RE: How to flash write nrf52840 Dongle?

woff — Tue, 29 Sep 2020 14:29:29 GMT

Sorry, I change phone.

nrf blinky can connect nrf52840 Dongle.

Thank you.

RE: How to flash write nrf52840 Dongle?

woff — Tue, 29 Sep 2020 14:09:35 GMT

I try above and flash blinky.

I reset nrf52840 Dongle.

I use nrf toolbox from Android phone.

But I can not scan any device.

What's wrong with me?

RE: How to flash write nrf52840 Dongle?

Einar Thorsrud — Tue, 29 Sep 2020 07:55:16 GMT

Hi,

It looks like there is no SoftDevice present on the device, and you do not add a SoftDevice. The ble_blinky requires a SoftDevice so you need to either add the correct SoftDevice hex in addition to the application, or add a merged hex file which contain also the SoftDevice.

In general there are three alternatives in this case:

Add both the application hex and SoftDevice hex before you click the "Write" button. You can find the SoftDevice here: <SDK>\components\softdevice\s140\hex\
Add a hex file that includes both the SoftDevice and application. The precompiled hex files found here include the SoftDevice: <SDK>\examples\ble_peripheral\ble_app_blinky\hex\
If a SoftDevice is allready present, and this is the correct version, you can add just the application and specify the ID of the SoftDevice.