Proteus仿真单片机I2C串行总线

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1、单片机I2C串行总线的应用20112Proteus仿真单片机IC串行总线目录一、电路图.......................................................................................................................................2二、源程序代码与注释......................................................................

2、.............................................32.1Main.C文件.....................................................................................................................32.224C04.C文件........................................................................

3、..........................................32三、IC串行总线简介....................................................................................................................52四、IC总线工作原理.............................................................................

4、.......................................7五、使用Keil编写和编译C语言源代码.....................................................................................8六、Proteus仿真单片机电路..................................................................................................

5、......15七、Proteus常用器件中英文对照................................................................................................17一、电路图图1-1二、源程序代码与注释2本例通过IC串行总线协议，单片机向24C04的0x00到0x07地址分别写入8~F。由Main.C和24C04.C两个文件构成。2.1Main.C文件#include#include#def

6、ineuintunsignedint#defineucharunsignedcharvoidWrite_I2C(ucharaddr,uchardat);voidDelayMS(uintms)//延时{uchari;while(ms--){for(i=0;i<120;i++);}}voidmain(){Write_I2C(0x00,8);//向24C04的0x00写入8Write_I2C(0x01,9);//向24C04的0x01写入9Write_I2C(0x02,0x0a);//向24C04的0x02写入aWri

7、te_I2C(0x03,0x0b);//向24C04的0x03写入bWrite_I2C(0x04,0x0c);//向24C04的0x04写入cWrite_I2C(0x05,0x0d);//向24C04的0x05写入dWrite_I2C(0x06,0x0e);//向24C04的0x06写入eWrite_I2C(0x07,0x0f);//向24C04的0x07写入f}2.224C04.C文件#include#include#defineuintunsignedint#defin

8、eucharunsignedchar#defineNOP4(){_nop_();nop_();nop_();nop_();}sbitSCL=P1^0;sbitSDA=P1^1;voidDelayMS(uintms);voidStart()//I2C开始,SCL线为高电平期间，SDA线由高电平向低电平的变化表示起始信号{SDA=1;SCL=1;NOP4();SDA=0;NO