On Wed, 2011-08-17 at 21:47 +0400, Alexander Chemeris wrote: > On Wed, Aug 17, 2011 at 21:15, Nick Foster <n...@ettus.com> wrote: > > On Wed, 2011-08-17 at 18:00 +0400, Alexander Chemeris wrote: > >> Hi Nick, > >> > >> On Sat, Aug 13, 2011 at 02:41, Nick Foster <n...@ettus.com> wrote: > >> > On Fri, 2011-08-12 at 23:26 +0100, Nemanja Trecakov wrote: > >> >> 1) Did anybody use this external SRAM > >> >> on USRP2 before? According to the FAQ page the usual FPGA build is > >> >> not using it. > >> >> (http://gnuradio.org/redmine/projects/gnuradio/wiki/USRP2GenFAQ) > >> >> However, my experience with these pages is that many of them are > >> >> outdated. I also found the folder called extramfifo in > >> >> uhd/fpga/usrp2 folder for which I believe has something to do with > >> >> external RAM.True? > >> > > >> > The external SRAM is currently used for buffering TX packets. > >> > >> Is it true for USRP N and latest git too? > >> > > > > yes > > > > By Tx do you mean Ethernet->RF aka RF Tx, or RF->Ethernet aka Eth Tx?
RF TX. It's there as a buffer so you can use timestamped TX packets to say "send this data at exactly time X". --n > > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio