非软件第二次实验课讲义

1、实验一 四位拨码开关控制显示数字seg7ment_sub( input wire3:0num,output reg 6:0 a_to_g );0:1:2:3:4:5:6:7:8:9: a_to_g=7b0000100; hB:a_to_g=7b1100000; hC:a_to_g=7b0110001; hE:a_to_g=7b0110000; hF:seg7ment_top(input wire3:0sw, outputwire6:0a_to_g,output wire3:0an );assign an=4b0000; .a_to_g 实验二 拨码开关控制数字0F 循环说明：clkBTN0做复

2、位，无进位，四个拨码开关决定对应的示数字 0F） clk_sw_7seg_sub( input output reg3:0an, an = SW;always (*) hB:a_to_g=7b1100000; hC:a_to_g=7b0110001; hE:a_to_g=7b0110000; hF:clk_sw_7seg_top(inputclk, input clr,/clock reg3:0/numberprintedonthesegmentalways (posedge clk or posedge clr)/dealtheclockandclearevents t= /ifclearb

3、uttonpressed,cleartheclocktt +/ifclockflip, count /ifcountwasfull,backtozero t = 0;alwaysNUM/takethehigherfourbitsasnumberforclk_sw_7seg_sub A1( /callthesubdisplay实验三 二位数码管循环显示数字clk_7segff_sub(input 3:0NUM, output always (*) hB:a_to_g=7b1100000; hC:a_to_g=7b0110001; hE:a_to_g=7b0110000; hF:clk_7segf

4、f_top(input input clr, /clock reg 3:0 NUM;/numberprintedonthesegmentLEDs wire s ;always (posedge clk or posedge clr)/dealtheclockandclearevents t= /ifclearbuttonpressed,cleartheclocktt /ifclockflip,count /ifcountwasfull,backtozero t = 0;assign s =assign an1 = s ;assign an0 = s ; assignan3:2=2b11;alw

5、ays/takethehigherfourbitsasnumberforprinting 1:NUM =0:NUM clk_7segff_sub /callthesubdisplay实验二位数码管循环显示数字0099（选做clk_7seg99_sub(input 3:0NUM, output always (*) hB:a_to_g=7b1100000; hC:a_to_g=7b0110001; hE:a_to_g=7b0110000; hF:module input 7:0B_8, reg3:0creg7:0qassignD_2=c,q3:0; always (*)cB_87:0/16q=

6、(B_87:0%16)+(B_87:0/16)*6 c= c + q/16q=q%16+(q/16)*6; c= c + q/16q=q%16+(q/16)*6; c= c + q/16q=q%16+(q/16)*6; c = c + 1 ; q= q- 10 clk_7seg99_top(input input clr, input pause, reg3:0reg16:0sregp_flagwire7:0wirealways(posedgeclkorposedgeclr) t=t t+ t = 0;always ( posedge pause)p_flag = p_flag ;always(posedgeclk) s=s+1; s = 0 ;assign temp