always@(Sel) begin case(Sel) 3'b000:Disp_Temp=HOURH; 3'b001:Disp_Temp=HOURH; 3'b010:Disp_Temp=4'b1010; 3'b011:Disp_Temp=MINH; 3'b100:Disp_Temp=MINL; 3'b101:Disp_Temp=4'b1010; 3'b110:Disp_Temp=SECH; 3'b111:Disp_Temp=SECL; endcase end

module xianshiqi( input clk , input rst_n , input [23:0]data,//待显示的数据 output wire[7:0] sel , output wire[7:0] seg ); //wire [24:0]data; // assign dig_seg = 8'd0; // assign dig_sel = 1'b0; reg [7:0] dig_sel; reg [7:0] dig_seg; localparam NUM_0 = 8'hC0, NUM_1 = 8'hF9, NUM_2 = 8'hA4, NUM_3 = 8'hB0, NUM_4 = 8'h99, NUM_5 = 8'h92, NUM_6 = 8'h82, NUM_7 = 8'hF8, NUM_8 = 8'h80, NUM_9 = 8'h90, NUM_A = 8'h88, NUM_B = 8'h83, NUM_C = 8'hC6, NUM_D = 8'hA1, NUM_E = 8'h86, NUM_F = 8'h8E, LIT_ALL = 8'h00, BLC_ALL = 8'hFF; parameter CNT_REF = 25'd1000; reg [9:0] cnt_20us; //20us计数器 reg [3:0] data_tmp; //用于取出不同位选的显示数据 // assign data = 32'hABCD_4413; //描述位选信号切换 //描述刷新计数器 always@(posedge clk or negedge rst_n)begin if(!rst_n)begin cnt_20us <= 25'd0; end else if(cnt_20us >= CNT_REF - 25'd1)begin cnt_20us <= 25'd0; end else begin cnt_20us <= cnt_20us + 25'd1; end end always@(posedge clk or negedge rst_n)begin if(!rst_n)begin dig_sel <= 8'hfe;//8'b1111_1110 end else if(cnt_20us >= CNT_REF - 25'd1)begin dig_sel <= {dig_sel[6:0],dig_sel[7]}; end else begin dig_sel <= dig_sel; end end assign sel = dig_sel; //段选信号描述 always@(posedge clk or negedge rst_n)begin if(!rst_n)begin data_tmp <= 4'd0; end else begin case(sel) 6'b11_1110:data_tmp <= data[ 3-:4]; 6'b11_1101:data_tmp <= data[ 7-:4]; 6'b11_1011:data_tmp <= data[11-:4]; 6'b11_0111:data_tmp <= data[15-:4]; 6'b10_1111:data_tmp <= data[19-:4]; 6'b01_1111:data_tmp <= data[23-:4]; default: data_tmp <= 4'hF; endcase end end always@(posedge clk or negedge rst_n)begin if(!rst_n)begin dig_seg <= BLC_ALL; end else begin case(data_tmp) 4'h0 : dig_seg <= NUM_0; 4'h1 : dig_seg <= NUM_1; 4'h2 : dig_seg <= NUM_2; 4'h3 : dig_seg <= NUM_3; 4'h4 : dig_seg <= NUM_4; 4'h5 : dig_seg <= NUM_5; 4'h6 : dig_seg <= NUM_6; 4'h7 : dig_seg <= NUM_7; 4'h8 : dig_seg <= NUM_8; 4'h9 : dig_seg <= NUM_9; 4'hA : dig_seg <= NUM_A; 4'hB : dig_seg <= NUM_B; 4'hC : dig_seg <= NUM_C; 4'hD : dig_seg <= NUM_D; 4'hE : dig_seg <= NUM_E; 4'hF : dig_seg <= NUM_F; default: ; endcase end end assign seg = dig_seg ; endmodule

该模块包括了一个时钟信号（clk）、一个复位信号（rst_n）、一个待显示的数据（data）、一个位选信号（sel）和一个段选信号（seg）。其中，时钟信号用于控制数码管显示的速度，复位信号用于在系统启动时将计数器清零...

