File list (Check if you may need any files):
Lab0701-Echo\5509.h
............\aic23.c
............\audio.c
............\audio.cmd
............\......CS_\FILE.CDX
............\.........\FILE.DBF
............\.........\FILE.FPT
............\.........\SYMBOL.CDX
............\.........\SYMBOL.DBF
............\.........\SYMBOL.FPT
............\audio.paf
............\audio.paf2
............\audio.pjt
............\audio.sbl
............\c55xxdefs.h
............\cc_build_Debug.log
............\Debug\aic23.obj
............\.....\audio.map
............\.....\audio.obj
............\.....\audio.out
............\.....\i2c.obj
............\.....\sdram_init.obj
............\.....\util.obj
............\Debug.lkf
............\Debug.lkv
............\i2c.c
............\readme.txt
............\sdram_init.c
............\SY.wks
............\util.c
............\util.h
............\audio.CS_
............\Debug
Lab0701-Echo