init.c

完全按照645协议编写的RS485通讯程序 （REG764单片机）

#include "Config.h"
#include "ZI.h"

sbit CTRL485 = P1^7;

void Delay(uchar i);

void Init_MCU()
{
	P1M1 &= 0x7e;
    P1M2 |= 0x81;
    P1M1 |= 0x02;
    P1M2 &= 0xfd;
	//Delay(100);

    CTRL485 = 1;

    PCON &= 0xc0;
	TMOD = 0x20;
	TL1 = 0x52;
	TH1 = 0x52;
	SCON = 0x60;
    
	REN = 1;
}