Questions about APP_TIMER of nrf52832_SDK_15.3.0？

[Mars Zhang]

Hi,

#define TIMEOUT_INTERVAL               2000            // Two second.

     Sometimes starting app_timer_start(motTimeout_trigger_time_id, APP_TIMER_TICKS(TIMEOUT_INTERVAL), NULL), the interrupt is executed immediately, 

and it does not take two seconds.How to solve this problem?

[Jørgen Holmefjord]

Hi,

Please see my answer and suggested solution in this thread.

Best regards,
Jørgen

[Mars Zhang]

Hi Jørgen, 

I try to replace the source file app_timer.c with app_timer2.c and drv_rtc.c, but compilation error.

.\_build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol nrf_sortlist_add (referred from app_timer2.o).
.\_build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol nrf_sortlist_next (referred from app_timer2.o).
.\_build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol nrf_sortlist_peek (referred from app_timer2.o).
.\_build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol nrf_sortlist_pop (referred from app_timer2.o).
.\_build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol nrf_sortlist_remove (referred from app_timer2.o).

Where are the following functions defined?

[Jørgen Holmefjord]

Please add the following source file:

nRF5_SDK_15.3.0_59ac345\components\libraries\sortlist\nrf_sortlist.c

You may also have to enable the module in your sdk_config.h file:

// <q> NRF_SORTLIST_ENABLED  - nrf_sortlist - Sorted list
 

#ifndef NRF_SORTLIST_ENABLED
#define NRF_SORTLIST_ENABLED 1
#endif

[Mars Zhang]

Thanks very much. The problem has been solved.