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单片机c语言应用100例 单片机C语言 单片机C语言应用

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单片机C语言应用100例,单片机c语言应用100例,单片机C语言,单片机C语言应用

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/ex99 #include / /* PC */ void Send(unsigned char dat) SBUF=dat; while(TI=0) ; TI=0; /* 1ms (3j+2)i=(333+2) 10=1010()1 */ void delay1ms() unsigned char i,j; for(i=0;i10;i+) for(j=0;j33;j+) ; /* */ void delaynms(unsigned char x) unsigned char i; for(i=0;ix;i+) delay1ms(); /* */ void main(void) unsigned char i; TMOD=0x20; /T12 TH1=0xfd; /涨T1 TL1=0xfd; /涨T1 PCON=0x00; /9600 TR1=1; /t1 SCON=0x40; /1 while(1) for(i=0;i200;i+) / Send(i); /i delaynms(100); /100ms /100 #include / #include /_nop_() sbit RS=P20; /RSP2.0 sbit RW=P21; /RWP2.1 sbit E=P22; /EP2.2 sbit BF=P07; /BFP0.7 unsigned char code digit =“0123456789“; / unsigned int v; / unsigned char count; /涨T0 bit flag; /1 /* 1ms (3j+2)*i=(333+2)10=1010()1 */ void delay1ms() unsigned char i,j; for(i=0;i10;i+) for(j=0;j33;j+) ; /* n */ void delay(unsigned char n) unsigned char i; for(i=0;in;i+) delay1ms(); /* resultresult=1;result=0 */ unsigned char BusyTest(void) bit result; RS=0; /涨RSRW RW=1; E=1; /E=1 _nop_(); / _nop_(); _nop_(); _nop_(); / result=BF; /result E=0; /E return result; /* dictate */ void WriteInstruction (unsigned char dictate) while(BusyTest()=1); / RS=0; /涨RSR/W RW=0; E=0; /E(8-6E壬 / E01“0“ _nop_(); _nop_(); / P0=dictate; /P0 _nop_(); _nop_(); _nop_(); _nop_(); / E=1; /E _nop_(); _nop_(); _nop_(); _nop_(); / E=0; /E /* x */ void WriteAddress(unsigned char x) WriteInstruction(x|0x80); /涨“80H+x“ /* (ASCII) y() */ void WriteData(unsigned char y) while(BusyTest()=1); RS=1; /RSRW RW=0; E=0; /E(8-6E壬 / E01“0“ P0=y; /P0 _nop_(); _nop_(); _nop_(); _nop_(); / E=1; /E _nop_(); _nop_(); _nop_(); _nop_(); / E=0; /E /* LCD */ void LcdInitiate(void) delay(15); /15msLCD WriteInstruction(0x38); /162578 delay(5); /5ms WriteInstruction(0x38); delay(5); WriteInstruction(0x38); / delay(5); WriteInstruction(0x0c); / delay(5); WriteInstruction(0x06); / delay(5); WriteInstruction(0x01); / delay(5); /* */ void display_sym(void) WriteAddress(0x00); /,11 WriteData(v); /vLCD WriteData(=); /=LCD /* */ void display_val(unsigned int x) unsigned char i,j,k,l; /j,k,lİ i=x/1000; / j=(x%1000)/100; / k=(x%100)/10; / l=x%10; / WriteAddress(0x02); /,13 WriteData(digiti); /LCD WriteData(digitj); /LCD WriteData(digitk); /LCD WriteData(digitl); /LCD /* r/min */ void display_unit(void) WriteAddress(0x06); /,27 WriteData(r); /rLCD WriteData(/); /LCD WriteData(m); /mLCD WriteData(i); /iLCD WriteData(n); /nLCD /* */ void main(void) LcdInitiate(); /LCD TMOD=0x51; /T11T01 TH0=(65536-46083)/256; /T0850ms TL0=(65536-46083)%256; /T0850ms EA=1; / ET0=1; /T0 TR0=1; /T0 count=0; /T00 display_sym(); / display_val(0000); / display_unit(); / while(1) / TR1=1; /T1 