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MSD-501/502 Command Guide
3.3.7 Input timing
@AIS / @AIT
Automatic measurement
Function
Automatic measurement of start position
and display period.
Format
@AIS, ch
Return value
@AIS, ch
Parameter
ch: Input channel
mode: Measurement mode
If you select "NEXT ASPECT", the next aspect ratio will be selected in order every time
the automatic measurement is executed. If you do not set any mode parameter, "NEXT
ASPECT" mode will be applied.
Example
@AIS,4
@AIS,4
@AIT,4,0
@AIT,4,0
@AIS,4
@ERR,7
Remarks
Those commands are valid only when analog RGB/analog YPbPr signals are input.
@GHT / @SHT
The total number of horizontal dots
Function
Getting
Format
@GHT
Return value
@GHT, h_total_1, h_total_2, h_total_3,
h_total_4, h_total_5
Parameter
h_total_1-5 / h_total: The number of horizontal dots
ch: Input channel
Example
@GHT
@GHT,2200,2200,0,2640,1344
@SHT,5,1344
@SHT,5,1344
@SHT,5,1344
@ERR,3
Remarks
Getting command will acquire statuses of all channels.
Setting commands are valid only when analog RGB/analog YPbPr signals are input.
40
4 = IN4, 5 = IN5
-1 = NEXT ASPECT, 0 = 4:3, 1 = 5:4, 2 = 5:3, 3 = 16:9, 4 = 16:10
400 to 4125 (sampling block should be 13 MHz to 162 MHz)
[Default]: depends on input signals
0 = All analog inputs, 4 = IN4, 5 = IN5
Automatic measurement considering aspect
ratio
@AIT, ch
@AIT, ch (, mode)
Measuring start position and display period of IN4
automatically.
Completed normally.
Measuring IN4 input timing setting at the aspect
ratio of "4:3" automatically.
Completed normally.
If automatic measurement fails, an error is replied.
Setting
@SHT, ch, h_total
@SHT, ch, h_total
Getting the total number of horizontal dots.
"0" will be replied to channels without input
signals.
Setting the total number of IN5 horizontal
dots to "1344".
Completed normally.
If analog RGB signals or analog YPbPr
signals are not input, an error will be replied.
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