module seg_decode( input wire clk, input wire rst_n, input wire [4:0] seg_value_1, input wire [4:0] seg_value_2, output reg [5:0] sel, output reg [7:0] seg ); parameter CNT_20US = 10'd999; reg [3:0] number; wire [2:0] change_l; wire [2:0] change_h; reg [9:0] cnt; //计时模块 always@(posedge clk or negedge rst_n)begin if(!rst_n)begin cnt <= 10'd0; end else if(cnt == CNT_20US)begin cnt <= 10'd0; end else begin cnt <= cnt + 10'd1; end end always @(posedge clk or negedge rst_n) begin if(!rst_n)begin sel <= 6'b011111; end else if(cnt == CNT_20US)begin sel <= {sel[0],sel[5:1]}; end else begin sel <= sel; end end always @(posedge clk or negedge rst_n) begin if(!rst_n)begin number <= 4'd0; end else begin case(sel) 6'b011111: number <= seg_value_1 % 10; 6'b101111: number <= seg_value_1 / 10; 6'b110111: number <= seg_value_2 % 10; 6'b111011: number <= seg_value_2 / 10; 6'b111101: begin if(seg_value_2 < seg_value_1) number <= 4'd15; else number <= change_l; end 6'b111110: begin if(seg_value_2 < seg_value_1) number <= 4'd14; else number <= change_h; end default:number <= 4'd0; endcase end end always @(posedge clk or negedge rst_n) begin if(!rst_n)begin seg <= 8'b1100_0000; end else begin case(number) 4'd0: seg <= 8'b1100_0000; 4'd1: seg <= 8'b1111_1001; 4'd2: seg <= 8'b1010_0100; 4'd3: seg <= 8'b1011_0000; 4'd4: seg <= 8'b1001_1001; 4'd5: seg <= 8'b1001_0010; 4'd14: seg <= 8'b1000_0110; 4'd15: seg <= 8'b1100_1110; default:seg <= 8'b1100_0000; endcase end end assign change_l = (seg_value_2 - seg_value_1) % 10; assign change_h = (seg_value_2 - seg_value_1) / 10; sel_drive sel_drive_u ( .clk (clk), .rst_n (rst_n), .sel_2 () ); endmodule

这段代码是一个用 Verilog HDL 编写的七段数码管驱动模块。它包括计时模块、数码管位选模块和数码管段选模块。其中，计时模块用于产生定时信号，数码管位选模块用于控制数码管位选信号，数码管段选模块用于根据输入的数值控制数码管的显示。这个模块包括了一些输入输出端口，比如时钟信号 clk、复位信号 rst_n、两个输入数值 seg_value_1 和 seg_value_2，以及两个输出信号 sel 和 seg。

相关问题

module ram_write ( input wire sys_clk , input wire sys_rst_n , input wire cnt_rcd, input wire [7:0] seg_cnt_data0 , input wire [7:0] seg_cnt_data1 , input wire [7:0] seg_cnt_data2 , input wire [7:0] seg_cnt_data3 , input wire [7:0] seg_cnt_data4 , input wire [7:0] seg_cnt_data5 , output reg [4:0] addr, output reg write_en , output reg [7:0] data_in ); reg [3:0] bite ; reg [3:0] times=0; always @(posedge sys_clk or negedge sys_rst_n) begin if (!sys_rst_n) begin write_en <= 1'b0 ; end else if (cnt_rcd) begin write_en <= 1'b1; times <= times + 1; end else begin write_en <= 1'b0; end end always @(posedge sys_clk or negedge sys_rst_n) if(!sys_rst_n) begin bite <='d0; addr <='d0; data_in <='d0; end else if(write_en) begin case(bite) 'd0: begin addr <= 2'd0+6times ; data_in<= seg_cnt_data0 ; bite<=bite + 1 ; end 'd1: begin addr <= 2'd1+6times ; data_in<= seg_cnt_data1; bite<=bite + 1 ; end 'd2: begin addr <= 2'd2+6times ; data_in<= seg_cnt_data2 ; bite<=bite + 1 ; end 'd3: begin addr <= 2'd3+6times ; data_in<= seg_cnt_data3 ; bite<=bite + 1 ; end 'd4: begin addr <= 2'd4+6times ; data_in<= seg_cnt_data4 ; bite<=bite + 1 ; end 'd5: begin addr <= 2'd5+6times ; data_in<= seg_cnt_data5 ; bite<=bite + 1 ; end default: ; endcase end endmodule修改代码

