David Kuehling wrote: > Without going through your sources: Can this do (circularly linked) DMA > transfer lists for doing a full frame without CPU intervention?
The DMA only provides the pixel data. The CPU still needs to bit-bang hsync and vsync. Exclusively DMA-based operation would only be possible if at least three colors would be assigned to sync generation and if there was some logic circuit to derive the sync signals from this. Another issue is that the number of blocks in an MMC transfer is limited by the controller, so the CPU would have to intervene and set up a new transfer about once a second. > (Still hoping for video playback :) There's still hope that interrupts may be fast enough :-) - Werner _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
