Tektronix Using Keithley DriverLINX with KPCI-1801HC or KPCI-1802HC (600KB) User manual
Keithley KPCI-1800 Series
Using DriverLINX with Your
Hardware
Information in this document is subject to change without notice. The software
described in this document is furnished under a license agreement. The software may
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Keithley KPCI-1800 Series: Using DriverLINX with Your Hardware
Copyright 1999 by Scientific Software Tools, Inc.
All rights reserved.
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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 KPCI-1800 Series 11
Introduction..............................................................................................................................11
Configure DriverLINX Device Dialog.....................................................................................11
Device Subsystem Page.............................................................................................13
Analog Input Subsystem Page ...................................................................................15
Analog Output Subsystem Page.................................................................................16
Digital Input Subsystem Page....................................................................................17
Digital Output Subsystem Page .................................................................................19
Counter/Timer Subsystem Page.................................................................................21
Using the KPCI-1800 Series with DriverLINX 23
Introduction..............................................................................................................................23
DriverLINX Hardware Model for KPCI-1800 Series..............................................................23
DriverLINX Subsystems............................................................................................23
DriverLINX Modes ...................................................................................................24
DriverLINX Operations and Events..........................................................................25
Logical Channels.......................................................................................................27
Buffers.......................................................................................................................27
Connecting Signals to the KPCI-1800 Series...........................................................................28
Analog Input Subsystem Signals................................................................................28
Analog Output Subsystem Signals.............................................................................29
Digital Input Subsystem Signals................................................................................29
Digital Output Subsystem Signals..............................................................................29
Counter/Timer Subsystem Signals.............................................................................30
Device Subsystem....................................................................................................................31
Device Modes............................................................................................................31
Device Operations .....................................................................................................31
Analog Input Subsystem ..........................................................................................................32
Analog Input Modes..................................................................................................32
Analog Input Operations............................................................................................32
Analog Input Timing Events......................................................................................33
Analog Input Start Events..........................................................................................41
Analog Input Stop Events..........................................................................................42
Analog Input Channels...............................................................................................45
Analog Input Buffers .................................................................................................49
Analog Input Data Coding.........................................................................................51
Keithley KPCI-1800 Series Contents • 3
Analog Input Messages..............................................................................................52
Analog Output Subsystem........................................................................................................53
Analog Output Modes................................................................................................53
Analog Output Operations.........................................................................................53
Analog Output Timing Events...................................................................................54
Analog Output Start Events .......................................................................................57
Analog Output Stop Events........................................................................................58
Analog Output Channels............................................................................................59
Analog Output Buffers...............................................................................................62
Analog Output Data Coding ......................................................................................62
Analog Output Messages...........................................................................................63
Digital Input Subsystem...........................................................................................................64
Digital Input Modes...................................................................................................64
Digital Input Operations............................................................................................64
Digital Input Timing Events ......................................................................................64
Digital Input Start Events...........................................................................................69
Digital Input Stop Events...........................................................................................69
Digital Input Channels...............................................................................................70
Digital Input Buffers..................................................................................................72
Digital Input Messages..............................................................................................73
Digital Output Subsystem ........................................................................................................74
Digital Output Modes................................................................................................74
Digital Output Operations..........................................................................................74
Digital Output Timing Events ....................................................................................74
Digital Output Start Events........................................................................................77
Digital Output Stop Events........................................................................................77
Digital Output Channels.............................................................................................78
Digital Output Buffers...............................................................................................81
Digital Output Messages............................................................................................81
Counter/Timer Subsystem ........................................................................................................82
Gate Settings..............................................................................................................83
Uninstalling DriverLINX 85
How do I uninstall DriverLINX? .............................................................................................85
Troubleshooting 89
Solving Problems.....................................................................................................................89
Solving Problems Recognizing and Installing Drivers...............................................89
Solving Problems Configuring the Drivers................................................................91
Solving Problems Loading Drivers............................................................................91
Generating a DriverLINX Configuration Report .....................................................................94
What is in the Report? ...............................................................................................94
How do I Generate the Report?.................................................................................94
Glossary of Terms 95
Preface
Software License and Software Disclaimer of Warranty
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Keithley KPCI-1800 Series Preface • 5
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6 • Preface Keithley KPCI-1800 Series
About DriverLINX
Welcome to DriverLINX for Microsoft Windows, the high-performance realtime data-acquisition device drivers for Windows application development.
