Hi Hongyue!
Maybe I do not understand something about your problem. But if you will paste "DMABuf1" (or "DMABuf2") at "Watch expressions" then you can watch only the element with index [0], i.e. first element of array. Also you can see other array's elements if you will paste "DMABuf1[i]" (or "DMABuf2[i]"), where "i" is index at the range 0...1023.
Regards,
Igor
