nRF9160 excess power consumption after RTT disconnect

RE: nRF9160 excess power consumption after RTT disconnect

user78169 — Wed, 27 Apr 2022 23:48:06 GMT

Has there been any progress on this?
I am still seeing the issue on the Thingy91 board with the latest version of the SEGGER tools (7.64c).

The only thing that brings the current consumption back down is power cycling the device.
Even running `nrfjprog -r` on a device is enough to start the higher current consumption.

RE: nRF9160 excess power consumption after RTT disconnect

user78169 — Wed, 16 Mar 2022 21:40:32 GMT

No problem, I can also verify that the same problem occurs when using the Thingy91 board.

I am also testing on MacOS.

RE: nRF9160 excess power consumption after RTT disconnect

user90815 — Wed, 16 Mar 2022 14:25:07 GMT

Hi Jordan, sorry for keeping you waiting.

I am trying to reproduce the issue. I will keep you posted.

RE: nRF9160 excess power consumption after RTT disconnect

user78169 — Fri, 11 Mar 2022 22:49:44 GMT

It is a custom board. The reset is included in the SWD interface (as proven by `nrfjprog -r` resetting the board).
Disconnecting from RTT should not trigger a reset though, so I'm not sure how this is relevant.

RE: nRF9160 excess power consumption after RTT disconnect

user90815 — Fri, 11 Mar 2022 15:19:43 GMT

Is this the DK or a custom board? If this is a custom board, did you include reset in the SWD interface?

RE: nRF9160 excess power consumption after RTT disconnect

user90815 — Fri, 11 Mar 2022 09:50:56 GMT

Hi Jordan,

Thank you for reporting this. Just letting you know I am looking into it and will get back to you soon.

Best regards,

Håkon