Using c language to design a keyboard program with matrix of 4 dimensions on the avr platform

4x4键盘\4X4KEY.cof
.......\4X4KEY.dbg
.......\4X4KEY.hex
.......\4X4KEY.lk
.......\4X4KEY.lst
.......\4X4KEY.mak
.......\4X4KEY.mp
.......\4x4key.prj
.......\4X4KEY.SRC
.......\4x4key_main.c
.......\4x4key_main.dp2
.......\4x4key_main.lis
.......\4x4key_main.o
.......\4x4key_main.s
.......\4x4key_main._c
.......\ch595.h
.......\ch595._h
.......\disp.h
.......\disp._h
.......\encoder.h
.......\key_value.h
.......\key_value._h
4x4键盘

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