Description: Matrix keyboard scanner, using a state machine programming ideas, programming environment keil
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第6章 实现4×4键盘输入\proc\key4x4
......................\....\key4x4.M51
......................\....\key4x4.Opt
......................\....\key4x4.plg
......................\....\key4x4.Uv2
......................\....\main.c
......................\....\main.LST
......................\....\main.OBJ
......................\....\STARTUP.A51
......................\....\STARTUP.lst
......................\....\STARTUP.OBJ
......................\....\Timer.c
......................\....\Timer.LST
......................\....\Timer.OBJ
......................\电路原理图\KB4x4.SchDoc
......................\..........\KB4x4R.SchDoc
......................\proc
......................\电路原理图
第6章 实现4×4键盘输入
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