Hi, I've done a fair bit of searching around for an answer to this question:
Is it possible to memorymap a large file (120MB) from a block-based flash filesystem?
The board i'm working with is the KwikByte KB9202B board which has64MB SDRAM and a SD/MMC flash reader.
The application needs to be able to access a large amount of data which will be stored on the SD card in the reader. The application has been written with MMUs in mind and hence simply memory maps the large data file and accesses the data through the pointer returned.
I have read
Is anyone able to shed more light on this?
The other option is to rewrite the data-reading code to access the filesystem directly.