module automation_lab_ex3( input clk, input rst_n, input [2:0] frq_sel, output [7:0] seven_segement_led, output [3:0] seven_segement_led_sel ); //code here localparam FRE26 = 3'b100; localparam FRE16 = 3'b010; localparam FRE6 = 3'b001; reg [7:0] key1_in; reg [3:0] led_sel; reg [28:0] cnt; reg [28:0] cnt_top; always @(*) begin case(frq_sel) FRE26: cnt_top = 28'b0100_0000_0000_0000_0000_0000_0000; FRE16: cnt_top = 28'b0100_0000_0000_0000_00; FRE6: cnt_top = 28'b0100_0000; default: cnt_top = 28'b0100_0000_0000_0000_0000_0000_0000; endcase end always @(posedge clk, negedge rst_n)begin if(!rst_n) begin cnt <= 28'b0; led_sel=4'b0001; end else if(cnt <= cnt_top) cnt <= cnt + 1'b1; else begin cnt <= 28'b0; case(led_sel) 4'b1000: begin led_sel <= 4'b0100; key1_in <= 8'b1100_0010; end 4'b0100: begin led_sel <= 4'b0010; key1_in <= 8'b1100_0011; end 4'b0010: begin led_sel <= 4'b0001; key1_in <= 8'b1100_0100; end 4'b0001: begin led_sel <= 4'b1000; key1_in <= 8'b1100_0001; end default: begin led_sel <= 4'b1000; key1_in <= 8'b1100_0001; end endcase end end assign seven_segement_led_sel = led_sel; automation_lab_ex1 instance1( .mode (4'b1000), .key1_in (key1_in), .led_out (), .seven_segement_led (seven_segement_led), .seven_segement_led_select () ) ; endmodule

- frq_sel：频率选择信号（3位） - 输出： - seven_segement_led：七段数码管的输出（8位） - seven_segement_led_sel：数码管选择信号（4位）在模块内部，首先定义了一些局部参数和寄存器，包括： - ...

给下面代码写个测试文件module fdiv10(clk,push,fdiv_10); input clk,push; output fdiv_10; reg[3:0]count10; always @(posedge clk,posedge push) begin if(push) count10<=count10; else if(count10<10) count10<=count10+1; else count10<=0; end assign fdiv_10=(count10==10)?1:0; endmodule module leds(clk,bcd1,bcd2,bcd3,bcd4,bcd5,bcd6,bcd7,bcd8,sel,a_g); input clk; input [3:0]bcd1,bcd2,bcd3,bcd4,bcd5,bcd6,bcd7,bcd8; output reg[2:0]sel; output reg[6:0]a_g; reg[3:0]temp; always @(posedge clk) begin sel<=sel+1; if(sel==5) sel<=0; end always @(sel) begin case(sel) 3'b000:temp<=bcd1; 3'b001:temp<=bcd2; 3'b010:temp<=bcd3; 3'b011:temp<=bcd4; 3'b100:temp<=bcd5; 3'b101:temp<=bcd6; 3'b110:temp<=bcd7; 3'b111:temp<=bcd8; default:temp<=bcd1; endcase case(temp) 0:a_g<=7'b1111110; //0 1:a_g<=7'b0110000; //1 2:a_g<=7'b1101101; //2 3:a_g<=7'b1111001; //3 4:a_g<=7'b0110011; //4 5:a_g<=7'b1011011; //5 6:a_g<=7'b1011111; //6 7:a_g<=7'b1110000; //7 8:a_g<=7'b1111111; //8 9:a_g<=7'b1111011; //9 default:a_g<=7'b1000111; //F endcase end endmodule module miaobiao(clk,clr,push,sel,a_g); input clk,clr,push; output[2:0]sel; output[6:0]a_g; wire push1,fdiv_10,clr1,cin2,cin4,cin6; wire[3:0]bcd1,bcd2,bcd3,bcd4,bcd5,bcd6,bcd7,bcd8; switch switchpush(clk,push,push1); switch switchclr(clk,clr,clr1); fdiv10 fdiv(clk,push1,fdiv_10); count100 count100(fdiv_10,clr1,bcd1,bcd2,cin2); count60_1 count60_1(cin2,clr1,bcd3,bcd4,cin4); count60_2 count60_2(cin4,clr1,bcd5,bcd6,cin6); count24 count24(cin6,clr1,bcd7,bcd8); leds leds(clk,bcd1,bcd2,bcd3,bcd4,bcd5,bcd6,bcd7,bcd8,sel,a_g); endmodule module switch(clk,keyin,keyout); input clk,keyin; output reg keyout; reg clk_use; reg[3:0]counter; always @(posedge clk) begin counter<=counter+1; if(counter==10) begin counter<=0; clk_use<=~clk_use; end end always @(posedge clk_use) keyout<=keyin; endmodule

