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Fusion and USB to GPIO with TMDXEVM6618LXE?

Henrik Persson
Prodigy 60 points
Other Parts Discussed in Thread: UCD9240

Hi!

I am working on a way to measure the power consumption of a TCI6616 during different circumstances (e.g. activity, temperature, etc.). I've read about the 'Fusion Digital Power Designer' GUI and the USB-to-GPIO EVM. First of all, am I on the right track or is there a simpler method? =)

The TMDXEVM6618LXE I have has a 5-pin PMbus header, that according to the manual should work with something called 'Smart-Fusion GUI' and an 'USB to GPIO pod'. But when I read about the USB-to-GPIO EVM it says it has a 10-pin ribbon connector only. Are there maybe different versions of the USB-to-GPIO EVM?

Bsr /Henrik 

 

  • 0
    TI__Guru**** 151040 points

    This digital power forum and the tools you refer to and meant to interface with our digital power controller parts, UCD9240 etc.  This is very different than measuring the power consumption of your DSP.  I'll move you over to the DSP forum.

  • 0
    TI__Mastermind 30825 points

    Henrik,

    First TCI66xx devices are only supported through your local FAEs.  They are not supported on the forums.  If you're not sure who your local FAE is, then please contact your local Sales representative.

    As for power consumption, if this is being done from a board design needs perspective (both power supply needs and thermal solutions,) please use the Power Consumption Spreadsheet for the device.  This spreadsheet is built to provide the worst case power consumption for the scenario (Temp, Activity, Etc.)  What you measure on an EVM may be significantly lower than this worst case scenario since silicon falling in the nominal or lower end of the process will have lower power consumption in general, but designs should be made for the worst case power consumption as provided by the power spreadsheet.

    Best Regards,

    Chad

  • 0 in reply to Chad Courtney
    TI__Genius 13700 points

    I would follow Chad's recommendation.  But if you do want to make direct measurements on the board then you just need to make a cable to interface between the 5 pin header that is provided on the 6618EVM and the 10-pin header on the USB-to-GPIO ribbon cable.  The pinouts for the headers should be avaiable in the documentation, I know its in the USB-to-GPIO User Guide, but I don't have a copy of the 6618 EVM schematic.  Only the Data, Clock, Alert and ground connections need to be included, if 3.3V is included on the 6618 EVM header then just leave it disconnected.