部分答案二極管點亮的時#include<>#include<>#defineucharunsignedcharucharT_count=0;#include<>#defineuintunsignedint#defineucharunsignedcharsbitk1=P3^2;sbitk2=P3^3;#include<>#defineucharunsignedchar#defineuintunsignedintucharcodetab[]={0xf6,0xf9,0xb8,0xb8,0xbf};ucharT_count=0;uchari=1;voidt0Proc()interrupt1{TH0=0x3c;TL0=0xb0;if(++T_count==10){P0=tab[i];i=(i+1)%5;T_count=0;}}voidmain(){TMOD=1;TH0=0x3c;TL0=0xb0;EA=1;TR0=1;ET0=1;P0=tab[0];6個數(shù)碼管上分別顯示自己學號的后六位數(shù)字。#include<>#include<>#defineucharunsignedchar#defineuintunsignedintucharcodetab[]={};一個簡易30s的倒計時秒表，秒表的顯#include<>#defineucharunsignedcharvoiddelay1s(){uchari;for(i=0;i<10;i++){TH1=0x3c;TL1=0xb0;TR1=1;用外中斷0來控制，去實現(xiàn)下列功能。#include<>#defineuintunsignedint#defineucharunsignedcharucharcodetab[]={0xcc,0x30};sbitk1=P3^2;采用定時器方式1使得8個發(fā)光二極管按如下方式點亮，循環(huán)#include<>#defineucharunsignedchar#defineuintunsignedintucharcodetab[]={0x0f,0xf0,0xcc,0x00};ucharT_count=0;uchari=1;voidt0Proc()interrupt1{TH0=0x3c;TL0=0xb0;if(++T_count==20){P0=tab[i];i=(i+1)%4;T_count=0;}}voidmain(){TMOD=1;TH0=0x3c;TL0=0xb0;EA=1;TR0=1;ET0=1;Ptab5”3個數(shù)字，循環(huán)的時間為1s。#include<>#defineucharunsignedchar#defineuintunsignedintucharcodetab[]={0xbf,0x86,0xed};ucharT_count=0;uchari=1;voidintoProc()interrupt1{TH0=0x3c;TL0=0xb0;if(++T_count==10){P0=tab[i];i=(i+1)%3;T_count=0;}}voidmain(){TMOD=1;TH0=0x3c;TL0=0xb0;EA=1;TR0=1;ET0=1;P0=tab[0];4個數(shù)碼管上穩(wěn)定顯示出“A”“C”“E”“P”#include<>#defineucharunsignedchar#defineuintunsignedintvoiddelay(uintx){uchari;while(x--){for(i=0;i<100;i++);}}voidmain(){while(1){P0=0xf7;一個20s的簡易秒表，當按鍵K1按下時，秒表暫停#include<>#defineuintunsignedint#defineucharunsignedcharuchartab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};sbitk1=P3^2;sbitk2=P3^3;ucharT_count=0;uchari=0;voiddelay(intx){uchari;while(x--){for(i=0;i<100;i++);}}voidt0Proc()interrupt1{c#include<>#include<>#defineucharunsignedchar#defineuintunsignedintsbitk1=P3^2;ucharcodetab[]={0x01,0x03,0x07,0x0f,0x1f,0x3f,0x7f,0xff};ucharT_count=0;uchari=1;管的狀態(tài)#include<>#defineuintunsignedint#defineucharunsignedcharsbitk1=P3^2;sbitk2=P3^3;間為1s，狀態(tài)2顯示的時間為2s，狀態(tài)3顯示的時間為#po}inouin\unsi6nopin\un}TH0=0xeD:T10=0xq0:wiDvSeo}i})++T_Doun\==t0(}dt=~\eq]i[:i=)i+t(%e:T_count=0;State=1;}break;case1:if(++T_count==20){P1=~tab[i];i=(i+1)%3;T_count=0;State=2;}break;case2:if(++T_count==30){P1=~tab[i];i=(i+1)%3;i=1;T_count=0;State=0;}break;}}voidmain(){TMOD=1;TH0=0x3c;TL0=0xb0;EA=1;ET0=1;TR0=1;P1=~tab[0];while(1);}統(tǒng)，實現(xiàn)8個發(fā)光二極管從左到右點亮，每個發(fā)光二極管點亮的時間為2s，然后從右到左亮，每個發(fā)光二極管點亮的時間為.