DriverLINX is a language- and hardware-indepe ndent applic ation 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
• Learn DriverLINX, an interactive learning and demonstration program
for DriverLINX that includes a Digital Storage Oscilloscope
• 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 t he
hardware features of Keithley’s KPCI-1800 Series boards with DriverLINX.
• For help installing and configuring your hardware and Dr iverLINX,
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 KPCI-1800 Series
Shows how to configure the KPCI-1800 Series using the Configure DriverLINX
Device dialog box.
Keithley KPCI-1800 Series Preface • 7
Using the KPCI-1800 Series with DriverLINX
Shows how to set up DriverLINX with the Edit Service Request dialog box to use
KPCI-1800 Series hardware features.
Uninstalling DriverLINX
Describes how to remove DriverLINX hardware drivers and other files.
Troubleshooting
Gives troubleshooting tips for installing, configur ing, and loading D riverLINX
drivers.
8 • Preface Keithley KPCI-1800 Series
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.
Concept
Tables
• Important concepts and notes are printed in the left margin.
Keithley KPCI-1800 Series Preface • 9
Configuring the KPCI-1800 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 KPCI-1800 Series boards.
Windows NT
Installing and configuring DriverLINX for a Keithley KPCI-1800 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 Dri verLINX
Device Dialog” on page 11 for configuration options specific to a
Keithley KPCI-1800 Series model.
3. Install your KPCI-1800 hardware, read and follow the instructions in
your hardware manual.
After configuring DriverLINX, instal l ing 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.
Under Windows NT 4.0, a Logical Device may not load because the operating
system does not always configure Plug-and-Play PCI devices properly. To work
around this, set your computer’s BIOS to configure Plug-and-Play devi ces before it
starts the operating system. On various computers the BIOS setting is called “Plugand-Play Aware OS – Disabled” or “Plug & Play OS – No”.
Configure DriverLINX Device Dialog
DriverLINX uses a standardized configuration protocol for all data-acquisition
hardware. Configur ation assigns an identi fying device number to a specific KPCI1800 Series board in your computer and allows you to enable or disable bus
mastering.
Keithley KPCI-1800 Series Configuring the KPCI-1800 Series • 11
The installation program automatically starts the DriverLINX Configuration Panel.
To start it now, use the shortcut on the Windows Start Menu or click here
.
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 the Keithley KPCI-1800 Series. The following sections
describe your choices in configuring DriverLINX to work with your board.
12 • Configuring the KPCI-1800 Series Keithley KPCI-1800 Series
Device Subsystem Page
Use the Device subsystem page to tell DriverLINX the model name of your KPCI1800 Series board.
Vendor
Windows NT
Windows 95/98
The Vendor property displays “Keithley Instruments, Inc.” It is a read-only property.
Device
The Device property designates the Logical Device you are configuring. It is a readonly 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.
Select one of the following models:
KPCI-1801HC
KPCI-1802HC
Windows 95 automatically determines the model of your board so DriverLINX
disables Model selection.
Board Id
The Board Id property associates this Logical Device with a specific board.
DriverLINX automatically enters the KPCI-1800’s serial number in this field.
DriverLINX use s the board’s ser ial number to uniquely recognize boards if you have
installed multiple boards of the same model into your computer.
Windows NT
Keithley KPCI-1800 Series Configuring the KPCI-1800 Series • 13
Under Windows NT, Board Id is initially blank. DriverLINX will use the Model
setting to match this Logical Device to the first available board and then enter that
board’s serial number.
Windows 95/98
Windows 95/98 automatically determines which board to associate with this Logical
Device. DriverLINX enters the serial number of the board when it starts the
configuration.
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 KPCI-1800 Series because it does not support automatic
calibration.
Special…
The Special… button displays the following dialog box of KPCI-1800 Series-specific
configuration options:
Bus Mastering
Bus Mastering is a mode that PCI devices use to perform DMA data transfers. The
KPCI-1800 Series can use bus mastering on motherboards that support it. With bus
mastering disabled, the board will operate in interrupt mode when the Service
Request asks for DMA mode. For maximum throughput, enable bus mastering if your
motherboard supports it.
