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 four_to_one_selector(input [3:0] data_in, input [1:0] sel, output reg data_out); wire w1, w2; // first 2-to-1 data selector // sel[0] controls which input is selected assign w1 = (sel[0] == 0) ? data_in[0] : data_in[1]; // second 2-to-1 data selector // sel[1] controls which input is selected assign w2 = (sel[1] == 0) ? data_in[2] : data_in[3]; // final output // sel[1] controls which input from the second selector is selected always @ (sel or data_in) case (sel) 2'b00: data_out = data_in[0]; 2'b01: data_out = data_in[1]; 2'b10: data_out = w1; 2'b11: data_out = w2; endcaseendmodule激励文件

reg [3:0] data_in; reg [1:0] sel; // Outputs wire data_out; // Instantiate the design under test (DUT) four_to_one_selector uut( .data_in(data_in), .sel(sel), .data_out(data_out) ); ...

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 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

这是一个Verilog HDL代码...本模块还使用了always块来描述计数器和位选信号的切换逻辑，以及段选信号的映射逻辑。在数码管的位选信号和段选信号被计算出来之后，assign块将其输出到sel和seg端口上，完成数字的显示。

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： - ...

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 ...

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; ...

8'b1111_1110:data_tmp <= data[ 3-:4]; 8'b1111_1101:data_tmp <= data[ 7-:4]; 8'b1111_1011:data_tmp <= data[11-:4]; 8'b1111_0111:data_tmp <= data[15-:4]; 8'b1110_1111:data_tmp <= data[19-:4]; 8'b1101_1111:data_tmp <= data[23-:4]; 8'b1011_1111:data_tmp <= data[27-:4]; 8'b0111_1111:data_tmp <= data[31-:4]; 这部分是什么意思

这部分代码是将待显示的32位数据data按照不同的位选信号sel，分别取出对应的4位数据data_tmp。其中，8'b1111_1110对应的是最低位（第0位），8'b1111_1101对应的是第1位，以此类推，最高位（第7位）对应的是8'b0111_...

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。

解释以下数电代码的意思always@(music_sel) begin case(music_sel)//根据播放的歌曲序号在数码管上显示 1:codeout<=8'b00110000; 2:codeout<=8'b01101101; default:codeout<=8'b00000000; endcase end

这段 Verilog HDL 的代码是一个 always 块，它的触发条件是 music_sel 信号的变化。根据 music_sel 的值，使用 case 语句来判断当前应该在数码管上显示什么数据。具体来说，当 music_sel 的值为 1 时，将 codeout ...

//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。

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？

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

reg [1:0] mux_out_reg; always @ (*) begin case(sel) 2'b00:mux_out_reg = d3; 2'b01:mux_out_reg = d2; 2'b10:mux_out_reg = d1; 2'b11:mux_out_reg = d0; default : mux_out_reg = d0; endcase end assign mux_out = mux_out_reg;

相关推荐

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

reg [1:0] mux_out_reg; always @ (*) begin case(sel) 2'b00:mux_out_reg = d3; 2'b01:mux_out_reg = d2; 2'b10:mux_out_reg = d1; 2'b11:mux_out_reg = d0; default : mux_out_reg = d0; endcase end assign mux_out = mux_out_reg;

相关推荐

SEL-3505 Instruction Manual.zip_SEL-3505-3_real-time

matlab灰色关联度代码-SEL_public:SEL_public

matlab女孩代码-sex_sel:sex_sel

try: test_id = unique_spks[rand_sel[i_sel]] except: continue

解释以下数电代码的意思always@(music_sel) begin case(music_sel)//根据播放的歌曲序号在数码管上显示 1:codeout<=8'b00110000; 2:codeout<=8'b01101101; default:codeout<=8'b00000000; endcase end

最新推荐

合信TP-i系列HMI触摸屏CAD图.zip

BSC关键绩效财务与客户指标详解

管理建模和仿真的文件

【实战演练】俄罗斯方块：实现经典的俄罗斯方块游戏，学习方块生成和行消除逻辑。

卷积神经网络实现手势识别程序

绘制企业战略地图：从财务到客户价值的六步法

"互动学习：行动中的多样性与论文攻读经历"

【实战演练】井字棋游戏：开发井字棋游戏，重点在于AI对手的实现。

transformer模型对话

BSC关键绩效指标详解：财务与运营效率评估