I have got the Altium LiveDesign Evaluation Board with Spartan 3. The board has got a clock for the FPGA and I think that connects to a general propose pin but I am not sure about that. Can I use it for general CLK in my projects or I have to put an external clock source?
No big deal...!!! you can use it if its connected to FPGA pin....if its not connected to global clock pin then the clock performacne (max frequency ans swek) may not be as ggod as GCLK pin. Alternative is use buffered clock and use it for all modules..