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annotate wiki/Modules.md @ 837:18946846b95b Evo_2_23

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Bugfixes and code cleanup for BF views: BF views gauge and apnoe were using "dive computer" T3 view functions which caused some problem because these legacy views were not intended to work with customer view selection. A switch condition has been added to skip these kind of functions in case a design other T3 is in use. Another potential problem was that there were two definitions for T3 and T7 views which were basically the same. If they wold not be the same the switching functionality wold not work properly. To avoid this problem in futur the arrays have been merged => the view are handled sing the (newer) cv_view arrays instead of the standard_views which were in used before the user could the views which should be shown.
author ideenmodellierer
date Wed, 27 Dec 2023 19:37:17 +0100
parents 0e7c16dd774d
children
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1 # OSTC4 Code Modules #
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2
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3 ## Main CPU - aka CPU1-Discovery ##
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4
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5 For historical reasons, the firmware of the main CPU was divided in three parts.
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6 It helps development, allow smalled upgrades, and improve security as a bad manipulation won't kill the bootloader, responsible fot the next firmware upgrade.
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7
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8 ### Bootloader ##
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9
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10 The code responsible to upload new firmwares for both CPU.
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11
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12 ### Font Pack ###
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13
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14 This module does not contains any code. Just font data and images.
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15
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16 ### Firmware code ###
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17
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18 The main OSTC4 firmware. The more important modules are:
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19
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20 - Buehlmann decompression algorithm.
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21 - VPM decompression algorithm.
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22 - The simulator and dive planner.
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23 - Logbook display (surface and dive mode).
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24 - All user interface code, during dive or surface mode (`t*.c` files).
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25 - Graphics (gfx) engine.
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26 - Plus interface to the other CPU, the management of the _LCD_ screen, and the optional _Bonex_ scooter interface (No longer supported)
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28 ## Small CPU - aka CPU2-RTE ##
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29
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30 The _Real Time_ CPU handle everything that requires precise timming to function perperly.
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31
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32 The most important modules are:
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33
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34 - Real time computation of gas exchanges during dive (aka the _LifeData_ structure).
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35 - Analog to digital conversion for the ... ambient light sensor.
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36 - I2C bus interface to the pressure sensor, the magnetic compass and the battery gauge.
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37 - SPI bus interface to the buttons and to the other CPU.
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38 - Serial interface to the _RS232-over-Wireless_ connection.