Hey Andrew, Thanks for the reply - we are looking forward to the ROACH 2 in the future.
I haven't been able to open all of the tutorials, but I have seen a few. So I apologize if I may have missed something obvious, and I would even really appreciate an answer that says "hey you, go read about this." I see that data can be saved using a snap block, and I could save a concatenated set of samples as a single 64 bit integer, and I can save a maximum of 2^16 of these. Is there a better way of using the roach memory to guarantee that I can read and save all of the data continuously? I'm wondering if there is perhaps a way of constantly reading from a snap register fast enough to insure that we have captured the data continuously and saved it to our external computer. --Laura On Mon, Mar 12, 2012 at 11:59 PM, Andrew Martens <[email protected]> wrote: > Hi Laura > > The ROACH does not have a direct 1Ge connection to the FPGA, any data > must exit via the PPC if it is not going through the 10Ge links. > > The ROACH2 however, has a 1Ge link directly to the FPGA. The yellow > block has been completed and has been designed to act the same as the > 10Ge links (basically the same interface, can be accessed from the PPC > if needed, ARP table managed from PPC etc) except that the data rate is > lower (8 bit data paths instead of 64 bit). > > We should be finalising these yellow blocks and making an announcement > soon so that people who are interested can start designing for ROACH2. > > Regards > Andrew > > On Mon, 2012-03-12 at 17:22 -0700, Laura Vertatschitsch wrote: > > Hey Casperites, > > > > I see a lot of data about reliable streaming using the 10GbE ports and > > a lovely simulink block to boot. Is there an analogous method for > > streaming data out over the 1Gbps ethernet? > > > > Not sure if someone has written some python control scripts to > > accomplish this - I may have just missed it on the wiki. We would > > love to stream 10MHz time-domain data off our board. > > > > --Laura > > >
