Cyclone 3 (ep3c40f84c7/c8)

Hi Cris,

I have looked at your reply thanks.

In Quartus/clocks

I find that my main pll o/p is 100MhZ

I have a crystal (on pcb)clock input of 50Mhz

An altera reserved Tck of 100MHz

We used a de1 pcb first with a cyclone 2 (50Mhz Crystal i/p).

I dont know that met slow timing for are application,

now we are using a cyclone 3 as mentioned

I think the 50Mhz signal is fed into the pll

So it doesnt appear that i will establish my timing

because of the 50Mhz clock,Could I increase the crystal

Mhz to say 100MHZ, but the would't it mess up the pll ?

Thanks

Again