12 localparam LOG2DELAY = 22;
14 reg [BITS+LOG2DELAY-1:0] counter = 0;
15 reg [BITS-1:0] outcnt;
17 always @(posedge clk) begin
18 counter <= counter + EN;
19 outcnt <= counter >> LOG2DELAY;
22 assign {LED1, LED2, LED3, LED4, LED5} = outcnt ^ (outcnt >> 1);