// test case 3: push = 1, count10 push <= 1; clk <= 0; clr <= 0; #5; assert(a_g === 7'b1111110); assert(sel === 3'b000); // test case 4: push = 1, count10 >= 10 push <= 1; clk <= 0; clr ...

module project( clk, rst, ENA, init_num, SEL, SEG ); input clk; input rst; input ENA; input [3:0]init_num; output [1:0]SEL; output [7:0]SEG; reg clk_1Hz; reg [27:0]div_cnt; always@(posedge clk or negedge rst) if (!rst) div_cnt <= 0; else if (div_cnt >= 28'd99999999) // 1Hz——99999999 div_cnt <= 0; else div_cnt <= div_cnt + 1'b1; always@(posedge clk or negedge rst) if (!rst) clk_1Hz <= 0; else if (div_cnt == 28'd99999999) // 1Hz--99999999 clk_1Hz <= 1'b1; else clk_1Hz <= 0; reg [3:0]disp_num = 0; reg reverse = 0; always@(posedge clk_1Hz or negedge rst) begin if (!rst) disp_num <= init_num; else if (!ENA) ; else if (disp_num == 15) begin //正向计数到15 reverse <= 1; disp_num <= disp_num - 1; end else if (disp_num == 0 && reverse) begin //反向计数到0 reverse <= 0; disp_num <= disp_num + 1; end else if (!reverse) disp_num <= disp_num + 1; else if (reverse) disp_num <= disp_num - 1; end smg_disp_1 u1( .Clk(clk), .Reset_n(rst), .Disp_Data(disp_num), .SEL(SEL), .SEG(SEG) ); endmodule给代码进行注释

reg [3:0] disp_num = 0; //计数器的输出数值，默认为0 reg reverse = 0; //计数器的计数方向，默认为正向计数 always@(posedge clk_1Hz or negedge rst) begin //1Hz的时钟信号上升沿或同步复位信号下降沿触发 ...

assign squ_out = squ_onecycle_amp[9:0]; assign sel = phase[7:6]; squ_table u_squ_table(.address(address),.squ(squ_table_out)); always @(sel or squ_table_out) begin case(sel) 2'b00: begin squ_onecycle_amp = 9'h1ff + squ_table_out[8:0]; address = phase[5:0]; end 2'b01: begin squ_onecycle_amp = 9'h1ff + squ_table_out[8:0]; address = ~phase[5:0]; end 2'b10: begin squ_onecycle_amp = 9'h1ff - squ_table_out[8:0]; address = phase[5:0]; end 2'b11: begin squ_onecycle_amp = 9'h1ff - squ_table_out[8:0]; address = ~ phase[5:0]; end endcase end

sel表示相位的选择信号，用于控制正弦波的相位。u_squ_table是一个正弦波表格的实例化，用于存储和获取正弦波的值。最后的always块是根据不同的相位选择信号进行正弦波的计算和表格地址的选择。

