File list (Check if you may need any files):
ppp-ok
......\Base.ASM
......\Base.LST
......\Base.OBJ
......\Bell.c
......\Bell.h
......\Bell.LST
......\Bell.OBJ
......\Command.h
......\Finger.c
......\Finger.h
......\Finger.LST
......\Finger.OBJ
......\Include.h
......\Key.c
......\Key.h
......\Key.LST
......\Key.OBJ
......\Led.c
......\Led.h
......\Led.LST
......\Led.OBJ
......\main.c
......\main.LST
......\main.OBJ
......\Module.c
......\Module.h
......\Module.LST
......\Module.OBJ
......\motor.c
......\motor.h
......\motor.LST
......\motor.OBJ
......\ppp.hex
......\ppp.lnp
......\ppp.M51
......\ppp.Opt
......\ppp.plg
......\ppp.Uv2
......\ppp_Opt.Bak
......\ppp_Uv2.Bak
......\sn.txt
......\sound.c
......\sound.h
......\sound.LST
......\sound.OBJ
......\STARTUP.A51
......\STARTUP.LST
......\STARTUP.OBJ
......\Timer.c
......\Timer.h
......\Timer.LST
......\Timer.OBJ
......\UART.c
......\UART.h
......\UART.LST
......\UART.OBJ