan

Description

This function is used to set automatic hardware channel scan to be

enable or disable. If the PCI-9112 is set as enable mode, then the A/D

channel can be converted automatically, that is, the hardware will

automatically decrement until channel 0. Then, it will go back to channel

which is set by _9112_AD_Set_Channle and wrap back to zero again.

For example, the channel is set as 4, the A/D conversion sequence will be

C/C++ Library

4, 3, 2, 1, 0, 4, 3, 2, 1, 0, 4, 3, 2, 1, 0, 4, 3, ......

If the auto-scan is set as disable, the channel will be kept as single

channel only, such as channel 4.

Syntax

Visual C++ (Windows-95)

int W_9112_AD_Set_Autoscan (int card_number, int autoscan)

Visual Basic (Windows-95)

int W_9112_AD_Set_ Autoscan (ByVal card_number As Long, ByVal

autoscan As Long) As Long

C/C++ ( DOS)

int _9112_AD_Set_Autoscan (int card_number, int autoscan)

Argument

card_number : the card number of PCI-9112

autoscan :

TRUE or FALSE

Return Code

ERR_NoError, ERR_BoardNoInit

Example

See the demo program ‘AD_DEMO4.C'

5.12 _9112_AD_Soft_Trig

Description

This function is used to trigger the A/D conversion by software. When the

function is called, a trigger pulse will be generated and A/D conversion is

started, and the converted data will be stored in the base address Base +

0x10 after the conversion.

Syntax

Visual C++ (Windows-95)

int W_9112_ AD_AD_Soft_Trig (int card_number)

Visual Basic (Windows-95)

W_9112_ AD_Soft_Trig (ByVal card_number As Long) As Long

C/C++ ( DOS)

int _9112_AD_Soft_Trig (int card_number)

Argument :

card_number : the card number of PCI-9112

Return Code :

ERR_NoError, ERR_BoardNoInit

C/C++ Library 49

5.13 _9112_AD_Aquire

Description

This function is used to poll the AD conversion data. It will trigger the AD

conversion, and read the 12-bit A/D data until the data is ready ('data

ready' bit becomes low).

Syntax

Visual C++ (Windows-95)

int W_9112_AD_Aquire (int card_number, int *ad_data)

Visual Basic (Windows-95)

W_9112_ AD_Aquire (ByVal card_number As Long, ad_data As

Long )As Integer

C/C++ ( DOS)

int _9112_AD_Aquire (int card_number, int *ad_data )

Argument

card_number : the card number of PCI-9112

ad_data :

12-bit A/D converted value, the value should be

within 0 to 4095.

Bit 0 ~ Bit 3 : is the converted channel number

Bit 4 ~ Bit 15 : is the converted A/D data.

Return Code :

ERR_NoError,

ERR_BoardNoInit

ERR_AD_AquireTimeOut

Example

#include “9112.h”

main()

{

int

ad_data;

errCode;

Int baseAddr, irqNo;

_9112_Initial( CARD_1, &baseAddr, &irqNo);

/* Assume NoError when Initialize PCI-9112 */

/* Set to software trigger at first*/

_9112_AD_Set_Mode(CARD_1, AD_MODE_0 );

/* then trigger the AD */

_9112_AD_Soft_Trig(CARD_1);

/* wait for AD data ready then read it */

errCode = _9112_AD_Aquire(CARD_1, &ad_data);

if( errCode == ERR_NoError )

printf( "The AD value is %d.\n", ad_data );

else

printf( "AD conversion error happen\n" );

Also See Demo Program 'AD_DEMO1.C'

}

C/C++ Library

5.14 _9112_AD_DMA_Start

Description

The function will perform A/D conversion N times with DMA data transfer.

It takes place in the background which will not stop until the N-th

conversion

has

completed

your

program

execute

_9112_AD_DMA_Stop() function to stop the process.

After executing this function, it is necessary to check the status of the

operation by using the function _9112_AD_DMA_Status(). The function

is performed on single A/D channel when the A/D channel auto-scan is

set as FALSE. If the A/D channel auto-scan is TRUE, the conversion will

be multiple channels by sequence.

The PCI-9112 Bus mastering DMA is different from tradition PC style

DMA. Its description is as following:

Bus Mastering DMA mode of PCI-9112:

PCI bus mastering offers the highest possible speed available on the PCI-

9112. When the function _9112_AD_Set_Mode is set as AD_MODE_2

( Timer Trigger & DMA transfer ) or AD_MODE_5 ( External Trigger &

DMA transfer), it will enable PCI bus master operation. This is

conceptually similar to DMA (Direct Memory Access) transfers in a PC but

is really PCI bus mastering. It does not use an 8237-style DMA controller

in the host computer and therefore isn't blocked in 64K max. groups. PCI-

9112 bus mastering works as follows:

1. To set up bus mastering, first do all normal PCI-9112 initialization

necessary to control the board in status mode. This includes testing for

the presence of the PCI BIOS, determining the base addresses, slot

number, vendor and device ID's, I/O or memory, space allocation, etc.

