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F28069 vs f28335 for Sensorless Control

Troy Beechner
Prodigy 150 points

I am wanting to put together a PMSM sensorless controller running with at a loop rate of >50 kHz. I am currently using the f28035 running at 10 kHz, and the ISR uses ~28% of my loop time. I was looking for guidance on selecting the best microcontroller for my application, that being either the 90 MHz Picollo or 150 MHz Delfino. I've added a bunch of features to the current setup so was looking for the solution that would work and require the least amount of rework by porting over to a new controller. 

Any suggestions are appreciated. Thanks,

Troy

  • 0
    Guru 192875 points

    Hi Troy,

    Troy Beechner said:
    I've added a bunch of features to the current setup so was looking for the solution that would work and require the least amount of rework by porting over to a new controller. 

    F28069 seems the best option but if you're looking for a future proof solution wherein you want to keep adding features at a regular intervals without changing the hardware setup then... you should consider F28335 (pretty much faster with lot of memory).

    Regards,

    Gautam

  • 0 in reply to Gautam Iyer
    Prodigy 150 points

    Yea, that's kind of what I thought. Thanks for the suggestion.

    Troy

  • 0 in reply to Troy Beechner
    Guru 192875 points

    Troy Beechner said:
    Yea, that's kind of what I thought. Thanks for the suggestion.

    No Problem! (Please close the thread if your primary query has been answered)

    Goodluck & Regards,

    Gautam