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National Instruments DAQ AT-MIO-16X Manuals
Manuals and User Guides for National Instruments DAQ AT-MIO-16X. We have
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National Instruments DAQ AT-MIO-16X manual available for free PDF download: User Manual
National Instruments DAQ AT-MIO-16X User Manual (330 pages)
Multifunction I/O Board for the PC AT/EISA
Brand:
National Instruments
| Category:
Network Hardware
| Size: 5.26 MB
Table of Contents
User Manual
1
Important Information
3
Table of Contents
4
Appendix A Specifications
13
Appendix B I/O Connector
13
Organization of this Manual
13
Appendix Camd Am9513A Data Sheet
14
Appendix D Customer Communication
15
Related Documentation
15
Chapter 1 Introduction
16
About the AT-MIO-16X
16
Analog Input
17
Analog Output
17
Digital and Timing I/O
18
What You Need to Get Started
18
Software Programming Choices
19
National Instruments Application Software
19
NI-DAQ Driver Software
20
Figure 1-1. the Relationship between the Programming Environment
21
Register-Level Programming
21
Optional Equipment
22
Unpacking
22
Figure 2-1. AT-MIO-16X with 50-Pin I/O Connector Parts Locator Diagram
23
Chapter 2 Configuration and Installation
24
Board Configuration
24
AT Bus Interface
24
Figure 2-2. AT-MIO-16X with 68-Pin I/O Connector Parts Locator Diagram
24
Base I/O Address Selection
25
Figure 2-3. Example Base I/O Address Switch Settings
25
Table 2-1. Default Settings of National Instruments Products for the PC
26
Table 2-2. Switch Settings with Corresponding Base I/O Address and
27
Interrupt and DMA Channel Selection
29
Analog Input Configuration
29
Input Mode
29
DIFF Input (Eight Channels)
30
Table 2-3. Available Input Configurations for the AT-MIO-16X
30
NRSE Input (16 Channels)
31
RSE Input (16 Channels)
31
Input Polarity and Input Range
32
Considerations for Selecting Input Ranges
32
Analog Output Configuration
33
Analog Output Reference Selection
33
Table 2-4. Actual Range and Measurement Precision Versus Input Range
33
Analog Output Polarity Selection
34
Digital I/O Configuration
34
Board and RTSI Clock Configuration
34
Hardware Installation
35
Signal Connections
36
Figure 2-4. AT-MIO-16X 50-Pin I/O Connector
37
Figure 2-5. AT-MIO-16X 68-Pin I/O Connector
38
Signal Connection Descriptions
39
Analog Input Signal Connections
41
Figure 2-6. AT-MIO-16X PGIA
42
Input Configurations
43
Differential Connection Considerations (DIFF Input Configuration)
44
Table 2-5. Recommended Input Configurations for Ground-Referenced and
44
Differential Connections for Ground-Referenced Signal Sources
45
Figure 2-7. Differential Input Connections for Ground-Referenced Signals
45
Differential Connections for Nonreferenced or Floating Signal Sources
46
Figure 2-8. Differential Input Connections for Nonreferenced Signals
46
Single-Ended Connection Considerations
48
Figure 2-9. Single-Ended Input Connections for Nonreferenced or Floating Signals
49
Single-Ended Connections for Floating Signal Sources (RSE Configuration)
49
Figure 2-10. Single-Ended Input Connections for Ground-Referenced Signals
50
Single-Ended Connections for Grounded Signal Sources (NRSE Configuration)
50
Common-Mode Signal Rejection Considerations
51
Types of Signal Sources
43
Floating Signal Sources
43
Ground-Referenced Signal Sources
43
Analog Output Signal Connections
51
Figure 2-11. Analog Output Connections
52
Digital I/O Signal Connections
53
Figure 2-12. Digital I/O Connections
54
Power Connections
54
Timing Connections for Data Acquisition and Analog Output
55
EXTSTROBE* Signal
55
Figure 2-13. EXTSTROBE* Signal Timing
55
SCANCLK Signal
55
EXTCONV* Signal
56
Figure 2-14. EXTCONV* Signal Timing
56
EXTTRIG* Signal
57
Figure 2-15. EXTTRIG* Signal Timing