#include<>#include<>#defineucharunsignedcharucharcodetab[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};ucharcodetab1[]={0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01};ucharState=0;ucharT_count=0;uchari=1;voidt0Proc()interrupt1{TH0=0x3c;TL0=0xb0;switch(State){case0:if(++T_count==20){P2=tab[i];i=(i+1)%8;if(i==7){State=1;}T_count=0;}break;case1:if(++T_count==15){i=(i+1)%8;P2=tab1[i];if(i==7){State=0;i=1;}T_count=0;}break;}}voidmain(){TMOD=1;TH0=0x3c;TL0=0xb0;EA=1;ET0=1;TR0=1;P2=tab[0];while(1);}#include<>#defineucharunsignedchar#defineuintunsignedintucharcodetab[]={0x06,0x5b,0x06,0x6f};voiddelay(intx){uchari;while(x--){for(i=0;i<120;i++);}}voidmain(){P0=tab[0];P2=tab[1];P3=tab[2];P1=tab[3];delay(500);}20.完成下面電路的功能，P1口對應(yīng)發(fā)光二極管的狀態(tài)，狀態(tài)#include<>#defineucharunsignedchar#defineuintunsignedintucharcodetab[]={0x0c,0x0e,0x0f,0x00};ucharT_count=0;ucharState=0;uchari=1;voidt0Proc()interrupt1{TH0=0x3c;TL0=0xb0;switch(State){case0:if(++T_count==30){P1=~tab[i];i=(i+1)%4;T_count=0;State=1;}break;case1:if(++T_count==10){P1=~tab[i];i=(i+1)%4;T_count=0;State=2;}break;case2:if(++T_count==5){P1=~tab[i];i=(i+1)%4;T_count=0;State=3;}break;case3:if(++T_count==1){P1=~tab[i];i=(i+1)%4;T_count=0;State=0;}break;}}voidmain(){TMOD=1;TH0=0x3c;TL0=0xb0;EA=1;ET0=1;TR0=1;P1=~tab[0];while(1);}分別控制數(shù)碼管顯示數(shù)字0~9的順序，當按下K1鍵時按從0#include<>#defineucharunsignedchar#defineuintunsignedintucharcodetab1[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};ucharcodetab2[]={0x6f,0x7f,0x07,0x7d,0x6d,0x66,0x4f,0x5b,0x06,0x3f};ucharT_count=0;sbitk1=P1^0;sbitk2=P1^1;uchari=0;voidt0Proc()interrupt1{TH0=0x3c;TL0=0xb0;if(++T_count==10){T_count=0;i=(i+1)%10;}}voidmain(){TMOD=1;TH0=0x3c;TL0=0xb0;EA=1;ET0=1;TR0=1;P0=~0x3f;while(1){if(k1==0&&k2==1){P0=~tab1[i];}elseif(k1==1&&k2==0){P0=~tab2[i];}}}24.89C51與PC通過串口通信，單片機采用方式3串行通信，#include<>#include<>char*startPoint;char*endPoint;voidsendData(){if(startPoint<=endPoint){SBUF=*startPoint;++startPoint;}}voidstartSend(char*start,char*end){startPoint=start;endPoint=end;sendData();}voidserialPorc()interrupt4{if(TI){TI=0;sendData();}else{RI=0;if(0x53==SBUF){startSend(0x30,0x3f);}elseif(0x50==SBUF){startSend(0x40,0x5f);}}}voidmain(){TMOD=0x20;TH1=0xe6;TL1=0xe6;TR1=1;SCON=0xd0;EA=1;ES=1;while(1);}25.