C语言版的USB单片机固件源代码，实现U盘的存储功能。包括了USB的常用协议栈-C language version of the USB MCU firmware source code, achieving U disk storage capacity. Including a common USB protocol stack

程序员面试宝典：本书不仅对传统的C系语言考点做了详尽解说，还根据外企出题最新特点，新增加了对友元、Static、图形/音频、树、栈、ERP等问题的深入讲解。-This book is not only the traditional C language test to do a detailed explanation, according to the latest foreign title, added to the new friends, Static, graphics/audio

Ethercat协议栈代码示例,基于C语言，已经调试通过(The example for Ethercat slave protocol)