nrf51822 wake-up on interrupt and send advertisement

RE: nrf51822 wake-up on interrupt and send advertisement

Stefan Birnir Sverrisson — Wed, 12 Nov 2014 12:23:55 GMT

Did Konstantin provide an adequate answer to your problem? If so, please accept his answer by pressing the accept icon below the voting arrows.

RE: nrf51822 wake-up on interrupt and send advertisement

Attilio Dona' — Tue, 11 Nov 2014 14:32:43 GMT

Ok,

My error was invoking sd_power_gpregret_get(&counter) before ble_stack_init(), where softdevice is enabled.

Thanks for your suggestion about using sd_power_gpregret_set, the correct way in this case is:

  sd_power_gpregret_clr(0xffffffff);
  sd_power_gpregret_set(counter);

Greetings Attilio

RE: nrf51822 wake-up on interrupt and send advertisement

Attilio Dona' — Tue, 11 Nov 2014 13:48:03 GMT

I see 0 in the debugger. When invoking sd_power_gpregret_set counter is set to 1 but at the next wakeup after sd_power_gpregret_get(&counter) counter is still 0.

RE: nrf51822 wake-up on interrupt and send advertisement

Konstantin K — Tue, 11 Nov 2014 13:35:37 GMT

Where are you seeing 0, in the code with debugger or in the advertisement packet?

RE: nrf51822 wake-up on interrupt and send advertisement

Konstantin K — Tue, 11 Nov 2014 13:33:58 GMT

One thing I see is that you're using sd_power_gpregret_set() incorrectly. This functions takes a mask (rather than value) and sets the gpregret bits that are masked as 1s. This would work fine the first time you use it, but all subsequent values would just keep adding ones to gpregret. So calling it with 3 and then 4 would results in 7 in gpregret.

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