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ADV7180 + ADV7391 SFL function

Question asked by JerryS on May 16, 2013
Latest reply on May 16, 2013 by DaveD

Hello,

 

I used ADV7180 + ADV7391 for DVR application. When I connected NTSC camera CVBS input and ADV7391 CVBS output with SFL mode, the display is ok.

I found PAL camera CVBS input and ADV7391 CVBS output with SFL mode, the monitor display is Black/White without color.

I had tried to inverter ADV7180 SFL signal during SFL mode, but it is not any help.

 

Finially, when I disable ADV7391 SFL function, the output is normal with color.

May I know what's going on SFL function with PAL signal input?

 

ADV7180 and ADV7391 initial setting as attached and below.42 00 00 ; INSEL = CVBS in on AIn 1

42 04 57 ; Enable SFL

42 17 41 ; select SH1

42 31 02 ; Clears NEWAV_MODE, SAV/EAV  to suit ADV video encoders

42 3D A2 ; MWE Enable Manual Window, Colour Kill Threshold to 2

42 3E 6A ; BLM optimisation

42 3F A0 ; BGB

42 0E 80 ; ADI Recommended Write

42 55 81 ; ADI Recommended Write

42 0E 00 ; ADI Recommended Write

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