24c02存储多个数据

24c02存储多个数据24c02存储多个数据#include<reg51.h>#include<intrins.h>#defineuintunsignedint#defineuchar#include<reg51.h>#include<intrins.h>#defineuintunsignedint#defineucharunsignedcharsbitsda=P2^0;//IOsbitscl=P2^1;//此为待写入24c02重复的。charcodemusic[]={0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0};//由于最终还要讲这些数据读出送到P1P1口相连led15ucharuchardatabuffer[100];//24c02delay(delay(unsignedintm){unsignedintn,p;for(n=m;n>0;n--)for(p=125;p>0;p--);}voidvoidnop{_nop_;_nop_;_nop_;_nop_;}/////////24C02读写驱动程序/////////24C02读写驱动程序////////////////////voidvoiddelay1(unsignedintm){unsignedunsignedintn;for(n=0;n<m;n++);}voidvoidinit//24c02初始化子程序{scl=scl=1;nop;sda=1;nop;}voidvoidstart//I2C{sda=1;sda=1;nop;scl=1;nop;sda=0;nop;nop;sclscl=0;nop;}voidvoidstop//I2C{sda=0;nop;sda=0;nop;scl=1;nop;sda=1;nop;}voidvoidwritebyte(unsignedcharj)//写一个字节{unsignedchari,unsignedchari,temp;temp=j;for(i=0;i<8;i++){temp=temp<<1;scl=0;nop;sda=CY;nop;scl=1;nop;//tempCY//sdascl}}scl=0;nop;sda=1;nop;unsignedunsignedcharreadbyte//读一个字节{unsignedchari,j,unsignedchari,j,k=0;scl=0;nop;sda=1;for(i=0;i<8;i++){nop;scl=1;nop;if(sda==1)j=1;elseelsej=0;kj=0;k=(k<<1)|j;scl=0;}nop;return(k);}voidclock{//I2Cunsignedchari=0;scl=1;nop;while((sdawhile((sda==1)&&(i<255))i++;scl=0;nop;}////////从////////从24c02的地址address中读取一个字节数据/////unsignedcharread24c02(unsignedcharaddress){unsignedchari;start;writebyte(0xa0);clock;writebyte(address);clock;start;unsignedchari;start;writebyte(0xa0);clock;writebyte(address);clock;start;writebyte(0xa1);clock;i=readbyte;stop;delay1(100);return(i);}//////向//////向24c02的address地址中写入一字节数据info/////voidwrite24c02(unsignedcharaddress,unsignedcharinfo){start;writebyte(0xa0);clock;start;writebyte(0xa0);clock;writebyte(address);writebyte(address);clock;writebyte(info);clock;stop;clock;writebyte(info);clock;stop;delay1(5000);//这个延时肯定要足够长，否则会出错。由于24c02在从sda上取得数据后，还需要肯定时间的烧录过程。}voidvoidmain{ucharadd,i,j,m;init;P1=0X55;while(add!=//24C02sizeof(music)){write24c02(0x00+add,write24c02(0x00+add,music[add]);add++;if(add%4==0)P1=~P1;}P1=0X00;//到此为止，向//到此为止，向24C02中写入数据的过程均已完毕。下面的程序为附加的。//P1led的亮灭来检验写入的数据是否正确。while为附加的。//P1led的亮灭