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Controller hangs with call to fds_init()

I'm using nrf52 with SDK version 12.0.0. I'm trying to use the FDS for my application. I used one of the existing fds example from link fds_example.

With this example, I call the function "fds_test_init" which in turn calls "fds_init". After debugging, I reached to a point where the function "sd_flash_write" is called and this function declaration is taken from the place "/nRF5SDK/components/softdevice/s132/headers/nrf_soc.h".

It is at the call of this function that the controller hangs with message "Starting target cpu" in the console window.

Below is the definitions of FS & FDS macros:

  • FS_QUEUE_SIZE = 4
  • FS_OP_MAX_RETRIES = 3
  • FS_MAX_WRITE_SIZE_WORDS = 1024
  • FDS_OP_QUEUE_SIZE = 4
  • FDS_CHUNK_QUEUE_SIZE = 8
  • FDS_MAX_USERS = 3
  • FDS_VIRTUAL_PAGES = 3
  • FDS_VIRTUAL_PAGE_SIZE = 2048

Could anyone support me here to understand why the controller hangs at the call of the function "sd_flash_write"?

Thanks in advance.

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