Hi Showair , >> Note that my target is to transfer data from memory location to another >>memory location & it will be an overhead if i copy the data from the >>src to >>the DMA buffer then from the DMA buffer to the Destination. >>isn't there any other way to avoid using that DMA buffer & to co
1. so my question is: is there any difference between the DMA engine & the
DMA controller?
2. i have read the following section in my reference manual: "The MPC8555E
DMA engine is capable of transferring blocks of data from any legal address
range to any
other legal address range. Therefore, it ca
Hi Wael,
1. The DMA engine source and destination registers are based on
physical memory addresses, whatever is the bus connected on, thus you
need to provide it physical addresses.
It looks like you are a bit confused about the terminology "DMA
buffer": a DMA buffer is either the source and/or de