module blink(
    input clk,
    output reg led
);

localparam MAX_COUNT = 50_000_000 - 1; // для 50 MHz → ~1 секунда

reg [26:0] cnt;// 2^26 = 67_108_864

always @(posedge clk)
begin
    if(cnt >= MAX_COUNT)
    begin
        cnt <= 0;
        led <= ~led;   // переключение LED
    end
    else
        cnt <= cnt + 1;
end

endmodule