New power optimization tool called Otii that runs on the Power Profiler Kit.

RE: New power optimization tool called Otii that runs on the Power Profiler Kit.

vist — Wed, 31 Oct 2018 09:28:39 GMT

I can't get it to work. I get the error mentioned here forum.qoitech.com/.../196

RE: New power optimization tool called Otii that runs on the Power Profiler Kit.

Christer Fletcher — Tue, 28 Feb 2017 15:50:45 GMT

Thank you for your kind comments Narendra. If you have any more feedback or comments, don't hesitate to write to us on our forum accessible from the Help menu in the Otii application.

RE: New power optimization tool called Otii that runs on the Power Profiler Kit.

FormerMember — Tue, 28 Feb 2017 11:50:02 GMT

Using the RTT for the DUT would cause its debug unit to be powered on, which will cause few mA of current consumption always. In this case UART makes better sense, just need to switch off the UART peripheral after each log.

Many thanks to the developers at Sony for this multi-platform tool!!

RE: New power optimization tool called Otii that runs on the Power Profiler Kit.

Christer Fletcher — Tue, 20 Dec 2016 12:17:21 GMT

You are of course right. I had the single Segger setup in mind.

We do not currently support the use of RTT logs in the otii application. If we see a demand we may consider introducing the feature into the application.

If someone doesn't mind a bit of development i can be done with current otii if you forward the RTT logs to a virtual serial port.

RE: New power optimization tool called Otii that runs on the Power Profiler Kit.

wlgrd — Tue, 20 Dec 2016 10:01:26 GMT

@Christer This limitation does not reside in the PPK design (firmware running on the hardware), but the software, and the usage of a single DK as communication interface. Our software does not use the multiAPI of the pynrfjprog since it didn't exist a while ago, but now that it does this should definitely be possible to support. By using the multiAPI, RTT can be utilised from several RTT sources, so if you have an external debugger you can do RTT transfers to both DUT and and the PPK.

That being said, we can also use two different RTT channels on the same RTT instance. One for current data, one for debugging.

RE: New power optimization tool called Otii that runs on the Power Profiler Kit.

David Edwin — Tue, 20 Dec 2016 09:54:22 GMT

RTT is lighter than UART on cpu and power so it may be a better option for some applications.

We can have 2 RTT interfaces one for the PPK and one for the application on the DK. yes you do need to have a segger in addition to the segger on the DK but this should be possible. The python interfaces on the PC allow for multiple RTTs so this is definitely in the realm of the possible. What do you feel ?

RE: New power optimization tool called Otii that runs on the Power Profiler Kit.

Christer Fletcher — Tue, 20 Dec 2016 09:25:50 GMT

It is limited to UART as the PPK already use the Segger RTT interface to stream the current data. It's a limitation in the PPK design.

RE: New power optimization tool called Otii that runs on the Power Profiler Kit.

David Edwin — Tue, 20 Dec 2016 08:28:29 GMT

Does this support logging over the Segger RTT interface or is this restricted only to the UART ?