FDS write while receive data through on_write

[Zacker]

Hi, I'm using SDK13. I'm tring to save big size data (about 10KB) into flash when received them with 20 bytes pieces. I called fds_record_write() in NUS's data handler, and wait util it's finished, but registered fds callback never get called so the finish flag won't be set. Can any one help on this?

[MartinBL]

Hi,

This is probably related to your interrupt priorities. See these posts:

Can ble_nus_string_send() be called from a TWI callback?

SPI hangs within RTC CC callback closed

Fstorage read and write at SDK11

As my colleague suggests in the last link, you should use a scheduler or simply set a flag in the NUS data handler, check the flag in your main() loop and that way move the flash write to the main context.

[Zacker]

Followed your suggestion to put the fds write in a scheduler and do it in main context, and it works. Thanks.