undefined reference to 'nrf_drv_timer_init'

Question

I'm trying to use a timer interrupt. Definitions and inline functions from nrf_drv_timer.h work fine but the linked functions in nrf_drv_timer.c are undefined? Any ideas? Using SDK 13 on nRF52840

// Main.c
#include <stdbool.h>
#include <stdint.h>
#include "nrf_delay.h"
#include "boards.h"
#include "sdk_config.h"
// timer interrupt includes
#include "nrf.h"
#include "nrf_drv_timer.h"
#include "bsp.h"
#include "app_error.h"
#include "nordic_common.h"
#include "nrf_timer.h"
#include "sdk_errors.h"
#include "nrf_assert.h"

const nrf_drv_timer_t TIMER_LED = NRF_DRV_TIMER_INSTANCE(0);

// Compiler

in directory: /home/lucas/sitara/lucas/sitaraBlinky)
Linking target: _build/nrf52840_xxaa.out
_build/nrf52840_xxaa_main.c.o: In function `main':
/home/lucas/sitara/lucas/sitaraBlinky/.//main.c:110: undefined reference to `nrf_drv_timer_init'
/home/lucas/sitara/lucas/sitaraBlinky/.//main.c:115: undefined reference to `nrf_drv_timer_extended_compare'
/home/lucas/sitara/lucas/sitaraBlinky/.//main.c:118: undefined reference to `nrf_drv_timer_enable'
collect2: error: ld returned 1 exit status
../../nRF_SDK_13_0_0/components/toolchain/gcc/Makefile.common:153: recipe for target '_build/nrf52840_xxaa.out' failed
make: *** [_build/nrf52840_xxaa.out] Error 1
Compilation failed.

Sigurd · Accepted Answer

No, it should work if you set TIMER_ENABLED and TIMER0_ENABLED to 1 
 
 The header guard in nrf_drv_timer.c looks like this: 
 #if NRF_MODULE_ENABLED(TIMER)
#define ENABLED_TIMER_COUNT (TIMER0_ENABLED+TIMER1_ENABLED+TIMER2_ENABLED+TIMER3_ENABLED+TIMER4_ENABLED)
#if ENABLED_TIMER_COUNT

// nrf_drv_timer.c code
..
..

#endif // ENABLED_TIMER_COUNT
#endif // NRF_MODULE_ENABLED(TIMER)

undefined reference to 'nrf_drv_timer_init'

Top Replies