Digital password lock Verilog design + simulation + on board verification

Digital code lock ：
The functions are as follows ：

This design can be used in vivado、ISE、quartus Create , The following is the vivado Project created under ：

The project simulation 、 The board has been verified and there is no problem .

Digital code lock code , The top design ：

module top_lock(clk,dxuan,wxuan,led,beep,row,col);
input clk;
input [3:0] row;
output beep;
output [3:0] col;
output led;
output [5:0] wxuan;
output [7:0] dxuan;

wire [4:0] key_out;
wire [8:0] number_key;
wire [3:0] row;
wire [3:0] cow;
wire lock;
wire check;
wire reset;
wire clear_flag;
wire state_lock;
wire [3:0]rece_cnt;
wire rece_flag;

wire [3:0] disp_in1;
wire [3:0] disp_in2;
wire [3:0