发送程序- /************************************************/
- void delayms(uint xms)
- {
- uint i,j;
- for(i=xms;i>0;i--)
- for(j=110;j>0;j--);
- }
- /***********************************************/
- void send(uchar keynum)
- {
- SBUF=keynum;
- while(!TI);
- TI=0;
- }
- void keyscan()
- {
- uint temp,key;
- P1=0xff;
- temp=P1;
- switch(temp)
- {
- case 0x7f: key='U' ;break;
- case 0xbf: key='D';break;
- case 0xdf: key='L';break;
- case 0xef: key='R';break;
- case 0xf7: key='Y';break;
- case 0xfb: key='J';break;
- case 0xfd: key='M';break;
- case 0xfe: key='N';break;
- default :key=0;
- }
- send(key);
-
-
-
- }
- /**********************************************************/
- void main()
- {
- TMOD=0x20;
- TH1=0xfd;
- TL1=0xfd;
- TR1=1;
- SM0=0;
- SM1=1;
- EA=1;
- ES=1;
- while(1)
- {power=0;
- keyscan();
- }
- }
- =================================================================
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