数字钟实验报告

本科实验报告 21.正常的时、分、秒计时功能，分别由六个数码管显示时分秒的计时。(K1=1正常工作，K1=0时可以快速校分)K2是系统的校时开关(K2=1正常工作，K2=0时可以快速校时)2.整点报时功能(使用蜂鸣器报时，当时钟计到59`53``时开始报时，在59`53``,59`55``,59`57``时刻报时频率为512Hz，1.开发板各基本模块功能介绍z·按键(R8-OK,E1-UP,T8-DOWN,M2-LEFT,T9-RIGHT)检测到对应设置的电平后，产生响应每个LED位选分别由一个I/O口线(D0-D7)控制2.数字钟总体模块设计时钟及分频器模块：将50M时钟精确分成时钟模块所需的秒，按键消抖模块所需的150hz，所以在连续按压时会连续变化。块负责向时产生进位。同时，分和时在检测到来自按键的低电平后会在原有基础上加1.34并在用户按下按键后进行切换译码。之后在扫频选通模块的作用下向数码管输送段显信号。3.数字钟各模块具体原理及设计en采用上述类似方法可以很方便地把时钟分成用户所需要钟频率并提供给所需要的模块。秒、分、时模块:如图所示秒接受来自分频器秒的分频，得到进位，当记到59时。分的使能端接受来自秒的高位和低位位。时钟部分完全采用同步时钟设置，时、分严格同步进位。5译码器bell_coding,译码器bell_second_L,bell_second_H接的是系统时间。采用时钟调制，扫描进行按键识别。原理如下：/start的delay量，以时钟为检测周期，每个时钟上升沿到来时delay加1，当delaykey_out_reg取高电平。这样delay量就成为时钟的一个分频，并同时检测用户按下的操作。Start越大，抗抖动能力越强，但是速度越慢。反之灵敏度提升，抗抖能力下降。6使用分频器，将对应的时钟分成需要的频率。控制闹钟的声音音调和警报的间隔。1.开发板关闭要先关闭开发板电源再拔掉数据线，下载数据时不可拔掉数据线或电源线。2.QurtusII的开发版型号要选择正确。3.使用的用电路图连接的方法构建顶层模块，比较直观方便。是时序逻辑电路部分的理解。set_location_assignmentPIN_R9-toCLK(50M时钟管脚)set_location_assignmentPIN_M1-toRSTn(复位)set_location_assignmentPIN_M8-tocod[0]set_location_assignmentPIN_N11-tocod[7]set_location_assignmentPIN_P11-tocod[6]set_location_assignmentPIN_M10-tocod[5]set_location_assignmentPIN_M9-tocod[4]set_location_assignmentPIN_N9-tocod[3]set_location_assignmentPIN_P9-tocod[2]set_location_assignmentPIN_L7-tocod[1](数码管段显控制)set_location_assignmentPIN_N6-towela[5]set_location_assignmentPIN_P6-towela[4]set_location_assignmentPIN_M6-towela[3]set_location_assignmentPIN_M7-towela[2]set_location_assignmentPIN_P8-towela[1]set_location_assignmentPIN_N8-towela[0](数码管位显控制)set_location_assignmentPIN_M2-tohour_key(校时按键)set_location_assignmentPIN_T9-tominiute_key(校分按键)set_location_assignmentPIN_D6-tobuzzer(蜂鸣器)set_location_assignmentPIN_R8-toselect_key(切换显示时钟时间和闹钟时间)set_location_assignmentPIN_E1-tohour_bell_key(调闹钟时)set_location_assignmentPIN_T8-tominiute_bell_key(调闹钟分)3.部分源程序modulekey(inputCLK,inputkey_in,outputkey_out);gkeyoutregparameterstart'd8000000;reg:0]delay;always@(posedgeCLK)ifdelay==start)delay0;outregkeyindelay<=delay+1;key_out_reg<=1'b1;assignkey_out=key_out_reg;endmodule秒分频器模块modulesecond_en(inputCLK,outputsecond_enregsecond_en_reg;T1S=27'd49999999;//50Mhz的晶振reg[26:0]Count1;always@(posedgeCLKornegedgeTnCount1<=27'd0;second_en_reg<=1'b0;elseif(Count1==T1S)Count1<=27'd0;second_en_reg<=1'b1;//使Count1<=Count1+1'b1;second_en_reg<=1'b0;assignsecond_en=second_en_reg;endmodule块modulesecond(inputCLK,inputCLK,//inputsecond_en,//output[3:0]inputsecond_en,//output[3:0]second_H//reg[3:0]second_L_reg;//reg[3:0]second_H_reg;//always@(posedgeCLKornegedgeRSTn)second_H_reg<=4'd0;second_L_reg<=4'd0;elseif(second_en==1)//if(second_L_reg==4'd9)//second_L_reg<=清零if(second_H_reg==4'd5)//second_H_reg<=4'd0;second_H_reg<=second_H_reg+1;//否则十位加上1second_L_reg<=second_L_reg+1;//个位上一次状态不是9，这时个位无须清零，十位自然保持原样assignsecond_L=second_L_reg;assignsecond_