ZLG7290 keyboard driver. Press the button, serial debugging aides in the type b, appear in the window corresponding to the numerical keys. Than the official procedures have a chip initialization code.

ZLG7290
.......\I2C.c
.......\I2C.h
.......\I2C.LST
.......\I2C.OBJ
.......\STC89C51RCRD.h
.......\ZLG7290.c
.......\ZLG7290.h
.......\ZLG7290.LST
.......\ZLG7290.OBJ
.......\ZLG7290.__i
.......\ZLG7290Demo
.......\ZLG7290Demo.c
.......\ZLG7290Demo.hex
.......\ZLG7290Demo.lnp
.......\ZLG7290Demo.LST
.......\ZLG7290Demo.M51
.......\ZLG7290Demo.OBJ
.......\ZLG7290Demo.Opt
.......\ZLG7290Demo.plg
.......\ZLG7290Demo.Uv2
.......\ZLG7290Demo_Opt.Bak
.......\ZLG7290Demo_Uv2.Bak

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