Arduino的的F实现（）宏 [英] Implementation of Arduino F() macro

问题描述

我想了解在Arduino的的F（）宏实际上PGMEM和RAM做，什么是运行时间的影响。有人能指出我在定义这个宏文件？

I'm trying to understand what the F() macro in Arduino actually does with PGMEM and RAM and what are the runtime implications. Can someone point me at the file that defines this macro?

推荐答案

这可能是一个较旧的版本，但它的定义是一个地方，是 Wstring.h 作为这里。

This may be an older version, but one place where it is defined is Wstring.h as in here.

您可以自己找到它：如果您安装的Arduino可以搜索安装目录。 WString.h 应该在硬件\\ Arduino的\\核心\\ Arduino的\\

You can find it yourself: if you installed Arduino you can search the installation directory. WString.h should be in hardware\arduino\cores\arduino\

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