top.v

在quaters下写的比较数的大小输出

`include "max.v"
`include "lev.v"
`include "rom_wave_out.v"

`timescale 1ns/1ns
`define data_width  4
module top(level,max_num, addr_counter,data,clk,rst,en);
    output [`data_width-1:0] level;
    wire [`data_width-1:0] level;
    
    output [`data_width-1:0] max_num;
    wire [`data_width-1:0] max_num;
    
    output [`data_width-1:0] data;
    wire [`data_width-1:0] data;
    
    input clk;
    wire  clk;
    
    input  rst;
    input  en;
    
     output [`data_width-1:0]    addr_counter;
     reg [`data_width:0]   addr_counter;
    
    reg  max_ena,out_max_en,read_en,lev_ena;
    reg[3:0]  state;
    
    
    parameter   idle=2'b00,
                get_data=2'b01,
                cal_max=2'b10,
                get_lev=2'b11;
         
     always @ (posedge clk or negedge rst)
       if(!rst)
          begin
              max_ena<=1'b0;
              out_max_en<=1'b0;
              read_en<=1'b0;
              lev_ena<=1'b0;
              state<=idle;
              addr_counter<=5'b0_0000;
          end
        else if (en)
        begin
           case(state)
               idle: //if (en) 
                        begin
                           state<=get_data;
                           read_en<=1'b1;
                           addr_counter<=5'b0_0000;
                        end
              //       else state<=idle;
               get_data:
                     begin
                        read_en<=1'b0;
                        max_ena<=1'b1;
                        addr_counter<=addr_counter+1'b1;
                        state<=cal_max; 
                     end
               cal_max:
                     if (addr_counter==5'b1_0001)
                        begin
                            max_ena<=1'b0;
                            lev_ena<=1'b1;
                            out_max_en<=1'b1;
                            state<=get_lev;
                        end
                    else
                       begin
                           read_en<=1'b1;
                           max_ena<=1'b0;
                           state<=get_data;
                       end
                get_lev:
                      begin
                          out_max_en<=1'b0;
                          lev_ena<=1'b0;
                          state<=idle;
                      end
                
                default: state<=idle;
          endcase
         end
        
        
                
     max   maxi(.max_num(max_num),.clk(clk),.rst(rst),.max_ena(max_ena),.out_max_en(out_max_en),.data_in(data));
     rom_wave_out   rom_wave_outi(.clk(clk),.read(read_en),.rst(rst),.addr( addr_counter),.data(data));
     lev   levi(.level(level),.lev_ena(lev_ena),.clk(clk),.rst(rst),.max_number(max_num));
endmodule