On Wednesday 30 November 2011 04:22:03 Jansta Marek, 2N wrote:
> Hi,
>
> I am writing an embedded application where I need to use a NAND file
> system. The system resources are limited (I'm using a microcontroller from
> the STM32F205 family, 256kB Flash, 128kB RAM).
>
> I plan to use the HY27UF081G2A NAND memory (128MB, 2kB page size, 128kB
> erase block). I would like to keep the RAM footprint as small as possible
> (50kB RAM at most; including the NAND driver, buffers etc.). Do you think I
> could fit?

No. That is too constrained.

As a very rough rule of thumb, with 2k pages you can budget approximately 1k 
of RAM per MB of NAND just for the tnodes.

-- Charles