Thingy ZIP file?

RE: Thingy ZIP file?

bjorn-spockeli — Mon, 02 Mar 2020 13:00:12 GMT

You can use the Debug Out connector on any nRF51 or nRF52 DK with the Jlink On-Board Programmer to flash the Thingy:52. You can also use any J-Link Programming/Debug Probe.

The connector is a 10-pin 2x5 Socket-Socket 1.27mm IDC (SWD) Cable, like this: https://www.adafruit.com/product/1675

The need for a new private key and re-compilation of the bootloader is stated here: https://nordicsemiconductor.github.io/Nordic-Thingy52-FW/documentation/dfu_generating.html.

RE: Thingy ZIP file?

SentinelLighting — Mon, 02 Mar 2020 12:51:02 GMT

So what do I use to flash the board, since I obviously need to directly plug in? Do you have a cable spec? What JTAG/programming device do you use and/or is available? The app implies you can load a custom setup via DFU!

RE: Thingy ZIP file?

bjorn-spockeli — Mon, 02 Mar 2020 12:17:36 GMT

HI Brian,

we do not share the private key for the factory programmed bootloader on the Thingy:52. So if you want to create your own custom applications for the Thingy:52, then you need to erase the factory bootloader and then re-flash the Thingy:52 with the Secure Bootloader example from the Thingy SDK where you add your own public key.

Best regards

Bjørn

RE: Thingy ZIP file?

SentinelLighting — Sat, 29 Feb 2020 02:00:00 GMT

I have created DFU ZIP files before, for my own custom projects. Here was a previous Windows batch line I used:

..\nrfutil pkg generate --hw-version 52 --application-version 1 --application hex\ble_app_buttonless_dfu_pca10040_s132.hex --sd-req 0xAF --key-file keys\private.key hex\TestProject.zip

Of course to do this for Thingy I would need to know the existing keys!

RE: Thingy ZIP file?

SentinelLighting — Sat, 29 Feb 2020 01:49:20 GMT

Sorry that question probably wasn't clear enough. I am running Segger Embedded Studio, and I have the Thingy-52 project, which I can compile using SES. I have made changes to the project and I want to update the Thingy-52 using the DFU. Is that possible? How do I generate a ZIP file using the output of SES? Does this include the Softdevice and bootloader? I would think I need the existing public-private keys?