FreeRTOS + FAT exFAT Format Card does not work

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1

Hello

I use FreeRTOS + FAT with Renesas EK-RA6M3.

After running FF_Format the card works fine.
Cards formatted in exFAT format on a PC not work.

How do I use a card formatted in exFAT?

Best regards

2

exFAT (Extended File Allocation Table) is a more modern file system designed especially for slightly larger capacity devices. FreeRTOS+FAT primarily supports FAT12, FAT16, and FAT32 file systems. It doesn’t have built-in support for exFAT (yet). exFAT is not backwards compatible with FAT32.
When you use FF_Format, the card is formatted to a FAT32 file system (max. file size of 4GB), which is why it works fine afterwards.
The most straightforward solution for FreeRTOS+FAT with Renesas EK-RA6M3 is to stick to FAT32. Reformat the card formatted in exFAT to FAT32 using FF_Format or a method specific to your machine’s OS or a third-party tool.

1 Like
3

Thank you for reply.
I understand.
I was told internally that FAT32 is not currently common.
I am in so much trouble.
Waiting for exFAT support.