File list (Check if you may need any files):
1211
....\17.usart1
....\.........\main.c
....\.........\main.elf
....\.........\main.hex
....\.........\main.lss
....\.........\main.lst
....\.........\main.map
....\.........\main.o
....\.........\main.sym
....\.........\Makefile
....\18.usart2
....\.........\main.c
....\.........\main.elf
....\.........\main.hex
....\.........\main.lss
....\.........\main.lst
....\.........\main.map
....\.........\main.o
....\.........\main.sym
....\.........\Makefile
....\19.usart3
....\.........\main.c
....\.........\main.elf
....\.........\main.hex
....\.........\main.lss
....\.........\main.lst
....\.........\main.map
....\.........\main.o
....\.........\main.sym
....\.........\Makefile
....\AVR学习笔记五、异步串行通信(USART)实验.doc
....\串口助手
....\........\SAVE2008-4-22_11-05-09.TXT
....\........\SAVE2008-8-22_15-14-40.TXT
....\........\sscom.ini
....\........\sscom32.exe
....\........\串口通信控制器.exe
....\........\串口通信控制器.INI