i2c_host.c

Ｃ５１单片机模拟Ｉ２Ｃ双机通信协议

#include"stdafx.h"
#include"I2C_fun.h"
#include"t6963.h"

sbit P10=P1^0;
sbit P11=P1^1;
sbit P12=P1^2;

unsigned long ct0,ct1;

void main(void)
	{
	unsigned char a,b,c,d,e,f;
	//I_init();

	unsigned long temp0,temp1;
	ct0=ct1=0;
	LCMInit();
	LCMClear();
	P10=1;
	P11=1;
	P12=1;
	TMOD =0x11;
	TL0=TH0=0;
	TL1=TH1=0;
	ET1=ET0=1;
	EA=1;
	Start:
	I_start();

	if(I_send(0x5f)){
		TR1=1;
		a=I_receive();
	   	I_Ack();
		TR1=0;
		temp1=TH1;
		temp1=temp1*256+TL1+ct1*0xffff;
		b=I_receive();
		I_NoAck();
		I_stop();	

		}
	else goto Start;
	if(a==5) P10=0;
	if(b==8) P11=0;
	I_start();
	a=I_send(0x5e);
	P12=a;
	if(a)
		{
	 	TR0=1;
		 I_send(0x09);
		 TR0=0;
		temp0=TH0;
		temp0=temp0*256+TL0+ct0*0xffff;

		 //I_clock();
		 I_stop();

		}

	a=temp0%10;
	b=(temp0/10)%10;
	c=(temp0/100)%10;
	d=(temp0/1000)%10;
	e=(temp0/10000)%10;
	f=(temp0/100000);
	DisplayOneChar(0,0,f|0x30);
	DisplayOneChar(1,0,e|0x30);
	DisplayOneChar(2,0,d|0x30);
	DisplayOneChar(3,0,c|0x30);
	DisplayOneChar(4,0,b|0x30);
	DisplayOneChar(5,0,a|0x30);

	a=temp1%10;
	b=temp1/10%10;
	c=temp1/100%10;
	d=temp1/1000%10;
	e=temp1/10000%10;
	f=temp1/100000 ;
	DisplayOneChar(0,1,f|0x30);
	DisplayOneChar(1,1,e|0x30);
	DisplayOneChar(2,1,d|0x30);
	DisplayOneChar(3,1,c|0x30);
	DisplayOneChar(4,1,b|0x30);
	DisplayOneChar(5,1,a|0x30);
	while(1);	
	}

void t0(void) interrupt 1
	{
	ct0++;
	TR0=1;
	}

void t1(void) interrupt 3
	{
	ct1++;
	TR1=1;
	}