课程设计（论文）-基于单片机计数器及出租车计费器.doc

基于mcu的计数和计程车计费器题目：基于mcu的计数和计程车计费器任务：11 外部脉冲自动计数，自动显示。111设计一个255计数器：0255计数，计满后自动清0，重新计数（在数码管中显示）。112设计一个50000计数器：050000计数，计满后自动清0，重新计数（在数码管中显示）。12 设计一个出租车计费系统： 起步价为5元（2km以内），2km后，0.8元/0.5km;要求每500m刷新计费一次，在8位数码管中，前3位显示数码管显示里程数,后3位数码管显示价钱（角，元，十元，百元） 硬件资源：89s51芯片3-8译码器74hc138共阴极数码管脉冲信号发生器10k电阻若干硬件资源介绍： 利用89s51芯片为设计的主体，通过p2口的前三位（p2.0，p2.1,p2.2）通过3-8译码器进行译码，从而控制位选，在利用p0口进行段选，从而在数码管上显示所需要的数字。二、设计过程1.设计255计数器利用t1定时器的第二工作方式2，c/t为1，利用其计数功能，当计数到255后，下一位自动变成0（自动重装初值的功能）软件设计c语言：#includereg52.hunsigned char code num_table10=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char code bit_table6=0x00,0x01,0x02,0x03,0x04,0x05;unsigned char num;void display();void delay(unsigned int aa);void init_timer()/进行定时器的初始化tmod=0x60;th1=0;tl1=0x00;tr1=1;/tf1=0;void main() p2 = 0xff;p0 = 0x00; init_timer();while(1)num=tl1;display();delay(1);/*-显示函数-*/void display()unsigned char x,y,z; x=num%10;y=(num%100)/10;z=num/100;p2=0x02;p0=num_tablez;delay(1);p2=0x01;p0=num_tabley;delay(1);p2=0x00;p0=num_tablex;delay(1);void delay(unsigned int aa)unsigned int i,j;for(i=0;iaa;i+)for(j=0;j110;j+);汇编：org 0000hljmp mainorg 0030hmain: mov tmod, #60h ;初始化 setb tr1 mov a,tl1 lcall bcd lcall display ljmp mainbcd:mov b,#64h div ab mov 72h,a xch a,b mov b,#0ah div ab mov 71h,a mov 70h,b retdisplay:mov r1,#70h ;显示模块 mov r5,#00h loop1:mov a,r5mov p2,a mov dptr,#tab mov a,r1 movc a,a+dptr mov p0,a lcall delay inc r1 inc r5 cjne r5,#03h,loop1 retdelay:mov r6,#4 d1: mov r7,#248 djnz r7,$ djnz r6,d1 rettab:db 03fh,006h,05bh,04fh,66h,6dh,7dh,007h,7fh,6fhendprotues仿真结果2. 050000计数 利用t1定时器的工作方式1进行计数，当tl1=0时表示没有有效脉冲的输入，当tl1=1时，通过间接的函数对计数进加1，同时利用动态显示的功能在数码管上显示出来。软件设计：c语言#includeunsigned int code num_table10=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char code bit_table6=0x00,0x01,0x02,0x03,0x04,0x05;unsigned int num=100;unsigned int i,j,k,x,y,z;void bcd();void display();void delay(unsigned int aa)unsigned char i,j;for(i=0;iaa;i+)for(j=0;j110;j+);/*-系统初始化-*/void init()tmod=0x50;th1=0x00;tl1=0x00;tr1=1;/x=0;y=0,z=0;/display();while(1)if(tl1!=0x00)bcd();display();void bcd()tl1=0;num+;void display()if(num=50000)num=0; i=num/100000;j=num/10000%10;k=num/1000%10;x=num/100%10;y=num/10%10;z=num%10;p2=0x05;p0=num_tablei;delay(1);p2=0x04;p0=num_tablej;delay(1);p2=0x03;p0=num_tablek;delay(1);p2=0x02;p0=num_tablex;delay(1);p2=0x01;p0=num_tabley;delay(1);p2=0x00;p0=num_tablez;delay(1);void main()init();汇编：org 0000hljmp mainorg 0030h mov 70h,#00h mov 71h,#00h mov 72h,#00h mov 73h,#00h mov 74h,#00h mov 75h,#00hmain:mov tmod,#50h mov tl1,#00h setb tr1 lcall display mov a,tl1 jz main lcall bcd ljmp maindisplay:mov r1,#70h mov r5,#00h loop1:mov a,r5mov p2,amov a,r1mov dptr,#tabmovc a,a+dptrmov p0,alcall delayinc r5inc r1cjne r5,#06h,loop1retbcd:mov tl1,#00h mov r1,#70h mov r0,#75hloop2:mov a,r1 inc acjne a,#0ah,loop4mov r1,#00h inc r1 cjne r1,#76h,loop2 ljmp loop3 loop4:mov r1,a loop3:retdelay:mov r6,#4 d1: mov r7,#248 djnz r7,$ djnz r6,d1 rettab:db 3fh,06h,5bh,4fh,66h,6dh,7dh,07h,7fh,6fhendprotues仿真结果：3.