Go to advanced search

by plugwash
Tue May 01, 2012 12:58 pm
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

<t>Bluemerlin said: <br/> <br/> Is it the tool chain not seeing the correct emulated processor or that the package does not treat what it finds correctly.<br/> gcc (when invoked normally) does not and must not look at the system it is running on. If it did we couldn't compile our packages on armv7 b...
by plugwash
Tue May 01, 2012 11:53 am
Forum: Media centres
Topic: Open Transport Tycoon?
Replies: 3
Views: 2744

Re: Open Transport Tycoon?

Running a couple of trains doesn't really prove much. The real question is how does it handle a large network with the cargodist patches .
by plugwash
Tue May 01, 2012 10:59 am
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

<t>Bluemerlin said:<br/> <br/> <br/> Ummmmm it built fine first time with no errors ????<br/> <br/> <br/> Sorry I neglected to say this but it's important that you do an "arch only" build (dpkg-buildpackage -B), Due to a recent change in dpkg a lot of packages are failing when doing an "arch only" b...
by plugwash
Tue May 01, 2012 10:54 am
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

<t>The gcc defaults are currently set to plain armv6 (with vfp and hardfloat).<br/> <br/> Doing some googling it seems that arm architectures are even more of a mess than I thought and armv6k was an extension introduced somewhere in the middle of the arm11 line (so some arm11 cores have it others do...
by plugwash
Mon Apr 30, 2012 9:43 pm
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

<r>Bluemerlin said: <br/> <br/> <br/> Ok, it's downloaded.<br/> <br/> Any specific task you would like me to do with it once it's installed?<br/> <br/> <br/> <URL url="http://paste.debian.net/166750/">http://paste.debian.net/166750/</URL><br/> <br/> There is a list of packages that our autobuilders ...
by plugwash
Mon Apr 30, 2012 9:19 pm
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

mpthompson said:


Good luck and let me know if you found this useful.  Now, what else was on my todo list?


Making edos-builddebcheck ignore build-depends-indep
by plugwash
Mon Apr 30, 2012 9:00 pm
Forum: General discussion
Topic: How to get multiple UARTS?
Replies: 13
Views: 24500

Re: How to get multiple UARTS?

<r>jbeale said: <br/> <br/> <br/> I guess this is one example: "FTDI USB-COM232-PLUS4"<br/> <br/> Looking at the price reminds me what a good deal the RasPi is!<br/> <br/> <URL url="http://parts.digikey.com/1/par.....plus4.html">http://parts.digikey.com/1/par.....plus4.html</URL><br/> <br/> <br/> We...
by plugwash
Mon Apr 30, 2012 7:18 pm
Forum: General discussion
Topic: How to get multiple UARTS?
Replies: 13
Views: 24500

Re: How to get multiple UARTS?

Note that FTDI make multiport USB-serial chips so you can get up to four uarts off one USB port. I think you are also less likely to have problems with ID retention with one multiport chip than with serveral seperate chips on a usb hub.
by plugwash
Mon Apr 30, 2012 12:39 pm
Forum: General discussion
Topic: Raspberry PI ARM Clone
Replies: 66
Views: 20909

Re: Raspberry PI ARM Clone

<t>casibbald said:<br/> <br/> <br/> We have been in discussions with a PCB designer and expect we can produce this with a retail price of under US$100.<br/> <br/> <br/> Three questions to ask your PCB designer<br/> <br/> Do you actually have experiance with design at the frequencies and complexity l...
by plugwash
Mon Apr 30, 2012 11:56 am
Forum: Beginners
Topic: Multiple boot images on one SD card?
Replies: 18
Views: 13223

Re: Multiple boot images on one SD card?

<t>Some settings which you will likely want to change between images (e.g. the memory map) will require a reboot to clear.<br/> <br/> If I was doing a menu system for the Pi I think i'd have the SD card set up to boot into the menu system most of them time. When you select an entry from the menu it ...
by plugwash
Mon Apr 30, 2012 11:46 am
Forum: General discussion
Topic: Raspberry Pi power consumption
Replies: 6
Views: 10457

Re: Raspberry Pi power consumption

With power efficiency and the Pi the PSU is key. A shitty PSU could easilly draw more power at idle than the Pi draws when running.
by plugwash
Mon Apr 30, 2012 11:11 am
Forum: General discussion
Topic: Does Raspberry support MultiThreading?
Replies: 17
Views: 42839

Re: Does Raspberry support MultiThreading?

<t>JamesH said: <br/> <br/> <br/> You do need specific CPU instructions to get proper multitasking to work (test and set for example?),<br/> <br/> <br/> You don't "need" atomic instructions, they just help you do things more efficiently and/or securely. Without them you pretty much have to disable i...
by plugwash
Mon Apr 30, 2012 10:45 am
Forum: General discussion
Topic: Windows on Pi?
Replies: 154
Views: 35512

Re: Windows on Pi?

