FordMsg41ABusHiSpd_MDD

Module Design Document

For

FordMsg41ABusHiSpd

June 19, 20158

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

Nexteer ISC,

Bengaluru, INDIA.

Change History

DescriptionAuthorVersionDate
Initial VersionTATA1.027-Nov-2017
Updated based on model version V.3.0.0Nexteer ISC2.023-Apr-2018

Table of Contents

1 Introduction 5

1.1 Purpose 5

2 FordMsg41ABusHiSpd & High-Level Description 6

3 Design details of software module 7

3.1 Graphical representation of FordMsg41ABusHiSpd 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: FordMsg41ABusHiSpdInit1 9

5.1.1.1 Design Rationale 9

5.1.1.2 Module Outputs 9

5.1.2 Per: FordMsg41ABusHiSpdPer1 9

5.1.2.1 Design Rationale 9

5.1.2.2 Store Module Inputs to Local copies 9

5.1.2.3 Processing of function)……… 9

5.1.2.4 Store Local copy of outputs into Module Outputs 9

5.2 Server Runnables 9

5.2.1 ComIPduCallout_Climate_Control_Data_HS2 9

5.2.1.1 Design Rationale 9

5.2.1.2 (Processing of function) 9

5.2.2 ComTimeoutNotification_Outside_Air_Temp_Stat 9

5.2.2.1 Design Rationale 9

5.2.2.2 (Processing of function) 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 10

5.4.2.2 Processing 10

5.4.3 Local Function #3 11

5.4.3.1 Design Rationale 11

5.4.3.2 Processing 11

5.5 GLOBAL Function/Macro Definitions 11

6 Known Limitations with Design 12

7 UNIT TEST CONSIDERATION 13

Appendix A Abbreviations and Acronyms 14

Appendix B Glossary 15

Appendix C References 16

Introduction

Purpose

MDD for FordMsg41ABusHiSpd

FordMsg41ABusHiSpd & High-Level Description

Please refer FDD.

Design details of software module

Graphical representation of FordMsg41ABusHiSpd

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: FordMsg41ABusHiSpdInit1

Design Rationale

None

Module Outputs

None

5.1.2 Per: FordMsg41ABusHiSpdPer1

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_Climate_Control_Data_HS2

5.2.1.1 Design Rationale

None

5.2.1.2 (Processing of function)

None

5.2.2 ComTimeoutNotification_Outside_Air_Temp_Stat

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 PassedFordCanDtcInhb_Cnt_T_loglbooleanFALSETRUE
ClrDiagcFlgProxy_Cnt_T_u08Uint80U1U
*ClrDiagcFlgProxyEna_Cnt_T_loglbooleanFALSETRUE
Return ValueDiagEna_Cnt_T_loglBooleanFALSETRUE

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM078A_FordMsg41ABusHiSpd/FordMsg41ABusHiSpd/FordMsg41ABusHiSpdPer1/DiagEna

Local Function #2

Function NameMissMsgDtrmTypeMinMax
Arguments PassedDiagEna_Cnt_T_loglbooleanFALSETRUE
ClrDiagcFlgProxyEna_Cnt_T_loglbooleanFALSETRUE
BusHiSpdMissThd_Cnt_T_u16Uint160U65535U
*FordVehOutdAirTRaw_Cnt_T_u16Uint160U65535U
Return ValueFordVehOutdAirT_DegCgrd_T_f32float320U4294967295U

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM078A_FordMsg41ABusHiSpd/FordMsg41ABusHiSpd/FordMsg41ABusHiSpdPer1/MissMsgDetermination

Local Function #3

Function NameMsgProcgTypeMinMax
Arguments PassedDiagEna_Cnt_T_loglbooleanFALSETRUE
ClrDiagcFlgProxyEna_Cnt_T_loglbooleanFALSETRUE
*FordVehOutdAirTRaw_Cnt_T_u16Uint160U65535U
Return ValueFordVehOutdAirT_DegCgrd_T_f32float320U4294967295U

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM078A_FordMsg41ABusHiSpd_300/FordMsg41ABusHiSpd/FordMsg41ABusHiSpdPer1/MsgProcessing

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 01.00.00
3Software Naming Conventions.doc1.0
4Software Design and Coding Standards.doc2.1
5FDD: MM078A_FordMsg41ABusHiSpd_DesignSee Synergy sub project version
Last modified October 12, 2025: Initial commit (ddf2e20)