module tick_div4(
input wire clk,
input wire rst,
output reg tick
);
reg [1:0] cnt;
always @(posedge clk) begin
if(rst) begin
tick <= 1'b0;
cnt <= 2'b0;
end else begin
cnt <= cnt + 1;
if(cnt == 3) begin
tick <= 1;
end else begin
tick <= 0;
end
end
end
endmodule