Real-time clock-based microcontroller 89C52 1302, but the power-down when time stops, power on again, time after power-down time.

实时时钟\Last Loaded timep.DBK
........\LCD.txt
........\STARTUP.A51
........\STARTUP.LST
........\STARTUP.OBJ
........\temp.lst
........\TEMP.Opt
........\TEMP.plg
........\TEMP.Uv2
........\TEMP_Opt.Bak
........\TEMP_Uv2.Bak
........\TIME
........\TIME.c
........\TIME.hex
........\TIME.lnp
........\TIME.M51
........\TIME.Opt
........\TIME.plg
........\TIME.Uv2
........\time2.c
........\time2.LST
........\time2.OBJ
........\timep.DSN
........\timep.PWI
........\TIME_Opt.Bak
........\TIME_Uv2.Bak
........\实时时钟.txt
........\时钟显示.txt
........\查看的资料.doc
实时时钟

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