CurrMeasArbn_MDD

Module Design Document

For

Current Measurement Arbitration

Mar 18, 2016

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

SEPG,

Nexteer Automotive,

Saginaw, MI, USAChange History

Table of Contents

1 Introduction 5

1.1 Purpose 5

1.2 Scope 5

2 Current Measurement Arbitration & High-Level Description 6

3 Design details of software module 7

3.1 Graphical representation of Current Measurement Arbitration 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: CurrMeasArbnInit1 9

5.1.1.1 Design Rationale 9

5.1.1.2 Module Outputs 9

5.1.1.3 Per: 9

5.1.1.4 CurrMeasARBNPer1 9

5.1.1.5 Design Rationale 9

5.1.1.6 Store Module Inputs to Local copies 9

5.1.1.7 (Processing of function)……… 9

5.1.1.8 Store Local copy of outputs into Module Outputs 9

5.2 Server Runables 9

5.3 Interrupt Functions 9

5.4 Module Internal (Local) Functions 9

5.5 Local Function/Macro Definitions 9

5.5.1 Local Function #1 SigAvlCheck 9

5.5.1.1 Description 10

5.5.2 Local Function #2 ParkTransformation 10

5.5.2.1 Description 10

5.6 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 16

Introduction

Purpose

None

Scope

• None

Current Measurement Arbitration & High-Level Description

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

Refer the Design for high level Description

Design details of software module

None

Graphical representation of Current Measurement Arbitration

Data Flow Diagram

Component level DFD

None

Function level DFD

None

Constant Data Dictionary

Program (fixed) Constants

Embedded Constants

Local Constants

Software Component Implementation

Sub-Module Functions

Init: CurrMeasArbnInit1

Design Rationale

Init1 function is created so that it will allow a RTE model to be created in the AUTOSAR tools which allows Per-Instance Memory and calibration definition needs. The initialization function is doing nothing

Module Outputs

None

Per:

CurrMeasARBNPer1

Design Rationale

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

Store Module Inputs to Local copies

Refer to FDD

(Processing of function)………

Refer to FDD

Store Local copy of outputs into Module Outputs

Refer to FDD

Server Runables

None

Interrupt Functions

None

Module Internal (Local) Functions

Local Function/Macro Definitions

Local Function #1 SigAvlCheck

Description

Refer FDD.

Local Function #2 ParkTransformation

Description

Refer FDD.

MotCtrlMotElecMeclPolarity_Cnt_T_s08* takes two values (-1 and 1)

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