红外遥控小车程序.doc

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1、附录一程序代码红外遥控编码程序#include#defineucharunsignedchar#defineuintunsignedint#defineuintlongunsignedlongsbitp3_0=P3^0;sbitp2_1=P2^1;sbitp1_0=P1^0;sbitp1_1=P1^1;sbitp1_2=P1^2;sbitp1_3=P1^3;bitout;uintkeyvalue=0x00,flag_key=0,value1,value2,keycount=0,i,j,flag_set=0,flag_press=0;ucharcodekeycode

2、[4]={0x7f,0xbf,0xdf,0xef};ucharcodeportvalue[12]={0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x00,0x0b};ucharcodewy[8]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};//**********红外发送部分**********//ucharuser1=0x00,user2=0x00;uintcount=0,endcount=0;uintirdata=0;voiddeltime(void);voidkey_scan(vo

3、id);voidsendirdata(void);main(void){EA=1;TMOD=0x11;ET0=1;p3_0=1;P1=0xff;TH0=0xFF;TL0=0xE4;TR0=0;while(1){key_scan();if(flag_press==1){flag_press=0;TR0=1;sendirdata();}}}//**********按键扫描***********//voidkey_scan(void){for(i=0;i<=3;i++){P1=keycode[i];if(p1_3==0){keycount=i*3+0;flag_key=1;break;}

4、if(p1_2==0){keycount=i*3+1;flag_key=1;break;}if(p1_1==0){keycount=i*3+2;flag_key=1;break;}}if(flag_key==1){flag_key=0;value1=P1;deltime();value2=P1;if(value1==value2){keyvalue=portvalue[keycount];flag_set=1;flag_press=1;}while(flag_set){value2=P1;if(value1!=value2)flag_set=0;}}}//**********延时*

5、*********//voiddeltime(void){uintk;for(k=0;k<=20;k++){}}//**********定时中断**********//voidtime0int(void)interrupt1{TH0=0xFF;TL0=0xE4;count++;}//**********发送数据**********//voidsendirdata(){uchars=0,datapd=0;endcount=320;p3_0=0;count=0;do{}while(count

6、(count

7、count=20;count=0;p3_0=1;do{}while(count