File list (Check if you may need any files):
ucos-ii
.......\config
.......\......\c8051F020.h
.......\......\common.h
.......\......\Config.h
.......\......\Const.h
.......\......\keil.h
.......\driver
.......\......\Delay.c
.......\......\Delay.h
.......\......\driver.h
.......\......\Key.c
.......\......\key.h
.......\......\lcd.c
.......\......\lcd.h
.......\......\serial.c
.......\......\serial.h
.......\......\Uart.c
.......\......\Uart.h
.......\output
.......\......\Delay.lst
.......\......\Delay.obj
.......\......\fun_a.obj
.......\......\fun_b.obj
.......\......\Key.lst
.......\......\Key.obj
.......\......\lcd.lst
.......\......\lcd.obj
.......\......\main.lst
.......\......\main.obj
.......\......\OS_CPU_A.lst
.......\......\OS_CPU_A.obj
.......\......\OS_CPU_C.lst
.......\......\OS_CPU_C.obj
.......\......\STARTUP.obj
.......\......\Uart.lst
.......\......\Uart.obj
.......\......\ucos-ii
.......\......\ucos-ii.hex
.......\......\ucos-ii.lnp
.......\......\ucos-ii.m51
.......\......\ucos-ii.plg
.......\......\UCOS_II.lst
.......\......\UCOS_II.obj
.......\source
.......\......\allfun.h
.......\......\c8051f020.h
.......\......\fun_a.c
.......\......\fun_a.h
.......\......\fun_b.c
.......\......\fun_b.h
.......\......\main.c
.......\......\main.h
.......\......\os.h
.......\ucos-ii
.......\.......\INCLUDES.H
.......\.......\OS_CFG.H
.......\.......\OS_CORE.C
.......\.......\OS_CPU.H
.......\.......\OS_CPU_A.ASM
.......\.......\OS_CPU_C.C
.......\.......\OS_MBOX.C
.......\.......\OS_MEM.C
.......\.......\OS_Q.C
.......\.......\OS_SEM.C
.......\.......\OS_TASK.C
.......\.......\OS_TIME.C
.......\.......\UCOS_II.C
.......\.......\UCOS_II.H
.......\ucos-ii.Opt
.......\ucos-ii.Uv2
.......\ucos-ii_Opt.Bak
.......\ucos-ii_Uv2.Bak