Based on proteus and C51 multimeter simulation, including source code.

FW\AC_V0L.C
..\AC_V0L.LST
..\AC_V0L.OBJ
..\AC_V0L_define.h
..\AD.c
..\AD.h
..\AD.LST
..\AD.OBJ
..\Cap.c
..\Cap.LST
..\Cap.OBJ
..\Cap_define.h
..\circuit.c
..\circuit.LST
..\circuit.OBJ
..\DC_VOL.C
..\DC_VOL.LST
..\DC_VOL.OBJ
..\Delay.c
..\Delay.h
..\Delay.LST
..\Delay.OBJ
..\Int1.c
..\Int1.LST
..\Int1.OBJ
..\key_function.c
..\key_function.LST
..\key_function.OBJ
..\key_function_define.h
..\LCD.c
..\LCD.h
..\LCD.LST
..\LCD.OBJ
..\Main.c
..\Main.LST
..\Main.OBJ
..\measure_define.h
..\Res.c
..\Res.LST
..\Res.OBJ
..\volat
..\volat.hex
..\volat.lnp
..\volat.M51
..\volat.plg
..\volat.uvgui.Gavin
..\volat.uvopt
..\volat.uvproj
..\volat_uvopt.bak
..\volat_uvproj.bak
Sim\Last Loaded Meter.DBK
...\Meter.DSN
...\Meter.hex
...\Meter.PWI
FW
Sim

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