`default_nettype none `timescale 1ns / 1ps module top_level ( input wire clk, input wire uart_txd_in, output logic uart_rxd_out ); logic probe0; logic [3:0] probe1; logic [7:0] probe2; logic [15:0] probe3; always @(posedge clk) begin probe0 <= probe0 + 1; probe1 <= probe1 + 1; probe2 <= probe2 + 1; probe3 <= probe3 + 1; end manta manta_inst ( .clk(clk), .rst(0), .rx(uart_txd_in), .tx(uart_rxd_out), .probe0(probe0), .probe1(probe1), .probe2(probe2), .probe3(probe3)); endmodule `default_nettype wire