It is from the disk of a USB2.0 development board which I bought, it contains a total of five compressed files, more than 10 examples, I believe it is useful for us.

led_key
.......\firmware
.......\........\IO.c
.......\........\IO.h
.......\........\IO.LST
.......\........\IO.OBJ
.......\........\Key.c
.......\........\Key.h
.......\........\Key.LST
.......\........\Key.OBJ
.......\........\Led.c
.......\........\Led.h
.......\........\Led.LST
.......\........\Led.OBJ
.......\........\led_key
.......\........\led_key.c
.......\........\led_key.hex
.......\........\led_key.lnp
.......\........\led_key.LST
.......\........\led_key.M51
.......\........\led_key.OBJ
.......\........\led_key.Opt
.......\........\led_key.plg
.......\........\led_key.Uv2
.......\........\led_key_Opt.Bak
.......\........\led_key_Uv2.Bak
.......\Led显示与键盘扫描.pdf
otimer
......\firmware
......\........\IO.c
......\........\IO.h
......\........\IO.LST
......\........\IO.OBJ
......\........\Key.c
......\........\Key.h
......\........\Key.LST
......\........\Key.OBJ
......\........\Key.__i
......\........\Led.c
......\........\Led.h
......\........\Led.LST
......\........\Led.OBJ
......\........\OTimer.c
......\........\OTimer.h
......\........\OTimer.LST
......\........\OTimer.OBJ
......\........\TimerManage
......\........\TimerManage.c
......\........\TimerManage.hex
......\........\TimerManage.lnp
......\........\TimerManage.LST
......\........\TimerManage.M51
......\........\TimerManage.OBJ
......\........\TimerManage.Opt
......\........\TimerManage.plg
......\........\TimerManage.Uv2
......\........\TimerManage_Opt.Bak
......\........\TimerManage_Uv2.Bak
......\定时器管理.pdf

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