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by reiuyi
Sat May 26, 2012 11:12 pm
Forum: General discussion
Topic: Display
Replies: 5
Views: 1081

Re: Display

The volunteers said it will come with time. Work must first be done on a camera module and on the gertboard. All work is done during free time (evening hours, weekends), while all work is relatively difficult even for long-term Broadcom employees The screen they'll develop or support, will presumabl...
by reiuyi
Sat May 26, 2012 11:02 pm
Forum: General discussion
Topic: S-Video port instead of Composite / CVBS or hack??
Replies: 4
Views: 3244

Re: S-Video port instead of Composite / CVBS or hack??

Composite video isn't so bad. It's certainly not full HD high resolution blabla, but it's not bad either

Remember that nearly all early computers (like commodore 64, Atari, SNES, playstation 1) used composite video and it worked fine for displaying gameplay graphics, menu interfaces and text.
by reiuyi
Mon May 14, 2012 9:34 pm
Forum: General discussion
Topic: Design flaw? Polyfuses for USB current limiting
Replies: 245
Views: 108006

Re: Design flaw? Polyfuses for USB current limiting

I think a major issue, however, is that most people just know the term USB and don't realise there is a low power version (max current 100mA) and a high power version (max current 500mA) so people just plug in their devices and expect them to work. And anyway how do you find out if your device is c...
by reiuyi
Mon May 14, 2012 8:55 pm
Forum: General discussion
Topic: First Impressions
Replies: 2
Views: 829

Re: First Impressions

Giving an early Raspberry Pi to a friend as a gift? Dude that's awesome And I must say the "sitting crouched in front of the tv" is something I did many times in the past. Most of the time, it was for playing PS1 or SNES games, though later it was also when connecting my jailbroken ipod to the TV. I...
by reiuyi
Sun May 13, 2012 2:00 pm
Forum: General programming discussion
Topic: Demo Competition?
Replies: 16
Views: 3991

Re: Demo Competition?

There's a lot you can do if you just specify "must run on a standard Pi" and have them supply an SD card already loaded. I would suggest one further rule: the card must not be configured to overclock or overvolt the R-Pi. This is easy to check and enforce beforehand by mounting the FAT partition vi...
by reiuyi
Sun May 13, 2012 8:45 am
Forum: General discussion
Topic: consider using an ultra low dropout 3.3V regulator.
Replies: 1
Views: 929

Re: consider using an ultra low dropout 3.3V regulator.

USB specifications are clear: 4.75v - 5.25v. So the voltage drop for the 3.3v rail is 1.7 volts (when based on 5.0 volts, a mere 1.3v when on the bottom end of the USB specifications). The raspberry pi using a low dropout voltage linear regulator with a dropout voltage of 1 volt should be sufficient...
by reiuyi
Sun May 06, 2012 1:15 pm
Forum: Off topic discussion
Topic: Tayda Electronics review
Replies: 13
Views: 13395

Re: Tayda Electronics review

<t>Dave_G_2 said:<br/> <br/> <br/> As an example, here are some other prices:<br/> <br/> NE5532 (Texas Instruments) from mouser.com $0.62<br/> <br/> NE5532 (Texas Instruments) from Arrow $0.34<br/> <br/> NE5532( Unknown) from Jameco $0.49<br/> <br/> NE5532 (also TI) from Digikey $0.56<br/> <br/> NE5...
by reiuyi
Wed May 02, 2012 10:10 pm
Forum: Off topic discussion
Topic: Tayda Electronics review
Replies: 13
Views: 13395

Re: Tayda Electronics review

<t>For an amateur "on-the-cheap" it's a bit silly going for "quality". Of course cheap Chinese chips won't be as good as the real thing, but is it relevant for most projects? I pay 15 cents for my AND ports and it's okay they don't perform well under extreme conditions or extremely high frequencies....
by reiuyi
Wed May 02, 2012 5:19 pm
Forum: Off topic discussion
Topic: Tayda Electronics review
Replies: 13
Views: 13395

