AUTOSAR R20-11版软件组件模板规范

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本文档是AUTOSAR (Automotive Open System Architecture) R20-11版本中的"SoftwareComponentTemplate"模板，它提供了在AUTOSAR Classic Platform上设计和实现软件组件的标准指南。该模板旨在确保软件组件的开发、集成和维护符合AUTOSAR架构的要求，适用于汽车电子系统的软件开发。文档主要关注以下几个方面： 1. **In-place Strategy for Array DataType**: 在R20-11版本中，引入了数组数据类型在内存中的内联存储策略，这有助于提高性能和内存管理效率，特别是对于那些大小可变或频繁使用的数组。 2. **New Service Use Cases**: 新增的服务用例支持反映了对更复杂功能的需求和场景的理解，这有助于开发者更好地规划和实现服务之间的交互与协作，从而提升整个系统的灵活性和功能完整性。 3. **Optimization of ReturnType for RTE**: 返回类型优化针对运行时环境(RTE, Runtime Environment)进行了改进，可能涉及减少内存开销，提高计算效率，或者简化接口设计，使组件之间的通信更加高效。 4. **API Changes and Minor Adjustments**: 在此版本中，对API进行了修订，包括一些修正和澄清，以及编辑上的改进。这些调整确保了API的稳定性、一致性，并可能提升了其易用性和文档清晰度。 5. **Support for Optimized Access to Coding Data**: 提供了对编码数据访问的优化，可能是通过更高效的内存访问路径或缓存机制，提高了代码执行效率。 6. **Application-Level Metadata Support**: 应用级别的元数据支持有助于软件组件更好地理解和管理，比如组件间的依赖关系、配置选项等，增强了系统整体的可扩展性和维护性。 7. **Bitfield Storage in NvRAM Optimization**: 对非易失性随机存取存储器(NvRAM)中位字段的存储进行了优化，考虑到了电池供电设备的存储需求，延长了设备的离线工作时间。 8. **Document Status Update**: 从最初的状态（Final）变为已发布的状态，表明文档已经通过了审查并准备好供广大开发者使用。总体而言，本资源是AUTOSAR R20-11版本的重要参考资料，对于遵循AUTOSAR标准开发软件组件的工程师来说，它提供了一个清晰的指导框架，帮助他们创建模块化、可重用且符合行业最佳实践的汽车电子系统软件。