57
EXTGATE* Signal
58
EXTTMRTRIG* Signal
58
Figure 2-16. EXTTMRTRIG* Signal Timing
58
Counter Signal Connections
59
Figure 2-17. Event-Counting Application with External Switch Gating
60
Figure 2-18. Frequency Measurement Application
61
Figure 2-19. General-Purpose Timing Signals
63
Field Wiring Considerations
64
Cabling Considerations for the AT-MIO-16X with 50-Pin I/O Connector
65
Cabling Considerations for the AT-MIO-16X with 68-Pin I/O Connector
66
Chapter 3 Theory of Operation
67
Functional Overview
67
Figure 3-1. AT-MIO-16X Block Diagram
67
PC I/O Channel Interface Circuitry
68
Figure 3-2. PC I/O Channel Interface Circuitry Block Diagram
69
Analog Input and Data Acquisition Circuitry
71
Figure 3-3. Analog Input and Data Acquisition Circuitry Block Diagram
71
Analog Input Circuitry
72
A/D Converter
72
Analog Input Configuration
72
Analog Input Multiplexers
72
ADC FIFO Buffer
73
Analog Input Calibration
73
Pgia
73
Data Acquisition Timing Circuitry
74
Figure 3-4. ADC Conversion Timing
74
Single-Read Timing
74
Single-Channel Data Acquisition Timing
75
Figure 3-5. Single-Channel Posttrigger Data Acquisition Timing
76
Figure 3-6. Single-Channel Pretrigger Data Acquisition Timing
77
Multiple-Channel Data Acquisition
78
Continuous Scanning Data Acquisition Timing
79
Figure 3-7. Scanning Posttrigger Data Acquisition Timing
79
Interval Scanning Data Acquisition Timing
80
Data Acquisition Rates
81
Analog Output and Timing Circuitry
81
Analog Output Circuitry
82
Figure 3-9. Analog Output Circuitry Block Diagram
82
Analog Output Calibration
83
Analog Output Configuration
83
DAC Waveform Circuitry and Timing
84
DAC Waveform Circuitry
84
Figure 3-10. Analog Output Waveform Circuitry
85
DAC Waveform Timing Circuitry
86
Figure 3-11. Posted DAC Update Timing
86
Figure 3-12. Analog Output Waveform Circuitry
87
FIFO Continuous Cyclic Waveform Generation
88
Figure 3-13. FIFO Cyclic Waveform Generation with Disable
88
FIFO Programmed Cyclic Waveform Generation
89
FIFO Pulsed Waveform Generation
89
Figure 3-14. FIFO Programmed Cyclic Waveform Timing
89
Figure 3-15. FIFO Pulsed Waveform Generation Timing
89
Digital I/O Circuitry
90
Figure 3-16. Digital I/O Circuitry Block Diagram
90
Timing I/O Circuitry
91
Figure 3-17. Timing I/O Circuitry Block Diagram
92
Figure 3-18. Counter Block Diagram
93
RTSI Bus Interface Circuitry
95
Figure 3-19. RTSI Bus Interface Circuitry Block Diagram
95
Chapter 4 Register Map and Descriptions
97
Register Map
97
Table 4-1. AT-MIO-16X Register Map
97
Register Description Format
99
Register Sizes
99
Configuration and Status Register Group
100
Command Register 3
101
Command Register 4
105
Table 4-2. DMA Channel Selection
108
Table 4-3. DMA and Interrupt Modes
112
Table 4-4. Interrupt Level Selection
115
Table 4-5. Board and RTSI Clock Selection
117
Table 4-6. Analog Output Waveform Modes
118
Status Register 1
121
Status Register 2
126
Analog Input Register Group
127
ADC FIFO Register
128
Table 4-7. Straight Binary Mode A/D Conversion Values
129
Table 4-8. Two's Complement Mode A/D Conversion Values
130
CONFIGMEM Register
131
Table 4-9. Input Configuration
135
Analog Output Register Group
137
Table 4-10. Analog Output Voltage Versus Digital Code (Unipolar Mode)
138
Table 4-11. Analog Output Voltage Versus Digital Code (Bipolar Mode)
138
DAC0 Register
140
DAC1 Register
141
ADC Event Strobe Register Group
142
CONFIGMEMCLR Register
143
CONFIGMEMLD Register
144
DAQ Clear Register
145
DAQ Start Register
146
Single Conversion Register
147
ADC Calibration Register
148
DAC Event Strobe Register Group
149
TMRREQ Clear Register
150
DAC Update Register
151
DAC Clear Register
152
General Event Strobe Register Group
153
DMA Channel Clear Register
154
DMATCA Clear Register
155
DMATCB Clear Register
