Hi, i have a pci 6711 and I have to make the same project of Chirico, with 1us ~ for a pixel.
I have tried the second example but some problem occur, I have to use an external clock for future setup compatibility; I wire my external clock in pfi4 and my signal to ctr0; the result is confusing, I can change the ctr0 frequency (for now is wired to a pulse generator) but the pulse is unchanged, if I change my external clock I can observe a change.
If I understand correctly I use ci input term as gate, with a 20mhz timebase, if I wire ao out clock to CI input term I count how many signal I have in a pixel time; my signal have to change if I change the pixel time (change external clock pfi4) or signal frequency (ctr0).
I'm stuck.
Thanks for your help.