Adlink DAQe-2006 Manual do Utilizador descarregar pdf (Página 66)

54 Operation Theory

Figure 4-19: Infinite Iterative Waveform Generation with Post-trigger and

DLY2_Counter = 0

NOTES When running infinite iterative waveform generation, set-

ting IC_Counter is ineffective to the waveform genera-

tion. It only makes a difference when setting Stop mode

III. Refer to Figure 4-22.

Setting finite and infinite iterative waveform generation is

not discussed in this manual. Refer to software documen-

tation for related information.

Delay2 in Repetitive Waveform Generation

To diversify the D/A waveform generation, we add a DLY2

Counter to separate two consecutive waveforms in repetitive

waveform generation. The time between two waveforms is set

by the value of DLY2 Counter. The Delay2 counter starts to

count down after a waveform generation finishes and the next

waveform generation starts right after it counts down to zero,

as shown in Figure 4-20. This DLY2_Counter is 16-bit wide

and you may set the delay time in units of TIMEBASE (delay

time = DLY2_Counter/TIMEBASE) or in units of update period

(delay time = DLY2_Counter * UI_counter/TIMEBASE), so the

delay time can reach a wider range.

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Adlink DAQe-2006 Manual do Utilizador Página 66