view wiki/Detailed CPU1-Upper Project.md @ 698:2c2b9c6eb089

Bugfix Empty menu: In previous version an empty menu was shown sporadically. After pressing back button the menu was shown correctly again. Potential root cause is the call of the Set Top/Bottom Frame function while updating the cursor position. To handle multible updated is previous toggle bugger has been changed into a ringbuffer allowing to send several update frames after each other. Beside this some old debug code has been removed.
author Ideenmodellierer
date Sun, 25 Sep 2022 21:13:45 +0200
parents 5f11787b4f42
children
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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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