NRF_ERROR_NO_MEM during DFU over UART (There is no softdevice in use just MBR , Bootloader and Application)

[Rafalino]

Hello,

I have  nRF52840 with code that is based on SDK16.

I am not using Softdevice in my project - just  MBR , Bootloader and Application.

I was able to upgrade my code over UART while using bootloader code (based on SDK 16 example secure_bootloader_uart_mbr_pca10056) and had no issues - everything worked fine.

Yesterday, after I have added to my application FDS capabilities I found out that the UART DFU fails with error 0x04 (NRF_ERROR_NO_MEM).

Any ideas on how to fix it ?

These are the linker section placement MACROs:

FLASH_PH_START=0x0

FLASH_PH_SIZE=0x100000

RAM_PH_START=0x20000000

RAM_PH_SIZE=0x40000

FLASH_START=0x1000

FLASH_SIZE=0xdf000

RAM_START=0x20000008

RAM_SIZE=0x3fff8

[Vidar Berg]

Hello Rafalino,

Thank you for the update. Just let me know if you run into this issue again in the future. I'm not sure why the FDS is impacting DFU in this case. Most of the BLE examples use FDS and I haven't seen this error with those.

Best regards,

Vidar