当前位置：网站首页>Function introduction of canbedded component

Function introduction of canbedded component

2022-07-04 10:51:00 【picoasis】

Article content reference CANbedded | Vector

Catalog

Expand ——CANbedded Gateway

canbeded yes Vector One of the software tool chains for automotive electronics development .

canbeded It is a collection of components , Provide basic communication functions for automotive applications .

canbeded It is a reusable component provided in the form of source code , Include CAN,Driver, Interaction layer (IL), Network management (NM), Transport layer (TP), Diagnostic layer (CANdesc), Communication measurement and calibration protocol (CCP,XCP) And communication control layer (CCL) Wait for multiple modules .

canbeded The basic software of allows ECU adopt CAN Bus exchange information . As ECU Part of the software , It deals with OEM Specified and Communication related tasks .

Use CANbeddedECU Be able to effectively communicate with others in the vehicle ECU And the external maintenance tester .CANbedded Can be applied to most OEM And microcontrollers .

CANbedded Allow users to focus entirely on functional software , because CANbedded Component stack processing passes CAN Sending and receiving conform to OEM The news of .

chart ：canbede Basic software component functions

The picture is from CANbedded | Vector

Realization ：CANbedded Available for all applications The simple interface （API）, This allows users to quickly and easily integrate into ECU In software .CAN The component sends asynchronous events through configurable callback functions （ If received CAN news 、 Bus wakeup or different error states （ Assertion ）） Route to application . You can configure the generated API And the exact set of callbacks , To adapt them to the needs of specific applications .

CANDriver

CANDriver It provides a hardware independent interface for the higher software layer . This enables higher software layers to be used or reused independently of the platform .

All necessary settings , For example, the hardware accepts the parameters of the filter or bus timing register , All are configured . come from Vector Configuration tools GENy Preselections for configuring these filters and registers are provided .CAN The drive provides the following basic functions ：

CAN Initialization of the controller
send out CAN Information
CAN Reception of information
Overrun and error handling （ Bus off ）
Send notification through wake-up events

IL

IL Yes OEM Specific models are available , And signal oriented operation . It is responsible for ：

Send the message according to the transmission type of the included signal （ loop 、OneEvent、IfActive etc. ）
Timeout monitoring of receiving messages and signals
Notification of sending and receiving signals

NM

The main task of network management is to manage the network ECU The state of sleep and wakefulness . This function is provided by NM CANbedded Software component processing , This component has different variants . according to OEM requirement , Use OSEK NM、AUTOSAR NM Or others OEM specific NM Algorithm

TP

By default ,CANbedded The transmission protocol conforms to ISO 15765-2. It can also provide OEM specific TP variant , for example VWTP or MCNet.ISO 15765-2 The compliance variant is 1999 Annual variant or 2004 The annual variant provides , And different addressing methods can be used （ normal 、 Expand 、 Normal fixation 、 blend ） deliver

CCL

CCL To simplify the ECU In software CAN The driver 、IL、TP、NM And others CAN Option gateway 、J1939 and CANdesc etc. CAN Integration of software components . It manages the defined system state （ Electrify 、 start-up 、 To turn it off 、 stop it / sleep 、 normal ） And communication status （ Network request 、 Network release ）.CCL Provide the following functions ：

Initialize the scanned software components
Coordinate state transition （ Wake up and GotoSleep）
Call periodic functions of embeddable software components , Such as timer task or status task .
Control bus transceiver

MICROSAR OS

It is a preemptive real-time multitasking operating system , Its performance is optimized for microcontroller . According to the scalability level 1 Operating system of AUTOSAR The specification is based on OSEK/VDX standard . That's why MICROSAR. The operating system is even non AUTOSAR Environment provides another option

XCP

Calibration protocol

CANbedded J1939

Provide heavy vehicles and agricultural machinery ECU Basic communication functions between .

Expand ——CANbedded Gateway

The picture is from ： Embedded software - CANbedded - Vector Informatik GmbH - foundation

CANbedded Gateway Contains complex gateway mechanisms , Used to receive all messages and signals , Then send it to another network according to the filtering and conversion rules . Users can choose from ：