- Joined
- Jul 4, 2009
- Messages
- 16,520
- Helped
- 5,157
- Reputation
- 10,347
- Reaction score
- 5,211
- Trophy points
- 1,393
- Location
- Aberdyfi, West Wales, UK
- Activity points
- 139,690
That depends on what type of couter you choose. The falling edge would be my choice.
The Vout signal falls at the begining of each field. The odd/even signal changes once per field. A frame is two interlaced fields. If you assume the odd field is the one with line 1 in it, you use the falling Vout signal at the same time odd/even is high.
Brian.