A64-OLinuXino Update


Schematic and Component libraries are finished, here  is preliminary component placement on A64-OLinuXino.

It will be not possible to fit it inside LIME box, so far the dimensions are 90×62 mm

On the left hand side you can see HDMI, USB host, Audio In, Out and SD-card on bottom.

On the right hand side you see WiFi+BT antenna, USB-OTG, Ethernet, LiPo battery and PWR jack 5V power supply input.

On top you see GPIO connector 2×20, below it is Console connector with 3 pins, HSIC connector 4 pins, eMMC connector 2×5 pins 0.05″

On bottom you see UEXT, LCD 40 pin flat cable connector and LCD-MIPI 20 pin flat cable on bottom.

Next to PWR jack there are RESET and PWRON buttons.

Now we proceed with PCB layout rooting. All changes are commited on GitHub including new PDF with the schematic last changes, so you can review.

16 Comments (+add yours?)

  1. progmetalbg
    Nov 20, 2015 @ 09:25:49

    awesome 🙂


  2. Brendan
    Nov 20, 2015 @ 09:57:03

    audio IN and conventional (2.54) pin spacing on the GPIOs! Looks great!


  3. Atanas Palavrov
    Nov 20, 2015 @ 12:02:20

    What about https://www.96boards.org compatibility?


    • Thomas
      Nov 20, 2015 @ 12:55:10

      96boards compatibility isn’t worth a look. You’ll find the details in the comments to other A64-OLinuXino updates here in the blog 🙂


    • Grumpy Old Coot
      Dec 02, 2015 @ 22:48:11

      96Boards compatibility? Isn’t that like building a super computer and saddling it with the Commodore Pet interface specs?


  4. SK
    Nov 20, 2015 @ 14:56:18

    Why don’t you put the buttons on the edge – there is space next to the USB-OTG?


  5. Lorenzo
    Nov 20, 2015 @ 17:10:11

    Great work!
    What about a small battery backup for the RTC?


  6. dm8tbr
    Nov 21, 2015 @ 09:29:53

    Any chance to expose the LINE-IN signals somewhere on the board? The Microphone signal is differential mono by the looks of it.


  7. LinuxUser
    Nov 22, 2015 @ 00:47:15

    Hmm, overall it looks pretty interesting. Somehow I got a task which needs decent CPU power and usb at reasonable price. And everything else is not really needed (not even networking).

    As for eMMC… hmm, does Olimex plans to produce eMMC modules, etc? Or what is the plan?


  8. bvernoux
    Nov 22, 2015 @ 19:05:23

    Very nice work and even better as now you are using Kicad


  9. Grumpy Old Coot
    Nov 24, 2015 @ 23:13:26

    Two minor hopes: Integrated LiPo charging from USB or Power jack while operating, and more memory than sane. 🙂


  10. bflmpsvz
    Dec 03, 2015 @ 08:34:34


    Why cannot be Ethernet and LCD used simultaneusly? This would make totaly unusable for my needs :-(((


  11. swe34
    Dec 05, 2015 @ 14:13:03

    Maybe you should start thinking in terms of “internal” and “external” connectors when you design your OlinuXino boards.

    I am right now looking at some of your A20 boards to use as a motherboard in a portable experimentation system.
    On the A20-OlinuXino-MICRO the SATA connector is on the same edge as the HDMI, USB and Ethernet.
    This makes it impossible to have an internal SATA drive and have Ethernet, USB and HDMI exposed through the casing.
    The LIME boards are a little better with one clean edge with PWR, USB and Ethernet.
    But SATA sits next to the HDMI on the other edge.

    If you start thinking of how the boards are being used, and I guess a lot of people want to integrate them into an enclosure, and use them not only as a development board on the lab bench.
    The grouping of internal and external connectors make a lot of sense.

    Connectors that are simple to make an internal rerouting cable for, like audio and power, can be on the internal connector edge even if they are external connectors.

    I think the OlinuXino product range would benefit from this in the future.


  12. ALX
    Jan 05, 2016 @ 10:36:05

    What do you think about of a two PIN-header to connect a 3 volt coin cell backup battery for the RTC. RTC has power even if no LiPo is connected. All Allwinner CPUs have a RTC backup power pin. That’s missing on all Olinuxino boards.


  13. paul
    Jan 05, 2016 @ 23:31:27

    Yes I very much want RTC on any of these boards, even the MCU boards.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: