Description: Matrix keyboard, some keys control LCD will display relevant data on oled, there is subtraction mode switching and data functions.
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File list (Check if you may need any files):
oled\amjian.c
....\anjian.c
....\anjian.h
....\delay.c
....\delay.h
....\intrins.h
....\main.c
....\OLED.c
....\oled.h
....\oledfont.h
....\REG51.h
....\STARTUP.A51
oled