51读写串行EEPROM芯片at2402程序（C）

          acktemp=Check_Acknowledge();
          for(i=0;i<7;i++)
          {
            WriteI2CByte(buffer[i]);
            if(!Check_Acknowledge())
                {
                    I2C_Stop();

                }
           }

          I2C_Stop();

}

char Read_One_Byte(char addr)
{         bit acktemp=1;
          char mydata;
           /*read a byte from mem*/
          I2C_Start();
          WriteI2CByte(0xa0);
          acktemp=Check_Acknowledge();
          WriteI2CByte(addr);/*address*/
          acktemp=Check_Acknowledge();
          I2C_Start();
          WriteI2CByte(0xa1);
          acktemp=Check_Acknowledge();

          mydata=ReadI2CByte();
          acktemp=Check_Acknowledge();

          return mydata;
          I2C_Stop();
}

void Read_N_Bytes(char *buffer,char n,char addr)
{
          bit acktemp=1;

          int i=0;
           /*read 8 bytes from mem*/
          I2C_Start();
          WriteI2CByte(0xa0);
          acktemp=Check_Acknowledge();
          WriteI2CByte(addr);/*address*/
          acktemp=Check_Acknowledge();
          I2C_Start();
          WriteI2CByte(0xa1);

          acktemp=Check_Acknowledge();

          for(i=0;i          {
                buffer[i]=ReadI2CByte();
                if(i!=n-1)
                    SEND_0();    /*发送应答*/
                else
                    SEND_1();    /*发送非应答*/
          }

   I2C_Stop();

}

void main()
{
          int i;
          char mybyte;
          char myarray[8];
          char myarray2[8];
          char rdarray[16];
          
          for(i=0;i<8;i++)
          {
                myarray[i]=i;
                myarray2[i]=i+0x08;     

          }

          Write_One_Byte(0x20,0x28);

          Write_A_Page(myarray,0x10);
          Write_A_Page(myarray2,0x18);

          mybyte=Read_One_Byte(0x20);
          Read_N_Bytes(rdarray,16,0x10);

}

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