强大的高精度国产实时时钟芯片2400读写程序，自己花一天实践编写的，适用51单片机-Made a strong high-precision real time clock chip 2400 to read and write procedures for the preparation of his practice to spend a day, and for 51 MCU

本程序是AVR系统单片机，读写精密实时时钟芯片SD2404FLPI的时间寄存器的程序-This procedure is AVR, microcontroller, reading and writing precision real time clock chip SD2404FLPI time the procedure register

SD2400开发资料，有详细的说明，希望对开发者有用-SD2400 development information, a detailed descr iption of hope be useful for developers