TH1=0; /T180 TL1=0; /T180 flag=0; /仹1 while(flag=0) / ; v=(TH1*256+TL1)*60/16; /16 display_val(v); / /* T0 */ void Time0(void ) interrupt 1 using 1 /T011鹤 count+; /T01count1 if(count=20) /201 flag=1; /11 count=0; /0 TH0=(65536-46083)/256; /T08 TL0=(65536-46083)%256; /T08 /10P0P1 #include / void main(void) unsigned char m,n; unsigned int s; m=64; n=71; s=m*n; /s=64*71=4544,168P18P0 /4544=17*256+192=H3*16*16*16+H2*16*16+H1*16+H0 /25617+192/256=H3*16+H2+H1*16+H0/256 /816H3*16+H2174544256 /816H1*16+H01924544256 P1=s/256; /8P1 P1=17=11H=0001 0001B, P1.0P1.4 P0=s%256; /8P0 , P3=192=c0H=1100 0000B,P3.1,P3.6,P3.7 /11P1P0 #include / void main(void) P1=36/5; / P0=(36%5)*10)/5; / while(1) ; / /12P08LED #include / /* */ void delay(void) unsigned int i; for(i=0;i20000;i+) ; /* z */ void main(void) unsigned char i; for(i=0;i255;i+) /i255 P0=i; /iP0 delay(); / /13P0“ #include / void main(void) P0=(40)/P0 while(1) ; / /14P0 #include / void main(void) P0=(84)?8:4;/P0P0=8=0000 1000B while(1) ; / /15P0“ #include / void main(void) P0=0xa20x3c;/P0P0=8=0000 1000B while(1) ; / /16P0 #include / void main(void) P0=0x3b2;/P0P0=1110 1100B=0xec while(1) ; / /17“ #include / sbit F=P14; /F P1.4 sbit X=P15; /X P1.5 sbit Y=P16; /Y P1.6 sbit Z=P17; /Z P1.7 void main(void) while(1) F=(X) /F ; /18P18LED #include / /* */ void delay(void) unsigned int n; for(n=0;n1; /P110 delay(); / /19ifP08LED #include / sbit S1=P14; /S1P1.4 sbit S2=P15; /S2P1.5 /* */ void main(void) while(1) if(S1=0) /S1 P0=0x0f; /P0LED if(S2=0) /S2 P0=0xf0; /P0LED #include /51 void main(void) P1=0xfe; /P1=1111 1110BP1.0 /20swtichP08LED #include / sbit S1=P14; /S1P1.4 /* */ void delay(void) unsigned int n; for(n=0;n10000;n+) ; /* */ void main(void) unsigned char i; i=0; /i0 while(1) if(S1=0) /S1 delay(); / if(S1=0) /S1 i+; /i1 if(i=9) /i=91 i=1; switch(i) / case 1: P0=0xfe; /LED break; case 2: P0=0xfd; /LED break; case 3:P0=0xfb; /LED break; case 4:P0=0xf7; /LED break; case 5:P0=0xef; /LED break; case 6:P0=0xdf; /LED break; case 7:P0=0xbf; /LED break; case 8:P0=0x7f; /LED break; default: /LED P0=0xff; /23do-whileP08LED #include / /* 60ms (3*100*200=60000s) */ void delay60ms(void) unsigned char m,n; for(m=0;m100;m+) for(n=0;n200;n+) ; /* */ void main(void) do P0=0xfe; /LED delay60ms(); P0=0xfd; /LED delay60ms(); P0=0xfb; /LED delay60ms(); P0=0xf7; /LED delay60ms(); P0=0xef; /LED delay60ms(); P0=0xdf; /LED delay60ms(); delay60ms(); P0=0xbf; /LED delay60ms(); P0=0x7f; /LED delay60ms(); while(1); /8LED /24P08LED #include / /* 60ms (3*100*200=60000s) */ void delay60ms(void) unsigned char m,n; for(m=0;m100;m+) for(n=0;n200;n+) ; /* */ void main(void) unsigned char i; unsigned char code Tab =0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f; / while(1) for(i=0;i8;i+) P0=Tabi;/P0 delay60ms();/ /25 P0 #include / /* 150ms (3*200*250=150 000s=150ms */ void delay150ms(void) unsigned char m,n; for(m=0;m200;m+) for(n=0;n250;n+) ; /* */ void main(void) unsigned char str=“Now,Temperature is :“; / unsigned char i; while(1) i=0; /i0 while(stri!