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Altera_Forum
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17 years ago

Clocked video output

Hello I'm trying to use the Clocked Video Output IP with the SOPC builder I need to output a NTSC (4:3 525 lines) video with separate sync signals. To create the separate sync signals the wiz...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Hello everyone,

I desperately need help with getting my embedded sync bt656 clocked out IP to work.

I have connected the test generator module found in the VP 8.0 reference example, and connected it to the Clocked Out video ip.

Then connected the Video output 8 bit bus to my ADV7171 video IC.( which has been tested with its internal color bar.)

The test generator is set to send := 422 ycrcb 720 by 486

The Video Clocked out IP is set to Embedded sync mode, 720 by 486 active picture and 8 bit , 2 symbols per beat and interlaced.

synce field one is

Active Picture line=20

Horizontal Blanking =138

Vertical Blanking = 20

Field zero

F rising=266

F falling =4

vertical blanking rising edge line =264

vertical blanking =19

All I end up getting is a black screen, and when brightness is turned up it is light green vertical lines. Please can some one help me with this problem , it will be greatly appreciated.

regards,

Nadeem