H=second_H_reg;endmodulemoduleminiute(inputCLK,//50MHz时钟inputminiute_en,//inputminiute_en2,output[3:0]miniute_L,//分的个位output[3:0]miniute_H//分的十位reg[3:0]miniute_L_reg;//reg[3:0]miniute_H_reg;//always@(posedgeCLKornegedgeRSTn)miniute_H_reg<=4'd0;miniute_L_reg<=4'd0;elseif(miniute_en==1||miniute_en2==0)//if(miniute_L_reg==4'd9)//if(miniute_H_reg==4'd5)//miniute_H_reg<=4'd0;//如果十位上次已经达到miniute_L_reg<=4'd0;miniute_H_reg<=miniute_H_reg+1;niuteLregdminiute_L_reg<=miniute_L_reg+1;//个位上一次状态不是9，这时个位无须清零，十位自然保持原样assignminiute_L=miniute_L_reg;assignminiute_H=miniute_H_reg;endmodulemodulehour(inputCLK,//50MHz时钟//inputhour_en,//inputhour_en2,output[3:0]hour_L,output[3:0]hour_H//时的个位//时的十位reg[3:0]hour_L_reg;//reg[3:0]hour_H_reg;//always@(posedgeCLKornegedgeRSTn)hour_H_reg<=4'd0;hour_L_reg<=4'd0;if(hour_H_reg==4'd2)if(hour_L_reg==4'd3)hour_L_reg<=4'd0;hour_H_reg<=4'd0;hour_L_reg<=hour_L_reg+1;if(hour_L_reg==4'd9)hour_L_reg<=4'd0;hour_H_reg<=hour_H_reg+1;hour_L_reg<=hour_L_reg+1;assignhour_L=hour_L_reg;assignhour_H=hour_H_reg;endmodulemoduleminiute_en(inputCLK,input[3:0]sl,input[3:0]sh,inputsecond_en,outputminiute_enregminiute_en_reg;always@(posedgeCLK)//上边沿触发clkif(sh==4'b0101)if(sl==4'b1001)if(second_en==1)miniute_en_reg<=1'b1;miniute_en_reg<=1'b0;miniute_en_reg<=1'b0;ddminiute_en_reg<=1'b0;assignminiute_en=miniute_en_reg;endmodulemodulehour_en([3:0]sl,input[3:0]sh,input[3:0]ml,input[3:0]mh,inputwireminiute_en,inputCLK,outputhour_enreghour_en_reg;always@(posedgeCLK)if(mh==4'b0101)if(ml==4'b1001)if(sh==4'b0101)if(sl==4'b1001)if(miniute_en==1)hour_en_reg<=1'b1;ginhour_en_reg<=1'b0;hour_en_reg<=1'b0;hour_en_reg<=1'b0;hour_en_reg<=1'b0;hour_en_reg<=1'b0;assignhour_en=hour_en_reg;endmodule译码选择模块modulebell_coding(inputCLK,input[3:0]bell_second_L,input[3:0]bell_second_H,output[7:0]bell_second_L_cod,output[7:0]bell_second_H_cod,input[3:0]bell_miniute_L,input[3:0]bell_miniute_H,output[7:0]bell_miniute_L_cod,output[7:0]bell_miniute_H_cod,input[3:0]bell_hour_L,input[3:0]bell_hour_H,output[7:0]bell_hour_L_cod,output[7:0]bell_hour_H_codreg[7:0]second_L_cod_reg;reg[7:0]second_H_cod_reg;reg[7:0]miniute_L_cod_reg;reg[7:0]miniute_H_cod_reg;reg[7:0]hour_L_cod_reg;reg[7:0]hour_H_cod_reg;always@(posedgeCLK)case(bell_second_L)4'b0000:second_L_cod_reg<=~8'b0011_1111;4'b0001:second_L_cod_reg<=~8'b0000_0110;4'b0010~8'b0101_1011;4'b0011~8'b0100_1111;4'b0100~8'b0110_0110;4'b0101~8'b0110_1101;4'b0110~8'b0111_1101;4'b0111:~8'b0000_0111;4'b1000~8'b0111_1111;4'b1001~8'b0110_1111;endcasecase(bell_second_H)4'b0000~8'b0011_1111;4'b0001~8'b0000_0110;4'b0010~8'b0101_1011;4'b0011~8'b0100_1111;4'b0100~8'b0110_0110;4'b0101~8'b0110_1101;4'b0110~8'b0111_1101;4'b0111~8'b0000_0111;4'b1000~8'b0111_1111;4'b1001~8'b0110_1111;endcasecase(bell_miniute_L)4'b0000~8'b0011_1111;4'b0001:second_L_cod_reg<=:second_L_cod_reg<=:second_L_cod_reg<=:second