Motherboards compliant with revision 2.1 of the PCI specification support bus
mastering. Almost all newer motherboards support bus mastering but some require
BIOS settings to enable it for a particular PCI slot. Older motherboards may not
support bus mastering at all and may cause the system to hang, risking loss of
unwritten disk data and requiring you to reboot. Consult your computer
manufacturer’s documentation to determine if your motherboard supports bus
mastering.
To test bus-mastering, check the Enable Bus Mastering box, click OK as necessary to
exit the DriverLINX Configuration Panel and restart Windows. Close all other
applications, wait until all disk activity stops, then run the DriverLINX AIO Panel. If
the AIO Panel can display an input signal then your motherboard is compatible with
your KPCI-1800 board. As long as your BIOS has enabled bus-mastering for the PCI
slot your board is in, DriverLINX can use DMA mode.
14 • Configuring the KPCI-1800 Series Keithley KPCI-1800 Series
Analog Input Subsystem Page
Use the Analog Input subsystem page to choose between 64 single-ended or 32
differential analog input channels as a default configuration.
Channels
On the KPCI-1800 Series, each Analog Input channel can use single-ended or
differential connections. 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 KPCI-1800-specific features as well as those that use
only generic features. For programming information, see “Anal og Input Channels” on
page 45.
Range
The analog input ranges for the KPCI-1800 Series are fully software programmable.
DriverLINX grays out this property in the configuration dialog.
Interrupt
Windows automatically determines the interrupt level for the KPCI-1800 board.
DriverLINX disables this property.
DMA
The KPCI-1800 Series does not use DMA channels for direct memory transfers. PCI
devices use bus mastering for DMA. DriverLINX initially disables bus mastering for
your KPCI-1800 board. See “Special…” on page 14 for more information.
Keithley KPCI-1800 Series Configuring the KPCI-1800 Series • 15
Analog Output Subsystem Page
Use the Analog Output subsystem page to set or view the 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 KPCI-1800 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 In
itialize check box.
Interrupt
Windows automatically determines the interrupt level for the KPIC-1800 board.
DriverLINX disables this property.
DMA
The KPCI-1800 Series does not use DMA channels for direct memory transfers.
DriverLINX disables this property.
Initialize
Checking the Initialize check box instructs DriverLINX to use the Volts property for
analog output initialization.
16 • Configuring the KPCI-1800 Series Keithley KPCI-1800 Series
For the KPCI-1800 Series,
there are no configurable
options on the Digital Input
subsystem page.
Digital Input Subsystem Page
Channels
The Channels property allows you to select a Logical Channel for configuration or
viewing the channel’s range. The KPCI-1800 Series digital channels have fixed
configurations.
DriverLINX defines the following Logical Channels for the KPCI-1800 Series digital
inputs:
Logical
Channel
0 Standard Digital Input DI 0 … DI 3
1 External Clock XPCLK
2 External Trigger TGIN
DriverLINX Function KPCI-1800 Series
External Connector
Range
The Range property specifies the supported digital input range for the selected
Logical Channel. This is a read-only property.
Interrupt
The KPCI-1800 Series does not use interrupts for the digital input subsystem.
DriverLINX disables this property and displays it as blank.
DMA
The KPCI-1800 Series does not use DMA channels for direct memory transfers.
DriverLINX disables this property.
Configuration Setup
The Configuration Setup property specifies the hardware configuration of the digital
I/O ports. The KPCI-1800 Series has a fixed digital I/O configuration. Therefore,
DriverLINX disables this field.
Keithley KPCI-1800 Series Configuring the KPCI-1800 Series • 17
Initialize
Checking the Initialize check box instructs DriverLINX to use the Configuration
S
etup property to configure the digital I/O ports. The KPCI-1800 Series has a fixed
digital I/O configuration. Therefore, DriverLINX disables this field.
18 • Configuring the KPCI-1800 Series Keithley KPCI-1800 Series
Digital Output Subsystem Page
Use the Digital Output subsystem page to change the default digital output port
initialization values.
