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TI ezdsp F28335 vs Launchpad: LAUNCHXL-F28377S

simao berbartov
Prodigy 85 points

Hi, I'm working on a project to build and control an unmanned aerial vehicle (UAV), and I'm planning to buy a powerful controller where I can test and implement different algorithms to control 4 DC brushless motors.
so I'm a tittle bit confused on how to pick the right controller, some friends tells me that the eZdsp f28335 is a good choice for me for about 400 dollars. but I found a cheap Launchpad: LAUNCHXL-F28377S with the same specification or even better for about 30 dollars! . I really can't understand why there is a huge gap in pricing between the two kits?!

  • 0
    TI__Guru 60865 points
    Hi Simao,

    I'd probably go with a launch pad.

    Are you trying to control all 4 motors with one controller, or use one controller for each motor?

    The F2837x family is probably your best bet if you want to try to control all 4 with one controller...some of these parts have 2 x C28x CPUs + 2 x CLA co-processors. You are going to want to look carefully at the ePMW and ADC channel counts to see if this can meet your needs.

    If you want 1 controller per-motor, lower cost C28x parts like F2802x or F2806x should definitely be able to do the job (these also have low-cost launchpad development kits).