includereg52h>typedefunsignedcharuint8;typedefunsignedintuint16;uint8num=0;voiddelay(uint16n)延时
includereg51h>defineucharunsignedchardefineuintunsignedintsbitk1=P1^0;voiddelay(uintk){while(k–)
includereg52h>sbitr1=P2^0;sbitr2=P2^1;sbith1=P3^0;sbith2=P3^1;voiddelay(unsignedcharx);charscank(
#includemsp430x14x.h>unsignedcharkeybuff[10];unsignedcharkeypoint=0;voiddelay(intv){while(v!=0)v-
#includereg51.h>sbitP1_1=P1^1;/*************延时子程序*******************************/voiddelay(unsign
C代码：#includeAT89X51.h>/*************延时子程序*******************************/voiddelay(unsignedintx)/
//最少延时1ms程序voiddelay(unsignedintx)//最小1毫秒{unsignedcharj;while(x–){for(j=0;j125;j++){;}}//16进制->1
#includereg51.h>#defineuintunsignedint#defineucharunsignedcharsbitcs=P3^0;sbitwr=P3^1;voiddelay(u
其对应的C应用如下：#includereg51.h>sbitp20=P2^0;sbitp21=P2^1;sbitp22=P2^2;sbitp23=P2^3;voiddelay(unsignedi
includereg52h>defineucharunsignedcharsbitsda=P2^0;sbitscl=P2^1;uchara;voiddelay(){;;}voidstart()开
