Preface ：

Hello, engineers , Long time no see .
This year, the epidemic has been repeated , Do engineers give themselves time to recharge during the role transformation of work and anti epidemic ？

When it comes to vehicle Ethernet , It's not a new word for a long time , Many engineers enter the field of automotive electronics from CAN、LIN And other basic or commonly used protocols , Then I began to contact with Ethernet related knowledge .CAN、LIN And other vehicle communication protocols are widely used in today's vehicles , However, due to the limitations of the agreement itself , It is difficult to support the further development of automotive intelligent networking , Vehicle Ethernet will play an important role in the new generation of automotive network architecture , Vehicle Ethernet is also the overall trend and direction in the current industry ,

Although the topic I want to talk to you today is relatively large , But our focus this time is not on the Ethernet development and testing scheme and process itself , But Ethernet development and testing tools VN5000 Series hardware .

introduce

be familiar with vector Tool chain engineers should know , stay 2021 year ,Vector Ethernet interface card VN5610A and VN5640 The equipment has been discontinued , Corresponding substitute products VN5620 and VN5650 Began to push to the majority of engineers . With the promotion of new equipment ,VN5000 The new configuration mode built in the series of devices has also been met with engineers .

The new configuration mode breaks the correspondence between the single working mode of equipment and the single channel under the traditional configuration mode , So that engineers can use more flexibly VN5000 Series of devices and applied to more development and testing scenarios .

Next, we'll take VN5000 The main application functions of the series of devices explain the device configuration mode and related application scenarios .

This issue introduces the second mode ： Direct Mode

The first one is TAP/Bypass Mode see ： Ethernet development and testing , Have you done this step right (1)
The third media conversion & For port mirroring mode, see ： Ethernet development and testing , Have you done this step right (3)

2、 Direct Mode

I believe many engineers have seen the example of bypass above , See here already can draw inferences from one instance . Or I have started thinking in the above example , Why not put the controller directly A Remove from the network , Connect separately with network cable VN5000 Series equipment ？

seeing the name of a thing one thinks of its function , Direct Mode , It refers to direct VN5000 Series Ethernet equipment is connected with the tested part or Ethernet controller , Realize the tested part and VN5000 Mode of Ethernet communication between .

Let's take another chestnut :
The engineer Tom You need to purchase Ethernet equipment recently VN5650 Integrated into the test cabinet , For Ethernet test and Simulation of single piece .

But engineers Tom After getting the relevant harness and equipment, I don't know how to allocate the route , And how to layout and connect the equipment harness in the cabinet .（ If I had known, I would have paid more for integration ）

So in the engineer Jerry Recommended by ,Tom To beihui technical support email [email protected] I wrote an email for advice .

According to the remote guidance of beihui engineer ,Tom Integrate the harness into the wiring trough , And route VN5650 Each channel of is connected to a tested controller , After writing the corresponding direct connection configuration , The debugging and Simulation of a single controller is successfully realized .

reflection

Tom： I found that both bypass mode and direct connection mode can realize the collection of communication data .
Jerry： So what is the difference between the usage scenarios of the two modes ？

The application scope of direct connection mode is not consistent with that of bypass , The data acquisition in bypass mode is to ensure that the network topology of the whole vehicle or domain is not destroyed , And it can be used in scenarios that ensure network integrity ; In the direct connection mode , We usually connect the tested part separately , Not forming a complete network topology , It is impossible to restore or realize the state of all nodes in the real network through harness connection .

The first one is TAP/Bypass Mode see ： Ethernet development and testing , Have you done this step right (1)
The third media conversion & For port mirroring mode, see ： Ethernet development and testing , Have you done this step right (3)