#1 SPI has no slave mode driver in the kernel, so SPI( including mcSPI ) is out of the question. #2 McSPI is limited to 16Mhz in the current kernel config, So one would have to figure out how to modify that. #3 I've read, and I can not remember where that the McSPI interface is actually far faster than 48Mhz. #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 <[email protected]> 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 < <[email protected]> > [email protected]> 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, [email protected] 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: > > > 1. Read data in from one BBB Ethernet port, send the data > (unidirectionally) from one BBB to the other. > 2. Examine the data on the receiving BBB, looking for key words and > deleting them. > 3. 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 > --- > 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.
