Skip to content

Latest commit

 

History

History
45 lines (30 loc) · 2.79 KB

README.md

File metadata and controls

45 lines (30 loc) · 2.79 KB

AUTOSAR_project_CDD

The purpose of this project is to learn about AUTOSAR, how to integrate and see how it work.

This is an example project for integration of a new component "AUTOSAR CDD" that implements some specific requirements, listed below:

  • AUTOSAR_CDD must save a history of the car
  • AUTOSAR_CDD must read wheel speed, mileage and engine speed
  • AUTOSAR_CDD must provide a history of data to the Tester/Service
  • AUTOSAR_CDD must provide information to other ECUs in the car

The new component "AUTOSAR CDD" is able to connect to each Autosar layer, described in the below picture:

AUTOSAR_layers

> Connecting AUTOSAR_CDD component with SystemStack by implementing the below requirements (workflow detailed in the below picture):

  • AUTOSAR_CDD must read every 10ms the signals that provide information about Wheel Speed, Engine RPM and Car Mileage.
  • AUTOSAR_CDD must be initialized before BswM_Init().
  • AUTOSAR_CDD must enter the stop state before the EcuM_ShutDown() interface is called

Connection between AUTOSAR_CDD-SystemStack detailed in the next picture:

AUTOSAR_CDD-SystemStack

> Connecting AUTOSAR_CDD component with DiagStack by implementing the below requirements (workflow detailed in the below picture):

  • Using the read service (0x22) configured in DCM for the defined DIDs, the maximum speed and rpm at T time will be read.

    • To read the maximum speed, the DID 0xAABB is used, configured in DCM
    • To read the maximum speed, the DID 0xAACC is used, configured in the DCM
    • To read the mileage, the DID 0xAADD is used, configured in DCM

  • If the read mileage value form the received signal is less with 100 km than the value written to the non-volatile memory, then AUTOSAR_CDD will set an error.

    • The set error will have the Id 0xD12244, configured in DEM

DiagStack-Status

> Connecting AUTOSAR_CDD component with ComStack by implementing the below requirement (workflow detailed in the below picture):

  • AUTOSAR_CDD must read Mileage, Speed and Engine RPM in a cyclical mode, once every 10ms

ComStack-CDD

> Connecting AUTOSAR_CDD component and all the stacks with RTE by implementing the below requirements:

  • AUTOSAR_CDD must write and read blocks for Mileage, Wheel Speed and Engine Speed using RTE interfaces.
  • AUTOSAR_CDD must call the DEM interface to set the DTC via RTE.
  • AUTOSAR_CDD must call the COM interface to read the Mileage via RTE.