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28. Divide-by-4 Tick Generator

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Solving Approach

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Code

module tick_div4(
  input  wire clk,
  input  wire rst,
  output reg  tick
);
  reg [1:0] cnt;
  always @(posedge clk) begin
    tick <= rst ? 1'b0 : ( cnt == 2'd3);
    cnt  <= rst ? 2'd0 :  (cnt + 2'd1); 
    
  end
endmodule

 

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