Omega 1002 User Manual

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User’s Guide

OME-PCI-1002

PCI Data Acquisition Board
Hardware Manual

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The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts
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WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.

Table of Contents

1. INTRODUCTION ................................................................................................................................. 5

1.1 GENERAL DESCRIPTION ............................................................................................................ 5

1.2 THE BLOCK DIAGRAMS................................................................................................................. 6

1.3 FEATURES .................................................................................................................................... 7

1.4 SPECIFICATIONS ........................................................................................................................... 8

1.4.1 Power Consumption ........................................................................................................... 8

1.4.2 Analog Inputs....................................................................................................................... 8

1.4.3 D/I and D/O ............................................................................................................................ 9

1.4.4 A/D Trigger Methods ............................................................................................................ 9

1.4.5 Interrupt Channel ................................................................................................................ 10

1.4.6 Programmable Timer/Counter ........................................................................................10

1.5 APPLICATIONS ............................................................................................................................ 11

1.6 PRODUCT CHECK LIST ............................................................................................................... 12

2. HARDWARE CONFIGURATION ................................................................................................... 13

2.1 BOARD LAYOUT ........................................................................................................................ 13

2.2 JUMPER SETTING ....................................................................................................................... 14

2.3 AD CALIBRATION...................................................................................................................... 14

2.4 SYSTEM BLOCK .......................................................................................................................... 15

2.5 DAUGHTER BOARDS.................................................................................................................... 16

2.5.1 OME-DB-1825....................................................................................................................... 16

2.5.2 OME-DB-8225..................................................................................................................... 16

2.5.3 OME-DB-37......................................................................................................................... 16

2.5.4 OME- DN-37 ........................................................................................................................16

2.5.5 OME-DB-16P Isolated Input Board...................................................................................... 17

2.5.6 OME-DB-16R Relay Board ................................................................................................. 18

2.6 ANALOG INPUT SIGNAL CONNECTION......................................................................................... 19

2.7 JUMPER SETTING ......................................................................................................................... 23

2.8 THE CONNECTORS ..................................................................................................................... 24

3. I/O REGISTERS ................................................................................................................................ 26

3.1 HOW TO FIND THE I/O ADDRESS................................................................................................ 26

3.2 THE I/O ADDRESS MAP ............................................................................................................... 28

3.2.1 Section 1............................................................................................................................... 29

3.2.2 Section 2............................................................................................................................... 30

4. FUNCTION OPERATION ................................................................................................................35

4.1 DIGITAL I/O ............................................................................................................................... 35

3

4.2 THE 8254 TIMER ........................................................................................................................36

4.3 THE A/D TRIGGER..................................................................................................................... 36

4.4 A/D CONVERSION ....................................................................................................................... 38

4.4.1 A/D Conversion Trigger Modes............................................................................................. 40

4.4.2 A/D Transfer Modes............................................................................................................... 40

4.4.3 Software trigger and Polling technique................................................................................. 41

5. SOFTWARE AND DEMO PROGRAM .......................................................................................... 44

6. DIAGNOSTIC PROGRAM ..............................................................................................................45

6.1 POWER-ON PLUG & PLAY TEST ................................................................................................45

6.2 DRIVER PLUG & PLAY TEST ...................................................................................................... 45

6.3 D I/O TEST ..................................................................................................................................46

6.4 A/D TEST................................................................................................................................... 46

4

1. Introduction

The OME-PCI-1002H/L card provides 12-bit ADC and two 16-bit digital I/O ports.

1.1 General Description

The OME-PCI-1002L and OME-PCI-1002H are high performance multifunction

cards, with A/D and digital I/O for PC and compatible computers in a 5V PCI slot. This

family has the following features: one 12-bit 110K A/D converter, 16 channels D/I, 16

channels D/O, programmable interrupt source and true “Plug and Play” support. The

OME-PCI-1002H/L provides 32 single-ended analog inputs or 16 differential analog

inputs, which are jumper selectable. The OME-PCI-1002L is the low-gain model

equipped with a high speed PGA (programmable gain amp.) with programmable gain

control of 1,2,4,8. The OME-PCI-1002H is the high-gain model equipped with a high-

gain/high-resolution PGA with programmable gain control of 1,10,100,1000. There are 16

channels of TTL compatible digital output and 16 channels of TTL compatible digital

input. This series provides three programmable trigger methods: software trigger, pacer

trigger and external trigger. The external trigger can be configured as a post-trigger, pre-

trigger or external pacer trigger. There are also several selectable interrupt sources: A/D

conversion interrupt, pacer interrupt and external interrupt. This multifunction card also

provides an A/D buffer and a data transfer rate of 2.7M words per second in non-burst

mode. This powerful A/D control mechanism offers flexibility for various applications

while minimizing system I/O overhead. The OME-PCI-1002 series is fully “Plug and

Play” compatible and can operate at the full speed of the PCI bus (33MHz). This

important feature makes the OME-PCI-1002 a high performance, cost effective solution

for most data acquisition applications.

5

1.2 Block Diagram

X86 System

S

B

U

PCI

PCI Interface System

Local System Controller

Interrupt

16 bits DI
16 bits DO

A/D control logic

Pacer

Generator

EPROM

Status

Control

Digital Inputs

Digital Outputs

4MHz

A/D

Data

Buffer

12-bit A/D
Converter

MuxGain

Figure 1-1. The OME-PCI-1002 series block diagram.

6

Analog Inputs

1.3 Features

• Bus: 5V PCI (Peripherals Component Interface) bus.

1. A/D:

• One A/D converter with maximum 110K samples/second.

