Measurement PCM-DAS16x16 User Manual

PCM-DAC02

PCMCIA Dual Analog Outputs

User’s Manual

Revision 3

August, 2001

MEGA-FIFO, the CIO prefix to data acquisition board model numbers, the PCM prefix to data
acquisition board model numbers, PCM-DAS08, PCM-D24C3, PCM-DAC02, PCM-COM422,
PCM-COM485, PCM-DMM, PCM-DAS16D/12, PCM-DAS16S/12, PCM-DAS16D/16,
PCM-DAS16S/16, PCI-DAS6402/16, Universal Library, InstaCal, Harsh Environment
Warranty and Measurement Computing Corporation are registered trademarks of Measurement
Computing Corporation.

IBM, PC, and PC/AT are trademarks of International Business Machines Corp. Windows is a
trademark of Microsoft Corp. All other trademarks are the property of their respective owners.

Information furnished by Measurement Computing Corp. is believed to be accurate and
reliable. However, no responsibility is assumed by Measurement Computing Corporation
neither for its use; nor for any infringements of patents or other rights of third parties, which
may result from its use. No license is granted by implication or otherwise under any patent or
copyrights of Measurement Computing Corporation.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system,
or transmitted, in any form by any means, electronic, mechanical, by photocopying, recording

or otherwise without the prior written permission of Measurement Computing Corporation.

Notice

Measurement Computing Corporation does not authorize any
Measurement Computing Corporation product for use in life support
systems and/or devices without the written approval of the President of
Measurement Computing Corporation Life support devices/systems are
devices or systems which, a) are intended for surgical implantation into
the body, or b) support or sustain life and whose failure to perform can
be reasonably expected to result in injury. Measurement Computing
Corp. products are not designed with the components required, and are
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(C) Copyright 2001, Measurement Computing Corporation

HM PCM-DAC02.lwp

Table of Contents

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11 INTRODUCTION
22 INSTALLATION

22.1 INSTALL InstaCal™ SOFTWARE

22.2 INSTALL THE PCMCIA CARD
33 INTERFACING

33.1 PCM-DAC02 CONNECTOR

43.2 CONNECTING DEVICES TO THE ANALOG OUTPUTS

43.3 OUTPUT VOLTAGE RANGES

43.4 SIGNAL CONNECTION

53.5 EXTERNAL INTERRUPT INPUT

53.6 DIGITAL INPUTS & OUTPUTS
64 PROGRAMMING & APPLICATIONS

64.1 PROGRAMMING LANGUAGES

64.2 PACKAGED APPLICATIONS PROGRAMS
75 CALIBRATION
86 I/O ADDRESS MAP & REGISTER FUNCTIONS

86.1 CONTROL REGISTERS
117 SPECIFICATIONS
11POWER CONSUMPTION
11ANALOG OUTPUT
12DIGITAL I/O
12ENVIRONMENTAL
138 PCM-C15-10-INCH CABLE

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1 INTRODUCTION

(

)

P2 CONNECTOR (15 PIN)

The PCM-DAC02 is an analog output control board for IBM PC compatible
computers with PCMCIA type slots. The heart of the board is a dual 12-bit digital-to­analog converter. Analog voltage signals are generated by the D/A from registers.
Control of I/O operations is done by the Field Programmable Gate Array (FPGA) on
the board (Figur e 1-1). Double-bufferi ng of the output registers permit simultaneous
output changes.

Ranges of the two analog outputs are individually programmable for bipolar ±5V or
±10V, or unipolar 0 to 5V or 0 to 10V.

Eight bi-directional digital I/O lines arranged in two, 4-bit p orts p ro vide the capab ility
of sensing and controlling discrete events. The ports can be programmed to be eight
inputs, eight outputs, or four inputs and four outputs.

HOST BUS ADAPTER

PCMCIA BUS CONNECTOR P1

68-PIN

DATA

BUS

ATTRIBUTE

MEMORY

ADDRESS

BUS

D/A

CONVERTER

12-BIT

D/A

CONVERTER

12-BIT

CONTROLLER

FPGA

PCM-DAC02

Figure 1-1. PCM-DAC02 Block Diagram

DIGITAL

I/O

PORT

4 BITS

DIGITAL

I/O

PORT

4 BITS

1

2 INSTALLATION

2.1 INSTALL InstaCal™ SOFTWARE

InstaCal is the installation, calibration and test software supplied with the board.

Refer to the Extended Software Installation Manual to install InstaCal.

2.2 INSTALL THE PCMCIA CARD

Your PCM card is completely plug and play. There are no switches or jumpers to set
prior to installation in your computer. Simply follow the steps shown below to install
your PCM hardware.

1. Insert the card into a free PC Card/PCMCIA type II or III slot. You do not
have to turn the computer off. The system is designed for power on
installation. Shown here is a PCM card case looking into the connector
which is inserted into the PCMCIA slot of your computer. The KEY helps to
insure that the PCM board is inserted in the correct orientation.

2. If the appropriate driver is already loaded on the PC, the card should be
detected, recognized, and configured by Windows and you should hear an
insertion beep. To verify the card has been recognized, go to Control
Panel\System\Device Manager and the card should now appear under "DAS
Component."

2