BSP是板级支持包，是介于主板硬件和操作系统之间的一层，应该说是属于操作系统的一部分,主要目的是为了支持操作系统，使之能够更好的运行于硬件主板-BSP is a board-level support package is between the motherboard between the hardware and operating system layer, it should be said is part of the operating system, the main purpo