I am trying to get received McBsp data to cycle into the DMA without making an excursion through the McBsp Interrupt routine, which is handled by the BIOS dispatcher and takes some processing.
But, if I disable the McBsp PIEIER (PIEIER7.5 = 0) the DMA won't fire.
So, I have the MFFINT for rcv set. I have the dma PERINTSEL set to trigger on McBsp B Receives. The DMA works, BUT for every receive on the McBsp the McBsp interrupt routine is visited.
Is there any way to configure things so that the McBsp continues to receive and to trigger the DMA, but does not light up the McBsp interrupt?