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by karlkiste
Wed Nov 27, 2019 4:44 pm
Forum: Troubleshooting
Topic: QEMU emulating i386 machine in RPi
Replies: 9
Views: 232

Re: QEMU emulating i386 machine in RPi

Update: It's at least partly due tu the packaged version of QEMU, which is over a year old. Current QEMU (4.2.0-rc2) built from source runs lubuntu 19.10_x64

Surprise: It's slow :-)
by karlkiste
Sun Nov 24, 2019 6:19 pm
Forum: Troubleshooting
Topic: QEMU emulating i386 machine in RPi
Replies: 9
Views: 232

Re: QEMU emulating i386 machine in RPi

you don't need qemu-system to run x86 linux kernel, for your case qemu userspace emulation should be good enough Thanks for the tip! I had tried it that way first, but the program comes as an installer script which will not run right away. So, if I had to install it on some other machine to pull ov...
by karlkiste
Sun Nov 24, 2019 1:50 pm
Forum: Troubleshooting
Topic: QEMU emulating i386 machine in RPi
Replies: 9
Views: 232

Re: QEMU emulating i386 machine in RPi

So the ultimate goal is: ... Well, yes, but that would be another topic. Here my question is: Why does a well-tested emulator not run a well-tested CD image? Bug or user error? https://www.raspberrypi.org/forums/viewtopic.php?f=41&t=226376 Thanks for the interesting link, bit to much text for now, ...
by karlkiste
Sun Nov 24, 2019 12:13 pm
Forum: Troubleshooting
Topic: QEMU emulating i386 machine in RPi
Replies: 9
Views: 232

Re: QEMU emulating i386 machine in RPi

QEMU is such a commonly used program that I did not even think of it being a problem. Well yes, it should have been fun... The thing I did want to find out in first place was, if I'm running i386 linux in QEMU, can I use MPLABX from there to access a PICKIT4? If that is of any help to the original q...
by karlkiste
Sun Nov 24, 2019 11:32 am
Forum: Troubleshooting
Topic: QEMU emulating i386 machine in RPi
Replies: 9
Views: 232

QEMU emulating i386 machine in RPi

Hi! More or less for fun I've tried to run lubuntu-i386 on my Pi4/4GB. I was surprised that it didn't. I've tried a lot of different images (only lubuntu though), lots of modes, nothing. (well, ok, Memtest86 does run, but that's no kernel...) The client system crashes, even if I only ask to verify t...
by karlkiste
Tue Jan 24, 2017 12:38 pm
Forum: Raspbian
Topic: STICKY: Jessie (now defunct and replaced with Stretch) Q&A
Replies: 396
Views: 213921

Re: Jessie Q&A

procount wrote: Already discussed.
Thanks, must have looked over that one :-)
by karlkiste
Tue Jan 24, 2017 7:25 am
Forum: Raspbian
Topic: STICKY: Jessie (now defunct and replaced with Stretch) Q&A
Replies: 396
Views: 213921

Re: Jessie Q&A

Hiya! There's a new raspbian image out since 2017-01-11, but the release notes have not been updated. When CM3 was announced a few days later I thought, ah, that new image has support for CM3 and the release notes were kept back not to spoil the real announcement. Isn't it time now to release the no...
by karlkiste
Thu Jun 23, 2016 6:32 am
Forum: Camera board
Topic: Raspistill preview with 16:9 ratio on PAL composite display
Replies: 11
Views: 5872

Re: Raspistill preview with 16:9 ratio on PAL composite disp

First of all: hardcoding your two lines works, my problem is therefore solved. Moving on to the learning (or practise) part: In fact I'm no real newbie to programming (having started on a ZX81), Ah the 16kB wobble-pack! Mine has the 16kB extension built-in :-) Any mods to the raspicam apps have to m...
by karlkiste
Wed Jun 22, 2016 1:16 pm
Forum: Camera board
Topic: Raspistill preview with 16:9 ratio on PAL composite display
Replies: 11
Views: 5872

Re: Raspistill preview with 16:9 ratio on PAL composite disp

You're too kind! In fact I'm no real newbie to programming (having started on a ZX81), but I'm quite uncomfortable with everything that starts with "C". First half of your excellent advice is done already. Eventually I might dig me through so to have it imagemagick-like, that an appended "!" to the ...
by karlkiste
Wed Jun 22, 2016 11:56 am
Forum: Camera board
Topic: Raspistill preview with 16:9 ratio on PAL composite display
Replies: 11
Views: 5872

Re: Raspistill preview with 16:9 ratio on PAL composite disp

Thank you for the quick reply!

I read it like anamorphic preview can be done (with reasonable effort) for raspivid, but not for raspistill. Probably I'll set the display to pillarboxed 4:3 for now, maybe I'll try to fiddle with sources one day...
by karlkiste
Wed Jun 22, 2016 11:17 am
Forum: Camera board
Topic: Raspistill preview with 16:9 ratio on PAL composite display
Replies: 11
Views: 5872

Re: Raspistill preview with 16:9 ratio on PAL composite disp

Hmpf... The mentioned line does fix a bit of a preview problem, but not for all cases. I'd like to also save full-sensor jpegs, for which I'd need a pillarboxed preview. This seems not to be possible with current raspistill.

