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Visitor II
September 8, 2022
Question

how to get exFAT files to access 64 Gb memory card using stm32f103

  • September 8, 2022
  • 1 reply
  • 1277 views

I am doing sd card operation using stm32f103c8t6. For sd card operation, i use FATFS files from stmcubx. But the problem is, that this generated FATFS file is only supported for up to 32Gb.

Further above the size of sd card operation, it doesn't work. Please let me help me out with this issue.

Thank you in advance.

 #STM32F1​ 

#SDCARD

#exFAT

#FatFS​ 

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    1 reply

    Graduate II
    September 8, 2022

    Check EXFAT usage is enabled via ffconf.h

    Graduate II
    September 8, 2022

    Also use a current version of FATFS for large media, the 2017 release has known issues.

    Check DISKIO layer for operational limits. The F1 should be capable of using 400GB+ media.​