> On Apr 10, 2016, at 9:52 AM, William Hermans <yyrk...@gmail.com> wrote: > > #1 SPI has no slave mode driver in the kernel, so SPI( including mcSPI ) is > out of the question. See my previous answer on supporting McSPI slave mode. > #2 McSPI is limited to 16Mhz in the current kernel config, So one would have > to figure out how to modify that. I take your word for this as I haven’t looked into this. Not sure why the limit, because McASP driver does use DMA. > #3 I've read, and I can not remember where that the McSPI interface is > actually far faster than 48Mhz. I think you are correct, because I believe the AM3358 can support more than one data line, which is what the MMC uses. > #4 3Mbit is max speed for the UART if I recall correctly. > > In terms of raw speed, the USB interface *can* be about 10% faster than > ethernet when used as an ethernet gadget interface. > > On Sun, Apr 10, 2016 at 9:35 AM, evilwulfie <evilwul...@gmail.com > <mailto:evilwul...@gmail.com>> wrote: > That's still only 1/2 of what he wants. > > raw parallel data not faster ? > > > 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. >>>> >>>> > > > -- > 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>.
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