Greets,
Kiste
by karlkiste
Wed Jun 22, 2016 10:37 am
Forum: Camera board
Topic: Raspistill preview with 16:9 ratio on PAL composite display
Replies: 11
Views: 5872

Re: Raspistill preview with 16:9 ratio on PAL composite disp

Thanks! I was not aware of the -roi switch. sudo raspistill -vf -w 1296 -h 1944 -o out.jpg -fp -p 0,0,720,576 -v -vf -roi '0,0.125,0.99,0.75' && sudo fbi -T 1 out.jpg Good to have a forum archive :-) I wasn't aware of the -roi switch to release the aspect ratio lock. But now I'm trying to do the sa...
by karlkiste
Sat Feb 13, 2016 2:25 pm
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

Massi wrote:may i know what's the weight of a pi0 dispatched from pihut or pimoroni?
43.6 grams from pimoroni
Massi wrote:is it a letter or a small parcel?
small packet by air mail

Greets,
Kiste
by karlkiste
Fri Jan 29, 2016 10:29 am
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

Massi wrote: i don't think a zero can fit a 0.5cm letter, am i wrong?
You're right. The Zero is described as being 0.5cm thick. It would fit if you stuck the stamp on the Zero without any packaging... But I doubt you would have much fun with it when it arrives ;-)
by karlkiste
Fri Jan 29, 2016 9:43 am
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

both RS and Farnell manufacture RPi's [A+ B+ B2] on license A bit off topic... But I thought it was "Raspberry Pi (Trading) Ltd." who has the hardware manufactured? {RS/element14} they will compete with each other... they both have different models and costs in the final distribution chain That's w...
by karlkiste
Fri Jan 29, 2016 8:30 am
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

So it seems Element14 is trickling Zero's in its distribution channel. Right after the Zero was announced for the first time, element14 had it listed and accepted orders. A day after I had ordered one, I got an email that the order was cancelled and the Zero had disappeared from the list. Maybe the...
by karlkiste
Fri Jan 29, 2016 5:25 am
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

Conrad electronic, a major electronics retailer in europe, also stopped accepting pre-orders.
by karlkiste
Wed Jan 27, 2016 5:27 pm
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

If I check prices for the Pi2B at the german sites I find: farnell 32,87 € RS 29,58 € Newark (US branch of Farnell): $35.00 Allied (US branch of RS): $35.00 I would suggest that the differences you are seeing are related to currency exchange rates. Strange thing is, in germany the boards were a bit...
by karlkiste
Wed Jan 27, 2016 3:39 pm
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

Prior to the Pi0, Pis were (and are) manufactured under a license granted to RS and Farnell. Evidence is that the license requires them to sell Pis at the price set by the RPF. If I check prices for the Pi2B at the german sites I find: farnell 32,87 € RS 29,58 € Why does the RPF set two different p...
by karlkiste
Wed Jan 27, 2016 1:15 pm
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

Thanks for pointing me to that thread! The mentioned "foreseeable" ends in my opinion when stock lasts from one production batch to another. Then the "one piece per customer" limit will be lifted, and distributors can start selling packs of 10 or 50 or whatever. I keep my fingers crossed for this to...
by karlkiste
Wed Jan 27, 2016 11:28 am
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

I hadn't realised that Swag store works as just a storefront for other vendors - considering also I purchased it from Swag store because it was cheaper than Pimoroni. There's a footnote at the Swag store website:"Fulfillment provided by Pimoroni Ltd" But, the indeed indicated cheaper price (GBP4,00...
by karlkiste
Wed Jan 27, 2016 11:15 am
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

required to to sell at RRP ( too little profit) 1) isn't true - element14 and RS don't call the same price. It does not differ a lot, but that's probably a result of competition, not manufacturer regulations. ..for Pi Zero it seems to be. So that might be the problem: The distributors can't sell e....
by karlkiste
Wed Jan 27, 2016 10:54 am
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

For distributors, don't forget the magPi subscription, which still starts at issue #40 with a Pi Zero and leads and is worldwide. https://www.raspberrypi.org/magpi/subscribe/ Thanks for the hint, but I usually try to sell products and therefore I don't start working with anything of unclear supply....
by karlkiste
Wed Jan 27, 2016 9:51 am
Forum: General discussion
Topic: Zeros Now Available
Replies: 71
Views: 9804

Re: Zeros Now Available

By the way: On the product page https://www.raspberrypi.org/products/pi-zero/ we're told to buy zeroes at the distributors. I usually bought pis at the distributors. But they all removed them completely from their lists, no backlog or anything. On a farnell community page you can read that the zero ...
by karlkiste
Mon Dec 28, 2015 5:25 pm
Forum: Official Foundation Display
Topic: lcd power consumption
Replies: 6
Views: 7616

Re: lcd power consumption

The display says Watt, not VA. According to the manual this is the 'real power'.Nico Yes, as it can also display power factor it really should be able to display real power. It's just, your numbers would resemble what I had on my display in VA... Maybe one day I'll measure on the DC side using a ca...

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