EDA出租车计费器设计

出租车计费器出租车计费器1028页出租车计费器的总体设计出租车计费设计该出租车计费器按下开关S1后开头计费和计里程数，分为白天和夜晚。当拨动开关K2为0时，系统使用程序设置的起步价，白天起步价是3元，准行2公里，以后2/公里；夜晚起步价是923/公里。当拨K210~920050根本设计思想来作为整个系统的复位按钮，每复位一次，计1公里。系统设计是需要检测电机的转动状况，每转1000圈，分频模块输出一个下降沿信号。车费和里程数874416*16K102/2；拨动开关K21，3/3。出租车计费器的总体实现系统总体框图，主要进程有：1计程模块进程：记录已行里程；计费模块进程：计算应付车费；4*4总程序〔系统时钟〕4*4计费模块分频模块计程模块总程序〔系统时钟〕4*4计费模块分频模块计程模块数码管16*162-1数码管16*16程序流程图Count<=0Temp<=0Count<=0Temp<=0Yrstmotor信号发生变化Rst=’0’Nmotor”eventandmotor=”1”YYCount<499Count=0Temp=nottempNCount<=count+1Glclk<=temp2-2分频模块〔2〕计程模块Meter1<=0;Meter1<=0;Meter10<=0;Meter100<=0;Meter1K<=0;Yrstglclk信号发生变化Rst=’0’Nglclk”eventandglclk=”0”YMeter1,meter10,meter100,meter1000代表的四位十12-3计程模块(3)计费模块Money1<=qibujia;Money1<=qibujia;Money10<=0;Money100<=0;Money1000<=0;Yrstclk信号发生变化Rst=’0’Nclk”eventandclk=”0”Y依据路程计算出总价，再把总价的千位、百位、十位、个位取出显示。2-4计费模块出租车计费器各功能的实现，meter11.ifrst=”0”thencount<=0;elsif(motor”eventandmotor=”1”)thenifcount>499thencount<=0;temp<=nottemp;elsecount<=count+1;endif;endif;glclk<=temp;90。process(glclk)beginif(Rst=”0”)thenMeter1<=0;Meter10<=0;Meter1K<=0;elsif(glclk”eventandglclk=”0”)thenif(Meter1=9)thenMeter1<=0;if(Meter10=9)thenMeter10<=0;if(Meter100=9)thenMeter100<=0;if(Meter1K=9)thenelseendif;elseendif;elseendif;elseendif;endif;endprocess;22公里200公里，费用为〔起步价〔路程-〕*单价200公里时费〔〔路程-2〕*单价。process(clk,rst)beginif((Rst=”0”)or(lucheng<3))thenMoney1<=qibujia;Money10<=0;Money100<=0;Money1000<=0;elsif(clk”eventandclk=”0”)theniflucheng>200thenjiage<=(lucheng-2)*danjia+qibujia+50;money1000<=(jiage-(jiagemod1000))/1000;money100<=((jiagemod1000)-((jiagemod1000)mod100))/100;money10<=((jiagemod100)-(jiagemod10))/10;money1<=jiagemod10;elsejiage<=(lucheng-2)*danjia+qibujia;money1000<=(jiage-(jiagemod1000))/1000;money100<=((jiagemod1000)-((jiagemod1000)mod100))/100;money10<=((jiagemod100)-(jiagemod10))/10;money1<=jiagemod10;endif;endif;endprocess;〔4〕4*4矩阵键盘：有键按下时为低电平，脉冲扫描时先推断行，再推断列。process(clk)beginif(clk”eventandclk=”1”)thenif(Krow=“1111“)thenkflag1<=”0”;kcount<=kcount+1;if(kcount=0)thenKcol<=“1110“;elsif(kcount=1)thenelsif(kcount=2)thenKcol<=“1011“;elseKcol<=“0111“;else

