Keithley DAS-1700 Series User manual

Keithley DAS-1700 Series
Using DriverLINX with Your
Hardware
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Information in this document is subject to change without notice. The software
described is this document is furnished under a license agreement. The software may
be used or copied only in accordance with the terms of the agreement.
SCIENTIFIC SOFTWARE TOOLS, INC. SHALL NOT BE LIABLE FOR ANY
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RELATED TO
THE USE OF THIS PRODUCT. THIS PRODUCT IS NOT DESIGNED WITH
COMPONENTS OF A LEVEL OF RELIABILITY SUITABLE FOR USE IN LIFE
SUPPORT OR CRITICAL APPLICATIONS.
This document may not, in whole or in part, be copied, photocopied, reproduced,
translated or reduced to any electronic medium or machine readable form without
prior written consent from Scientific Software Tools, Inc.
Keithley DAS-1700 Series: Using DriverLINX with Your Hardware
Copyright 1999 by Scientific Software Tools, Inc.
All rights reserved.
First Printing.
SST 27-0599-1
DriverLINX, SSTNET, and LabOBJX are registered trademarks and
DriverLINX/VB is a trademark of Scientific Software Tools, Inc.
MetraByte is a trademark of Keithley Instruments, Inc.
Microsoft and Windows are registered trademarks and Visual C++ and Visual Basic
are trademarks of Microsoft Corporation.
Borland is a registered trademark and Borland C++ and Delphi are trademarks of
Borland International, Inc.
All other brand and product names are trademarks or registered trademarks of their
respective companies.
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Keithley DAS-1700 Series Contents •3
Contents
Preface 5
Software License and Software Disclaimer of Warranty............................................................5
About DriverLINX.....................................................................................................................7
About This User’s Guide ...........................................................................................................7
Conventions Used in This Manual.............................................................................................9
Configuring the DAS-1700 Series 11
Introduction..............................................................................................................................11
Configure DriverLINX Device Dialog.....................................................................................11
Device Subsystem Page.............................................................................................13
Analog Input Subsystem Page ...................................................................................19
Analog Output Subsystem Page.................................................................................20
Digital Input Subsystem Page....................................................................................22
Digital Output Subsystem Page .................................................................................24
Counter/Timer Subsystem Page.................................................................................26
Using the DAS-1700 Series with DriverLINX 27
Introduction..............................................................................................................................27
DriverLINX Hardware Model for DAS-1700 Series...............................................................27
DriverLINX Subsystems............................................................................................27
DriverLINX Modes ...................................................................................................28
DriverLINX Operations and Events ..........................................................................30
Logical Channels .......................................................................................................32
Buffers .......................................................................................................................32
Connecting Signals to the DAS-1700 Series............................................................................33
Analog Input Subsystem Signals................................................................................33
Analog Output Subsystem Signals.............................................................................35
Digital Input Subsystem Signals................................................................................36
Digital Output Subsystem Signals..............................................................................36
Counter/Timer Subsystem Signals.............................................................................36
Device Subsystem....................................................................................................................37
Device Modes............................................................................................................37
Device Operations .....................................................................................................37
Analog Input Subsystem ..........................................................................................................38
Analog Input Modes ..................................................................................................38
Analog Input Operations............................................................................................38
Analog Input Pacing, Triggering and Gating Options................................................38
Analog Input Timing Events......................................................................................40
Analog Input Start Events..........................................................................................49
Analog Input Stop Events..........................................................................................51
Analog Input Channels...............................................................................................53
Analog Input Expansion Channels.............................................................................58
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4 •Contents Keithley DAS-1700 Series
Analog Input Buffers .................................................................................................60
Analog Input Data Coding.........................................................................................61
Analog Input Messages..............................................................................................63
Analog Output Subsystem........................................................................................................64
Analog Output Modes................................................................................................64
Analog Output Operations.........................................................................................64
Analog Output Pacing, Triggering and Gating Options.............................................64
Analog Output Timing Events...................................................................................66
Analog Output Start Events .......................................................................................72
Analog Output Stop Events........................................................................................76
Analog Output Channels............................................................................................77
Analog Output Channel Gains ...................................................................................79
Analog Output Buffers...............................................................................................80
