Data Translation DT2802 User manual

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Instra

DA1l1 TRANSLATION®
DT2802
User Manual
ChromatographyBoard for the
UM-10546-E
IB" PersonalComputer AT and Compatibles
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Fifth Edition
April, 1992
Data
Translation, Inc.
100 Locke Drive
Marlboro, MA 01752·1192
[phone]
Easylink MBX 62825999
Telex 951646
(DATATRANS
MARO)
Fax[phone]
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Copyright© 1991, 1992 by Data Translation, Inc.
All rights reserved. No part of this publication may be
reproduced, stored in a retrieval system, ortransmitted, in any
form by any means, electronic, mechanical, by photocopying,
recording,
or otherwise, without the priorwritten permission of
Data Translation, Inc.
Information furnished
by DataTranslation, Inc. is believed to
be accurate and reliable; however, no responsibility is
assumed
by Data Translation, Inc. forits use; norfor 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 rights of Data Translation, Inc.
Data Translation® is a registered trademark of Data
Translation, Inc.
IBM® and Personal Computer AT® are registered trademarks
ofthe International Business Machines Corporation.
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Radio and Television Interference
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is
operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause
harmful interference in which case the userwill be required to
correct
the interference at his own expense.
Changes or modifications to this equipment not expressly
approved
by Data Translation could void your authority to
operate the equipment under Part 15 of the FCC Rules.
Note This product was FCC-certifiedundertest conditions that
included use
of shieldedcables and connectors between system
components.
It is important thatyou use shieldedcables and
connectors to reduce the possibility of causing interference to
radio, television, and otherelectronic devices.
Canadian Department of Communications
Statement
This digital apparatus does not exceed the Class A limits for
radio noise emissions from digital apparatus set out in the Radio
Interference Regulations of the Canadian Department of
Communications.
Le present appareil numerique n'emet pas de bruits
radioelectriques depassant
les limites applicables aux appareils
numeriques
de Ia class A prescrites dans le Reglement sur le
brouillage radioelectrique edicte par le ministere des
Communications du Canada.
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Introduction
Installing the DT2802
Hardware Overview
Firmware
Programming Sequences
Hardware Reference
Firmware Reference
Troubleshooting
Glossary
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Table of Contents
How to Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Related Documents ............................. xviii
Conventions Used in This Manual
................... xix
Where to Get Help
............................... xix
Installing and Using
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1
The DT2802 Board .................................. 3
System Requirements
................................ 4
Accessories
........................................ 5
DT777 Screw Terminal Panel
....................... 5
DT2802 Device Driver and Subroutine Library .......... 6
Chapter 2: Installing the DT2802 ......... - .......... 7
Unpacking ......................................... 9
Installation Procedure ............................... 10
Step
1: Check the Jumper Selections ................ 11
Step 2: Install the Board .......................... 12
Step 3: Connect RS232-based Devices .............. 15
Step 4: Connect the Screw Terminal Panel ........... 16
Step 5: Connect the Detector(s) .................... 18
Step 6: Connect the External Devices ............... 20
Powering Up the System ............................. 22
Contents vii
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Chapter 3: Hardware Overview . . . . . . . . . . . . . . . . . . . . 23
Overview
......................................... 25
Data Acquisition Subsystem
.......................... 29
Input Characteristics
............................. 31
VFC Operation ................................. 34
DT2802 Microprocessor ............................. 36
Inputs and Outputs
................................. 38
Inputs
....................................... 38
Output Switches ................................ 38
Serial Port ........................................ 39
Bus Interface
...................................... 40
Status Register
................................. 42
Command Register .............................. 45
Data Out Register
............................... 46
Data In Register
................................ 47
Chapter 4: Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Overview ......................................... 51
Powerup/Reset ................................. 51
Command Processing ............................ 52
DT2802 System Operation
........................... 53
Integrators
..................................... 53
Output Switches ................................ 63
Switch Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Serial 1/0 ...................................... 65