endif;kflag1<=”1”;keyrow<=Krow;keycol<=Kcol;endif;endif;endprocess;process(clk)beginifk2=”1”thenif(clk”eventandclk=”1”)thenif(kflag1=”1”)thenif(keyrow=“0111“)thencasekeycoliswhen“0111“=>buff<=1;when“1011“=>buff<=4;when“1101“=>buff<=7;whenothers=>buff<=buff;endcase;elsif(keyrow=“1011“)thencasekeycoliswhen“0111“=>buff<=2;when“1011“=>buff<=5;when“1101“=>buff<=8;when“1110“=>buff<=0;whenothers=>buff<=buff;endcase;elsif(keyrow=“1101“)thencasekeycoliswhen“1101“=>buff<=9;when“1011“=>buff<=6;when“0111“=>buff<=3;whenothers=>buff<=buff;endcase;endif;endif;qibujia<=buff;endif;elseqibujia_d<=3; if(k1=”0”)thenqibujia<=qibujia_d;elseqibujia<=qibujia_n;endif;endif;endprocess;过提高时钟的频率，到达显示的效果。process(SEG_SEL)begincase(SEG_SEL+1)iswhen“000“=> Disp_Temp<=Meter1K;when“001“=> Disp_Temp<=Meter100;when“010“=> Disp_Temp<=Meter10;when“011“=> Disp_Temp<=Meter1;when“100“=> Disp_Temp<=money1000;when“101“=> Disp_Temp<=Money100;when“110“=> Disp_Temp<=Money10;when“111“=> endcase;endprocess;process(Disp_Temp)begincaseDisp_Tempiswhen0=>Disp_Decode<=“00111111“; --0when1=>Disp_Decode<=“00000110“; --1when2=>Disp_Decode<=“01011011“; --2when3=>Disp_Decode<=“01001111“; --3when4=>Disp_Decode<=“01100110“; --4when5=>Disp_Decode<=“01101101“; --5when6=>Disp_Decode<=“01111101“; --6when7=>Disp_Decode<=“00000111“; --7when8=>Disp_Decode<=“01111111“; --8when9=>Disp_Decode<=“01101111“; whenothers=>Disp_Decode<=“00000000“;endcase;endprocess;从左到右显示，提高时钟频率到达显示效果。process(cdount)begincasecdountiswhen“0000“=>ledcol<=“0000“列选择(lg7088Ah)when“0001“=>ledcol<=“0001“;when“0010“=>ledcol<=“0010“;when“0011“=>ledcol<=“0011“;when“0100“=>ledcol<=“0100“;when“0101“=>ledcol<=“0101“;when“0110“=>ledcol<=“0110“;when“0111“=>ledcol<=“0111“;when“1000“=>ledcol<=“1000“;when“1001“=>ledcol<=“1001“;when“1010“=>ledcol<=“1010“;when“1011“=>ledcol<=“1011“;when“1100“=>ledcol<=“1100“;when“1101“=>ledcol<=“1101“;when“1110“=>ledcol<=“1110“;when“1111“=>ledcol<=“1111“;whenothers=>ledcol<=“0000“;endcase;endprocess;30011里程数的最低位为“00000，temp1，费用增加相应的单价，符合课题要求。3-1系统仿真图4总结与体会析事物的规律思维力量得到了熬炼，提高了实际动手力量。了一个又一个困难。在试验室中，我生疏了对QuartusⅡ软件的一般工程的操VHDL业理论学问这样才能在以后出去工作的实践过程中有所成果。不断指导和同学的热忱帮助。总的来说，这次实训我收获很大。AVHDLlibraryieee;useieee.std_logic_1164.all;useieee.std_logic_arith.all;useieee.std_logic_unsigned.all;entitydianzhenisport(Clk :instd_logic;--时钟输入k1,k2 :instd_logic;--danjiaxuanzeRst :instd_logic;--复位输入Motor :instd_logic;--电机脉冲输入输出

