MIPI, Keymats, Batteries and Memory

Discussion in 'Pyra News' started by EvilDragon, Feb 22, 2014.

  1. TeDaDeS

    TeDaDeS Very Active Member

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    6000mAh is sweet. Great idea if it would fit into the pandora.
    2GB of RAM is a lot, but if it is available people will find uses that will say it isn't enough.
     
  2. matzesu

    matzesu Hardcore Member

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    Wonder, how long i can play Tetris on my Pyra whit this much Akkupower: 6000 mah is a lot

    1,5 Times more Fun..

    Reminds me on the Duracell Rabitts..

    I often play whit dimmed Backlight, as i not often in the Sun, so it will left much longer..

    Whit your plan, a Main PCB and a tiny SOC PCB to make, this sound interesting..

    One reason for your MIPI Issues could be, Dragonbox isnt inportant enought for the Chipp Manufaktorers to support you corektly..
     
  3. SNESFAN

    SNESFAN Retro game fanatic

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    All the points sound really good, 6000mah is much better sounding than 4200mah should get a respectable amount of use out of it. I think if you go with a processor with big.little that should be fine for maintaining "pandora level" of battery life estimates. If you go with the omap it might be better to look at something at least 7000mah or larger. That's just a guess obviously, but having an open mind in finding a balance in this area rather than forcing forward compatibility is what's more important.

    I agree 2GB seems practical, more would be future proofing, but I'm sure that may not be the most cost, space, and power effective way of getting it. Maybe in the future a solution similar to the way the Pandora was upgraded with double the ram can be gotten. It will be more than enough for today's OS's and should serve people well for a couple years anyway.

    The ability to have a removable internal as an option in addition to a non removable fast internal sounds like a solid plan for future proofing the thing that would get outdated probably first, hope it actually happens. It being accessible without disassembly would be preferred but if the pyra is as simple to open as the Pandora is then that shouldn't be that big of an issue. Sim card replacement seems like the more possible situation where you would want to have convenient removable and if that is accessible I can see putting the internal in the same area as an obvious thing.

    If all goes as planned you'll have my money and I'm sure many others and a pretty swell predecessor.
     
    Last edited by a moderator: Feb 22, 2014
  4. Exophase

    Exophase Nothing good will ever come of Exophase.

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    The higher capacity battery sounds like an easy decision to me, especially if it's no more than a few EUR extra.
     
  5. hns

    hns Very Active Member

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    The problem is that "MIPI" is not a standard plug where both ends are certified. Yes, they are - but not completely. Only on the physical layers. It is like that you can plug in any USB device into a USB socket. But it does not work on your machine, because you don't find a compatible driver. But it may work on another one. So you try to write your own driver. Or you have a web browser and can't open some page (isn't http and html standardized?).Why do the gazillions devices appear to have less problems?

    1. they don't use the latest and greatest display like we try

    2. they have more people on their payroll to run around the world to knock at doors (so they may get answers faster than we do)

    3. they are members of the MIPI organization (I think that costs >25000 USD membership fee per year) and therefore have a more direct contact

    4. they have much more expensive equipment for analyzing circuits (e.g. a 16 channnel 5 GHz logic analyser or a special MIPI-DSI tester like one built by Agilent)

    5. they buy reference designs where someone has done exactly the same challenging and time-consuming task we are doing (and reporting to the public) - but some months ago and behind the curtain - so it appears that it was easy for them

    So they don't talk as much about issues, and may be faster because they spend more money on it.
     
    Last edited by a moderator: Feb 23, 2014
  6. fusion_power

    fusion_power Advanced Member

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    This all somehow makes no sense (due Pandora development, MIPI was afaik not even mentioned once), at least not if they actualy WANT a easy to use standard at all. Sounds like this is not the case. Sad, that the display manufactureres don't deliver their hardware with the matching drivers, I guess this would make stuff a little bit easier then. ^^"So good luck with the new LCD, I'm sure you will find a solution. :)
     
    Last edited by a moderator: Feb 23, 2014
  7. Exophase

    Exophase Nothing good will ever come of Exophase.