Channels
The Channels property allows you to select a Logical Channel for initialization or
viewing the channel’s range . DriverLINX defines the follo wing Logical Channels for
the KPCI-1800 Series digital outputs:
Logical
Channel
0 Standard Digital Output DO 0 … DO 7
DriverLINX Function KPCI-1800 Series
External Connector
Range
The Range property specifies the supported digital output range for the selected
Logical Channel. This is a read-only property.
Interrupt
The KPCI-1800 Series does not use interrupts for the digital output subsystem.
DriverLINX disables this property and displays it as blank.
DMA
The KPCI-1800 Series does not use DMA channels for direct memory transfers.
DriverLINX disables this property.
Initialization Value
The Initialization Value property specifies the digital output value DriverLINX will
write to the selected Logical Channel upon hardware initialization. DriverLINX only
writes this value if you enable the In
Keithley KPCI-1800 Series Configuring the KPCI-1800 Series • 19
itialize check box.
Initialize
Checking the Initialize check box instructs DriverLINX to use the Initialization
V
alue property for digital output port initialization.
Dec
This check box converts the Initialization Value property to decimal.
Hex
This check box converts the Initialization Value property to hexadecimal.
20 • Configuring the KPCI-1800 Series Keithley KPCI-1800 Series
Counter/Timer Subsystem Page
Resolution
The Resolution property specifies the default clock frequency of the master
oscillator. All models have a programmable 10 MHz, 5 MHz, 1 MHz or 100 kHz
clock source for pacing input/output tasks. This setting selects the default frequency.
Applications can use the default or specify a frequency for each task.
Interrupt
Windows automatically determines the interrupt level for the KPCI-1800 board.
DriverLINX disables this property.
Keithley KPCI-1800 Series Configuring the KPCI-1800 Series • 21
Using the KPCI-1800 Series with
DriverLINX
Introduction
See the Analog I /O
Programming Guide for an
overview of DriverLINX
programming.
This chapter shows you how to set up and use KPCI-1800 Series hardware features
with DriverLINX.
The descriptions here use the Edit Service Request dialog for language and API
independence. For the corr ect syntax with the language you’re using, p lease see the
DriverLINX Technical Reference Manuals. For DriverLINX examples in your
programming language, p lease see the sourc e code examples in the subdirectories of
your DriverLINX installation directory or on the original distribution media.
DriverLINX Hardware Model for KPCI-1800 Series
DriverLINX provides a portable, hardware-independent API for data-acquisition
boards while still allowing applications to access unique or proprietary hardware
features of specific products. To achieve this goal, DriverLINX maps a hardwareindependent, or abstract, data-acquisition model onto KPCI-1800 Series hardware
capabilities.
The following sections describe how DriverLINX implements KPCI-1800 Series
hardware features as Subsystems, Modes, Operations, Events, Logical Channels,
Buffers, and Messages.
DriverLINX Subsystems
The KPCI-1800 Series supports the following DriverLINX subsystems:
1. Device—refers to a KPCI-1800 board as a whole.
2. Analog Input—refers to the analog input channels, clocks, and control
signals.
3. Analog Output—refers to the analog output channels, clocks, and
control signals.
4. Digital Input—refers to the digital input port as well as 1-bit digital
input (TTL) control signals, such as TGIN.
Keithley KPCI-1800 Series Using the KPCI-1800 Series with DriverLINX • 23
5. Digital Output—refers to the digital output port.
6. Counter/Timer—refers to the input/output subsystem-specific internal
clock channels for pacing analog input/output.
DriverLINX Modes
Applications use modes in Service Requests to advise DriverLINX on their preferred
hardware data transfer technique. The DriverLINX modes fall into two general
classes:
• Foreground or synchronous modes. The calling application doesn’t
regain control until DriverLINX completes the Service Request.
DriverLINX supports this mode for simple, single value I/O operations
or software housekeeping functions that DriverLINX can complete
without a significant delay.
• Background or asynchronous modes. The calling application regains
control as soon as DriverLINX initiates the task. The calling application
must synchronize with the data-acquisition task using status polling or
DriverLINX’s messages (preferred). DriverLINX supports this mode
for buffered data transfers or for commands that require a significant
time to complete.
