MCBSP EDMA problem on DSP 6482

Started by mandy February 10, 2008
Hi all,  
DSP 6482 is used here. I am working on a s/w where an edma channel(12) is
transfering data from a buffer to a mcbsp port which forwards it to PCM
Then using PCM MUX loopback, it is received at another mcbsp port from
where it read by another edma channel(13) and transferred onto a buffer. 
Now when i compare data at sending and receiving buffers, the data
matches. But when i use DLB(digital loop back), data matches. Any ideas
what could be the reason??? Clock is provided by PCM MUX. 
Plz reply