Sr. No.	Title	Version
1	FDD – CM650A HwTq8Meas	See Synergy subproject version
2	Software Naming Conventions	Process 04.02.00
3	Software Coding Standards	Process 04.02.00

Dependencies

SWCs

Module	Required Feature
None

Note : Referencing the external components should be avoided in most cases. Only in unavoidable circumstance external components should be referred. Developer should track the references.

Global Functions(Non RTE) to be provided to Integration Project

None

Configuration REQUIREMeNTS

Build Time Config

Modules	Notes
FLTINJENA	Set to STD_ON if want to turn on the fault injection

Configuration Files to be provided by Integration Project

CDD_HwTq8Meas_Cfg.h

Note: Temporarily this file can be copied from the contract folder. Later revision will have the Davinci configuration parameter to generate the file.

Da Vinci Parameter Configuration Changes

Parameter	Notes	SWC
None

DaVinci Interrupt Configuration Changes

ISR Name	VIM #	Priority Dependency	Notes
None

Manual Configuration Changes

Constant	Notes	SWC
None

Integration DATAFLOW REQUIREMENTS

Required Global Data Inputs

Refer DataDict.m file

Required Global Data Outputs

Refer DataDict.m file

Specific Include Path present

Yes

Runnable Scheduling

This section specifies the required runnable scheduling.

Init	Scheduling Requirements	Trigger
HwTq8MeasInit1	None	RTE (Init)

Runnable	Scheduling Requirements	Trigger
HwTq8MeasPer1	None	RTE (2 ms)
HwTq8MeasPer2	None	RTE (100 ms)
HwTq8AutTrim_Oper	None	On event
HwTq8ClrTrim_Oper	None	On event
HwTq8ReadTrim_Oper	None	On event
HwTq8TrimPrfmdSts_Oper	None	On event
HwTq8WrTrim_Oper	None	On event
HwTq8MeasTrigStrt_Oper	None	On event

Memory Map REQUIREMENTS

Mapping

Memory Section	Contents	Notes
None

* Each …START_SEC… constant is terminated by a …STOP_SEC… constant as specified in the AUTOSAR Memory Mapping requirements.

Usage

Feature	RAM	ROM
None

Table 1: ARM Cortex R4 Memory Usage

NvM Blocks

*See DataDict.m

Compiler Settings

Preprocessor MACRO

None

Optimization Settings

None

Appendix

Port Configuration SENT0SPCO output:

Port (that’s needs to be configured as SENT0SPCO) should be initialized as input DIO with level high.

The client call IoHwAb_SetFctPrphlHwTq8_Oper will reset the pin to output alternate mode for SENT0SPCO.

