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[/] [qaz_libs/] [trunk/] [BFM/] [src/] [clock/] [tb_clk.v] - Blame information for rev 34

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1 34 qaztronic
// --------------------------------------------------------------------
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//
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// --------------------------------------------------------------------
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`timescale 10ps/1ps
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module
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  tb_clk
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  #(
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    parameter CLK_DUTY_CYCLE  = 50,
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    parameter CLK_PERIOD      = 32
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  )
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  (
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    output reg clock
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  );
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  initial
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    clock <= 1'b1;
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  always
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    if(CLK_DUTY_CYCLE == 50)
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      #(CLK_PERIOD/2) clock <= ~clock;
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    else
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      if(clock)
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        #(CLK_PERIOD * (CLK_DUTY_CYCLE/100)) clock <= ~clock;
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      else
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        #(CLK_PERIOD * ( (100 - CLK_DUTY_CYCLE)/100 ) ) clock <= ~clock;
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endmodule
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