在编译时构建版本控制闪存中有什么东西可以参考吗

我想把一些类型的参考代码我编程版板，这样我就可以很容易地分辨什么是在现场生产。我现在只是硬编码这与变量如int版本= 2；有东西在闪光我可以参考，会有一些基于构建独特？



     以下为原文
  I would like to store some type of reference to the version of code im programming to boards so I can easily tell what is out in the field in production.  I am currently just hardcoding this in with a variable like int version = 2;  Is there something in the flash I can reference that would have something unique based on the build?