2 - HwTq8Meas_MDD

Module Design Document

For

Handwheel Torque 8 Measurement

Jul 11, 2017

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

Software Group,

Nexteer Automotive,

Saginaw, MI, USAChange History

Description	Author	Version	Date
Initial Version	Krishna Anne	1.0	1-Apr-2017

Table of Contents

1 Introduction 5

1.1 Purpose 5

2 HwTq8Meas & High-Level Description 6

3 Design details of software module 7

3.1 Graphical representation of HwTq8Meas 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: HwTq8MeasInit1 9

5.1.1.1 Design Rationale 9

5.1.1.2 Module Outputs 9

5.1.2 Per: HwTq8MeasPer1 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

5.1.3 Per: HwTq8MeasPer2 9

5.1.3.1 Design Rationale 9

5.1.3.2 Store Module Inputs to Local copies 10

5.1.3.3 (Processing of function)……… 10

5.1.3.4 Store Local copy of outputs into Module Outputs 10

5.2 Server Runnables 10

5.2.1 HwTq8AutTrim_oper 10

5.2.1.1 Design Rationale 10

5.2.1.2 (Processing of function)……… 10

5.2.2 HwTq8ClrTrim_Oper 10

5.2.2.1 Design Rationale 10

5.2.2.2 (Processing of function)……… 10

5.2.3 HwTq8ReadTrim_Oper 10

5.2.3.1 Design Rationale 10

5.2.3.2 (Processing of function)……… 10

5.2.4 HwTq8TrimPrfmdSts_Oper 11

5.2.4.1 Design Rationale 11

5.2.4.2 (Processing of function)……… 11

5.2.5 HwTq8WrTrim_Oper 11

5.2.5.1 Design Rationale 11

5.2.5.2 (Processing of function)……… 11

5.2.6 HwTq8MeasTrigStrt_Oper 11

5.2.6.1 Design Rationale 11

5.2.6.2 (Processing of function)……… 11

5.3 Interrupt Functions 11

5.4 Module Internal (Local) Functions 11

5.4.1 Local Function #1 11

5.4.1.1 Design Rationale 11

5.4.2 Local Function #2 12

5.4.2.1 Design Rationale 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 18

Introduction

Purpose

Module design document for Hand Wheel Torque 8 Measurement Function.

HwTq8Meas & High-Level Description

This module configures and processes the RSENT4 peripheral, which is connected to the handwheel torque 8 sensor. The module configures the peripheral, triggers transfers, and processes the received data.

This module also reads and provides the rack limiter EOT information which is stored in torque sensor 8 scratchpad.

Design details of software module

Graphical representation of HwTq8Meas

Data Flow Diagram

Component level DFD

N/A

Function level DFD

N/A

Constant Data Dictionary

Program (fixed) Constants

Embedded Constants

Local Constants

Constant Name	Resolution	Units	Value

TQDATAMASK_CNT_U32	1	Cnt	0x00000FFFUL
SENTSYNCTRIG_CNT_U32	1	Cnt	16UL
REGCFGWAITTI_CNT_U32	1	Cnt	2UL
RACKLIMREOTSIGHILIM_HWDEG_F32	Single Precision float	HwDeg	(800.0F)
RACKLIMREOTSIGLOLIM_HWDEG_F32	Single Precision float	HwDeg	(-800.0F)
RACKLIMRCCWEOTSCA_ULS_F32	Single Precision float	Uls	(-0.1953F)
RACKLIMRCWEOTSCA_ULS_F32	Single Precision float	Uls	(0.1953F)
EOTCSMASK_CNT_U32	1	Cnt	0x00000700UL
EOTIDTWO_CNT_U08	1	Cnt	2U
EOTIDTHREE_CNT_U08	1	Cnt	3U
EOTIDFOUR_CNT_U08	1	Cnt	4U
EOTDATAMASK_CNT_U32	1	Cnt	0x00000FF0UL
EOTIDMASK_CNT_U32	1	Cnt	0x0000000FUL
FRSMASK_CNT_U32	1	Cnt	0x00000001UL
CSMASK_CNT_U32	1	Cnt	0x000000FEUL
FCCNMASK_CNT_U32	1	Cnt	0x30000000UL
SLOWMSGDATAMASK_CNT_U32	1	Cnt	0x80000000UL

Software Component Implementation

Sub-Module Functions

The sub-module functions are grouped based on similar functionality that needs to be executed in a given “State” of the system (refer States and Modes). For a given module, the MDD will identify the type and number of sub-modules required. The sub-module types are described below.

Init: HwTq8MeasInit1

Design Rationale

Magic numbers are used due to the large number of numeric values (for peripheral register configuration), it is more readable and easier to maintain without using embedded constants for these values. The values are shown in code comments, and line up exactly with the definitions given in the design module (a special spreadsheet was included in the design for this purpose).

See CM690D_HwTq8Meas_RSENTPeripheralCfg.xlsx in design module.

Module Outputs

Refer to FDD

Per: HwTq8MeasPer1

Design Rationale

None

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

Per: HwTq8MeasPer2

Interrupt Functions

None

Module Internal (Local) Functions

Local Function #1

Function Name	RackLimrEotSigRead	Type	Min	Max
Arguments Passed	None	N/A	N/A	N/A
Return Value	N/A	N/A	N/A	N/A

Design Rationale

See RackLimrEot/RackLimrEotSigRead2 block in the Simulink model of the design.

