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Component Implementation
1 - PwrLimr_IntegrationManual
Integration Manual
For
PwrLimr
VERSION: 1.0
DATE: 14-AUG-2015
Prepared By:
Nick Saxton,
Nexteer Automotive,
Saginaw, MI, USA
Location: The official version of this document is stored in the Nexteer Configuration Management System.
Revision History
| Description | Author | Version | Date |
| Initial version | Nick Saxton | 1.0 | 14-Aug-2015 |
Table of Contents
3.2 Global Functions(Non RTE) to be provided to Integration Project 6
4 Configuration REQUIREMeNTS 7
4.2 Configuration Files to be provided by Integration Project 7
4.3 Da Vinci Parameter Configuration Changes 7
4.4 DaVinci Interrupt Configuration Changes 7
4.5 Manual Configuration Changes 7
5 Integration DATAFLOW REQUIREMENTS 8
5.1 Required Global Data Inputs 8
5.2 Required Global Data Outputs 8
5.3 Specific Include Path present 8
Abbrevations And Acronyms
| Abbreviation | Description |
| DFD | Design functional diagram |
| MDD | Module design Document |
| <ADD more to the table if applicable> | |
References
This section lists the title & version of all the documents that are referred for development of this document
| Sr. No. | Title | Version |
| 1 | EA4 Software Naming Conventions.doc | 01.00.00 |
| 2 | Software Design and Coding Standards.doc | 2.1 |
| 3 | SF019B_PwrLimr_Design | See Synergy subproject version |
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 | |
| None |
Configuration Files to be provided by Integration Project
None
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
See DataDict.m file
Required Global Data Outputs
See DataDict.m file
Specific Include Path present
No
Runnable Scheduling
This section specifies the required runnable scheduling.
| Init | Scheduling Requirements | Trigger |
| PwrLimrInit1 | None | RTE Init |
| Runnable | Scheduling Requirements | Trigger |
| PwrLimrPer1 | None | RTE 2ms |
| PwrLimrPer2 | None | RTE 10ms |
.
Memory Map REQUIREMENTS
Mapping
| Memory Section | Contents | Notes |
* Each …START_SEC… constant is terminated by a …STOP_SEC… constant as specified in the AUTOSAR Memory Mapping requirements.
Usage
| Feature | RAM | ROM |
Table 1: ARM Cortex R4 Memory Usage
NvM Blocks
None
Compiler Settings
Preprocessor MACRO
None
Optimization Settings
None
Appendix
2 - PwrLimr_MDD
Module Design Document
For
PwrLimr
19-Oct-2017
Prepared For:
Software Engineering
Nexteer Automotive,
Saginaw, MI, USA
Prepared By:
Brendon Binder,
Nexteer Automotive,
Saginaw, MI, USA
Change History
| Description | Author | Version | Date |
| Initial Version | Nick Saxton | 1.0 | 14-Aug-2015 |
| As per FDD v 2.0.1 | Krishna Anne | 2.0 | 09-Nov-2016 |
| Implemented FDD v 4.0.0 | Brendon Binder | 3.0 | 19-Oct-2017 |
Table of Contents
1 PwrLimr High-Level Description 5
2 Design details of software module 6
2.1 Graphical representation of PwrLimr 6
2.2 Data Flow Diagram 6
2.2.1 Component level DFD 6
2.2.2 Function level DFD 6
3 Constant Data Dictionary 7
3.1 Program (fixed) Constants 7
3.1.1 Embedded Constants 7
4 Software Component Implementation 8
4.1 Sub-Module Functions 8
4.1.1 Init: PwrLimrInit1 8
4.1.1.1 Design Rationale 8
4.1.1.2 Module Outputs 8
4.1.2 Per: PwrLimrPer1 8
4.1.2.1 Design Rationale 8
4.1.2.2 Store Module Inputs to Local copies 8
4.1.2.3 (Processing of function)……… 8
4.1.2.4 Store Local copy of outputs into Module Outputs 8
4.1.3 Per: PwrLimrPer2 8
4.1.3.1 Design Rationale 8
4.1.3.2 Store Module Inputs to Local copies 8
4.1.3.3 (Processing of function)……… 8
4.1.3.4 Store Local copy of outputs into Module Outputs 8
4.2 Server Runnables 9
4.3 Interrupt Functions 9
4.4 Module Internal (Local) Functions 9
4.4.1 AssiLimCdn 9
5 Known Limitations with Design 10
6 UNIT TEST CONSIDERATION 11
Appendix A Abbreviations and Acronyms 12
Appendix B Glossary 13
Appendix C References 14
PwrLimr High-Level Description
Refer FDD
Design details of software module
Graphical representation of PwrLimr

Data Flow Diagram
Component level DFD
Function level DFD
Constant Data Dictionary
Program (fixed) Constants
Embedded Constants
Local Constants
| Constant Name | Resolution | Units | Value |
|---|---|---|---|
| BIT1MASK_ULS_U08 | 1 | Uls | 2U |
| Refer DataDict.m |
Software Component Implementation
Sub-Module Functions
Init: PwrLimrInit1
Design Rationale
Refer FDD
Module Outputs
Refer FDD
Per: PwrLimrPer1
Design Rationale
Refer FDD
Store Module Inputs to Local copies
Refer FDD
(Processing of function)………
Refer FDD
Store Local copy of outputs into Module Outputs
Refer FDD
Per: PwrLimrPer2
Design Rationale
Refer FDD
Store Module Inputs to Local copies
Refer FDD
(Processing of function)………
Refer FDD
Store Local copy of outputs into Module Outputs
Refer FDD
Server Runnables
None
Interrupt Functions
None
Module Internal (Local) Functions
AssiLimCdn
| Function Name | AssiLimCdn | Type | Min | Max |
| Arguments Passed | FildTqLim_Uls_T_f32 | float32 | 0.0F | 1.0F |
| BrdgVltg_Volt_T_f32 | float32 | 6.0F | 26.5F | |
| Return Value | None | N/A | N/A | N/A |
Design Rationale
See “Asst_Lmt_Condition_Determination” block in the Simulink model of the design.
Known Limitations with Design
None
UNIT TEST CONSIDERATION
None
Abbreviations and Acronyms
| Abbreviation or Acronym | Description |
|---|---|
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 | EA4 Software Naming Conventions.doc | 01.01.00 |
| 4 | Software Design and Coding Standards.doc | 2.1 |
| 5 | FDD – SF019B Power Limiter | See Synergy subproject version |