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,

The steps to perform BLE dfu using external flash is explained in our DevAcademy course. See here: Exercise 3 - DFU with external flash - Nordic Developer Academy 

Regards,

Swathy

[hemakumar]

I followed Exercise 3, which, for NCS version 2.6.0, refers back to Exercise 2. In Exercise 2, the note section mentions a sample for using external flash via SPI on the nRF7002 DK. I checked that sample, but it is meant for USB and not BLE DFU.

I also referred to Exercise 5, which covers BLE DFU. However, the sample provided there uses external flash via QSPI. On the nRF7002 DK, QSPI is already used by the Wi-Fi module, so I can't use it for external flash.

What I need is a BLE DFU sample for the nRF7002 DK that uses SPI for external flash.