MSP432E401Y: FatFs Disk Size

Mike_d

Part Number: MSP432E401Y

Hi,

I'm using FatFs on an 8MB serial flash. How do I specify the disk size? I want to allocate 4MB to the file system and reserve the rest.

Thanks,

-Mike

over 4 years ago

0 Eddie LaCost over 4 years ago

TI__Mastermind 44070 points

Hi Mike,

Our examples are working with FatFS in the context of using it with an SD card. With an SD card setting disk size is through the low-level function to read the sector count of the SD card and reporting that back to the fatfs library.

For setting the size of a serial flash, you will need to look at the implementation of the disk io functions I think, and see how to either manually specify a different size/sector count, or otherwise modify the implementation of your disk init/mount function.