Analog Output Data Coding ......................................................................................81
Analog Output Messages...........................................................................................82
Digital Input Subsystem...........................................................................................................83
Digital Input Modes...................................................................................................83
Digital Input Operations ............................................................................................83
Digital Input Pacing, Triggering and Gating Options................................................83
Digital Input Timing Events ......................................................................................84
Digital Input Start Events...........................................................................................86
Digital Input Stop Events...........................................................................................86
Digital Input Channels...............................................................................................87
Digital Input Buffers..................................................................................................89
Digital Input Messages ..............................................................................................90
Digital Output Subsystem ........................................................................................................92
Digital Output Modes ................................................................................................92
Digital Output Operations..........................................................................................92
Digital Output Pacing, Triggering and Gating Options..............................................92
Digital Output Timing Events....................................................................................93
Digital Output Start Events........................................................................................96
Digital Output Stop Events........................................................................................96
Digital Output Channels.............................................................................................96
Digital Output Buffers ...............................................................................................99
Digital Output Messages..........................................................................................100
Counter/Timer Subsystem......................................................................................................101
Uninstalling DriverLINX 103
How do I uninstall DriverLINX? ...........................................................................................103
Troubleshooting 105
Solving Problems...................................................................................................................105
Solving Problems Installing Drivers........................................................................105
Solving Problems Configuring the Drivers..............................................................105
Solving Problems Loading Drivers..........................................................................106
Generating a DriverLINX Configuration Report ...................................................................109
What is in the Report? .............................................................................................109
How do I Generate the Report? ...............................................................................109
Glossary of Terms 110
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Keithley DAS-1700 Series Preface •5
Preface
Software License and Software Disclaimer of Warranty
This is a legal document which is an agreement between you, the Licensee, and Scientific Software Tools, Inc. By opening this
sealed diskette package, Licensee agrees to become bound by the terms of this Agreement, which include the Software License and
Software Disclaimer of Warranty.
This Agreement constitutes the complete Agreement between Licensee and Scientific Software Tools, Inc. If Licensee does not
agree to the terms of this Agreement, do not open the diskette package. Promptly return the unopened diskette package and the other
items (including written materials, binders or other containers, and hardware, if any) that are part of this product to Scientific Software
Tools, Inc. for a full refund. No refunds will be given for products that have opened disk packages or missing components.
Licensing Agreement
Copyright. The software and documentation is owned by Scientific Software Tools, Inc. and is protected by both United States
copyright laws and international treaty provisions. Scientific Software Tools, Inc. authorizes the original purchaser only (Licensee) to
either (a) make one copy of the software solely for backup or archival purposes, or (b) transfer the software to a single hard disk only.
The written materials accompanying the software may not be duplicated or copied for any reason.
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Tools, Inc. and a valuable trade secret. Licensee agrees to use the software only for the intended use under this License, and shall not
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not to reverse engineer, decompile or disassemble any part of the software.
Unauthorized copying of the software, including software that has been modified, merged, or included with other software, or of the
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take all reasonable steps to protect Scientific Software Tools’ software from theft, disclosure or use contrary to the terms of the License.
License. Scientific Software Tools, Inc. grants the Licensee only a non-exclusive right to use the serialized copy of the software on
a single terminal connected to a single computer. The Licensee may not network the software or use it on more than one computer or
computer terminal at the same time.
Term. This License is effective until terminated. This License will terminate automatically without notice from Scientific Software
Tools, Inc. if Licensee fails to comply with any term or condition of this License. The Licensee agrees upon such termination to return or
destroy the written materials and all copies of the software. The Licensee may terminate the agreement by returning or destroying the
program and documentation and all copies thereof.
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6 •Preface Keithley DAS-1700 Series
Limited Warranty
Scientific Software Tools, Inc. warrants that the software will perform substantially in accordance with the written materials and that
the program disk, instructional manuals and reference materials are free from defects in materials and workmanship under normal use
for 90 days from the date of receipt. All express or implied warranties of the software and related materials are limited to 90 days.
Except as specifically set forth herein, the software and accompanying written materials (including instructions for use) are provided
“as is” without warranty of any kind. Further, Scientific Software Tools, Inc. does not warrant, guarantee, or make any representations
regarding the use, or the results of the use, of the software or written materials in terms of correctness, accuracy, reliability, currentness,
or otherwise. The entire risk as to the results and performance of the software is assumed by Licensee and not by Scientific Software
Tools, Inc. or its distributors, agents or employees.
