nRF Connect - Changes to prj.conf not shown in autoconf.h even after Project reload.

[HillRipper21]

As title says, I cannot get anything to change in autoconf.h after changing the corresponding value in prj.conf using nRF Connect samples. I have tried both Project-->Reload <project_name> and reopening the entire nRF project via File-->Open nRF Connect SDK Project. 

For example, I am working on the direction_finding_connectionless_tx example. One of the macros in the prj.conf file is: 

CONFIG_BT_DEVICE_NAME="DF Connectionless Beacon App"

If I change this to any other name, e.g. "Test", I cannot see the change in autoconf.h after the above steps. Same story for any of the boolean vars too.

[Priyanka]

Hi,

Could you tell me what is your nRF Connect SDK version and also, did you try selecting 'Clean Build Directory' when Opening the nRF Connect SDK Project?

Also, which OS are you trying this on? (Windows, MacOS or Linux)

Regards,

Priyanka

[HillRipper21]

Hi sorry for the late response was away for a few days. The nRF Connect SDK version is 1.6.1 (required for compatibility with project) and I am on Windows 10. I did try the 'Clean Build Directory' but no luck there either. Thanks.

[Priyanka]

Hi,

Could you try the following steps to verify exactly where it fails:

• Set CONFIG_BT_DEVICE_NAME to "DF Connectionless Beacon App 1"
• Delete the build folder manually
• Test with the command line (open it through Toolchain Manager)
• west build -b nrf52833dk_nrf52833
• You should see "DF Connectionless Beacon App 1" in autoconf.h
• If that works, manually delete build (delete all build folders, both 'build' and 'build_nrf52833dk_nrf52833') folder and set CONFIG_BT_DEVICE_NAME to "DF Connectionless Beacon App 2"
• Then build again using SES
• You should see "DF Connectionless Beacon App 2" in autoconf.h
• Change CONFIG_BT_DEVICE_NAME to "DF Connectionless Beacon App 3"
• Build again, but don't delete the build folder, just do a clean build
• You should see "DF Connectionless Beacon App 3" in autoconf.h

Regards,

PK

[HillRipper21]

Can you please clarify where these build folders should be and which directories I should run the west command from? I have been using SES to build everything so I am not sure where these build folders should be. I do not see them in the direction_finding_connectionless_tx folder

[Priyanka]

Hi,

1. Now you might see a folder as shown below called 'build' or 'build_nrf52833dk_nrf52833' or something similar. First, manually delete this folder from here.

If there is no such folder then good, let's begin with the next step. 

2. Next, Set the CONFIG_BT_DEVICE_NAME to "DF Connectionless Beacon App 1" and then, go to the nRF Connect -> Toolchain Manager and choose 'Open Command Prompt'

3. This opens west and you can navigate to you folder location to where the direction_finding_connectionless_tx is, for eg, I used '' cd C:\NCS\v1.7.0\nrf\samples\bluetooth\direction_finding_connectionless_tx'' command since this is my path. 

Then enter the command ''west build -b nrf52833dk_nrf52833''. 

Now try checking the autoconf.h file. You should see "DF Connectionless Beacon App 1" in autoconf.h.

4. Now again do step 1. 

5. Next, Set the CONFIG_BT_DEVICE_NAME to "DF Connectionless Beacon App 2" and then build using SES (which you already have experience doing)

6. Check the autoconf.h file. You should see "DF Connectionless Beacon App 2" in autoconf.h

7. Next, Change CONFIG_BT_DEVICE_NAME to "DF Connectionless Beacon App 3". Build again, but don't delete the build folder, just do a clean build.

You should see "DF Connectionless Beacon App 3" in autoconf.h

Hope this helps!

Regards,

PK