Introduction - If you have any usage issues, please Google them yourself
multiple real-time clock chip to read and write applications, using controller for the MCS-51 microcontroller series
Packet : 412522实时时钟应用程序.rar filelist
实时时钟应用程序\PCF8563.c
实时时钟应用程序\12887.c
实时时钟应用程序\高精度实时时钟-SD2001驱动程序.c
实时时钟应用程序