12.2. Bourns SAS driver - BrnsSteerWhlAgSnsrDrvr

• Overview

• Functions

• Ports

• Parameters

Id	BrnsSteerWhlAgSnsrDrvr
Version	main
Title	Bourns SAS driver
System	Steering
Document Type	Application Software Component Specification Preview

12.2.1. Overview

The Bourns steering angle sensor (SAS) software component provides steering wheel angle data to other subsystems. Its main purpose is to read the raw sensor data from the CAN bus, process it, and output the steering wheel angle and the corresponding rate. The component also handles the calibration routine for the Bourns SAS.

12.2.2. Functions

Title	Description
Process Bourns SAS Data	Reads the raw Bourns SAS data from the CAN bus, applies the configured steering angle sign convention, and outputs the processed steering wheel angle and rate. Also determines if the angle data is valid.
Manage Bourns SAS Calibration	Controls the calibration routine for the Bourns SAS. Starts calibration when requested, monitors progress, and indicates when calibration is complete. Outputs calibration status information.

12.2.3. Ports

	Id	Direction	Data Type	Dimensions	Unit	Keywords
1	CanInpBrns	Incoming	Bus: CAN_Bourns_Tx_t	[-1]	inherit	Can Input Bourns
2	CanInpBrnsVld	Incoming	boolean	[1]	inherit	Can Input Bourns Valid
3	SasCalStrtReq	Incoming	boolean	[1]	inherit	Sas Calibration Start Request
4	SasCalResReq	Incoming	boolean	[1]	inherit	Sas Calibration Result Request
5	SteerAgSnsrTyp	Incoming	uint8	[1]	inherit	Steering Angle Sensor Type
6	BrnsSteerWhlAg	Outgoing	single	[-1]	inherit	Bourns Steering Wheel Angle
7	BrnsSteerWhlAgRate	Outgoing	single	[-1]	inherit	Bourns Steering Wheel Angle Rate
8	BrnsSteerWhlAgIsOk	Outgoing	boolean	[-1]	inherit	Bourns Steering Wheel Angle Is Ok
9	BrnsSteerWhlAgIsCal	Outgoing	boolean	[-1]	inherit	Bourns Steering Wheel Angle Is Calibration
10	CanSndBrnsCfg	Outgoing	Bus: CAN_Bourns_Config_t	[-1]	inherit	Can Send Bourns Configuration
11	CansndOutBrnsCfg	Outgoing	boolean	[-1]	inherit
12	BrnsSasCalStrtInfo	Outgoing	uint8	[1]	inherit	Bourns Sas Calibration Start Information
13	BrnsSasCalResReq	Outgoing	boolean	[1]	inherit	Bourns Sas Calibration Result Request
14	BrnsSteerAgSnsrCalProgs	Outgoing	uint8	[1]	inherit	Bourns Steering Angle Sensor Calibration Progress
15	BrnsSasCalResInfo	Outgoing	uint8	[1]	inherit	Bourns Sas Calibration Result Information

12.2.4. Parameters

	Id	Data Type	Dimensions	Range	Unit	Description	Keywords
1	SasbrnsCalTi	single	[1,1]	Min: , Max:	s	Bourns Angle Sensor Calibration Time Interval	Sasbrns Calibration Time
2	SasbrnsSteerWhlAgSign	boolean	[1,1]	Min: , Max:		Bourns Steering Angle Sign convention: true - positive; false - negative	Sasbrns Steering Wheel Angle Sign