STM32F723 USB Device MSC with internal flash

[SKoh.12]

Hi!

I am using stm32f723 to implement usb device mass storage.

I try to mass storage using an internal flash, but I get a message that the formatting is not complete.

I have developed it by referring to the link below, and I have confirmed the same value for reading and writing.

But it is doesn't working.

​Can someone please confirm?

I put the file in the attachment.

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https://community.st.com/s/question/0D50X00009XkYLbSAN/stm32f4-mass-storage-class-with-internal-flash

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[Tesla DeLorean]

The large flash sectors, and erase times, make the internal flash of the F7 series ill suited to a FAT/MSC solution. Consider external flash memories with smaller erase block sizes, eMMC chips designed for such tasks.

[SKoh.12]

Thank you.

The test product does not have an emmc or nand, so I'm testing it with an internal flash to check some actions.

[Tesla DeLorean]

Then you'll need to manage the deblocking​ and partial writes to flash sectors holding existing data.