Please make sure your PCI-9112 is plug in a bus master slot, otherwise

this function will not be workable.

2. Load the PCI controller with the count and 32-bit physical address of

the start of previously allocated destination memory which will accept A/D

data. This count is the number of bytes (not longwords!) transferred

during the bus master operation and can be a large number up to 64

million (2^26) bytes. Since the PCI-9112 transfers are always longwords,

this is 16 million longwords (2^24) or 32 million A/D samples but use the

bytecount.

C/C++ Library 51

3. After the A/D conversion is started, the A/D converted data is stored in

the FIFO of PCI controller. Each bus mastering data transfer continually

tests if any data in the FIFO and then blocks transfer, the system will

continuously loop until the conditions are satisfied again but will not exit

the block transfer cycle if the block count is not complete. If there is

momentarily no A/D data, the PCI-9112 will relinquish the bus temporarily

but returns immediately when more A/D samples appear. This operation

continues until the whole block is done.

4. This operation proceeds transparently until the PCI controller transfer

byte count is complete. All normal PCI bus operation applies here such as

a receiver which cannot accept the transfers, higher priority devices

requesting the PCI bus, etc. Remember that only one PCI initiator can

have bus mastership at any one time. However, review the PCI priority

and "fairness" rules. Also study the effects of the Latency Timer. And be

aware that the PCI priority strategy (round robin rotated, fixed priority,

custom, etc.) is unique to your host PC and is explicitly not defined by the

PCI standard. You must determine this priority scheme for your own PC

(or replace it).

5. The interrupt request from the PCI controller can be optionally set up to

indicate that this longword count is complete although this can also be

determined by polling the PCI controller.

Syntax

Visual C++ (Windows-95)

int W_9112_AD_DMA_Start (int card_number, int auto_scan, int

ad_ch_no, int ad_range, int count, HANDLE memID, int c1, int c2)

Visual Basic (Windows-95)

W_9112_AD_DMA_Start (ByVal card_number As Long, ByVal auto_scan

As Long, ByVal ad_ch_no As Long, ByVal ad_range As Long, ByVal

count As Long, ByVal memID As Long, ByVal c1 As Long, ByVal c2

As Long) As Long

C/C++ ( DOS)

int _9112_AD_DMA_Start (int card_number, int auto_scan, int

ad_ch_no, int ad_range, int count , unsigned long *ad_buffer,

int c1,int c2)

Argument

card_number:

the card number of PCI-9112

auto_scan: TRUE or FALSE

Example1:

auto_scan is FALSE, ad_ch_no is 3. Using DMA mode to

read A/D data only channel 3.

Example2: auto_scan is TRUE, ad_ch_no is 3. Using DMA mode to read

A/D data with multi-channel , channel 3, 2, 1 and 0. Reading sequence is

channel 3,2,1,0, 3,2,1,0,3,2,1,0....

C/C++ Library

ad_ch_no : A/D channel number

ad_range : A/D analog input range, the possible values are shown in

section 4.3.8.

count :

the number of A/D conversion

ad_buffer(DOS) :the start address of the memory buffer to store the AD

data, the buffer size must large than the number of AD conversion.

In DOS environment, please make sure this memory is double-word

alignment. Every 16-bit unsigned integer data in ad_buffer:

D11 D10 D9 .......................D1 D0 C3 C2 C1 C0

D11, D10, ..., D1, D0 : A/D converted data

C3, C2, C1, C0

: converted channel no.

memID(Windows-95) : the memory ID of the allocated system DMA

memory. In Windows 95 environment, before calling

W_9112_AD_DMA_Start, W_9112_Alloc_DMA_Mem must be called to

allocate a contiguous DMA memory. W_9112_Alloc_DMA_Mem will

return a memory ID for identify the allocated DMA memory, as well as the

linear address of the DMA memory for user to access the data. The

format of the A/D data is the same as DOS buffer (ad_buffer argument).

c1 : the 16-bit timer frequency divider of timer channel #1

c2 : the 16-bit timer frequency divider of timer channel #2

Return Code

ERR_NoError, ERR_BoardNoInit, ERR_InvalidADChannel,

ERR_AD_InvalidRange, ERR_InvalidTimerValue

Example

See Demo Program 'AD_DEMO3.C' , 'AD_DEMO6.C'

5.15 _9112_AD_DMA_Status

Description

Since the _9112_AD_DMA_Start function executs in background, you can

issue the function _9112_AD_DMA_Status to check its operation status.

Syntax

Visual C++ (Windows-95)

int W_9112_AD_DMA_Status (int card_number, int *status, int *

count)

Visual Basic (Windows-95)

W_9112_AD_Status (ByVal card_number As Long, status As Long,

count As Long) As Long

C/C++ Library 53

C/C++ ( DOS)

int _9112_AD_DMA_Status(int card_number, int *status , int

*count )

Argument

card_number :

the card number of PCI-9112

status : status of the DMA data transfer

0: AD_DMA_STOP : DMA is completed

1: AD_DMA_RUN : DMA is not completed

count :

the number of A/D data which has been transferred.

