NRF52840 Preview DK firmware problems

[Ove-Anders Gaarder Aune]

Having some problems upgrading the PCA10056 to firmware 1.0.1 as stated in the getting started. After downloading the only file I found I can no longer connect to it.

Can anyone give me some hints on where I can find the appropriate firmware both the the jlink OB and the mbed firmware ?

[Ole Bauck]

The interface MCU firmware is not in the download page for nRF52840 PDK. You can use the ones on the nRF52 DK download page. This is an older version than the one shipped with the nRF52840 PDK and all features will not be functional, but if you try to program the device (for example using nrfjprog, nrfGo studio or an IDE like Keil) you will be prompted to update the firmware to the newest version.

Here is the section in the user guide that describes how to change the firmware.

I can't find where it says to upgrade to the 1.0.1 firmware on the getting started page. Do you mean 1.1.0. In this case this is the firmware running on the nRF52840 not on the interface chip (debugger/programmer chip).

[Ole Bauck]

Ok, are you able to connect to the card using nrfjprog?