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TMS320F2811 alternate part

kent gu
Intellectual 685 points

Other Parts Discussed in Thread: TMS320F2811, CONTROLSUITE

Hi,

Now we are using TMS320F2811 DSP, use its 2 UART ports, CAN, FFT 12bit AD, basic FFT, SPI, quarder encoder and  GPIO. Now we encounter one issue, which is the flash space  will run out, I want to know look for

  • A similar TI chip, which have bigger flash space and ram space except 2 UART ports, CAN, FFT 12bit AD , FIR, IIR, basic FFT, and SPI, quarder encoder .
  • Simple SW migration.

Best Regards,

Kent

  • 0
    Intellectual 685 points
    one more requirement is encoder A,B sample
  • 0 in reply to kent gu
    TI__Guru 57255 points

    Hi Kent,

    The device family that I would recommend looking at is the TMS320F2833* series. 
    http://www.ti.com/product/tms320f28335

    This device family is newer than the F281* family, but is also not very new.  As a result, more compatibility will likely exist than if you went with a newer family.  The F2833* family runs up to 150MHz, has up to 512 kW of memory, has DMA, and has a floating-point unit.

    If you move to the F2833* family the following documents may be helpful:
    http://www.ti.com/lit/spraaq7http://www.ti.com/lit/spru566

    Code examples for the F2833* can be found in controlSUITE.

    The main challenge in migrating to the F2833* will be in using the ePWM, eCAP or eQEP peripherals instead of the Event Manager.  However, the new peripherals have significantly more features, which may end up being helpful for your application.

    ===

    If you find that you want more than CPU processing power (more than 150MHz), the newer F2837* family may be interesting to you.

    Hopefully this helps!


    Thank you,
    Brett