Well the fastest "interface" on the board is probably the GPMC which I've been told can achieve 40MB/s + *BUT* that's not dealing with the external world as it were, which is what the OP needs.
The OP only needs around 8-9MB/s so, the best solution is probably using the USB interface, and one of the gadget drivers. Another option I had not considered before was using g_mass_storage. If one created a tmpfs file, this could potentially be the best options. But I'd have to talk with the OP at length to see what exactly the criteria calls for. On Mon, Apr 11, 2016 at 3:39 PM, jmelson <[email protected]> wrote: > > > On Sunday, April 10, 2016 at 9:04:06 PM UTC-5, Dennis Lee Bieber wrote: >> >> On Sun, 10 Apr 2016 09:23:13 -0700, evilwulfie >> <[email protected]> declaimed the >> following: >> >> > >> >Maybe raw parallel data between the BBBs using GPIO pins. >> > >> >> I hadn't visualized that, but for one-way traffic... If a PRU can >> get >> access to 17 GPIOs, 16 of them adjacent, loading the adjacent 16 of them >> with two bytes of data, then toggling the 17th as a data strobe, might be >> feasible. Say a 50MHz net rate for loading 16-bit data and setting strobe >> (~4 PRU instructions), end rate 800Mbps. Highly dependent on being able >> to >> transfer 16-bit from memory to GPIO without needing to shift >> left/right... >> >> Nope, they do not have 17 fast GPIOs out of one PRU or into another PRU. > They do give you 8, however, which OUGHT to be enough. You could clock 8 > bits across at insane rates. Probably 40 MHz is not unreasonable. Just > give a clock cycle to allow data to settle, sample it and send acknowledge > to the sender. > > Jon > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
