> On Apr 10, 2016, at 9:46 AM, evilwulfie <evilwul...@gmail.com> wrote: > > Well my guru friend on the BBB software side said that the best way would be > USB to USB on 2 beagle bones Given that USB2 is 480Mbps, this might be the fastest interface, but given the overhead of the USB protocol, you might get 100Mbps if you are lucky. > > seems its as fast as the ethernet connection > > Running Ethernet over USB > > He also told me there is no slave driver for spi in the Linux kernel so thats > a no go. Yep, you are correct, but if you do not use the SPI framework, it is pretty simple to create a slave SPI driver using DMA. A few days ago, I had a discussion with another developer who said he managed to modify the McSPI driver to support SPI slave mode using callbacks.
Regards, John > > > On 4/10/2016 9:30 AM, John Syne wrote: >> Oh, and SPI can run up to 48Mbps. >> >> Regards, >> John >> >> >> >> >>> On Apr 10, 2016, at 9:23 AM, evilwulfie < >>> <mailto:evilwul...@gmail.com>evilwul...@gmail.com >>> <mailto:evilwul...@gmail.com>> wrote: >>> >>> high speed I2C : 3,2 Mbit/s >>> >>> SPI UP TO 10 Mbps >>> >>> UART SERIAL 921600 <--- I think the highest serial rate >>> >>> So it looks like SPI is your highest data rate other than ethernet. >>> >>> I Am not so sure that the BBB can keep with both interfaces saturated. >>> >>> But only further testing will see if that is the case >>> >>> I cant see any way to get 8MB on any of the other interfaces. >>> >>> Maybe raw parallel data between the BBBs using GPIO pins. >>> >>> >>> >>> On 4/9/2016 7:23 PM, john.w...@triangleexperience.com >>> <mailto:john.w...@triangleexperience.com> wrote: >>>> >>>> If I had two BBB devices sitting right next to each other, what would be >>>> the fastest way to send data from one to the other--excluding Ethernet? >>>> >>>> Specifically, I'd like to be able to: >>>> >>>> Read data in from one BBB Ethernet port, send the data (unidirectionally) >>>> from one BBB to the other. >>>> Examine the data on the receiving BBB, looking for key words and deleting >>>> them. >>>> And then send the modified data back out via the Ethernet port on the >>>> second/receiving BBB. >>>> To keep up with the 100Mb/s Ethernet pipe, I'd like to see data rates in >>>> the 8MByte/s range. >>>> >>>> I'd love to hear even the most bizarre suggestions... >>>> >>>> >>>> VR/John >>>> -- >>>> For more options, visit http://beagleboard.org/discuss >>>> <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 >>>> <mailto:beagleboard+unsubscr...@googlegroups.com>beagleboard+unsubscr...@googlegroups.com >>>> <mailto:beagleboard+unsubscr...@googlegroups.com>. >>>> For more options, visit https://groups.google.com/d/optout >>>> <https://groups.google.com/d/optout>. >>> >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> <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 beagleboard+unsubscr...@googlegroups.com >>> <mailto:beagleboard+unsubscr...@googlegroups.com>. >>> For more options, visit https://groups.google.com/d/optout >>> <https://groups.google.com/d/optout>. >> >> -- >> For more options, visit http://beagleboard.org/discuss >> <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 beagleboard+unsubscr...@googlegroups.com >> <mailto:beagleboard+unsubscr...@googlegroups.com>. >> For more options, visit https://groups.google.com/d/optout >> <https://groups.google.com/d/optout>. > > > -- > For more options, visit http://beagleboard.org/discuss > <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 beagleboard+unsubscr...@googlegroups.com > <mailto:beagleboard+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout > <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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
