Problems with customizing an application (adding custom configuration) in Exercise 2 , Lesson 3 of the DevAcademy "nRF Connect SDK fundamentals" course

[Jacek Majda]

Good day,

I have successfully implemented exercise steps 1 to 5 of Exercise 2, Lesson 3 of the DevAcademy "nRF Connect SDK fundamentals" course, that deal with "adding custom files" to an application and I successfully created a build_1 version of the project: fund_less3_exer1.

However,  I experienced problems with the next steps of that exercise: exercise steps 6 to 10 of exercise 2 of Lesson 3, that deal with "adding custom configurations" to an application.          I  have followed all activities described under exercise steps 6 to 10 of Exercise 2 , Lesson 3. However, when I try to build an additional  build (build_2) for this application, with custom configuration introduced as shown in steps 6 to 10 of this exercise - I am getting the following warning related to  \fund_less3_exer1\prj.conf:

" Warning: attempt to assign the value "y" to the undefined symbol MYFUNCTION" and then the build process gets terminated.

So, it seems that the IDE considers the symbol: MYFUNCTION to be undefined, despite me having entered the following lines into the Kconfig file (as required by the tutorial):

source "Kconfig.zephyr"

config MYFUNCTION

bool "Enable my function"

default n

I am getting similar warning: " Warning: attempt to assign the value "n" to the undefined symbol MYFUNCTION" , when I try to assign the value "n" to symbol  MYFUNCTION in the prj.conf file.

I observed that only when I enter no data into the prj.conf file (i.e there is Not a single line left in prj.conf file) , only then I can build and run this build_2 version of the project:  fund_less3_exer1 and I can observe the following message displayed on the PUTTY - the Terminal Emulator: "MYFUNCTION not enabled".

How can I successfully implement the build process for building an additional  build (build_2) for the application:  fund_less3_exer1, with custom configuration introduced as shown in steps 6 to 10 of the exercise 2 in Lesson 3?

NB.

I notice  the following pop-up message when I open the VS Code:

Invalid python executable

"C:\users\...\Programs\Python3.8" spawm

c:\windows\system\cmd.exe ENOENT 

with a Configure...  button highlighted in blue, as can be seen on the attached screenshot_one-4-July_2022.

When I click on this Configure... button, another screen appears, stating:

Kconfig.python     1 Setting Found

Last Synced: now

v Extensions(1)

      nRF Kconfig(1)          Kconfig: Python

as can be seen on the attached Screenshot_2-4-July-2022.

I am using:

1. nRF Connect for Desktop v.3.11.1

2. Toolchain Manager v.1.1.0

3. nRF Connect SDK v.1.8.0

4. nRF 9160 DK v.1.0.1

5. Windows 10 Pro , version: 20H2, OS build:19042.631

How can I successfully implement the build process for building an additional  build (build_2) for the application:  fund_less3_exer1, with custom configuration introduced as shown in steps 6 to 10 of the exercise 2 in Lesson 3?

Regards,

JM

Screenshot_one:

Screenshot_one-4-July -2022.docx

Screenshot_two:

Screenshot_two-4-July 2022.docx

[Menon]

Hello,

Sorry for the long response time. As per the error, the Application is not able to read the MYFUNCTION. I think it's the problem with the Kconfig file you have created as stated here. Can you try creating a Kconfig file through VScode? For that, use the explorer, go to your project and right click on new file. Explorer-->your_project_Name(right click)-->New file. Please see the attached screenshot for your reference.

Invalid python executable:

For this can you check the settings json button and see the Kconfig python path. You can see this by pressing the configure button from the popup error and to the right side of the panel you will be able to see the button. See the picture. If the python path shows correctly, then it will be a bug from the nRf connect sdk.

Kind Regards,

Abhijith