Local Function #2

Function Name	ReadRegister	Type	Min	Max
Arguments Passed	RegisterDummyRead_Cnt_T_u32	N/A	N/A	N/A
Return Value	RegisterDummyRead_Cnt_T_u32	N/A	N/A	N/A

Design Rationale

This function can be used both for read-and-use and for read-and-discard

Local Function #3

Function Name	HwTqRollgCntr	Type	Min	Max
Arguments Passed	TestOk_Cnt_T_enum	NtcSts1	0U	3U
Return Value	NA	N/A	N/A	N/A

Design Rationale

This function is split from Per1 to reduce path count.

GLOBAL Function/Macro Definitions

None

Known Limitations with Design

None

UNIT TEST CONSIDERATION

Overflow for the variables Rte_Pim_HwTq8PrevRollgCntr, Rte_Pim_HwTq8MsgMissRxCnt, Rte_Pim_HwTq8ComStsErrCntr, Rte_Pim_HwTq8IntSnsrErrCntr are intentional as these are used as rolling counters.

Abbreviations and Acronyms

Abbreviation or Acronym	Description
DFD	Design functional diagram
MDD	Module design Document

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

Term	Definition	Source
MDD	Module Design Document
DFD	Data Flow Diagram

References

Ref. #	Title	Version
1	AUTOSAR Specification of Memory Mapping (Link:AUTOSAR_SWS_MemoryMapping.pdf)	v1.3.0 R4.0 Rev 2
2	MDD Guideline	EA4 01.00.00
3	Software Naming Conventions.doc	1.0
4	Software Design and Coding Standards.doc	2.1
5	FDD – CM690D HwTq8Meas	See Synergy subproject version

3 - HwTq8Meas_PeerReviewChecklist

Overview

Summary Sheet
Synergy Project
Davinci Files
Source Code
MDD
PolySpace
Integration Manual

Sheet 1: Summary Sheet

Rev 1.2

8-Jun-15

Peer Review Summary Sheet

Synergy Project Name:

kzshz2: Intended Use: Identify which component is being reviewed. This should be the Module Short Name from Synergy Rationale: Required for traceability. It will help to ensure this form is not attaced to the the wrong change request. CM690D_HwTq8Meas_Impl

Revision / Baseline:

kzshz2: Intended Use: Identify which Synergy revision of this component is being reviewed Rationale: Required for traceability. It will help to ensure this form is not attaced to the the wrong change request. CM690D_HwTq8Meas_Impl_2.0.0

Change Owner:

kzshz2: Intended Use: Identify the developer who made the change(s) Rationale: A change request may have more than one resolver, this will help identify who made what change. Change owner identification may be required by indusrty standards. Krishna Anne

Work CR ID:

EA4#13188

kzshz2: Intended Use: Intended to identify at a high level to the reviewers which areas of the component have been changed. Rationale: This will be good information to know when ensuring appropriate reviews have been completed. Modified File Types:

kzshz2: Intended Use: Identify who where the reviewers, what they reviewed, and if the reviewed changes have been approved to release the code for testing. Comments here should be at a highlevel, the specific comments should be present on the specific review form sheet. Rationale: Since this Form will be attached to the Change Request it will confirm the approval and provides feedback in case of audits. ADD DR Level Move reviewer and approval to individual checklist form Review Checklist Summary:

Reviewed:

Yes

MDD

Yes

Source Code

Yes

PolySpace

Yes

Integration Manual

Yes

Davinci Files

Comments:

General Guidelines:
- The reviews shall be performed over the portions of the component that were modified as a result of the Change Request.
- New components should include FDD Owner and Integrator as apart of the Group Review Board (Source Code, Integration Manual, and Davinci Files)
- Enter any rework required into the comment field and select No. When the rework is complete, review again using this same review sheet and select Yes. Add date and additional comment stating that the rework is completed.
- To review a component with multiple source code files use the "Add Source" button to create a Source code tab for each source file.
- .h file should be reviewed with the source file as part of the source file.

