RE: How do I get the softdevice into its lowest power state when not using Bluetooth?

Glen M — Thu, 20 Dec 2018 16:18:24 GMT

Ok thanks - I'll try to merge that with the current port_cmsis_systick, or perhaps just use it as-is and see how it works.

The off times for Bluetooth will usually be very long (perhaps months), so I'll try the sd_softdevice_disable. This is an industrial instrument where a user will want to connect and get information on how the system has been performing, and then leave the site.

Thanks!

RE: How do I get the softdevice into its lowest power state when not using Bluetooth?

Susheel Nuguru — Thu, 20 Dec 2018 07:41:41 GMT

Hi Glen,

The thread you have shown with changes to port_cmsis_systick.c has shown promising results when i tested this on my desk. I had a test that kept my demo with the changes running for more than a day, so the changes in those thread look promising.

1) You can try the changes in the thread you mentioned. Like I said, those results looks very promising.

2) Depends on what "awhile" means. If its in hundreds of milli seconds then you can simply call the sd_softdevice_disable when you do not use it and then re_enable it when you need it. But if the on and off time are shorter, then the overhead of softdevice enable/disable is not worth it as it might now help reduce the power consumption.