用I2C通信实现点亮一盏小灯（包含应答）---c语言

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/*用I2C通信实现点亮一盏小灯*/#include<reg52.h>#define uchar unsigned charsbit scl = P3^7;sbit sda = P3^6;sbit ADDR0=P1^0;sbit ADDR1=P1^1;sbit ADDR2=P1^2;sbit ENLED1=P1^4;sbit ENLED2=P1^3;uchar a;void delay(){ ;; }void start()  //开始信号{sda=1;delay();scl=1;delay();sda=0;delay();}void stop()   //停止{sda=0;delay();scl=1;delay();sda=1;delay();}void respons()  //应答{uchar i;scl=1;delay();while((sda==1)&&(i<250))i++;        //收到应答SDA=0 或超过时间就不等待了scl=0;delay();}void init(){sda=1;delay();scl=1;delay();}void write_byte(uchar date){uchar i,temp;temp=date;for(i=0;i<8;i++){temp=temp<<1;scl=0;    delay();sda=CY;delay();scl=1;delay();//scl=0;     //   delay();}scl=0;delay();sda=1;delay();}uchar read_byte(){uchar i,k;scl=0;delay();sda=1;delay();for(i=0;i<8;i++){scl=1;delay();k=(k<<1)|sda;scl=0;delay();}return k;}void delay1(uchar x){uchar a,b;for(a=x;a>0;a--) for(b=100;b>0;b--);}void write_add(uchar address,uchar date){start();write_byte(0xa0);respons();write_byte(address);respons();write_byte(date);respons();stop();}uchar read_add(uchar address){uchar date;start();write_byte(0xa0);respons();write_byte(address);respons();start();write_byte(0xa1);respons();date=read_byte();stop();return date;}void main(){ENLED1=0;    ENLED2=1;ADDR0=0;ADDR1=1;ADDR2=1;init();write_add(23,0x01);delay1(100);P0=read_add(23);P0=~P0;while(1);}有问题希望大家可以留言，谢谢