该程序实现了对cortex-M3处理平台的SD卡读取功能的支持，包括显示盘符，初始化及数据读写功能，该软件的开发环境为keil c 2.0-Cortex-M3 processor uses the ARMv7-M architecture, with powerful computing and extensions, the program support the SD card reader function of the cort

用fpga将存储在sd卡中存储的矩阵读取并显示(Read and display the matrix stored in the SD card by FPGA)