簡單的單片機計算器程序

1、請支持原創(chuàng)，謝謝1電路圖.1EDR. 4卜 XTfciLI戸口 JYKMJ L fO.lAElt LXTA12口環(huán) OS 薩 口 MKIH Lnarf口 m 右 L 環(huán)嗨 FQja'AK ro.TA&fF3FZIY.iB pz.vje PZACLALEK.AIZl0FZAG LPUD Pl.lF1Z 2PZJ&'AR FZ.trAVrain 映F3.1H?<P rannn M VllTTTiF3.»nnPISP3ST1fAFITU1!-Sl.inm.IEDH ,/*2、程序:*desig n by DX from GDOU*/* #in elud

2、e <reg51.h>#in clude vintrin s.h>#defi ne uint8 un sig ned char sbit led 仁P"0;sbit led2=P1A1;sbit led3=P"2;sbit led4=P1A3;long int coun t1,co un t2;/存放上次的輸入和現(xiàn)在的輸入uint8 symbol,p; long int outputco unt;存放符號的數(shù)值p用于多數(shù)輸入清屏作用存放結(jié)果uint8 KeyCodeTable=0x28,0x14,0x24,0x44,0x12,0x22,0x42,0x11,

3、0x21,0x41,0x18,0x88,0x84,0x82,0x81,0x48;/鍵盤按鍵特征表int table=0XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,0XF8,0X80,0X90 ;/ 不懂 uint8 a4;void init()uint8 j;a0=0xc0;for(j=1;j<4;j+)aj=0xff;count1=0;count2=0;symbol=0;p=0;outputcount=0;void delayms(int x) /延時程序 uint8 i;while(x-) for(i=0;i<120;i+);void display()

4、 /LED 顯示P0 = a0; led1=0; delayms(5); led1=1;P0 = a1; led2=0;delayms(5);led2=1;P0 = a2; led3=0; delayms(5); led3=1;P0 = a3; led4=0; delayms(5); led4=1;uint8 keyscan()/鍵盤掃描uint8 sCode,kCode,i,k;P2=0xf0;if(P2&0xf0)!=0xf0)delayms(2);/ 軟件去抖if(P2&0xf0)!=0xf0)sCode=0xfe;for(k=0;k<4;k+)P2=sCode;d

5、elayms(12); if(P2&0xf0)!=0xf0)kCode=P2; for(i=0;i<16;i+) if(kCode=KeyCodeTablei) return(i);elsesCode=_crol_(sCode,1);return(100);/沒按鍵輸入void output(long int x)int i;uint8 j=0;uint8 z3=0,0,0 if(x>=1000) i=x/1000;z0=i; aj=tablei; j+; if(x>=100) i=(x-z0*1000)/100; z1=i;aj= tablei;j+; if(x&g

6、t;=10) i=(x-z0*1000-z1*100)/10; z2=i;aj= tablei;j+; i=x%10; aj=tablei;LEDvoid Calculate(uint8 key) / 計算程序并顯示 uint8 i,j;static k=0;if(key<10) if(p) p=0;for(j=0;j<4;j+)aj=0xff;ak=tablekey;k=+k%4;count2*=10;count2+=key;outputcount=count2;/把當(dāng)前按下的值先賦給 outputcountelse if(key=10)/清零鍵 k=0 ;init();else

7、 if(key<15) k=0;p=1;switch(symbol) /多則運算時用于把之前的結(jié)果賦給 COUNT1case 0 :count1=count2 ;break;case 11:count1+=count2;break;case 12:count1-=count2;break;case 13:count1*=count2;break;case 14:count1/=count2;break;default: break;count2=0; /有符號輸入時把之前的值賦給 count1, 并把符號標(biāo)號 賦給 symbol;symbol=key;elseswitch(symbol)case 11:outputcount=count1+count2;break;case 12:outputcount=count1-count2;break;case 13:outputcount=count1*count2;break;case 14:outputcount=count1/count2;break; default:break;for(j=0;j<4;j+)aj=0xff;output(outputcount);void main()uint8 key;