Where is TWI_SCL_M ARDUINO_SCL_PIN defined?

[Dlo123]

I'm using SDK 15.3.0 example twi_scanner with Segger Embedded Studio. I do a search entire solution for TWI_SCL_M and the only location it shows up is in main under the twi_master_init function. I can't find where the file where the #define TWI_SCL_M is located to tell me what pin it is using.

I searched the forum and there seem to be hint of config.h files, but searching the entire SDK 15.3.0 folder didn't yield anything.

Can anyone help?

[Patrick]

Each devkit has a header file that has pin definitions in it located in <SDK Dir>/components/boards/<PCAxxxx>.h

[Dlo123]

Thanks Patrick! I found ARDUINO_SCL_PIN, but no TWI_SCL_M.

I wonder why SES doesn't find it with its search function.

[Patrick]

The only place I am finding TWI_SCL_M defined (pin 3 btw) is in the config.h file located in the twi_master_with_twis_slave example, not the twi_scanner example. Are you trying to combine the two examples?

[Dlo123]

Thanks Patrick! Yes, I was trying to combine the two. Is pin 3 defined in the project itself? The SES search didn't turn up any other location than in main.c for me.

Edit: I found the config.h file in the project folder, just a bit annoyed SES didn't find it in the search.

[awneil]

Dlo123 said:

a bit annoyed SES didn't find it in the search.

Yes - the SES search can be a bit lame.

I think the Nordic folder structure doesn't help: SES seems to assume that the Project will be above all the source files - so it's 'search entire solution' is actually just a 'search the project folder & all folders below"

You have to manually force it to start searching from the top of the SDK folder.

If you want to feed back to Segger about this, go to https://forum.segger.com/index.php/Board/9-SEGGER-Embedded-Studio-related

The other option would be to use the 'Go To Definition' - but that can also fail:

https://devzone.nordicsemi.com/f/nordic-q-a/47870/embedded-studio-go-to-definition-declaration-not-working-for-functions-outside-of-file