Showing posts with label VBIT USB Teletext inserter analogue TV. Show all posts
Showing posts with label VBIT USB Teletext inserter analogue TV. Show all posts

Tuesday, March 2, 2010

VBIT - USB Teletext inserter

From blogpics

VBIT, as the pocket inserter is now called is up and running as far as the hardware is concerned. A few fixes to the power and pullups and a signal line that had to be added and it is now producing vbi. What sort of vbi I have no idea as my ex-military scope doesn't do TV signals. But it means that the video path and the FIFO are all operating. Now I only have two things left to do.

1) Fit it into a case
2) Write the software.

This week I'm going to try generating packet 8/30/1 and maybe some Softel optouts as those are simple single packets. But the full text service could take a few months to implement assuming that the processor can work fast enough. And when summer comes I won't want to spend all the evening picking through code.