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6455,GPIO

hu shushu
Prodigy 170 points

hello,

I  use  the  GPIO7  for EDMA3.but  the  EDMA3  can't  work  although I  have  put  interrupt   in  the  GPIO7.

BUT  when  i   run   the  GPIO   example  of  the  CSL_6455  to  get  the  interrupt  of GPIO7,  it  can  detect  the   interrupt.  After  that  i   run  the  EDMA3 ,it  can  transfer  then.

I  don't   know  why?it  is  wether  that   i   need  to  open  the  GPIO7   before   i  use   it   for  the EDMA3?

Thank  you!I  need  your  help .

  • 0
    TI__Guru* 84110 points

    Hu Shushu,

    The interrupt is not required for EDMA to operate but the GPIO configuration is required. If you run the same GPIO initialization but do not link it to an interrupt, it would seem from your comments above that the GPIO would work - even without the interrupt occurring.

    Regards,
    RandyP

     

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