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Icon upload: added icon size check: The size of the icon is limited to 128k. To avoid overwritten data (font would no longer be shown correct) in case a larger icon is send, a size check has been added before floshing the icon.
author Ideenmodellierer
date Sat, 03 Jan 2026 20:42:09 +0100
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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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