Add OTA DFU on my previous nRF51 PCB.

[benevbright]

Hi, I'm originally iOS app developer.

I have been developing with custom PCB that based on nRF51 chip. (not nordic development kit) My PCB has a gyro sensor and some other sensors. And It's working and syncing with my iOS app. (it's like smart band)

I want to add OTA DFU on my PCB that has firmware already. That's all what I want. Supporting OTA DFU from iOS App. I've read documents and it says it's easy but I couldn't understand perfectly.

Current state of my PCB.

• nRF51822 128k
• SDK 6.0

Question.

1

• developer.nordicsemi.com/.../a00078.html

This doc says I can update Softdevice, Bootloader or Application. What I'm trying to do is "Updating Application"? I don't quite understand what documents should I look.

2 - developer.nordicsemi.com/.../a00081.html

To add OTA DFU on my firmware, Should I see this doc and follow it?

Thanks.

If you can give any informations or links, It would be really helpful for me.

[bjorn-spockeli]

1. Yes, you can update just the application using our OTA DFU bootloader, but it is also possible to update the SoftDevice and the Bootloader if you want to do that.
2. Yes, the Extending your Application section explains how to add DFU support to an application, so just follow the steps.

-Bjørn