How to use BLE peripheral DFU with nRF Connect SDK?

[Eric Nguyen]

Hi 
I have a question with nRF Connect SDK. I've already used nRF Connect SDK for a while and now I want to try with BLE and DFU on my PCA10040 board (nRF52832). When I look for DFU example code with nRF Connect SDK v1.5.0, the central_dfu_smp is the only one result I found. Besides that I found the ble_app_buttonless_dfu(ble_peripheral) example, it's really useful but this example belongs to nRF5 SDK. So
Does the nRF Connect SDK have ble_peripheral_dfu example code? If not, How can I modify central_dfu into peripheral_dfu in nRF Connect SDK?
Thank you so much. 

[Simonr]

Hi

From what I can tell, it seems like you're looking for something like the smp_svr example found here. We also have this guide for adding a bootloader chain to your application.

Best regards,

Simon

[Eric Nguyen]

Dear Simon
After I researched on DFU, I realize that with nRF Connect SDK I can upgrade the firmware with a FOTA upgrade. Unfortunately, they tell me that "There is currently no support for upgrading the bootloader (MCUboot) on nRF52 Series devices." so

1. How I can upgrade the firmware when I'm using nRF52832?

On the other hand, with SMP server sample, the mcumgr command-line tool only works with Bluetooth Low Energy (BLE) on Linux and macOS. On Windows there is no support for Device Firmware Upgrade over BLE yet. I wonder

2. Do we have another way to implement the signed image which does not use the mcumgr command-line tool? 

Thank you so much

[Simonr]

Eric Nguyen said:

Unfortunately, they tell me that "There is currently no support for upgrading the bootloader (MCUboot) on nRF52 Series devices."

1. Where have you read/heard this? Have you checked out our Bootloader user guide in NCS, which should explain how you can adda an upgradable bootloader.

2. DFU over BLE in NCS is configurable using mobile devices with the nRFConnect app for Android/NCS. This is discussed in this post if you'd like more information.

Best regards,

Simon