DriverLINX supports four modes with the KPCI-1800 Series for its commands
(Service Requests).
• Polled Mode—This is a foreground or synchronous op eration.
DriverLINX supports this mode for simple, single-value I/O operations
that the data-acquisition board can complete without significant delay.
• Interrupt Mode—T his is a background or asynchronous op eration.
DriverLINX transfers data between the computer’s memory and the
data-acquisition board using hardware interrupts and programmed I/O
transfers.
• DMA Mode—This is a backgro und or asynchronous o peration.
DriverLINX programs the data-acquisition board to transfer data
between the computer’s memory and the board.
• Other Mode—This i s a foreground or synchronous operation.
DriverLINX supports this mode for initialization, configuration,
calibration, data conversion, and timebase operations.
24 • Using the KPCI-1800 Series with DriverLINX Keithley KPCI-1800 Series
The following table summarizes the data acquisition modes that DriverLINX
supports for each subsystem with the Keithley KPCI-1800 Series.
Subsystem Polled Interrupt DMA Other
Analog Input
Analog Ou tput
Digital Input
Digital Output
Counter/Timer
Device
√ √ √ √
√ √ √ √
√ √
√ √
KPCI-1800 Series Supported DriverLINX Modes.
√
√
√
√
DriverLINX Operations and Events
Applications construct DriverLINX data-acquisition tasks by combining a small
number of DriverLINX operations and events in many possible ways. The following
table summarizes the operations and events that DriverLINX supports for the
Keithley KPCI-1800 Series. Later sections for each DriverLINX subsystem will
describe the operations and events in more detail.
Keithley KPCI-1800 Series Using the KPCI-1800 Series with DriverLINX • 25
Note: All subsystems allow the MESSAGE operation and the Analog Input
subsystem allows the CONVERT operation, which are not shown in the table.
DriverLINX allows any Mode setting for these operations.
Subsystem Operation Events
Mode Timing Start Stop
Analog Input
Polled Start null null, cmd null, TC
Interrupt Start, Stop,
Status
DMA Start, Stop,
Status
Other Initialize
Analog Output
Polled Start null null, cmd null, TC
Interrupt Start, Stop,
Status
DMA Start, Stop,
Status
Other Initialize
dig, rate cmd, dig cmd, TC, dig
dig, rate cmd, dig cmd, TC, dig
rate cmd, dig cmd, TC
rate cmd, dig cmd, TC
Digital Input
Polled Start null null, cmd null, TC
Interrupt Start, Stop,
rate cmd cmd, TC
Status
Other Initialize
Digital Output
Polled Start null null, cmd null, TC
Interrupt Start, Stop,
rate cmd cmd, TC
Status
Other Initialize
Counter/Timer
Other Initialize
Device
Other Initialize,
Configure,
Capabilities
Allowed Operations and Events for KPCI-1800 Series Subsystems and Modes.
26 • Using the KPCI-1800 Series with DriverLINX Keithley KPCI-1800 Series
The following list explains the Event abbreviations in the preceding table:
• null—Null or None Event when a Service Request doesn’t require an
event
• cmd—Command Event when DriverLINX starts or stops a task on
software command
• TC—Terminal Count Event when DriverLINX processes all data
buffers once
• rate—Rate Event specifies how DriverLINX paces or clocks data
transfer
• dig—Digital Event specifies a trigger, clock, or other control signal to
pace, start, or stop a task
Logical Channels
DriverLINX designates the individually addressable hardware channels for each
subsystem as “Logical Channels.” Generally, the zero-based Logical Channel
numbering sequence closely follows the hardware manufacturer’s cha nnel numbering
scheme.
In some cases, however, DriverLINX assigns Logical Channel numbers to hardware
features that users don’t commonly think of as “channels.” For instance, DriverLINX
commonly models external hardware clock input lines, external hardware trigger
input lines, and external interrupt inputs as 1-bit digital Logical Channels. In other
cases, DriverLINX models subsystem-specific features, such as internal pacer clocks,
as members of a more general-purpose set of counter/timer channels.
For a list of DriverLINX assigned Logical Channel numbers, see the notes on each
supported subsystem.
