ADLINK DAQe-2502 - Manual (Page 8)

ii Table of Contents
3 Signal Connections .......................................................... 17
3.1 Connectors Pin Assignment............................................... 17
4 Operation Theory .............................................................. 21
4.1 A/D Conversion.................................................................. 21
AD Data Format ............................................................ 22
Acquisition Modes ......................................................... 23
Scan Timing and Procedure ......................................... 24
Trigger Modes ............................................................... 26
Bus-mastering DMA Data Transfer ............................... 29
4.2 D/A Conversion.................................................................. 31
Architecture ................................................................... 31
Hardware-Controlled Waveform Generation ................ 32
Data Format in FIFO and Mapping ............................... 33
Setting up the DACs ..................................................... 33
Using DACs’ Multiplying Characteristic ........................ 34
Software Update ........................................................... 34
Waveform Generation ................................................... 35
Waveform Generation Timing ....................................... 36
Trigger Modes ............................................................... 38
Iterative Waveform Generation ..................................... 41
4.3 General Purpose Digital I/O .............................................. 45
4.4 General Purpose Timer/Counter Operation ....................... 46
Basics Timer/Counter Function Basics ......................... 46
General Purpose Timer/Counter Modes ....................... 47
4.5 Trigger Sources ................................................................. 52
Software-Trigger ........................................................... 52
External Analog Trigger ................................................ 52
4.6 Timing Signals ................................................................... 56
System Synchronization Interface ................................ 57
5 Calibration ......................................................................... 59
5.1 Loading Calibration Constants........................................... 59
5.2 Auto-calibration .................................................................. 60
5.3 Saving Calibration Constants............................................. 60
Appendix ................................................................................ 61
Warranty Policy ..................................................................... 65