ST公司 stm32f2xx工程模板及标准库文件，示例代码等-ST stm32f2xx standard template project and library files, sample code, etc.

使用ARM标准C库进行嵌入式应用程序开发-the basic library of ARM for developers and enjoy it

实现类似于C语言标准函数printf()的简单printf打印。主要用于包含UART口的打印输出，代替标准的C库函数，减少对MCU的FLASH的占用，而又不失其基本功能，是在开发MCU时的好帮手。-Simple printf to print to achieve is similar to the C language standard function printf (). Mainly used for the printout contains the UART ports, inste