How to have board-specific prf.conf files

RE: How to have board-specific prf.conf files

Amanda Hsieh — Mon, 19 Aug 2024 16:40:45 GMT

[quote user="mkjones"]My <board>.cong file was in the boards directory, and had the same name as the board. It does not get loaded automatically.[/quote]

It has to add <board>.cong manually in the VS Code. West build would load it automatically.

[quote user="mkjones"]setting CONF_FILE also worked, but the setting never got saved when I closed the build setting window. [/quote]

VS Code would not save it. You have to check the build configuration of VS Code every time.

RE: How to have board-specific prf.conf files

mkjones — Mon, 19 Aug 2024 14:38:50 GMT

My <board>.cong file was in the boards directory, and had the same name as the board. It does not get loaded automatically.

I was able to get it to load my modifying the CACHED_CONF_FILE build settings and adding the board.conf after the prj.conf.

BTW, setting CONF_FILE also worked, but the setting never got saved when I closed the build setting window. So I guess I'll stick with adding it to CACHED_CONF_FILE.

RE: How to have board-specific prf.conf files

Amanda Hsieh — Fri, 16 Aug 2024 12:46:56 GMT

[quote user="mkjones"]I tried putting <board>.conf file in the boards directory, but it still only seemed to pick up the prj.conf (it did not appread to read in the board.conf file).[/quote]

The <board> name should be the same as the board for the building. Could you provide the completed build log via toolbar -> insert -> code?

[quote user="mkjones"](I set that in the build config, right?)[/quote]

Yes, with "-DCONF_FILE=YourExtraConfig.conf".

RE: How to have board-specific prf.conf files

PjGlasso — Thu, 15 Aug 2024 22:40:09 GMT

Nice,

Ok that seems pretty good board wise, You made a folder called boards and named two (board).conf files in there? I saw that in a video webinar I think describing that very scenario.

My situation is the same/similar, I have two boards , One is the DEV board and the other my production board. Same MCU's additional Flash memory an RTC and I2C on board IMU as well as the PDM microphone. optional OLED display also I2C. One push button and one Buzzer , one SPI SD-card 😉

Your close you'll get it.

GL :-) PJ

RE: How to have board-specific prf.conf files

mkjones — Thu, 15 Aug 2024 16:51:12 GMT

I tried putting <board>.conf file in the boards directory, but it still only seemed to pick up the prj.conf (it did not appread to read in the board.conf file).

I'll try out the CONF_FILE setting (I set that in the build config, right?).

RE: How to have board-specific prf.conf files

mkjones — Thu, 15 Aug 2024 16:49:29 GMT

I've got the two build configs (the existing one for the dev. board), and a new one for the new custom board. What I'm trying to do is have a common prj.conf file which is shared with both build configs, plus a board-specific prj.conf file (one for each of the build configs).

I'm not sure an overlay is the right way to go; the dev board has peripherals on it that I only use during development, and I've already got KConfig options for them (which I can enable or disable in the prj.conf file).

RE: How to have board-specific prf.conf files

Amanda Hsieh — Thu, 15 Aug 2024 13:29:01 GMT

Hi,

When the configs are board-specific, you can place them in the boards folder, are named <board>.conf, and they are applied on top of the default Kconfig file for the specified board. Check out the Configuring Kconfig.

You also could use CONF_FILE to pass extra configs. See The Initial Configuration doc.

Regards,
Amanda H.

RE: How to have board-specific prf.conf files

PjGlasso — Wed, 14 Aug 2024 19:26:27 GMT

Hi there,

so If I create a build in NRF_SDK in VScode using the Nrf52840DK board. after it make the build from a sample Blinky that runs I Know on both the DK device and my Xiao Nrf52840 Sense device. I then create a build below it (add Build conf.) and After it completes I can choose the Build All configurations and I have same src built for both boards. Is that what you are asking or did I miss it.?

HTH

GL :-) PJ

I wonder if an overlay is a better way to go because they are similar?