Software Component Template

AUTOSAR CP R20-11

11.5.3 Software-Components using NVRAM data of NvBlockCom-

ponents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 687

11.5.4 Software-Components connected to NvBlockComponents . . 690

11.5.5 NvBlockDescriptor . . . . . . . . . . . . . . . . . . . . . . . . 692

11.5.5.1 Writing Strategies . . . . . . . . . . . . . . . . . . . . 695

11.5.5.2 NvBlockNeeds . . . . . . . . . . . . . . . . . . . . . 702

11.5.5.3 RAM Block and ROM Block . . . . . . . . . . . . . . 704

11.5.5.4 NvBlockDataMapping . . . . . . . . . . . . . . . . . 705

11.5.5.5 Client Server Ports . . . . . . . . . . . . . . . . . . . 713

11.5.6 BulkNvDataDescriptor . . . . . . . . . . . . . . . . . . . . . . 714

11.5.7 SwcInternalBehavior of an NvBlockSwComponentType . . . 717

12 Software Component Documentation 721

13 Service Dependencies and Service Use Cases 725

13.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 725

13.2 NvM Service Dependencies . . . . . . . . . . . . . . . . . . . . . . . . 725

13.2.1 Nvm Use Case: Permanent RAM Block . . . . . . . . . . . . 726

13.2.2 Nvm Use Case: Temporary RAM Block . . . . . . . . . . 727

13.2.3 Nvm Use Case: RAM Block with explicit synchronization us-

ing Mirror Interfaces . . . . . . . . . . . . . . . . . . . . . . . 728

13.2.4 NVM Use Case: Software-Components using Nv Data pro-

vided by NvBlockSwComponentType (not ServiceSwCompo-

nent of NvM) . . . . . . . . . . . . . . . . . . . . . . . . . . . 729

13.3 Watchdog Service Dependencies . . . . . . . . . . . . . . . . . . . . . 730

13.3.1 Watchdog Service use Case: Local Supervision . . . . . . . 730

13.3.2 Watchdog Service use Case: Global Supervision Status no-

tification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 732

13.3.3 Watchdog Service use Case: Control global supervision or

get global supervision status . . . . . . . . . . . . . . . . . . 733

13.3.4 Watchdog Service use Case: Software-component wants to

obtain the status of a local supervision . . . . . . . . . . . . 734

13.3.5 Watchdog Service use Case: Software-component wants to

report a checkpoint . . . . . . . . . . . . . . . . . . . . . . . 734

13.4 COM Manager Service Needs . . . . . . . . . . . . . . . . . . . . . . . 735

13.4.1 ComM Use Case: read current ComM Mode . . . . . . . . . 735

13.4.2 ComM Use Case: request ComM Mode . . . . . . . . . . . . 736

13.4.3 ComM Use Case: Software-Component acts as a Mode

Manager that influences the ECU State . . . . . . . . . . . . 736

13.4.4 Read PNC ComM Mode . . . . . . . . . . . . . . . . . . . . 737

13.5 ECU State Manager Service Needs . . . . . . . . . . . . . . . . . . . . 737

13.5.1 EcuM Use Case: select Shutdown Target . . . . . . . . . . . 738

13.5.2 EcuM Use Case: select Boot Target . . . . . . . . . . . . . . 738

13.5.3 EcuM Use Case: use Alarm Clock . . . . . . . . . . . . . . . 738

13.6 BswM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 739

13.6.1 Partial Networking . . . . . . . . . . . . . . . . . . . . . . . . 739

13.6.2 Mode Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 740

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Software Component Template

AUTOSAR CP R20-11

13.6.3 Mode User . . . . . . . . . . . . . . . . . . . . . . . . . . . . 742

13.6.4 Mode Requester . . . . . . . . . . . . . . . . . . . . . . . . . 742

13.7 Crypto Service Dependencies . . . . . . . . . . . . . . . . . . . . . . . 743

13.7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 743

13.7.2 Crypto Service Use Cases . . . . . . . . . . . . . . . . . . . 745

13.7.2.1 Crypto Service Use Case: Hash calculation . . . . . 745

13.7.2.2 Crypto Service Use Case: MAC calculation . . . . . 746

13.7.2.3 Crypto Service Use Case: MAC verification . . . . . 746

13.7.2.4 Crypto Service Use Case: generation of random

numbers . . . . . . . . . . . . . . . . . . . . . . . . . 747

13.7.2.5 Crypto Service Use Case: Encryption with Authenti-

cated Encryption with Associated Data (AEAD) . . . 747

13.7.2.6 Crypto Service Use Case: Decryption with Authenti-

cated Encryption with Associated Data (AEAD) . . . 748

13.7.2.7 Crypto Service Use Case: encryption . . . . . . . . 748

13.7.2.8 Crypto Service Use Case: decryption . . . . . . . . 749

13.7.2.9 Crypto Service Use Case: signature generation . . . 750

13.7.2.10 Crypto Service Use Case: signature verification . . . 750

13.7.2.11 Crypto Service Use Case: usage of key management 751

13.7.3 Crypto Service Job Use Cases . . . . . . . . . . . . . . . . . 751

13.7.3.1 Crypto Service Use Case: usage of job API to set

key valid . . . . . . . . . . . . . . . . . . . . . . . . . 751

13.7.3.2 Crypto Service Use Case: usage of job API to create

a random seed . . . . . . . . . . . . . . . . . . . . . 752

13.7.3.3 Crypto Service Use Case: usage of job API to gen-

erate a key . . . . . . . . . . . . . . . . . . . . . . . 752