//切换数码管段选 always @(posedge clk or negedge rst_n) begin if (!rst_n) begin seg_flag<=0; end else begin case (sel) 6'b111_110: begin seg_flag<=dout_time[19:18]; dot<=1'b1;end //小时十位 6'b111_101: begin seg_flag<=dout_time[17:14]; dot<=1'b0;end //小时个位 6'b111_011: begin seg_flag<=dout_time[13:11]; dot<=1'b1;end //分钟十位 6'b110_111: begin seg_flag<=dout_time[10:7]; dot<=1'b0;end //分钟个位 6'b101_111: begin seg_flag<=dout_time[6:4]; dot<=1'b1;end //秒十位 6'b011_111: begin seg_flag<=dout_time[3:0]; dot<=1'b1;end //秒个位 default :seg_flag<=0; endcase end end

这段代码是一个 Verilog HDL 的模块，用于控制数码管的显示。...在模块内部，使用了 case 语句根据 sel 的值选择需要显示的数据，然后将数据送到数码管的段选信号中。同时，还控制了数码管小数点的显示。

尝试注释timescale 1ns / 1ps module alu_main( input wire [31:0] rs1, input wire [31:0] rs2, input wire [31:0] sext_I, input wire [31:0] sext_S, input wire [31:0] sext_U, input wire [1:0] imm_sel, input wire I_sel, input wire [2:0] alu_ctrl, input wire [1:0] B_op, input wire branch_ctrl, input wire op_b_sel, input wire u_lui, input wire [31:0] pc, input wire [1:0] slt_op, input wire [1:0] B_u_op, input wire [1:0] S_op, output reg [31:0] c, output reg branch_alu ); reg [31:0] alu_B; reg [31:0] alu_A; always@(*)begin alu_A = rs1; if(op_b_sel)begin alu_B = rs2; end else if(~op_b_sel)begin case(imm_sel) 2'b00:begin alu_B = sext_I; end 2'b01:begin alu_B = sext_S; end 2'b10:begin alu_B = sext_U; if(u_lui) alu_A = 32'b0; else alu_A = pc; end endcase end end

else if (~op_b_sel) begin // 根据立即数类型选择信号选择不同的操作数 case (imm_sel) 2'b00: begin // I 型指令中的立即数 alu_B = sext_I; end 2'b01: begin // S 型指令中的立即数 alu_B = sext_S; ...

module aa(clk,sel,rst_n,seg,Q); input clk,rst_n,Q; output reg [2:0]sel; output reg [6:0]seg; reg [25:0]cnt; reg clk_n; always @(posedge clk_n) begin if(rst_n==0) sel <= 3'd0; else begin if(sel < 3'd6) sel <= sel+1'b1; else sel <= 3'd0; end end always @(posedge clk) begin if(cnt==26'd99_999) begin cnt <= 0; clk_n <= ~clk_n; end else cnt <= cnt+1'b1; end always @(Q or sel) begin if(Q==0) seg <= 7'b1000000; else case(sel) 3'b000 : seg <= 7'b1111001; 3'b001 : seg <= 7'b0100100; 3'b010 : seg <= 7'b0110000; 3'b011 : seg <= 7'b0011001; 3'b100 : seg <= 7'b0010010; 3'b101 : seg <= 7'b0000010; default seg <=7'b1111111; endcase end endmodule

这是一个 Verilog HDL 代码的模块，包含了一...整个模块包含三个 always 块，分别对应时钟、选择信号和输入信号的控制逻辑。其中，时钟块用于计时，选择信号块用于控制数码管的选择，输入信号块用于控制数码管的显示。

module automation_lab_ex3_tb(); reg clk; reg rst_n; reg [2:0] frq_sel; wire [7:0] seven_segement_led; wire [3:0] seven_segement_led_sel; reg right; reg [8:0] cnt; reg [3:0] seven_segement_led_sel_r; automation_lab_ex3 u1( .clk (clk), .rst_n (rst_n), .frq_sel (frq_sel), .seven_segement_led (seven_segement_led), .seven_segement_led_sel (seven_segement_led_sel) ); initial begin clk = 0; rst_n = 0; frq_sel = 0; cnt = 0; right = 1'd0; #10 rst_n = 1; #50 frq_sel = 3'b100; #2684354560 frq_sel = 3'b010; #2621440 frq_sel = 3'b001; #2550 rst_n = 0; right = (cnt == 11); #2550 if(right) $display("ex3_right"); else $display("ex3_error"); #108435456 $stop; end always #5 clk = ~clk; always @(posedge clk) begin seven_segement_led_sel_r <= seven_segement_led_sel; if(seven_segement_led_sel == 0) cnt <= cnt; else if(seven_segement_led_sel == {seven_segement_led_sel_r[0],seven_segement_led_sel_r[3:1]}) cnt <= cnt + 1; else cnt <= cnt; end endmodule

