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No, production of the new boards has just started. I think the last prototypes are from November. This could imply that the cause was not power delivery related after all. If the magic bit is the RAM impedance calibration enable bit, then that's really perplexing. How could impedance mismatch...

Sure, it should be the same as on any linux PC, e.g. you can use cpupower to set the maximum frequency. But if the CPU is mostly idle, then (maximum) frequency hardly matters. Generally, the newer mobile standards spend less energy per bit, but use more power at full blast because of their...

Nah, that would just slow down the hacking a bit.

The 1.7 number comes from around 2014 when TI was still hopeful about the OMAP line. They were going to sell a normal 1.5Ghz SKU and a 1.7Ghz "speedbin" one. Of course, OMAP5432 was promoted as "up to 1.7Ghz". This is similar to how the OMAP3 was marketed as 720Mhz, but the 720Mhz version was...

To expand on that, there's a load switch (TPS22963C) you can turn off in software to keep the modem without power. If you do want to get physical, I guess lopping off the sense resistor (used for measuring the power use of the modem) would be easiest. Though it would be nicer insted if you...

When I tried tethering a Galaxy Tab to my desktop, it showed up as an USB ethernet device. I had to type something like sudo dhcpcd usb0 to use it, but if the Pyra comes with NetworkManager, then that will take care of it. So yes, it will be possible and easy.

So, the schematics are out, time to dig out this topic! It turns out the USB host ports are powered by a TPS2505, a 1.1A boost converter. The chip has the capability to limit current per port, but the chosen resistor value is such that there's essentially no limiting; either port can sink all...

More random: How are your IP settings? Can you force a new DHCP lease? How does a traceroute look? And do you get a complete blackout or just very high packet loss? Try changing the service type (2G, 3G, etc) for data packets. Check with an app (or with AT commands, if you're hardcore)...

But a search for "x32 ddr3" does bring up some products. It's just not a JEDEC standard.

I'm no expert on ARM or on assembly, so take these with a grain of salt. AFAICT this makes the next store unaligned. Doesn't that create a problem on ARM? I think you want sub r0, #4, or use strh in the next line. What exactly does this put in r1? If it's 0xFFFF0FFF, then that's one white and...

When running on battery, the charger chip (if it's the bq24296) can provide 1.5A to VUSB. And if you connect a charger, I think that will directly power the other USB ports.

That's called a branch delay slot. The Pandora's DSP has them, too.

It's not very important. The OMAP5 officially supports up to 532Mhz, and typical RAM chips are faster nowadays. The prototypes from last year have 800 MHz chips. (DDR3-1600)

Let me try:). Assuming 250ml of water plus 75 grams of noodles of 1700 J / Kg°C specific heat, and ignoring spices and the cup (those are only a few grams anyway), I get 25.6Wh of energy needed to heat it from 21°C to 100°C. Interestingly, that's in the same ballpark as the Pyra's battery...

Each channel is 32 bits wide, while the memory chips are 16. I've not seen x32 DDR3 chips, only x4, x8, and x16. Edit: Actually, a quick search says there are x32 packages. I wonder why that wasn't chosen to save space. Anyway, the prototype PCB here has x16 chips. It can't be changed without...

OK, I'll be that guy and point out that taking away half the memory chips will halve memory bandwidth. That will obviously decrease active power consumption, just not energy per bit. *hides*

OpenGL support on the Pyra will be the same as on the Pandora. That is, OpenGL ES 1.1, ES 2.0, and some of OpenGL 1.x via glshim. The newer versions you mention are clearly in the 'Never Going to Happen' category. Pyra's SDL will have the same additional features as Pandora's. I think these...

It's the bin packing problem in one dimension. Krusader can do that.

The Pyra's charger chip doesn't need CPU oversight, so i guess you wouldn't even need a SoC board. Also, you could just use a Pyra case (with or without the display part) instead of dropping several grand on new plastic molds. Still won't beat WizardStan's solution's price, though.

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...