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    Making the electrical protocol a standard is helpful and it solves a lot of problems, but it doesn't mean that all of the devices will have the same data protocol. Things would still be even worse if there was a custom electrical protocol used here.

    The LCD manufacturer should have good documentation and even reference code for interfacing with it, any lack of this is a big failure on their part. But maybe they have all that stuff more readily for the big payers who buy from them directly instead of through distributors..
     
    Binky likes this.
  8. fusion_power

    fusion_power Advanced Member

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    I hope not, this would be unfair.  Customer is customer so everyone that buys their LCDs should be able to use it without much trouble. Otherwise it would not make sense to sell their stuff to low quantities that may get the hardware but not the software.

    My Fairness-senses are tingeling...
     
  9. God Ginrai

    God Ginrai Godmaster

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    • Good to hear you're making progress with MIPI. Sad that it's taking so long. :\
    • How much of the keymat will be transparent?
    • I'd love the microSSD with accompanying microSD option. However, if we can't get that, I'd prefer the microSD only option.
    • Glad to hear you've found a solution for increasing the battery life. :)
    -God Ginrai
     
  10. Hồng Thất Công

    Hồng Thất Công Đả Cẩu Bổng Pháp

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    Since when we are treated fairly?  Ed had to pay premium for most of Pandora's parts since we are small fish.  So Pyra will be similar...
     
  11. zonova

    zonova Member

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    Thanks ED! :)
     
  12. ShleeDragon

    ShleeDragon Pro-Catflip

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    you're the man now dog.
     
  13. Kiga

    Kiga Active Member

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    In my opinion 6000mah is a bad decision

    Because with 4200mah you would have a lighter thinner and cheaper Pyra, and you could carry a 4200 thin and light battery which would make 8400mah.

    Whereas with 6000 mah you have a heavy, thick, most expensive Pya, and if you want to have more battery, you have to carry a cumbersome 6000 mah battery or a 4200mah with a big frame. Both alternative are too much for pockets.

    So 6000mah don't worth the trouble, 4200mah would be better or the best choice would be ≧8000mah.
     
  14. Natsu

    Natsu Advanced Member

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    How do you know it's going to be a big case? If you decide to pick the Pandora battery, it would make sense to have smaller cases.

    Besides, he already said, it shouldn't add that much size.
     
  15. Kiga

    Kiga Active Member

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    Logically, as big as a 6000mah battery

    I've never seen it. Where?
     
  16. Natsu

    Natsu Advanced Member

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    I said if you wanted to use the Pandora battery, you don't think there wouldn't be a smallercase option?

    I can't point it out now, but he basically said the lid is smaller, soweight and size should be about the same.
     
  17. Exophase

    Exophase Nothing good will ever come of Exophase.

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    ED says he thinks it can be done without increasing the volume of the unit at all.

    Presumably that means keeping it close to the same thickness as the Pandora, which most people are okay with.
     
  18. Kiga

    Kiga Active Member

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    Okay, I didn't understand at all. I meant if 4200 is chosen, there will be a thinner case than 6000.

    6000 would be bigger  and if you want to add battery life you should carry another 6000 battery or 4200+frame which are too much for pockets.
     
    Last edited by a moderator: Feb 24, 2014
  19. Natsu

    Natsu Advanced Member

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    Yes, 4200 would make a thinner case. Yes, 6000 would be thicker than 4200.6000 as the default battery, doesn't mean you can't oped out for 4200+smaller frame/case/cover.

    Edit: Under the assumption that the whole bottom comes off.
     
    Last edited by a moderator: Feb 24, 2014
  20. thatgui

    thatgui Advanced Member

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    ED an Gta04 are the ones who know, but I have a hard time believing that they can fit all the stuff in, they currently planning to, without making the Pyra bigger than the Pandora.
    I'm also not happy about the bigger battery if it increases the size and the weight of the unit. The Pandora is already only semi pockatable and with the Pyra beeing bigger, we are (I'm exaggerating a bit) "trending" towards netbook usecases (the Pyra won't have the size of a netbook, but if it exceeds a certain size there isn't really a difference anymore, imho).
     

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