Data Translation DT3153, User Manual

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Programming Flowcharts
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Set the Standard Controls for the Input Channel
Set the input sync source with
OlFgSetInputControlValue.
Use the key OLC_FG_CTL_VIDEO_TYPE to select
a composite sync source and
OLC_FG_CTL_CSYNC_SOURCE to select the
composite sync on the current channel only.
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Set the top of the frame with
OlFgSetInputControlValue.
Use the key OLC_FG_CTL_FRAME_TOP to set the
first line of video, relative to the active video area, to
digitize for the selected input channel.
The default is 0.
Set the left of the frame with
OlFgSetInputControlValue.
Use the key OLC_FG_CTL_FRAME_LEFT to set the
first pixel of video, relative to the active video area, to
digitize for the selected input channel.
The default is 0.
Use the key OLC_FG_CTL_FRAME_HEIGHT to
set the number of lines per field of video to digitize
for the selected input channel.The default is 576
for 50 Hz, and 480 for 60 Hz.
Use the key OLC_FG_CTL_FRAME_WIDTH to set
the number of pixels per line of video to digitize for
the selected input channel. The default is 786 for 50
Hz, and 640 for 60 Hz.
Set the width of the frame with
OlFgSetInputControlValue.
Set the height of the frame with
OlFgSetInputControlValue.
Set the clock source with
OlFgSetInputControlValue.
Use the key OLC_FG_CTL_CLOCK_SOURCE
to set the pixel clock to internal.
Return to main flowchart.