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7.6.
GPIO programming examples
7.6.1
GPIO Plus PWC shutter
Example: 10µs unit pulse width exposure control (PWC). Pixel clock is 51.324MHz.
513 clocks (613-100) equal 10µs.
Feature
c)Acquisition and
Trigger controls
JAI Acquisition and
Trigger Control
Pulse Generators
C a m e ra 0
(In te rfa c e # 1 )
S o ftw a re T rig g e r 2 / A ctio n 1
S o ftw a re T rig g e r 3 / A ctio n 2
C a m e ra 1
(In te rfa c e # 2 )
S o ftw a re T rig g er 2 / A ctio n 1
S o ftw a re T rig g er 3 / A ctio n 2
P u ls e
G e n e ra to r
C lo c k (M H z)
(P ixe l C lo c k
5 1 .3 2 4 M H z ）
AD-131GE
Trigger
Trigger Mode
selector
JAI Exposure
Mode
Pulse
Pulse Generator 0 Selector
Generator
selector
Clock Choice
Counter Dividing Value
Length Counter 0
Start point Counter 0
Repeat Count 0
End point Counter 0
Counter Clear 0
Trigger source
F V A L 1
L V A L 1
D V A L 1
E xp o s u re A c tive 1
S o ftw a re T rig g er 0
S o ftw a re T rig g er 1
C ro s s P o in t s w itc h
F V A L 2
L V A L 2
D V A L 2
E xp o s u re A c tive 2
S o ftw a re T rig g e r 0
S o ftw a re T rig g e r 1
O p tic a l In 1
O p tic a l In 2
T T L In 1
T T L In 2
L V D S In
P u ls e G e n era to r 0 O u t
P u ls e G e n era to r 1 O u t
P u ls e G e n e ra to r 2 O u t
P u ls e G e n e ra to r 3 O u t
P u ls e G e n e ra to r 0
P u ls e G e n e ra to r 1
P u ls e G e n e ra to r 2
P u ls e G e n e ra to r 2
C lo c k P re -sc a le r
(1 2 b it C o u n te r)
Fig.22 Pulse Generator Timing Example 1
F ra m e S ta rt T rig g er
T ra n s fe r S ta rt T rig g e r
F ra m e S ta rt T rig g er
T ra n s fe r S ta rt T rig g e r
T T L O u t 1
O p tic a l O ut 1
O p tic a l O ut 2
T im e S tam p R es e t
S e q u e nc e T a b le R e s et
S e q u e nc e T a b le R e s et
P u ls e G e n era to r
C le a r S o u rc e 0
C le a r S o u rc e 1
C le a r S o u rc e 2
C le a r S o u rc e 3
(2 0 b it C o u n te r)
(2 0 b it C o u n te r)
(2 0 b it C o u n te r)
(2 0 b it C o u n te r)
27
Value
ON
Pulse width control
Line 5 =OPT IN 1
1 = Pixel Clock
(51.324MHz)
0 = Pass through
1000 Clocks
100 Clocks
1
613 Clocks
Rising Edge
pulse generator 0
C a m e ra 0
C a m e ra 1
C a m e ra 0
C a m e ra 1
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