AnsweredAssumed Answered

ADV7181C CVBS color issue

Question asked by MotusLab on Mar 5, 2014
Latest reply on Mar 5, 2014 by GuenterL

Hello,

 

I've some issue on ADV7181C releated to color in CVBS mode.

 

After startup and configuration images come just in black and white.

Disabling the colour kill and setting up the register 0x67 @ 0xA1 after some while (2/3 minutes) colour is back even if the quality in NTSC mode is not so good (PAL is better).

Below my initial configuration file

 

{0x00, 0x00}}, //CVBS IN

{0x03, 0x04}}, //16-bit @ LLC2 4:2:2

{0x04, 0xF4}}, //Enable SFL

{0x17, 0x41}}, //select SH1

{0x1D, 0x47}}, //Enable 28MHz Crystal

{0x31, 0x02}}, //Clears NEWAV_MODE, SAV/EAV  to suit ADV video encoders

{0x3A, 0x17}}, //Set Latch Clock & power down ADC 1 & ADC2 & ADC3

{0x3B, 0x81}}, //Enable internal Bias

{0x3D, 0xA2}}, //MWE Enable Manual Window, Colour Kill Threshold to 2

{0x3E, 0x6A}}, //BLM optimisation

{0x3F, 0xA0}}, //BGB

{0x86, 0x0B}}, //Enable stdi_line_count_mode

{0xF3, 0x01}}, //Enable Anti Alias Filter on ADC0

{0xF9, 0x03}}, //Set max v lock range

{0x0E, 0x80}}, //ADI Recommended Setting

{0x52, 0x46}}, //ADI Recommended Setting

{0x54, 0x00}}, //ADI Recommended Setting

{0x7F, 0xFF}}, //ADI Recommended Setting

{0x81, 0x30}}, //ADI Recommended Setting

{0x90, 0xC9}}, //ADI Recommended Setting

{0x91, 0x40}}, //ADI Recommended Setting

{0x92, 0x3C}}, //ADI Recommended Setting

{0x93, 0xCA}}, //ADI Recommended Setting

{0x94, 0xD5}}, //ADI Recommended Setting

{0xB1, 0xFF}}, //ADI Recommended Setting

{0xB6, 0x08}}, //ADI Recommended Setting

{0xC0, 0x9A}}, //ADI Recommended Setting

{0xCF, 0x50}}, //ADI Recommended Setting

{0xD0, 0x4E}}, //ADI Recommended Setting

{0xD1, 0xB9}}, //ADI Recommended Setting

{0xD6, 0xDD}}, //ADI Recommended Setting

{0xD7, 0xE2}}, //ADI Recommended Setting

{0xE5, 0x51}}, //ADI Recommended Setting

{0xF6, 0x3B}}, //ADI Recommended Setting

{0x0E, 0x00}}, //ADI Recommended Setting

{0x8F, 0x50}}, //ADI Recommended Setting

 

 

Any suggestion on how address me to a solution?

 

Thanks

 

Claudio

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