AT89C51/52单片机模拟SPI总线，驱动1k的EEPROM存储芯片的程序，已经封装好，直接在工程中添加93C46.C文件，并且在主函数中#include 93C46.H-AT89C51/52 chip analog SPI bus, the driver 1k of EEPROM program memory chips, have a good package, add 93C46.C directly in the project file, and in the main funct