comparing frequency of two clocks

Discussion in 'VHDL' started by arant, Aug 14, 2006.

  1. arant

    arant Guest

    Hi Everyone,

    Does anyone have any idea of how to compare two reference clocks using
    completely digital logic .The problem is something like this

    There are two slow ref clocks (Khz) CLKA (rc clock) CLKB (crystal
    clock) and a fast sys_clk (pll clock) Mhz range

    If freq CLKA > freq CLKB then
    op1 = 1;
    elsif freq CLKA < freq CLKB op2 = 1
    else
    op3 = 1;
    end if;

    Eagerly awaiting some solutions
     
    arant, Aug 14, 2006
    #1
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