Barometer and Ardupilot

Hi,
I'm doing a project and I need to know where the barometer dates are stored on the avr atmega1280 board.
Thank you so much.

The AtMega1280 does not store barometer dates.

A specific adaptation of the 1280 may, with appropriate coding, store barometric data.

You need to tell us if you are using a specific adaptation, and if so, which one, with which code, and with which barometer.

Thank you for your answer.
I'm trying to understand the part of code where the barometer gets the information.

I'm trying to understand the part of code where the barometer gets the information.

The part of what code?