What is the pin for the battery voltage on nRF52pca1040 DK?

[ndarkness]

Hello,

I would like to instruct my application to read the battery voltage on my nRF52pca1040 DK, I am intending to do so through the SADC.

I will feed the board with the battery that is on its botton side, so I was wondering what is the PIN to read the battery in such a case, looking into pca1040.h doesn't say that pin.

Thanks in advance,

Regards

[ndarkness]

Sorry I did a wrong screen shot, I have updated them. The failure seems to happen when calibrating the SAADC. I have updated the pics

[ndarkness]

just added the pics

[Sigurd]

If you are referring to the saadc_config symbol not found, it could be that is just goes out of scope. It's a chance you could "fix it" by configuring the optimization level in Project Properties(there is "Code Generation Options" under which there is "Optimisation Level"). But if you are not getting any compiler or linking errors, then there's nothing to fix.

I also see that you have removed the RETURN_IF_ERROR statements. I recommend checking all error codes with APP_ERROR_CHECK() in order to detect bugs and errors in your code.

APP_ERROR_CHECK(err_code);

[ndarkness]

I have remove the RETURN_IF_ERROR since they give me compilation errors