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Imx6Q usochronous transfer

Question asked by Binaek Sarkar on Apr 9, 2015
Latest reply on Apr 9, 2015 by igorpadykov


I am using imx6q usb as device controller. I configured end point 2 as isochronous out by writing appropriate endpoint control  register. I am playing 44.1khz, 24 bit, stereo,wave fil;e from Windows media player.( bInterval set to 1 ms). In the device side I have performed the following steps.

  • Prepare dtd with a 272 bytes of buffer
  • Link dtd with isochronous out dqh.
  • prime isochronous out end point.

But we do not see iso out endpoint completion interrupt. Please let me know if I am missing something.

Thank you in advance.