#error app_timer for freeRTOS requires configUSE_TIMERS option to be activated

[Duc H Huynh]

Hi Alls,

I'm trying to compile and test the example project from SKD_12.3.0 and receiving the following error:

#error app_timer for freeRTOS requires configUSE_TIMERS option to be activated.

I have checked the FreeRTOSConfig.h file and seen that configUSE_TIMERS has already been defined as 1.

I'm not sure how I can activate configUSE_TIMERS. Has anyone come across this issue?

Thank you very much for reading my question?

Regards, Duc

[Susheel Nuguru]

There is one FreeRTOSConfig.h file in your project folder and there is one in nRF5_SDK_12.3.0_d7731ad\external\freertos\config

Make sure that you are editing the correct header file that is in your project.

Looking at the gcc Makefile of the example from the release, it looks like it is using the header from the project folder INC_FOLDERS +=
$(PROJ_DIR)/config/ble_app_hrs_freertos_pca10040_s132 \

This is simple preprocessing for the compiler, I cannot see how this could go wrong unless you are editing the wrong file.

[Duc H Huynh]

Thanks Aryan. I edited the config file in nRF5_SDK_12.3.0_d7731ad\external\freertos\config and now it's working fine. Thanks a lot for your suggestion.