Canoe tutorial

Preface

CANoe It's Germany Vector A bus development environment designed by the company for the development of automobile bus , Full name CAN open environment. Same as Vspy equally ,CANoe Integrated network monitoring 、 Data acquisition / Record 、 Node simulation 、 The diagnosis 、 Automatic test and other functions ; Its rich functions and configuration options make it also common in the automotive electronics industry . Next, for CANoe Common operations of , It can be divided into the following points ：

1. CANoe New construction of the project ;
2. adopt Trace The tool checks the interactive message content ;
3. adopt Logging Save the log file ;
4. establish IG Send message ;
5. adopt Graphics Interface grabs signal waveform ;
6. load cdd file ;
7. Filter message ID Reception ;
8. other ;
   

New project

open CANoe Software , On the toolbar File Click on the New, Double click to select the created template , Save the created cfg Engineering documents . as follows ：

Bus topology diagram

System variables

System variables It's a special variable , Used to describe a special state or record measurement data . Generally, there are two kinds of definitions: system definition and user definition , Their role is in their respective command space . There is no difference in function , Are equivalent to global variables , Facilitate software data interaction ; Use system variables first .

One 、 Creation of system variables

1、 First click on Environment Under the System Variable

2、 Click... In the pop-up window New System Variable

3、 The parameters needed to create system variables on the pop-up page

Be careful ：

• Namespace： Defines the name of the system variable group . If you need to create a secondary system variable group in a large system variable group , You need to use the Name1::Name2 Format .
• Name： The specific name of the system variable , Subsequent use will directly reference the name .
• Data type： Choose the type you want , All types supported in the drop-down menu can be seen in the screenshot .
• Location： The path where the system variable group is stored 、 Name and format . I used in my project XML/vsysvar Two formats .
• Values： Initial value 、 minimum value 、 Maximum 、 Company 、 Value table .

4、 Define the namespace and variable name selection 32 bit signed type , Click on ok that will do

5、 adopt copy Complete the creation of other variables

6、 You can edit the copied variables by double clicking

Two 、 The use of system variables

After the system variables are defined , It is equivalent to that we define a Global variables . How to use , We can go through CAPL Internal functions to complete the use .

1、 Create a new Network Node

In turn, click Simulation–> simulation setup–> find simulation setup forms –> Right click Network Node choice Insert Network Node

2、 Create a test.can Files are used to write code

So that we can go straight to test.can Write our code .

establish DBC file

1、 In turn, click tools --> CANdb++ Editor

2、 Click... In the pop-up window File–>Create Database...

3、 Select as shown in the pop-up window CANTemplate.dbc, Click on OK

4、 Give the file a name , And store the file in the location you want to store

5、 Click on MyMsg, The right choice New

6、 To configure Name and ID

7、 stay Signals Now create a signal BusSwitch, The signal setting is shown in the figure below , single click ok preservation .

8、 take BusSwitch Drag to MyMsg below , such BusSwitch It becomes a message MyMsg A signal

9、 So far, the database has been established , Save directly to exit

10、 Import our database , Right click Databases Click on add

CANoe To configure

CANoe The hardware configuration is mainly the choice of baud rate and Protocol . The specific operations are mainly Hardware Medium Network Hardware in .

If you also want to filter the packets of non target frames directly from the hardware layer , You can add filters in the settings . It can be downloaded from DBC Choose from , You can also manually fill .

Mask Express CAN The mask of the filter in the controller , Don't elaborate too much here . If you want to know more about , Please check by yourself Vectore Hardware manual .

If the project has been created CAN The number of networks does not meet the current demand , Can be added by yourself . The specific adding path is shown in the figure below . The added quantity cannot exceed CANoe The maximum number of channels .

Add filter

Right click on the box and select Insert Event Filter->CAN

The configuration is as follows ：

Configure filters

1、 double-click CFB

2、 Add to filter out ID Pass filter（ According to the ID）, Can pass ID Or database .

Note the corresponding channel on the right

Reference article

• CANoe Common operations （CANoe Series one ）