I want to implement USB DFU on nRF7002DK evaluation board.

[Yoshihiro Goto]

As the title, I am trying to implement a USB DFU on an nRF7002DK (nRF5340) evaluation board. I am searching DEVZONE and I found that there are several threads about smp_svr sample project as a good reference. I have read and am trying to implement, but several errors occured when build.

While looking for a solution to that build error, I found another thread that says the nRF7002 DFU requires an external flash. Is this true?
Also, the reply says that a single buffer instead of a double buffer will allow DFU, is that also true?

 OTA possible when using nRF5340 + nRF7002 combo, without external flash? 

In conclusion, what I want to do has not been solved at all, and I feel like I have even more problems.

Incidentally I have implemented USB DFU with  nRF52840 and successed.

[Sigurd Hellesvik]

Hi

While looking for a solution to that build error, I found another thread that says the nRF7002 DFU requires an external flash. Is this true?

Not really. Depends on which kind of DFU you intend to use.

Also, the reply says that a single buffer instead of a double buffer will allow DFU, is that also true?

I dont get how this is relevant, so I will not answer it to avoid confusion.

To solve this, I suggest that you take our new course: https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-8-bootloaders-and-dfu-fota/. Then let me know if you if you have any questions.

Regards,
Sigurd Hellesvik