EXCEPT AS SET FORTH HEREIN, THERE ARE NO OTHER WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH
RESPECT TO THE SOFTWARE, THE ACCOMPANYING WRITTEN MATERIALS, AND ANY ACCOMPANYING HARDWARE.
Remedy. Scientific Software Tools’ entire liability and the Licensee’s exclusive remedy shall be, at Scientific Software Tools’ option,
either (a) return of the price paid or (b) repair or replacement of the software or accompanying materials. In the event of a defect in
material or workmanship, the item may be returned within the warranty period to Scientific Software Tools for a replacement without
charge, provided the licensee previously sent in the limited warranty registration board to Scientific Software Tools, Inc., or can furnish
proof of the purchase of the program. This remedy is void if failure has resulted from accident, abuse, or misapplication. Any
replacement will be warranted for the remainder of the original warranty period.
NEITHER SCIENTIFIC SOFTWARE TOOLS, INC. NOR ANYONE ELSE WHO HAS BEEN INVOLVED IN THE CREATION,
PRODUCTION, SALE OR DELIVERY OF THIS PRODUCT SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL,
OR INCIDENTAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF
BUSINESS INFORMATION AND THE LIKE) ARISING OUT OF THE USE OF OR THE INABILITY TO USE SUCH PRODUCT EVEN
IF SCIENTIFIC SOFTWARE TOOLS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME
JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL
DAMAGES, OR LIMITATIONS ON DURATION OF AN IMPLIED WARRANTY, THE ABOVE LIMITATIONS MAY NOT APPLY TO
LICENSEE.
This agreement is governed by the laws of the Commonwealth of Pennsylvania.
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Keithley DAS-1700 Series Preface •7
About DriverLINX
Welcome to DriverLINXfor MicrosoftWindows, the high-performance real-
time data-acquisition device drivers for Windows application development.
DriverLINX is a language- and hardware-independent application programming
interface designed to support hardware manufacturers’ high-speed analog, digital,
and counter/timer data-acquisition boards in Windows. DriverLINX is a multi-user
and multitasking data-acquisition resource manager providing more than 100 services
for foreground and background data acquisition tasks.
Included with your DriverLINX package are the following items:
•The DriverLINX API DLLs and drivers supporting your data-
acquisition hardware
•Analog I/O Panel, a DriverLINX program that verifies the installation
and configuration of DriverLINX for your analog input/output board
and demonstrates several virtual bench-top instruments
•Source code for the sample programs
•The DriverLINX Application Programming Interface files for your
compiler
•DriverLINX On-line Help System
•DriverLINX 4.0 Installation and Configuration Guide
•DriverLINX Analog I/O Programming Guide
•DriverLINX Technical Reference Manual
•Supplemental Documentation on DriverLINX and your data-acquisition
hardware
About This User’s Guide
The purpose of this manual is to help you quickly learn how to configure and use the
hardware features of Keithley’s DAS-1700 Series boards with DriverLINX.
•For help installing and configuring your hardware and DriverLINX,
please see the manual that accompanied your hardware and the
DriverLINX 4.0 Installation and Configuration Guide for your version
of Windows.
•For more information on the DriverLINX API, please see the
DriverLINX Technical Reference Manual.
•For additional help programming your board, please examine the source
code examples on the Distribution Disks.
This manual contains the following chapters:
Configuring the DAS-1700 Series
Shows how to configure the DAS-1700 Series using the Configure DriverLINX
Device dialog box.
Using the DAS-1700 Series with DriverLINX
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8 •Preface Keithley DAS-1700 Series
Shows how to set up DriverLINX with the Edit Service Request dialog box to use
DAS-1700 Series hardware features.
Uninstalling DriverLINX
Describes how to remove DriverLINX hardware drivers and other files.
Troubleshooting
Gives troubleshooting tips for installing, configuring, and loading DriverLINX
drivers.
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Keithley DAS-1700 Series Preface •9
Conventions Used in This Manual
The following notational conventions are used in this manual:
•A round bullet (•) identifies itemized lists.
•Numbered lists indicate a step-by-step procedure.
