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by jamesh
Mon Aug 08, 2011 11:27 am
Forum: General discussion
Topic: Graphics
Replies: 10
Views: 2992

Re: Graphics

<r>And for anyone interested in the Videocore IV GPU itself, here is the Broadcom chip with it in. Not much detail I am afraid, but the specs outlined above cover most of the major features. This chip doesn't have the Arm in it, and isn't the one used on the Raspberry Pi.<br/> <br/> <URL url="http:/...
by jamesh
Mon Aug 08, 2011 7:18 am
Forum: General discussion
Topic: Wifi
Replies: 7
Views: 2931

Re: Wifi

Remember the R-Pi runs Linux which supports a lot of Wireless USB dongles (but not all) out of the box. Cost about $10-$15, so unlikely to be shipped with the device itself as that would increase the price too much and many may not need it.
by jamesh
Sun Aug 07, 2011 6:05 pm
Forum: General discussion
Topic: Broadcom BCM2835 SoC
Replies: 196
Views: 42406

Re: Broadcom BCM2835 SoC

<t><br/> TBH, I'm not aware of anyone who genuinely open sources all of their multimedia.<br/> At least AMD and Intel do.<br/> <br/> <br/> I believe that they don't open source the firmware blob running on the chip itself - just the drivers (which don't usually do any real work). Please correct me i...
by jamesh
Sun Aug 07, 2011 5:59 pm
Forum: General discussion
Topic: Broadcom BCM2835 SoC
Replies: 196
Views: 42406

Re: Broadcom BCM2835 SoC

<t>I'm not sure whether people above are talking about the linux drives, or the binary firmware blob that runs on the MM chip itself, but remember, the drivers give you access to the firmware on the MM chip. There is a lot of firmware running on that chip which stays closed, which nobody really need...
by jamesh
Sat Jul 30, 2011 8:29 pm
Forum: Staffroom, classroom and projects
Topic: Fond memories
Replies: 42
Views: 12670

Re: Fond memories

<t>I was a BBC micro boy (serial number 3335 - it's in the loft). BBC basic and 6502 assembler, writing adventures games, shoot em ups etc. I entered and won the Cambridge regional heats of a competition run by Acorn to write a game based on Tron - anyone else remember that compo? Wrote a text adven...
by jamesh
Sat Jul 30, 2011 8:23 pm
Forum: Staffroom, classroom and projects
Topic: Raspberry pi, computer science tool for the masses?
Replies: 31
Views: 10208

Re: Raspberry pi, computer science tool for the masses?

Or perhaps just have 2 SD cards? Or however many SD cards you need for all your different OS's. Just keep one unchanged so you can always revert to as new condition.

There's no flash on board, so all the required OS data is on the SD card.
by jamesh
Sat Jul 30, 2011 8:17 pm
Forum: General discussion
Topic: Questions asked and opinions wanted.
Replies: 14
Views: 3919

Re: Questions asked and opinions wanted.

Sorry I was thinking higher quality (i.e. >VGA and 30fps or so) , but you are right, a webcam would work if that gives you sufficient image quality. You still might have issues when using multiple cameras and with latency over the wifi link.
by jamesh
Sat Jul 30, 2011 8:05 pm
Forum: General discussion
Topic: Alpha Version
Replies: 21
Views: 6628

Re: Alpha Version

If you know of an publically available Arm linux build of Adobe Flash player, that uses an accelerated OpenVG backend, then it could play back flash. I don't think native arm code would be fast enough. I'm not sure Adobe have released one. I do however, know it's possible.
by jamesh
Sat Jul 30, 2011 8:00 pm
Forum: General discussion
Topic: h.264 decoding level
Replies: 12
Views: 11221

Re: h.264 decoding level

It's not the ARM, it's the GPU that does all the hard work.
by jamesh
Sat Jul 30, 2011 7:55 pm
Forum: General discussion
Topic: Questions about OS and BIOS
Replies: 13
Views: 6529

Re: Questions about OS and BIOS

As long as the OS of your choice had ported all the appropriate drivers for the GPU (display control would be the obvious one), which won't be a trivial task, I think that might work.
by jamesh
Sat Jul 30, 2011 7:50 pm
Forum: General discussion
Topic: Teaching tool and shares in Raspberry Pi
Replies: 12
Views: 3297

Re: Teaching tool and shares in Raspberry Pi

<t>Don't think there is much point in having shares in a charity. All money is reinvested in the charity, so no dividend, so no real way of making money, which to be honest, isn't the point of a charity in the first place (at least in the UK)<br/> <br/> As to language - if there is a linux ARM port ...
by jamesh
Sat Jul 30, 2011 7:46 pm
Forum: General discussion
Topic: Questions asked and opinions wanted.
Replies: 14
Views: 3919

Re: Questions asked and opinions wanted.

<t>The Raspberry Pi does have a camera port on it, but getting a camera for it may be difficult unless you rip apart a smartphone...camera manufacturers usually only sell in large quantities.<br/> <br/> Main difficulty will be coding the video stream fast enough and small enough to send it over wifi...

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