Any Over the air DFU for nordic 51 boards, e.g. pca10028?

[Mitch996]

Hi, I followed through this tutorial:

https://devzone.nordicsemi.com/b/blog/posts/getting-started-with-nordics-secure-dfu-bootloader

But to my frustration I realized that all the DFU example included in the SDK 13'S EXAMPLE/DFU/

were prepared for nrf52 devices.

Where can I get an nrf51 one please?

Edit: incidentally I managed to find one that looks similar in sdk 12.3, there is this "nRF5_SDK_12.3.0_d7731ad\examples\dfu\bootloader_secure\pca10028\" example. Is it also over the air upgrade? If so could you please also tell me where are the lines which triggers the bootloader mode? After a cursory look I failed to find them.

[Edvin]

Hello,

I think you found it, but yes. It i the same over the air bootloader.

The nRF51 series was supported until SDK12.3.0. The SDKs after this, SDK13.0.0 --> ... is only supported by the nRF52 series.

 

Side note: If you have not used the DFU before, I recommend reading through this blog post.

 

Best regards,

Edvin

[Mitch996]

Hi thank you for your reply but I still have 2 questions left:

1, where in the bootloader source code was the OTA DFU mode triggered? In example code it was done by pressing and holding button 4 but I can't seem to find what that actually does.

2. What do you mean nrf51 devices will no longer be supported? You mean it will be replaced by nrf52 devices forever?