1 2 3 Previous Next 30 Replies Latest reply: Dec 17, 2012 11:13 PM by bheemarao Go to original post RSS
  • 15. Re: Wanted, help finding embedded linux board
    selsinork Level 15

    Just stumbled across DEV KIT,SITARA, AM3359 ARM CORTEX-A8DEV KIT,SITARA, AM3359 ARM CORTEX-A8 which looks surprisingly good with two network ports, decent PMIC etc.. Now the question is why does $99 work out to £100 +VAT ?

  • 16. Re: Wanted, help finding embedded linux board
    Drew Fustini PremierFarnell

    There's an Indiegogo now for the CubieBoard: http://www.indiegogo.com/cubieboard

     

    Wish I would have seen it earlier - the early bird special was quite good.    

  • 17. Re: Wanted, help finding embedded linux board
    FreescaleTools_and_Software Level 8

    Hello

    I agree with John, may be the i.MX6 ARM Cortex-A9 processor family has been announced a little bit to earlier ...

    ... BUT it is official now, i.MX6 Solo, Solo Lite, Duo, Duo Lite and Quad are in production (at least in industrial qualification) since Electronica.

    For proof, you can request samples and download the datasheets on Freescale website HERE

     

    Concerning the board, Element14 is taking pre-order for the i.MX6 Sabre-Lite which is quite powerfull considering its features :

    - i.MX6 in Quad Core version @1GHz each with a video accelerator (encoding/decoding up to Full-HD 1080p), a 2D and a 3D accelerator with a composition Engine from Vivante

    - 1GB of 64-bit wide DDR3 @532MHz

    - 2x SD-Card Slots (SD and µSD)

    - 3x USB ports (2x Host and 1x OTG)

    - 1x 10/100/1Gb IEEE1588 Ethernet port

    - SATA and PCI-Express ports

    - 3x Display outputs (HDMI, LVDS and RGB)

    - Analog (headphone, microphone) and Digital Audio (HDMI)

    - Also include :

         4GB SD-card preloaded with Timesys LinuxLink Embedded Linux Image (Kernel v3.0)
    More information HERE

  • 18. Re: Wanted, help finding embedded linux board
    selsinork Level 15

    I'm actually quite tempted to get one of those for a look, however I'd take issue with some of the specs. According to the iMX6 eratta document, there's some internal bandwidth limitation that means you can't get more than ~400Mb/s total throughput on the ethernet, so that's not quite 1G.

    I also saw mention that if you want to use USB then the clock requirement means you can't run at 1Ghz - 994MHz or something.

     

    Ok, so it supposedly has PCIe which might help, and the manual says this is available on P23, but P23 certainly isn't obvious on any of the photos.  I'm interested here as I'd like to find out what awful type of connector it's on, back in the original post I said things with horrible connectors would be unlikely to be considered..

     

    GPIO's, such as they are, seem to be splattered across multiple connectors and mixed in with other features, so potentially unuseable anyway.

     

    Then there's 'Kernel v3.0'. Sorry, that just doesn't cut it. Needs to be up at somthhing like 3.4, there's been way too much churn in the linux arm tree with things like devicetree, pinctrl etc that the 3.0 drivers are going to be much harder to forward port to a useful kernel.

    Also, in this respect, I'd like to see some evidence that there's some effort being made to get all this stuff into the mainstream linux kernel. Being stuck with 3.0 in five years time wouldn't be good - same goes for any other arm board though.

     

    Finally, back in the original post I suggested a budget of $50, this board will run to £153.63, considerably more than $50

     

    I do like the iMX6 and I think it has lots of potential, but something like the Wandboard (wandboard.org) seems to be much more in line with my original question.  Sabre-Lite seems very much aimed at some sort of android tablet

     

    That said, I see there's some in stock and I'm able to actually order a Sabre-Lite today, so maybe I will

  • 19. Re: Wanted, help finding embedded linux board
    selsinork Level 15

    I should also say... Quite disappointing that the element14 link to the Sable-Lite ares shows  discussions - 0 , documents - 0, and there's so obvious link to a downloadable sd-card image or anything.