这段代码是一个Verilog模块，用于实现一...如果seven_segement_led_sel为{seven_segement_led_sel_r[0],seven_segement_led_sel_r[3:1]}，则cnt加1；否则，不改变cnt的值。以上是对代码的解释，请问还有其他问题吗？

写出以下代码的testbench module decode8(clk_50m,rst_n,c,seg,sel,out,led); input[4:0] c; input clk_50m,rst_n; output reg[6:0]out;//共阳，0点亮 output reg[7:0]seg;//共阴，1点亮 output reg[2:0]sel;//位选 output reg[3:0] led; reg[31:0] timer; reg clk_1hz; always@(posedge clk_50m) begin if(~rst_n) begin timer<=0;clk_1hz<=0;end else if(timer==32'd24)//仿真时可调小 begin timer<=0;clk_1hz<=~clk_1hz;end else begin timer<=timer+1;clk_1hz<=clk_1hz;end end always@(c) if(c[4]==0) begin case(c) 5'b00000:begin led=4'b0000; out =7'b1000000; end //0 5'b00001:begin led=4'b0001; out =7'b1111001; end //1 5'b00010:begin led=4'b0010; out =7'b0100100; end //2 5'b00011:begin led=4'b0011; out =7'b0110000; end //3 5'b00100:begin led=4'b0100; out =7'b0011001; end //4 5'b00101:begin led=4'b0101; out =7'b0010010; end //5 5'b00110:begin led=4'b0110; out =7'b0000010; end //6 5'b00111:begin led=4'b0111; out =7'b1111000; end //7 5'b01000:begin led=4'b1000; out =7'b0000000; end //8 5'b01001:begin led=4'b1001; out =7'b0010000; end //9 5'b01010:begin led=4'b1010; out =7'b0001000; end //A 5'b01011:begin led=4'b1011; out =7'b0000011; end //B 5'b01100:begin led=4'b1100; out =7'b1000110; end //C 5'b01101:begin led=4'b1101; out =7'b0010001; end //D 5'b01110:begin led=4'b1110; out =7'b0000110; end //E 5'b01111:begin led=4'b1111; out =7'b0001110; end //F default:begin led=4'b0000; out =7'b1111111; end endcase end else begin led =4'b0000; out =7'b1111111;end always@(posedge clk_1hz) if(c[4]==1) begin case(sel) 3'b000:begin sel =3'b001; seg =8'b01110110; end //H 3'b001:begin sel =3'b010; seg =8'b01111001; end //E 3'b010:begin sel =3'b011; seg =8'b00111000; end //L 3'b011:begin sel =3'b100; seg =8'b00111000; end //L 3'b100:begin sel =3'b101; seg =8'b00111111; end //0 default: begin sel =3'b000; seg=8'b00000000; end endcase end else seg=8'b00000000; endmodule

sel = 3'b000; #100; if(seg !== 8'b01110110) $display("Error in Testcase 18"); // Testcase 19: Display E on the 2nd segment c = 5'b10000; sel = 3'b001; #100; if(seg !== 8'b01111001) $display(...

