File list (Check if you may need any files):
DS3231_I2C\Bien.h
..........\Delay.c
..........\Delay.LST
..........\Delay.OBJ
..........\DS3231
..........\DS3231.hex
..........\DS3231.lnp
..........\DS3231.LST
..........\DS3231.M51
..........\DS3231.OBJ
..........\DS3231.Opt
..........\DS3231.plg
..........\DS3231.Uv2
..........\DS3231_I2C.c
..........\DS3231_I2C.LST
..........\DS3231_I2C.OBJ
..........\DS3231_Opt.Bak
..........\DS3231_Uv2.Bak
..........\header.h
..........\Main.c
..........\Main.LST
..........\Main.OBJ
..........\REG51RC2.h
..........\SYS_INIT
..........\SYS_INIT.c
..........\SYS_INIT.LST
..........\SYS_INIT.OBJ
..........\UART.c
..........\UART.LST
..........\UART.OBJ
DS3231_I2C