Application support: Package source and binary emulation 应用程序支持:打包源文件和二进制模拟
It is specific designed for the application of embedded system, it include the BSP ( Board Support Package) and operating kernel and user selected component and ISR ( interrupt service routine). 它由板级支持包(BSP)、操作系统内核及用户选用组件、中断服务程序(ISR)绢成。