ifndef MPP_STREAM_MUX define MPP_STREAM_MUX module mpp_stream_mux #( parameter NUM_CLIENTS = 2, parameter WIDTH = 8, parameter PIPE = 0, parameter [WIDTH-1:0] RESET = {WIDTH{1'b0}} ) ( input logic [ NUM_CLIENTS -1:0][WIDTH-1:0] ingress, input logic [ NUM_CLIENTS -1:0] ivalid, output logic [ NUM_CLIENTS -1:0] iready, output logic [WIDTH-1:0] egress, output logic evalid, input logic eready, input [$clog2(NUM_CLIENTS)-1:0] sel, input clk, input rst ); generate if (PIPE) begin : g_pipe logic reset_released; wire iready_pre = eready | ~evalid & reset_released; wire evalid_pre = ivalid[sel] | ~iready_pre & reset_released; assign iready = iready_pre << sel; always @(posedge clk or posedge rst) begin if (rst) begin evalid <= 1'b0; egress <= RESET; reset_released <= 1'b0; end else begin evalid <= evalid_pre; if (iready_pre & evalid_pre) egress <= ingress[sel]; reset_released <= 1'b1; end end end : g_pipe else begin : g_nopipe always_comb begin iready <= eready << sel; evalid <= ivalid [sel]; egress <= ingress [sel]; end end : g_nopipe endgenerate endmodule endif /// MPP_STREAM_MUX

其主要功能是将多个输入数据流（ingress）按照选择信号（sel）进行复用，输出到单个数据流（egress）中。其中，NUM_CLIENTS 参数指定了输入数据流的数量，WIDTH 参数指定了每个数据流的位宽，PIPE 参数指定是否启用...

设计以下两个模块的顶层模块 module lsd(clk,rst_n,led); input clk,rst_n; output reg [3:0] led; reg [25:0] cnt; reg clk_2s; always @ (posedge clk or negedge rst_n) if (!rst_n) begin cnt <='d0; clk_2s <= 0; end else if (cnt == 26'd24_999_999) begin cnt <= 0; clk_2s <= ~clk_2s; end else cnt <= cnt + 1'b1; always @ (posedge clk_2s or negedge rst_n) if (!rst_n) led <= 4'b0111; else led <= {led[0],led[3:1]}; endmodule module aa(clk,sel,rst_n,seg,Q); input clk,rst_n,Q; output reg [2:0]sel; output reg [6:0]seg; reg [25:0]cnt; reg clk_n; always @(posedge clk_n) begin if(rst_n==0) sel <= 3'd0; else begin if(sel < 3'd6) sel <= sel+1'b1; else sel <= 3'd0; end end always @(posedge clk) begin if(cnt==26'd99_999) begin cnt <= 0; clk_n <= ~clk_n; end else cnt <= cnt+1'b1; end always @(Q or sel) begin if(Q==0) seg <= 7'b1000000; else case(sel) 3'b000 : seg <= 7'b1111001; 3'b001 : seg <= 7'b0100100; 3'b010 : seg <= 7'b0110000; 3'b011 : seg <= 7'b0011001; 3'b100 : seg <= 7'b0010010; 3'b101 : seg <= 7'b0000010; default seg <=7'b1111111; endcase end endmodule

lsd 模块是一个计数器，每秒钟会将 led 显示的值向左移动一位，而 aa 模块则是根据输入的 Q 和 sel 信号来控制七段数码管的显示。其中 sel 信号是控制七段数码管显示哪一位数字的信号，而 Q 信号是控制显示的数字的...

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。...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。

timescale 1ns / 1ps module digital( input clk , input rstn , input [3:0] data1, input [3:0] data2, input [3:0] data3, input [3:0] data4, output reg [7:0] seg , output reg [3:0] sel ); reg [15:0]cn1; reg clk1k; always@(posedge clk or negedge rstn) //分频 begin if(!rstn)begin cn1<=0; clk1k<=0; end else if(cn1>=24999)begin //累积到24999 clk1k<=!clk1k; cn1<=0; end else begin cn1<=cn1+1; end end reg [3:0] tub; reg [2:0] state; always@(posedge clk1k or negedge rstn) begin if(!rstn)begin tub <= 0; state <= 0; sel <= 0; end else begin case(state) 0:begin tub<=data1;sel<=4'b0111;state<=1;end 1:begin tub<=data2;sel<=4'b1110;state<=2;end 2:begin tub<=data3;sel<=4'b1101;state<=3;end 3:begin tub<=data4;sel<=4'b1011;state<=0;end default:state<=0; endcase end end always@(posedge clk1k or negedge rstn) if(!rstn) seg<=8'b0000_0011; else case(tub) // 0-9 4'b0000 : seg <= 8'b0000_0011; 4'b0001 : seg <= 8'b1001_1111; 4'b0010 : seg <= 8'b0010_0101; 4'b0011 : seg <= 8'b0000_1101; 4'b0100 : seg <= 8'b1001_1001; 4'b0101 : seg <= 8'b0100_1001; 4'b0110 : seg <= 8'b0100_0001; 4'b0111 : seg <= 8'b0001_1111; 4'b1000 : seg <= 8'b0000_0001; 4'b1001 : seg <= 8'b0000_1001; default:seg<=8'b0000_0011; endcase endmodule上述代码是当输入数据为0x1346时数码管正确显示0x1346，请告诉我怎么将它修改为当输入数字为十进制数数码管能正确显示数字的代码。例如输入为十进制数4567，数码管正确显示4567

