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IP communication with INIC? ? ?
question!
Is IP communication possible with INIC based on MOST?
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answer
yes. Is possible!
Recently, Ethernet technology is being implemented in automobiles, but long before that, INIC has supported the Ethernet Channel function according to the MOST standard. In order to realize this function easily, the mechanism of INIC itself is a key point, but the software perspective is also an important point.
As mentioned earlier, Linux already supports the INIC driver, but using this driver makes the INIC look like a NIC (network interface controller) at the OS level. This driver is a device that facilitates software implementation on the application interface.
Therefore, using INIC and the MOST Linux driver, in addition to streaming data such as audio/video, it is possible to superimpose IP data communication and realize data transfer between ECUs.
As mentioned above, using INIC makes it easy to implement not only from a hardware perspective but also from a software perspective.
Use case for transferring IP data with INIC
As a possible use case, INIC can incorporate IP data transfer such as TCP/UDP in the rear seat entertainment system, which has the advantage of reducing separate Ethernet dedicated ICs and physical layers (cables/connectors). The INIC that supports the Ethernet channel function has been released for 50M and 150M. In the first place, isn't 50M or 150M enough as a total bandwidth? Some people say that, but in video-on-demand applications, if a band of about 10M can be stably secured, it is considered to be a necessary and sufficient data band.
From another point of view, there is the OTA (repro) function of ECUs in automobiles. This function, which utilizes telematic ECUs, is already being implemented in mass-produced vehicles, but in the future, when transferring data for this function between infotainment ECUs, it is also possible to transfer it in IP data format.
INIC is capable of convoluting and transferring various data formats such as audio, video, control, and IP data, so it is thought that there will be more and more places where it can be used.
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