2. Basic Commands
for composite video: the data byte describes the location of the composite video source signal to be selected.
Byte value Mode
0Video BNC
1Vertical sync BNC
2Red BNC
3Green BNC
4Blue BNC
5SVideo Y
6SVideo C
7Video 25
for Svideo: the data byte describes the location of the S-Video signal to be selected.
Byte value Mode
100 (x\64)SVideo 1
101(x\65) SVideo on Vs and Video BNC
102(x\66) SVideo on R & B
103 (x\67) SVideo 45
If byMode is ommited the mode is automaticaly detected.
2.10 Scanned inputs, read
Description
read the scanned inputs and returns the type of source signal present .
Command
Command [0] \x39
Command[1] \x01
Returned Data
10 unsigned words.see chapter "1. Serial communications Basics", "Data words", page 6
Data word scanned input possiblesources, Wvalue =
wValue1 BNC(RED) 0 = none ; 1 = RED; 2 = Pr ; 3 = S-VID(chr) ; 4 = VideoR
wValue2 BNC(GREEN) 0 = none ; 1 = GREEN ; 2 = G s; 3 = Y ; 4 = VideoG
wValue3 BNC(BLUE) 0 = none ; 1 = BLUE ; 2 = Pb ; 3 = S-VID(lum) ; 4 = VideoB
wValue4 BNC(HS) 0=none;1=HS;2=CS
wValue5 BNC(VS) 0 = none ; 1 = VS; 2 = S-VID(chr) ; 3 = Video VS
wValue6 BNC(VIDEO) 0= none ; 1 = VIDEO ; 3 = S-VID(lum)
5. optional
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