Hi, circular DMA doesn't work on the "SAI EDMA HALF INTERRUPT" example for 1010 EVAL unless the example "SAI EDMA TRANSFER" was previously loaded and running.
In other words, if I hard reset the board and try to run the SAI EDMA HALF INTERRUPT the circular DMA fails. Then if I program the SAI EDMA TRANSFER, run it, and then program the SAI EDMA HALF INTERRUPT the circular DMA works.
I have got as far as checking out the bits in the registers prior to the first DMA interrupt (after config). The register printout on the left is what I get if I run the SAI EDMA TRANSFER example followed by the SAI EDMA HALF INTERUPT example, wheras the one on the right is what I get if I run the SAI EDMA HALF INTERRUPT example direct after a hard reset on the board.
Will carry on investigating in more detail tomorrow, I am new to this board so I have a bit of reading to do. If anything immediately comes to mind for anyone please let me know so that I may get the half transfer working a bit easier.
