File list (Check if you may need any files):
ex04_UART\cyg_user_start.c
.........\default.ecc
.........\......._build\devs\serial\score\spce3200\current\makefile
.........\.............\....\touch\score\spce3200\current\makefile
.........\.............\error\current\makefile
.........\.............\hal\common\current\makefile
.........\.............\...\score\arch\current\makefile
.........\.............\...\.....\spce3200\current\makefile
.........\.............\infra\current\makefile
.........\.............\.o\common\current\makefile
.........\.............\..\fileio\current\makefile
.........\.............\..\serial\current\makefile
.........\.............\..\wallclock\current\makefile
.........\.............\.soinfra\current\makefile
.........\.............\kernel\current\makefile
.........\.............\language\c\libc\common\current\makefile
.........\.............\........\.\....\i18n\current\makefile
.........\.............\........\.\....\setjmp\current\makefile
.........\.............\........\.\....\.ignals\current\makefile
.........\.............\........\.\....\.tartup\current\makefile
.........\.............\........\.\....\..dio\current\makefile
.........\.............\........\.\....\...lib\current\makefile
.........\.............\........\.\....\..ring\current\makefile
.........\.............\........\.\....\time\current\makefile
.........\.............\........\.\...m\current\makefile
.........\.............\makefile
.........\.............\services\memalloc\common\current\makefile
.........\........install\include\assert.h
.........\...............\.......\ctype.h
.........\...............\.......\.yg\error\codes.h
.........\...............\.......\...\.....\errno.h
.........\...............\.......\...\.....\strerror.h
.........\...............\.......\...\fileio\dirent.h
.........\...............\.......\...\......\fileio.h
.........\...............\.......\...\......\inode.h
.........\...............\.......\...\......\limits.h
.........\...............\.......\...\......\sockio.h
.........\...............\.......\...\hal\apbdma.h
.........\...............\.......\...\...\arch.inc
.........\...............\.......\...\...\basetype.h
.........\...............\.......\...\...\dbg-thread-syscall.h
.........\...............\.......\...\...\dbg-threads-api.h
.........\...............\.......\...\...\drv_api.h
.........\...............\.......\...\...\generic-stub.h
.........\...............\.......\...\...\hal_arbiter.h
.........\...............\.......\...\...\hal_arch.h
.........\...............\.......\...\...\hal_cache.h
.........\...............\.......\...\...\hal_diag.h
.........\...............\.......\...\...\hal_endian.h
.........\...............\.......\...\...\hal_if.h
.........\...............\.......\...\...\hal_intr.h
.........\...............\.......\...\...\hal_io.h
.........\...............\.......\...\...\hal_misc.h
.........\...............\.......\...\...\hal_spd.h
.........\...............\.......\...\...\hal_stub.h
.........\...............\.......\...\...\hal_tables.h
.........\...............\.......\...\...\lcd_support.h
.........\...............\.......\...\...\platform.inc
.........\...............\.......\...\...\plf_cache.h
.........\...............\.......\...\...\plf_intr.h
.........\...............\.......\...\...\plf_io.h
.........\...............\.......\...\...\plf_spce3200.h
.........\...............\.......\...\...\plf_stub.h
.........\...............\.......\...\...\score-regs.h
.........\...............\.......\...\...\score-stub.h
.........\...............\.......\...\...\score.inc
.........\...............\.......\...\...\score_opcode.h
.........\...............\.......\...\infra\clist.hxx
.........\...............\.......\...\.....\cyg_ass.h
.........\...............\.......\...\.....\cyg_trac.h
.........\...............\.......\...\.....\cyg_type.h
.........\...............\.......\...\.....\cyg_type.inc
.........\...............\.......\...\.....\diag.h
.........\...............\.......\...\.....\testcase.h
.........\...............\.......\...\.o\config_keys.h
.........\...............\.......\...\..\de