Specification of EEPROM Abstraction, AUTOSAR 287, R23-11, CP


AUTOSARが2023年版、R(Release)23-11を公開しました。
https://www.autosar.org/fileadmin/standards/R23-11/CP/AUTOSAR_CP_SWS_EEPROMAbstraction.pdf

R22-11
https://www.autosar.org/fileadmin/standards/R22-11/CP/AUTOSAR_SWS_EEPROMAbstraction.pdf


R21-11
https://www.autosar.org/fileadmin/standards/R21-11/CP/AUTOSAR_SWS_EEPROMAbstraction.pdf

R20-11
https://www.autosar.org/fileadmin/standards/R20-11/CP/AUTOSAR_SWS_EEPROMAbstraction.pdf

R19-11
https://www.autosar.org/fileadmin/standards/R19-11/CP/AUTOSAR_SWS_EEPROMAbstraction.pdf

文書は検索してダウンロードできます。
https://www.autosar.org/


<この項は書きかけです。順次追記します。>
This article is not completed. I will add some words in order.

# Release Overviews
AUTOSARには現在3つの分類があります。CAN OSEK/VDXのClassic Platformと, Ethernet/TCP/IP POSIXのAdaptive Platformと、両者の共通部分のFoundationです。


Classic Platform Release Overview, AUTOSAR 0,　R23-11, CP
https://qiita.com/kaizen_nagoya/items/9d22c8722cbc0f42b137

Foundation Release Overview, AUTOSAR 781, R23-11, FO
https://qiita.com/kaizen_nagoya/items/f249bdb8c313d8bff883

Adaptive Platform Release Overview, AUTOSAR 782, R23-11, AP
https://qiita.com/kaizen_nagoya/items/13a104606a34fe24fcf7

# Qiita 記事一覧
Autosar Foundation R23-11 一覧
https://qiita.com/kaizen_nagoya/items/c30674cb2dac2fcbbd04

AUTOSAR Adaptive Platform R23-11一覧
https://qiita.com/kaizen_nagoya/items/1dece8799a730367b0dc

Autosar Classic Platform R23-11 一覧
https://qiita.com/kaizen_nagoya/items/f770f6c2906e1dcbf180


# 文書変更(Document Change) 
>• Editorial Changes
# 用語(terms)

|term|Description|
|:--|:--|
|Address Area| Contiguous memory area in the logical address space Typically multiple physical memory sectors are combined to one logical address area.
|EA| EEPROM Abstraction
|EEPROM |Electrically Erasable and Programmable ROM (Read Only Memory)
|FEE| Flash EEPROM Emulation
|LSB| Least significant bit / byte (depending on context). Here it’s bit.
|Mem| Memory Driver
|MemAcc |Memory Access
|MemIf| Memory Abstraction Interface
|MSB |Most significant bit / byte (depending on context). Here it’s bit.
|NvM |NVRAM Manager
|NVRAM| Non-volatile RAM (Random Access Memory)
|NVRAM block |Management unit as seen by the NVRAM Manager 
|(Logical) block |Smallest writable / erasable unit as seen by the modules user. Consists of one or more virtual pages.
|Virtual page| May consist of one or several physical pages to ease handling of logical blocks and address calculation.
|Internal residue| Unused space at the end of the last virtual page if the configured block size isn’t an integer multiple of the virtual page size (see Figure 2).
|Virtual address| Consisting of 16 bit block number and 16 bit offset inside the logical block.
|Physical address|Address information in device specific format (depending on the underlying EEPROM driver and device) that is used to access a logical block.
|Dataset |Concept of the NVRAM manager: A user addressable array of blocks of the same size. E.g. could be used to provide different configuration settings for the CAN driver (CAN IDs, filter settings, …) to an ECU which has otherwise identical application software (e.g. door module).
|Redundant copy |Concept of the NVRAM manager: Storing the same information twice to enhance reliability of data storage.
# References

Glossaryも掲載しましょう。
https://www.autosar.org/fileadmin/standards/R23-11/FO/AUTOSAR_FO_TR_Glossary.pdf

[1] General Specification of Basic Software Modules AUTOSAR_CP_SWS_BSWGeneral
[2] Requirements on Memory Hardware Abstraction Layer AUTOSAR_CP_SRS_MemoryHWAbstractionLayer


## 補足資料（Additions）
祝休日・謹賀新年：2024年の目標
https://qiita.com/kaizen_nagoya/items/b659d922327a7dcdc898

2023 Countdown Calendar 主催・参加一覧
https://qiita.com/kaizen_nagoya/items/c4c2f08ac97f38d08543

CountDownCalendar月間　いいねをいただいた記事群　views　順
https://qiita.com/kaizen_nagoya/items/583c5cbc225dac23398a

Countdown Calendar 2023, 百記事目を書くにあたって。
https://qiita.com/kaizen_nagoya/items/45185a04cfd88b71256a

1年間をまとめた「振り返りページ」＠２０２３
https://qiita.com/kaizen_nagoya/items/bcd1ebd49d3a9e8c7a90

AUTOSAR 文書番号
https://qiita.com/kaizen_nagoya/items/8b894228a0b76c2265c7

AUTOSAR R23-11 記憶の記録
https://qiita.com/kaizen_nagoya/items/701bc800b5f137e51a36

AUTOSAR Countdown Calendar 2023
https://qiita.com/advent-calendar/2023/autosar

AUTOSAR Abstract Platformへの道 R22-11
https://qiita.com/kaizen_nagoya/items/8ac2826635a8c536c7ec

自動車　記事　１００
https://qiita.com/kaizen_nagoya/items/f7f0b9ab36569ad409c5

Basic principles, ボッシュ自動車handbook(英語)11版まとめ<2>
https://qiita.com/kaizen_nagoya/items/24a1ba5da3d09b2a95d1

JAXA/IPA クリティカルソフトウェアワークショップ WOCS言語関連発表(改定版)
https://qiita.com/kaizen_nagoya/items/4789832baf494cb74626

＜この記事は個人の過去の経験に基づく個人の感想です。現在所属する組織、業務とは関係がありません。＞
This article is an individual impression based on the individual's experience. It has nothing to do with the organization or business to which I currently belong.


# 文書履歴(document history)
ver. 0.01 初稿 　20240127
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