本资料可以用于430G2553单机通信实验的练习，iic通信模拟方式以及硬件方式进行，可以与芯片进行通信。-This information can be used in stand-alone communication experiment 51 exercises, iic communication analog manner, you can communicate with the chip.

VB与串行通信编程实例：单片机采用了51单片机，多机通信中采用了利SM2来区分是数据还是地址，效果还可以。其中RS485部分采用了隔离转换电路，采用高速光耦6N137-VB and serial communication programming examples: single-chip microcontroller with a 51, multi-machine communication using Lee SM2 to distinguish the data or address,