Return Code

ERR_NoError,

ERR_BoardNoInit

Example

See Demo Program 'AD_DEMO3.C' , 'AD_DEMO6.C'

5.16 _9112_AD_DMA_Stop

Description

This function is used to stop the DMA data transferring. After executing

this function, the internal A/D trigger is disable and the A/D timer ( timer

#1 and #2) is stopped. The function returns the number of the data which

has been transferred, no matter if the A/D DMA data transfer is stopped

by this function or by the DMA terminal count ISR.

Syntax

Visual C++ (Windows-95)

int W_9112_AD_DMA_Stop (int card_number, int * count)

Visual Basic (Windows-95)

W_9112_AD_DMA_Stop (ByVal card_number As Long, count As Long)

As Long

C/C++ ( DOS)

int _9112_AD_DMA_Stop (int card_number, int *count )

Argument

card_number :

the card number of PCI-9112

the number of A/D converted data which has been

count :

transferred.

Return Code

ERR_NoError

ERR_BoardNoInit

Example

See Demo Program 'AD_DEMO3.C', ‘AD_DEMO6.C’

C/C++ Library

5.17 _9112_ContDmaStart

Description

The function will perform A/D conversion continuous with DMA data

transfer. It will takes place in the background which will not be stop until

your program execute _9112_ContDmaStop() function to stop the

process.

After executing this function, it is necessary to check the status of double

buffer

by using the function _9112_CheckHalfReady() and using

_9112_DblBufferTransfer() to get the A/D converted data.

There is a group function for continuous A/D conversion using DMA as

following:

_9112_ContDmaStart();

_9112_CheckHalfReady();

_9112_DblBufferTransfer();

_9112_GetOverrunStatus();

_9112_ContDmaStop();

Syntax

Visual C++ (Windows-95)

int W_9112_ContDmaStart (int card_number, int auto_scan, int

ad_ch_no, int ad_range, int count, HANDLE memID, int c1, int c2)

Visual Basic (Windows-95)

W_9112_ContDmaStart (ByVal card_number As Long, ByVal auto_scan

As Long, ByVal ad_ch_no As Long, ByVal ad_range As Long, ByVal

count As Long, ByVal memID As Long,

ByVal c2 As Long) As Long

ByVal c1 As Long

C/C++ ( DOS)

int _9112_ContDmaStart (int card_number, int auto_scan, int

ad_ch_no, int ad_range, int count , int *db_buffer, int c1,

int c2)

Argument

card_number :

auto_scan :

the card number of PCI-9112

TRUE or FALSE

Example1 : auto_scan is FALSE, ad_ch_no is 3. Using DMA mode to

read A/D data only channel 3.

Example2 : auto_scan is TRUE, ad_ch_no is 3. Using DMA mode to

read A/D data with multi-channel, channel 3, 2, 1 and 0.

Reading sequence is channel 3,2,1,0, 3,2,1,0,3,2,1,0....

ad_ch_no :

ad_range :

A/D channel number

A/D analog input range, please refer to the

section 4.3.8 for the possible values.

count :the number of A/D conversion

db_buffer(DOS):

the start address of the circular buffer to store the

C/C++ Library 55

AD data, the buffer size must large than the number of AD conversion.

In DOS environment, please make sure this memory is double-word

alignment. Every 16-bit unsigned integer data in ad_buffer:

D11 D10 D9 .......................D1 D0 C3 C2 C1 C0

D11, D10, ..., D1, D0 : A/D converted data

C3, C2, C1, C0

: converted channel no.

memID(Windows-95) : the memory ID of the allocated system DMA

memory to act as the circular buffer. In Windows 95 environment, before

calling W_9112_ContDmaStart, W_9112_Alloc_DMA_Mem must be

called to allocate a contiguous DMA memory. W_9112_Alloc_DMA_Mem

will return a memory ID for identify the allocated DMA memory, as well as

the linear address of the DMA memory for user to access the data. The

format of the A/D data is the same as DOS buffer (ad_buffer argument).

c1 :

c2 :

the 16-bit timer frequency divider of timer channel #1

the 16-bit timer frequency divider of timer channel #2

Return Code

ERR_NoError,

ERR_BoardNoInit,

ERR_InvalidADChannel, ERR_AD_InvalidRange,

ERR_InvalidTimerValue

Example

See Demo Program 'AD_DEMO5.C'

5.18 _9112_CheckHalfReady

Description

When you use _9112_ContDmaStart() to convert A/D data then you must

use _9112_CheckHalfReady() to check data ready or not in the circular

buffer, size of data is half of the circular buffer (count/2) and using

_9112_DblBufferTransfer() to get data.

