SinVltgGenn_MDD

Module Design Document

For

Sine Voltage Generation

Mar 20, 2016

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

SEPG,

Nexteer Automotive,

Saginaw, MI, USA

Change History

Table of Contents

1 Introduction 5

1.1 Purpose 5

1.2 Scope 5

2 SinVltgGenn & High-Level Description 6

3 Design details of software module 7

3.1 Graphical representation of SinVltgGenn 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

5.2 Initialization Functions 9

5.2.1 Init: SinVltgGennInit1 9

5.2.1.1 Design Rationale 9

5.2.1.2 Module Internal 9

5.3 PERIODIC FUNCTIONS 9

5.3.1 Per: SinVltgGennPer1 9

5.3.1.1 Design Rationale 9

5.3.1.2 Processing of Function 9

5.3.2 Per: SinVltgGennPer2 9

5.3.2.1 Design Rationale 9

5.3.2.2 Processing of Function 9

5.4 Server Runables 9

5.5 Interrupt Functions 10

5.6 Module Internal (Local) Functions 10

5.6.1 Local Function #1 10

5.6.1.1 Description 10

5.7 GLOBAL Function/Macro Definitions 10

6 Known Limitations with Design 11

7 UNIT TEST CONSIDERATION 12

Appendix A Abbreviations and Acronyms 13

Appendix B Glossary 14

Appendix C References 15

Introduction

Purpose

None

Scope

• None

SinVltgGenn & High-Level Description

The component contains two source files, both described in this MDD: CDD_ SinVltgGenn.c contains the RTE init runnable; CDD_SinVltgGenn_MotCtrl.c contains the motor control runnable.

Refer the Design for high level Description

Design details of software module

Graphical representation of SinVltgGenn

Data Flow Diagram

None

Component level DFD

Function level DFD

Constant Data Dictionary

Program (fixed) Constants

Embedded Constants

Local Constants

Software Component Implementation

Note: All the non RTE signals defined in m file are implemented as global varibles managed by motor control manager. RTE can not manage motor control runnables inputs and outputs.

Sub-Module Functions

None

Initialization Functions

Init: SinVltgGennInit1

Design Rationale

None

Module Internal

See design model for details.

PERIODIC FUNCTIONS

Per: SinVltgGennPer1

Design Rationale

Inputs and outputs are globals since its non RTE (MotorControl ISR) function.

Note: Instead of division operation, multiplication with ‘NXTRFIXDPT_P16TOFLOAT_ULS_F32’ used.

Processing of Function

See design model for details.

Per: SinVltgGennPer2

Design Rationale

Inputs and outputs are globals since its non RTE (MotorControl ISR) function.

Note: outputs are not limited in SW as max limit is set to U32 range in design.

Processing of Function

See design model for details.

Server Runables

None

Interrupt Functions

None

Module Internal (Local) Functions

Local Function #1

Description

Function corresponds to 'Subsystem1/Subsystem2/Subsystem3' block implementation. Subsystems 1 through 3 have common processing.

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