#include <STDIO.H> #include <reg51.h> #include <intrins.h>
typedef unsigned char U8; typedef signed char S8; typedef unsigned int U16; typedef signed int S16; typedef unsigned long U32; typedef signed long S32; typedef float F32; typedef double F64;
#define uchar unsigned char #define uint unsigned int #define Data_0_time 4
sbit TXP = P2^0 ;
U8 U8FLAG,k; U8 U8count,U8temp; U8 U8T_data_H,U8T_data_L,U8RH_data_H,U8RH_data_L,U8checkdata; U8 U8T_data_H_temp,U8T_data_L_temp,U8RH_data_H_temp,U8RH_data_L_temp,U8checkdata_temp; U8 U8comdata; U8 outdata[5]; U8 indata[5]; U8 count, count_r=0; U8 str[5]= {"RS232"}; U16 U16temp1,U16temp2; void SendData(U8 *a) { outdata[0] = a[0]; outdata[1] = a[1]; outdata[2] = a[2]; outdata[3] = a[3]; outdata[4] = a[4]; count = 1; SBUF=outdata[0]; }
void Delay(U16 j) { U8 i; for(; j>0; j--) { for(i=0; i<27; i++);
} } void Delay_10us(void) { U8 i; i--; i--; i--; i--; i--; i--; }
void COM(void) {
U8 i;
for(i=0; i<8; i++) {
U8FLAG=2; while((!TXP)&&U8FLAG++); Delay_10us(); Delay_10us(); Delay_10us(); U8temp=0; if(TXP) U8temp=1; U8FLAG=2; while((TXP)&&U8FLAG++); if(U8FLAG==1) break;
U8comdata<<=1; U8comdata|=U8temp; }
}
void RH(void) { TXP=0; Delay(180); TXP=1; Delay_10us(); Delay_10us(); Delay_10us(); Delay_10us(); TXP=1; if(!TXP) { U8FLAG=2; while((!TXP)&&U8FLAG++); U8FLAG=2; while((TXP)&&U8FLAG++); COM(); U8RH_data_H_temp=U8comdata; COM(); U8RH_data_L_temp=U8comdata; COM(); U8T_data_H_temp=U8comdata; COM(); U8T_data_L_temp=U8comdata; COM(); U8checkdata_temp=U8comdata; TXP=1;
U8temp=(U8T_data_H_temp+U8T_data_L_temp+U8RH_data_H_temp+U8RH_data_L_temp); if(U8temp==U8checkdata_temp) { U8RH_data_H=U8RH_data_H_temp; U8RH_data_L=U8RH_data_L_temp; U8T_data_H=U8T_data_H_temp; U8T_data_L=U8T_data_L_temp; U8checkdata=U8checkdata_temp; } }
}
void main() { U8 i=0,j=0;
TMOD = 0x20; TH1 = 253; TL1 = 253; TR1 = 1; SCON = 0x50; ES = 1; EA = 1; TI = 0; RI = 0; SendData(str) ; while(1) {
RH();
str[0]=U8RH_data_H; str[1]=U8RH_data_L; str[2]=U8T_data_H; str[3]=U8T_data_L; str[4]=U8checkdata; SendData(str) ; Delay(20000); }
}
void RSINTR() interrupt 4 using 2 { U8 InPut3; if(TI==1) { TI=0; if(count!=5) { SBUF= outdata[count]; count++; } }
if(RI==1) { InPut3=SBUF; indata[count_r]=InPut3; count_r++; RI=0; if (count_r==5) { count_r=0; str[0]=indata[0]; str[1]=indata[1]; str[2]=indata[2]; str[3]=indata[3]; str[4]=indata[4]; P0=0; } } }
|