Earlier quoted context omitted.
I think he means that if no datasheet is available, you can try to reverse engineer it by using, say, a disassembler.
But a dissembler doesn't produce the same information that a datasheets provides? Unless he means to physically disassemble, but that isn't very easy.
Turbocharged Raspberry Pi 2 unleashed
201–210 of 213 posts
Re: Turbocharged Raspberry Pi 2 unleashed
#202It still requires proprietary firmware to function at all. No thanks. Please fix this serious flaw! Edit: And to make things worse, they are giving away gratis Windows 10 licenses for it!
This is actually a great boon. The Windows development environment is incredibly inviting to beginners and it has a lot of power. Linux may be more flexible and open, but it's really hard to get started with when you have no experience programming.
Re: Turbocharged Raspberry Pi 2 unleashed
#203ARM11/(ARMv6)? I thought that core was a dead-end that was quickly replaced by the Cortex-A (ARMv7) series. Surprised to see ARMv6 in new hardware in this age...
The RPi2 uses an ARMv7 Cortex A7 processor, not an ARMv6.
Re: Turbocharged Raspberry Pi 2 unleashed
#204Will it run some version of flash? (and yes I tried gnash to no avail). I spent the weekend explaining to an 8 and 6 y/o that they can't share and look at other Scratch projects at scratch.mit.edu on the RPi :(
Not sure if this might help: https://news.ycombinator.com/item?id=8982251 Probably a performance hit - but with the js performance arms race - maybe not!
Re: Turbocharged Raspberry Pi 2 unleashed
#205Re: Turbocharged Raspberry Pi 2 unleashed
#206Earlier quoted context omitted.
hosting pis without needing/being able to access gpio and such is a silly marketing fad. it must be so ineffective in term of space and heat that i would be surprised that they have a single beefy server running several pis in emulation for the clients.
A fad it may be, but I can attest to them having actual Raspberry Pi devices in colo or at least spending a lot of effort to make it seem like they've put mine in colo (more effort than would be required to just plug in the silly thing). I had a spare Pi sitting around so I loaded it up with a decent SD card, a USB stick, and a barebones Raspbian config and sent it off. It now functions as a backup MX, secondary DNS,…
Re: Turbocharged Raspberry Pi 2 unleashed
#207I really want 2gb. I'm surprised there isn't a market of Pi-like devices, with compatible software, but higher price points and higher specs.
[1]http://www.hardkernel.com/main/products/prdt_info.php?g_code... [2]http://www.hardkernel.com/main/products/prdt_info.php?g_code...
Re: Turbocharged Raspberry Pi 2 unleashed
#208Earlier quoted context omitted.
For teachers one big issue is that you don't know if you can buy 100% compatible devices in a year's time in comparable conditions (price, bulk, availability etc). With Raspberry Pi you know you can.
I wouldn't be so sure about that - the article hints that they're trying to move away from the BCM2835, and in a few years' time the BCM2836 would probably suffer the same fate. In any case I don't think I've seen anything from them about how long they'll continue making Pis, since they depend on Broadcom to provide the SoC. On the other hand, AllWinner's answer about how long it will produce its SoCs... is surprisin…
Re: Turbocharged Raspberry Pi 2 unleashed
#209Earlier quoted context omitted.
Not sure if this might help: https://news.ycombinator.com/item?id=8982251 Probably a performance hit - but with the js performance arms race - maybe not!
That's Scratch 1.4—normal Raspbian comes with it built-in, actually—the trouble is Scratch 2.0, which is fully flash-based.
Re: Turbocharged Raspberry Pi 2 unleashed
#210Earlier quoted context omitted.
Under the "Same" column, it looks like you need to add "Same price - $35". I stocked up on B+s over Christmas - oh well... The "at least 6x" performance claim should be "at least 3x" by the way, and even that is an estimate, not a guarantee. The 3x is on a single thread comparison, the 6x is on a somewhat synthetic multicore benchmark test.
The Cortex-A7 is also faster per-core, per-clock than the old ARM11 processor, and the clock is higher. So with 4x the amount of cores, some multiplier for the per-core, per-clock stats, and 1.28x the clock, 6x makes some (marketing) sense.