Syntax

Visual C++ (Windows-95)

int W_9112_CheckHalfReady (int card_number, int * halfReady)

Visual Basic (Windows-95)

int W_9112_CheckHalfReady (ByVal card_number As Long, halfReady

As Long) As Long

C/C++ ( DOS)

int _9112_CheckHalfReady(int card_number, int *halfReady )

C/C++ Library

Argument

card_number :

halfReady : TRUE or FALSE.

the card number of PCI-9112

Return Code

ERR_NoError,

ERR_BoardNoInit

Example

See Demo Program 'AD_DEMO5.C'

5.19 _9112_DblBufferTransfer

Description

Using this function to move the converted A/D data to user buffer.

Syntax

Visual C++ (Windows-95)

int W_9112_DblBufferTransfer (int card_number, unsigned long

far * userBuffer)

Visual Basic (Windows-95)

W_9112_ DblBufferTransfer (ByVal card_number As Long,

userBuffer As Long) As Long

C/C++ ( DOS)

int _9112_DblBufferTransfer(int card_number, unsigned long

*userBuffer )

Argument :

card_number :

the card number of PCI-9112

userBuffer : user buffer for A/D converted data, size of user buffer is

half of doubleBuf (count /2).

Return Code :

ERR_NoError, ERR_BoardNoInit

Example :

See Demo Program 'AD_DEMO5.C'

5.20 _9112_GetOverrunStatus

Description

When you use _9112_ContDmaStart() to convert A/D data and if you do

not use _9112_DblBufferTransfer to move converted data then the double

buffer overrun will occur, using this function to check overrun count.

Syntax

Visual C++ (Windows-95)

int W_9112_GetOverrunStatus (int card_number, int *

overrunCount)

C/C++ Library 57

Visual Basic (Windows-95)

W_9112_GetOverrunStatus(ByVal card_number As Long, overrunCount

As Long) As Long

C/C++ ( DOS)

int _9112_GetOverrunStatus (int card_number, int *overrunCount )

Argument

card_number :

overrunCount:

the card number of PCI-9112

number of overrun counts.

Return Code

ERR_NoError,

ERR_BoardNoInit

Example

See Demo Program 'AD_DEMO5.C'

5.21 _9112_ContDmaStop

Description

This function is used to stop the continuous DMA data transferring.

Syntax

Visual C++ (Windows-95)

int W_9112_ContDmaStop (int card_number)

Visual Basic (Windows-95)

W_9112_ContDmaStop (ByVal card_number As Long) As Long

C/C++ ( DOS)

int _9112_ContDmaStop (int card_number)

Argument :

card_number :

the card number of PCI-9112

Return Code :

ERR_NoError,

ERR_BoardNoInit

Example :

See Demo Program 'AD_DEMO5.C'

C/C++ Library

5.22 _9112_AD_INT_Start

Description

The function will perform A/D conversion N times with interrupt data

transfer. It takes place in the background which will not stop until the N-th

conversion has been completed or your program execute

_9112_AD_INT_Stop() function to stop the process. After executing this

function, it is necessary to check the status of the operation by using the

function 9112_AD_INT_Status(). The function is performed on single A/D

channel with fixed analog input range.

Syntax

Visual C++(Windows-95)

int W_9112_AD_INT_Start(int card_number, int auto_scan, int

ad_ch_no, int ad_range, int count, unsigned long *ad_buffer,

int c1, int c2)

Visual Basic (Windows-95)

W_9112_ AD_INT_Start (ByVal card_number As Long, ByVal

auto_scan As Long, ByVal ad_ch_no As Long, ByVal ad_range As

Long, ByVal count As Long, ad_buffer As Integer,ByVal c1 As

Long, ByVal c2 As Long) As Long

C/C++ (DOS)

int _9112_INT_Start (int card_number, int auto_scan, int

ad_ch_no, int ad_range,int count, unsigned long *ad_buffer,

int c1, int c2)

Argument

card_number :

the card number of PCI-9112

auto_scan : TRUE or FALSE

Example1 : auto_scan is FALSE, ad_ch_no is 3. Using DMA mode to

read A/D data only channel 3.

Example2 : auto_scan is TRUE, ad_ch_no is 3. Using INT mode to read

A/D data with multi-channel , channel 3, 2, 1 and 0. Reading sequence is

channel 3,2,1,0, 3,2,1,0,3,2,1,0....

ad_ch_no : A/D channel number

ad_range : A/D analog input range, please refer to the section 4.3.8 for

the possible values.

count :

the number of A/D conversion

ad_buffer : the start address of the memory buffer to store the AD data,

the buffer size must large than the number of AD conversion.