出租车计费器利用t1定时器的工作方式1，当tl1=0时表示没有有效脉冲的输入，当tl1=1时通过间接的函数对计数进加1，tl1清零；起步价为5元（2km以内），2km后，0.8元/0.5km;要求每500m刷新计费一次，在8位数码管中，前3位显示数码管显示里程数,后3位数码管显示价钱（角，元，十元，百元）软件设计c语言：#includeunsigned char code table1=0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef;unsigned char code table2=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned int w,x,y,z,i,j,k,km,money;void delay(unsigned int aa);void init();void bcd();void display1();void display2();/*-主函数-*/void main()init();void delay(unsigned int aa)unsigned char m,n;for(m=0;maa;m+)for(n=0;n110;n+);/*-初始化函数-*/void init()tmod=0x50;th1=0x00;tl1=0x00;tr1=1;km=0;money=50;/display1();/display2();while(1)while(tl1=0x00)/动态扫描display1();display2();km+;bcd(); /*-出租车的计费系统进行设置-*/ void bcd()tl1=0x00;if(km9)money=50;km=0;else;display1();delay(1);display2();void display1()/显示里程w=km/1000;x=km/100%10;y=km/10%10;z=km%10;p2=0x07;p0=table2w;delay(1);p2=0x06;p0=table2x;delay(1);p2=0x05;p0=table1y;/这一位后有小数点delay(1);p2=0x04;p0=table2z;delay(1);void display2()/显示费用i=money/100;j=money/10%10;k=money%10;p2=0x02;p0=table2i;delay(1);p2=0x01;p0=table1j;/这一位后有小数点delay(1);p2=0x00;p0=table2k;delay(1);汇编：org 0000hsjmp mainorg 0030h mov 70h,#00h mov 71h,#00h mov 72h,#00h mov 73h,#00h mov 74h,#00h mov 75h,#00hmain: mov tmod,#50h mov tl1,#00h setb tr1loop:mov r3,#00h mov a,tl1 jz loop lcall bcd lcall momey lcall displaybcd: inc r3 mov tl1,#00h mov a,r3 mov b,#0ah div ab mov 70h,bzzz: cjne a,#0ah,loop1 inc r4 mov r3,#00h mov 72h,r4 retloop1: mov 71h,a ;sjmp bcd retmoney:cc: cjne r3,#14h,loop2l2: mov a,70h xrl a,#00h jz loop5 xrl a,#05h jz loop5loop5: add a,#08h mov r5,a retloop2: jb cy,l1 jnb cy,l2l1: retdisplay: mov p2,#00hmov dptr,#tab2mov a,70hmovc a,a+dptrmov p0,aacall delaymov p2,#01hmov dptr,#tab1mov a,71hmovc a,a+dptrmov p0,aacall delaymov p2,#02hmov dptr,#tab2mov a,72hmovc a,a+dptrmov p0,aacall delaymov p2,#03hmov dptr,#tab2mov a,73hmovc a,a+dptrmov p0,aacall delaymov p2,#04hmov dptr,#tab1mov a,74hmovc a,a+dptrmov p0,aacall delay mov p2,#05hmov dptr,#tab2mov a,75hmovc a,a+dptrmov p0,aacall delayretdelay:mov r4,#10loop2:mov r5,#100loop3:djnz r5,loop3djnz r4,loop2rettab1 :db 0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xeftab2 :db 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f end仿真结果protues三硬件实现1. 