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ADV7180 NTSC video input

Question asked by yimiqiba on Jul 28, 2011
Latest reply on Aug 11, 2011 by yimiqiba

hi,all,

   I use adv7180 for video decoder ,and i  set VID_SEL [3:0]=000,so adv7180 can autodetect PAL B/G/H/I/D, NTSC (without pedestal), SECAM.And the value 0x7f write to Register 0x07,

    the other rsgisters set:

             Register Address (Hex)    Register Value (Hex)  
              00                                  01

              04                                  57 
              17                                  41  
              31                                  02 
              3D                                 A2 
              3E                                 6A 
              3F                                 A0 
              0E                                 80 
              55                                  81 
              0E                                 00

 

when i give a NTSC video  to adv7180 for input,the video that ouput from adv7180 is not normal,please see figure1.But,when i give a PAL video  to adv7180 for input,the video that ouput from adv7180 is normal,please see figure2.

 

figure3 is input video source.

 

 

How do I make it output a normal video when i give a NTSC video  to adv7180 for input?

 

thanks,

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