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R5976214 VisuPlus Video Insertion Unit June 2003
6-2
6.1 Introduction
The host computer (E
OS or the control PC) communicates with one or more VISU
PLUS
via a serial
protocol.
There are two different communication protocols used towards the V
ISU
PLUS
. The first protocol is
used after start-up or restart, and takes care of downloading and starting the necessary V
ISU
PLUS
-
software. The other protocol is used after the previous one, and takes care of real time V
ISU
PLUS
-
operation:
Initialization: Hardware settings (output resolution, output phase, ...).
Video settings (contrast, brightness, freeze, ...).
RGB input settings (horizontal and vertical resolution, horizontal and vertical phase, ...).
Source placement.
The following sections describe this last protocol.
Please contact Barco for the download protocol.
6.2 Notation Conventions
The syntax elements of V
ISU
PLUS
commands are signified as follows:
< > Angled brackets surrounding a syntax item indicate a user-defined argu-
ment. Do not enter the brackets in commands.
<CR> The ASCII Carriage Return.
VisuNr VISU
PLUS
number in a serial chain. The first one has number 0.
IpuNr Input unit (video or RGB) number, which is a physical board in one of the
VISU
PLUS
of the chain.
The first IpuNr of a VISU
PLUS
(top most location) = 4 * VisuNr.
SrcNr Source number, the output of an image-generating device (camera, video,
computer image...), ranging from 0 to 63.
WinNr Window number, a real window on the screen, ranging from 0 to 63.
OpuNr Output unit number, which is a physical board in one of the VISU
PLUS
of the
chain. The first OpuNr of a VISU
PLUS
(top most location) = 4 * VisuNr.
Source A source is an output of an image-generating device (Camera, video,
TVDM…). In the VISU
PLUS
data structure, each source has a unique source
number: SrcNr
Window A VISU
PLUS
window is the image in one single X window or video window.
In the VISU
PLUS
data structure, each window has a unique window number:
WinNr
IPU An IPU is a physical board of a VISU
PLUS
. In the VISU
PLUS
data structure,
each IPU has a unique IPU number: IpuNr
Table 6-1
syntax elements of Visu
Plus
commands