In DOS environment, please make sure this memory is double-word

alignment. Every 16-bit unsigned integer data in ad_buffer:

C/C++ Library 59

D11 D10 D9 .......................D1 D0 C3 C2 C1 C0

D11, D10, ..., D1, D0 : A/D converted data

C3, C2, C1, C0

: converted channel no.

c1 : the 16-bit timer frequency divider of timer channel #1

c2 : the 16-bit timer frequency divider of timer channel #2

Return Code

ERR_NoError,

ERR_BoardNoInit

ERR_InvalidADChannel , ERR_AD_InvalidRange

ERR_InvalidTimerValue

Example

See Demo Program 'AD_DEMO2.C' , ‘AD_DEMO5.C’

5.23 _9112_AD_INT_Status

Description

Since the _9112_AD_INT_Start() function executs in background, you

can issue the function _9112_AD_INT_Status to check the status of

interrupt operation.

Syntax

Visual C++ (Windows-95)

int W_9112_AD_ INT_Status (int card_number, int *status, int *

count)

Visual Basic (Windows-95)

W_9112_INT_Status (ByVal card_number As Long, status As Long,

count As Long) As Long

C/C++ ( DOS)

int _9112_AD_INT_Status(int card_number, int *status , int

*count )

Argument

card_number :

the card number of PCI-9112

status :

status of the INT data transfer

0 : AD_INT_STOP : DMA is completed

1 : AD_INT_RUN : DMA is not completed

current conversion count number.

count :

Return Code

ERR_NoError,

ERR_BoardNoInit

Example

See Demo Program 'AD_DEMO2.C' ,

‘AD_DEMO5.C’

C/C++ Library

5.24 _9112_AD_INT_Stop

@ Description

This function is used to stop the interrupt data transfer function. After

executing this function, the internal AD trigger is disable and the AD timer

is stopped. The function returns the number of the data which has been

transferred, no matter whether if the AD interrupt data transfer is stopped

by this function or by the _9112_AD_INT_Stop() itself.

@ Syntax

Visual C++ (Windows-95)

int W_9112_AD_INT_Stop(int card_number, int * count)

Visual Basic (Windows-95)

W_9112_INT_Stop(ByVal card_number As Long, count As Long) As

Long

C/C++ ( DOS)

int _9112_AD_INT_Stop(int card_number, int *count )

@ Argument :

card_number :

the card number of PCI-9112

count : the number of A/D data which has been transferred.

@ Return Code :

ERR_NoError

ERR_BoardNoInit

@ Example :

See Demo Program 'AD_DEMO2.C' , ‘AD_DEMO5.C’

5.25 _9112_AD_Timer

Description

This function is used to setup the Timer #1 and Timer #2.

Timer #1 & #2 are used as frequency divider for generating constant A/D

sampling rate dedicatedly. It is possible to stop the pacer trigger by

setting any one of the dividers as 0. Because the AD conversion rate is

limited due to the conversion time of the AD converter, the highest

sampling rate of the PCI-9112 can not exceed 100 KHz. The

multiplication of the dividers must be larger than 20.

C/C++ Library 61

Syntax

Visual C++ (Windows-95)

int W_9112_AD_Timer (int card_number, unsigned int c1, unsigned

int c2)

Visual Basic (Windows-95)

W_9112_Timer (ByVal card_number As Long, c1 As Long, c2 As Long)

As Long

C/C++ ( DOS)

int _9112_AD_Timer(int card_number, unsigned int c1 , unsigned

int c2 )

Argument

card_number :

c1 :

c2 :

the card number of PCI-9112

frequency divider of timer #1

frequency divider of timer #2

Note : the A/D sampling rate is equal to :

2MHz / (c1 * c2),

when c1 = 0 or c2 = 0, the pacer trigger will be stopped.

Return Code

ERR_NoError

ERR_BoardNoInit

ERR_InvalidTimerValue

Example

main()

{

int

Int

errCode;

baseAddr, irqNo;

_9112_Initial( CARD_1, &baseAddr, &irqNo);

/* Assume NoError when Initialize PCI-9112 */

_9112_AD_Timer(CARD_1,10 , 10 );

/* set AD sampling rate to 2MHz/(10*10) */

}

_9112_AD_Timer(CARD_1, 0 , 0 );

/* stop the pacer trigger */

C/C++ Library

5.26 _9112_TIMER_Start

Description

The Timer #0 on the PCI-9112 can be freely programmed by the users.

This function is used to program the Timer #0. This timer can be used as

frequency generator if internal clock is used. It also can be used as event

counter if external clock is used. All the 8253 mode is available. Please

refer to section5.4"Timer/Counter operation.

Syntax

Visual C++ (Windows-95)

int W_9112_TIMER_Start (int card_number, int timer_mode,

unsigned int c0)

Visual Basic (Windows-95)

W_9112_TIMER_Start(ByVal card_number As Long, timer_mode As

Long, c0 As Long) As Long

C/C++ ( DOS)

int _9112_TIMER_Start(int card_number, int timer_mode, unsigned

int c0 )

Argument

card_number :

timer_mode :

the card number of PCI-9112

the 8253 timer mode, the possible values are :

TIMER_MODE0, TIMER_MODE1,

TIMER_MODE2, TIMER_MODE3,

TIMER_MODE4, TIMER_MODE5.

the counter value of timer

c0 :

Return Code

ERR_NoError,

ERR_BoardNoInit

ERR_InvalidTimerMode, ERR_InvalidTimerValue

5.27 _9112_TIMER_Read

Description

This function is to read the counter value of the Timer #0.