Krow : instd_logic_vector(3downto0);Kcol : bufferstd_logic_vector(3downto0);Display : out std_logic_vector(7downto0); --七段码管显示SEG_SEL : buffer std_logic_vector(2downto0);七段码管扫ledcol:outstd_logic_vector(3downto0); --点阵列掌握ledrow:outstd_logic_vector(15downto0)); 示enddianzhen;architecturebehaveofdianzhenissignalDisp_Temp:integerrange0to15;signalDisp_Decode:std_logic_vector(7downto0);signalMeter1,Meter10,Meter100,Meter1K :integerrange0to9;signalMoney1,Money10,Money100,Money1000 :integerrange0to9;signaldanjia,day,night,qibujia,qibujia_d,qibujia_n: integerrange0to9;signaltemp,glclk:std_logic;signalcount:integerrange0to500;signallucheng,jiage:integerrange0to100000;signalcdount:std_logic_vector(3downto0);signalbuff:integerrange0to15;signalkeyrow,keycol:std_logic_vector(3downto0);signalkcount:std_logic_vector(2downto0);signalkflag1:std_logic;beginprocess(motor,rst)beginday<=2; if(k1=”0”)thendanjia<=day;elsedanjia<=night;endif;ifrst=”0”thencount<=0;elsif(motor”eventandmotor=”1”)thenifcount>499thencount<=0;temp<=nottemp;elsecount<=count+1;endif;endif;glclk<=temp;endprocess;process(clk)beginif(clk”eventandclk=”1”)thenif(Krow=“1111“)thenkflag1<=”0”;kcount<=kcount+1;if(kcount=0)thenKcol<=“1110“;elsif(kcount=1)thenelsif(kcount=2)thenelseKcol<=“0111“;else

endif;kflag1<=”1”;keyrow<=Krow;keycol<=Kcol;endif;endif;endprocess;process(clk)beginifk2=”1”thenif(clk”eventandclk=”1”)thenif(kflag1=”1”)thenif(keyrow=“0111“)thencasekeycoliswhen“0111“=>buff<=1;when“1011“=>buff<=4;when“1101“=>buff<=7;whenothers=>buff<=buff;endcase;elsif(keyrow=“1011“)thencasekeycoliswhen“0111“=>buff<=2;when“1011“=>buff<=5;when“1101“=>buff<=8;when“1110“=>buff<=0;whenothers=>buff<=buff;endcase;elsif(keyrow=“1101“)thencasekeycoliswhen“1101“=>buff<=9;when“1011“=>buff<=6;when“0111“=>buff<=3;whenothers=>buff<=buff;endcase;endif;endif;qibujia<=buff;endif;elseqibujia_d<=3; if(k1=”0”)thenqibujia<=qibujia_d;elseqibujia<=qibujia_n;endif;endif;endprocess;process(glclk)beginif(Rst=”0”)thenMeter1<=0;Meter10<=0;Meter1K<=0;elsif(glclk”eventandglclk=”0”)thenif(Meter1=9)thenMeter1<=0;if(Meter10=9)thenMeter10<=0;if(Meter100=9)thenMeter100<=0;if(Meter1K=9)thenelseendif;elseendif;elseendif;elseendif;endif;endprocess;process(clk,rst)beginif((Rst=”0”)or(lucheng<3))thenMoney1<=qibujia;Money10<=0;Money100<=0;Money1000<=0;elsif(clk”eventandclk=”0”)theniflucheng>200thenjiage<=(lucheng-2)*danjia+qibujia+50;money1000<=(jiage-(jiagemod1000))/1000;money100<=((jiagemod1000)-((jiagemod1000)mod100))/100;money10<=((jiagemod100)-((jiagemod100)mod10))/10;money1<=jiagemod10;elsejiage<=(lucheng-2)*danjia+qibujia;money1000<=(jiage-(jiagemod1000))/1000;money100<=((jiagemod1000)-((jiagemod1000)mod100))/100;money10<=((jiagemod100)-(jiagemod10))/10;money1<=jiagemod10;endif;endif;endprocess;process(clk)beginif clk”event and clk=”1” thenif cdount<15 cdount<=cdount+1;elsecdount<=“0000“;end if;end if;end process(SEG_SEL)begincase(SEG_SEL+1)iswhen“000“=> Disp_Temp<=Meter1K;when“001“=> Disp_Temp<=Meter100;when“010“=> Disp_Temp<=Meter10;when“011“=> Disp_Temp<=Meter1;when“100“=> Disp_Temp<=money1000;when“101“=> Disp_Temp<=Money100;when“110“=> Disp_Temp<=Money10;when“111“=> endcase;endprocess;process(Clk)beginif(Clk”eventandClk=”1”then --扫描累加SEG_SEL<=SEG_SEL+1;Display<=Disp_Decode;endif;endprocess;process(Disp_Temp) --显示转换begincaseDisp_Tempiswhen0=>Disp_Decode<=“00111111“; --0when1=>Disp_Decode<=“00000110“; --1when2=>Disp_Decode<=“01011011“; --2when3=>Disp_Decode<=“01001111“; --3when4=>Disp_Decode<=“01100110“; when5=>Disp_Decode<=“01101101“; when6=>Disp_Decode<=“01111101“; --6when7=>Disp_Decode<=“00000111“; when8=>Disp_Decode<=“01111111“; --8when9=>Disp_Decode<=“01101111“; whenothers=>Disp_Decode<=“00000000“;endcase;endprocess;process(cdount)begincasecdountiswhen“0000“=>ledcol<=“0000“列选择when“0001“=>ledcol<=“0001“;when“0010“=>ledcol<=“0010“;when“0011“=>ledcol<=“0011“;when“0100“=>ledcol<=“0100“;when“0101“=>ledcol<=“0101“;when“0110“=>ledcol<=“0110“;when“0111“=>ledcol<=“0111“;when“1000“=>ledcol<=“1000“;when“1001“=>ledcol<=“1001“;when“1010“=>ledcol<=“1010“;when“1011“=>ledcol<=“1011“;when“1100“=>ledcol<=“1100“;when“1101“=>ledcol<=“1101“;when“1110“=>ledcol<=“1110“;whenothers=>ledcol<=“0000“;

