ADLINK DAQe-2502 - Manual (Page 45)

Operation Theory 35
Waveform Generation
This method is suitable for applications that need to generate
waveforms at a precise and fixed rate. Various programmable
counters will facilitate users to generate complex waveforms with
great flexibility.
Three event signals are involved in waveform generation: Start,
DAWR (DA WRite), and Stop. Refer to Table 4-6 for a brief sum-
mary of waveform generation events and their corresponding trig-
ger sources.
Event
Signal
Descriptions Trigger Sources
Start
Start Waveform Generation pro-
cess.
Software Trigger
Ext. Digital Trigger
Analog Trigger
SSI Trigger
DAWR
Write data to the DAC on the falling
edges of DAWR.
Internal Update
External Update
SSI Update
Stop Stop Waveform Generation
Software Trigger
Ext. Digital Trigger
Analog Trigger
Table 4-6: Trigger Signals and Corresponding Signal Sources