I'm not 100% sure, as I don't write from the fabric: I load using the PPC interface and then playback from the fabric. I may have found an addressing problem in my design; I'm rebuilding now to check it and will report back.
On Wed, Feb 26, 2014 at 10:17 AM, Jason Manley <[email protected]> wrote: > Corr does this in 1MB chunks for this reason. > > I suspect a problem in the controller. Glenn, can you access over 256MB > from the fabric? > > Jason > > > > On 26 Feb 2014, at 17:13, Marc Welz <[email protected]> wrote: > > > On Tue, Feb 25, 2014 at 7:43 AM, G Jones <[email protected]> > wrote: > >> Hi Marc, > >> Thanks for the reply. I would have expected that selecting the 64 MB > chunk > >> with the dram_controller register as described in the DRAM block > >> documentation on the wiki would get around any such PPC address space > >> limitation. Is that not the case? > > > > I think that should indeed be the case - I had forgotten that the > base+offset > > scheme had already been implemented quite some time ago. > > > > A note though: On the other side of the FPGA, there isn't that much > > memory to go around either - so where possibly try and send it out (or > > process it) > > in smaller pieces > > > > regards > > > > marc > > > >