Sheet 2: Synergy Project

Peer Review Meeting Log (Component Synergy Project Review)

Quality Check Items:

Rationale is required for all answers of No

New baseline version name from Summary Sheet follows

Yes

Comments:

naming convention

Project contains necessary subprojects

Yes

Comments:

Project contains the correct version of subprojects

Yes

Comments:

Design subproject is correct version

Yes

Comments:

General Notes / Comments:

LN: Intended Use: Identify who were the reviewers and if the reviewed changes have been approved. Rationale: Since this Form will be attached to the Change Request it will confirm the approval and provides feedback in case of audits. KMC: Group Review Level removed in Rev 4.0 since the design review is not checked in until approved, so it would always be DR4. Review Board:

Change Owner:

Krishna Anne

Review Date :

10/05/17

Lead Peer Reviewer:

Shawn

Approved by Reviewer(s):

Yes

Other Reviewer(s):

Dimple

Mrudula

Sheet 3: Davinci Files

Rev 1.2

8-Jun-15

Peer Review Meeting Log (Davinci Review)

Quality Check Items:

Rationale is required for all answers of No

Only StdDef Port types are used

Yes

Comments:

For components not using application data types, do all

Yes

Comments:

port interface names end in PortIf and a sequence number

Non-program-specific components saved

Yes

Comments:

in Autosar 4.0.3 format

*Cfg.arxml.TT: Verfied Davinci Configurator imported the

Yes

Comments:

change correctly

*Cfg.h.TT: Verfied Davinci Configurator generates

Yes

Comments:

the configuration header(s) file correctly

kzshz2: Either a generic sandbox or a baselined integration project can be used to verify

All changed files have been compared against previous

N/A

Comments:

versions (If available)

kzshz2: Intended Use: Identify if previous version was compared and only the expected change(s) was present. This is for text files only, not binary or GUIs Rationale: This is helpful in identifying unapproved (intended or mistaken) changes.

Initial version

Automated validation check is performed

Yes

Comments:

Naming conventions followed. All names should

Yes

Comments:

match DataDict.m

Sender/Receiver port properties match DataDict.m

Yes

Comments:

file (use .m file helper tool)

Calibration port properties match DataDict.m

Yes

Comments:

file (use .m file helper tool)

Components using application data types:

Sender/Receiver port initialization values match

Yes

Comments:

DataDict.m file

Calibration port initialization values match

Yes

Comments:

DataDict.m file

Components not using application data types:

Sender/Receiver port initialization values match

Yes

Comments:

DataDict.m file and have been converted to counts

for fixed point types

Calibration port initialization values match

Yes

Comments:

DataDict.m file and have been converted to counts

for fixed point types

Mapping set and all unused items have been

Yes

Comments:

removed

All sender/receiver port read/writes using direct

Yes

Comments:

read/writes(List justification if not)

Runnable calling frequencies match FDD

Yes

Comments:

DataDict.m display variables: created as

Yes

Comments:

PerInstanceMemory. Matches the FDD

Component is correct component type

Yes

Comments:

General Notes / Comments:

Change Owner:

Krishna Anne

Review Date :

10/05/17

Component Type :

Complex Driver

Lead Peer Reviewer:

Shawn

Approved by Reviewer(s):

Yes

Other Reviewer(s):

Dimple

Mrudula

Sheet 4: Source Code

Rev 1.2

8-Jun-15

Peer Review Meeting Log (Source Code Review)

Source File Name:

CDD_HwTq8Meas.c

Source File Revision:

Header File Name:

CDD_HwTq8Meas.h

Header File Revision:

kzshz2: Intended Use: Identify which version of the source file is being review. Rationale: Required for traceability between source code and review. Auditors will likely require this. 1

MDD Name:

HwTq8Meas_MDD.doc

Revision:

FDD/SCIR/DSR/FDR/CM Name:

CM690D_HwTq8Meas_Design

Revision:

2.1.0

Quality Check Items:

Rationale is required for all answers of No

Working EA4 Software Naming Convention followed:

for variable names

Yes

Comments:

for constant names

Yes

Comments:

for function names

Yes

Comments:

for other names (component, memory

Yes

Comments:

mapping handles, typedefs, etc.)

