Fatal Error while building peripheral UART example.

[Nabeel Ar]

Hi,

I'm trying to test the peripheral UART example in the nRF connect SDK in the nrf52810 dk. I've built the configurations as prj_minimal.conf as mentioned in the Document. but I'm getting Fatal error uart_async_adapter.h:22:10: fatal error: zephyr/device.h: No such file or directory 22 | #include <zephyr/device.h>.

How can I solve it? Thanks in advance. 

[Turbo J]

You may grabbed an older NRF connect SDK, the include path is correct for 2.2.x and newer.

There was an include path change in the underlying zephyr RTOS.

[Nabeel Ar]

Thanks for the reply.

But I'm using version 2.2.0.

[Naeem Maroof]

Hi Nabeel,

Good to know that your initial problem is resolved.

You may try to build the same example in an older ncs, for example v2.0.0.

You may also look at known issues in the ncs v2.3.0.

sample not building in v2.3.0

Regards,

Naeem

[Nabeel Ar]

 Hi Naeem Maroof,

Thanks for the reply. As you stated I can find the issue in the known issue section.

If I want to work around where can I find the CONFIG_BT_LL_CHOICE option I can't find such an option in Kconfig.

And what's the difference between CONFIG_BT_LL_SW_SPLIT and CONFIG_BT_LL_SOFTDEVICE options if I want to change them??

Thanks in advance.

[Naeem Maroof]

You can put the following in the project configuration file (prj.conf)

CONFIG_BT_LL_SOFTDEVICE=y

The difference is using "Zephyr software BLE Link Layer" vs using "Softdevice Link Layer".

You can search about these Kconfigs from Kconfig-Reference.

[Nabeel Ar]

Tried it but no help. Still, it's not advertising.

I'll try with an older version of ncs or Is there any similar example to try?

[Naeem Maroof]

Hi Nabeel,

I have just tested it on my end. In the prj_minimal.conf, please do the following 2 changes:

(some users forget to edit the prj_minimal.conf file and just edit the prj.conf which would not be correct):

Add this line to the prj_minimal.conf:

CONFIG_BT_LL_SOFTDEVICE=y

Edit the Main_Stack in the prj_minimal.conf from 640 to 2000:

CONFIG_MAIN_STACK_SIZE=2000

Hope it resolves the issue.

Regards,
Naeem

[Nabeel Ar]

Hi Naeem Maroof,

I've opened a new application and selected the peripheral UART application and in the build configuration, I've selected the nrf52dk_nrf52810 board and prj_minimal.conf file.

In the prj_minimal.conf file I've added the CONFIG_BT_LL_SOFTDEVICE=y line and changed CONFIG_MAIN_STACK_SIZE=2000. Then I built and flashed the application in my nrf52832dk.

Still, it's not advertising. Am I missing any steps here?

[Naeem Maroof]

I am not sure with you might be missing and/or is wrong with your setup.

In my previous response, you can see that those configurations worked.

As you are also applying the same configurations, only thing I could imagine is not choosing "prj_minimal.conf" during the build.