• State
  • Locked Locked
  • Replies 4 replies
  • Subscribers 84 subscribers
  • Views 449 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Motorware version

Eui-Heon Jung
Expert 1125 points

Other Parts Discussed in Thread: MOTORWARE, LAUNCHXL-F28027F, BOOSTXL-DRV8301

Dear Manager,

Would you please check the MotorWar v1.01.00.10?

The sprcad8.zip file including "MotorWare1.01.00.09setup.exe"

Sincerely,

Eui-heon

  • 0
    TI__Guru** 119680 points

    Yes, MotorWare was just updated to version _10.

    I will post about the update tomorrow, but you can review the Revision History.

    The primary update for _10 is to support the new combination of LaunchPad LAUNCHXL-F28027F and BoosterPack BOOSTXL-DRV8301

     

     

  • 0 in reply to ChrisClearman
    Intellectual 850 points

    Awesome! Can't wait to get my hands on one! :-)

  • 0 in reply to Sam Hawker
    Intellectual 850 points

    Actually, I have a question about the new boosterpack. The current sense resistance (10mhom) seems quite high compared to the RDSon resistance of the FETs (6.5mohm + 6.5mohm). Is there a reason for this?

  • 0 in reply to Sam Hawker
    TI__Mastermind 21320 points

    Hi Sam,

    The main reason behind the sense resistance choice was to give us greater accuracy for lower current motors (the target of this boosterpack). You are right that this value is quite high compared to the FET RDS(on) but that's just due to the fact that you must actually read the voltage drop across the sense resistor with some resolution, where as in the FET it is generally a don't care. We erred on the safe side here. At 10 mOhm, and assuming 14A peak, that will just about max out your current shunt amplifier range. 3.3V Supply, CSA centered at 1.65V, 0.01 mOhm * 14A * 10 (GAIN) = 1.4V, 1.65+-1.4 gives you about 0 - 3.3V or full range.

    I think if we rev the board eventually this will be one of the things we adjust. Downsize the sense resistance and bump up the gain.