NRF_LOG stops working after enabling softdevice

[ataii]

Hi, I can normally log with NRF_LOG_INFO(). But if i enable softdevice (bluetooth stack init) logging stops working. Interesting part is that there are several log lines before softdevice is enabled however none of them are shown if the code enables soft device.. And when i don't enable soft device all nrf_log functions work as expected. Using RTT logging. (52840, SDK15.0.0, S140 6.0.0)

[MartinBL]

Hi,

Are you using Deferred processing? If you do it might be that something crashes your application, or that your application ends up in an endless while loop waiting for something to happen, but never gets to print out any messages. You should debug your code and figure out exactly how far it goes. My bet is that your code is stalling in a function. Shooting from the hip I'm guessing you are using a custom PCB or some sort of BLE module and that the softdevice is trying to start an external 32 kHz crystal that isn't there?

[ataii]

Hi,

Thank you! Yes, turning deferred off solved the log issue.. But now your comment makes me worried as the system seems to never go on idle, does this mean the consumption will be high? How can i debug it.. (btw code continues as expected after softdevice is enables and app works as expected with its services etc..)

[MartinBL]

What do you mean by "never go on idle"? What do you see?