--全灭endcase;endprocess;process(danjia)beginifdanjia=0thencasecdountiswhen“0000“=>ledrow<=“1111111111111111“-whenothers=>ledrow<=“1111111111111111“;endcase;elsifdanjia=1thencasecdountiswhen“0000“=>ledrow<=“1111111111111111“-

01出租车计费器出租车计费器2128页whenothers=>ledrow<=“1111111111111111“;endcase;elsif danjia=2 thencasecdountiswhen“0000“=>ledrow<=“1111111111111111“-when“0001“=>ledrow<=“1111111111111111“;when“0010“=>ledrow<=“1111111111111111“;when“0011“=>ledrow<=“1111111111111111“;when“0100“=>ledrow<=“1100000001110011“;

2出租车计费器出租车计费器2228页when“1111“=>ledrow<=“1111111111111111“;whenothers=>ledrow<=“1111111111111111“;endcase;elsif danjia=3 thencasecdountiswhen“0000“=>ledrow<=“1111111111111111“-when“0001“=>ledrow<=“1111111111111111“;when“0010“=>ledrow<=“1111111111111111“;when“0011“=>ledrow<=“1111111111111111“;when“0100“=>ledrow<=“1100111001110011“;whenothers=>ledrow<=“1111111111111111“;endcase;elsif danjia=4 casecdountiswhen“0000“=>ledrow<=“1111111111111111“-when“0001“=>ledrow<=“1111111111111111“;when“0010“=>ledrow<=“1111111111111111“;

34出租车计费器出租车计费器2328页whenothers=>ledrow<=“1111111111111111“;endcase;elsif danjia=5 thencasecdountiswhen“0000“=>ledrow<=“1111111111111111“-when“0001“=>ledrow<=“1111111111111111“;when“0010“=>ledrow<=“1111111111111111“;when“0011“=>ledrow<=“1111111111111111“;when“0100“=>ledrow<=“1100111000000011“;

5出租车计费器出租车计费器2428页when“1111“=>ledrow<=“1111111111111111“;whenothers=>ledrow<=“11111111