通过Mega16和PB375A芯片，实现U盘的单片机读写功能。包括原理图，PCB，简单实用易懂的源代码。适合初学者参考使用。-By Mega16 and PB375A chip, the microcontroller U disk read and write capabilities. Including schematics, PCB, simple and practical to understand the source code. Suitable for beginners re