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Using FatFs to write C++ streams to files on an SD card

Question asked by Scott on Dec 11, 2014
Latest reply on Aug 12, 2016 by kramer.david
I recently had the pleasure of modifying the IAR standard library files so that C++ streams can be used to write to files on an SD card on an STM3220G-EVAL board.  This was a fun experience which included implementation of the functions the functions __open(), __close(), __lseek(), __read(), __write(), __remove(), __rename().  I haven't seen any information on the internet as to how this it done but I thought I would at least share this information with the world as a starting point for others who  might need to do the same thing.  If you know of any standard implementation for doing this sort of thing then can someone please let me know?