Specification of PDU Router, AUTOSAR 35, 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_PDURouter.pdf

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

R21-11
https://www.autosar.org/fileadmin/standards/R22-11/CP/AUTOSAR_SWS_PDURouter.pdf

R20-11
https://www.autosar.org/fileadmin/standards/R22-11/CP/AUTOSAR_SWS_PDURouter.pdf

R19-11
https://www.autosar.org/fileadmin/standards/R22-11/CP/AUTOSAR_SWS_PDURouter.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。Foundation, CAN OSEK/VDXのClassic Platform, Ethernet/TCP/IP POSIXのAdaptive Platform.

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

Classic Platform Release Overview, AUTOSAR No.0 ,R23-11, CP
https://qiita.com/kaizen_nagoya/items/9d22c8722cbc0f42b137

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) 
>• Sequence diagram chapters for TP Gatewaying have been improved
• Editorial changes
# 用語(terms)

|term|Description|
|:--|:--|
|Upper Layer Modules(Up)|Modules above the PDU Router. This layer usually includes Com and Diagnostic Communication Manager (Dcm).
|Lower Layer Modules(Lo)|Modules below the PDU Router. This layer may include CAN, LIN, FlexRay, Ethernet Communication Interface modules and the respective TP modules.
|PDU Router| Module that transfers I-PDUs from one module to another module. The PDU Router module can be utilized for gateway operations and for internal routing purposes.
|on-the-fly gatewaying|Gateway capability; routing between two TP modules where forwarding of data is started (when a specified threshold is reached) before all data have been received. If larger amount of data is transported between two interfaces it is desirable to be able to start the transmission on the destination network before receiving all data from the source network. This saves memory and time.
|multicast operation| Simultaneous transmission of PDUs to a group of receivers, i.e. 1:n routing.
|data provision| Provision of data to interface modules. (a) direct data provision: data to be transmitted are provided directly at the transmit request. The destination Communication Interface may behave in two ways, either copy the data directly or defer the copy to a trigger transmit. (b) trigger transmit data provision: data to be transmitted are not provided at the transmit request, but will be retrieved by the Communication Interface module via a callback function.
|last-is-best buffering|Buffering strategy where the latest value overwrites the last value.
|FIFO buffering| Buffer concept, which uses first in first out strategy.
|I-PDU ID |I-PDU Identifier.
|I-PDU |Interaction Layer PDU. An I-PDU consists of data (buffer), length and I-PDU ID. The PDU Router will mainly route I-PDUs (exception is on-the-fly gatewaying).
|N-PDU| Network Layer PDU. Used by Transport Protocol modules to fragment an I-PDU.
|L-PDU| Data Link Layer PDU. One or more I-PDUs are packed into one L-PDU. The L-PDU is busspecific, e.g. CAN frame.
|SF| Single Frame, Transport Protocol term.
|FF| First Frame, Transport Protocol term.
|CF| Consecutive Frame, Transport Protocol term.
|PDU| Protocol Data Unit.
|BSW| Basic Software.
|<SrcLo>| Lower layer Communication Interface module acting as a source of the I-PDU. The SrcLo is always one.
|<DstLo>| Lower layer Communication Interface module acting as a destination of the I-PDU. The DstLo may by one to many.
|<SrcLoTp>| Lower layer Transport Protocol module acting as a source of the I-PDU. The SrcLoTp is always one.
|<DstLoTp>| Lower layer Transport Protocol module acting as a destination of the I-PDU. The DstLoTp may by one to many.
|<Lo> |Lower layer communication interface module.
|<Up> |Upper layer Communication Interface and/or Transport Protocol module.
|<LoTp>| Lower layer Transport Protocol module.
|<module>| Any type of module <...>.

# 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] Layered Software Architecture AUTOSAR_CP_EXP_LayeredSoftwareArchitecture
[2] General Specification of Basic Software Modules AUTOSAR_CP_SWS_BSWGeneral
[3] Requirements on Gateway AUTOSAR_CP_SRS_Gateway
[4] Specification of I-PDU Multiplexer AUTOSAR_CP_SWS_IPDUMultiplexer
[5] List of Basic Software Modules AUTOSAR_CP_TR_BSWModuleList
[6] Specification of ECU Configuration AUTOSAR_CP_TPS_ECUConfiguration
[7] Specification of Communication Stack Types AUTOSAR_CP_SWS_CommunicationStackTypes
[8] Guide to BSW Distribution AUTOSAR_CP_EXP_BSWDistributionGuide

## 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 　20240122
### 最後までおよみいただきありがとうございました。
いいね　💚、フォローをお願いします。
#### Thank you very much for reading to the last sentence.
Please press the like icon 💚　and follow me for your happy life.