Specification of Memory Access, AUTOSAR R22-11, CP, No.1017

Specification of Memory Access, AUTOSAR R22-11, CP, No.1017

AUTOSAR Countdown Calendar 2022

https://qiita.com/advent-calendar/2022/autosar

2022/12/09日の投稿です。

AUTOSARが、今年の版、R22-11公開しました。公開行事の模様は

AUTOSAR R22-11 Release Event 20221208

https://qiita.com/kaizen_nagoya/items/18471d0b340480fdcd42

下記は想定URLです。順次確認中です。

https://www.autosar.org/fileadmin/standards/classic/22-11/AUTOSAR_SWS_MemoryAccess.pdf

間違っていたら、いいね　を押していただいて、コメント欄にご報告くださると幸いです。
編集リクエストが、構造的な変更をしている最中に、構造的な編集リクエストをしていただくと、
何をどう直したらいいかわからなくなってしまいます。自動修復ツールがつくれていません。ごめんなさい。

https://www.autosar.org/

文書は検索してダウンロードすることができます。
クラウドサービスにありがちな、あるのにないかのような検索結果が出ることがあります。

https://www.autosar.org/nc/document-search/

AUTOSAR R22-11 Qiita 記事一覧はこちらに編集中です。

https://qiita.com/kaizen_nagoya/items/11a1654e1e9ec0e4d001

 <この項は書きかけです。順次追記します。>
# 文書変更(Document Change) 

• Renamed MemAcc_MemApiType in MemAcc_MemBinaryHeaderType
• Additional DET checks added
• Updated Configurable Interface chapter
• Corrected Service IDs
• Minor corrections and bugfixes
• Editorial changes

# 用語(terms)
|Terms| Description|
|:--|:--|
|BndM |Bulk Non-Volatile Data Manager
|ECC |Error Correction Code
|FOTA |Firmware Over The Air - remote firmware update using wireless communication
|HSM| Hardware Security Module - dedicated security MCU core
|OTA |Over The Air - general term for wireless communication between OEM backend and vehicle
|RWW |Read While Write - capability of a memory device to perform a read operation in one memory bank while at the same time a write/erase operation takes place in another bank
|SOTA| Software Over The Air - remote software update using wireless communication
|Address Area| Contiguous memory area in the logical address space Typically multiple physical memory sectors are combined to one logical address area.
|Bank |Group of sector batches. In case a memory technology is segmented in sectors, a bank is an instance of a sector batch group in which no read-while-write operation is permitted. In case of a flash memory device, this typically maps to an individual flash controller.
|Job Request| Memory access request by an upper layer module for an address area.
|Memory Device| Group of banks
|Page Burst |Aggregated access of memory pages for improved performance In case a memory device technology has a physical segmentation, some memory devices provide an optimized access method to read or write multiple pages at a time. Page burst denotes the aggregation of memory pages used for the access optimization.
|Read Page| Smallest readable unit of a memory device (in bytes) Some memory device technologies must be accessed considering a physical segmentation. Hence a byte-wise access is not possible for all memory device technologies. This term defines the minimum size that needs to be read in one access.
|Sector| Smallest erasable memory unit (in bytes) Some memory device technologies require an explicit physical erase operation before the memory can be written. A sector defines the minimum size of such an erase unit. Depending on the memory device, sectors can be either uniform- or variable-sized.
|Sector Batch| Aggregation of sectors with uniform size Logical aggregation of contiguous sectors with the same size.
|Sector Burst| Aggregation of sectors for improved erase performance In case a memory technology needs a physical erase operation, some devices provide an erase performance optimization by erasing an aggregation of sectors in one step.
|Sub Address| Area Contiguous memory area in the logical address space mapped to a sector batch of one memory device.
|Write Page| Smallest writeable unit of a memory device (in bytes) Some memory device technologies must be accessed considering a physical segmentation. Hence a byte-wise access is not possible for all memory device technologies. This term defines the minimum size that needs to be written in one access.


## 英日
日本語は仮訳

T.B.D.

