nrf_drv_timer.c left out from compiling

[Rabbi]

I am getting following error while building the project.

undefined reference to `nrf_drv_timer_pause'

undefined reference to `nrf_drv_timer_clear'

I believe these functions are located in nrf_drv_timer.c. I have added the nrf_drv_timer.h header file and the program locates it perfectly. However, I noticed that nrf_drv_timer.c is left off from compiling when I am building the project which I think raises this error.

Note that, I have added the nrf_drv_timer.c files path in preprocessing and mentioned #define TIMER_ENABLED 1 in sdk_config.h file. Also, I am using the Segger Embedded Studio to build the project.

I will appreciate if anyone can help me in solving this issue. Thanks!

[RK]

So add the .c file to the list of files in the project so it gets compiled. That big list of files on the left hand side of the screen, those are the compiled files, if it's not being compiled, it's because it's not in that list. 

[Rabbi]

This file is on that list. However, it is left as uncompiled.

[RK]

well it's either not actually on the list or you've selected the option (right click) to exclude it from the project, or the folder it's in is excluded from the project or similar. You could try removing it and then re-adding it incase you've selected such an option by mistake. 

[Rabbi]

Thank you for your reply. I haven't excluded it. Also, I removed it and added it again but the problem remains.

[Bjørn Kvaale]

Maybe you need to add another define to be able to use nrf_drv_pause & nrf_drv_timer_clear? Have you checked to make sure this is not the case?

[RK]

That's an interesting thought. Usually #defines are used in .h files and cause compilation errors for undefined functions as unused functions are tossed by the linker anyway so you just compile them and don't worry about it. However the nrf_drv_timer.c does have code guarded by #if, in this case it's 

#if NRF_MODULE_ENABLED(TIMER) 

and

#if ENABLED_TIMER_COUNT

so yes it's quite likely one of those two things is not enabled.