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adv7180 S-video output

Question asked by yimiqiba on Apr 26, 2011
Latest reply on Apr 27, 2011 by DaveD

hi,all,

  i am using ADV7180 as a video decoder,and i give color bar input to ADV7180,but the S-video output slants dark,the cvbs output and YCbCr output are normal.

  i juse only set these registers:

 

for composite input:

{0x00, 0x01},
{0x04, 0x57},

{0x0c, 0x12},

{0x0d, 0x88},
{0x27, 0x58},
{0x17, 0x41},
{0x31, 0x02},    
{0x3D, 0xA2},
{0x3E, 0x6A},
{0x3F, 0xA0},
{0x0E, 0x80},
{0x55, 0x81},
{0x0E, 0x00},

for component input:

{0x00, 0x09},
{0x0c, 0x12},
{0x0d, 0x88},
{0x27, 0xd8},

{0x31, 0x02},
{0x3D, 0xA2},
{0x3E, 0x6A},
{0x3F, 0xA0},
{0x0E, 0x80},
{0x55, 0x81},
{0x0E, 0x00},

for Svideo Input


{0x00, 0x08},
{0x04, 0x57},
{0x0c, 0x12},

{0x0d, 0x88},
{0x27, 0x58},
{0x31, 0x02},
{0x3D, 0xA2},
{0x3E, 0x6A},
{0x3F, 0xA0},
{0x58, 0x04},
{0x0E, 0x80},
{0x55, 0x81},
{0x0E, 0x00},

 

thanks

wahson

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