Selecting Softdevice and SDK for Secure DFU using OTA

[vineeshvs]

Dear Nordic team,

We have been working with SDK 8 and Softdevice S110 so far. We would now like to have the DFU using OTA for our product. I am looking for SDK versions (which are stable and production ready) and Softdevices which can make use of the latest secure DFU programming OTA. Which ones would you guys recommend?

(I have nrf51-DK with me). Also we are planning to use nrf51822 chip for the product. I also have nrf52-DK, but not planning to use it since I guess it would take some time to port all the codes to nrf-52.

[bjorn-spockeli]

Hi Vineeshvs,

Secure DFU (i.e. DFU with signed images) was introduced in SDK v12.0.0 and is available in all newer SDK versions, e.g. v12.x.x and v13.0.0.

In SDK v12.x.x and newer the only supported SoftDevice for the nRF51 series is the S130 v2.0.x, see this Infocenter page.

I recommend using the latest SDK version that supports the nRF51 series, i.e. SDK v12.3.0.

Best regards

Bjørn

[vineeshvs]

Hi,

1. Is this a stable version which can be used for production? Or is it still in development phase?

2. Which one should I download .

It is this link

3. The third option doesn't have S130 in it. Also id doesn't support PCA10028, which is there in my nrf51-DK!!

[bjorn-spockeli]

You are correct, I forgot to mention that nRF51 is only supported until SDK v12.3.0. SDK v13.0.0 supports nRF52 only. Thus, you should download SDK v12.3.0, here is the link. I have corrected my answer.