Preparing a Pyra conference, need informations


Linux-SWAT said:
An idea about the idle/low task (mp3) power consumption vs the OP ?
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Hard to say for sure without the actual prototypes, also what mode the device is in can make things differ greatly. 

I ran an experiment last year, While it's not low task power consumption, but under full CPU load I found the power consumption to be about the same as the Pandora if not a tad less, but I'm comparing the devboard vs a product with an LCD and such. It was done on my cheap multimeter and not professional analyzer... so take it with a grain of salt.

https://www.youtube.com/watch?v=FOyjxOpL0WQ
 
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Linux-SWAT said:
Ok.


Will the non-3G have the micro-SD slot inside ?
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Yes, even the Sim-Card Slot.

Linux-SWAT said:
Will the Pyra be "unbrickable" with the bootloader in rom like the OP ?
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Yes.

Linux-SWAT said:
Will it have both PCM1773 & TPA6110A op amp ?
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No, only the prototypes have. We'll test which one works best.

Linux-SWAT said:
The micro-USB is the serial port ?
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We've got two Micro-USB ports. One MicroUSB 3.0 OTG and one that can only be used for charging AND it provides serial out.


So developers can use the serial output for debugging and still have all the USB ports free :)

Linux-SWAT said:
Any more details about the screen ?
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What details would you like to know?

Linux-SWAT said:
An idea about the idle/low task (mp3) power consumption vs the OP ?
Click to expand...



Not easy to answer, as the devboard is not optimized for power consumption (even when switched off it eats 300mA...) and the prototypes are not finished.


In THEORY the OMAP5 should need LESS power than the Pandora for the same tasks (at least, according to TIs power consumption documents).


So with the 6000mAh, listening to MP3 or playing SNES SHOULD last a lot longer with the Pandora.


When the OMAP5 is in full usage, it can use A LOT more battery though - so the battery time might be something between 3 and 20 hours...


Also, keep in mind that that's only the power consumption information for the OMAP5, not for any other components.


So I'd take everything with a HUGE grain of salt until we tested it.
 
EvilDragon said:
2. UMTS and a hardware switch


Some of you here at the boards had a bit of a concern with the (optional) UMTS module:


A modified firmware or software could be created to misuse the UMTS module and send data somewhere without the user knowing it - so they asked for a hardware switch to completely turn off the module physically.


Well, we thought about that - but adding a switch would increase the costs quite a bit (mold would be more complicated, switch would be needed, etc).


However, we found another, pretty cheap but effective solution:


We plan to include a small power measurement chip into the hardware, that is hardwired to a small LED.


Whenever the UMTS module needs power (which it does when it will be activated), the LED will light up.


This hardwiring cannot be changed in software, so you will KNOW when your UMTS module will be active!
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@EvilDragon Is this still planned?
 
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Linux-SWAT said:
Any more details about the screen ?
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If you like playing detective, start with these photos. If not, look here, but don't be put off by the claimed response time; ED is pleased with the panel's speed.

Linux-SWAT said:
Will it have both PCM1773 & TPA6110A op amp ?
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The way you worded that makes me worry. So I'll put this here so you don't embarrass yourself in Toulouse. Please don't mind me if you already know this :)


The PCM1773 is a DAC and the TPA6110A is an amp. They are used together in the Pandora. They will be included in the Pyra only if testing shows a significant advantage over the TWL6040, enough to convince the team it's worth the extra cost.


The TWL6040 has multiple DACs and amps in a single chip. It will be present either way because it also handles the mic and the vibra.
 
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I think the display is good...according to the net seems used on a bunch of Lenovo phones (Lenovo S850T S859 S828 A785 A780 Capactive Wholesale LCD Display replacement BTL507212-W677L).


Here is a video of a smartphone using this screen.


https://youtu.be/gxd2s_uB4Hw
 
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The conference is cancelled due to events in France, but anyway, I'd like to know if the RAM will be DDR3 or DDR3L.
 
Well in this Tweet, ED mentions DDR3, as the OMAP5 can only handle LPDDR2 or regular DDR3, I would think it maybe just that. Power consumption wise LPDDR2 would be a better option honestly.  

Edit: I guess the OMAP5430 can supports the LPDDR2 in a PoP module, the OMAP5432(in the Pyra) can only use regular DDR3 and the package doesn't support the LPDDR2 PoP module. The OMAP5430 was Dead on Arrival, so yeah...


This is on page 299 of the OMAP5 Technical Reference guide I can't share online.

EDIT2:

Well just to confuse things further the OMAP5 EVM quickstart guide claims to be using DDR3L, so perhaps it can use it.

So I guess wait and see what hns says.
 
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The only difference between DDR3 and DDR3L is the supply voltage (1.5V and 1.35V, respectively), so people often omit the distinction. Today, there's little reason to get 1.5V chips. The OMAP5 supports both (see Memory Subsystem Overview > EMIF Overview in the public TRM). IIRC, the CPU board prototype was seen with DDR3L. (In Intelligent Memory's part numbering, D3E is DDR3 and D3F is DDR3L.)
 
pocak said:
The only difference between DDR3 and DDR3L is the supply voltage (1.5V and 1.35V, respectively), so people often omit the distinction. Today, there's little reason to get 1.5V chips. The OMAP5 supports both (see Memory Subsystem Overview > EMIF Overview in the public TRM). IIRC, the CPU board prototype was seen with DDR3L. (In Intelligent Memory's part numbering, D3E is DDR3 and D3F is DDR3L.)
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yeah I finally got to there as well, but you beat me to a third edit on my post.  :p  
 
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IMO it would be nice to have DDR3L, but IIRC in the RAM poll thread people said we were getting DDR3...
 
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Linux-SWAT said:
The conference is cancelled due to events in France, but anyway, I'd like to know if the RAM will be DDR3 or DDR3L.
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France has my sympathy and support in these troubling times.  Like many, I'm at a loss for solutions that do not include the suffering of more innocents in the path of rooting out the clearly evil factions involved.


Once you have your information together, it may make a good replacement for the Pyra facts sheet as it will be more comprehensive and up to date.
 
Thx.


Well the french "president" Hollande and his "government" have a lot of responsibility because they wanted so much Bachar El Assad to leave that they let grow those terros, and maybe gave weapons to them.


Now that Russia is involved and is crushing the terros, we are forced to engage so we look like traitors to the terros and they take their revenge.


Anyway, the presentation is 1.0, so I may translate it at some point.
 
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This looks very nice, remembered me we will have rumble motors, yay!


Maybe mentioning the "friendly community" that often attracts trolls, but I dont hope so.


Did you got a prototype, maybe from the Gamescom for a showoff?
 
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