Introduction - If you have any usage issues, please Google them yourself
PCF8563 clock chip C language application examples, which I successfully used before.
Packet : 53607920pcf8563(c).rar filelist
pcf8563(c)\Debug
pcf8563(c)\pcf8563.aws
pcf8563(c)\pcf8563.c
pcf8563(c)\pcf8563.h
pcf8563(c)\pcf8563TWI.c
pcf8563(c)\pcf8563TWI.h
pcf8563(c)\Version.v
pcf8563(c)