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Serial or Analog Input?

Bradley Odhner
Prodigy 120 points

Other Parts Discussed in Thread: BOOSTXL-DRV8301, MOTORWARE

Is it possible for the LAUNCHXL and BOOSTXL-DRV8301 to have a serial or analog input that doesn't go through USB?  

I saw that the HAL Tutorial in motorware gives instructions for a potentiometer read on the f2806x board so I figured it might be possible to do that on the LAUNCHXL but I wanted some confirmation before I started messing with the GPIOs and attaching things tot he board.  The serial input I'm less sure would work but I know the board can at least work in serial so I figured it might be a possibility.  

What I'm looking to do with this by the way is have an outside device control some of the gMotorVars functions.  

  • 0
    Guru 192875 points

    Hi Bradley,

    Is it possible for the LAUNCHXL and BOOSTXL-DRV8301 to have a serial or analog input that doesn't go through USB? 

    As you might know, F28027 has only one SCI port ie SCI-A. If you also go through the launchpad schematic, J1 pin numbers 3 & 4 are the SCI pins. You can pull them out... just check whether you require a level shifter before communicating with the external hardware.

    Regards,

    Gautam

     

  • 0 in reply to Gautam Iyer
    Prodigy 120 points

    Thank you Gautam,

    Reusing pins 3 and 4 on J1 would then prevent the FAULT and OCT indicators from working correct?  I see that there are several other pins labled as SCI on the launchpad schematic, pins 2, 3, and 9 on J2, and pin 7 on J1, using those I assume would void different functions of the board, or are they unusable?   

    And do you know anything about analog input on the board? (Or perhaps summoning ChrisClearman is the best way to find out about that?)

  • 0 in reply to Bradley Odhner
    Guru 192875 points

    Bradley Odhner said:
     I see that there are several other pins labled as SCI on the launchpad schematic, pins 2, 3, and 9 on J2, and pin 7 on J1, using those I assume would void different functions of the board, or are they unusable?   

    Exactly, you need to check which points you really want to pull-out as it would void the other functionality for sure.

    Bradley Odhner said:
    And do you know anything about analog input on the board? (Or perhaps summoning ChrisClearman is the best way to find out about that?)

    What in analog? Do chip in the question, if I can I'll surely help else Mr. Chris is always here to help :)

    Regards,

    Gautam