# 参考(reference)
[1] Glossary, AUTOSAR_TR_Glossary
https://www.autosar.org/fileadmin/standards/foundation/22-11/AUTOSAR_TR_Glossary.pdf
[2] General Specification of Basic Software Modules
AUTOSAR_SWS_BSWGeneral
[3] Requirements on Memory Hardware Abstraction Layer
AUTOSAR_SRS_MemoryHWAbstractionLayer
[4] General Requirements on Basic Software Modules
AUTOSAR_SRS_BSWGeneral
[5] Requirements on AUTOSAR Features
AUTOSAR_RS_Features



# Countdown Calendar 2022

今年企画した6つのCountdown Calendarと、それぞれの記事一つをご紹介します。

AUTOSAR Countdown Calendar 2022

https://qiita.com/advent-calendar/2022/autosar

AUTOSAR References to ISO, IEC, ITU, IEEE, RFC and SEA etc.

https://qiita.com/kaizen_nagoya/items/d7d252211e10a79516df

Automotive Handbook Countdown Calendar 2022

https://qiita.com/advent-calendar/2022/automotivehandbook

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


2022 いいねをいただいた記事ランキング(O.K.版) Countdown Calendar 2022

https://qiita.com/advent-calendar/2022/goods

2022年１月下旬　いいねをいただいた記事　16

https://qiita.com/kaizen_nagoya/items/0ee589a8edaeab24fd2a

CDCale(O.K.) Countdown Calendar 2022

https://qiita.com/advent-calendar/2022/adventcalendar2022

「会議は15分未満」に。小耳にはさんだ話。

https://qiita.com/kaizen_nagoya/items/510c47c5d1e8d03145db

ABC language (O.K.版） Advent Calendar 2022

https://qiita.com/advent-calendar/2022/abc_ok

LLVMソースコードのコンパイルをしようと思ってハマった罠とそこから脱出するための努力

https://qiita.com/kaizen_nagoya/items/16f270e42b947756ced3

ABC maker(O.K版） Advent Calendar 2022

https://qiita.com/advent-calendar/2022/abcmaker

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


CountdownCalendar2022 報告

https://qiita.com/kaizen_nagoya/items/5b4b99cb9ad571f4094b


# 関連文書(Related document)

AUTOSAR Abstract Platformへの道（詳細編）

https://qiita.com/kaizen_nagoya/items/cb217133884fa0a2c704

2023年1月　記事数一覧

https://qiita.com/kaizen_nagoya/items/78153968c5de76a7fd83

年末100記事を30点に仕上げる。

https://qiita.com/kaizen_nagoya/items/3ffdc82caee3a325d1d7

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https://qiita.com/kaizen_nagoya/items/1fee270be00ef90ca4ec


三方良し　Udemy 車載LAN入門講座 CAN通信編

https://qiita.com/kaizen_nagoya/items/bed038c52510fea72c0a


詳解 車載ネットワーク CAN, CAN FD, LIN, CXPI, Ethernetの仕組みと設計のために(1) 著者　 ＜エンジニア夏休み企画 読書感想文＞

https://qiita.com/kaizen_nagoya/items/e9971698a108c3dba794

詳解 車載ネットワーク CAN, CAN FD, LIN, CXPI, Ethernetの仕組みと設計のために(2)参考文献 ＜エンジニア夏休み企画>【読書感想文】

https://qiita.com/kaizen_nagoya/items/e156cbdd5fce9263776e

詳解 車載ネットワーク CAN、CAN FD、LIN、CXPI、Ethernetの仕組みと設計のために

https://qiita.com/kaizen_nagoya/items/44a9e6b0f5363b4a5b35

AUTOSAR Abstract Platform User Group Weekly Report(1) 2022.1.8

https://qiita.com/kaizen_nagoya/items/fece4f7719ef55d612bf

AUTOSAR Abstract Platform User Group Weekly Report(2) 2022.1.15

https://qiita.com/kaizen_nagoya/items/6f1168a36e795976a906

# 更新資料　Abstract Platform, Vehicle Modelへの対応版
Specification of Memory Access, No.1017, CP, AUTOSAR R22-11 新

https://qiita.com/kaizen_nagoya/items/5eb5b76b4a50b15745ed
 ＜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。＞

# 文書履歴(document history)
ver. 0.01 初稿 20221208
ver. 0.02 URL追記　20230101
ver. 0.03 URL追記　20230127