STM32平台用于IAP下载的程序模板，先编写好Bootloader，后面编写应用程序，应用程序的更新就不再需要使用串口或者仿真器更新程序了。(STM32 platform for IAP downloaded program templates)

从网上下载的STM32 IAP源码和测试代码，已经移值到我自己的板子上，很容易，和大家共享。(Downloaded from the Internet STM32 IAP source and test code, the value has been moved to my own board, it is easy, and share.)