Syntax

Visual C++ (Windows-95)

int W_9112_TIMER_Read (int card_number, unsigned int far *

counter_value)

Visual Basic (Windows-95)

W_9112_TIMER_Read (ByVal card_number As Long, counter_value As

Long) As Long

C/C++ (DOS)

int _9112_TIMER_Read (int card_number, unsigned int

*counter_value )

C/C++ Library 63

Argument :

card_number :

the card number of PCI-9112

counter_value : the counter value of the Timer #0

@ Return Code :

ERR_NoError,

ERR_BoardNoInit

5.28 _9112_TIMER_Stop

Description

This function is used to stop the timer operation. The timer is set to the

'One-shot' mode with counter value ' 0 '. That is, the clock output signal

will be set to high after executing this function.

Syntax

Visual C++(Windows-95)

int W_9112_TIMER_Stop (int card_number, unsigned int *

counter_value)

Visual Basic (Windows-95)

W_9112_TIMER_Stop (ByVal card_number As Long, counter_value As

Long) As Long

C/C++ (DOS)

int _9112_TIMER_Stop (int card_number, unsigned int

*counter_value )

Argument :

card_number :

the card number of PCI-9112

counter_value : the current counter value of the Timer #0

Return Code :

ERR_NoError

ERR_BoardNoInit

5.29 _9112_Alloc_DMA_Mem

Description

Contact Windows 95 system to allocate a block of contiguous memory for

DMA transfer. This function is only available in Windows 95 version.

Syntax

Visual C++(Windows-95)

int W_9112_Alloc_DMA_Mem (unsigned long buf_size, HANDLE *memID,

unsigned long *linearAddr)

Visual Basic (Windows-95)

W_9112_Alloc_DMA_Mem (ByVal buf_size As Long, memID As Long,

linearAddr As Long) As Long

C/C++ Library

Argument :

buf_size: Bytes to allocate. Please be careful, the unit of this

argument is BYTE, not SAMPLE.

memID:

If the memory allocation is successful, driver returns the ID

of that memory in this argument. Use this memory ID in

W_9112_AD_DMA_Startor W_9112_ContDmaStartfunction call.

linearAddr: The linear address of the allocated DMA memory. You can

use this linear address as a pointer in C/C++ to access the DMA data.

Return Code :

ERR_NoError

ERR_AllocDMAMemFailed

5.30 _9112_Free_DMA_Mem

Description

Deallocate a system DMA memory under Windows 95 environment. This

function is only available in Windows 95 version.

Syntax

Visual C++(Windows-95)

int W_9112_Free_DMA_Mem (HANDLE memID)

Visual Basic (Windows-95)

W_9112_Free_DMA_Mem (ByVal memID As Long) As Long

memID:

Argument :

The memory ID of the system DMA memory to deallocate.

Return Code :

ERR_NoError

5.32 _9112_Get_Sample

Description

For the language without pointer support such as Visual Basic,

programmer can use this function to access the index-th data in DMA

buffer. This function is only available in Windows 95 version.

Syntax

Visual C++(Windows-95)

int W_9112_Get_Sample (unsigned long linearAddr, unsigned index,

unsigned short *ai_data)

Visual Basic (Windows-95)

W_9112_Get_Sample (ByVal linearAddr As Long, ByVal idx As Long,

ai_data As Integer) As Long

C/C++ Library 65

Argument :

linearAddr: The linear address of the allocated DMA memory.

index:

index 0.

ai_data:

The index of the sample to retrieve. The first sample is with

Returns the sample retrieved.

Return Code :

ERR_NoError

C/C++ Library

Calibration

In data acquisition process, how to calibrate your measurement devices

to maintain its accuracy is very important. Users can calibrate the analog

input and analog output channels under the users' operating environment

for optimizing the accuracy. This chapter will guide you to calibrate your

PCI-9112 to an accuracy condition.

6.1 What do you need

Before calibrating your PCI-9112 card, you should prepare some

equipment’ s for the calibration:

Calibration program : Once the program is executed, it will guide

you to do the calibration. This program is included in the delivered

package.

A 5 1/2 digit multimeter (6 1/2 is recommended)

A voltage calibrator or a very stable and noise free DC voltage

generator.

Calibration 67

6.2 VR Assignment

There are five variable resistors (VR) on the PCI-9112 board to allow you

making accurate adjustment on A/D and D/A channels. The function of

each VR is specified as Table 6.1.

