File list (Check if you may need any files):
PCAtimer\list\HCSR04.lst
........\....\IIC.lst
........\....\IRsensor.lst
........\....\main.lst
........\....\main.m51
........\....\STARTUP.lst
........\....\tea5767.lst
........\....\uart.lst
........\output\HCSR04.obj
........\......\IIC.obj
........\......\IRsensor.obj
........\......\main
........\......\main.hex
........\......\main.lnp
........\......\main.obj
........\......\main.plg
........\......\STARTUP.obj
........\......\tea5767.obj
........\......\tea5767.__i
........\......\uart.obj
........\project\main
........\.......\main.lnp
........\.......\main.lst
........\.......\main.M51
........\.......\main.obj
........\.......\main.plg
........\.......\main.uvgui.Administrator
........\.......\main.uvgui.song
........\.......\main.uvgui_Administrator.bak
........\.......\main.uvgui_song.bak
........\.......\main.uvopt
........\.......\main.uvproj
........\.......\main_uvopt.bak
........\.......\main_uvproj.bak
........\.......\STARTUP.A51
........\.......\STARTUP.LST
........\.......\STARTUP.OBJ
........\user\HCSR04.c
........\....\hcsr04.h
........\....\hcsr04.rar
........\....\IRsensor.c
........\....\irsensor.h
........\....\main.c
........\....\STC5A60S2.H
........\....\uart.c
........\....\uart.h
........\list
........\output
........\project
........\user
PCAtimer