     

    I realise these are still very new, hopefully the group might take off..  I suspect it'll be slow though. 150 quid vs 30 quid raspberry pi is tough competition. Regardless of anything else I do think the RPF made a good choice in sticking to a very low price point. Yes the Sabre-lite is better in so many ways, but also has lots of 'features' nobody will use and 5x the cost is much harder to justify as a throwaway whim.

  • 20. Re: Wanted, help finding embedded linux board
    John Beetem Level 15

    selsinork wrote:

     

    Ok, so it supposedly has PCIe which might help, and the manual says this is available on P23, but P23 certainly isn't obvious on any of the photos.  I'm interested here as I'd like to find out what awful type of connector it's on, back in the original post I said things with horrible connectors would be unlikely to be considered..

    PCIe is the white 7-pin connector near the HDMI jack J4.  It's labeled "PCIe" on the silkscreen, with "J23" in tiny letters near the Micro SDcard jack J20.  You can zoom into the photo on page 6 of the MCIMX6Q-SL user manual.

  • 21. Re: Wanted, help finding embedded linux board
    selsinork Level 15

    John, I admire your dedication to hunting down stuff like this. I'd wrongly assumed the photos would be the usual sort that are so low res that there'd be no point trying to zoom in.

     

    But with that answer, the questions has to be whether element14 will be supplying breakout boards for the Sabre so that we can get useful access to any of the features on horrible connectors.  A quick search suggests there's nothing available currently.

  • 22. Re: Wanted, help finding embedded linux board
    John Beetem Level 15

    selsinork wrote:

     

    John, I admire your dedication to hunting down stuff like this. I'd wrongly assumed the photos would be the usual sort that are so low res that there'd be no point trying to zoom in.

     

    But with that answer, the questions has to be whether element14 will be supplying breakout boards for the Sabre so that we can get useful access to any of the features on horrible connectors.  A quick search suggests there's nothing available currently.

    Thanks, but I have a personal interest in PCIe so I was curious.  I have an FPGA design for a client that's currently 32-bit PCI but at some point we'll probably have to migrate to PCIe because it's getting harder to find SoCs that have 32-bit PCI.  So I'll need something for prototyping the design.  On the FPGA side, Xilinx Spartan-6 with the "T" option is promising except that the cheapest part (XC6SLX25T) is US$50 and has way more gates than we need.

     

    There is a standard for PCIe over a cable, but products are hideously expensive.  I think it's possible to use a SATA cable, which are very cheap.  I would hope Freescale has a high-speed cable in mind for J23.

  • 23. Re: Wanted, help finding embedded linux board
    bheemarao PremierFarnell

    Thanks for showing interest on i.MX6 SABRE-LITE board, please find below useful links for documnetation on this board:

     

    User Manual for i.MX 6Q SABRE Lite click here

     

    Schematics for Development platform on i.MX 6Quad SABRE Lite click here

     

    Bill of Materials for the development kit for i.MX 6Quad - Built to Freescale SABRE Lite design click here

  • 24. Re: Wanted, help finding embedded linux board
    FreescaleTools_and_Software Level 8

    Hello Selsinork

    Don't hesitate to start a new discussion in the section www.element14.com/iMX6 if you want to ask some questions or just share some comments concerning this board useful for users of the community.

    As mentioned by Bheemarao, there is a full page with all the documentation and software for i.MX6 Sabre-Lite accessible from the Knode dedicated section www.element14.com/iMX6 by clicking on "Learn more".
    Don't hesitate to open the document "Quick Start Guide for element14 development platform SABRE Lite for Freescale i.MX 6Quad" as it includes detailed pictures from the connectors of each port.
    Board was officially launched during Electronica (November 13th) so you should see soon additional content in the document section.

  • 25. Re: Wanted, help finding embedded linux board
    selsinork Level 15

    bheemarao wrote:

     

    Thanks for showing interest on i.MX6 SABRE-LITE board, please find below useful links for ocumnetation on this board:

    Thanks, have had a look at those already. Somehow they seem to miss a large part of the useful/required pieces.

