200 Chapter 12 Using Special Sync Output
PSHD 100 // set pulse horizontal position at 100 pixels from leading
edge of horiztonal sync pulse, in range from
0 <=
PSHD
<(
HTOT
-
PSPW
- 1)
PSVD 50 // set the pulse vertical position at 50 lines from leadinig
edge of vertical blanking, in range from 0<=PSVD<(VTOT-1)
ALLU // apply the settings
To set the lines on which the probe pulse occurs:
1. Send the appropriate command:
2. Send the ALLU
command to apply the setting.
Set the probe pulse to occur Command
Once per frame
PSPM 0
Once every active line
PSPM 1
Once every line
PSPM 3
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