File list (Check if you may need any files):
Reference Design\Four Button\Code\Board.c
................\...........\....\Board.h
................\...........\....\define.h
................\...........\....\ssp.c
................\...........\....\ssp.h
................\...........\....\Touch.c
................\...........\Gerbers\Board Outline.gbr
................\...........\.......\Board.gbr
................\...........\.......\Bottom Assy.gbr
................\...........\.......\Bottom Mask.gbr
................\...........\.......\Bottom Paste.gbr
................\...........\.......\Bottom Silk.gbr
................\...........\.......\Bottom.gbr
................\...........\.......\INDTOUCH_4KEY_BOARD.pdf
................\...........\.......\NCDrill_NonPlated_Holes.drl
................\...........\.......\NCDrill_Plated_Holes.drl
................\...........\.......\SpacerGerber.gbr
................\...........\.......\Top Assy.gbr
................\...........\.......\Top Mask.gbr
................\...........\.......\Top Paste.gbr
................\...........\.......\Top Silk.gbr
................\...........\.......\Top.gbr