#include<reg52.h>#include<intrins.h>#defineDATAOUTPUTP0unsignedcharcodenum[]="0123456789ABCDEF";sbitSDA=P2^0;sbitSCL=P2^1;sbitLED=P2^2;sbitRS=P2^4;sbitRW=P2^5;sbitEN=P2^6;//unsignedcharcode