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eoma68-a20 v2.2 PCBs arrived

ok i haven't tested them yet - wits tech kindly ran a preliminary
check - they arrived over the weekend.  they have at least been booted
up from USB-OTG and an OS installed, so it is known that RAM, CPU,
PMIC, NAND, HDMI and USB-OTG all operate correctly.  i will be able to
fully test the rest of the functionality once the micro-desktop PCBs
are assembled, which should be another month or so.

l.

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Operating Systems, CPU Cards, EOMA68

this is triggered mainly by the discussion last month from manuel, i
had a bit of time to think and i came up with an idea.

if you recall, manuel asked "would it be ok to buy a specific model of
CPU card, install an OS that only works with the Games Console?" and
the answer was "yes... but you could not call it EOMA68 compliant"

so anyway i thought about this a bit and i figured that it makes a lot
of sense to have the OS (which really has nothing to do with the CPU
Card per se) basically adjust so that it works with whatever it
detects...

... in other words, from an end-user perspective, you would buy a
Gaming *Card*, or an Work *Card*, or an Android *Card*, or a
Photo/Camera *Card* that would have an OS preinstalled which adapts to
the base units it's plugged into.

i'd be interested to hear people's thoughts on this.

l.

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Miguel Garcia | 5 Sep 12:56 2014
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Block Diagram EOMA-68 Handheld Games Console

I appreciate you analyze the block diagram.

If you know any better component or an error or a missing connection,
please tell me.

Thanks.

----------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------
Block Diagram EOMA-68 Handheld Games Console v.1.0
----------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------

A basic sketch of the block diagram:
http://oi57.tinypic.com/16aeffb.jpg

----------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------

-----------------
Slot PCMCIA:
-----------------

Part Number: Amphenol G659EU1X2472X
Datasheet: https://dl.dropboxusercontent.com/u/19251472/11/G659EU1X2472X.PDF
Table of EOMA-68 pinouts:
http://elinux.org/Embedded_Open_Modular_Architecture/EOMA-68#Table_of_EOMA-68_pinouts
(Continue reading)

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Fwd: Allwinner A33 Quad Core 2GB board in development

this has gone out to debian-arm and fedora arm lists, if anyone else
would like an A33 CPU Card let me know.

l.

---------- Forwarded message ----------
From: Luke Kenneth Casson Leighton <lkcl <at> lkcl.net>
Date: Fri, Sep 5, 2014 at 10:33 AM
Subject: Fwd: Allwinner A33 Quad Core 2GB board in development
To: Fedora ARM <arm <at> lists.fedoraproject.org>

i'm doing an EOMA68-A33 CPU Card which will cost $5600 to complete the
layout and 5 samples.  i can cover that cost over a couple of months,
so it is going ahead, and first (working) 5 samples should be done and
received by Dec 2014.

if there is anyone who would like to buy either one of the 5 samples
(at a premium) or would like to be part of a group-buy please do
contact me directly.

specifications are:

* Allwinner A33 Quad Core ARM Cortex A7
* 2GByte RAM on a 32-bit interface
* 18-pin RGB/TTL up to 1280x800 resolution
* on-board SMC9514 USB-Ethernet IC (10/100)
* 2x USB2 (480mb/s) on EOMA68 interface
* 1x USB-OTG (can be used to power CPU Card)
* 1x Micro-SD

(Continue reading)

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eoma68 a20 rev 2.2 cpu cards

... have passed testing and are being shipped out to me today.
still todo: the micro-desktop board prototypes.
l.

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Simon Kenyon | 2 Sep 10:26 2014
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thoughts about a set top box

i've been thinking about this over the last year to two.
decided to put it out there to see if anyone a) had any comments b) 
knows of existing hardware or c) interested in collaborating

the idea is for a device which can act as a set top box, either as a 
pure player of content stored or streamed from elsewhere or as a 
receiver of content using one or more DVB-S2/T2 tuners.

design criteria:

- linux
- open source including all drivers and codecs
- fast enough to render 1080p
- hdmi out
- bluetooth/wifi on board
- all connectors on one edge of board so casework can be professional 
quality
- tuners on board or pluggable. i had an idea to re-use the dimensions 
of a standard motherboard and instead of spci slots - have usb plugs 
instead. a tuner could then plug in like a pci card.
- space on the pc for a 2.5" disk (see 
http://www.sinovoip.com.cn/ecp_view.asp?id=554)

--

-- 
simon

Simon Kenyon
Managing Director. The Koala Computer Company Limited
e: simon <at> koala.ie
m: +353 86 240 0005
(Continue reading)

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mendel90 3d printer arrived

also the mendel 90 kit arrived last week, i am about 20% through a
build, it is... challenging shall we say: around 200 nuts/bolts/screws
which i really wasn't expecting!  i'll likely be done by end of this
week and can start experimenting.
l.

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eoma68 trademark

i think i have a solution now to the eoma68 trademark issues, i will
let people know in a couple of months how it goes.
l.

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eoma68-a20 rev 2.2 pcbs done

the rev 2.2 boards are now at wits tech, there are three with 1gb of
RAM, the 2 with 2gb RAM need to be redone, will keep people informed.
l.

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discussion of operating systems on cpu cards

after manuel asked if it was ok to have a specific CPU Card only
support one OS, i had a bit of a think about that, and wanted to run
an idea by everyone.

the discussion is basically "should all CPU Cards work with all base
units with all OSes?" meaning that we have a *three-way* (3D) matrix
of options:

a) CPU Cards
b) base units
c) OSes

previously we had discussed the idea of OSes being able to
auto-download (in some fashion) such that CPU Cards could adapt to the
base unit.

i have an alternative idea which i think may turn out to be more
workable... at least slightly simpler.

the idea is quite simple:

* tie the OS to the CPU Card
* have the OS adapt (as best as possible) to the base unit *without*
needing OS updates (as best as practical)

the implications are that, for example (manuel?) the Gaming OS should
adapt so that if the CPU Card is plugged into a laptop base, it should
go "oh, i am in a laptop base, i have no touch screen but that's ok i
have a mouse, and oh look i have a joystick rather than a set of
analog track-pads".
(Continue reading)

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eoma68-jz4775 cpu card

ok so i contacted the people on linux-mips and the planned prototype
cpu card was very well received, which was really nice.  they pointed
out however that creating 4 cpu cards is a leeetle ambitious :)  well,
it can't be helped, i've been waiting for some time to earn enough
money to pay for them so there is quite a backlog!

l.

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Gmane