•DriverLINX Application Programming Interface and Windows macro
and function names are set in bold when mentioned in the text.
•DriverLINX indicates the exported function name of the device driver
DLL while DriverLINX indicates the product as a whole.
•DriverLINX Application Programming Interface identifiers, menu
items, and Dialog Box names are italicized when mentioned in the text.
•Italics are used for emphasis.
•Source code and data structure examples are displayed in Courier
typeface and bounded by a box with a single line.
Code
•A box with a double line bound tables of information.
Tables
Concept •Important concepts and notes are printed in the left margin.
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Keithley DAS-1700 Series Configuring the DAS-1700 Series •11
Configuring the DAS-1700 Series
Introduction
The installation program provides general instructions for installing and configuring
DriverLINX. This manual explains the steps and special features that apply to
Keithley’s DAS-1700 Series boards.
Installing and configuring DriverLINX for a Keithley DAS-1700 Series board
requires three steps:
1. Install DriverLINX. Follow the instructions given by the installation
program. The Read Me First instructions explain the components and
drivers you can install.
2. Configure DriverLINX. This creates a Logical Device, which stores
configuration information for your board. See “Configure DriverLINX
Device Dialog” on page 11 for configuration options specific to a
Keithley DAS-1700 Series model.
3. Install your DAS-1700 hardware. Follow the instructions in your
hardware manual.
After configuring DriverLINX, installing your board and restarting Windows, reopen
the DriverLINX Configuration Panel to make sure that DriverLINX loaded the
Logical Device for your board. If the Logical Device is not loaded, the Event Log
may have a message from the driver that explains why. You can check the Event Log
using the DriverLINX Event Viewer on the Windows Start Menu.
Configure DriverLINX Device Dialog
DriverLINX uses a standardized configuration protocol for all data-acquisition
hardware. Configuration assigns a port address, interrupt resources and a
DriverLINX Logical Device number to a specific DAS-1700 Series board in your
computer.
The installation program automatically starts the DriverLINX Configuration Panel.
To start it now, use the shortcut on the Windows Start Menu.
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12 •Configuring the DAS-1700 Series Keithley DAS-1700 Series
When you click the Configure… button on the DriverLINX Configuration Panel,
DriverLINX displays the Configure DriverLINX Device dialog. The dialog has a
page for each subsystem on a Keithley DAS-1700 Series model. The following
sections describe your choices in configuring DriverLINX to work with your board.
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Keithley DAS-1700 Series Configuring the DAS-1700 Series •13
Device Subsystem Page
Use the Device subsystem page to tell DriverLINX the model name, address and,
optionally, the expansion accessories connected to your DAS-1700 Series board.
Vendor
The Vendor property displays “Keithley MetraByte” It is a read-only property.
Device
The Device property designates the Logical Device you are configuring. It is a read-
only property. To change it, first save (OK) or quit (Cancel) the current
configuration. Then select or create a new Logical Device using the DriverLINX
Configuration Panel.
Model
The Model property selects or indicates the hardware model of the board you’re
configuring.
Windows NT
Select one of the following models:
DAS-1701ST
DAS-1702ST
DAS-1702HR
DAS-1701AO
DAS-1702AO
DAS-1701ST-DA
DAS-1702ST-DA
DAS-1702HR-DA
Windows 95/98
Under Windows 95/98, DriverLINX displays the model you chose during
installation. To install a different model, cancel the configuration and run Add New
Hardware from the Windows Control Panel.
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14 •Configuring the DAS-1700 Series Keithley DAS-1700 Series
Address
The Address property records the I/O port address for the board. The default address
used by DriverLINX is 0x300 hexadecimal or 768 decimal.
The DAS-1700 has a 6-bit DIP switch that sets its base address. Each switch
corresponds to a binary digit in the address. When a switch is up, or in the ON
position, its digit is 0. When it’s down, its digit is 1.
The switches select the value of the 1st to the 6th digits. The 7th to the 10th digits of the
address are 0. That is, there are four zeros to the right of the bits represented by the
switches.
For example, the following DIP switch shows the setting for 11 0000 0000
(0x300 hexadecimal or 768 decimal).
Windows NT
Enter your board’s base I/O address. Note: you need a block of sixteen free
addresses. AO models use an additional block of ten addresses starting at
base + 0x400.