Event/Interrupt Control
........................... 68
Data Management
............................... 70
viii Contents
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Command Summary ................................ 71
Command Structure ............................. 72
To Send a Command ............................ 73
To Read Data from the DT2802 .................... 74
Firmware Commands
............................... 75
System Operation
............................... 76
IntegratorConfiguration/Operation
.................. 80
110 Switch Configurations ......................... 98
Serial Port Configuration/Operation
................ 107
Event/Interrupt Control .......................... 115
Data Buffer Management
........................ 119
Other ...................................... 123
Chapter 5: Programming Sequences .............. 125
Introduction ...................................... 127
Configuring the Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
To Restore the Factory Configuration ............... 131
To Change the Configuration ..................... 131
Saving the Configuration to EEROM ................ 132
Acquiring Data: Polled 1/0
.......................... 133
Single Conversion Mode
......................... 133
Continuous Conversion Mode
..................... 138
Acquiring Data: Modified Polled 1/0 ................... 143
Acquiring Data: Interrupt Operation ................... 150
110 Switch Operation ............................... 157
Contents ix
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Hardware Reference
Reference 1: Jumper Configuration ............... 159
JumperSummary ................................. 161
Jumper Locations .............................. 162
Base Address Selection
............................. 164
Interrupt Priority Level Selection
...................... 166
Board Mode Selection
.............................. 168
Reference 2: Board Calibration . . . . . . . . . . . . . . . . . . 169
Integrator Calibration ............................... 171
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Calculating Digital Codes
........................ 174
Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Reference 3: Board Connectors .................. 177
Connector Summary ..................... ; . . . . . . . . . 179
P1 and P2: Bus Connectors ......................... 180
J1: Detector and 1/0 Connector ...................... 185
J2: Serial I/O Connector
............................ 187
Reference 4: Detector Connections ............... 191
Noise Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Electrical Noise
................................ 193
Crosstalk
..................................... 194
Thermal Effects
................................ 194
Differential Inputs
.............................. 195
Minimizing Errors
.............................. 195
x Contents
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Making Connections ............................... 196
Vref In/Out Connections ......................... 197
DT777Connections ................................ 199
DetectorInput Attenuation ........................ 199
110 Switch Connections .......................... 200
OtherConnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Reference 5: Specifications . . . . . . . . . . . . . . . . . . . . . 201
Detector Inputs ................................... 203
lnpuVOutput Switches
.............................. 205
SeriallnpuVOutput ................................. 206
Microprocessor ................................... 207
Interface ......................................... 208
PhysicaVEnvironmental ............................. 209
Firmware Reference
Reference 6: Remote Control Protocol ..... -. . . . . . . . 211
Overview ........................................ 213
The Serial Interface
................................ 215
Control Characters ............................. 215
ErrorCorrection
................................ 215
Packet Description ............................. 216
Error Detection
................................ 218
The Communications Protocol
........................ 219
Initiating Communication
......................... 219
Sending Firmware Commands .................... 220
Reading Integrator Data- Normal Data Mode ........ 223
Reading Integrator Data- Stream Data Mode ........ 223
Contents xi
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Acquiring Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Normal Data Mode
............................. 228
Stream Data Mode
............................. 233
Reference
7: Error Codes . . . . . • . . . . . . • . . . . • . . . . . 239
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
241
General System Errors ............................. 242
Parameter Errors .................................. 245
Run-Time Errors
.................................. 249
Fatal Errors
...................................... 254
DT2802 Error Summary
............................. 255
Reference
8: Firmware COmmand Summary ......... 257
Numerical Listing -DT2802-4
........................ 259
Numerical Listing -DT2802-2
........................ 263
Alphabetical Listing -DT2802-4
...................... 266
