AbsHwPosSCom_MDD

Module -- AbsHwPosScom

This module determines the handwheel position representing the angle of the output shaft without using a physical column position sensor.

The function uses the Motor Position to provide an estimate of the handwheel position. In addition this function also uses the absolute hw position transmitted on the serial communication interface to provide and estimate of the HwPos. value.

High-Level Description

(Description must be within 8-10 lines.)

Figures

Diagram – Function Data Sharing

Diagram – Function (Name)

Variable Data Dictionary

For details on module input / output variable, refer to the Data Dictionary for the application. Input / output variable names are listed here for reference.

(Note: Full variable names required in table.)

(Note: All global variables including End Of Line data used should be shown here)

Module Internal Variables

This section identifies the name, range and resolutions for module specific data created by this module. If there are no range restrictions on the variable, the term “FULL” is placed into the table for legal range.

User defined typedef definition/declaration

This section documents any user types uniquely used for the module.

Constant Data Dictionary

Calibration Constants

This section lists the calibrations used by the module. For details on calibration constants, refer to the Data Dictionary for the application.

Program(fixed) Constants

Embedded Constants

All embedded constants whose values are provided in Eng units will be evaluated to the equivalent counts by using the FPM_InitFixedPoint_m() macro within the #define statement.

Local

Global

This section lists the global constants used by the module. For details on global constants, refer to the Data Dictionary for the application.

Module specific Lookup Tables Constants

(This is for lookup tables (arrays) with fixed values, same name as other tables)

Functions/Macros used by the Sub-Modules

Library Functions / Macros

The library and functions / Macros that are called by the various sub modules are identified below,

1. FPM_FloatToFixed_m

2. LPF_SvUpdate_s16InFixKTrunc_m

3. LPF_OpUpdate_s16InFixKTrunc_m

4. Limit_m

5. FPM_FixedToFloat_m

6. Min_m

7. Max_m

8. LPF_SvInit_s16InFixKTrunc_m

Data Hiding Functions

1. Rte_Call_NxtrDiagMgr_SetNTCStatus

Global Functions/Macros Defined by this Module

Global Function #1

Description

(Place flowchart/design for local function)

Local Functions/Macros Used by this MDD only

Local Function #1

Description

(Place flowchart/design for local function)

Local Function #2

Description

(Place flowchart/design for local function)

Local Function #3

Description

(Place flowchart/design for local function)

Local Function #4

Description

(Place flowchart/design for local function)

Local Function #5

Description

(Place flowchart/design for local function)

Local Function #6

Description

Software Module Implementation

Runtime Environment (RTE) Initial Values

This section lists the initial values of data written by this module but controlled by the RTE. After RTE initialization, the data in this table will contain these values.

Initialization Functions

(Note: For multiple init functions, insert new headers at the “Header 2” level – subset of “5.1 Initialization Functions” and follow the same sub-section design shown below)

Init: AbsHwPosScom_Init1

Design Rationale

(Add design rationale specifically related to this FUNCTION. If none required, place the text “None”)

Module Outputs

(Initialize all module outputs in this section)

Periodic Functions

Per: AbsHwPosScom_Per1

Design Rationale

Program Flow Start

Rte_Call_AbsHwPosScom_Per1_CP0_CheckpointReached()Store Module Inputs to Local copies

Processing

Store Local copy of outputs into Module Outputs

Program Flow End

Rte_Call_AbsHwPosScom_Per1_CP1_CheckpointReached()

Per: _Per2

Design Rationale

(Add design rationale specifically related to this FUNCTION. If none required, place the text “None”)

Program Flow Start

Rte_Call_AbsHwPosScom_Per2_CP0_CheckpointReached()Store Module Inputs to Local copies

Program Flow End

Rte_Call_AbsHwPosScom_Per2_CP1_CheckpointReached()

Per: _Per3

Design Rationale

(Add design rationale specifically related to this FUNCTION. If none required, place the text “None”)

Program Flow Start

Rte_Call_AbsHwPosScom_Per3_CP0_CheckpointReached()Store Module Inputs to Local copies

Program Flow End

Rte_Call_AbsHwPosScom_Per3_CP1_CheckpointReached()

Fault Recovery Functions

Shutdown Functions

Interrupt Functions

Serial Communication Functions

AbsHwPosScom_Scom_HwPosSrvSetToZero

Design Rationale

Program Flow Start

Store Module Inputs to Local copies

N/A

Processing

HwPosSrvSetToZero_Cnt_M_lgc = Par

Store Local Copy Of Outputs into Module Outputs

N/A

Program Flow End

N/A

AbsHwPosScom_Scom_HwPosSrvRead

Design Rationale

Program Flow Start

Store Module Inputs to Local copies

N/A

Processing

*Par = HwPosSrvSetToZero_Cnt_M_lgc

Store Local Copy Of Outputs into Module Outputs

N/A

Program Flow End

N/A

Execution Requirements

Execution Sequence of the Module

(Describe in words relevant details about the execution sequence of the different sub modules.)

Execution Rates for sub-modules called by the Scheduler

This table serves as reference for the Scheduler design

Execution Requirements for Serial Communication Functions

Memory Map Definition Requirements

Sub Modules (Functions)

This table identifies the software segments for functions identified in this module.

Local Functions

This table identifies the software segments for local functions identified in this module.

Known Issues / Limitations With Design

Note1: Deviation from FDD: Cal k_MtrToHw_Res_Conversion is not used for Scaled_MtrPos calculations in this software. Refer FDD- 05D section 5.1.2.2.(This cal was for a fixedtype implementation).
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