Windows 95/98
Under Windows 95/98, Add New Hardware automatically selects an appropriate
address. To change the setting, see “Using the Windows 95/98 Device Manager” on
page 17.
Detect
The Detect property enables and disables DriverLINX’s hardware detection and
testing algorithms. For maximum system reliability, always leave this check-box
marked.
Calibrate
The Calibrate property enables and disables hardware auto-calibration. This option is
grayed-out for the DAS-1700 Series because it does not support automatic
calibration.
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Keithley DAS-1700 Series Configuring the DAS-1700 Series •15
Special…
The Special… button displays the following dialog box of DAS-1700 Series-specific
configuration options:
Common-mode reference
The DAS-1700 has two grounding options for single-ended analog inputs. They
determine the ground reference for the ADC input amplifier.
•LL GND — references the analog ground connection.
•U_CM MD — references the user-common mode ground connection.
Use the U_CM MD setting to eliminate ground loops. See your DAS-1700 User’s
Guide for more details.
Number of EXP-1800s
You can expand the number of single-ended analog input channels connected to your
DAS-1700 board by using one to sixteen EXP-1800 expansion boards. Each EXP-
1800 is 1-to-16 multiplexer that replaces one onboard channel with sixteen expansion
channels. Configure your DriverLINX Logical Device to use the additional channels
by entering the number of EXP-1800s here. See “Analog Input Expansion Channels”
on page 58 for details on accessing multiplexer channels.
Simultaneous sample and hold configuration
You can provide for simultaneous analog input sampling using external Simultaneous
Sample and Hold (SSH-8) units. A DAS-1700 can have up to two SSH-8 units. In the
Configure DAS-1700 Options dialog box, enter the number of SSH-8s connected.
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16 •Configuring the DAS-1700 Series Keithley DAS-1700 Series
For each SSH-8 unit, select its number in the SSH # list box and enter the following
configuration parameters:
•Base channel — Each SSH-8 replaces 8 DAS-1700 channels
determined by which accessory and SSH-8 connectors you use and the
offset jumper settings on the SSH-8. You can connect two SSH-8 units
to one accessory connector by daisy chaining them together using the
connectors inside the units. See the SSH-8 User’s Guide for details.
Select the base channel corresponding to the connectors you are using
for this SSH-8 unit:
Accessory Base Channel
Connector Directly
connected
SSH-8
Daisy-chain
connected
SSH-8
STA-1800U
J3 0 0
•Channel offset — click on an SSH-8 channel in the list and then select
the channel offset that corresponds to the position of the Output
Channel Jumper on the SSH-8. The list displays the number of the
DAS-1700 channel that the SSH-8 channel replaces.
Usually, you would configure all channels on a directly connected SSH-
8 to the lower offset channels (0-7) and all channels on a daisy-chain
connected SSH-8 to the higher offset channels (8-15).
•Channel gain — click on an SSH-8 channel in the list and then select its
SSH-8 external amplifier gain. SSH-8FG models have a fixed gain of
0.5. SSH-8SG models have switches to set the gain of each channel.
For information on programming a task for simultaneous sampling, see “Rate
Generator: Internal Clocking” on page 41 or “Rate Generator: External Clocking” on
page 43.
Disable AO recycle mode
For the DAS-1700AO hardware, DriverLINX can automatically promote AO tasks
meeting certain criteria to run from the DAC FIFO buffer in recycle mode. If the
Disable AO recycle mode box is checked, DriverLINX will not use recycle mode. If
the box is not checked, DriverLINX will use recycle mode for applicable tasks.
In recycle mode, DriverLINX automatically promotes AO tasks meeting the
following criteria as specified in the Service Request to run from the DAC FIFO
buffer in re-cycle mode:
Service Request Property Value
Request mode Interrupt
Stop event type Command
Buffer notify flag False
Buffer samples ×Number of buffers < 2048
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Keithley DAS-1700 Series Configuring the DAS-1700 Series •17
The advantages of using the DAC FIFO buffer for free-run, re-cycle mode analog
output are:
•The DAS-1700AO’s digital trigger operates in retrigger mode, enabling
you to synchronize analog output with a recurring external signal.
•Traffic on the memory bus is significantly reduced at high output rates.
