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///// 1 secone blinking light
module sec (input CLOCK_50, output reg [8:0] LEDG);
integer count=0;
initial LEDG[0]=1'b0;
always @(posedge CLOCK_50)
begin
count=count+1;
if(count == 50_000_000)
begin
count=0;
if(LEDG[0]) LEDG[0]=1'b0;
else LEDG[0]=1'b1;
end
end
endmodule