_L_cod_reg<=:second_L_cod_reg<=second_L_cod_reg<=:second_L_cod_reg<=:second_L_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=~8'b0000_0110;4'b0010:miniute_L_cod_reg<=~8'b0101_1011;4'b0011:miniute_L_cod_reg<=~8'b0100_1111;4'b0100:miniute_L_cod_reg<=~8'b0110_0110;4'b0101:miniute_L_cod_reg<=~8'b0110_1101;4'b0110:miniute_L_cod_reg<=~8'b0111_1101;4'b0111:miniute_L_cod_reg<=~8'b0000_0111;4'b1000:miniute_L_cod_reg<=~8'b0111_1111;4'b1001:miniute_L_cod_reg<=~8'b0110_1111;endcasecase(bell_miniute_H)b0:miniute_H_cod_reg<=~8'b0011_1111;b1:miniute_H_cod_reg<=~8'b0000_0110;b0:miniute_H_cod_reg<=~8'b0101_1011;b1:miniute_H_cod_reg<=~8'b0100_1111;b0:miniute_H_cod_reg<=~8'b0110_0110;b1:miniute_H_cod_reg<=~8'b0110_1101;b0:miniute_H_cod_reg<=~8'b0111_1101;b1:miniute_H_cod_reg<=~8'b0000_0111;b0:miniute_H_cod_reg<=~8'b0111_1111;b1:miniute_H_cod_reg<=~8'b0110_1111;endcasecase(bell_hour_L)4'b0000:hour_L_cod_reg<=~8'b0011_1111;4'b0001:hour_L_cod_reg<=~8'b0000_0110;4'b0010~8'b0101_1011;4'b0011~8'b0100_1111;4'b0100~8'b0110_0110;4'b0101~8'b0110_1101;4'b0110~8'b0111_1101;4'b0111~8'b0000_0111;4'b1000~8'b0111_1111;4'b1001~8'b0110_1111;endcase::::::::hour_L_cod_reg<=hour_L_cod_reg<=hour_L_cod_reg<=hour_L_cod_reg<=hour_L_cod_reg<=hour_L_cod_reg<=hour_L_cod_reg<=hour_L_cod_reg<=case(bell_hour_H)4'b0000~8'b0011_1111;4'b0001~8'b0000_0110;4'b0010~8'b0101_1011;4'b0011~8'b0100_1111;4'b0100~8'b0110_0110;4'b0101~8'b0110_1101;4'b0110~8'b0111_1101;4'b0111~8'b0000_0111;4'b1000~8'b0111_1111;4'b1001~8'b0110_1111;endcase::::::::::hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=assignbell_second_L_cod=second_L_cod_reg;assignbell_second_H_cod=second_H_cod_reg;assignbell_miniute_L_cod=miniute_L_cod_reg;assignbell_miniute_H_cod=miniute_H_cod_reg;assignbell_hour_L_cod=hour_L_cod_reg;assignbell_hour_H_cod=hour_H_cod_reg;endmodulemodulecoding_second(input[3:0]second_L,input[3:0]second_H,inputCLK,inputRSTn,output[7:0]second_L_cod,output[7:0]second_H_cod,input[3:0]miniute_L,input[3:0]miniute_H,output[7:0]miniute_L_cod,output[7:0]miniute_H_cod,input[3:0]hour_L,input[3:0]hour_H,output[7:0]hour_L_cod,output[7:0]hour_H_codreg[7:0]second_L_cod_reg;reg[7:0]second_H_cod_reg;reg[7:0]miniute_L_cod_reg;reg[7:0]miniute_H_cod_reg;reg[7:0]hour_L_cod_reg;reg[7:0]hour_H_cod_reg;always@(posedgeCLK)case(second_L)4'b0000:second_L_cod_reg<=~8'b0011_1111;4'b0001:second_L_cod_reg<=~8'b0000_0110;4'b0010:second_L_cod_reg<=~8'b0101_1011;4'b0011:second_L_cod_reg<=~8'b0100_1111;4'b0100:second_L_cod_reg<=~8'b0110_0110;4'b0101:second_L_cod_reg<=~8'b0110_1101;4'b0110:second_L_cod_reg<=~8'b0111_1101;4'b0111:second_L_cod_reg<=~8'b0000_0111;4'b1000:second_L_cod_reg<=~8'b0111_1111;4'b1001:second_L_cod_reg<=~8'b0110_1111;endcasecase(second_H)4'b0000~8'b0011_1111;4'b0001~8'b0000_0110;4'b0010~8'b0101_1011;4'b0011~8'b0100_1111;4'b0100~8'b0110_0110;4'b0101