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Return to o2 values: In surface mode the custom view will now reset to the o2 sensor display if sensors are connected and no button has been pressed for 20 seconds
author Ideenmodellierer
date Sun, 29 Nov 2020 22:55:31 +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.

**
NOT FINISHED YET... BE PATIENT
**