本程序是精密实时时钟芯片sd2404FLPI的时间寄存器的读写程序-This procedure is a precision real time clock chip time to register read and write sd2404FLPI procedures

sd2404时钟基于单片机的开发，可以借鉴里面的协议通信机制-sd2404 clock microcontroller-based development, can learn from the protocol communication mechanism which