Analog way SMART FADE SMF251 Manuel Utilisateur page 33

SMART FADE™
10-4. COMMANDS AND RESPONSES TABLE (continued)
COMMAND
RESPONSE
ASCII
STATUTS COMMANDS (READ ONLY)
U UNIT
l CLD
t CFD
P CSTA
c CCHAN
p VSTA
v VCHAN
n SCSTA
I ICHAN
MISCELLANEOUS COMMANDS
Y CMD
? DEV
K K_
L L_
R R_
X V_
10-5. COMMANDS DESCRIPTION
Values sent or received are in decimal.
Depending on the command letter, the value can be used as a linear control (ex : 255W to set the horizontal size to the
maximum) or as a set of bits (ex : P command with multiple controls).
In this case, the value must be converted in binary base to understand every bit action.
EXAMPLE: Host receives message CSTA25 (P command)
Decimal value 25 = Binary value 11001
25 = (32 x 0) + (16 x 1) + (8 x 1) + (4 x 0) + (2 x 0) + (1 x 1)
bit 0 = 1 means sync. detected.
bit 1 = 0 means H & V sync. detected.
bit 2 = 0 means non interlaced format detected.
bit 3 = 1 means computer selected = "referenced" computer.
bit 4 = 1 means the "Ref computer" format is in the range of compatibility.
bit 5 = 0 means the FADE and TITLE effects are not active.
COMMAND
DESCRIPTION
MEASURES UNITY IN kHz.
DURATION OF A COMPUTER
LINE.
NUMBER OF LINE PER FIELD OF
COMPUTER.
COMPUTER STATUS.
INPUT NUMBER OF THE
COMPUTER WHICH STATUS IS
GIVEN.
VIDEO STATUS.
INPUT NUMBER OF THE VIDEO
WHICH STATUS IS GIVEN.
REFERENCE SYNC STATUS.
SELECTED INPUT (DISPLAYED)
MISCELLANEOUS CONTROL.
DEVICE TYPE.
"K" FIRMWARE VERSION.
"L" FIRMWARE VERSION.
"R" FIRMWARE VERSION.
"X" FIRMWARE VERSION.
VALUE
MIN MAX COMMAND RESPONSE
65535
0 U
0 65535 l
65535
0 t
0 31 P
25
0 c
16
0 p
22
0 v
0 25 n
25
0 I
4095
0 1Y
65535
0 ?
65535
0 K
65535
0 L
65535
0 R
65535
0 X
Chapter 10 : RS-232 PROGRAMMER'S GUIDE
EXAMPLE
ACTION EXPLANATION
UNIT---- READ UNITY OF MEASURE.
READ LINE FREQUENCY OF
CLD----
SELECTED COMPUTER.
READ LINE PER FIELD OF
CFD----
SELECTED COMPUTER.
CSTA---- READ COMPUTER STATUS.
COMPUTER STATUS IS FOR
CCHAN1
COMPUTER 1 INPUT.
VSTA13 READ THE VIDEO STATUS.
VIDEO STATUS IS FOR RGB/YUV
VCHAN7
INPUT.
REFERENCE SYNC IS COMPUTER
SCSTA1
1.
SELECTED INPUT IS COMPUTER
ICHAN1
1 INPUT.
CMD1 CUT ACTION.
READ DEVICE TYPE (9 = SMART
DEV9
FADE™).
K_ READ K VERSION.
L_ READ L VERSION.
R_ READ R VERSION.
V_ READ X VERSION.
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