Re: Tayda Electronics review

<t>platinum95 said: <br/> <br/> <br/> Just placed an order with Tayda. How long did it take for your order to arrive?<br/> <br/> <br/> For future users reading this; Tayda Electronics ships from Taipei, Taiwan (last time I ordered something). Shipping is about 2 weeks to Western Europe standard ship...
by reiuyi
Thu Apr 26, 2012 5:45 pm
Forum: General discussion
Topic: The Raspberry Pi Community
Replies: 20
Views: 3226

Re: The Raspberry Pi Community

<t>I'm convinced we all mean well. The majority doesn't really care what you do with your raspberry once you get it. You'll feel the seller's remorse at some point; the realization that money isn't worth as much as the endless fun and learning you'd have with your Raspberry Pi.<br/> <br/> Ignorance ...
by reiuyi
Thu Apr 26, 2012 11:21 am
Forum: General discussion
Topic: Chip's Challenge (Windows 3.1)
Replies: 37
Views: 11850

Re: Chip's Challenge (Windows 3.1)

Remember this at all? It is a testimony to how bad windows 95 really was

by reiuyi
Sun Apr 22, 2012 9:26 pm
Forum: General discussion
Topic: Raspberry Pi as the successor of BBC Micro
Replies: 105
Views: 17479

Re: Raspberry Pi as the successor of BBC Micro

<r>Michael said:<br/> <br/> <br/> Eben touched on the subject a bit during his speech at the Beeb@30 celebration at the beginning of the month: <URL url="http://www.raspberrypi.org/archives/970">http://www.raspberrypi.org/archives/970</URL> starting at time index 11:30<br/> <br/> <br/> Yes;<br/> <br...
by reiuyi
Sun Apr 22, 2012 8:14 pm
Forum: General discussion
Topic: Raspberry Pi as the successor of BBC Micro
Replies: 105
Views: 17479

Re: Raspberry Pi as the successor of BBC Micro

<t>It has been mentioned a couple of times there was some intention of getting the Raspberry Pi computer under the BBC name. I don't have sources for this, but please see it as a possibility within this thread. You could see the Raspberry Pi computer as a successor to the BBC Micro, in a way. Releas...
by reiuyi
Sun Apr 22, 2012 7:54 pm
Forum: General discussion
Topic: Chip's Challenge (Windows 3.1)
Replies: 37
Views: 11850

Re: Chip's Challenge (Windows 3.1)

Windows works just fine on a raspberry pi

Even if that's windows 3.1 running on an emulated CPU
by reiuyi
Mon Apr 16, 2012 8:00 pm
Forum: General discussion
Topic: First Rpi sells on Ebay for more than 160 pounds! What would you sell yours for?
Replies: 38
Views: 5039

Re: First Rpi sells on Ebay for more than 160 pounds! What would you sell yours for?

<t>zag said:<br/> <br/> <br/> Using stock photos isn't against the rules on ebay. The 1st batch were delivered today so its not a "pre sale" either.<br/> <br/> I'm guessing within a couple of days they will go down in price to around £100 on ebay which is when I might be tempted.<br/> <br/> <br/> Pl...
by reiuyi
Mon Apr 16, 2012 7:35 pm
Forum: General discussion
Topic: Really unethical
Replies: 29
Views: 5315

Re: Really unethical

zoltan said:


http://www.ebay.co.uk/itm/140739793135?


Just report them for being pre-sales. Ebay will delete it, unless the seller can clearly prove he is in possession of a raspberry pi.
by reiuyi
Mon Apr 16, 2012 7:33 pm
Forum: General discussion
Topic: First Rpi sells on Ebay for more than 160 pounds! What would you sell yours for?
Replies: 38
Views: 5039

Re: First Rpi sells on Ebay for more than 160 pounds! What would you sell yours for?

