File list (Check if you may need any files):
DA_test
.......\DAC.LST
.......\DAC.Uv2.bak
.......\DAC.c
.......\DAC.h
.......\DAC.m51
.......\DAC.opt.bak
.......\DAC.plg
.......\DAC.uvgui.lfp
.......\DAC.uvopt
.......\DAC.uvproj
.......\DAC_Opt.Bak
.......\DAC_Uv2.Bak
.......\Delay.LST
.......\Delay.c
.......\Delay.h
.......\LCD.LST
.......\LCD.c
.......\Uart.LST
.......\Uart.c
.......\Uart.h
.......\c8051F020.h
.......\common.h
.......\cons.h
.......\flash.c
.......\flash.h
.......\key.LST
.......\key.c
.......\key.h
.......\lcd.h
.......\main.LST
.......\main.c
.......\output
.......\......\DAC
.......\......\DAC.hex
.......\......\DAC.lnp
.......\......\DAC.obj
.......\......\DAC.plg
.......\......\Delay.obj
.......\......\ExtDll.iex
.......\......\LCD.obj
.......\......\Uart.obj
.......\......\key.obj
.......\......\main.obj