All paths assign a value to outputs, ensuring

Yes

Comments:

all outputs are initialized prior to being written

Requirements Tracability tags in code match the requirements tracability in the FDD

N/A

Comments:

requirements tracability in the FDD

All variables are declared at the function level.

Yes

Comments:

Synergy version matches change history

kzshz2: Intended Use: Indicate that the the versioning was confirmed by the peer reviewer(s). Rationale: There have been many occassions where versions were not updated in files and as a result Unit Test were referencing wrong versions. This often time leads to the need to re-run of batch tests.

Yes

Comments:

and Version Control version in file comment block

Change log contains detailed description of changes

Yes

Comments:

and Work CR number

Code accurately implements FDD (Document or Model)

Yes

Comments:

Verified no Compiler Errors or Warnings

KMC: Intended Use: To confirm no compiler errors or warnings exist for the code under review (warnings from contract header files may be ignored). Rationale: This is needed to ensure there will be no errors discovered at the time of integration. A Sandox project should be used; QAC can find compiler errors but not warnings.

Yes

Comments:

Component.h is included

Yes

Comments:

All other includes are actually needed. (System includes

Yes

Comments:

only allowed in Nexteer library components)

Software Design and Coding Standards followed:

Version: 2.1

Code comments are clear, correct, and adequate

Yes

Comments:

and have been updated for the change: [N40] and

all other rules in the same section as rule [N40],

plus [N75], [N12], [N23], [N33], [N37], [N38],

[N48], [N54], [N77], [N79], [N72]

Source file (.c and .h) comment blocks are per

Yes

Comments:

standards and contain correct information: [N41], [N42]

Function comment blocks are per standards and

Yes

Comments:

contain correct information: [N43]

Code formatting (indentation, placement of

Yes

Comments:

braces, etc.) is per standards: [N5], [N55], [N56],

[N57], [N58], [N59]

Embedded constants used per standards; no

Yes

Comments:

"magic numbers": [N12]

Memory mapping for non-RTE code

N/A

Comments:

is per standard

All execution-order-dependent code can be

Yes

Comments:

recognized by the compiler: [N80]

All loops have termination conditions that ensure

N/A

Comments:

finite loop iterations: [N63]

All divides protect against divide by zero

N/A

Comments:

if needed: [N65]

All integer division and modulus operations

N/A

Comments:

handle negative numbers correctly: [N76]

All typecasting and fixed point arithmetic,

Yes

Comments:

including all use of fixed point macros and

timer functions, is correct and has no possibility

of unintended overflow or underflow: [N66]

All float-to-unsiged conversions ensure the.

Yes

Comments:

float value is non-negative: [N67]

All conversions between signed and unsigned

N/A

Comments:

types handle msb==1 as intended: [N78]

All pointer dereferencing protects against

Yes

Comments:

null pointer if needed: [N70]

Component outputs are limited to the legal range

Yes

Comments:

defined in the FDD DataDict.m file : [N53]

All code is mapped with FDD (all FDD

Yes

Comments:

subfunctions and/or model blocks identified

with code comments; all code corresponds to

some FDD subfunction and/or model block): [N40]

Review did not identify violations of other

Yes

Comments:

coding standard rules

Anomaly or Design Work CR created

N/A

Comments: List Anomaly or CR numbers

for any FDD corrections needed

General Notes / Comments:

Change Owner:

Krishna Anne

Review Date :

10/05/17

Lead Peer Reviewer:

Shawn

Approved by Reviewer(s):

