s110 firmware working only in debug mode

RE: s110 firmware working only in debug mode

Ole Bauck — Tue, 08 Mar 2016 16:17:33 GMT

You are running a revision 1 chip according to your information and the compatibility matrix. This may not work with SoftDevice 7.1.0, see here, and may be the cause of your issues. I would recommend to get hold of a revision 3 chip instead, or else you will have to roll back to an earlier SD + SDK. You are also running the 128KB flash and 16KB RAM version, are you sure you have set the correct memory sizes?

RE: s110 firmware working only in debug mode

George — Tue, 08 Mar 2016 15:17:22 GMT

one solution that does seem to work is adding an nrf_delay_ms(20) right after advertising_start(). advertising interval is set to 2s and timeout to 1s so I am assuming that the 20ms delay keeps the firmware in active mode long enough for the advert to be transmitted. If I simply reduce the delay it starts hanging up again. So definitely the issues is caused by advertising during sleep. Any ideas?

RE: s110 firmware working only in debug mode

George — Tue, 08 Mar 2016 10:58:02 GMT

Actually it seems I was wrong that reducing compiler optimization solved the issue. Same problem.

RE: s110 firmware working only in debug mode

George — Mon, 07 Mar 2016 12:10:20 GMT

Hi Ole, one thing I have noticed today is that reducing the compiler optimization seems to solve the problem. Not sure if it makes it happen less often or solves it completely but so far it has been stable. However I would still prefer to solve the root cause of the issue. I will try to determine if it really is a hard fault.

RE: s110 firmware working only in debug mode

Ole Bauck — Mon, 07 Mar 2016 12:05:36 GMT

Seems strange. Can you check if it is actually a hardfault or something else, see for example this: devzone.nordicsemi.com/.../.

The added 1mA is because the chip is in debug mode. Resetting the chip will start it in "normal" mode.