File list (Check if you may need any files):
STC12C2052AD\STARTUP.OBJ
............\STC12C2052AD_Opt.Bak
............\STARTUP.A51
............\STC12C2052AD.LST
............\STC12C2052AD.C
............\STC12C2052AD
............\STARTUP.LST
............\STC12C2052AD.lnp
............\STC12C2052AD.M51
............\STC12C2052AD.Opt
............\STC12C2052AD_Uv2.Bak
............\STC12C5021.C
............\STC12C2052AD.OBJ
............\STC12C2052AD.Uv2
............\STC12C5021.LST
............\STC12C5021.OBJ
............\STC12C2052AD.hex
STC12C2052AD
............\STC12C2052AD.plg