Segger Studio, trouble compiling "nrfx_wdt"

[NorBLE]

Hello,

I'm trying to compile a slightly modified version of the template application for nRF52832 using Segger Studio.  I'm running into a compile issue with this line utilizing the watch dog timer in util.c:

I've done the following things which I think is needed to make sure wdt is part of the build.

1)  I've included "nrfx_wdt.c" in the file tree under <nrf_drivers>, as seen in the screen shot above.  I'm using the SDK version saved under <...\modules\nrfx\drivers\src>

2)  Under the "c_user_include_directories" in the .emProject, I've added "../../../../../../modules/nrfx/drivers/include", the directory that holds the header "nrfx_wdt.h".

I suspect that it's not actually building wdt.  When I view nrfx_wdt.c file under SES, it's gray out and there's no size after compile.

While I was googling for a possible solution, I also came across people including this directory in their user_include directories:

"../../../../../../components/drivers_nrf/wdt"

I can't find any directory named <wdt> in the SDK in that folder:

So that's a bit of a mystery for me.  What am I doing wrong with SES not compiling wdt?

Thanks.

[awneil]

You've forgotten to add necessary settings in sdk_config.h to enable the WDT stuff ... ?

[NorBLE]

Thanks.  Yes, I have this enabled in sdk_config.h, but still get the same issue.

#ifndef NRFX_WDT_ENABLED
#define NRFX_WDT_ENABLED 1
#endif

Along the lines of the file not being included in the build, when I right click on it to see the definition, it doesn't go anywhere, even though the nrfx_wdt.c is in the nRF_Drivers tree.

[Kenneth]

Can you try the tutorial and check if that works:
https://www.youtube.com/watch?v=t-kh1EbesvI&list=PLx_tBuQ_KSqGHmzdEL2GWEOeix-S5rgTV&index=6

Also check out:
https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/nrfx_migration_user_guide.html?cp=5_1_2_5 

[awneil]

I note that the file is still showing the same sizes.

Is the content of the file still all greyed-out?

The NRFX_CHECK is what checks for the sdk_config.h settings - so, if it's still all greyed-out, then you still haven't (quite) got all the settings correct ...

EDIT

Note that there is further confusion due to the inter-relation of NRFX_... and NRF_... settings.

You need to get them both correct - and one can end up messing with the other.

This is a common source of problems & confusion with the Nordic SDK.

I suggest finding an example which has the WDT working, and checking against that ...

[awneil]

awneil said:

This is a common source of problems & confusion with the Nordic SDK

https://devzone.nordicsemi.com/f/nordic-q-a/52072/spim3-initialization-issue/209544#209544

[NorBLE]

Turns out, I needed to enable the legacy "nrf_drv_wdt" in SDK_config.h.  I don't understand how that solves the problem, but it did.

[awneil]

I'm not sure that anyone really understands it!

Anyhow, glad you fixed it, and thanks for feedback.

Now please verify the answer to mark it as fixed: