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module top ( input clk, input key, output [5:0] led ); wire rstn, clk_cpu; assign rstn = key; wire [31:0] dbg_t6; clock_divider #(.N(1024 * 1024)) clkdiv ( .clk(clk), .rstn(rstn), .clk_div(clk_cpu) ); assign led[0] = ~clk_cpu; assign led[5:1] = ~dbg_t6[4:0]; cpu cpu ( .clk(clk_cpu), .rstn(rstn), .dbg_t6(dbg_t6) ); endmodule