Issue of J-link

[MCMilo]

Hi Support Team

We meet an issue like the screenshot below when I program nRF52840 chip via the SES.

The SES version is v5.42a.

The J-link we used to program is on the nRF52DK(v3.0.0) and the VDD pin and VTG pin are shorted before programming.

What is the reason? Many thanks.

[Håkon Alseth]

Hi,

 

When using a DK to program an external board, it is important that you power the external board with the same voltage as the DK, in this case; 3V.

Q1: Could you verify that your board is running with 3V?

Q2: Can you also check what nrfjprog reports? for instance: "nrfjprog --recover -f nrf52 --log" and then share the .log file?

 

Kind regards,

Håkon