Description: This procedure is mainly based on PCF8563, the clock control to achieve the 8563, you can set the system clock and read the system clock
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File list (Check if you may need any files):
PCF_8563_Clock\i2c.c
..............\i2c.h
..............\PCF8563.c
..............\PCF8563.h
PCF_8563_Clock
zxur.txt