undefined reference to timer functions

RE: undefined reference to timer functions

sara — Fri, 05 Jul 2019 06:31:58 GMT

k this is the new thread for it : https://devzone.nordicsemi.com/f/nordic-q-a/49406/undefined-reference-to-timer-and-saadc-functions

RE: undefined reference to timer functions

Jørgen Holmefjord — Fri, 05 Jul 2019 06:31:12 GMT

My recommendation still stands: "post a new thread where you describe your issue in detail, and also upload your project for review/debugging."

RE: undefined reference to timer functions

sara — Fri, 05 Jul 2019 04:32:24 GMT

For me its still not working.

RE: undefined reference to timer functions

Jørgen Holmefjord — Thu, 04 Jul 2019 18:12:57 GMT

For long timing, I recommend using app_timer, as this runs on RTC. RTC has lower resolution than TIMER, but much lower power consumption. See this post for more details.

RE: undefined reference to timer functions

tushar19 — Thu, 04 Jul 2019 17:53:28 GMT

Thanks. It's working now. Need to test on hardware now!

Also I would like to get suggestion from you on what is better to use for timer - repeated timer when it comes to select between app_timer and hardware timer? Who can give the max time as I see the hardware can give upto 4 minutes!

RE: undefined reference to timer functions

Jørgen Holmefjord — Thu, 04 Jul 2019 14:56:30 GMT

If you are using the HW timer you need nrf_drv_timer.c/h, yes. If you only use app_timer, this is not needed as app_timer runs on the RTC.

nrf_drv_timer.h is found in integration\nrfx\legacy in SDK 15.x.0. You will also need nrfx_timer.c from modules\nrfx\drivers\src.

RE: undefined reference to timer functions

tushar19 — Thu, 04 Jul 2019 14:46:36 GMT

RE: undefined reference to timer functions

tushar19 — Thu, 04 Jul 2019 14:37:31 GMT

But I will need nrf_drv_timer.c/h right? As you have also mentioned in above answers.

app_timer is there already!

RE: undefined reference to timer functions

Jørgen Holmefjord — Thu, 04 Jul 2019 14:35:24 GMT

app_timer.c/h is located in components\libraries\timer.

RE: undefined reference to timer functions

tushar19 — Thu, 04 Jul 2019 14:29:38 GMT

I am also facing the same issue while merging timer example in ble_beacon. I am using SDK 15.0. I tried all the ways mentioned here and also noticed that there is no timer folder in components folder!

RE: undefined reference to timer functions

Jørgen Holmefjord — Thu, 04 Jul 2019 13:56:28 GMT

These are the only things that should be required to remove these errors. I would recommend that you post a new thread where you describe your issue in detail, and also upload your project for review/debugging.

RE: undefined reference to timer functions

sara — Thu, 04 Jul 2019 12:38:35 GMT

Yes, I have included all the above c files and also have enabled the macros. But still I am not getting what I am missing out.

RE: undefined reference to timer functions

Jørgen Holmefjord — Thu, 04 Jul 2019 12:31:14 GMT

Make sure that you have included the following source files in your project: app_timer.c, nrfx_timer.c, and nrfx_saadc.c, and make sure that the following defines are set in your sdk_config.h file: APP_TIMER_ENABLED, TIMER_ENABLED, SAADC_ENABLED.

Unless you have modified the examples/function calls, I believe all these examples use the legacy driver APIs.

RE: undefined reference to timer functions

sara — Thu, 04 Jul 2019 08:42:00 GMT

Actually, I have merged freeRTOS and SAADC example with ble_app_uart example as per my requirements. so in that m getting the following errors. Please suggest any solution for it.:

