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ADV7341 : NO COLOR :( but beautifull black and white image :)

Question asked by lamonnis on May 23, 2013
Latest reply on May 28, 2013 by DaveD

Hi all,

 

I currently try to have colors on the CVBS output of the component.

My project is the following.

 

I receive a video on an ADV 7401 that sends synchros and pixels buses and clock pixel to an FPGA. The FPGA works.... and gives pixels buses and synchros to the ADV 7341. These synchro signals and pixels are like the ones send by ADV 7401. 

 

Video is a PAL square pixel signal 768x576 YCRCB 4:2:2 with a clock of 29.5MHz.

 

We succeed to have a correct Y on the output of the component but no color. On the oscilloscope, we can see we have no color modulation.

The ADV7341 receives color signal because when we map CRCB bus on the Y input of the component, we can see "colors in black and white" on the output.

 

We used table 83 to program the component.

 

I'll update my post soon with the programmed registers.

 

Thanks for your help.

 

Sébastien

 

Ce message a été modifié par : Sébastien LAMONNIER Register available in attach file. Thanks

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