Dynamic power dissipation using X power in xilinx ise

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microtronics7

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Dear Sir,

I am simulating a multiplier in xilinx ise. i want to find dynamic power and plot it against time and frequency using xpower. But it shows 0 dynamic power. I used a clock to feed the inputs and generated a vcd file by the following codes in test bench;


$dumpfile("vcdfile.VCD");
$dumpvars(0, tb_generator_v.uut);

But often the vcd file shows to be 0 kb. When i use xpower to open it then it shows again to be 0 power.

Pls explain in detail since i am a novice.


Pls help!!!!
 

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