40
•
Operation Theoreym
4.4.2.5 Mode5: Single Triggered Pulse Generation
This function generates a single pulse with programmable delay and pro-
grammable pulse-width following an active GPTC_GATE edge. These
software programmable parameters can be specified in terms of periods of
the GPTC_CLK input. Once the first GPTC_GATE edge triggers the single
pulse, GPTC_GATE takes no effect until the
software start
is re-executed.
Figure 4.4.5 illustrates the generation of a single pulse with pulse delay of
two and pulse-width of four.
2
2
1
0
3
2
1
0
Gate
CLK
Count value
OUT
Software start
Figure 4.4.5 Mode 5 Operation
4.4.2.6 Mode6: Re-triggered Single Pulse Generation
This mode is similar to mode 5 except that the counter generates a pulse
following every active edge on GPTC_GATE. After the
software start
,
every active GPTC_GATE edge triggers a single pulse with programmable
delay and pulse-width. Any GPTC_GATE trigger that occurs during the
pulse generation would be ignored. Figure 4.4.6 illustrates the generation
of two pulses with pulse delay of two and pulse-width of four.
2
2
1
0
3
2
1
0
2
2
1
0
3
2
1
0
2
2
G a t e
C L K
C o u n t v a l u e
O U T
S o f t w a r e s t a r t
I g n o r e d
Figure 4.4.6 Mode 6 Operation
Summary of Contents for NuDAQ DAQ-2500 Series
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