根据您提供的代码，我发现在更新 `addr` 时，使用的是 `6times`，这里应该是 `6*times`，需要在乘法符号前面加上 `*`，以正确计算地址。请尝试修改如下代码：

module ram_write (
    input wire sys_clk,
    input wire sys_rst_n,
    input wire cnt_rcd,
    input wire [7:0] seg_cnt_data0,
    input wire [7:0] seg_cnt_data1,
    input wire [7:0] seg_cnt_data2,
    input wire [7:0] seg_cnt_data3,
    input wire [7:0] seg_cnt_data4,
    input wire [7:0] seg_cnt_data5,
    output reg [4:0] addr,
    output reg write_en,
    output reg [7:0] data_in
);

    reg [3:0] bite;
    reg [3:0] times = 0;

    always @(posedge sys_clk or negedge sys_rst_n) begin
        if (!sys_rst_n) begin
            write_en <= 1'b0;
        end else if (cnt_rcd) begin
            write_en <= 1'b1;
            times <= times + 1;
        end else begin
            write_en <= 1'b0;
        end
    end

    always @(posedge sys_clk or negedge sys_rst_n) begin
        if (!sys_rst_n) begin
            bite <= 'd0;
            addr <= 'd0;
            data_in <= 'd0;
        end else if (write_en) begin
            case (bite)
                'd0: begin
                    addr <= 2'd0 + 6 * times;
                    data_in <= seg_cnt_data0;
                    bite <= bite + 1;
                end
                'd1: begin
                    addr <= 2'd1 + 6 * times;
                    data_in <= seg_cnt_data1;
                    bite <= bite + 1;
                end
                'd2: begin
                    addr <= 2'd2 + 6 * times;
                    data_in <= seg_cnt_data2;
                    bite <= bite + 1;
                end
                'd3: begin
                    addr <= 2'd3 + 6 * times;
                    data_in <= seg_cnt_data3;
                    bite <= bite + 1;
                end
                'd4: begin
                    addr <= 2'd4 + 6 * times;
                    data_in <= seg_cnt_data4;
                    bite <= bite + 1;
                end
                'd5: begin
                    addr <= 2'd5 + 6 * times;
                    data_in <= seg_cnt_data5;
                    bite <= bite + 1;
                end
                default: ;
            endcase
        end
    end

endmodule

请尝试使用上述代码，看看问题是否得到解决。

module seven_tube(clk, rst_n, data_in, sel, seg); input clk; input rst_n; input [23:0] data_in; //6个数码管显示：24位数据 output [2:0] sel; //数码管位选信号 output [7:0] seg; //数码管段选信号 wire clk_1khz; freq freq_dut( .clk(clk), .rst_n(rst_n), .clk_out(clk_1khz) ); seg_ctrl_v2 seg_ctrl_v2_dut( .clk_1khz(clk_1khz), .rst_n(rst_n), .data_in(data_in), .sel(sel), .seg(seg) ); endmodule

这段Verilog代码实现了一个七段数码管模块，用于显示数字。模块接收时钟信号`clk`、复位信号`rst_n`、24位的数据信号`data_in`，以及输出位选信号`sel`和段选信号`seg`。

首先，代码中实例化了一个频率分频模块`freq_dut`，将输入时钟信号`clk`和复位信号`rst_n`连接到该模块，并通过输出信号`clk_out`获得1kHz的时钟信号`clk_1khz`。这个1kHz的时钟信号用于驱动七段数码管的刷新。

接下来，代码实例化了一个`seg_ctrl_v2`模块，将1kHz的时钟信号`clk_1khz`、复位信号`rst_n`、24位的数据信号`data_in`以及输出的位选信号`sel`和段选信号`seg`连接到该模块。这个模块将根据输入的数据信号控制七段数码管的显示。

这段代码是一个简单的七段数码管模块的实现，你可以根据具体的需求进行修改和扩展。