<t>mahjongg said: <br/> <br/> In practice this means that the PI can emulate an older x86 CPU (say a i486) running at the equivalent of say 66MHz and has say 180 MB of RAM to work with. This makes it possible, with the right software to run windows 3.1, and perhaps windows 95, but nothing more advan...
by plugwash
Sat Apr 28, 2012 11:18 am
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

<t>IMO it's not so much about raw numbers (though they are certainly good to have) as it is about getting the RIGHT packages built, in particular at the moment i'm still having to resort to using the "dirty" chroot far more often than i'd like.<br/> <br/> The biggest issue i'm running into is docume...
by plugwash
Fri Apr 27, 2012 2:37 pm
Forum: General discussion
Topic: A or B
Replies: 5
Views: 1982

Re: A or B

<r>If the model A was available i'd be very tempted to get one and pair it up with <URL url="http://cpc.farnell.com/unbrand.....b+ethernet">http://cpc.farnell.com/unbrand.....b+ethernet</URL> . I've had less issues with the ASIX chipset in that device than with the SMSC chipset used on the Pi and 2 ...
by plugwash
Fri Apr 27, 2012 2:21 pm
Forum: General discussion
Topic: There's been so many discussions of so many different methods, it's hard to keep track. So, one big question:
Replies: 35
Views: 9083

Re: There's been so many discussions of so many different methods, it's hard to keep track. So, one big question:

<t>lewmur said:<br/> <br/> <br/> Not in a way that would be useful.  It would require an x86 emulator or a virtual session Host package like VM or VirtualBox.  Either of those solutions would require more RAM than the Pi has<br/> <br/> <br/> It should be possible to run winXP under qemu. If we assum...
by plugwash
Fri Apr 27, 2012 1:08 pm
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

If mpthompson doesn't want it and I haven't managed to get a Pi by other means by that time i'll take it.
by plugwash
Thu Apr 26, 2012 9:05 pm
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

I believe dom has already built hardfloat versions of the gl drivers etc. I dunno if anyone has tested if they actually work or not though.
by plugwash
Thu Apr 26, 2012 7:47 pm
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

<r>mdewey said: <br/> <br/>  I use the open source statistical system R<br/> Be aware that debian has recently been having problems building many R packages for arm. If you are interested in R on arm going forward then it might be an idea to get involved.<br/> <br/> <URL url="http://lists.debian.org...
by plugwash
Tue Apr 24, 2012 9:34 am
Forum: Other projects
Topic: Ubuntu on Raspberry Pi
Replies: 81
Views: 184847

Re: Ubuntu on Raspberry Pi

<t>JamesH said: <br/> <br/> <br/> Well, you could simply buy 10-15 Pi's and set up a farm to do all the building/testing.<br/> <br/> <br/> Leaving aside the fact it's likely to be months at least before one customer can "simply buy 10-15 Pis" I wouldn't use Pis as the build machines for several reas...
by plugwash
Tue Apr 24, 2012 8:33 am
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

<t>mpthompson said:<br/> <br/> <br/> Unfortunately, the system doesn't currently seem to really have a way of cherry picking packages to be recompiled.<br/> <br/> <br/> I know there is a way to set a build priority in the versions of wanna-build that are currently running the debian autobuilders. I ...
by plugwash
Sat Apr 21, 2012 10:22 pm
Forum: General discussion
Topic: rpi-update - Firmware updater for Raspberry Pi
Replies: 39
Views: 19940

Re: rpi-update - Firmware updater for Raspberry Pi

Afaict the only hardfloat port for the Pi is mpthompsons port of debian so it should be safe to use dpkg --print-architecture if dpkg exists and assume softfp if dpkg doesn't exist.
by plugwash
Sat Apr 21, 2012 8:47 pm
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

<t>I think your "packages are built before dependencies are ready" issue may be to do with the old version of wanna-build you are running. My understanding is that current versions put the packages first into a "bd-uninstallable" state and only move them to "needs-build" when their dependencies are ...
by plugwash
Sat Apr 21, 2012 5:36 pm
Forum: Raspberry Pi OS
Topic: HISTORY: The start of raspbian (Debian Hard Float (armhf) for RPi) now called Raspberry PI OS
Replies: 613
Views: 406883

Re: Debian Hard Float (armhf) for RPi

<t><br/> The improvement might come from the fact that these packages are targeting armv6.<br/> <br/> <br/> AIUI there are some advantages to ARMv6 for integer code but they are not all that significant.<br/> <br/> The "real" time had reduced significantly the "user" time (that is the actual CPU tim...

Go to advanced search