Based 80C51F120 timers and power-down storage procedures can be used directly, very practical.

计时器+掉电存储\common.c
...............\common.LST
...............\common.OBJ
...............\DECLARE.H
...............\ExtDll.iex
...............\key.c
...............\key.LST
...............\key.OBJ
...............\lcd.c
...............\lcd.LST
...............\lcd.OBJ
...............\poweroff.c
...............\poweroff.LST
...............\poweroff.OBJ
...............\STARTUP.A51
...............\STARTUP.LST
...............\STARTUP.OBJ
...............\timer
...............\timer.c
...............\timer.hex
...............\timer.lnp
...............\timer.LST
...............\timer.MAP
...............\timer.OBJ
...............\timer.plg
...............\timer.SBR
...............\timer.uvopt
...............\timer.uvproj
...............\timer_uvopt.bak
...............\timer_uvproj.bak
计时器+掉电存储

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