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by rickyjames
Wed Aug 12, 2015 3:58 pm
Forum: Off topic discussion
Topic: Open Source $9 CHIP Message Board Now Open
Replies: 2
Views: 859

Open Source $9 CHIP Message Board Now Open

Come check out the new message board and community springing up for the new $9 CHIP open-source computer module! https://www.kickstarter.com/projects/1598272670/chip-the-worlds-first-9-computer/description http://bbs.nextthing.co/c/CHIP It's all open source (no proprietary Broadcomm binary blobs!): ...
by rickyjames
Tue Feb 10, 2015 2:39 pm
Forum: Off topic discussion
Topic: Hardkernel ODROID-C1 is a $35 Development Board
Replies: 147
Views: 30387

Re: Hardkernel ODROID-C1 is a $35 Development Board

As jamesh said at http://www.raspberrypi.org/forums/viewtopic.php?p=685177#p685177 : "Two years ago, 2017 would have been the best date for a new Pi, but the technology world changes quickly. Things like the ODROID-C1 mean that for the same price there was much more competent device, and something n...
by rickyjames
Tue Feb 10, 2015 1:31 pm
Forum: Off topic discussion
Topic: Rasp Pi 2 Vs. ODROID-C1 : Benchmarks!
Replies: 8
Views: 13589

Rasp Pi 2 Vs. ODROID-C1 : Benchmarks!

As jamesh said at http://www.raspberrypi.org/forums/viewtopic.php?p=685177#p685177 : "Two years ago, 2017 would have been the best date for a new Pi, but the technology world changes quickly. Things like the ODROID-C1 mean that for the same price there was much more competent device, and something n...
by rickyjames
Fri Dec 27, 2013 11:33 am
Forum: Off topic discussion
Topic: Help Bootstrap "NXT" an innovative successor to Bitcoin
Replies: 32
Views: 14892

Re: Help Bootstrap "NXT" an innovative successor to Bitcoin

10 NXT (currently worth around 1 USD total) sent to synace. Scheduled to show up within 24 hours, should show up much sooner. A so-called "faucet" to obtain small numbers of free NXT coins for new account validation has been set up at http://nxtra.org/faucet/ . Future new Raspberry Pi NXT accounts s...
by rickyjames
Thu Dec 26, 2013 9:20 pm
Forum: Off topic discussion
Topic: Help Bootstrap "NXT" an innovative successor to Bitcoin
Replies: 32
Views: 14892

Re: Help Bootstrap "NXT" an innovative successor to Bitcoin

10 NXT (currently worth around 1 USD total) sent to JF002, Jednorozec and RaspberryJonny. Scheduled to show up within 24 hours, should show up much sooner.
by rickyjames
Thu Dec 26, 2013 6:11 pm
Forum: Off topic discussion
Topic: Help Bootstrap "NXT" an innovative successor to Bitcoin
Replies: 32
Views: 14892

Re: Help Bootstrap "NXT" an innovative successor to Bitcoin

Once you get an installation of NXT running on a raspberry pi and have it running quietly in the background on your corner of the internet, post your numeric only account number here on this forum and somebody will send you 10 NXT coins. This account number is in the upper left of your browser windo...
by rickyjames
Wed Dec 25, 2013 8:38 pm
Forum: Off topic discussion
Topic: Help Bootstrap "NXT" an innovative successor to Bitcoin
Replies: 32
Views: 14892

Re: Help Bootstrap "NXT" an innovative successor to Bitcoin

OK, background to all of this. Maybe you've heard of Bitcoin (http://en.wikipedia.org/wiki/Bitcoin) in the news lately, maybe not. It's a new kind of digital money that was started five years ago that has grown into a billion-dollar business today. It depends on volunteers running computers in the b...
by rickyjames
Wed Dec 25, 2013 7:52 pm
Forum: Off topic discussion
Topic: Help Bootstrap "NXT" an innovative successor to Bitcoin
Replies: 32
Views: 14892

Re: Help Bootstrap "NXT" an innovative successor to Bitcoin

This is a long story, bear with me a second. The people that wandered in above asking for help [Ola and landomata] are in the middle of a war, fighting for something they care about very much (and I do too), so they are sleep deprived and a little shell shocked and perhaps sound a little crazed. Bef...
by rickyjames
Wed Jul 10, 2013 2:31 pm
Forum: Off topic discussion
Topic: Orange Raspberry
Replies: 1
Views: 756

Orange Raspberry

Interesting, there is now a breed of orange raspberries (to eat) along with the more traditional color...

http://www.dailymail.co.uk/sciencetech/ ... salad.html
by rickyjames
Fri Mar 22, 2013 1:55 pm
Forum: Staffroom, classroom and projects
Topic: CS Ed In Vietnam
Replies: 2
Views: 1452

CS Ed In Vietnam

Very interesting blog by a Google engineer who visited grade-school and high school computer classes in Vietnam.

