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J722SXH01EVM: How Improve CAN Gateway speed and reduce latency

Aditya Pawar
Prodigy 20 points
Part Number: J722SXH01EVM

Tool/software:

1)How to improve CAN gateway speed - Is there any Hardware CAN gateway engine in TI J722s EVM processor to improve speed and lower the latency? 

2)And What is recommended architecture for high speed ,low latency CAN gateway implementation on J722s?(using Linux kernel space)

3)Is <150 µs Latency Achievable for CAN Gateway on TI J722S EVM?

  • 0
    TI__Mastermind 49416 points

    Hello,

    Please share the CAN clock frequency and sampling point.

    Regards

    Tarun Mukesh 

  • 0 in reply to Tarun Mukesh Puvvada
    TI__Guru 51023 points

    Hi Aditya,

    As Tarun mentioned, more information would be good. Please share any methods or commands with logs that you are using to benchmark CAN speed and latency. That should tell us frequency, sampling point, and more. That should help with point #1 and #3.

    But in general, the Linux kernel driver for the MCAN controller is from Bosch, with another kernel driver for TI TCAN1042 CAN transceiver PHY. At userspace, CAN can be controlled using SocketCAN/can-utils. Basically, a lot of things coming from 3rd party and community, so I would like some clarification on what is desired for point #2. 

    Regards,

    Takuma