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DRV8353RS-EVM: Setup upload

Pavel Matula
Prodigy 30 points
Part Number: DRV8353RS-EVM
Other Parts Discussed in Thread: DRV8353R, DRV8353RH-EVM

Hi, we've a concept of own BLDC motor in our factory where we want to use the DRV8353RS driver. We bought some DRV8353RS-EVM boards for testing and it fits perfect to our needs, so we want to use this chip in the driver we develop in August.

But, for the long-time testing of the motors in our lab here we've to use 8 pieces of these EVM boards. Not a problem to buy them, but everyone needs own PC...

Would be it possible to find a way how to fix the uploaded settings into the board and simply start the motor after power-on? Could anybody tell me how to achieve that? We plan to use your chip with different processor, but the motors should be produced in about 5,000 pieces per year. We need to test 8 motors at 2,000 rpm with PWM regulation without Hall. Your EVM makes that perfect.

Have you please any idea/solution how to manage that please?

Thank you very much,

Best Regards,

AVS Roemer, Germany.

  • 0
    TI__Guru 65290 points

    Pavel,

    Glad to hear you like the DRV8353R. It sounds like you want to skip the motor identification steps at board power up?

    There is a way to do this!

    You will need to follow the guide here: http://www.ti.com/lit/ug/slvubh8b/slvubh8b.pdf

    Basically what you will be doing is installing Code Composer Studio and inputting your motor settings into the User.h file:

    It is best if these parameters are measured by the GUI during the ID process first and then input here.

    Once you follow the steps from the guide to compile your appProgram.out file and place it in the DRV835x GUI directory, you can turn on the "user.h Params" switch and the GUI will skip the ID process, using your info from the User.h file instead. 

    Please let me know if you need help.

    Are you working with a TI FAE or sales person?

    Regards,

    -Adam

  • 0 in reply to Adam Sidelsky
    Prodigy 30 points

    Hi Adam,

    thank you very much, that's the first part of my problem, so I know now how to skip the identification process at the begin. Great.

    And, is it possible to use that development board without the PC software after a setup completely? I need to run 8 motors in one group, each with stand-alone driver and, if I understood the software well, I can't simply use an USB hub and run 8 software on one PC. Therefore I'm searching a way how to run the board without the PC. No way to place 8 PC's to the motors, you know.

    Or, am I wrong with the board selection and for 8 motors would be it better with the DRV8353RH-EVM?

    I'm not working with TI FAE or sales person. I'm hw developer in our company and one of the loads here is driver for our BLDC motor. I use TI parts 25 years, but have no experience with 8353 chip. I found it as better solution than competitive chips on the market and now must manage the implementation...

    Thanks

    Regards,

    Pavel

  • 0 in reply to Pavel Matula
    TI__Guru 65290 points
    Pavel,

    Thanks for the information. For driving 8 motors I would recommend this device but you should probably spin your own board. I don't know of a way to control and manage 8 EVMs at once.

    Regards,

    -Adam
  • 0 in reply to Adam Sidelsky
    Prodigy 30 points

    Hi Adam,

    thanks for reply. Okay... I wanted to save the time before we develop own driver with that chip, because of my colleagues from the lab here need to do long time test with 8 motors. So they must wait until our own driver will exist. I thought the EVM could run on fixed setting in stand-alone mode without the PC.

    Anyway, thank you for your help.

    Regards,

    Pavel