MSP432E401Y: MSP432 SDK support for EXFAT

Nima Eskandari

Guru 52020 points

Part Number: MSP432E401Y
Other Parts Discussed in Thread: BOOSTXL-SHARP128

Team,

I have tried using the FATSD RAW example for reading/writing to SDXC type cards formatted with EXFAT file system.

I have modified the ffconf.h

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#define FF_USE_LFN      3
#define FF_FS_EXFAT     1
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

#define FF_USE_LFN		3
#define FF_FS_EXFAT		1

After recompiling the FATFS library

When LFN is enable, during the FATFS library calls in the main application (fatsdraw example) gets a faultISR, or if it is ran in RTOS environment, it throws HWI exception.

Is there a successful example of EXFAT support on any SimpleLink device? It could be CC3220, CC3225, CC1352, etc.

If there is a working example I can debug and find the issue.

Nima

over 3 years ago

0 Dennis Lehman over 3 years ago

TI__Guru 68151 points

Hi Nima,

I'm not aware of any other examples using EXFAT. The SDK examples and Libraries are supposed to be tested before release. I assume you are using the BOOSTXL-SHARP128? I'm not that familiar with this example - what is LFN?

0 Nima Eskandari over 3 years ago in reply to Dennis Lehman

TI__Guru 52020 points

That enables the LONG FILE NAME. It is a requirement for EXFAT.

0 Dennis Lehman over 3 years ago in reply to Nima Eskandari

TI__Guru 68151 points

Thanks Nima.

I'm not finding any other example so let me see if I have a BoosterPack and I can build and try to get same error.

0 Dennis Lehman over 3 years ago in reply to Dennis Lehman

TI__Guru 68151 points

Hi Nima,

I haven't been able to track down the BoosterPack to try to duplicate your issue. What is your status?

0 Nima Eskandari over 3 years ago in reply to Dennis Lehman

TI__Guru 52020 points

I was able to resolve this. So for anyone interested in changing the FATFS config settings, make sure to LINK the SD.c, SDSPI.c and any other TI DRIVER library that uses the FF.h files.

Changing the ffconf.h, then recompiling JUST the FATFS library by itself is NOT enough. You need to rebuild the drivers as well. Once this is done. All will build and run!

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MSP432E401Y: MSP432 SDK support for EXFAT