一个单片机控制三个单片机通讯

一个单片机控制三个单片机通讯一个单片机控制三个单片机通讯一个单片机控制三个单片机通讯xxx公司一个单片机控制三个单片机通讯文件编号：文件日期：修订次数：第1.0次更改批准审核制定方案设计，管理制度总图从机主机从机的程序#ifndef_receive_data_h#define_receive_data_h#include<>#defineucharunsignedchar#defineuintunsignedintucharbuf;ucharaddr;sbitP23=P2^3;#endif#include""voiddelay(uintt){ uinti; while(t--) { for(i=0;i<125;i++); }}ucharrecvdata(){ while(!RI); if(RB8==1) return0xee; buf=SBUF; RI=0; return0;}voidinit(){ TMOD=0x20; TH1=250; TL1=250; TR1=1; PCON=0x80; SCON=0xd0; REN=1; //当REN等于0时，禁止接收数据}voidmain(){ uchari=0; uchartmp=0xff; P1=0xff; addr=P1&0x0f; P23=1; init(); EA=1; while(1) { SM2=1; while(tmp!=addr) { RI=0; while(!RI); tmp=SBUF; RI=0; } SM2=0; tmp=recvdata(); if(tmp==0x00) { P0=buf; P23=0; delay(30); P23=1; } }}主机的程序#ifndef_send_data_h#define_send_data_h//防止被重复引用#include<>#defineucharunsignedchar#defineuintunsignedint#defineSUCC0x2a//接收成功#defineERR0xf0//接收错误#defineMAXLEN64//缓冲区最大长度ucharbuf;ucharget_key,key,addr;#endif#include""voiddelay(uintt){ uinti; while(t--) { for(i=0;i<125;i++); }}ucharkeyscan(){ ucharscancode,tmpcode; P1=0xf0; if((P1&0xf0)!=0xf0) { delay(10); if((P1&0xf0)!=0xf0) { scancode=0xfe; while((scancode&0x10)!=0) { P1=scancode; if((P1&0xf0)!=0xf0) { tmpcode=((P1&0xf0)|0x0f); return((~scancode)+(~tmpcode)); } elsescancode=(scancode<<1)|0x01; } } } return0;}voidsenddata(ucharbuf){ TI=0; TB8=0; SBUF=buf; while(!TI); TI=0;}voidinit(){ TMOD=0X20; TH1=250; TL1=250; TR1=1; PCON=0X80; SCON=0XD0;}voidgetkey(){ switch(get_key) { case0x11:key=0xc0;break; case0x21:key=0xf9;break; case0x41:key=0xa4;break; case0x81:key=0xb0;break; case0x12:key=0x99;break; case0x22:key=0x92;break; case0x42:key=0x82;break; case0x82:key=0xf8;break; case0x14:key=0x80;break; case0x24:key=0x90;break; case0x44:key=0x88;break; case0x84:key=0x83;break; case0x18:key=0xc6;break; case0x28:key=0xa1;break; case0x48:key=0x86;break; case0x88:key=0x8e;break; default:break; }}voidmain(){ uchari=0; key=0xc0; while(1) { get_key=keyscan(); getk