MCU keyboard scanner, 4* 4 keyboard, corresponding to a total of anode 7-segment digital tube output of 0 ~ F, delay using timer interrupt function.

key-scan\key-scan.plg
........\main.c
........\table.h
........\key-scan.M51
........\key-scan.hex
........\key-scan_Uv2.Bak
........\key-scan.Uv2
........\main.LST
........\main.OBJ
........\delay.obj
........\key-scan
........\key-scan_Opt.Bak
........\key-scan.Opt
........\delay.c
key-scan

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