0255计数器程序：#includereg52.hunsigned char code table10=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char code bit_table6=0x00,0x01,0x02,0x03,0x04,0x05;unsigned char num,flag;void display();void delay(unsigned int aa);sbit dula=p26;sbit wela=p27;/sbit d=p35;sbit d1=p10;/*-系统初始化-*/void init_timer()tmod=0x61;th1=0x00;tl1=0x00;tr1=1;th0=-50000/256;tl0=-50000%256;et0=1;tr0=1;ea=1;/tf1=0;void main() /p2 = 0xff;/p0 = 0x00; init_timer();while(1)num=tl1;display();delay(1);void display()unsigned int bai,shi,ge;bai=num/100;shi=num%100/10;ge=num%10;wela=1;p0=0xfe;wela=0;p0=0x00;dula=1;p0=tablebai;dula=0;p0=0xff;delay(1);wela=1;p0=0xfd;wela=0;p0=0x00;dula=1;p0=tableshi;dula=0;p0=0xff;delay(1);wela=1;p0=0xfb;wela=0;p0=0x00;dula=1;p0=tablege;dula=0;p0=0xff;delay(1);void delay(unsigned int aa)unsigned int i,j;for(i=0;iaa;i+)for(j=0;j110;j+);void quf() interrupt 1if(flag=0)d1=0;flag=1;elsed1=1;flag=0;th0=-50000/256;tl0=-50000%256;硬件实现图：2. 050000计数器程序：#includeunsigned int code table10=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char code bit_table6=0x00,0x01,0x02,0x03,0x04,0x05;sbit dula=p26;sbit wela=p27;unsigned int num=0,flag;sbit d1=p10;unsigned int i,j,k,x,y,z;void bcd();void display();void delay(unsigned int aa)unsigned char i,j;for(i=0;iaa;i+)for(j=0;j110;j+);/*-系统初始化-*/void init()tmod=0x51;th1=0x00;tl1=0x00;tr1=1;th0=-5000/256;tl0=-5000%256;et0=1;tr0=1;ea=1;x=0;y=0,z=0;display();while(1)if(tl1!=0x00)bcd();display();void bcd()tl1=0;num+;void display()if(num=50000)num=0; i=num/100000;j=num/10000%10;k=num/1000%10;x=num/100%10;y=num/10%10;z=num%10;wela=1;p0=0xfe;wela=0;p0=0x00;dula=1;p0=tablei;dula=0;p0=0xff;delay(1);wela=1;p0=0xfd;wela=0;p0=0x00;dula=1;p0=tablej;dula=0;p0=0xff;delay(1);wela=1;p0=0xfb;wela=0;p0=0x00;dula=1;p0=tablek;dula=0;p0=0xff;delay(1);wela=1;p0=0xf7;wela=0;p0=0x00;dula=1;p0=tablex;dula=0;p0=0xff;delay(1);wela=1;p0=0xef;wela=0;p0=0x00;dula=1;p0=tabley;dula=0;p0=0xff;delay(1);wela=1;p0=0xdf;wela=0;p0=0x00;dula=1;p0=tablez;dula=0;p0=0xff;delay(1);void main()init();void quf() interrupt 1if(flag=0)d1=0;flag=1;elsed1=1;flag=0;th0=-5000/256;tl0=-5000%256;硬件实现图：3.出租车计费器程序：#includeunsigned char code table1=0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff,0xef;unsigned char code table2=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned int w,x,y,z,i,j,k,km,money,flag,num;sbit dula=p26;/段选sbit wela=p27;/位选sbit d1=p10;void delay(unsigned int aa);void init();void bcd();void display();/*-主函数-*/void main()init();void delay(unsigned int aa)unsigned char m,n;for(m=0;maa;m+)for(n=0;n110;n+);/*-初始化函数-*/void init()tmod=0x50;th1=0x00;tl1=0x00;tr1=1;km=0;money=50;th0=-50000/256;tl0=-50000%256;et0=1;tr0=1;ea=1;while(1)while(tl1=0x00)/动态扫描display();km+;bcd(); /*-出租车的计费系统进行设置-*/ void bcd()tl1=0x00;if(km=20)/2km以内 起步价5元money=50;display();else/2km后0.8元/0.5km且每500米计费刷新一次if(km%10)%5=0)money=money+8;else;display();/*-*/void display()/显示函数w=km/1000;x=km/100%10;y=km/10%10;z=km%10;i=money/100;j=money/10%10;k=money%10;wela=1;p0=0xfe;wela=0;p0=0x00;dula=1;p0=table2x;dula=0;p0=0xff;delay(1);wela=1;p0=0xfd;wela=0;p0=0x00;dula=1;p0=table1y;dula=0;p0=0xff;delay(1);/这位后有小数点wela=1;p0=0xfb;wela=0;p0=0x00;dula=1;p0=table2z;dula=0;p0=0xff;delay(1);wela=1;p0=0xf7;wela=0;p0=0x00;dula=1;p0=t