File list (Check if you may need any files):
AT89s52+RC500_source code
..........................\AT89S52.H
..........................\HY500
..........................\HY500.lnp
..........................\HY500.M51
..........................\HY500.Opt
..........................\HY500.plg
..........................\HY500.Uv2
..........................\HY500LCD
..........................\HY500LCD.lnp
..........................\HY500LCD.M51
..........................\HY500LCD.plg
..........................\hyRC500.Opt
..........................\KEIL.DSK
..........................\KEIL.PRJ
..........................\m500a.h
..........................\main.c
..........................\main.c.bak
..........................\main.h
..........................\main.LST
..........................\main.OBJ
..........................\Mfreg500.h
..........................\RC500 DEMO
..........................\RC500 DEMO.hex
..........................\RC500 DEMO.lnp
..........................\RC500 DEMO.M51
..........................\RC500 DEMO.plg
RC500
.....\M48020.pdf
.....\MF RC500.doc
.....\MF RC500电路匹配与设计.pdf
.....\MfRC500电路图.pdf
.....\rc5000.txt