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TMS320F28379D: BOOSTXL-BUCKCONV PCMC didn't control voltage output

user6523785
Prodigy 120 points
Part Number: TMS320F28379D
Other Parts Discussed in Thread: BOOSTXL-BUCKCONV, TMS320F280049C

hello

       i port code controlling BOOSTXL-BUCKCONV to TMS320F28379D from TMS320F280049C.

       i take steps as follow,

              a.turn on 9 VDC supply.

              b.turn on sw1

              c. click resume shortcut to run the program

      it results in a very large peak current.

      and i take another steps as follow, 

              a. click resume shortcut to run the program

              b.turn on 9 VDC supply.

              c.turn on sw1

    it is ok. why ?

              

  • 0
    TI__Guru 62975 points

    user623785,

    We won't be able to answer your question of "why" directly because the solution has been ported to another platform. There are too many opportunities for the introduction of unintended differences.

    As a starting point, I recommend observing the H-Drv, L-Drv, and Vout testpoints on the BOOSTXL-BUCKCONV during the undesired state to understand what physical conditions are present and how they contribute to your sensed readings.

    -Tommy