Questions of DFU over BLE example

[PingISTL]

Dear all

I following the example here , over the air one, and get it basically working, thanks for the tutorial.

Now I have a few questions:

1. It looks like it always keep 2 images at Slot 0 and slot 1, one active at a time, after I Uploaded successfully, It running with new updated image, however when I go to BASIC menu on the the Device Manger Mobile app, and hit SEND RESET COMMAND , it back to previous image, I wonder why and is there a reliable way  to choose which slot it runs?

2.  I am thinking of use it for production, and I got a warning message like below:

CMake Warning at D:\WORK\ncs\v1.9.1\nrf\modules\mcuboot\CMakeLists.txt:262 (message):

---------------------------------------------------------
--- WARNING: Using default MCUBoot key, it should not ---
--- be used for production. ---
---------------------------------------------------------

I wonder what more procedures are needed to make it suitable for production use. 

3. Also the option for CONFIG_MCUMGR_SMP_BT_AUTHEN, if I choose y for it, what is the rest of procedure ? do I still choose app_update.bin for upgrade?

Regard

Thank you!

Ping

[PingISTL]

Hello, Vidar

Thanks for reply.

1. I tried and it works with confirm only. Also read a bit more on image uploading procedure and know a bit more now.

2. I am stuck in generating new key pair, it seems like I need to install the image tool first according to the link , I opened cmd window and tried following and got a error message below. Sorry, I am not familiar with python, and need more help here to install the tool. I am a windows user.

Could you help further please?

Ping

[Vidar Berg]

Hello Ping,

The imgtool is included in the SDK toolchain. Try to open the terminal from the Toolchain manager app, then run 'imgtool' from the terminal to verify that it is installed.