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ADV7180 & ADV7393 Interface

Question asked by siva.thiru on Feb 24, 2015
Latest reply on Feb 25, 2015 by GuenterL

Hi,

 

I have interfaced the ADV7180 and ADV7393 as below configuration,

CVBS I/P ==> ADV7180 ==> 16-bit YCrCb O/P

16-bit YCrCb I/P ==> ADV7393 ==> RGB O/P

RGB I/P ==> AD725 ==> CVBS O/P

 

Case-1: Refer the attached color test pattern image generated from the ADV7393.

The output color is changed what its expected (default).

Register settings for ADV7393 color test pattern generation as configured as below,

  

ADV7393 COLOR TEST PATTERN
ADDRESSDATA
1702
001C
82C9
8440
0210
8011
8CCB
8D8A
8E09
8F2A

 

 

Case-2: The Video decoder and encoder are interfaced as above mentioned configuration.

The same color difference is occurred in video encoder RGB output, Refer the attached original image given to video decoder as CVBS input and RGB output image from the video enocder.

The register settings of video decoder and encoder as configured as below,

  

ADV7180
ADDRESSDATA
0000
0309
04CC
3112
520D
5801
8F50
F30F
F43F
F806

 

  

ADV7393
ADDRESSDATA
1702
001C
0210
8011
82E1
8303
8408
8640
8730
8828
8A0C

 

 

Please suggest to solve this problem and register settings details.

 

Regards,

Siva

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