Nrf52 with softdevice doesn't exit system off

RE: Nrf52 with softdevice doesn't exit system off

Ole Bauck — Thu, 29 Sep 2016 12:02:52 GMT

Can you test on a nRF52 DK? I don't see how this is not working unless the actual button is not working correctly. As I said I was able to get it to work on nRF52 DK when I changed to SOFTDEVICE_HANDLER_INIT(..).

RE: Nrf52 with softdevice doesn't exit system off

yaron — Thu, 29 Sep 2016 08:57:49 GMT

I am using chip revision Rev 1 (QFAA-B00). Yes, I am sure I have flashed the softdevice. (otherwise, I would not go pass the init stage)

RE: Nrf52 with softdevice doesn't exit system off

Ole Bauck — Thu, 29 Sep 2016 08:55:56 GMT

What hardware are you using? You are sure that you have flashed the SoftDevice on board first?

RE: Nrf52 with softdevice doesn't exit system off

yaron — Thu, 29 Sep 2016 08:43:45 GMT

I have already tried using "SOFTDEVICE_HANDLER_INIT", it doesn't work...

RE: Nrf52 with softdevice doesn't exit system off

Ole Bauck — Thu, 29 Sep 2016 08:41:44 GMT

You should update the SoftDevice and the SDK sooner or later so why not do it know? SDK 0.9.1 and SD S132 v1 alpha has a lot of bugs that are fixed in the later versions, and in addition they were designed for the Engineering A version of the chip.

If you want to test this now you can use SOFTDEVICE_HANDLER_INIT(..) instead. It will call sd_softdevice_enable(..) and in addition set up buffers and enable the ble event interrupt. If this does not work let me know.

RE: Nrf52 with softdevice doesn't exit system off

yaron — Thu, 29 Sep 2016 07:59:51 GMT

Hi Ole. Thanks for your answer. I wanted to avoid updating the softdevice for now. I don't get an error upon calling sd_softdevice_enable. My problem is just the wakeup from system off, that doesn't work

RE: Nrf52 with softdevice doesn't exit system off

Ole Bauck — Thu, 29 Sep 2016 07:45:51 GMT

You should not use SDK 0.9.1 and SoftDevice alpha, these are outdated and not production versions. You should use the newest SDK 12 and SoftDevice S132 v3.0.0. With this SDK and SD it should work.

When I tested with SDK 0.9.1 it did not work for me neither, I got a strange error code. I am not sure why you get this error, but if you change

err = sd_softdevice_enable(NRF_CLOCK_LFCLKSRC_RC_250_PPM_1000MS_CALIBRATION,    softdevice_assertion_handler1);

with

SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_1000MS_CALIBRATION, NULL);

It should work.