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Diagnostic Software
5.
Description
The Codec generates a video signal with a specific signature and sends it to the output
of the digital board. The user selects which video input path must be routed on the
digital board and a video standard. The Codec encodes the video signal, checks the
signature, and returns a conclusion.
Note:
Before executing this nucleus the user must route the video signal on the analog
board with the proper nucleus.
Technical
-
Evaluate user input.
-
Reset the global variables, video memory.
-
Fill the video memory with a vertical colourbar.
-
Initialise the Codec SYNC-module.
-
Initialise the Codec MIXER-module.
-
Initialise the Codec VPP-module.
-
Initialise the Codec DENC-module.
-
Display the original image.
-
Initialise the VIP.
-
Initialise the Codec VFE-module.
-
Try to detect a sync in the VIP input.
-
Catch the received image in memory.
-
Display the received image.
-
Compare the received image with original image.
-
Create a conclusion.
Execution Time
3 seconds.
User Input
Video input of the digital board:
-
CVBS
-
YC
-
YUV
-
RGB
-
TEST (The video output will be routed to the video input on the digital board.)
-
1 to 9 - LECO Premier specific (see table below)
User input
Video input
Data path to VIP
1
RGB
SCART aux RGB in
2
YC
SCART aux Y/C in
3
CVBS
SCART aux CVBS
4
CVBS
Tuner
5
YC
Front Y/C
6
CVBS
Front CVBS
7
CVBS
SCART TV CVBS
8
YC
CE mode Y/C in
9
CVBS
CE mode CVBS in
10
XPORT
XPORT
Video standard:-
PAL
-
NTSC
When no input is given, the nucleus will take TEST for video input and PAL for video
standard.
Error
Number
Description
121500
Videoloop test succeeded.
121501
Wrong user input.
121502
The Codec SYNC-module cannot be initialised.
121503
The Codec MIXER-module cannot be initialised.
121504
The Codec VideoPostProcessor-module cannot be
initialised.
121505
The Codec DENC-module cannot be initialised.
121506
The VideoInputProcessor cannot be initialised.
121507
The VideoInputProcessor cannot detect a sync-signal.
121508
The Codec VideoFrontEnd-module cannot be initialised.
121509
The Codec VideoFrontEnd-module cannot capture a
video field.
121510
When selected the RGB video input: Error in colour red
signal and/or Error in colour green signal and/or Error in
colour blue signal. When selected one of the other video
inputs: Error in luminance signal (Y) and/or Error in
chrominance signal (U) and/or Error in chrominance
signal (V).
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