     

    For example, the user manual states

    "Insert the supplied MicroSD card into the board’s MicroSD card socket J20.

    Note: MicroSD Card is included if ready at the date your kit was shipped.

    For the latest version of the BSP, please visit www.element14.com/iMX6"

     

    However if you follow the link and then take the Software/BSP tab on that page it takes you to a document, not a downloadable BSP. No, there's no link to anything in the document either.

     

    So, maybe you can answer the obvious question. There's two showing in UK stock today, if I was to order one of them, do I get the MicroSD card with the BSP or not ?   Since I don't appear to be able to download the BSP from anywhere I think £153.68 for what would essentially be a paperweight is a little excessive.

  • 26. Re: Wanted, help finding embedded linux board
    selsinork Level 15

    John Beetem wrote:

    There is a standard for PCIe over a cable, but products are hideously expensive.  I think it's possible to use a SATA cable, which are very cheap.  I would hope Freescale has a high-speed cable in mind for J23.

    You'd hope so, but from the bom the connector appears to be just a standard board to single wire with a crimp terminal sort of thing. Given the high speeds expected for PCIe I'd imagine you'd need to keep that really short to avoid all sorts of problems. I've posted a question over in the Sabre-lite group to see if they'll be supplying anything. I'd hate to have to make them up by hand.

     

    The sata cable is an interesting suggestion, but even that leaves you needing some sort of an adapter from the current connector. Having had the occasion to hack the end off a sata cable and try to solder something else onto it, it's not something I'd recommend if there's any other choice.

     

    From what I've seen, the cabled external PCIe stuff is very similar to Infiniband or external SAS although with an incompatible connector to prevent accidental incorrect connections.

  • 27. Re: Wanted, help finding embedded linux board
    bheemarao PremierFarnell

    To download the Software/BSP as mentioned in the user manual you need to follow the lnik www.element14.com/iMX6 which shows the main page for i.mx sabre lite board.

     

    in the quick links tab as shown below there are four options to select "User manual" "Schematics" "BOM" and "Software/BSP" which are hyperlinked and leads to corresponding sections

     

     

    Quick Links:User manual

     

    and by clicking to "Software/BSP" header it leads to http://www.element14.com/community/docs/DOC-51015#anchor3 page where "Overview of Embedded Linux Build System for element14 SABRE Lite" is present.

     

    Here in the begining one can see below options present, 

     

    DownloadLicensing OptionsDevelopment ToolVideoTechnical Documents

     

    To download you need to click on "Download" option which leads to web page http://www.timesys.com/register/element14-sabrelite and register yourself for downloading the BSP.

  • 28. Re: Wanted, help finding embedded linux board
    selsinork Level 15

    Has discussion over in the Sabre Lite area been closed ?  Or have I just been blocked from posting in it ?

     

    Anyway, I was going to add that people looking for bsp files for the Sabre-Lite can get them from the following places

     

    http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/

    https://github.com/Freescale

     

    and http://www.eewiki.net/display/linuxonarm/i.MX6x+SABRE+Lite is a very good starting point for how to build your own bootloader/filesystem/distro. It also includes good info on how to boot from the usb-otg port to recover the system.

     

    These are exactly the sort of places I'd expect element14 to have links to.  i.e. provide developer level details for a development board

  • 29. Re: Wanted, help finding embedded linux board
    selsinork Level 15

    bheemarao wrote:


    To download you need to click on "Download" option which leads to web page http://www.timesys.com/register/element14-sabrelite and register yourself for downloading the BSP.

    From that page:

    "Want to build on your host and have access to unmetered support?

    For advanced platform and application customization, upgrade to LinuxLink  

    PRO Edition"

     

    The missing piece is that LinuxLink FREE allows absolutely no kernel customisation - hence basically useless - and makes 'build on your own host' a basic requirement.

     

    LinuxLink PRO: http://www.timesys.com/embedded-linux/pricing

     



    PRO

    Subscription per processor family / per person / per year

    $5495 / seat
    (USD)

     

    I hope you're on comission from timesys