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How use TVP5146 to display frames of size 768x576?

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I want to get size of 768*576 in our project.

In the manual, I found a mode named 'Square sampling' , it can get  768 active pixels per line.

I try the register settings according to the manual, but I got no picture, the screen is grey.

Belows are my setting, 

reg address: 0E, val: 0E
reg address: 10, val: 80
reg address: 11, val: 80
reg address: 12, val: 80
reg address: 14, val: 80
reg address: 16, val: 67
reg address: 17, val: 00
reg address: 18, val: B8
reg address: 19, val: 02
reg address: 1E, val: 01
reg address: 1F, val: 00
reg address: 20, val: 04
reg address: 21, val: 00
reg address: 22, val: 6F
reg address: 23, val: 02
reg address: 24, val: 17
reg address: 25, val: 00
reg address: 32, val: 0C
reg address: 33, val: C1
reg address: 34, val: 11
reg address: 35, val: EE
reg address: 36, val: AF
reg address: 37, val: FF
reg address: 38, val: FF
reg address: 39, val: 01
reg address: 74, val: 88

Please  tell me the detail setting of registers.


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