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Real Time Devices AD1200 Manuals
Manuals and User Guides for Real Time Devices AD1200. We have
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Real Time Devices AD1200 manual available for free PDF download: User Manual
Real Time Devices AD1200 User Manual (148 pages)
Brand:
Real Time Devices
| Category:
Media Converter
| Size: 5.7 MB
Table of Contents
Table of Contents
4
Introduction
10
Digital-To-Analog Conversion (ADA1200 Only
12
What Comes with Your
13
Chapter 1 Board
16
P3 - Analog Input Voltage Range (Facrory Setring: T0 Volrs)
16
P4 - Analog Input Voltage Polarity (Facory Seuing: +/-)
16
P5 - DMA Request Channel (Factory Setting: Disabled)
16
P6 - DMA Acknowledge Channel (Factory Sening: Disabled)
16
CHAPTER 2 _ BOARD INSTALLATION 2-L
26
Connecting the Analog Input Pins
29
Running the 1200DIAG Diagnostics Prrogram
30
Connecting the Timer/Counters and Digital VO
30
Chapter 3 - Hardware Description
32
Chapter 4 Board
41
BA + 2: Reset (Write Only)
41
BA + 9: 8254 Timer/Countor I
44
Clearing and Setting Bits in
46
Enabling and Disabling the Extemal Trigger
49
Enabling and Disabling Intemrprs
49
Conversion Modes/Triggering
49
Starting an A/D Conversion
50
Monitoring Conversion Status @MA Done or End-Of-Convert)
50
Reading the Converted Data
50
Programming the Pacer Clock
51
8259 Programmable Intemrpt Controller
53
Intemrpt Mask Register (IMR)
53
End-Of-Interrupt (EOI) Command
53
Using Intemrpts in Your Programs
53
Writing an Interrupt Service Routine (ISR)
54
Restoring the Startup IMR and Interrupt Vector
55
Common Interrupt Mistakes
56
Choosing a DMA Channel
56
Allocating a DMA Buffer
56
Calculating the Page and Offset of a Buffer
57
The DMA
59
DMA Single Mask Register
59
Programming the DMA Controller
60
Programming the 1200 for DMA
60
Monitoring for DMA Done
60
Common DMA Problems
61
D/A Conversions (ADA1200 Only)
61
Example Programs and Flow Diagrams
64
Single Convert Flow Diagram (Figure 44)
66
DMA Flow Diagram (Figure 4-5)
67
Interrupts Flow Diagram (Figure 4-6)
68
D/A Conversion Flow Diagram (Figure 4-7)
69
Chapter 5 Calibration
78
APPENDIX A - 12OO SPECIFICATIONS A-L
78
Appendix B - P2 Connector Pin Assignments
82
Appendix C - Component Data Sheets
86
Appendix D _ Configuring the 12Oo for Signal Math
134
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