•The system response latency will be noticeably shortened.
•The analog output timing will be immune to traffic on the memory and
I/O buses.
The disadvantages are:
•You can’t change the analog output values while the analog output task
is running.
•There is a delay while DriverLINX loads the FIFO.
•Buffer-filled notification messages cannot be posted, as the hardware
does not permit detection of end-of-buffer conditions.
•The STATUS operation cannot provide the “number of buffers
processed” report.
Using the Windows 95/98 Device Manager
Under Windows 95/98, DriverLINX uses the address and interrupt settings
maintained by the Windows Device Manager.
To view or change the settings for your board using the Device Manager:
1. Start the Device Manger by right-clicking on My Computer and
selecting Properties or click here .
2. Click the Device Manger tab.
3. Click the next to , if necessary to expand the
list.
4. Under DriverLINX drivers, select the entry for your board. (It may or
may not have next to it.)
5. Click the Properties button.
6. On the board’s property page, click the Resources tab.
7. To change the number and type of resources, select a different Basic
Configuration under Setting based on.
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18 •Configuring the DAS-1700 Series Keithley DAS-1700 Series
8. To change a resource setting, select it under Resource Type and click
the Change Setting button. Windows will guide you in selecting an
appropriate value.
9. When you are done, click OK to close the board’s property page.
10. The board’s address switches must match the address setting you select.
If necessary shut down your computer and reposition them as described
in your hardware manual.
11. Restart Windows to load the Logical Device for your board using the
new settings.
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Keithley DAS-1700 Series Configuring the DAS-1700 Series •19
Analog Input Subsystem Page
Use the Analog Input subsystem page to choose between single-ended or differential
analog input connections and to set or view your board’s interrupt request level.
Channels
On the DAS-1700 boards, Analog Input channel configuration is software
programmable for 16 single-ended or 8 differential analog inputs.
When configuring the Analog Input Subsystem, you choose a default configuration
for all channels. Applications can use the default configuration or specify the
connection type for each channel it uses. This scheme supports applications that use
DAS-1700-specific features as well as those that use only generic features. For
programming information, see “Analog Input Channels” on page 53.
Range
The analog input ranges for the DAS-1700 Series are fully software programmable.
DriverLINX grays out this property in the configuration dialog.
Interrupt
Configure the board with an interrupt for full support of the board’s capabilities.
Windows NT
For Windows NT, select a free interrupt request level to support interrupt or DMA
mode transfers. Valid IRQ settings are: 3, 5, 7, 10, 11, 15 and None.
Windows 95/98
Under Windows 95/98, Add New Hardware automatically selects an appropriate
interrupt. To change the setting, see “Using the Windows 95/98 Device Manager” on
page 17.
DMA
Configure the board with a DMA channel for full support of the board’s capabilities.
For Windows NT, select a free DMA channel to support DMA mode transfers. Valid
DMA settings are: 5, 6, 7 and None.
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20 •Configuring the DAS-1700 Series Keithley DAS-1700 Series
Under Windows 95/98, Add New Hardware automatically selects an appropriate
DMA channel. To change the setting, see “Using the Windows 95/98 Device
Manager” on page 17.
Analog Output Subsystem Page
Note: The Configure DriverLINX Device dialog shows the Analog Output
Subsystem Page only for applicable models.
Use the Analog Output subsystem page to set or view the subsystem’s DMA channel
and initial output voltages.
Channels
Lists the analog output channels on the board and selects a channel for the Volts and
Initialize properties.
Range
The analog output ranges for the DAS-1700 Series are fully software programmable.
DriverLINX grays out this property in the configuration dialog.
Volts
The Initialization Value property specifies the analog output value DriverLINX will
write to the selected Logical Channel upon hardware initialization. DriverLINX only
writes this value if you enable the Initialize check box.
Interrupt
The DAS-1700 Series uses the same interrupt for analog output as for analog input.
Go to the Analog Input subsystem page to view or set it.
DMA
DMA applies only to the DAS-1701AO and DAS-1702AO models. Configure the
board with a DMA channel for full support of the board’s capabilities.
Windows NT
For Windows NT, select a free DMA channel to support DMA mode transfers. Valid
DMA settings are: 5, 6, 7 and None.
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