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GNSS improvments: - Introduce alive indicator; Status string will switch between white and grey with every message received from the module - shorten visibility of "shutting down" string. a busy wait of 1 second was applied in the sleep prepare function. The time is now included in the time needed to prepare the module for low power operation - make sure GPIO is properly initialized after deep sleep
author Ideenmodellierer
date Thu, 12 Dec 2024 21:12:07 +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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