Alphabetical Listing -DT2802-2 . . . . . . . . . . . . . . . . . . . . . . 270
Reference 9: Product Support ................... 273
Gener~Checkn~ ................................. 275
Specific Problems
................................. 277
Service and Support
............................... 278
If Your Board Needs Factory Service ............... 279
Glossary
281
Index ....•.........•...........•............ 289
Warranty and Service Policy
Reader's Comment Form
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Figures
Figure 1: IBM Personal Computer
AT -top view ........ 12
Figure 2: Installing the Board
........................ 13
Figure 3: Connecting a Screw Terminal Panel
.......... 16
Figure 4: DetectorConnections
...................... 19
Figure 5: External Device Input Connections
........... 20
Figure 6:
Output Switch Connection .................. 21
Figure 7: DT2802-4 Functional Block Diagram
.......... 26
Figure 8: Data Acquisition Subsystem (DT2802-4)
...... 29
Figure 9: DT2802 Microprocessor
.................... 36
Figure 1 0: Status Register Bit Functions ................ 42
Figure 11: Event/Interrupt Source Mask
................ 44
Figure 12: Command Register Bit Functions
............. 45
Figure 13: Data Out Register Bit Functions
.............. 46
Figure 14: Data
In Register Bit Functions ............... 47
Figure 15: Set Switch States Simultaneously Byte ....... 103
Figure 16: 1/0 Switch State Byte ..................... 104
Figure 17: Input State Byte ............... : ......... 106
Figure 18: Event/Interrupt Source Mask ............... 115
Figure 19: Tag Byte Format
......................... 121
Figure 20: Single Conversion- Polled 1/0 ............. 134
Figure 21: Continuous
Conversions- Polled 110 ......... 139
Figure 22: Continuous
Conversions- Modified Polled 1/0 . 144
Figure 23: Continuous Conversions
-Interrupt Operation . 151
Figure 24: DT2802 Board Jumper Locations ............ 162
Figure 25: JumperLocation -No IRQ Level
............ 163
Figure 26: Jumper Location -ISA bus mode
........... 163
Figure 27: Base Address
........................... 164
Figure 28: Address Bit Jumper Positions
.............. 165
Figure 29: DT2802 Connectors
...................... 179
Contents xiii
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Figure 30: 25-pin O-shell to J2 Connector .............. 188
Figure 31: 9-pin O-shell to J2 Connector
............... 189
Figure 32: Preferred Detector Connections
............. 196
Figure 33: Alternate Detector Connections
............. 197
Figure 34: Sensing Vref
............................ 198
Figure 35: Supplying Vref
.......................... 198
Figure 36: Packet Components
...................... 216
Figure 37: Host Status Enquire
....................... 219
Figure 38: Host Negative Acknowledge
................ 220
Figure 39: Host Command Resend ................... 221
Figure 40: Successful Host Write Command ............ 222
Figure 41: Successful Host Read Command
............ 222
Figure 42: Command Data Resend
................... 222
Figure 43: Continuous
Conversions- Normal Data Mode .. 229
Figure 44: Continuous
Conversions- Stream Data Mode .. 234
Tables
Table 1:
RS232 Signal Lines ............ ~ . . . . . . . . . . 15
Table
2:
J1 Pin Assignments ....................... 17
Table 3: Digital Output Codes
...................... 30
Table 4: Resolution vs. LSB and nV-sec
.............. 32
Table 5: Resolution vs. Sampling Rate (Single Channel)
.. 33
Table
6:
VFC Settling Time ........................ 34
Table 7: Resolution vs. Throughput (Automux Mode)
.... 35
Table 8: DT2802 Registers
........................ 40
Table 9: Resolution vs. Throughput
.................. 55
Table 10: Resolution vs. Conversion Time
.............. 56
Table 11: Resolution vs. Sampling Rate (Single Channel)
.. 57
Table 12: Resolution vs. LSB and nV-sec
.............. 59
Table 13: Acknowledging Events/Interrupts
............. 69
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Table 14:
Table 15:
Table 16:
Table 17:
Table 18:
Table 19:
Table 20:
Table 21:
Table 22:
Table 23:
Table 24:
Table 25:
Table 26:
Table 27:
Table 28:
Table 29:
Table 30:
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Resolution vs. Smallest Measurable Signal ..... 89
Resolution vs. Conversion Time and
Maximum Throughput (Single Channel)
........ 90
Integrator Settling Time .................... 93
Factory Configuration Settings
.............. 129
Board State on Powerup or Reset
........... 130
JumperSummary ........................ 161
IRQ Levels- Default Uses ................. 167
Digital Output Codes
..................... 174
P1 Pin Assignments ...................... 181
~
P2 Pin Assignments ...................... 183
J1 Pin Assignments ...................... 186
J2 Pin Assignments
...................... 187
25-Pin Serial Connector Pin Assignments ..... 189
9-Pin Serial Connector Pin Assignments ...... 190
Control Characters ....................... 215
Packet Types ........................... 217
Maximum Throughput vs. Baud Rate
......... 227
Contents xv
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How to Use This Manual
This manual describes the high resolution DT2802 data
acquisition board for chromatography applications on the IBM
Personal Computer
AT and compatibles.
