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MSP432E401Y: Estimating CPU load to serve Ethernet TCP/IP

Hideaki Nambu
Mastermind 9165 points
Part Number: MSP432E401Y

Hello,

Do you have any material to estimate the load of the M4F core to serve TCP/IP?

My customer application sometimes receives short commands and response. The data is not a kind of streaming, therefore the load "on the cable" would be lower.

Having TI reply I would like to help my customer to estimate the CPU load.

  • 0
    TI__Mastermind 22580 points
    Hello Hideaki,

    I don't think we have any collateral that can estimate the load of Cortex M4F. I will try to find out if we have any.

    Which TCP/IP Stack are you planning on using? SimpleLink MSP432E4 SDK has two TCP/IP stacks: TI's Network Developer's Kit (NDK) and Open Source lwIP?

    Thanks,
    Sai
  • 0 in reply to Sai Reddy
    Mastermind 9165 points
    Sai,
    Thank you for your response.
    Honestly we have not decided that NDK/lwIP.
    I would like to suggest my cuswtomer to choose NDK because it is a TI product. We can ask a question here.
  • 0 in reply to Hideaki Nambu
    TI__Mastermind 22580 points
    Hello Hideaki,

    I could not find any collateral that can estimate the load of the core.

    One scheme I can think of is to use a GPIO to show how busy the CPU is.

    When idle turn a GPIO high (indicating CPU is idle). When busy turn the GPIO low. This kind of scheme is easier to architect with an RTOS, but if the code is simple then it can be done for a non RTOS application too.

    Thanks,
    Sai

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