原理图及运行演示 源代码 #include #include #include #define uchar unsigned char #define uint unsigned int sbit I2C_SCL=P1^7; //I2C时钟引脚 sbit I2C_SDA=P1^6; //I2C数据输入输出引脚 sbit KEY=P2^0; unsigned char ADC_Value;