03-25-2011 01:44 AM
I use a System with ML507 with the PLBv46 PCIe bridge connected to BRAM and a xps_central_dma.
My Windows-Driver (WDF) works well. But the Performance ist nor realy good:
PIO-Write 25 MB/s
04-16-2012 11:27 AM
Did you ever find the solution to the performance problem ?
I'm having the same problem with my project. DMA transfers from DDR2 (Xilinx board) to the host PC RAM achieve throughputs above 100 MB/s, but data transfers from Host RAM to DDR2 only reach a maximum of 24 MB/s.
I even get a transfer rate of 180 MB/s from blockram to host ram, but from host ram to blockram, again, 24 MB/s.
Thanks in advance