Watchdog debugging, it is very useful for beginners. I had used before, to share

keypad\keypad.uvopt
......\keypad_uvproj.bak
......\keypad.uvproj
......\keypad_uvopt.bak
......\src\main.c
......\...\8052Hal.c
......\...\8052Hal.h
......\...\STARTUP.a
......\...\sysconf.h
......\...\typedef.h
......\...\8052Asm.a
......\...\keypad.c
......\...\keypad.h
......\...\uartio.c
......\...\uartio.h
......\dsn\Sch-PCB\矩阵键盘\history\MatrixKey.~(1).SchDoc.Zip
......\...\.......\........\matrixkey.dsnwrk
......\...\.......\........\MatrixKey.PrjPCB
......\...\.......\........\MatrixKey.SchDocPreview
......\...\.......\........\MatrixKey.SchDoc
......\...\Proteus\keypad.PWI
......\...\.......\Last Loaded keypad.DBK
......\...\.......\keypad.DSN
......\...\实验数据\P310311_18.24_[01].jpg
......\...\........\P310311_18.24.jpg
......\...\........\矩阵键盘演示.jpg
......\...\........\Thumbs.db
......\.oc\用状态机实现键盘消抖.doc
......\...\逐行扫描矩阵键盘.png
......\...\逐行扫描矩阵键盘.pdf
......\...\逐行扫描矩阵键盘.jpg
......\out\keypad.hex
......\说明.txt
......\dsn\Sch-PCB\矩阵键盘\history
......\...\.......\矩阵键盘
......\...\Sch-PCB
......\...\Proteus
......\...\KeilSim
......\...\实验数据
......\src
......\dsn
......\doc
......\out
keypad

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