VR1

VR2

VR3

VR4

VR5

VR6

VR7

A/D bipolar offset adjustment

A/D full scale adjustment

D/A channel 1 full scale adjustment

D/A channel 2 full scale adjustment

A/D unipolar offset adjustment

D/A reference voltage adjustment

A/D programmable amplifier offset adjustment

Table 6.1 Function of VRs

6.3 A/D Adjustment

6.3.1 Bipolar Calibration

1. Set the analog input range as : +/- 5V, i.e. the gain = 1 and input

mode = Bipolar.

2. Short the A/D channel 0 (pin 1 of CN3) to ground (GND), and connect

the TP1 (+) and TP2 (-) with your DVM. Trim the variable resister VR7 to

obtain a value as close as possible to 0V.

3. Apply a +5V input signal to A/D channel 0, and trim the VR2 to obtain

reading between 4094~4095.

4. Apply a +0V input signal to A/D channel 0, and trim the VR1 to obtain

reading flickers between 2048~2049.

5. Repeat step 3 and step 4, adjust VR2 and VR1.

6.3.2 Unipolar Calibration

1. Set the analog input range as : 0 ~ 10 V, i.e. the gain = 1 and input

mode = Unipolar.

2. Short the A/D channel 0 (pin 1 of CN3) to ground (GND) and connect

TP1 (+) and TP2 (-) with your DVM. Trim the VR5 to -5V reading in the

DVM.

Calibration

6.4 D/A Adjustment

There are two steps to calibrate the analog output channels, D/A 1 and

D/A 2. The first step is to adjust the reference voltage, and the second

step is to adjust each channel of D/A.

6.4.1 Reference Voltage Calibration

1. Set reference voltage as -5V (the D/A reference voltage is selected

by JP3, see section 2.8).

2. Connect VDM (+) to CN3 pin-11 (V.REF) and VDM (-) to GND.

Trim the variable resister VR6 to obtain -5V reading in the DVM.

Note: If the reference voltage set as -10V, the connection is the same as

-5V, but the reading from DVM should be -10V.

6.4.2 D/A Channel Calibration

D/A CH1 calibration

1. Connect VDM (+) to CN3 pin-30 (AO1) and VDM (-) to A.GND.

2. Write the Digital value 0x0FFF into registers (BASE+ 10)

3. Trim the variable resister VR3 to obtain +5V reading in the DVM.

D/A CH2 calibration

1. Connect VDM (+) to CN3 pin-32 (AO2) and VDM (-) to A.GND.

2. Write the Digital value 0x0FFF into registers (Base + 14)

3. Trim the variable resister VR4 to obtain +5V reading in the DVM.

A calibration utility is supported in the software CD which is included in

the product package. The detailed calibration procedures and description

can be found in the utility. Users only need to run the software calibration

utility and follow the procedures. You will get the accurate measure data.

In normal condition, the PCI-9112 already calibrated by factor before it is

shipped out. So, users do not need to calibrate your PCI-9112 when you

get it.

Calibration 69

Software Utilities

The PCI-9112 is a PCI-based high performance multi-function data

acquisition card, which provides 16 single-ended analog or 8 differential

analog inputs and auto scan channel by hardware, two double-buffered

multiplexing analog outputs. In addition to analog I/O, 16 digital inputs and

outputs and three 16-bit timer/counter channels are also included in the

board.

The utility program in the software package includes System

Configuration, Calibration, and Functional testing. All the utilities are using

menu-driven operating mode based on windowing environment, so it is

very easy to operate and no more learning effort.

In addition to the Utility and C/C++, DLL Libraries, some demonstration

programs are also included; users can refer them and save a lot of

programming time and get some other benefits as well. Please refer the

Appendix A for details of the demo programs.

7.1 Software Utility

There are three functions provided by PCI-9112's utility software, they are

System Configuration, Calibration, and Functional Testing. This utility

software is designed by menu-driven based on windowing environment.

Not only the text messages are shown for operating guidance, but also

has the graphic to indicate you how to set right hardware configuration.

Software Utility

7.1.1 Running the Utility

After finishing the installation, you can execute the utility by typing as

follows :

C> cd \ADLINK\9112\DOS\UTIL

C> 9112UTIL

The 9112UTIL.EXE includes six functions:

1. Configuration

2. Calibration :

: Check the hardware setting of your PCI-9112.

Calibrate the A/D and D/A measurement

accuracy of your PCI-9112.

3. Software Trigger Testing:

Testing utility for software polling A/D, D/A and Digital I/O.

4. Interrupt Testing : Testing utility for interrupt A/D data transfer

mode.

5. DMA Testing

A/D data transfer mode.

6. Quit

Testing utility for DMA (bus-mastering)

: Exit the utility.

7.1.2 System Configuration

This function is used to guide you how to install the PCI-9112 card, and

set the right hardware configuration.

The top window shows the setting items that you have to set before using

the PCI-9112 card. The bottom window gives you a layout of PCI-9112;

the jumpers and DIP switch are shown on it. Whenever you change the

attribute of each setting, its corresponding jumper will be update

immediately. You could follow this indication to change the jumper setting

on your PCI-9112 board.

