DS12887初始化程序 #defineucharunsignedchar #defineuintunsignedint #include<reg52.h> #include<stdio.h> #include<absacc.h> #include<math.h> #include<string.h> #include<ctype.h> #include<stdlib.h> #defineP128870XBYTE[0x4000] #defineP128871XBYTE[0x4001] #defineP128872XBYTE[0x4002] #defineP128873XBYTE[0x4003] #defineP128874XBYTE[0x4004] #defineP128875XBYTE[0x4005] #defineP128876XBYTE[0x4006] #defineP128877XBYTE[0x4007] #defineP128878XBYTE[0x4008] #defineP128879XBYTE[0x4009] #defineP12887aXBYTE[0x400a] #defineP12887bXBYTE[0x400b] #defineP12887cXBYTE[0x400c] #defineP12887dXBYTE[0x400d] #defineP12887eXBYTE[0x400e] #defineP12887fXBYTE[0x400f] voidsetup12887(uchar*p); voidread12887(uchar*p); voidstart12887(void); voidsetup12887(uchar*p)//设置系统时间 { uchari; i=P12887d; P12887a=0x70;P12887b=0xa2;P128870=*p++;P128871=0xff;P128872=*p++; P128873=0xff;P128874=*p++;P128875=0xff;P128876=*p++;P128877=*p++; P128878=*p++;P128879=*p++;P12887b=0x22;P12887a=0x20; i=P12887c; } voidread12887(uchar*p)//读取系统时间 { uchara; do{a=P12887a;}while((a&0x80)==0x80); *p++=P128870;*p++=P128872;*p++=P128874;*p++=P128876; *p++=P128877;*p++=P128878;*p++=P128879; } voidstart12887(void)//启动时钟 { uchari; i=P12887d; P12887a=0x70;P12887b=0xa2;P128871=0xff;P128873=0xff;P128875=0xff; P12887b=0x22;P12887a=0x20; i=P12887c; } voidStop_calendar(void) {  REG_A=0x70; }