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Help with building Android tablet

Bruno Bertucci
Note: This was originally posted on 15th July 2012 at http://forums.arm.com

Hi there!

I have a school project to do, and I am really considering constructing my own Android tablet for that project. I'm aware that there are many difficulties with this. I'm planning to build something on the high-end for tablets today. This is what I'm planning to do:

I want it to be a 10.1 inch tablet, and I'll use Corning Gorilla Glass 2. I'd probably want to use an 1280 x 800 IPS display, since IPS is the only type of screen I know that is actually good. I'd also like it to be LED-backlit.
Optimally, I'd be looking for a thin, light profile, I think it should be 9.4mm thick (like the New iPad), if not thinner, and no heavier than 650g.
I'm not really giving much importance to cameras, but I think I'd like to have a 1.2MP front camera, and an 8MP rear camera, with an LED flash.
Under the hood is where most of my doubts lie. If I'd have to license an entire SoC, I'd probably be inclined towards NVIDIA Tegra 3, just because of its quad-core capabilities. But honestly, I was wondering whether I couldn't have a custom SoC built. In that case, I'd be willing to have an SoC with a dual-core ARM Cortex A-15, running at 1.5GHz. I'd also want dual-channel LPDDR2 or DDR3L memory controllers, although I'd prefer the DDR3L. For a GPU, I'd really like to have Imagination Technologies' PowerVR SGX543MP2 or MP3. I still have no idea about ISPs (Image Signal Processors) and video encoders/decoders.

I'm very skeptical about how can I take all of the internals and put them all in a chip. I also don't know how all these components go together to function. Any help is much appreciated. All I need to know is: is it actually possible? (by the way, I only have 9 months for this project)

Thanks in advance
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  • Note: This was originally posted on 16th July 2012 at http://forums.arm.com


    Would you have a budget?
    9 months to get a custom SoC designed, tested, and produced seems kind of short to me.


    No, I don't have a specific budget, although my preference is as high-end as possible.
    If 9 months is too little for a custom SoC, do you think that I should buy an existing SoC? If so, I don't know whether I should get NVIDIA's Tegra 3, or the Qualcomm Snapdragon S4, although I do prefer Tegra 3.
    By the way, does someone know whether the Samsung Exynos is licensable? So far, I've only seen it in Samsung devices. I like the Exynos because of it's really powerful GPU, the Mali-400MP.
    Usually, I'd really prefer to have a custom SoC, but if 9 months isn't enough... an existing one will have to do
Reply
  • Note: This was originally posted on 16th July 2012 at http://forums.arm.com


    Would you have a budget?
    9 months to get a custom SoC designed, tested, and produced seems kind of short to me.


    No, I don't have a specific budget, although my preference is as high-end as possible.
    If 9 months is too little for a custom SoC, do you think that I should buy an existing SoC? If so, I don't know whether I should get NVIDIA's Tegra 3, or the Qualcomm Snapdragon S4, although I do prefer Tegra 3.
    By the way, does someone know whether the Samsung Exynos is licensable? So far, I've only seen it in Samsung devices. I like the Exynos because of it's really powerful GPU, the Mali-400MP.
    Usually, I'd really prefer to have a custom SoC, but if 9 months isn't enough... an existing one will have to do
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