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Comment: Re:Complicated? (Score 1) 112

by doogledog (#38073102) Attached to: Raspberry Pi PCB Layout Revealed

Although TI are a lot more forthcoming with datasheets they will still hold back information on things like the DSP core inside an ARM SoC. So you get DSP based codecs as binary blobs and no information on how to target the DSP yourself. And then further up, in the same family, you'll get a similar processor that *does* have an accessible DSP core... but you have to pay for the privilege in chip cost (and it only makes sense to do that if you actually need that feature).
Then again, as you said, TI are good at letting you buy small amounts of these chips as well as devkits so it makes sense for most of the information about the chip to be accessible. There's no chance of going to Farnell and buying one of these Broadcom processors.

Comment: Re:Bank, please explain me once again... (Score 1) 161

by doogledog (#35280960) Attached to: Financial Malware Hijacks Online Banking Sessions

As long as they use some kind of virtual machine / presentation system that is supported by multiple platforms, then there would be no problem.

It'd need some way of presenting text and graphics (using some standardised system to represent that data), a way to control the rendering of that media and finally, a way of describing how interactive client-side behaviour would operate. If everyone agrees on how these three features would be described and represented, as well as how the network protocols would operate, then it would provide a solid platform to develop applications such as these... and possibly others!

Comment: Re:So it's a bit like a software JTAG, but not... (Score 1) 154

by doogledog (#34206340) Attached to: Hidden Debug Mode Found In AMD Processors

I'd say password protected and undocumented is far more hidden than a unpopulated footprint marked 'jtag' (I know I know, not all hardware debug i/faces are always that obvious either :-)
But yeah, no one should be particularly surprised... these are ridiculously complex chips and would be impossible to develop and debug (the chip that is, not software for it) without extra hidden circuitry.

Comment: Re:So it's a software JTAG (Score 1) 154

by doogledog (#34205950) Attached to: Hidden Debug Mode Found In AMD Processors

I'm just guessing, as the site is still inaccessible, but it sounds like this is a set of debug functionality beyond what you'd get with the normal debug registers or with a JTAG interface. AFAIK modern desktop/server processors still have JTAG interfaces (not just SoC, embedded type processors). Sure JTAG interfaces are often 'hidden' as you say... maybe there's a footprint there but you have to solder on some flying leads or a connector.. but without knowing about these new registers you still wouldn't be able to use these debug features over JTAG.

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Comment: Re:Wonderful (Score 1) 217

by doogledog (#34054962) Attached to: The iPhone Serial Port Hack

Because not everyone has the time, ability or inclination to put down a uController in a schematic, surround it with power circuitry and whatever basic logic and signal conditioning they might need, then layout a PCB for that schematic, then send off their design to a PCB house or make it themselves using one of a few different methods, before finding out that they messed something up that they can't fix with a cut-and-strap (or that it doesn't work but they don't know how to fault-find well enough to fix the issue) and have to GO TO 10 until they get it right.

Arduinos and other similar development/prototyping boards are great for people who are happy to plug various building blocks into each other to get the overall hardware design they need and want to get something working quickly and easily, without getting bogged down in a lot of the stuff usually involved in embedded design and development.

I've got no desire to play around with Arduinos as I much prefer working at the lower level (eg. PIC asm or C), or the higher level (eg. Linux on ARM9), but on more than one occasion I have recommended them when non-embedded developer friends have started talking to me about an embedded project they would like to tackle but don't know where to start.

(just realised this is way off-topic, but meh)

Man must shape his tools lest they shape him. -- Arthur R. Miller

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