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by Long_Term_Lurker
Thu Dec 10, 2015 2:33 pm
Forum: Troubleshooting
Topic: Abysmal throughput on only one USB harddrive
Replies: 3
Views: 402

Re: Abysmal throughput on only one USB harddrive

rlucking wrote:I'm not sure why it was affecting the toshiba more than the WDs
Could it be that the Toshiba is shingled?

If you don't have a sync at the end of your test then you're more testing how good the caching is than how fast the drive is.
by Long_Term_Lurker
Thu Nov 26, 2015 2:38 pm
Forum: General discussion
Topic: Meet Raspberry Pi Zero: the $5 computer
Replies: 539
Views: 60327

Re: Meet Raspberry Pi Zero: the $5 computer

It's interesting to note from https://www.raspberrypi.org/magpi/wp-content/uploads/2015/11/cadzero.png that the USB on the go ID pin is taken to a via, not all the tracking layers are shown but that implies that maybe the Pi Zero might not only work as a USB device with a micro B cable and the right...
by Long_Term_Lurker
Fri Jun 26, 2015 2:20 pm
Forum: Troubleshooting
Topic: Using GPIO rs232 to read a serial console
Replies: 16
Views: 1392

Re: Using GPIO rs232 to read a serial console

Are you supplying power to your MAX3232 level shifter? Those things will self power from the serial line or possibly from the TTL serial port and work sporadically in the way you're describing, but need power supplied to their power pins to work properly.
by Long_Term_Lurker
Fri May 15, 2015 3:25 pm
Forum: General discussion
Topic: Resell Raspberry Pi
Replies: 4
Views: 452

Re: Resell Raspberry Pi

Don't forget that, as you will be distributing GPL software, you must include the offer to provide source code.
by Long_Term_Lurker
Wed Feb 18, 2015 8:43 pm
Forum: Troubleshooting
Topic: Dynamode USB Wifi Dongle issues
Replies: 393
Views: 136515

Re: Dynamode USB Wifi Dongle issues

The problem is not patch. They can't include the driver into the main kernel (package) because of MediaTek's license restrictions. Nah, it's not that http://www.mediatek.com/en/downloads/mt7610u-usb/ the license is GPL2 or later at the user's discretion. It's probably more that the code doesn't mee...
by Long_Term_Lurker
Fri Nov 28, 2014 1:10 pm
Forum: General discussion
Topic: License
Replies: 18
Views: 2948

Re: License

GPL doesn't make any difference and it can be used in commercial projects. You just have to give credit and provide info where to get the source code. Can you give an example of "non-redistributable freeware"? Subtle distinction but no, you can't just provide a link to the foundation's github sourc...
by Long_Term_Lurker
Thu Nov 06, 2014 4:41 pm
Forum: Off topic discussion
Topic: more ram?
Replies: 6
Views: 769

Re: more ram?

Well, if it's DDR2 RAM then all you would need to do is. 1. Remove the POP package RAM from the top of the SOC. (good luck with that). 2. Design a POP breakout header board connected to a PCB with a SODIMM socket (the pinout might be documented somewhere but don't bet on it, PCB design for these sor...
by Long_Term_Lurker
Wed Oct 08, 2014 2:33 pm
Forum: Off topic discussion
Topic: fdisk and debian wheezy on PC
Replies: 5
Views: 1049

Re: fdisk and debian wheezy on PC

You appear to have an advanced format drive. Most manufacturers of advanced format drives supply an "alignment tool" of some sort. Apparently gparted can do the same thing. Before fiddling with partition alignment you should create a windows recovery disk as moving the windows boot partition with so...
by Long_Term_Lurker
Thu Oct 02, 2014 2:30 pm
Forum: Troubleshooting
Topic: Dead LAN9512 on raspi2
Replies: 3
Views: 467

Re: Dead LAN9512 on raspi2

The LAN socket in the RPi contains "integrated magnetics".

The usual reason for failure of the LAN9512 is a bad crystal oscillator, a bit of percussive maintenance (a gentle tap with the back of a fingernail to X1 on the bottom of the board) often kicks it back to life.
by Long_Term_Lurker
Fri Jul 25, 2014 1:53 pm
Forum: General discussion
Topic: General Inquiry
Replies: 3
Views: 574

Re: General Inquiry

You could also clone an SD card using Clonezilla with the advantage that it only saves used sectors and compresses the resulting image files. One wrinkle to be aware of is that not all SD cards are created equal, cards with nominally the same capacity can be quite a few sectors different in size (ed...
by Long_Term_Lurker
Thu Jun 19, 2014 11:52 am
Forum: Off topic discussion
Topic: something big on the front page?
Replies: 16
Views: 2073

Re: something big on the front page?

jamesh wrote:Or maybe there are just waiting to announce the Octacore A53 VideoCore5 based Pi with 4GB of RAM for $15*

James


* This doesn't exist. It's a joke rumour. I'm seeing just how far it goes....
I'm waiting to see who complains that it's underpowered or overpriced or doesn't have a VGA output.
by Long_Term_Lurker
Thu Jun 19, 2014 9:15 am
Forum: Off topic discussion
Topic: I'm gonna make me a MC68070 Computer
Replies: 101
Views: 17941

Re: I'm gonna make me a Z80 Computer (maybe not a Z80)

In all seriousness, the ST keyboard is a good choice IIRC it talks 5V TTL level serial. I will have details somewhere with keycodes etc. but it is probably also well documented on the web.
by Long_Term_Lurker
Thu Jun 19, 2014 9:10 am
Forum: Off topic discussion
Topic: I'm gonna make me a MC68070 Computer
Replies: 101
Views: 17941

Re: I'm gonna make me a Z80 Computer (maybe not a Z80)

