实现80c51系列单片机IIC芯片的读写，本例给出了51对24c16的读写，同时也可读写其他iic器件，开发环境为Keil C-80c51 MCU IIC to achieve the reading and writing chip, which in this case is given 51 pairs of reading and writing 24c16, but also can read and write iic other devices, development envir