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TMS570LC4357-EP: How to use Energy trace for TMS570LC4357-EP on CCS?

Sho Kobori
Intellectual 640 points
Part Number: TMS570LC4357-EP
Other Parts Discussed in Thread: TMS570LC4357

Hi support team,

I'm using TMS570LC43XX-HDK, I would like to check power consumption for TMS570LC4357.

I have XDS560v2-PRO TRACE and TMS570LC43XX-HDK.

Could you please tell me about Energy Trace mode whether it can be used.


Thanks,

Sho

  • 0
    TI__Guru**** 197576 points

    Hi Sho,

    Please refer to the datasheet (5.7) for device power consumption.

    The CCS Energy Trace doesn't support TMS570 devices.

  • 0 in reply to QJ Wang
    Intellectual 640 points

    Hello QJ,

    Thank you for your information.

    This document is described TMS570LC4357 of maximum power consumption, right?

    I would like to measure Power consumption when used my implementation code, because I need to know actual power consumptions on the target MCU.

    Maybe, I think this measurements is better using evaluation board, but If you know tequnique of simulation this MCU to measure power consumption, could you please advice it.

    Thanks,

    Sho

  • +1 in reply to Sho Kobori
    TI__Guru**** 197576 points

    Hi Sho,

    The typical CPU core power consumption is 510mA, and maximum is 99mA. When running CPU LBIS or RAM PBIST, the maximum CPU core power consumption is 1375mA. The maximum value is got with max operating temp, max operating voltage, and maximum CPU frequency (300MHz).

    There is an equation in the footnote that shows the effects of voltage, temp, and frequency on this number. If you take footnote 2, it says that in the maximum power consumption case, the 510mA number could be derated by 1.8mA/MHz with frequency.

    You probably won't easily reproduce the numbers listed in datasheet in your own testing.

  • 0 in reply to QJ Wang
    Intellectual 640 points

    Hello QJ,

    Thank you for your support.

    Thanks,

    Sho