交通控制系統(tǒng)，如下圖所示，是交叉路口，要求：綠燈亮9秒后，黃燈閃3秒，后紅燈亮9秒，兩個數(shù)碼管分別顯視各種#include<>#defineucharunsignedchar#defineuintunsignedintucharcodetab[]={0x6f,0x7f,0x07,0x7d,0x6d,0x66,0x4f,0x5b,0x06,0x3f};ucharcodetab1[]={0x4f,0x5b,0x06,0x3f};sbitRED_A=P0^0;sbitYELLOW_A=P0^1;sbitGREEN_A=P0^2;sbitRED_B=P0^3;sbitYELLOW_B=P0^4;sbitGREEN_B=P0^5;ucharOperation_Type=1;//操作類型變量ucharT_count=0;uchari=0;voidt0Proc()interrupt1{TH0=0x3c;TL0=0xb0;switch(Operation_Type){case1://紅燈亮RED_A=0;YELLOW_A=1;GREEN_A=1;RED_B=0;YELLOW_B=1;GREEN_B=1;if(++T_count==90){T_count=0;Operation_Type=2;i=0;}if(T_count%10==0){P3=~tab[i];P1=~tab[i];i=(i+1)%10;}break;case2://黃燈閃RED_A=1;YELLOW_A=~YELLOW_A;GREEN_A=1;RED_B=1;YELLOW_B=~YELLOW_B;GREEN_B=1;if(++T_count==30){T_count=0;Operation_Type=3;i=0;}if(T_count%10==0){P3=~tab1[i];P1=~tab1[i];i=(i+1)%3;}break;case3://綠燈亮RED_A=1;YELLOW_A=1;GREEN_A=0;RED_B=1;YELLOW_B=1;GREEN_B=0;if(++T_count==90){T_count=0;Operation_Type=1;i=0;}if(T_count%10==0){P3=~tab[i];P1=~tab[i];i=(i+1)%10;}break;}}voidmain(){TMOD=1;TH0=0x3c;TL0=0xb0;EA=1;ET0=1;TR0=1;P1=~tab[0];P3=~tab[0];while(1);}數(shù)功能，并將計數(shù)值輸出到數(shù)碼管上#include<>#defineucharunsignedchar#defineuintunsignedint//0~9的段碼ucharcodeDSY_CODE[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00};//計數(shù)值分解后各個待顯示的數(shù)位ucharDSY_Buffer[]={0,0,0};ucharCount=0;sbitClear_Key=P3^6;//數(shù)碼管上顯示計數(shù)值voidShow_Count_ON_DSY(){DSY_Buffer[2]=Count/100;//獲取3個數(shù)DSY_Buffer[1]=Count%100/10;DSY_Buffer[0]=Count%10;if(DSY_Buffer[2]==0)//高位為0時不顯示{DSY_Buffer[2]=0x0a;if(DSY_Buffer[1]==0)//高位為0，若第二位為0同樣不顯示{DSY_Buffer[1]=0x0a;}}P0=DSY_CODE[DSY_Buffer[0]];P1=DSY_CODE[DSY_Buffer[1]];P2=DSY_CODE[DSY_Buffer[2]];}//主程序voidmain(){P0=0x00;P1=0x00;P2=0x00;EA=1;EX1=1;IT1=1;//下降沿觸發(fā)while(1){if(Clear_Key==0){Count=0;//清0}Show_Count_ON_DSY();}}//INT1中斷函數(shù)voidEX_INT1()interrupt2{Count++;//計數(shù)值遞增}#include<>#defineucharunsignedcharucharT_count=0;sbitLED=P1^0;voidt0Proc()interrupt1{TH0=0x3c;TL0=0xb0;if(++T_count==20){T_count=0;LED=~LED;}}voidmain(){TMOD=1;TH0=0x3c;TL0=0xb0;EA=1;ET0=1;TR0=1;while(1);}P#include<>#defineucharunsignedcharucharcodetab[]={0x01,0x03,0x07,0x0f,0x1f,0x3f,0x7f,0xff};uchari=0;//INT1中斷函數(shù)voidEX_INT1()interrupt2{P0=~tab[i];P1=tab[i];if(++i==8){i=0;}}//主程序voidmain(){P0=0xff;P1=0x00;EA=1;EX0=1;IT0=1;//下降沿觸發(fā)while(1);}#include<>#defineucharunsignedcharucharcodetab[]={0x01,0x03,0x07,0x0f,0x1f,0x3f,0x7f,0xff,0x00};ucharcodetab1[]={0x01,0x05,0x15,0x55,0x57,0x5f,0x7f,0xff,0x00};ucharT_count=0;uchari=0;ucharop_type=1;voidt1Proc()interrupt3{TH1=0x3c;TL1=0xb0;switch(op_type){case1:if(++T_count==20)