• 32 single-ended / 16 differential programmable inputs for OME-PCI-1002L/H.

• Three different A/D trigger methods.

• Three different external trigger methods.

• Programmable gain control, programmable offset control.

2. DIO:

• 16 digital inputs and 16 digital outputs (TTL compatible).

• High-speed data transfer rate: 2.7M word/sec (non-burst mode).

3. Timer:

• One 16-bit machine independent timer for software (Timer 2).

• Two 16-bit pacer timer for A/D converter and interrupt (Timer0, Timer1).

7

1.4 Specifications

1.4.1 Power Consumption

• +5V @ 960mA maximum, OME-PCI-1002L/H

• Operating temperature : 0°C to +70°C

1.4.2 Analog Inputs

• Channels: ( software programmable )

• 32 single-ended inputs/16 differential inputs, jumper selectable.

• Gain control : ( software programmable )

OME-PCI-1002H, Gains - 1, 10, 100, 1000.

OME-PCI-1002L, Gains - 1, 2, 4, 8.

• Input signal range :

OME-PCI-1002L: Bipolar

Range: ±10, ±5V, ±2.5V, ±1.25V

OME-PCI-1002H: Bipolar

Range: ±10, ±1V, ±0.1V, ±0.01V

• Input current: 250 nA max (125 nA typical) at 25 °C.

• Over voltage: continuous single channel to

• Input impedance:

OME-PCI-1002H/L: 10

10

Ω // 6pF

70Vp-p

8

1.4.3 D/I and D/O

• Channels: 16 channels DI, 16 channels DO

• DO: Digital output port

Output level: TTL compatible

Output current: Ioh = 0.5mA, Iol = 8mA

• DI: Digital input port

Input level: TTL compatible

Input current: 50uA (max)

1.4.4 A/D Trigger Methods

• Trigger-methods :

1. Software trigger

2. Pacer trigger: 16-bit programmable timer/counter

3. External trigger: Pre-trigger, Post-trigger, external Pacer trigger

Pacer or software trigger

External trigger

CHn

CHn

Start End

Normal trigger mode

External trigger

t

Start End

Post-trigger mode

External trigger

CHn

CHn

External pacer trigger mode

t

End Start

Start End

Pre-trigger mode

t

t

Figure 1-2. Trigger methods of OME-PCI-1002.

9

1.4.5 Interrupt Channel

gger

• Interrupt: INTA (Automatically assigned by PCI-controller).

• Enable/Disable: Via PCI control register and add-on control register.

• Interrupt source: (Selected by on-board control register)

1. A/D conversion interrupt

2. Pacer 0 interrupt (Timer 0)

3. Pacer 1 interrupt (Timer 1)

4. External interrupt

1.

A/D busy

End of Conversion

IRQ

3.

Pacer 1

Falling edge of Pacer 1

IRQ

Figure 1-3. Programmable interrupt source.

2.

4.

Pacer 0

IRQ

External

Trigger

IRQ

Falling edge of Pacer 0

Falling edge of

External tri

1.4.6 Programmable Timer/Counter

• Type: 82C54-8 programmable timer/counter.

• Timers:

1. Timer 0 for Pacer trigger and interrupt

2. Timer 1 for External trigger and interrupt

3. Timer 2 for software machine independent timer

• Input Clock: 4 MHz.

10

1.5 Applications

z Signal analysis.

z FFT & frequency analysis.

z Transient analysis.

z Speech analysis.

z Temperature monitor.

z Vibration analysis.

z Energy management.

z Industrial and laboratory measurement and control.

Figure 1-4. OME-PCI-1002 series multifunction cards.

Signal Analysis

Temperature

Frequency

Other Laboratory

use

Multi-I/O signals

OME-PCI-1002

series

PCI interface

Single-task or multitask

Process Control

Transition

Speech Analysis

Vibration

Process Monitor

11

1.6 Product Check List

In addition to this manual, the package includes the following items:

• One OME-PCI-1002 card

• One CD-ROM

Release Notes

The release notes contain the latest information updates. We strongly suggest that you

read them first.

12

2. Hardware Configuration

2.1 Board Layout

OME-PCI-1002L

CON3

JP1

VR1

VR3

VR2

CON2CON1

Figure 2-1. OME-PCI-1002 board layout.

13

2.2 Jumper Setting

p

There is only one jumper on the OME-PCI-1002. JP1 is used to select

the analog input type. For single-ended inputs, users should connected pin 1, 3

and pin 2, 4. For differential inputs, Pin 3, 5 and Pin 4, 6 should be connected.

JP1 JP1

1

5 6

Single-ended

Inputs (Default)

2

1

5

Differential

2.3 A/D Calibration

• A/D Calibration for OME-PCI-1002 card

Step 1: Apply +10V to channel 0.

In

2

6

uts

Step 2: Apply +0V to channel 1.

Step 3: Apply -10V to channel 2.

Step 4: Run DEMO6.EXE.

Step 5: Adjust VR1 until channel 0 = fff or ffe

Step 6: Adjust VR2 until channel 1 = 800 or 801

Step 7: Adjust VR3 until channel 2 = 000 or 001

Step 8: Repeat Step 4 & Step 5 & Step 6 until all read

properly.

14

VR1, VR2, VR3

r

2.4 System Block Diagram

D/I

D/O

8254 Timer

A/D Buffer

Data

PCI

Interface

Controller

Ad

NVRA

controller

PCI BUS

Interrupt

controller

Dispatch

External Trigger

Figure 2-2. OME-PCI-1002 System Function Block.

A/D

Trigger

Logic

A/D

Converter

Multiplexers,

Gain Amp.

Scale Adj.

15