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This posting is provided "AS IS" with no warranties, and confers no rights. The opinions expressed within are my own and should not be attributed to any other Individual, Company or the one I work for. I just happen to be a classic techie who is passionate about getting things to work as they should do (and are sometimes advertised and marketed as being able to?) and when I can I drop notes here to help others falling in to the same traps that I have fallen in to. If this has helped then please pass it on - if you feel that I have commented in error or disagree then please feel free to discuss with me either publically or privately? Cheers, Dave
Thin Clients, VDI and Linux integration from the front lines.... Raw and sometimes unedited notes based on my experiences with VMware, Thin Clients, Linux etc.

So in Engadget I've just spotted the following two stories - just shows that with the Hype you also get unexpected concequences? With a small handheld PDA, powerful processor, touch sensitive screen, etc. I'm sure there are going to be all sorts of imaginative uses that this device can be put to other than it's originally intended use as a Phone/iPod?

iPhone firmware hits the internets -- let the hacking begin!

No use on non AT&T networks, A2DP, MMS, chat app, 3rd party programs, widgets, extended codec support, etc.? No problem -- maybe. It looks like the iPhone's system restore image has already shown up online; it might be a while before anyone can deconstruct this thing into meaningful, moddable bits (and perhaps even longer before modded iPhone ROMs can be flashed to users' devices -- everything looks pretty well encrypted at this point), but hacking device software always starts at the same place: a firmware image.

iPhone processor found: 620MHz ARM CPU

Looks like today's morning's firmware leak turned up some well hidden details about the iPhone's hardware engine -- and also confirming some reports we'd previously received. From what we can tell, it looks like the iPhone's got a 620MHz ARM chip running under the hood. Specifics:
  • ARM1176JZF chip with TrustZone (enables trusted computing environment for media, apps, network, OS, etc. -- very bad for hackers)
  • Can vary in clock speed up to 700MHz or more, depending on implementation (thanks, Nigma)
  • ARM Intelligent Energy Manager (claimed to reduce power consumption 25-50% in portables)
  • 16K / 16K cache
  • Features vector floating point coprocessor ("for embedded 3D-graphics")
  • ARM Jazelle enabled for embedded Java execution (hmm...)
  • SIMD, high perf integer CPU (8-stage pipeline, 675 Dhrystone, 2.1 MIPS)
  • 0.45 mW/MHz power draw (with cache)
Whatever it is Apple's got that thing doing, they're doing it right. Thus far our iPhone battery life tests have far exceeded expectations (more on that soon).

Update: Sascha at Gear Log seems to think given the recently discovered Samsung chip in the iPhone, perhaps the processor in question is a Samsung S3C6400, a recently-produced 667MHz ARM1176JZF-based CPU that seems to fit the bill.
Posted on Monday, July 2, 2007 4:48 PM C500/C600 SmartPhone (or replacement) , Real Cool Stuff | Back to top

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