question about C5409 multiframe mode

Started by Li Hao June 19, 2002
I am trying to get C5409 McBSP port0 and DMA channel 0 and 1 working in
Multiframe mode. There are two isrs, rx and tx. Basically, frame sync comes
every 125us, after McBSP fills and empties rx and tx DMA buffers, isrs are
invoked. I have a dilemma right now, it seems that I have to reset McBSP in
the isrs to get the whole operation going again. It seems to me that if I
don't do the reset, McBSP cannot wake up on the next frame sync. So does
anyone have any similar experience? If you don't reset, what do you need to