RMV Operations Manual Revision Copyright illunis LLC, 2014
Page 105
7.2: On Screen Displays
On Screen Line Plot
The On Screen Line Plot (OSLP) is used to
overlay a graphical plot of video data onto the video
image. The OSLP can be scaled and offset so that it
may be placed anywhere within the video image. The
OSLP Offset register (0x07) is used to select the
base line = offset from the top of the image in units of
16 lines (max is 4080 lines). The OSLP Scale regis-
ter reduces the line data to fit the limits of the video
image. A Scale of 0xFF is unity (1.0). A Scale of
0x80 is ½ and 0x40 is ¼. The scale and offset allow
12 bit data to be drawn on a 4Kx4K image. Only the
first 4096 data points of a line may be displayed, lines
longer that 4096 will wrap.
Serial Commands
Target
Index
Command
R/W Description
04
11
OSD lines
W
0x0000 disable line plot
0x0001 line plot
0x0008 draw as line
0x0009 draw as filled
04
12
Line Plot Offset
R/W
04
13
Line Plot Scale
R/W
04
14
Line Plot Line of Interest
R/W
Quick FAQ’s:
►The line plot display is one frame behind it’s
measurement frame. This is due to the fact the the
data must be measured, then stored for display on
the following frame.
►The line plot can be scaled from 1X to 1/4096X
VIDEO OFFSET
8-bit register
(16 lines per unit)
VIDEO LINE selected to overlay
VIDEO SCALE
8-bit register
0xFF = 1.0
VIDEO LINE DATA
Line or Bar Format