The following diagram will be displayed on the screen as you choose the

Configuration Setup function from main menu.

7.1.3 Calibration

This function is used to guide you how to calibrate the PCI-9112. The

calibration program serves as a useful test of the PCI-9112's A/D and D/A

functions and can aid in troubleshooting if problems arise.

Note : For an environment with frequently large changes of temperature

and vibration, a 3 months re-calibration interval is recommended.

For laboratory conditions, 6 months to 1 year is acceptable

Software Utility 71

When you choose the calibration function from the main menu list, a

diagram shown below is displayed on the screen, the upper window

shows the calibration items, such as DAC channel 1 or channel 2 full

range adjust, Gain Amplifier offset adjust. etc.

The bottom window shows the detailed procedures should be followed

when you proceed the calibration. The instructions will guide you to

calibrate each item step by step.

7.1.4 Functional Testing

This function is used to test multi-function of PCI-9112, it includes Digital

I/O testing, D/A testing, A/D testing, Timer Testing, and DMA testing.

When you choose the test function from the main menu list, a diagram

shown below is displayed on the screen, the upper window shows the

testing items, and the bottom window shows the testing results.

7.2 PCI SCAN Utility

A PCI bus devices scanning utility (PCI_SCAN.EXE) for DOS is included

the CD. This utility is to help user to trouble shooting the board. Please

refer to the “ software installation guide” for detailed information about how

to use this software.

Software Utility

Appendix A. Demo.

Programs

DOS Software:

In this software CD, there are 8 DOS demonstration programs are

provided. They could help you to program your application by using C

Language Library easily. The description of these programs are specified

as follows:

AD_DEMO1.C :

AD_DEMO2.C

A/D conversion uses software trigger

and program data transfer.

A/D conversion uses interrupt and

program data transfer.

AD_DEMO3.C :

AD_DEMO4.C :

A/D conversion uses DMA data transfer.

A/D conversion uses software trigger

and program data transfer.

( autoscan enable, muli-channel )

A/D conversion uses interrupt and

program data transfer.

AD_DEMO5.C

autoscan enable, muli-channel )

A/D conversion uses DMA data transfer.

autoscan enable, muli-channel )

Continue A/D converted by DMA

transfer

AD_DEMO6.C :

AD_DEMO5.C :

DA_DEMO.C :

DIO_DEMO.C :

D/A conversion

Read/Write data from digital input/output

channels

Windows 95 DLL:

There are several demonstration programs for Windows 95 DLL. They

could help you to program your application by using C/C++ or Visual

Basic Language to link with DLL library. You can learn how to program

and link with DLL library of PCO-9112.

Appendix A Demo Programs 73

The description of these programs are specified as follows:

Samples \sdk\9112\

9112util.exe

A/D conversion uses software trigger

and program data transfer. Visual

C/C++ program.

Samples \sdk\9112int\

9112int.exe

A/D conversion uses interrupt data

transfer. Visual C/C++ program.

Samples \sdk\9112dma\

9112dma.exe

A/D conversion uses DMA data

transfer. Visual C/C++ program.

Samples \sdk\9112cdma\

9112cdma.exe

A/D conversion uses DMA data

transfer

with

double-buffering

mechanism. Visual C/C++ program.

Samples \vb\9112\vb9112.e

A/D conversion uses software trigger

and program data transfer, D/A

conversion, and digital I/O. Visual

Basic program.

Samples\vb\9112int\

vb9112i.exe

A/D conversion uses interrupt data

transfer. Visual Basic program.

Samples\vb\9112dma\

vb9112d.exe

A/D conversion uses DMA data

transfer. Visual Basic program.

Appendix A Demo Programs

Product Warranty/Service

Seller warrants that equipment furnished will be free form defects in

material and workmanship for a period of one year from the confirmed

date of purchase of the original buyer and that upon written notice of any

such defect, Seller will, at its option, repair or replace the defective item

under the terms of this warranty, subject to the provisions and specific

exclusions listed herein.

This warranty shall not apply to equipment that has been previously

repaired or altered outside our plant in any way as to, in the judgment of

the manufacturer, affect its reliability. Nor will it apply if the equipment has

been used in a manner exceeding its specifications or if the serial number

has been removed.

Seller does not assume any liability for consequential damages as a

result from our products uses, and in any event our liability shall not

exceed the original selling price of the equipment.

The equipment warranty shall constitute the sole and exclusive remedy of

any Buyer of Seller equipment and the sole and exclusive liability of the

Seller, its successors or assigns, in connection with equipment purchased

and in lieu of all other warranties expressed implied or statutory, including,

but not limited to, any implied warranty of merchant ability or fitness and

all other obligations or liabilities of seller, its successors or assigns.

The equipment must be returned postage-prepaid. Package it securely

and insure it. You will be charged for parts and labor if you lack proof of

date of purchase, or if the warranty period is expired.

Product Warranty/Service

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