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Disable GNSS operations using compile switch: GNSS IO operation caused the RTE to not switch into sleep mode in case of wrong HW version => Operations have been disabled by inactive ENABLE_GNSS compile switch
author Ideenmodellierer
date Thu, 03 Oct 2024 20:25:49 +0200
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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
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