3 ms·

I am going off the bottom of the page (http://cubox-i.com http://cubox-i.com), where it says it is limited to 470 Mb/sec due to internal busses. 470 Mb/sec sou

I am going off the bottom of the page (http://cubox-i.com http://cubox-i.com), where it says it is limited to 470 Mb/sec due to internal busses. 470 Mb/sec sounds too similar to USB 2 to not be USB 2. -- Actually did the right thing and looked at the datasheets involved: http://cache.freescale.com/files/32bit/doc/data_sheet/IMX6DQCEC.pdf?fpsp=1&WT_TYPE=Data%20Sheets&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation http://cache.freescale.com/files/32bit/doc/data_sheet/IMX6DQ... and http://cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.pdf?fpsp=1&WT_TYPE=Errata&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation http://cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.p... This seems to be an internal limitation of the bus. It is not run over USB! This means it will most likely reach that 400 Mbps claimed in the errata: Quote: ERR004512 ENET: 1 Gb Ethernet MAC (ENET) system limitation Description: The theoretical maximum performance of 1 Gbps ENET is limited to 470 Mbps (total for Tx and Rx). The actual measured performance in optimized environment is up to 400 Mbps. Projected Impact: Minor. Limitation of ENET throughput to around 400 Mbps. ENET remains fully compatible to 1Gb standard in terms of protocol and physical signaling.

justincormack 13y ago
I dont think it is actually USB2, just a similar speed bus. But it is a bit annoying - some tests here http://boundarydevices.com/i-mx6-ethernet/ http://boundarydevices.com/i-mx6-ethernet/
digikata 13y ago
If you want to really move network packets in embedded computing environments, you need a processor oriented a little differently, the iMX6 is an embedded multimedia processor, and for my 2cents, it's architected to do that job pretty nicely. There's trade between power savings and a faster peripheral bus. The Gigabit ethernet running at those specs I'm guessing pushes streaming video nicely (I'm guessing sized for about enough bandwidth for a compressed 1080p 60fps stream with a little bit of margin).
- X-Istence 13y ago
  It's still a limiting factor, especially for someone trying to build a media server out of it for example like some people were already considering home NAS's...
DHowett 13y ago
That's actually rather unfortunate—the original Cubox (/pro) based on the Armada 510/Dove has a GigE PHY which is completely capable of ~1000 megabits.
- deleted 13y ago
  [deleted]

justincormack 13y ago

I dont think it is actually USB2, just a similar speed bus. But it is a bit annoying - some tests here http://boundarydevices.com/i-mx6-ethernet/ http://boundarydevices.com/i-mx6-ethernet/

digikata 13y ago

If you want to really move network packets in embedded computing environments, you need a processor oriented a little differently, the iMX6 is an embedded multimedia processor, and for my 2cents, it's architected to do that job pretty nicely. There's trade between power savings and a faster peripheral bus. The Gigabit ethernet running at those specs I'm guessing pushes streaming video nicely (I'm guessing sized for about enough bandwidth for a compressed 1080p 60fps stream with a little bit of margin).

X-Istence 13y ago
It's still a limiting factor, especially for someone trying to build a media server out of it for example like some people were already considering home NAS's...

DHowett 13y ago

That's actually rather unfortunate—the original Cubox (/pro) based on the Armada 510/Dove has a GigE PHY which is completely capable of ~1000 megabits.

deleted 13y ago
[deleted]