Operation Theorem
•
41
4.4.2.7 Mode7: Single Triggered Continuous Pulse Generation
This mode is similar to mode 5, except that the counter generates con-
tinuous periodic pulses with programmable pulse interval and pulse-width
following the first active edge of GPTC_GATE. Once the first
GPTC_GATE edge triggers the counter, GPTC_GATE takes no effect until
the
software start
is re-executed. Figure 4.4.7 illustrates the generation of
two pulses with pulse delay of four and pulse-width of three.
4
4
4
3
2
1
0
2
1
S o f t w a r e s t a r t
0
3
2
1
0
2
1
0
3
2
G a t e
C L K
C o u n t v a l u e
O U T
Figure 4.4.7 Mode 7 Operation
4.4.2.8 Mode8: Continuous Gated Pulse Generation
This mode generates periodic pulses with programmable pulse interval
and pulse-width following the
software start
. GPTC_GATE is used to
enable/disable counting. When GPTC_GATE is inactive, the counter halts
the current count value. Figure 4.4.8 illustrates the generation of two
pulses with pulse delay of four and pulse-width of three.
4
4
3
3
2
1
0
2
1
S o f t w a r e s t a r t
0
3
2
1
0
2
1
1
0
3
G a t e
C L K
C o u n t v a l u e
O U T
Figure 4.4.8 Mode 8 Operation
Summary of Contents for NuDAQ DAQ-2500 Series
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