5/12/2015

IAR PowerPac™ File System User Guide

http://www.cadfamily.com/a/EDA_PCB/ARM/IAR-PowerPac-File-System-User-Guide_9999.html

ADJUSTING THE RAM USAGE
The file system needs RAM for management purposes in various places. The amount of RAM required depends
primarily on the configuration, especially on the drivers used. The drivers which have their own level of management
(such as NOR / NAND drivers) in general need more RAM than the "simple" drivers for hard drives, CompactFlash or
SD cards.
Every driver needs to allocate RAM. The file system allocates RAM in the initialization phase and holds it while the
file system is running. The macro ALLOC_SIZE which is located in the respective driver configuration file specifies the
size of RAM used by the file system. This value should be fine-tuned according to the requirements of your target
system.

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