FordMsg230BusHiSpd_MDD

Module Design Document

For

FordMsg230BusHiSpd

03-Apr-2018

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

Tata Elxsi,

Trivandrum, INDIA
Change History

DescriptionAuthorVersionDate
Initial VersionTATA1.003-Apr-2018


Table of Contents

1 Introduction 5

MDD for FordMsg230BusHiSpd 5

2 FordMsg230BusHiSpd & High-Level Description 6

3 Design details of software module 7

3.1 Graphical representation of FordMsg230BusHiSpd 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: FordMsg230BusHiSpdInit1 9

5.1.2 Per: FordMsg230BusHiSpdPer1 9

5.2 Server Runnables 9

5.2.1 ComIPduCallout_BrakeSysFeatures_HS2 9

5.2.2 ComTimeoutNotification_Veh_V_ActlBrk 9

5.3 Interrupt Functions 10

5.4 Module Internal (Local) Functions 10

5.4.1 Local Function #1 10

5.4.1.1 Design Rationale 10

5.4.1.2 Processing 10

5.4.2 Local Function #2 10

5.4.2.1 Design Rationale 11

5.4.2.2 Processing 11

5.4.3 Local Function #3 11

5.4.3.1 Design Rationale 11

5.4.3.2 Processing 11

5.4.4 Local Function #4 11

5.4.4.1 Design Rationale 12

5.4.4.2 Processing 12

5.4.5 Local Function #5 12

5.4.5.1 Design Rationale 12

5.4.5.2 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 FordMsg230BusHiSpd

FordMsg230BusHiSpd & High-Level Description

Please refer FDD.

Design details of software module

Graphical representation of FordMsg230BusHiSpd

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: FordMsg230BusHiSpdInit1

Design Rationale

None

Module Outputs

None

5.1.2 Per: FordMsg230BusHiSpdPer1

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 _TransGearData_FD1

5.2.1.1 Design Rationale

None

5.2.1.2 (Processing of function)

None

5.2.2 ComTimeoutNotification _GearLvrPos_D_Actl

5.2.2.1 Design Rationale

None

5.2.2.2 (Processing of function)

None

Interrupt Functions

None

Module Internal (Local) Functions

Local Function #1

Function NameDiagEnaTypeMinMax
Arguments PassedFordTrlrBackupAssiEnad_Cnt_T_loglboolean0U1U
FordCanDtcInhb_Cnt_T_loglboolean0U1U
ClrDiagcFlgProxy_Cnt_T_u08uint80U255U
*MissMsgDiagEna_Cnt_T_loglboolean0U1U
*ClrDiagcFlgProxyEna_Cnt_logboolean0U1U
Return Value

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM066A_FordMsg230BusHiSpd/FordMsg230BusHiSpd/FordMsg230BusHiSpdPer1/DiagEnab

Local Function #2

Function NameMissMsgTypeMinMax
Arguments PassedBusHiSpdMissThd_Cnt_T_u16unit160U65535U
MissMsgDiagEna_Cnt_T_loglboolean0U1U
ClrDiagcFlgProxyEna_Cnt_loglboolean0U1U
*FordVehGearLvrPosnVldInt_Cnt_T_loglboolean0U1U
*FordVehGearLvrPosn_Cnt_T_enumFord_GearLvrPos_D_Actl0U15U
Return ValueNone

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM066A_FordMsg230BusHiSpd/FordMsg230BusHiSpd/FordMsg230BusHiSpdPer1/MsgMiss

Local Function #3

Function NameMsgPrsntTypeMinMax
Arguments PassedMissMsgDiagEna_Cnt_T_loglboolean0U1U
BusHiSpdInvldThd_Cnt_T_u16uint160U65535U
FordVehGearLvrPosnVldFlg_Cnt_T_loglboolean0U1U
ClrDiagcFlgProxyEna_Cnt_loglboolean0U1U
Return ValueNone

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM066A_FordMsg230BusHiSpd/FordMsg230BusHiSpd/FordMsg230BusHiSpdPer1/MsgPrsnt

Local Function #4

Function NameOutpProcgTypeMinMax
Arguments PassedFord_GearLvrPos_D_Actl_Cnt_T_enumFord_GearLvrPos_D_Actl0U15U
*FordVehGearLvrPosn_Cnt_T_enumFord_GearLvrPos_D_Actl0U15U
*FordVehGearLvrPosnVldInt_Cnt_T_loglboolean0U1U
*FordVehGearLvrPosnVldFlg_Cnt_T_loglboolean0U1U
Return ValueNone

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM066A_FordMsg230BusHiSpd/FordMsg230BusHiSpd/FordMsg230BusHiSpdPer1/MsgPrsnt/OutpProcg

Local Function #5

Function NameElpdTiTypeMinMax
Arguments Passed*VldElpdTi_Cnt_T_loglboolean0U1U
*InvldElpdTi_Cnt_T_loglboolean0U1U
Return ValueNone

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM066A_FordMsg230BusHiSpd/FordMsg230BusHiSpd/FordMsg230BusHiSpdPer1/MsgPrsnt/OutpProcg

/VldElpdTi

GLOBAL Function/Macro Definitions

None

Known Limitations with Design

None.

UNIT TEST CONSIDERATION

None.

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: MM077A_FordMsg415BusHiSpd_DesignSee Synergy subproject version
Last modified October 12, 2025: Initial commit (ddf2e20)