13.7.3.4 Crypto Service Use Case: usage of job API to derive

a key . . . . . . . . . . . . . . . . . . . . . . . . . . . 753

13.7.3.5 Crypto Service Use Case: usage of job API to exe-

cute calculation of the public value for key exchange 753

13.7.3.6 Crypto Service Use Case: usage of job API to exe-

cute calculation of shared secret for key exchange . 754

13.7.3.7 Crypto Service Use Case: usage of job API to exe-

cute certificate parsing . . . . . . . . . . . . . . . . . 755

13.7.3.8 Crypto Service Use Case: usage of job API to exe-

cute certificate verification . . . . . . . . . . . . . . . 755

13.7.4 Crypto Key Management Use Cases . . . . . . . . . . . . . 756

13.7.4.1 KeyM Service Use Case: Software-Component

wants check a certificate on KeyM . . . . . . . . . . 756

13.7.4.2 KeyM Service Use Case: Software-Component

wants to retrieve a certificate from KeyM . . . . . . . 757

13.7.4.3 KeyM Service Use Case: Software-Component

wants to retrieve elements of a certificate from KeyM 757

13.7.4.4 KeyM Service Use Case: Software-Component

wants to check the existence of a certificate from KeyM758

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Software Component Template

AUTOSAR CP R20-11

13.7.4.5 KeyM Service Use Case: Software-Component

wants to store a (derived) key in KeyM . . . . . . . . 758

13.7.4.6 KeyM Service Use Case: Software-Component

wants to store a container with (encrypted) keys in

KeyM . . . . . . . . . . . . . . . . . . . . . . . . . . 759

13.7.4.7 KeyM Service Use Case: Software-Component

wants to verify if cr yptographic operation was exe-

cuted using a specific key . . . . . . . . . . . . . . . 759

13.8 Diagnostic Service Dependency . . . . . . . . . . . . . . . . . . . . . . 760

13.8.1 Development Approach . . . . . . . . . . . . . . . . . . . . . 760

13.8.2 Function Inhibition Needs . . . . . . . . . . . . . . . . . . . . 762

13.8.2.1 Function Inhibition Manager Service use Case: read

function permission . . . . . . . . . . . . . . . . . . . 763

13.8.2.2 Function Inhibition Manager Use Case: react on sup-

pressed or unavailable events . . . . . . . . . . . . . 764

13.8.3 Diagnostic Event Needs . . . . . . . . . . . . . . . . . . . . . 764

13.8.3.1 Dem Service Use Case: diagnostic monitor, de-

bouncing by Dem . . . . . . . . . . . . . . . . . . . . 775

13.8.3.2 Dem Service Use Case: diagnostic monitor, de-

bouncing by SWC . . . . . . . . . . . . . . . . . . . 776

13.8.3.3 Dem Service Use Case: software-component pro-

vides information about operation cycles . . . . . . . 776

13.8.3.4 Dem Service Use Case: software-component en-

ables reporting of DTCs in general . . . . . . . . . . 777

13.8.3.5 Dem Service Use Case: software-component en-

ables storage of subsequent DTCs . . . . . . . . . . 777

13.8.3.6 Dem Service Use Case: retrieve information of the

lamp status . . . . . . . . . . . . . . . . . . . . . . . 778

13.8.3.7 Dem Service Use Case: DEM provides information

that the fault storage overflows . . . . . . . . . . . . 779

13.8.3.8 Dem Service Use Case: software-component sup-

presses the storage of DTCs . . . . . . . . . . . . . 780

13.8.3.9 Dem Service Use Case: software-component in-

forms that the PTO is active . . . . . . . . . . . . . . 780

13.8.3.10 Dem Service Use Case: software-component needs

information about any DTC status change . . . . . . 781

13.8.3.11 Dem Service Use Case: call operation if the data of

a given diagnostic event changes (I) . . . . . . . . . 781

13.8.3.12 Dem Service Use Case: call operation if the data or

status of any diagnostic event changes (II) . . . . . . 782

13.8.3.13 Dem Service Use Case: software-component pro-

vides data for diagnostic purposes . . . . . . . . . . 783

13.8.3.14 Dem Service Use Case: software-component gets

information about a specific DTC . . . . . . . . . . . 783

13.8.3.15 Dem Service Use Case: Software-Component wants

to be triggered on Monitor Status Changes . . . . . 784

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Software Component Template

AUTOSAR CP R20-11

13.8.3.16 Dem Service Use Case: write parameter identifier by

software-component . . . . . . . . . . . . . . . . . . 784

13.8.3.17 Dem Ser vice Use Case: read parameter identifier by

software-component . . . . . . . . . . . . . . . . . . 785

13.8.3.18 Dem Service Use Case: diagnostic monitor provides

monitor data, debouncing by Dem . . . . . . . . . . 786

13.8.3.19 Dem Service Use Case: diagnostic monitor provides

monitor data, debouncing by software-component . . 786

13.8.3.20 Dem Service Use Case: software-component

checks whether an event is suppressed . . . . . . . 787

13.8.4 Diagnostic Communication Needs . . . . . . . . . . . . . . . 788

13.8.4.1 Dcm Service Use Case: read/write current values by

Client Server Interface . . . . . . . . . . . . . . . . . 793

13.8.4.2 Dcm Service Use Case: read/write current values of

specific DID by Client Server Interface . . . . . . . . 794