Yes

Other Reviewer(s):

Dimple

Mrudula

Sheet 5: MDD

Rev 1.2

8-Jun-15

Peer Review Meeting Log (MDD Review)

MDD Name:

HwTq8Meas_MDD

MDD Revision:

Source File Name:

CDD_HwTq8Meas.c

Source File Revision:

Source File Name:

Source File Revision:

Source File Name:

Source File Revision:

Quality Check Items:

Rationale is required for all answers of No

Synergy version matches document

Yes

Comments:

Change log contains detailed description of changes

Yes

Comments:

Changes Highlighted (for Unit Tester)

N/A

Comments:

Initial version

Diagrams have been included per MDD Guideline

Yes

Comments:

and reviewed

All Design Exceptions and Limitations are listed

N/A

Comments:

Design rationale given for all global

N/A

Comments:

data not communicated through RTE ports, per

Design and Coding Standards rules [N9] and [N10].

All implementation details that differ from the FDD are

N/A

Comments:

noted and explained in Design Rationale

All Unit Test Considerations have been described

Yes

Comments:

General Notes / Comments:

Change Owner:

Krishna Anne

Review Date :

10/05/17

Lead Peer Reviewer:

Shawn

Approved by Reviewer(s):

Yes

Other Reviewer(s):

Mrudula

Sheet 6: PolySpace

Rev 1.2

8-Jun-15

Peer Review Meeting Log (QAC/PolySpace Review)

Source File Name:

CDD_HwTq8Meas.c

Source File Revision:

Source File Name:

Source File Revision:

Source File Name:

Source File Revision:

EA4 Static Analysis Compliance Guideline version:

01.03.00

Poly Space version:

Windows User: eg. 2013b 2013b

Polyspace sub project version:

Windows User: eg. TL108a_PolyspaceSuprt_1.0.0 NA

Quality Check Items:

Rationale is required for all answers of No

Contract Folder's header files are appropriate and

kzshz2: Intended Use: Identify that the contract folder contains only the information required for this component. All other variables, constants, function prototypes, etc. should be removed. Rationale: This will help avoid unit testers having to considers object not used. It will also avoid having other files required for QAC.

Yes

Comments:

function prototypes match the latest component version

100% Compliance to the EA4 Static Analysis

Yes

Comments:

Compliance Guideline

Are previously added justification and deviation

N/A

Comments:

comments still appropriate

Initial version

Do all MISRA deviation comments use approved

Yes

Comments:

deviation tags

Cyclomatic complexity and Static path count OK

Creager, Kathleen: use Browse Function Metrics, STCYC and STPTH

Yes

Comments:

for all functions in the component per Design

and Coding Standards rule [N47]

General Notes / Comments:

Change Owner:

Krishna Anne

Review Date :

10/05/17

Lead Peer Reviewer:

Shawn

Approved by Reviewer(s):

Yes

Other Reviewer(s):

Mrudula

Sheet 7: Integration Manual

Rev 1.2

8-Jun-15

Peer Review Meeting Log (Integration Manual Review)

Integration Manual Name:

kzshz2: Intended Use: Identify which file is being reviewed Rationale: Required for traceability. It will help to ensure this sheet is not attached to the wrong design review form. HwTq8Meas_IntegrationManual

Integration Manual Revision:

kzshz2: Intended Use: Identify which version of the integration manual has been reviewed. Rationale: Required for traceability between the MDD and review. Auditors will likely require this. 1

Quality Check Items:

Rationale is required for all answers of No

Synergy version matches header

Yes

Comments:

Latest template used

Yes

Comments:

Change log contains detailed description of changes

Yes

Comments:

Changes Highlighted (for Integrator)

N/A

Comments:

Initial version

General Notes / Comments:

Change Owner:

Krishna Anne

Review Date :

10/05/17

Lead Peer Reviewer:

Shawn

Approved by Reviewer(s):

Yes

Other Reviewer(s):

Mrudula