NRF_CLOCK_ENABLED not found when compliling nrf_drv_clock.c

[Wille]

With SES, I'm trying to build an app which includes nrf_drv_clock.h. There are two functions declared there that I call in my own main.c:

  - nrf_drv_clock_init()

  - nrf_drv_clock_lfclk_request(NULL)

Specifically, as follows:

static void lfclk_request(void) {     ret_code_t ret;     if( (ret = nrf_drv_clock_init()) != NRF_SUCCESS )       printf("nrf_drv_clock_init failed, ret=%d\n", ret);     nrf_drv_clock_lfclk_request(NULL); }

Now, as a newbie, I'm banging my head against a wall.

I have nrf_drv_clock.c in my project, as I think I should, but when building the code, then comes the error

1> Diagnostics: 1>   error: undefined symbol: nrf_drv_clock_init 1>   error: undefined symbol: nrf_drv_clock_lfclk_request Build failed

It seems that the problem pinpoints to the following in nrf_clock.c, as lines below it are greyed in SES:

#include <nordic_common.h> #include "nrf_drv_clock.h" #if NRF_MODULE_ENABLED(NRF_CLOCK)

To me, this contradicts with my sdk_config.h that apparently has NRF_CLOCK_ENABLED

// <e> NRF_CLOCK_ENABLED - nrf_drv_clock - CLOCK peripheral driver - legacy layer //========================================================== #ifndef NRF_CLOCK_ENABLED #define NRF_CLOCK_ENABLED 1 #endif

(Actually, I don't find any path, how the compilation of nrf_drv_clock.c could even thoretically include my sdk_config.h - and the definition.)

What am I doing wrong?

[Amanda Hsieh]

Hi Wille, 

Did you add the directory \nRF5_SDK_15.3.0_59ac345\integration\nrfx\legacy into User Include Directories for nrf_drv_clock.h as the Including header files documentation?

-Amanda H.

[Wille]

Hi Amanda,

Thank you for your reply!

I guess I have it correctly: the directory is in 'system include directories' of the project.

nrf_drv_clock.c also under the project.

Furthermore, the configuration snippet above is from Debug configuration, and I'm trying to build in Debug. (I'm not touching Debug/Release at all at this point.)

The question still remains a mystery... :^/

[Amanda Hsieh]

Hi Wille, 

Please try to enable nrfx_clock as

// <e> NRFX_CLOCK_ENABLED - nrfx_clock - CLOCK peripheral driver
//==========================================================
#ifndef NRFX_CLOCK_ENABLED
#define NRFX_CLOCK_ENABLED 1
#endif

Please let me know this can work or not. Thanks.

-Amanda H.

[Wille]

Hi Amanda,

You mean in nrfx_config.h ? OK... indeed, I had it disabled. Now enabled. However, no difference.

Thank you a lot, Amanda, for all the advice this far.

(nRF development seems promoting to modify examples, I've noticed: Function descriptions and how to find/use them are a bit around a corner. Elsewhere I've used to write from scratch, calling libraries and so forth, building on top of a Hello World. I may have to switch my brains into another mode, pruning example codes rather than building my own...)

Best,

/V

[Amanda Hsieh]

Hi Willie, 

Usually, we suggest to duplicate the SDK example as the base. That will be easier. 

-Amanda H.