<t>I actually reported this user on eBay because he doesn't prove he actually has one (stock photo, standard description). So it might as well be a pre-sale item which isn't allowed on ebay.<br/> <br/> For now you can just report them for being pre-sales on eBay should remove them. Unless the seller...
by reiuyi
Thu Apr 12, 2012 3:48 pm
Forum: Off topic discussion
Topic: Intel 8086 CPU
Replies: 35
Views: 11269

Re: Intel 8086 CPU

<t><br/> <br/> tritonium said: <br/> <br/> <br/> We had to submit a dossier with circuits software etc – we got our money and no more was heard. I gues its all in a drawer somw where…. All done in assembler of course… Happy days<br/> <br/> I just had to go see if I could find the spare and this must...
by reiuyi
Tue Apr 10, 2012 10:26 pm
Forum: General discussion
Topic: Video decoding specs?
Replies: 15
Views: 8909

Re: Video decoding specs?

<r>pmts said:<br/> <br/> <br/> "High profile" is just a set of features, it doesn't say anything about bitrate. There are "Levels" that define max bitrate: <URL url="http://en.wikipedia.org/wiki/H264#Levels">http://en.wikipedia.org/wiki/H264#Levels</URL> . As JamesH wrote, RP decodes up to Level 4.1...
by reiuyi
Tue Apr 10, 2012 9:07 pm
Forum: General discussion
Topic: Video decoding specs?
Replies: 15
Views: 8909

Re: Video decoding specs?

<t>"high profile" is a standard. If you encode high profile 1080p the gpu will play it. I think it was mentioned once the gpu has upto "level 4" h264 support.  You can ask wikipedia to what bitrate that equates.<br/> <br/> The BCM2835 contains the same h264 hardware decoder as the BCM970012, I suspe...
by reiuyi
Tue Apr 10, 2012 8:04 pm
Forum: Off topic discussion
Topic: Intel 8086 CPU
Replies: 35
Views: 11269

Re: Intel 8086 CPU

<t>SN said: <br/> <br/> <br/> Lob0426 said: <br/> <br/> <br/> What is this? The old guys thread!<br/> <br/> <br/> That"s EXACTLY what it is.  And threads like this will continue to thrive until we all have real raspis in our "grubby paws" <br/> <br/> <br/> Hey watch it, I'm not that old . This is on...
by reiuyi
Mon Apr 09, 2012 1:22 pm
Forum: Off topic discussion
Topic: Intel 8086 CPU
Replies: 35
Views: 11269

Re: Intel 8086 CPU

<r>Richard R. Eckert and James L. Antonakos have published some work on a single-board computer design with the 8088 <URL url="http://www.cs.binghamton.edu/~.....rt/sbc.htm">http://www.cs.binghamton.edu/~.....rt/sbc.htm</URL> , and they"ve also made a simplistic diagram showing the address and data-...
by reiuyi
Sun Apr 08, 2012 11:50 pm
Forum: Off topic discussion
Topic: Intel 8086 CPU
Replies: 35
Views: 11269

Re: Intel 8086 CPU

<t>n31l said: <br/> <br/> <br/> When we wrote code for the 8080 we had to split the code between two sets of Eprom and Ram, one for odd bytes and one for even. that way you would half the speed requirements for the chips. cant remember the clock speed but i bet it was less than 1Mhz.<br/> <br/> <br/...
by reiuyi
Sun Apr 08, 2012 6:25 pm
Forum: Off topic discussion
Topic: Electricity Meter.
Replies: 9
Views: 2114

Re: Electricity Meter.

<t>Phil Spiegel said:<br/> <br/> <br/> NOW 'new' providers (probably buying cheaper equipment due to progress) get paid for What they Generate at upto 45p/kWh (approx figures for last year, but now lower for more recent installations), and a bit more for actually exporting it. - but no subsidised in...

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