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EFS on SPI NOR FLASH and STM32F2xx uC

Paolo Gentile

I am using a STM32F207IG microcontroller, a SPI NOR Flash (M25P16) with Keil::MDK-Middleware EFS v6.2.0.

Init and Mounting works. Even "fcheck", "finfo()" and "ffree()" works.

I can write a file successfully, with the Standard I/O Routines "fopen", "fputs", "fflush" and "fclose".

The problem arise when I try to reopen the file for read what I wrote, fopen return NULL and ffind return fsError.

What can be? What can I do or check?

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