FordMsg3B3BusHiSpd_MDD

Module Design Document

For

FordMsg3B3BusHiSpd

June 19, 20157

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

Tata Elxsi,

Trivandrum, INDIA

Change History

Table of Contents

1 Introduction 5

1.1 Purpose 5

2 FordMsg3B3BusHiSpd & High-Level Description 6

3 Design details of software module 7

3.1 Graphical representation of FordMsg3B3BusHiSpd 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: FordMsg3B3BusHiSpdInit1 9

5.1.1.1 Design Rationale 9

5.1.1.2 Module Outputs 9

5.1.2 Per: FordMsg3B3BusHiSpdPer1 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_BodyInfo_3_HS2 9

5.2.1.1 Design Rationale 9

5.2.1.2 (Processing of function) 9

5.2.2 ComTimeoutNotification_Ignition_Status 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

5.4.4 Local Function #4 11

5.4.4.1 Design Rationale 11

5.4.4.2 Processing 11

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 12

6 Known Limitations with Design 13

7 UNIT TEST CONSIDERATION 14

Appendix A Abbreviations and Acronyms 15

Appendix B Glossary 16

Appendix C References 17

Introduction

Purpose

MDD for FordMsg3B3BusHiSpd

FordMsg3B3BusHiSpd & High-Level Description

Please refer FDD.

Design details of software module

Graphical representation of FordMsg3B3BusHiSpd

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

Software Component Implementation

Sub-Module Functions

5.1.1 Init: FordMsg3B3BusHiSpdInit1

Design Rationale

None

Module Outputs

None

5.1.2 Per: FordMsg3B3BusHiSpdPer1

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_BodyInfo_3_HS2

5.2.1.1 Design Rationale

None

5.2.1.2 (Processing of function)

None

5.2.2 ComTimeoutNotification_Ignition_Status

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

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM072A_FordMsg3B3BusHiSpd_SIL/FordMsg3B3BusHiSpd/FordMsg3B3BusHiSpdPer1/DiagEna

Local Function #2

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM072A_FordMsg3B3BusHiSpd_SIL/FordMsg3B3BusHiSpd/FordMsg3B3BusHiSpdPer1/MissMsgDetermination

Local Function #3

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM072A_FordMsg3B3BusHiSpd_SIL/FordMsg3B3BusHiSpd/FordMsg3B3BusHiSpdPer1/Msg_Present

Local Function #4

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM072A_FordMsg3B3BusHiSpd_SIL/FordMsg3B3BusHiSpd/FordMsg3B3BusHiSpdPer1/Msg_Present/OutputProcessing

Local Function #5

Design Rationale

Processing

Please refer to the below path in the FDD model.

MM072A_FordMsg3B3BusHiSpd_SIL/FordMsg3B3BusHiSpd/FordMsg3B3BusHiSpdPer1/Msg_Present/OutputProcessing/ElpdTi

GLOBAL Function/Macro Definitions

None

Known Limitations with Design

None

UNIT TEST CONSIDERATION

None.

Abbreviations and Acronyms

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

References