You butchered an Atari ST? Murderer! :cry:
by Long_Term_Lurker
Fri Jun 13, 2014 10:22 am
Forum: Off topic discussion
Topic: YOU SUCK: the venting thread
Replies: 950
Views: 107502

Re: YOU SUCK: the venting thread

...or should I have said "much more lengthy" ? :shock: I wouldn't know, I suspect "much more lengthy" is considered more correct but it also sounds clumsier and is less "conversational English". But then I'm only an engineer who barely scraped a pass in 'O' level English. :D Maybe it's just me, the...
by Long_Term_Lurker
Fri Jun 13, 2014 9:37 am
Forum: Off topic discussion
Topic: YOU SUCK: the venting thread
Replies: 950
Views: 107502

Re: YOU SUCK: the venting thread

Indeed it does. :D
by Long_Term_Lurker
Fri Jun 13, 2014 9:13 am
Forum: Off topic discussion
Topic: YOU SUCK: the venting thread
Replies: 950
Views: 107502

Re: YOU SUCK: the venting thread

You're = You are Your = Belonging to you They're = They are Their = Belonging to them There = Where it is It's = It is Its = Belonging to it Whether or not Weather = Stuff in the sky Lose = Misplace Loose = In need of tightening To as in "go to" Too as in "too much" Bear = Either carry or a grumpy a...
by Long_Term_Lurker
Thu Jun 12, 2014 12:36 pm
Forum: Troubleshooting
Topic: mistakenly plugged my Raspberry confusing plus-minus
Replies: 19
Views: 1034

Re: mistakenly plugged my Raspberry confusing plus-minus

tell me how to check? I am not aware of the Pi having any reverse polarity protection. . Yes it has. There is a diode which start conducting (in fact shorting! the supply) and then relies on the poly fuse to kick in. Check the schematic. Have I got schematic blindness? All I can see is D17 which is...
by Long_Term_Lurker
Thu May 22, 2014 10:26 am
Forum: Off topic discussion
Topic: I'm gonna make me a MC68070 Computer
Replies: 101
Views: 17941

Re: I'm gonna make me a Z80 Computer

Sorry, that isn't plenty of choice, Farnell have one windowed UV erasable EPROM in a DIL package in stock, that's not one model, that's one chip, a two kilobyte device. Something like this http://uk.farnell.com/amic/a29040c-55f/memory-cmos-4mbit-dip-32/dp/2414325 or this http://cpc.farnell.com/atmel...
by Long_Term_Lurker
Fri May 16, 2014 2:20 pm
Forum: Off topic discussion
Topic: I'm gonna make me a MC68070 Computer
Replies: 101
Views: 17941

Re: I'm gonna make me a Z80 Computer

That's a cool interesting project you're taking on, however, the book is thirty years old and many of those ICs have been out of production for years (or decades), have you considered reproducing the design in the book using current devices? You could duplicate the glue logic (and even things like t...
by Long_Term_Lurker
Thu May 15, 2014 8:56 am
Forum: Troubleshooting
Topic: port forwarding with a router not under my control
Replies: 2
Views: 440

Re: port forwarding with a router not under my control

You could try http://sourceforge.net/projects/upnp-po ... rce=navbar if UPnP is enabled then you can set up port forwarding that way. You'll need a working java virtual machine and if UPnP is disabled or badly implemented then it won't work, but it's worth a try.
by Long_Term_Lurker
Wed May 07, 2014 8:22 am
Forum: General discussion
Topic: Re: Windows on R-Pi
Replies: 100
Views: 10553

Re: Windows on R-Pi

and like I said, windows 8 is going to support arm processors (according to Microsoft) and that means making a cluster pi you can make it happen! 4x = 4 pi's = 2GB of ram, which means 8 is 4gb and THAT means 16 Raspberry Pi's are 8GB of ram, and 16+16 = 32 and that also means 32 raspberry pi's are ...
by Long_Term_Lurker
Wed Apr 30, 2014 3:45 pm
Forum: Off topic discussion
Topic: a couple questions
Replies: 16
Views: 1455

Re: a couple questions

Just a word of warning, one of the nice things about LiPo batteries is their very low impedance, which has the downside that if short circuited they get rather explodey. Likewise, charging them isn't just a case of applying a voltage or current source, a fairly sophisticated charger is required or, ...
by Long_Term_Lurker
Tue Apr 08, 2014 12:19 pm
Forum: General discussion
Topic: A better NoIR camera module?
Replies: 23
Views: 2674

Re: A better NoIR camera module?

Those would all be valid criticisms but for one point. None of them were goals of the design. If you want a NAS go buy a NAS, that isn't what it was designed for. The Pi fulfils its design brief admirably: Provide the cheapest possible platform for kids to be introduced to programming.
by Long_Term_Lurker
Thu Mar 27, 2014 3:59 pm
Forum: General discussion
Topic: Project for LCD screen Display
Replies: 3
Views: 605

Re: Project for LCD screen Display

toxibunny wrote:Not possible, as far as I know. It'd be like trying to chop down a tree with a tumble-dryer...
I'm afraid I have to disagree, if you could throw a tumble-dryer at a tree hard enough it would be chopped down.

It's more like trying to dry your washing with a chainsaw.
by Long_Term_Lurker
Mon Mar 10, 2014 2:21 pm
Forum: General discussion
Topic: cctv interfacing to raspberri pi.
Replies: 27
Views: 3744

Re: cctv interfacing to raspberri pi.

i have easycap DC60 bt for working with linux i dont have driver for the device .. if any one having drivers for it then plz provide me.. Ok, here is a link to the easycap driver: https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/drivers/media/usb/stk1160?h=linux-3.10.y Good...

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