how to write the ucf for clock signal

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jincyjohnson

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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
 

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;
 

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