13.8.4.3 Dcm Service Use Case: read/write current values by

Sender Receiver Interface or Nv Data Interface . . . 795

13.8.4.4 Dcm Service Use Case: start/stop or request routine

results . . . . . . . . . . . . . . . . . . . . . . . . . . 795

13.8.4.5 Dcm Service Use Case: IO control by Client Server

Interface . . . . . . . . . . . . . . . . . . . . . . . . . 796

13.8.4.6 Dcm Service Use Case: IO control by Sender Re-

ceiver Interface . . . . . . . . . . . . . . . . . . . . . 797

13.8.4.7 Dcm Service Use Case: Access to protocol, session

and security information . . . . . . . . . . . . . . . . 800

13.8.4.8 Dcm Service Use Case: Verify the access to security

level . . . . . . . . . . . . . . . . . . . . . . . . . . . 800

13.8.4.9 Dcm Service Use Case: multiple testers access one

ECU . . . . . . . . . . . . . . . . . . . . . . . . . . . 801

13.8.4.10 Dcm Service Use Case: Service Request Notification 801

13.8.4.11 Dcm Service Use Case: read/write and IOCtrl cur-

rent values by Client Server Interface . . . . . . . . . 802

13.8.4.12 Dcm Service Use Case: A software-component acts

as a "file server" to a diagnostic tester . . . . . . . . 803

13.8.5 OBD related Needs . . . . . . . . . . . . . . . . . . . . . . . 804

13.8.5.1 Dem Service Use Case: In-Use-Monitor Perfor-

mance Ratio calculation . . . . . . . . . . . . . . . . 808

13.8.5.2 Dcm Service Use Case: read parameter identifier via

diagnostic services by Client Server Interface . . . . 809

13.8.5.3 Dcm Service Use Case: read parameter identifier via

diagnostic services by Sender Receiver Interface . . 809

13.8.5.4 Dcm Service Use Case: Request vehicle information 810

13.8.5.5 Dem Service Use Case: Read DTR data from SW-C

for OBD Service $06 . . . . . . . . . . . . . . . . . . 811

13.8.5.6 Dcm Service Use Case: request control of on-board

system, test or component . . . . . . . . . . . . . . . 812

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Software Component Template

AUTOSAR CP R20-11

13.8.5.7 Dem Service Use Case: In-Use-Monitoring Perfor-

mance Ratio Denominator interface . . . . . . . . . 812

13.8.6 Diagnostics over IP . . . . . . . . . . . . . . . . . . . . . . . 813

13.8.6.1 DoIP Service Use Case: GID synchronization can

be necessary if the ECU is DoIP Gid synchronization

master . . . . . . . . . . . . . . . . . . . . . . . . . . 816

13.8.6.2 DoIP Service Use Case: Vehicle information is

broadcast or can be requested by the tester . . . . . 817

13.8.6.3 DoIP Service Use Case: Tester could also request

the power status with respect to diagnostics . . . . . 817

13.8.6.4 DoIP Service Use Case: Routing activation mech-

anism is used which can lead to additional impact

regarding authentication or confirmation . . . . . . . 818

13.8.6.5 DoIP Service Use Case: a DoIP entity needs to be

informed when an external tester is attached or acti-

vated. . . . . . . . . . . . . . . . . . . . . . . . . . . 818

13.8.6.6 Service Use Case: Set and reset Warning Indicator

Request bit . . . . . . . . . . . . . . . . . . . . . . . 819

13.8.6.7 DoIP Service Use Case: Atomic Software-

Component provides the further action byte to

the DoIP Service Component . . . . . . . . . . . . . 820

13.8.7 Miscellaneous Diagnostic Service Use-Cases . . . . . . . . 821

13.8.7.1 Dcm Service Use Case: DiagnosticSessionControl . 821

13.8.7.2 Dcm Service Use Case: EcuReset . . . . . . . . . . 821

13.8.7.3 Dcm Service Use Case: EcuReset ModeRapidPow-

erShutDown . . . . . . . . . . . . . . . . . . . . . . . 822

13.8.7.4 Dcm Service Use Case: CommunicationControl . . . 822

13.8.7.5 Dcm Service Use Case: ControlDTCSetting . . . . . 823

13.8.7.6 Dcm Service Use Case: Response On Event via di-

agnostic services . . . . . . . . . . . . . . . . . . . . 823

13.8.7.7 Dcm Service Use Case: SecurityAccess . . . . . . . 824

13.8.7.8 Service Use Case: Atomic Software-Component im-

plements a Hardware Shutdown . . . . . . . . . . . 825

13.8.7.9 Service Use Case: Upload and download of data . . 825

13.9 Diagnostic Log and Trace Dependency . . . . . . . . . . . . . . . . . . 826

13.9.1 Dlt use Case:Application software component transmits de-

bug information . . . . . . . . . . . . . . . . . . . . . . . . . 827

13.10 Synchronized Time-Base Manager Dependency . . . . . . . . . . . . . 827

13.10.1 StbM Use Case: start timer and potentially get notified about

its expiration . . . . . . . . . . . . . . . . . . . . . . . . . . . 828

13.10.2 StbM Use Case: Software-Components wants to get notifi-

cations of status changes . . . . . . . . . . . . . . . . . . . . 829

13.10.3 StbM Use Case: Process time snapshot obtained from global

time slave for diagnostics purposes . . . . . . . . . . . . . . 830

13.10.4 StbM Use Case: Software-component represents a global

time master . . . . . . . . . . . . . . . . . . . . . . . . . . . . 830

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