how to write the ucf for clock signal

[jincyjohnson]

how to write the ucf for clock signal if there are 2 clock signals for spartan 3E fpga kit. the pin number of one clock is p122. How can the other clock signal can be included. plz reply

 

[rajavel.rv]

Hi, u are using two clk signal means its a differential clk or single ended clk signal; if u are using a single or differential its not a problem but the ucf is same for both pins;

example:

NET "clk_40mhz" loc="a15" | SLEW = FAST;