156
External Strobe Register
157
Calibration DAC 0 Load Register
158
Calibration DAC 1 Load Register
159
Am9513A Counter/Timer Register Group
160
Am9513A Data Register
161
Am9513A Command Register
162
Am9513A Status Register
163
Digital I/O Register Group
164
Digital Input Register
165
Digital Output Register
166
RTSI Switch Register Group
167
RTSI Switch Shift Register
168
RTSI Switch Strobe Register
169
Chapter 5 Programming
170
Register Programming Considerations
170
Resource Allocation Considerations
170
Initializing the AT-MIO-16X
171
Table 5-1. Am9513A Counter/Timer Allocations
171
Initializing the Am9513A
172
Figure 5-1. Initializing the Am9513A Counter/Timer
173
Programming the Analog Input Circuitry
174
Single Conversions Using the SCONVERT or EXTCONV* Signal
174
Generating a Single Conversion
175
Figure 5-2. Single Conversion Programming
175
Reading a Single Conversion Result
176
Programming Single-Channel Data Acquisition Sequence
176
Figure 5-3. Single-Channel Data Acquisition Programming
178
Programming Data Acquisition Sequences with Channel Scanning
179
Continuous Channel Scanning Data Acquisition
179
Figure 5-4. Scanning Data Acquisition Programming
180
Interval-Channel Scanning Data Acquisition
181
Figure 5-5. Interval Scanning Data Acquisition Programming
182
Data Acquisition Programming Functions
183
Clearing the Analog Input Circuitry
183
Programming Single-Analog Input Channel Configurations
184
Programming Multiple-Analog Input Channel Configurations
184
Programming the Sample-Interval Counter
185
Programming the Sample Counter(S)
186
Sample Counts 2 through 65,536
187
Sample Counts Greater than 65,536
187
Programming the Scan-Interval Counter
189
Applying a Trigger
190
Servicing the Data Acquisition Operation
191
Resetting the Hardware after a Data Acquisition Operation
191
Resetting a Single Am9513A Counter/Timer
192
Figure 5-6. Resetting an Am9513A Counter/Timer
193
Programming the Analog Output Circuitry
194
Cyclic Waveform Generation
195
Figure 5-7. Cyclic Waveform Programming
196
Programmed Cycle Waveform Generation
197
Figure 5-8. Programmed Cycle Waveform Programming
198
Pulsed Cyclic Waveform Generation
199
Figure 5-9. Pulsed Cyclic Waveform Programming
200
Waveform Generation Programming Functions
201
Clearing the Analog Output Circuitry
201
Selecting the Internal Update Counter
201
Programming the Update-Interval Counter
201
Programming the Waveform Cycle Counter
203
Programming the Waveform Cycle Interval Counter
203
Servicing Update Requests
204
Programming the Digital I/O Circuitry
205
Programming the Am9513A Counter/Timer
206
RTSI Bus Trigger Line Programming Considerations
206
RTSI Switch Signal Connection Considerations
207
Table 5-2. RTSI Switch Signal Connections
207
Programming the RTSI Switch
208
Programming DMA Operations
210
Interrupt Programming
212
Chapter 6 Calibration Procedures
213
Table 6-1. EEPROM Factory Area Information
214
Figure 6-1. AT-MIO-16X EEPROM Map
214
Figure 6-2. Revision and Subrevision Field
217
Figure 6-3. Configuration Memory Depth Field
217
Figure 6-4. ADC and DAC FIFO Depth Field
218
Figure 6-5. Area Information Field
218
Calibration Equipment Requirements
219
Calibration Dacs
220
Reference Calibration
220
Analog Input Calibration
221
Analog Output Calibration
222
Specifications
224
Table A-1. Equivalent Offset Errors in 16-Bit Systems
226
Table A-2. Equivalent Gain Errors in 16-Bit Systems
227
Table A-3. Typical Multiple-Channel Scanning Settling Times
228
Figure B-1. AT-MIO-16X 50-Pin I/O Connector
234
Figure B-2. AT-MIO-16X 68-Pin I/O Connector
235
Table B-1. Signal Connection Descriptions
236
Electronic Services
279
Telephone and Fax Support
280
Calibration Dacs
287
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