利用TMS320F2812的硬件SPI操作AT45DB161D的驱动函数，利用此文件中的函数可以基本满足对AT45DB161D的使用。此文件包含硬件SPI的初始化函数以及简单的测试函数，方便大家调试。-Use hardware SPI operation TMS320F2812 AT45DB161D driver function, use this file functions can basically meet the use of AT45DB161D. Initialization function and a simple test functions This file contains the hardware SPI, and to facilitate debugging.