Hey I'm using Keil's RL-FS(Ver3.24) on ARM7. The system consists of a 8MB SDRAM and 2MB NOR Flash as memory modules for storing files. The system runs fine when files are stored only on Flash drive or RAM drive. The problems starts when some files are on RAM drive and some are on Flash drive. The exact problem is that some of files on Flash drive are not found by ffind() when some files exists on RAM drive. If RAM drive contains no file then all file on the Flash drive could be find and opened. I'm very clueless. someone help me please.