1, do not use an external clock chip 2, adjust the time and date 3, using AT89C51 internal RTC (real-time clock, 12MHz) 4, that the use of LCD1620 5, only four buttons set a, reset button b, the adjustment mode selection button, switch to adjust different parameters c, raised buttons, adjusting the model to adjust the value of this key has been raised d, down button to adjust mode to adjust the value of this bond was reduced. 6, the use of compiler Keil51 7, with PROTEUS simulation map

wannianli
.........\Last Loaded wnl.DBK
.........\STARTUP.A51
.........\STARTUP.LST
.........\STARTUP.OBJ
.........\wnl
.........\wnl.c
.........\wnl.dsn
.........\wnl.hex
.........\wnl.lnp
.........\wnl.LST
.........\wnl.M51
.........\wnl.OBJ
.........\wnl.Opt
.........\wnl.plg
.........\wnl.PWI
.........\wnl.Uv2
.........\wnl_Opt.Bak
.........\wnl_Uv2.Bak

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