FordMsg2FDBusHiSpd_MDD

Module Design Document

For

FordMsg2FDBusHiSpd

24-Apr-2018

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

Software Group,

Nexteer Automotive,

Saginaw, MI, USA
Change History

DescriptionAuthorVersionDate
Initial VersionMrudula Paturi124-Apr-2018


Table of Contents

1 Introduction 5

MDD for FordMsg2FDBusHiSpd 5

2 FordMsg2FDBusHiSpd & High-Level Description 6

3 Design details of software module 7

3.1 Graphical representation of FordMsg2FDBusHiSpd 7

3.2 Data Flow Diagram 7

3.2.1 Component level DFD 7

3.2.2 Function level DFD 7

4 Constant Data Dictionary 8

4.1 Program (fixed) Constants 8

4.1.1 Embedded Constants 8

5 Software Component Implementation 9

5.1 Sub-Module Functions 9

5.1.1 Init: FordMsg2FDBusHiSpdInit1 9

5.1.2 Per: FordMsg2FDBusHiSpdPer1 9

5.2 Server Runnables 9

5.2.1 ComIPduCallout_Mc_Send_Signlas_2_FD1 9

5.2.2 ComTimeoutNotification_EsaOn_B_Rq 9

5.3 Interrupt Functions 10

5.4 Module Internal (Local) Functions 10

5.4.1 DiagEna 10

5.4.1.1 Design Rationale 10

5.4.1.2 Processing 10

5.4.2 MsgMiss 10

5.4.2.1 Design Rationale 11

5.4.2.2 Processing 11

5.4.3 Enabled 11

5.4.3.1 Design Rationale 11

5.4.3.2 Processing 11

5.4.4 MsgPrsnt 11

5.4.4.1 Design Rationale 12

5.4.4.2 Processing 12

5.5 GLOBAL Function/Macro Definitions 13

6 Known Limitations with Design 14

7 UNIT TEST CONSIDERATION 15

Appendix A Abbreviations and Acronyms 16

Appendix B Glossary 17

Appendix C References 18

Introduction

MDD for FordMsg2FDBusHiSpd

FordMsg2FDBusHiSpd & High-Level Description

Please refer FDD.

Design details of software module

Graphical representation of FordMsg2FDBusHiSpd

Data Flow Diagram

Component level DFD

Please refer FDD.

Function level DFD

Please refer FDD.

Constant Data Dictionary

Program (fixed) Constants

Embedded Constants

Local Constants

Constant NameResolutionUnitsValue
Please refer Data Dictionary .m fileNANANA

Software Component Implementation

Sub-Module Functions

5.1.1 Init: FordMsg2FDBusHiSpdInit1

Design Rationale

None

Module Outputs

None

5.1.2 Per: FordMsg2FDBusHiSpdPer1

5.1.2.1 Design Rationale

None

5.1.2.2 Store Module Inputs to Local copies

None

5.1.2.3 Processing of function

None

5.1.2.4 Store Local copy of outputs into Module Outputs

None

Server Runnables

5.2.1 ComIPduCallout_Mc_Send_Signlas_2_FD1

5.2.1.1 Design Rationale

None

5.2.1.2 (Processing of function)

None

5.2.2 ComTimeoutNotification_EsaOn_B_Rq

5.2.2.1 Design Rationale

None

5.2.2.2 (Processing of function)

None

Interrupt Functions

None

Module Internal (Local) Functions

DiagEna

Function NameDiagEnaTypeMinMax
Arguments PassedFordEvasSteerAssiEnad_Cnt_T_loglboolean0U1U
FordCanDtcInhb_Cnt_T_loglboolean0U1U
Return Valueboolean

5.4.1.1 Design Rationale

Refer FDD

5.4.1.2 Processing

Refer FDD

MsgMiss

Function NameMsgMissTypeMinMax
Arguments PassedFordEpsLifeCycMod_Cnt_T_u08Uint80U1U
DiagEna_Cnt_T_loglboolean0U1U
ClrDiagcFlgProxy_Cnt_T_u08Uint80U1U
Return Value

Boolean

Uint8

5.4.2.1 Design Rationale

Refer FDD

5.4.2.2 Processing

Refer FDD

Enabled

Function NameEnabledTypeMinMax
Arguments PassedFordEpsLifeCycMod_Cnt_T_u08Uint80U1U
Return ValueNone

5.4.3.1 Design Rationale

Refer FDD

5.4.3.2 Processing

Refer FDD

MsgPrsnt

Function NameMsgPrsntTypeMinMax
Arguments PassedDiagEna_Cnt_T_loglboolean0U1U
ClrDiagcFlgProxy_Cnt_T_u08Uint80U1U
Ford_EsaOn_B_Rq_Cnt_T_enumFord_EsaOn_B_Rq0U1U
Return Value

Boolean

Uint8

5.4.4.1 Design Rationale

Refer FDD

5.4.4.2 Processing

Refer FDD

GLOBAL Function/Macro Definitions

None

Known Limitations with Design

The output signal FordVehEvasSteerAssiReq is of type enum in DataDict.m file but it is clarified to be uint8 as per the Architecture team. Same with the associated PIM FordVehEvasSteerAssiReqPrev which is clarified to be uint8.

UNIT TEST CONSIDERATION

The output signal FordVehEvasSteerAssiReq is of type enum in DataDict.m file but it is clarified to be uint8 as per the Architecture team. Same with the associated PIM FordVehEvasSteerAssiReqPrev which is clarified to be uint8.

Abbreviations and Acronyms

Abbreviation or AcronymDescription

Glossary

Note: Terms and definitions from the source “Nexteer Automotive” take precedence over all other definitions of the same term. Terms and definitions from the source “Nexteer Automotive” are formulated from multiple sources, including the following:

  • ISO 9000

  • ISO/IEC 12207

  • ISO/IEC 15504

  • Automotive SPICE® Process Reference Model (PRM)

  • Automotive SPICE® Process Assessment Model (PAM)

  • ISO/IEC 15288

  • ISO 26262

  • IEEE Standards

  • SWEBOK

  • PMBOK

  • Existing Nexteer Automotive documentation

TermDefinitionSource
MDDModule Design Document
DFDData Flow Diagram

References

Ref. #TitleVersion
1AUTOSAR Specification of Memory Mapping (Link:AUTOSAR_SWS_MemoryMapping.pdf)v1.3.0 R4.0 Rev 2
2MDD GuidelineEA4 01.00
3Software Naming Conventions.docEA4 01.02
4Software Design and Coding Standards.docEA4 2.01
5FDD: MM134A_ FordMsg2FDBusHiSpd _DesignSee Synergy subproject version
Last modified October 12, 2025: Initial commit (ddf2e20)