On Sat, May 2, 2015 at 8:51 AM, gacuest@gmail.com wrote:
I have seen that are developing several EOMA-68, but all have very little power or are old (like A20, JZ4775 or IC1T). This makes that many people that are looking for powerful hardware is left out of the EOMA-68 market.
that's why there is a 10 watt version planned (10mm high CPU Card).
also, it is why EOMA-200 exists. "more powerful" hardware means "more power".
What is the future of EOMA-68?
the future of EOMA-68 is a decade-long standard. anything and everything *will* happen, in good time, as long as it fits within the specification (including the power budget).
Any EOMA-68 with a powerful hardware (like Tegra X1 or Intel Bay-Trail)?
hi gacuest,
powerful hardware means the following:
* 10 to 200 Watts (EOMA68's entire budget because it is passive cooled is an absolute max of 5 watts and that has to include the DDR RAM and anything else)
* lower geometry (22nm, 14nm, 10nm) so that the speed is faster for less power.
so there are a couple of things that can be done. a couple of "cheats" so to speak. the first is that you can get this "more powerful" hardware, and you can run it for a short duration flat-out, monitor the ampage and the temperature, and if exceeded STOP running flat-out.
the second is to simply lower the clock speed.
now, before we even get there, we have to gain access to the NVIDIA X1 and to the Intel Bay Trail SoCs.
if you would like to find out for yourself what that's like, can i suggest that you do the experiment for yourself. i set you the exercise of contacting NVIDIA and asking for the following:
(1) a full datasheet and all other technical documentation including power management (2) a Reference Design (including PMIC and DDR RAM layout already done) (3) samples (qty 10 to 25) (4) pricing in volume 250, 2500 and 30,000 for starters. (5) lead times on supply for the above quantities (6) lifetime of the product (i.e. how long it's going to be manufactured for)
once you have this information - *if* you can get this information - and it is reasonable i.e. the Tegra X1 is not going to be discontinued within the next 2-3 months, i will be absolutely delighted, and you can have an EOMA68-X1 CPU Card.
second: dealing with Intel is.... interesting, shall we say. they have the market "subdivided" into segments: consumer, embedded, media and now *shudder* Internet-of-Things.
the different departments are *ACTIVELY* prevented and prohibited from competing with each other!
now, the "consumer" processors are typically only available for up to 9-12 months, and the MOQs are typically 1 million units and above. they're also cheaper: the Z3735F is for example $USD 17 (which btw is *TRIPLE* the price of the Allwinner A20 or the new 64-bit A64!!!)
the "embedded" processors are typically 1100 pins, the PCBs therefore are extraordinarily complex (and costly) - $12 for a 45x78mm PCB would not be an unreasonable estimate (compared to $1.50 for a 6-layer 5mil pitch).
and not only that but the cost of the actual processor itself is *double* (minimum) that of the equivalent "consumer" processor. how could it not be: the yields on a 1,100 pin processor are much less than on a 600-pin one, and the demand is less so they can't optimise the fab to get better yields. or, if they do, they make lots, but then have to store them for 5 years in order to guarantee the "embedded" status.
now can you see why these "more powerful" processors are not yet available in EOMA68 form-factor? it's purely the logistics of dealing with these companies.
by complete contrast, the A20 and all the Allwinner processors, by way of being extremely popular, and by way of Allwinner being extremely helpful in giving me Reference Designs with the DDR3 RAM layout already done, and by way of it being possible to get hold of samples from random china suppliers....
can you see and appreciate the difference?
now, Ingenic, Allwinner and ICubeCorp have been *cooperative*. Texas Instruments and Freescale could also be said to be cooperative - after all they provide things like the iMXQSB Reference Design and BeagleBoard Reference Designs, and 1200 page reference manuals. BUT, unlike Texas Instruments and Freescale, the cost of the processors is:
* ICubeCorp IC3128: $2 (yes, USD 2.00 exactly) * Ingenic JZ4775: $3. (yes, USD 3.00) * Allwinner A20: $5 (yes, USD 5.00)
contrast this with:
* Freescale iMX6 Quad: ***THIRTY FIVE*** (35) US DOLLARS
* TI single-core Beagle Black processor: $5... but its performance is *LESS* than that of the Ingenic JZ4775.
does that help explain, then, why the processors that are available in EOMA68 form-factor are available, and why those processors that you have listed are not yet available?
i would _love_ to be able to make the processors that you have listed available, and if _you_ would like them to be made available, you can help by finding out the information (1) through (6) listed above, finding the funding required for the prototypes (which will be somewhere around an estimated $USD 20,000 each) and then finding a customer or customers that are willing to place the MOQ quantities all at the same time.
am i making it clear that this stuff is really quite challenging?!!! :)
l.