A solution 5 IO port scan button 25 solution, a complete package, a reference value, C51.

keyscan
.......\EX_Support.c
.......\EX_Support.dp2
.......\EX_Support.h
.......\EX_Support.lis
.......\EX_Support.o
.......\EX_Support.s
.......\EX_Support._c
.......\EX_Support._h
.......\HD_Support.c
.......\HD_Support.dp2
.......\HD_Support.h
.......\HD_Support.lis
.......\HD_Support.o
.......\HD_Support.s
.......\HD_Support._c
.......\HD_Support._h
.......\hex
.......\...\EX_Support.dp2
.......\...\EX_Support.lis
.......\...\EX_Support.o
.......\...\EX_Support.s
.......\...\HD_Support.dp2
.......\...\HD_Support.lis
.......\...\HD_Support.o
.......\...\HD_Support.s
.......\...\KEYSCAN.cof
.......\...\KEYSCAN.dbg
.......\...\KEYSCAN.hex
.......\...\KEYSCAN.lk
.......\...\KEYSCAN.lst
.......\...\KEYSCAN.mak
.......\...\KEYSCAN.mp
.......\...\PF_Config.dp2
.......\...\PF_Config.lis
.......\...\PF_Config.o
.......\...\PF_Config.s
.......\...\System.dp2
.......\...\System.lis
.......\...\System.o
.......\...\System.s
.......\KEYSCAN.cof
.......\KEYSCAN.dbg
.......\KEYSCAN.hex
.......\KEYSCAN.lk
.......\KEYSCAN.lst
.......\KEYSCAN.mak
.......\KEYSCAN.mp
.......\KeyScan.prj
.......\KeyScan.SRC
.......\LIB_Config.h
.......\PF_Config.c
.......\PF_Config.dp2
.......\PF_Config.h
.......\PF_Config.lis
.......\PF_Config.o
.......\PF_Config.s
.......\PF_Config._h
.......\RD_MacroAndConst.h
.......\RD_UseAVRPortBit.h
.......\RD_UseBITs.h
.......\System.c
.......\System.dp2
.......\System.lis
.......\System.o
.......\System.s
.......\System._c
.......\硬件说明.txt
.......\硬件说明._tx

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