Output/ble_app_uart_pca10040_s132 Release/Obj/bsp.o: In function `bsp_button_event_handler':
undefined reference to `app_timer_start'
undefined reference to `app_timer_stop'
Output/ble_app_uart_pca10040_s132 Release/Obj/bsp.o: In function `bsp_led_indication':
undefined reference to `app_timer_stop'
undefined reference to `app_timer_stop'
undefined reference to `app_timer_start'
undefined reference to `app_timer_start'
Output/ble_app_uart_pca10040_s132 Release/Obj/bsp.o: In function `bsp_init':
undefined reference to `app_timer_create'
undefined reference to `app_timer_create'
undefined reference to `app_timer_create'
Output/ble_app_uart_pca10040_s132 Release/Obj/main.o: In function `saadc_sampling_event_init':
undefined reference to `nrfx_timer_init'
undefined reference to `nrfx_timer_extended_compare'
undefined reference to `nrfx_timer_enable'
undefined reference to `nrf_drv_saadc_task_address_get'
Output/ble_app_uart_pca10040_s132 Release/Obj/main.o: In function `timers_init':
undefined reference to `app_timer_init'
Output/ble_app_uart_pca10040_s132 Release/Obj/ble_conn_params.o: In function `conn_params_negotiation':
undefined reference to `app_timer_start'
Output/ble_app_uart_pca10040_s132 Release/Obj/ble_conn_params.o: In function `on_write':
undefined reference to `app_timer_stop'
Output/ble_app_uart_pca10040_s132 Release/Obj/ble_conn_params.o: In function `on_disconnect':
undefined reference to `app_timer_stop'
Output/ble_app_uart_pca10040_s132 Release/Obj/ble_conn_params.o: In function `ble_conn_params_init':
undefined reference to `app_timer_create'
Build failed

RE: undefined reference to timer functions

Jørgen Holmefjord — Thu, 04 Jul 2019 07:27:20 GMT

App_timer and nrfx_timer are not related at all. app_timer runs on the LFCLK and RTC, while nrfx_timer is the driver for the HW TIMER peripheral. If you do not intend to use the timer, remove any source/header files related to it from the project, and disable it in sdk_config.h by setting NRFX_TIMER_ENABLED and TIMER_ENABLED to 0.

RE: undefined reference to timer functions

sara — Thu, 04 Jul 2019 04:44:12 GMT

If I disable APP_TIMER_ENABLE then I get other errors of undefined reference to app_timer_start. so if I want to use app timer so what changed do I need to do for solving nrfx_timer undefined errors?

RE: undefined reference to timer functions

acha — Tue, 29 Nov 2016 14:33:08 GMT

Thank you Jørgen, that's works :)

RE: undefined reference to timer functions

Jørgen Holmefjord — Tue, 29 Nov 2016 14:22:00 GMT

Copy line 1104-1200 from sdk_config.h file found in [SDK_ROOT]\examples\peripheral\template_project\pca10040\blank\config and paste it into line 217 of sdk_config.h found in [EXAMPLE_DIRECTORY]\pca10040\blank\config (under PWM_ENABLED if you have changed the file).

RE: undefined reference to timer functions

acha — Tue, 29 Nov 2016 14:17:38 GMT

I also try to add this code line in sdk_config.h fil :

#define TIMER_ENABLED 0

RE: undefined reference to timer functions

acha — Tue, 29 Nov 2016 14:15:19 GMT

thank you Jørgen for your answer. The problem still not solved, i add this code lines in my project :

#include "sdk_config.h"

#ifndef APP_TIMER_ENABLED
#define APP_TIMER_ENABLED 0
#endif

RE: undefined reference to timer functions

Jørgen Holmefjord — Tue, 29 Nov 2016 13:50:41 GMT

See my updated answer above. Have you done this?

RE: undefined reference to timer functions

acha — Tue, 29 Nov 2016 13:40:46 GMT

I don't think that there is the problem. Here is my makefile :

Makefile

RE: undefined reference to timer functions

Jørgen Holmefjord — Tue, 29 Nov 2016 13:35:20 GMT

Hi,

It looks like you have not included nrf_drv_timer.c source file in your project/Makefile. The file is located in [SDK_ROOT]\components\drivers_nrf\timer.

[EDIT:] If you use SDK 12, you also have to enable the timer driver in the SDK header configuration file:

#define TIMER_ENABLED 1

See the sdk_config.h file of the template application for more details.

Best regards,

Jørgen