EDA出租車計費器設計

出租車計費器出租車計費器1028頁出租車計費器的總體設計出租車計費設計該出租車計費器按下開關(guān)S1后開頭計費和計里程數(shù)，分為白天和夜晚。當撥動開關(guān)K2為0時，系統(tǒng)使用程序設置的起步價，白天起步價是3元，準行2公里，以后2/公里；夜晚起步價是923/公里。當撥K210~920050根本設計思想來作為整個系統(tǒng)的復位按鈕，每復位一次，計1公里。系統(tǒng)設計是需要檢測電機的轉(zhuǎn)動狀況，每轉(zhuǎn)1000圈，分頻模塊輸出一個下降沿信號。車費和里程數(shù)874416*16K102/2；撥動開關(guān)K21，3/3。出租車計費器的總體實現(xiàn)系統(tǒng)總體框圖，主要進程有：1計程模塊進程：記錄已行里程；計費模塊進程：計算應付車費；4*4總程序〔系統(tǒng)時鐘〕4*4計費模塊分頻模塊計程模塊總程序〔系統(tǒng)時鐘〕4*4計費模塊分頻模塊計程模塊數(shù)碼管16*162-1數(shù)碼管16*16程序流程圖Count<=0Temp<=0Count<=0Temp<=0Yrstmotor信號發(fā)生變化Rst=’0’Nmotor”eventandmotor=”1”YYCount<499Count=0Temp=nottempNCount<=count+1Glclk<=temp2-2分頻模塊〔2〕計程模塊Meter1<=0;Meter1<=0;Meter10<=0;Meter100<=0;Meter1K<=0;Yrstglclk信號發(fā)生變化Rst=’0’Nglclk”eventandglclk=”0”YMeter1,meter10,meter100,meter1000代表的四位十12-3計程模塊(3)計費模塊Money1<=qibujia;Money1<=qibujia;Money10<=0;Money100<=0;Money1000<=0;Yrstclk信號發(fā)生變化Rst=’0’Nclk”eventandclk=”0”Y依據(jù)路程計算出總價，再把總價的千位、百位、十位、個位取出顯示。2-4計費模塊出租車計費器各功能的實現(xiàn)，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，費用為〔起步價〔路程-〕*單價200公里時費〔〔路程-2〕*單價。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矩陣鍵盤：有鍵按下時為低電平，脈沖掃描時先推斷行，再推斷列。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;過提高時鐘的頻率，到達顯示的效果。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;從左到右顯示，提高時鐘頻率到達顯示效果。process(cdount)begincasecdountiswhen“0000“=>ledcol<=“0000“列選擇(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里程數(shù)的最低位為“00000，temp1，費用增加相應的單價，符合課題要求。3-1系統(tǒng)仿真圖4總結(jié)與體會析事物的規(guī)律思維力量得到了熬煉，提高了實際動手力量。了一個又一個困難。在試驗室中，我生疏了對QuartusⅡ軟件的一般工程的操VHDL業(yè)理論學問這樣才能在以后出去工作的實踐過程中有所成果。不斷指導和同學的熱忱幫助。總的來說，這次實訓我收獲很大。AVHDLlibraryieee;useieee.std_logic_1164.all;useieee.std_logic_arith.all;useieee.std_logic_unsigned.all;entitydianzhenisport(Clk :instd_logic;--時鐘輸入k1,k2 :instd_logic;--danjiaxuanzeRst :instd_logic;--復位輸入Motor :instd_logic;--電機脈沖輸入輸出

Krow : instd_logic_vector(3downto0);Kcol : bufferstd_logic_vector(3downto0);Display : out std_logic_vector(7downto0); --七段碼管顯示SEG_SEL : buffer std_logic_vector(2downto0);七段碼管掃ledcol:outstd_logic_vector(3downto0); --點陣列掌握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 --掃描累加SEG_SEL<=SEG_SEL+1;Display<=Disp_Decode;endif;endprocess;process(Disp_Temp) --顯示轉(zhuǎn)換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“列選擇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“;

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

01出租車計費器出租車計費器2128頁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出租車計費器出租車計費器2228頁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出租車計費器出租車計費器2328頁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出租車計費器出租車計費器2428頁when“1111“=>ledrow<=“1111111111111111“;whenothers=>ledrow<=“11111111