=0) /0 P0=stri; /iP0 delay150ms(); /150ms i+; / /26P0 #include void main(void) unsigned char *p1,*p2; /p1,p2 unsigned char i,j; / i=25; /i25 j=15; p1= /i p2= /j P0=*p1+*p2; /*p1+*p2i+j,P0=25+15=40=0x28 /P0=0010 1000BP0.3P0.5LED while(1) ; / /27P08LED #include /* 150ms (3*200*250=150 000s=150ms */ void delay150ms(void) unsigned char m,n; for(m=0;m200;m+) for(n=0;n250;n+) ; /* */ void main(void) unsigned char code Tab=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f; unsigned char *p = unsigned char i; / while(1) for(i=0;i8;i+) P0=*pi; delay150ms(); /28P0 8 LED #include /* 150ms (3*200*250=150 000s=150ms */ void delay150ms(void) unsigned char m,n; for(m=0;m200;m+) for(n=0;n250;n+) ; /* */ void main(void) unsigned char i; unsigned char Tab =0xFF,0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF, 0x7F,0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE, 0xFE,0xFC,0xFB,0xF0,0xE0,0xC0,0x80,0x00, 0xE7,0xDB,0xBD,0x7E,0x3C,0x18,0x00,0x81, 0xC3,0xE7,0x7E,0xBD,0xDB,0xE7,0xBD,0xDB; / unsigned char *p; / p=Tab; /p while(1) for(i=0;i32;i+) /32 P0=*(p+i); /*p+i)ai delay150ms(); /150ms /29P0 P1 #include /* */ unsigned int sum(int a,int b) unsigned int s; s=a+b; return (s); /* */ void main(void) unsigned z; z=sum(2008,2009); P1=z/256; /z8 P0=z%256; /z8 while(1) ; /30P08LED #include /* */ void delay(unsigned char x) unsigned char m,n; for(m=0;mx;m+) for(n=0;n200;n+) ; /* */ void main(void) unsigned char i; unsigned char code Tab =0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F; / while(1) /LED for(i=0;i8;i+) /8 P0=Tabi; delay(100); /60ms, (3*100*200=60 000s /LED for(i=0;i8;i+) /8 P0=Tabi; delay(250); /150ms, (3*250*200=150 000s /31 #include /* 150ms */ void delay(void) unsigned char m,n; for(m=0;m200;m+) for(n=0;n250;n+) ; /* P08LED */ void led_flow(unsigned char a8) unsigned char i; for(i=0;i8;i+) P0=ai; delay(); /* */ void main(void) unsigned char code Tab =0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F; / led_flow(Tab); /32P08LED #include /* 150ms */ void delay(void) unsigned char m,n; for(m=0;m200;m+) for(n=0;n250;n+) ; /* P08LED */ void led_flow(unsigned char *p) / unsigned char i; while(1) i=0; /i0 while(*(p+i)!=0) / P0=*(p+i);/ P0 delay(); / i+; / /* */ void main(void) unsigned char code Tab =0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F, 0x7F,0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE, 0xFF,0xFE,0xFC,0xFB,0xF0,0xE0,0xC0,0x80, 0x00,0xE7,0xDB,0xBD,0x7E,0xFF,0xFF,0x3C, 0x18,0x0,0x81,0xC3,0xE7,0xFF, 0xFF,0x7E; / unsigned char *pointer; pointer=Tab; led_flow(pointer); /33P1 #include /51 unsigned char code Tab=0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F; /鱻 /* 150ms */ void delay(void) unsigned char m,n; for(m=0;m200;m+) for(n=0;n250;n+) ; /* */ void led_flow(void) unsigned char i; for(i=0;i8;i+) /8 P0=Tabi; delay(); /* */ void main(void) void (*p)(void); /庯 p=led_flow; /p while(1) (*p)(); /pled_flow /34 #include /51 unsigned char code str1 =“Temperature is tested by DS18B20“;/C unsigned char code str2 =“Now temperature is:“; / unsigned char code str3 =“The Systerm is designed by Zhang San“; unsigned char code str4 =“The date is 2008-9-30“; unsigned char *p =str1,str2,str3,str4; /p44 /* 150ms */ void delay(void) unsigned char m,n; for(m=0;m200;m+) for(n=0;n250;n+) ; /* P08LED */ void led_display(unsigned char *x ) / unsigned char i,j; for(i=0;i4;i+) /4 j=0; /0 while(*(xi+j)!=0) /ij P0=*(xi+j); /P0 delay(); / j+; / /* */ void main(void) unsigned char i; while(1) for(i=0;i4;i+) led_display(p); / /35ctype.h #include /51 #include void main(void) while(1) P3=isalpha(_)?0xf0:0x0f;/_P3=0xf0 /36intrins.h #include /51 #include /isalpha /* 150ms */ void delay(void) unsigned char m,n; for(m=0;m200;m+) for(n=0;n250;n+) ; /* */ void main(void) P3=0xfe; /P3=1111 1110B while(1) P3=_crol_(P3,1);/ P31P3 delay(); / /37stdlib.h #include /51 #include /isalpha /* 150ms */ void delay(void) unsigned char m,n; for(m=0;m200;m+) for(n=0;n250;n+) ; /* */ void main(void) unsigned char i; while(1) for(i=0;i10;i+) /10 P3=rand()/160; /160P3 delay(); /38string.h #include /51 #include /isalpha void main(void) unsigned char str1 =“Now, The temperature is :“; unsigned char str2 =“Now, The temperature is 36 Centgrade:“; unsigned char i; i=strcmp(str1,str2); /i if(i=0) /str1=str2 P3=0x00; else if(istr2 P3=0x0f; while(1) ; / /39 #include /51 # define F(a,b) (a)+(a)*(b)/256+(b) /壬ab void main(void) unsigned char i,j,k; i=40; j=30; k=20; P3=F(i,j+k); /ij+k while(1) ; /42T0P28LED #include / 51 /* */ void main(void) / EA=1; / / ET0=1; /T0 TMOD=0x01; /T01 TH0=(65536-46083)/256; /T08 TL0=(65536-46083)%256; /T08 TR0=1; /T0 TF0=0; P2=0xff; while(1)/ while(TF0=0) ; TF0=0; P2=P2; TH0=(65536-46083)/256; /T08 TL0=(65536-46083)%256; /T08 /43T11KHz #include / 51 sbit sound=P37; /soundP3.7 /* */ void main(void) / EA=1; / / ET0=1; /T0 TMOD=0x10; /T11 TH1=(65536-921)/256; /T18 TL1=(65536-921)%256; /T18 TR1=1; /T1 TF1=0; while(1)/ while(TF1=0) ; TF1=0; sound=sound; /P3.7 TH1=(65536-921)/256; /T08 TL1=(65536-921)%256; /T08 /44T0P18LED #include / 51 sbit S=P34; /SP3.4 /* */ void main(void) / EA=1; / / ET0=1; /T0 TMOD=0x02; /T02 TH0=256-156; /T08 TL0=256-156; /T08 TR0=1; /T0 while(1)/ while(TF0=0) / if(S=0) /S0 P1=TL0; /TL01P1 TF0=0; /TF00 /45T01LED #include / 51 sbit D1=P20; /D1P2.0 /* */ void main(void) EA=1; / ET0=1; /T0 TMOD=0x01; /T02 TH0=(65536-46083)/256; /T08 TL0=(65536-46083)%256; /T08 TR0=1; /T0 while(1)/ ; /* T0 */ void Time0(void) interrupt 1 using 0 /interrupt /1T000鹤 