Buffers
Applications usually use data buffers to exchange data between the application and
the data-acquisition hardware. When using data buffers, please note the following
points about DriverLINX’s data buffers:
• DriverLINX supports data-acquisition tasks with 1 to 255 data buffers
per task.
• DriverLINX imposes no size limits on a single buffer, although the
operating system or some hardware products may have size restrictions.
• User applications must allow DriverLINX to allocate all data buffers to
guarantee application portability to different hardware and operating
systems and to insure that the hardware can physically access the buffer
memory.
• User applications usually don’t have concurrent or immediate access to
the in-use data buffer while DriverLINX is executing a data-acquisition
task.
Keithley KPCI-1800 Series Using the KPCI-1800 Series with DriverLINX • 27
Connecting Signals to the KPCI-1800 Series
The Keithley hardware manual describes the data and control signals for the KPCI1800 Series and the connector pinouts for these signals. This section summarizes how
DriverLINX numbers the I/O data signals and how DriverLINX uses the control
connections for external clock, trigger, a nd gating inputs.
Analog Input Subsystem Signals
The Analog Input subsystem has 64 analog inputs and an analog ground. You set the
default subsystem configuration as 32 differential or 64 single-ended channels.
Applications can then use the default configuration or request a specific configuration
for each channel. See “Analog Input Channels” on page 45 for programming
information.
DriverLINX maps these connections to Logical Channels as shown in the following
table:
Physical Channels Connector Name Logical
Channels
0 – 31 Differential CH00LO, HI – CH31LO, HI 0 – 31
0 – 63 Single-ended CH00LO – CH63LO, AGND 0 – 63
How DriverLINX maps analog input hardware channels to Logical Channels.
Analog Input Pacing, Trigger ing and Gating Signals
Analog input tasks can use the input-pacing counter, which DriverLINX designates
as Counter/Timer Logical Channel 0. For this counter the clock source can be
internal or external.
The Analog Input subsystem uses two control signals that DriverLINX defines as an
external clock and a trigger/gate as shown in the following table:
Connector Name DriverLINX Usage
TGIN External trigger/gate
XPCLK External pacer clock
How DriverLINX uses analog i nput control signals.
28 • Using the KPCI-1800 Series with DriverLINX Keithley KPCI-1800 Series
Analog Output Subsystem Signals
The Analog Output subsystem has 2 analog differential output connections.
DriverLINX maps these connections to Logical Channels as shown in the following
table:
Physical
Channel
0 DAC0IN,DAC0OUT 0
1 DAC1IN, DAC1OUT 1
How DriverLINX maps analog output hardware channels to Logical Channels.
Connector Name Logical
Channel
Digital Input Subsystem Signals
The Digital Input subsystem has one 4-bit digital input port and two control inputs
which DriverLINX models as 1-bit logical digital input ports. DriverLINX maps
these signals to Logical Channels as shown in the following table:
Port Connector Name Logical Channel
4-bit digital input DI 0 … DI 3 0
External clock alias XPCLK 1
External trigger alias TGIN 2
How DriverLINX maps digital input hardware channels to Logical Channel s.
Digital Output Subsystem Signals
The Digital Output subsystem has an 8-bit digital output port. DriverLINX maps
these signals to Logical Channels as shown in the following tables:
Port Connector Name Logical Channel
8-bit digital output DO 0 … DO 7 0
How DriverLINX maps digital output hardware channels to Logical Channel s.
Keithley KPCI-1800 Series Using the KPCI-1800 Series with DriverLINX • 29
Counter/Timer Subsystem Signals
The Counter/Timer subsystem has an external clock source and a gate input that the
board can use with any Logical Channel. DriverLINX maps these signals as shown in
the following table:
8254 Chip Counter Connector Name Logical Channel
Counters 1 & 2 XPCLK, TGIN 0
Counter 0 XPCLK, TGIN 1
Counter 1 XPCLK, TGIN 2
Counter 2 XPCLK, TGIN 3
How DriverLINX maps counter/ timer hardware channels to Logical Channels .
30 • Using the KPCI-1800 Series with DriverLINX Keithley KPCI-1800 Series
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