Hello everyone,
Two questions:
1.
I use TVP7002 to interface with PC graphics input (1280x720@60Hz). Everything is ok except there are some black lines in vertical direction.
The horizontal direction is ok, TVP7002 use embeded sync to interface with DM365 vpfe.
I try to change the VBLK start line and VBLK duration registers, but it seems that VBLK start line can not be a negative value like TVP5150, because my analogue input source my not be very accurate, so there are always black lines in the top of video.
I also try to ajust the VBLK duration register, but it does not any affect. that is value 0 is has the same result with value 250, why?
2.
Due to the first problem, TVP7002's VBLK start line can not be a negative value like TVP5150, I change the interface type between TVP7002 and DM365 vpfe from CCDC_BT1120 to CCDC_YCBCR_SYNC_16 and try adjust the right position from DM365 Vpfe ,
but I found that there is a black area in horzontal and vertical of my capture video, it is worse than using CCDC_BT1120 .
I try to change the value of Start Pixel Horizontal (SPH) and Start Line Vertical - Field 0 (SLV0) SLV1, but does not do any work too whatever value you set.
Can anyone help me?
Thanks in advance.