module jyh_4490_4_divider(clk,clk_out);
input clk;
output reg clk_out;
localparam TARGET=50000;
// localparam TARGET=1;
reg [19:0]counter=0;
initial begin
clk_out=0;
end
always @(posedge clk)
begin
counter=counter+1;
if(counter==TARGET)
counter=0;
clk_out=!clk_out;
endmodule