BLE DFU using External SPI Flash on nRF7002DK

[hemakumar]

I'm working with the nRF7002DK board using NCS version 2.6.0. The internal flash is full, so I need to perform BLE DFU using external flash. Is there a sample available for this?

[SwRa]

Hello,

There is no official ready-to-use sample, but the configuration steps are documented (using SPI on nRf7002-DK in exercise 2 and BLE DFU in exercise 5). You must manually adapt the BLE DFU sample to use SPI external flash on the nRF7002 DK. See here:  RE: nrf5340 DFU with external flash   

Basically, adapt the steps mentioned and choose SPI in exercise 3: 

I would also suggest that you refer this discussion:  RE: FOTA over BLE using external flash (nRF Connect SDK 2.9.0) - upload to device stuck . Note that it is for nRF52840 DK and will require pin and overlay adjustments for the nRF7002 DK.

 

Regards,

Swathy