File list (Click to check if it's the file you need, and recomment it at the bottom):

04_PIT\.cproject
04_PIT\.cwGeneratedFileSetLog
04_PIT\.project
04_PIT\ReferencedRSESystems.xml
04_PIT\SaAnalysispointsManager.apconfig
04_PIT\4_PIT.MP4
04_PIT\RAM\sources.mk
04_PIT\RAM\makefile
04_PIT\RAM\K20_Lab_Board_V4.args
04_PIT\RAM\objects.mk
04_PIT\RAM\makefile.local
04_PIT\RAM\K20_Lab_Board_V4.2.map
04_PIT\RAM\Project_Settings\Startup_Code\subdir.mk
04_PIT\RAM\Project_Settings\Startup_Code\__arm_end.args
04_PIT\RAM\Project_Settings\Startup_Code\__arm_start.args
04_PIT\RAM\Project_Settings\Startup_Code\kinetis_sysinit.args
04_PIT\RAM\Project_Settings\Startup_Code\__arm_start.d
04_PIT\RAM\Project_Settings\Startup_Code\__arm_end.d
04_PIT\RAM\Project_Settings\Startup_Code\__arm_end.o
04_PIT\RAM\Project_Settings\Startup_Code\kinetis_sysinit.d
04_PIT\RAM\Project_Settings\Startup_Code\__arm_start.o
04_PIT\RAM\Project_Settings\Startup_Code\kinetis_sysinit.o
04_PIT\RAM\Sources\subdir.mk
04_PIT\RAM\Sources\KMUST_GPIO.args
04_PIT\RAM\Sources\KMUST_PIT.args
04_PIT\RAM\Sources\main.args
04_PIT\RAM\Sources\main.d
04_PIT\RAM\Sources\KMUST_GPIO.d
04_PIT\RAM\Sources\KMUST_PIT.d
04_PIT\RAM\Sources\KMUST_GPIO.o
04_PIT\RAM\Sources\KMUST_PIT.o
04_PIT\RAM\Sources\main.o
04_PIT\RAM\K20_Lab_Board_V4.2.elf
04_PIT\Sources\main.c
04_PIT\Sources\KMUST_GPIO.c
04_PIT\Sources\KMUST_PIT.c
04_PIT\Project_Settings\Startup_Code\__arm_end.c
04_PIT\Project_Settings\Startup_Code\__arm_start.c
04_PIT\Project_Settings\Startup_Code\kinetis_sysinit.c
04_PIT\Project_Settings\Startup_Code\kinetis_sysinit.h
04_PIT\Project_Settings\Startup_Code\runtime_configuration.h
04_PIT\Project_Settings\Linker_Files\MK20DN512_flash.ld
04_PIT\Project_Settings\Linker_Files\MK20DN512_ram.ld
04_PIT\Project_Settings\Debugger\K20_Lab_Board_V4.2_FLASH_USBDM.launch
04_PIT\Project_Settings\Debugger\K20_Lab_Board_V4.2_RAM_USBDM.launch
04_PIT\Project_Settings\Debugger\MK20DN512.mem
04_PIT\Project_Settings\Debugger\init_kinetis.tcl
04_PIT\Project_Settings\Debugger\mass_erase_kinetis.tcl
04_PIT\Project_Headers\MK20D10.h
04_PIT\Project_Headers\derivative.h
04_PIT\Project_Headers\KMUST_GPIO.h
04_PIT\Project_Headers\gpio_cfg.h
04_PIT\Project_Headers\KMUST_PIT.h
04_PIT\FLASH\K20_Lab_Board_V4.2.map
04_PIT\FLASH\K20_Lab_Board_V4.args
04_PIT\FLASH\makefile
04_PIT\FLASH\makefile.local
04_PIT\FLASH\objects.mk
04_PIT\FLASH\sources.mk
04_PIT\FLASH\K20_Lab_Board_V4.2.elf
04_PIT\FLASH\K20_Lab_Board_V4.2.hex
04_PIT\FLASH\Sources\ADC.args
04_PIT\FLASH\Sources\Beep.args
04_PIT\FLASH\Sources\LED.args
04_PIT\FLASH\Sources\MMA8451Q.args
04_PIT\FLASH\Sources\PIT.args
04_PIT\FLASH\Sources\System.args
04_PIT\FLASH\Sources\UART0.args
04_PIT\FLASH\Sources\main.args
04_PIT\FLASH\Sources\subdir.mk
04_PIT\FLASH\Sources\KMUST_GPIO.args
04_PIT\FLASH\Sources\KMUST_GPIO.d
04_PIT\FLASH\Sources\main.d
04_PIT\FLASH\Sources\KMUST_PIT.args
04_PIT\FLASH\Sources\KMUST_GPIO.o
04_PIT\FLASH\Sources\main.o
04_PIT\FLASH\Sources\KMUST_PIT.d
04_PIT\FLASH\Sources\KMUST_PIT.o
04_PIT\FLASH\Project_Settings\Startup_Code\__arm_end.args
04_PIT\FLASH\Project_Settings\Startup_Code\__arm_end.d
04_PIT\FLASH\Project_Settings\Startup_Code\__arm_start.args
04_PIT\FLASH\Project_Settings\Startup_Code\__arm_start.d
04_PIT\FLASH\Project_Settings\Startup_Code\kinetis_sysinit.args
04_PIT\FLASH\Project_Settings\Startup_Code\subdir.mk
04_PIT\FLASH\Project_Settings\Startup_Code\__arm_end.o
04_PIT\FLASH\Project_Settings\Startup_Code\kinetis_sysinit.d
04_PIT\FLASH\Project_Settings\Startup_Code\__arm_start.o
04_PIT\FLASH\Project_Settings\Startup_Code\kinetis_sysinit.o
04_PIT\.settings\com.freescale.core.ide.cdt.toolchain.prefs
04_PIT\.settings\com.freescale.core.ide.newprojectwizard.prefs
04_PIT\RAM\Project_Settings\Startup_Code
04_PIT\FLASH\Project_Settings\Startup_Code
04_PIT\RAM\Project_Settings
04_PIT\RAM\Sources
04_PIT\Project_Settings\Startup_Code
04_PIT\Project_Settings\Linker_Files
04_PIT\Project_Settings\Debugger
04_PIT\FLASH\Sources
04_PIT\FLASH\Project_Settings
04_PIT\RAM