~8'b0110_1101;4'b0110~8'b0111_1101;4'b0111~8'b0000_0111;4'b1000~8'b0111_1111;4'b1001~8'b0110_1111;endcasecase(miniute_L)4'b0000~8'b1011_1111;4'b0001~8'b1000_0110;4'b0010~8'b1101_1011;4'b0011~8'b1100_1111;4'b0100~8'b1110_0110;4'b0101~8'b1110_1101;4'b0110~8'b1111_1101;4'b0111~8'b1000_0111;4'b1000~8'b1111_1111;4'b1001~8'b1110_1111;endcasecase(miniute_H):second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:second_H_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=:miniute_L_cod_reg<=4'b0000~8'b0011_1111;4'b0001~8'b0000_0110;4'b0010~8'b0101_1011;4'b0011~8'b0100_1111;4'b0100~8'b0110_0110;4'b0101~8'b0110_1101;4'b0110~8'b0111_1101;4'b0111~8'b0000_0111;4'b1000~8'b0111_1111;4'b1001~8'b0110_1111;endcasecase(hour_L)4'b0000~8'b1011_1111;4'b0001~8'b1000_0110;4'b0010~8'b1101_1011;4'b0011~8'b1100_1111;4'b0100~8'b1110_0110;4'b0101~8'b1110_1101;4'b0110~8'b1111_1101;4'b0111~8'b1000_0111;4'b1000~8'b1111_1111;4'b1001~8'b1110_1111;endcasecase(hour_H)HcodregHcodregHcodregHcodregHcodreguteHcodregHcodregdregdregdreghourLcod_reg<=hourLcod_reg<=hourLcod_reg<=hourLcod_reg<=hourLcod_reg<=hourLcod_reg<=hourLcod_reg<=hourLcod_reg<=hourLcod_reg<=hourLcod_reg<=4'b0000~8'b0011_1111;4'b0001~8'b0000_0110;4'b0010~8'b0101_1011;4'b0011~8'b0100_1111;4'b0100~8'b0110_0110;4'b0101~8'b0110_1101;4'b0110~8'b0111_1101;4'b0111~8'b0000_0111;4'b1000~8'b0111_1111;4'b1001~8'b0110_1111;endcase::::::::::hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=hour_H_cod_reg<=assignsecond_L_cod=second_L_cod_reg;assignsecond_H_cod=second_H_cod_reg;assignminiute_L_cod=miniute_L_cod_reg;assignminiute_H_cod=miniute_H_cod_reg;assignhour_L_cod=hour_L_cod_reg;assignhour_H_cod=hour_H_cod_reg;endmodulemoduleclock_bell_select(yinputCLK,input[7:0]second_L_cod1,input[7:0]second_H_cod1,input[7:0]miniute_L_cod1,input[7:0]miniute_H_cod1,input[7:0]hour_L_cod1,input[7:0]hour_H_cod1,[7:0]second_H_cod2,[7:0]second_L_cod2,input[7:0]miniute_L_cod2,input[7:0]miniute_H_cod2,input[7:0]hour_L_cod2,input[7:0]hour_H_cod2,output[7:0]second_L,output[7:0]second_H,output[7:0]miniute_L,output[7:0]miniute_H,output[7:0]hour_L,output[7:0]hour_Hreg[7:0]second_L_reg;reg[7:0]second_H_reg;reg[7:0]miniute_L_reg;reg[7:0]miniute_H_reg;reg[7:0]hour_L_reg;reg[7:0]hour_H_reg;regsbalways@(posedgeCLK)if(select_key==0)s<=~s;always@(posedgeCLK)if(s==1'b1)second_L_regsecond_H_regminiute_L_regminiute_H_reghour_L_reghour_H_regsecond_L_regsecond_H_regminiute_L_regminiute_H_reg<=second_L_cod1;<=second_H_cod1;<=miniute_L_cod1;<=miniute_H_cod1;<=hour_L_cod1;<=hour_H_cod1;<=second_L_cod2;<=second_H_cod2;<=miniute_L_cod2;<=miniute_H_cod2;<=hour_L<=hour_L_cod2;<=hour_H_cod2;hour_H_regassignsecond_L=second_L_reg;assignsecond_H=second_H_reg;assignminiute_L=miniute_L_reg;assignminiute_H=miniute_H_reg;assignhour_L=hour_L_reg;assignhour_H=hour_H_reg;endmodule扫频选通模块modulesweep(inputCLK,