两个单片机之间串口通信

1、*温度数据采集主机程序*/#include#include#include#defineuintunsignedint#defineucharunsignedcharsbitwds=P2A2;温度传感器dsl8b20ucharflag,i;ucharcodetable3;uinttemp;/uint不用uchar,uchar范闱不够人floatf_temp;voidinitb20();/dsl8b20初始化bittempreadbit(void);uchartempread(void);voidtempwritebyte(uchardat);voidtempchange(void);bitte

2、mpreadbit(void);voidtempwritebyte(uchardat);voiddelayms(uintz)uintxzy;for(x=z;x0;x-)for(y=110;y0;y-);承沐穴*串彳亍方式*voidinit()厂设置定时器1方式/TMOD=0 x20;TH1=OXFD;/波特率设置为9600bpsTL1=OXFD;TR1=1;串|方式*/SM0=0;SM1=1;PCON=0X80;ES=1;EA=1;initb20();/*发子函数*Ivoidsend(uchardat)SBUF=128+dat;while(!TI);TI=0;/*1602显示主机采集的数据穴/

3、两个单片机通信接收端*/#include#defineuintunsignedint#defineucharunsignedcharsbitlcden=P2A5;sbitlcdrs=P2A7;sbitlcdrw=P2A6;voidwrite_com(ucharcom);voidwrite_dat(uchardat);ucharflag,a=,b,d/e;ucharcodetable=voiddelayms(uintz)uintxzy;for(x=z;x0;x-)for(y=110;y0;y-);voidLCD_init()Icden=0;write_com(0 x38);write_com(0

4、 x0c);write_com(0 x06);write_com(0 x01);voidwrite_com(ucharcom)lcdrs=O;lcdrw=0;P0=com;delayms(5);Icden=l;delayms(5);Icden=0;voidwrite_dat(uchardat)lcdrs=l;lcdrw=0;PO=dat;delayms(5);Icden=l;delayms(5);Icden=0;voidinit()/*设置定时器1方式2*/TMOD=0 x20;TH1=OXFD;/波特率设置为9600bpsTL1=OXFD;TR1=1;REN=1;/串|方式水*5*#*/SM0=0;SM1=1;ES=1;EA=1;PCON=0X80;LCDJnit();voidmain()uchari;init();write_com(0 x80+0 x05);write_dat(a);while(l)for(