view wiki/Detailed CPU1-Upper Project.md @ 1073:734f84b72b30 Icon_Integration tip

CV Option Menu added sub menus for O2 and CO2 sensors: In the previous implementation by the external sensor menu the problem exists that only three sensor could be displayed. If three o2 sensors were active then the CO2 sensor was not accessible. With the new dynamic view the CO2 sensor is a standalone menu element. The three sensor view was reused from the external sensor menu by introducing a filter (sensor type) functionality. O" and CO2 sensors may now be calibrated using the cv option sub menus.
author Ideenmodellierer
date Fri, 20 Feb 2026 17:26:46 +0100
parents 5f11787b4f42
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# How to Create From Scratch a Project for _CPU1-Upper_ Code #

The main CPU (aka. _CPU1 Discovery_) firmware is splitted in two parts:
- The proper _CPU1 Discovery_ firmware, with the main code.
- The _protected upper memory_ firmware, which is programmed during _OSTC4_ production, and contains (amongst other things) code used to upload and install firmware upgrades.

## Make a specific project ##

Follow the same procedure than for [CPU1-Discovery](Detailed CPU1-Discovery Project.md), (same processor, same includes) but include the `CPU1-Upper` source directory.

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NOT FINISHED YET... BE PATIENT
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