output reg [3:0] sel ); reg [15:0]cn1; reg clk1k; reg [3:0] tub; reg [2:0] state; always@(posedge clk or negedge rstn) begin if(!rstn) begin cn1<=0; clk1k<=0; end else if(cn1>=24999)...

module fsj_5(RA, wt, rd, m, rst, clk, d, out, sel); input [1:0]RA; //通用寄存器选择 input rd, wt, rst, clk; //读开关，写开关，置零开关，时钟 input [1:0]m; //功能选择 input [15:0]d; //输入 output reg [7:0]out; //数码管输出 output reg [2:0]sel; //数码管3-8译码器输出 reg [3:0]data; reg [15:0]R0; reg [15:0]R1; reg [15:0]R2; reg [15:0]R3; reg [15:0]mid; reg [15:0]counter; reg clk_alt; reg [2:0]l; //变频段 always @(negedge clk) begin if(l>=7) l=0; else l=1+l; clk_alt=l[2]; end //读写操作 always @(RA or rd or wt) begin case(RA) 0:begin if(rd==1&&wt==0) R0=d; else if(rd==0&&wt==1) mid=R0; end 1:begin if(rd==1&&wt==0)R1=d; else if(rd==0&&wt==1)mid=R1; end 2:begin if(rd==1&&wt==0) R2=d; else if(rd==0&&wt==1) mid=R2; end 3:begin if(rd==1&&wt==0) R3=d; else if(rd==0&&wt==1) mid=R3; end endcase end //PC寄存器 always @(negedge clk_alt) begin if(rst==0)counter=0; else case(m) 1:counter=counter-1; 2:counter=counter+1; 3:counter=mid; endcase end //output always @(negedge clk) begin sel=sel+1; if(sel>=8) sel=0; case(sel) 0:data=counter[15:12]; 1:data=counter[11:8]; 2:data=counter[7:4]; 3:data=counter[3:0]; 4:data=mid[15:12]; 5:data=mid[11:8]; 6:data=mid[7:4]; 7:data=mid[3:0]; endcase end //译码 always case (data) 0:out=63; 1:out=6; 2:out=91; 3:out=79; 4:out=102; 5:out=109; 6:out=125; 7:out=7; 8:out=127; 9:out=111; 10:out=119; 11:out=124; 12:out=57; 13:out=94; 14:out=121; 15:out=113; endcase endmodule

同时，还使用了一个变频段变量 l 和一个三到八译码器输出变量 sel。 Verilog HDL 是一种硬件描述语言，用于描述数字电路和系统。该代码实现了一个非常基本的计数器电路，可以作为初学者学习 Verilog HDL 的参考。

always@(Sel) begin case(Sel) 3'b000:Disp_Temp=HOURH; 3'b001:Disp_Temp=HOURH; 3'b010:Disp_Temp=4'b1010; 3'b011:Disp_Temp=MINH; 3'b100:Disp_Temp=MINL; 3'b101:Disp_Temp=4'b1010; 3'b110:Disp_Temp=SECH; 3'b111:Disp_Temp=SECL; endcase end

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