How do I enable the VBI Ancillary Data to the 656 stream?
We are writing a 1 to the ADF_EN, Address 0x62 bit 7 but nothing happens.
I note that that register has the comment "This functionality has not been tested." or something along those lines. I'll double check...
I confirmed that it should only take that bit, and should work but need to know more about what you are trying to decode:
1) What is your output bus width?
2) Have you confirmed you are getting a particular VBI data standard? Which one?
3) Have you put a scope on the data lines and watched them when you toggle that bit?
But I guess we had it all wrong (I think). We have VITC and Teletext that we want to transport. We have gone to the CP and enabled Vertical Blanking Pass Through. Thomas Tran just register and posted his question. It passes VITC (we haven't got to teletext yet) but it moves it from line 14 and 16 to line 10 and 12. And it corrupts it.
This thread has more or less merged with this one: http://ez.analog.com/thread/4873?tstart=0 so all replies will be there.
Retrieving data ...