http://neil.fraser.name/news/2013/03/16/

As reported in El Reg:

http://www.theregister.co.uk/2013/03/22 ... view_pass/
by rickyjames
Wed Mar 28, 2012 12:02 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<r>Thanks for your thoughts and links.<br/> <br/> Data capture is indeed the headache here.  I initially looked at several SERIAL based SRAM chips (not the SPI version you specified, tho) and ultimately had to give up on all of them.  The problem is the Aptiva.  When it does a data dump, it does its...
by rickyjames
Mon Mar 26, 2012 7:36 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<r>No, it was GordonH that did some video calculations in this thread, and I was referring to those – and not in a snide or cutting way, please don"t misunderstand!<br/> <br/> Below is a somewhat dated PDF article from around five years ago that talks about the Micron TrueSnap technology which kicke...
by rickyjames
Mon Mar 26, 2012 2:59 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<r>Imagine if schoolkids could do that.<br/> <br/> Here's why "current-gen" rolling shutter video tech can't do freeze-action.  "Next-gen global shutter" CMOS chips that have just come out in the past few years makes it possible, and even cheaply:<br/> <br/> <URL url="http://en.wikipedia.org/wiki/R....
by rickyjames
Mon Mar 26, 2012 2:58 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<r><br/> GordonH said: <br/> <br/> Although some of the nature stuff I saw a while back was really cool - basically a very high speed digital camera with lots of on-board storage that could only take something like 3 seconds of video, then need 5 minutes to transfer it to a host PC/Laptop... At 60fp...
by rickyjames
Mon Mar 26, 2012 1:10 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<t>(Sigh…how DOES this quote stuff work? Would an RPi Admin please delete my previous identical-but-shaded post?)<br/> <br/> Funny, both times I"ve mentioned doing ths project in the forums as a STILL IMAGE camera, everybody immediately starts doing calculations showing that the RPi transfer rate or...
by rickyjames
Sun Mar 25, 2012 7:04 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<r>Sigh.  The more details I go into the more like a lunatic I"m gonna seem, but so be it.  This is a digital camera still-photo add-on expansion board for the RPi using the Aptina MT9V032 CMOS sensor.<br/> <br/> <URL url="http://www.1stvision.com/camer.....2_DS_D.pdf">http://www.1stvision.com/camer...
by rickyjames
Sun Mar 25, 2012 5:54 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<t>More details on what I am trying to do:<br/> <br/> I am creating a RPi expansion board with 512K of onboard static RAM and I want to use the RPi to download and save as a file the contents of this RAM when it is fully loaded by sensors on the expansion board.   I am sequentially generating approp...
by rickyjames
Sun Mar 25, 2012 1:35 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<r>I'm starting to think a RAMDISK is the simplest approach to do what I want:<br/> <br/> <URL url="http://www.vanemery.com/Linux/.....mdisk.html">http://www.vanemery.com/Linux/.....mdisk.html</URL><br/> <br/> Plus a good overview of Linux memory management in general:<br/> <br/> <URL url="http://ww...
by rickyjames
Sun Mar 25, 2012 1:05 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<r>From what I know in a "general" sense, you are absolutely correct.  Linux kernelspace is the only arena that deals with contiguous memory; linux userspace deals with "virtually" contiguous memory that is in fact scattered across the physical memory in chunks assigned and kept track of by the kern...
by rickyjames
Sun Mar 25, 2012 12:16 pm
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<r>Further relevant links I have turned up in my research on this topic:<br/> <br/> <URL url="http://www.embedded-bits.co.uk/#more-369">http://www.embedded-bits.co.uk...../#more-369</URL><br/> <br/> <URL url="http://stackoverflow.com/quest.....nux-kernel">http://stackoverflow.com/quest.....nux-kerne...
by rickyjames
Sun Mar 25, 2012 11:35 am
Forum: General discussion
Topic: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot
Replies: 23
Views: 5214

Re: Linux Jedi Needed: Allocating RPi Contiguous Mem At Boot

<r>I have a project I am working on for the RPi and like all people I have weak spots in my knowledge and abilities to cover certain aspects of it.   The help of a linux jedi would be appreciated!<br/> <br/> Specifically, I need to allocate a block of contiguous memory of around 1-2 MB in size on th...
by rickyjames
Wed Mar 07, 2012 6:45 pm
Forum: Other projects
Topic: RPi For Covert Penetration Unit
Replies: 4
Views: 1203

Re: RPi For Covert Penetration Unit

Not to mention, of course, the DARPA "F-Bomb"...

http://www.forbes.com/sites/an.....om-drones/
by rickyjames
Wed Mar 07, 2012 6:44 pm
Forum: Other projects
Topic: RPi For Covert Penetration Unit
Replies: 4
Views: 1203

Re: RPi For Covert Penetration Unit

<r>Saw the following, naturally I thought of RPi, could do more at 1/10 the price...right?<br/> <br/> <URL url="http://arstechnica.com/busines.....etwork.ars">http://arstechnica.com/busines.....etwork.ars</URL><br/> <br/> http://www.globalscaletechnolo.....v-kit.aspx<br/> <br/> <URL url="http://pwni...
by rickyjames
Wed Feb 22, 2012 3:49 am
Forum: Other projects
Topic: GPIO Header Pinout Clarification
Replies: 31
Views: 14049

Re: GPIO Header Pinout Clarification

<t>Could an admin please pin this discussion to the top of the "projects" subforum?  The GPIO pinout documented by Gert a few posts above is the ONLY place in the entire RPi website where the GPIO pins are correctly correlated with the datasheet GPIO numbering system.  This is CRITICAL information f...

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