FX2N源码V3.8版的使用基本说明：
编译语言：C语言
　FX2N源码V3.8版是根据三菱FX2N的PLC通信协议、通信命令以及基于STM32F103系列单片机上编写运行的程序，可以直接利用三菱编程软件编写梯形图下载运行，无需任何转换。
　注：1）目前在STM32F103RD/STM32F103VC/STM32F103VD/STM32F103VE/STM32F103ZE测试通过；
　　　2）本程序不完全支持所有梯形图指令，如果需要其他的功能，需要亲自己修改代码，
编译环境：Keil 4或者Keil5(FX2N source code V3.8 version of the basic use of:
Compiled language: C language
The FX2N source code V3.8 version is based on MITSUBISHI FX2N's PLC communication protocol, communication command and program written on the STM32F103 Series MCU. It can directly use MITSUBISHI programming software to write ladder diagram to download and run without any transformation.
Note: 1) at present, the STM32F103RD/STM32F103VC/STM32F103VD/STM32F103VE/STM32F103ZE test is passed.
2) this program does not fully support all ladder diagram instructions. If you need other functions, you need to modify the code by yourself.
Compile environment: Keil 4 or Keil5)