flash FDS writing operation is not happening

RE: flash FDS writing operation is not happening

Jørgen Holmefjord — Tue, 11 Oct 2022 13:52:27 GMT

Hi,

[quote user="hareesh gorle"]That is now working fine after made that changes.[/quote]

Good to hear.

[quote user="hareesh gorle"]But after system reset, my flash data also get erased. What could be the reason.[/quote]

I'm not aware of anything that can cause the flash data to be automatically erased on a reset, except maybe from an old chip with worn out flash (flash write/erase lifetime is minimum 10 000 cycles) . If the flash data is erased from a reset, something in your application must be erasing the data. Can you dump the content of the FDS pages (or full flash) before and after reset, and upload the files here?

[quote user="hareesh gorle"]Please let me know if anything I need to configure in sdk_config.h or in any other files.[/quote]

There is no sdk_config.h settings that will cause the FDS data to be erased by a chip reset.

Best regards,
Jørgen

RE: flash FDS writing operation is not happening

hareesh gorle — Tue, 11 Oct 2022 09:32:19 GMT

Hi,

That is now working fine after made that changes.

But after system reset, my flash data also get erased. What could be the reason.

Please let me know if anything I need to configure in sdk_config.h or in any other files.

Thanks and regards,

Hareesh.

RE: flash FDS writing operation is not happening

Jørgen Holmefjord — Mon, 10 Oct 2022 07:43:22 GMT

The error code corresponds to FDS_ERR_NOT_FOUND (0x8609). If the record have not been written for the first time using fds_record_write(), the fds_record_find() function will return this error. You can handle the error in a different way than passing the error code to APP_ERROR_CHECK(), for instance by writing the record if it does not exist.

RE: flash FDS writing operation is not happening

hareesh gorle — Sat, 08 Oct 2022 06:50:46 GMT

Hi Jorgen,

I am getting following error while debugging.

<error> app: ERROR 34313 [Unknown error code] at D:\nrf_sdk\nRF5_SDK_17.1.0_ddde560\nRF5_SDK_17.1.0_ddde560\examples\Ble_experiments\ble_uart_peripheral-NID\main.c:1088
PC at: 0x000282B5
<error> app: End of error report

rc = fds_record_find(CONFIG_FILE, CONFIG_REC_KEY, &desc, &tok);
APP_ERROR_CHECK(rc); //===================================> main.c:1088

Thanks and regards,

Hareesh

RE: flash FDS writing operation is not happening

Jørgen Holmefjord — Fri, 07 Oct 2022 12:26:47 GMT

Hi,

How do you check that it is not updating? Do you get any error codes?

FDS writes are asynchronous, meaning that the write is not necessarily completed when the write/update function returns. You need to implement the event handler and wait for the events indicating operation success before reading back the record. When using a Softdevice, the flash operations will be scheduled between BLE events and other Softdevice tasks.

Best regards,
Jørgen