To use the DT2802, it is assumed you have a general
understanding of data acquisition and chromatography
concepts, and that you possess enough proficiency in software to
write your own application and diagnostic programs.
Listed below
is an overview of the information presented in this
manual.
Installing and Using
Chapter 1, "Introduction," presents the majorfeatures of the
DT2802 board and describes compatible Data Translation
products.
Chapter 2,
"Installing the DT2802," describes how to install the
DT2802 in an IBM Personal ComputerA Tor compatible and how
to connect external devices to the board.
Chapter 3,
"Hardware Overview," discusses the main
subsystems of the DT2802 board and the 1/0 registers for
communicating with the board.
Chapter 4,
"Firmware," describes the firmware commands for
performing the board's operations.
Chapter
5, "Programming Sequences," lists the sequence of
steps necessary fordoing commonly-performed board
operations.
Hardware Reference
Reference 1, "Jumper Configuration," shows you howto
change the base address, interrupt priority level, and operating
mode
of yourboard.
Reference
2, "Board Calibration," describes the auto-calibration
feature
of the board.
How to Use This Manual xvii
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Reference 3, "Board Connectors," describes the DT2802 board
connectors and lists their pinouts.
Reference 4, "Detector Connections," discusses the sources of
noise in a measurement. It shows you how to connect your
detector output to the DT2802 for low noise, high resolution
measurements.
Reference 5, "Specifications," provides the electrical and
mechanical specifications for the DT2802 board.
Firmware Reference
Reference 6, "Remote Control Protocol," describes how to
communicate and operate the DT2802 board via its RS232 port.
Reference
7, "Error Codes," lists the DT2802 error codes.
Reference 8, "Firmware Command Summary," provides a
numerical
and alphabetical summary of the firmware commands
and references their location in this manual.
Reference 9, "Product Support," explains what to do if you are
having difficulty using the DT2802 board.
The Glossary defines data acquisition and chromatography
terms used
in this manual.
Related Documents
DT2802 Software UserManual, Document Number UM-1 0548,
Data Translation, Inc.
DT777 UserManual, Document Number UM-1 0710, Data
Translation, Inc.
IBM Technical Reference, International Business Machines
Corporation
Note Requests for copies of this manual should be made to your
authorized IBM Personal Computerdealer.
xviii
How to Use This Manual
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Conventions Used in This Manual
Throughout this manual, the term "DT2802" refers to both the
DT2802-2 and DT2802-4 boards. Information applying to a
particular model onlywill indicate that board by model number.
The following symbol is used beside a firmware command to
indicate that command does not applyto the DT2802-2 board:
Unless otherwise noted, all features referenced in this manual
can be used with both the DT2802-2 and DT2802-4 boards.
The following symbol is used beside a firmware command to
indicate that command is not valid
in the stand-alone mode of
operation:
Unless otherwise noted, all features referenced in this manual
apply in both the normaiiSA bus mode and the stand-alone
mode of operation. -
Where to Get Help
If you have difficulty installing or using your DT2802 board, see
Reference 9, "Product Support."
Preface xix
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