D1=D1; /P2.0 TH0=(65536-46083)/256; /T08 TL0=(65536-46083)%256; /T08 /46T0 #include / 51 sbit D1=P20; /D1P2.0 unsigned char Countor; /涨T0 /* */ void main(void) EA=1; / ET0=1; /T0 TMOD=0x01; /T02 TH0=(65536-46083)/256; /T08 TL0=(65536-46083)%256; /T08 TR0=1; /T0 Countor=0; /0 while(1)/ ; /* T0 */ void Time0(void) interrupt 1 using 0 /interrupt /1T000鹤 Countor+; /1 if(Countor=20) /201s D1=D1; /P2.0 Countor=0; /Countor00 TH0=(65536-46083)/256; /T08 TL0=(65536-46083)%256; /T08 /47T1LED #include / 51 sbit D1=P20; /D1P2.0 sbit D2=P21; /D2P2.1 unsigned char Countor1; /涨T1 unsigned char Countor2; /涨T1 /* */ void main(void) EA=1; / ET1=1; /T1 TMOD=0x10; /T11 TH1=(65536-46083)/256; /T18 TL1=(65536-46083)%256; /T18 TR1=1; /T1 Countor1=0; /0 Countor2=0; /0 while(1)/ ; /* T1 */ void Time1(void) interrupt 3 using 0 /interrupt /3T100鹤 Countor1+; /Countor11 Countor2+; /Countor21 if(Countor1=2) /2100ms D1=D1; /P2.0 Countor1=0; /Countor100 if(Countor2=8) /8400ms D2=D2; /P2.1 Countor2=0; /Countor100 TH1=(65536-46083)/256; /T18 TL1=(65536-46083)%256; /T18 /48T11KHz #include / 51 sbit sound=P37; /soundP3.7 /* */ void main(void) EA=1; / ET1=1; /T1 TMOD=0x10; /TMOD=0001 000BT11 TH1=(65536-921)/256; /T18 TL1=(65536-921)%256; /T18 TR1=1; /T1 while(1)/ ; /* T1 */ void Time1(void) interrupt 3 using 0 /interrupt sound=sound; TH1=(65536-921)/256; /T18 TL1=(65536-921)%256; /T18 /49T0“ #include /51 sbit sound=P37; /soundP3.7 unsigned int C; /涨 /C #define l_dao 262 /l_dao1262Hz #define l_re 286 /l_re2286Hz #define l_mi 311 /l_mi3311Hz #define l_fa 349 /l_fa4349Hz #define l_sao 392 /l_sao5392Hz #define l_la 440 /l_a6440Hz #define l_xi 494 /l_xi7494Hz /C #define dao 523 /dao1523Hz #define re 587 /re2587Hz #define mi 659 /mi3659Hz #define fa 698 /fa4698Hz #define sao 784 /sao5784Hz #define la 880 /la6880Hz #define xi 987 /xi7523H /C #define h_dao 1046 /h_dao11046Hz #define h_re 1174 /h_re21174Hz #define h_mi 1318 /h_mi31318Hz #define h_fa 1396 /h_fa41396Hz #define h_sao 1567 /h_sao51567Hz #define h_la 1760 /h_la61760Hz #define h_xi 1975 /h_xi71975Hz /* 1200ms */ void delay() unsigned char i,j; for(i=0;i250;i+) for(j=0;j250;j+) ; /* */ void main(void) unsigned char i,j; / unsigned int code f=re,mi,re,dao,l_la,dao,l_la, / l_sao,l_mi,l_sao,l_la,dao, l_la,dao,sao,la,mi,sao, re, mi,re,mi,sao,mi, l_sao,l_mi,l_sao,l_la,dao, l_la,l_la,dao,l_la,l_sao,l_re,l_mi, l_sao, re,re,sao,la,sao, fa,mi,sao,mi, la,sao,mi,re,mi,l_la,dao, re, mi,re,mi,sao,mi, l_sao,l_mi,l_sao,l_la,dao, l_la,dao,re,l_la,dao,re,mi, re, l_la,dao,re,l_la,dao,re,mi, re, 0xff; /0xff / /“4“4“2“2“1“1 unsigned char code JP =4,1,1,4,1,1,2, 2,2,2,2,8, 4,2,3,1,2,2, 10, 4,2,2,4,4, 2,2,2,2,4, 2,2,2,2,2,2,2, 10, 4,4,4,2,2, 4,2,4,4, 4,2,2,2,2,2,2, 10, 4,2,2,4,4, 2,2,2,2,6, 4,2,2,4,1,1,4, 10, 4,2,2,4,1,1,4, 10 ; EA=1; / ET0=1; /T0 TMOD=0x00; / T0113 while(1) / i=0; /1f0 wh