51+SD+ZNFAT 读取SD 卡信息 -This program is mainly on 51 MCU, realize the serial port read the function of Zn fat file. Hope can be shared to learn together.

本程序是在sd卡读取的基础上，修改为读取sdhc卡+znfat，运行环境为51开发板，希望和大家分享，一起学习。-This program is based on SD card read, modified to read sdhc card+ Zn, operating environment 51 development board, hope to share and learn together.