Hey, On Thu, 2003-03-20 at 09:21, Iñaki wrote: > No no. I haven't explain right. I know what's DMA. The average time > between frames is 40 us and i need reduce it to 20 us because i need > precision. You'll never get 20us (microsec, 10^-6)) with a BTTV chip, you need scientific many-billion-EUR stuff for that (they use that stuff at the physics department of quite some universities - don't know for what). You'll get 20ms (millisec, 10^-3) at best. ;-). Ronald -- Ronald Bultje <rbultje@xxxxxxxxxxxxxxxxxxx> Linux Video/Multimedia developer