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by danpeirce
Sun Dec 31, 2017 10:56 pm
Forum: Raspbian
Topic: Raspbian Stretch and Original RPi - odd screen
Replies: 7
Views: 705

Re: Raspbian Stretch and Original RPi - odd screen

I've got an original B1 with polyfuses sitting in front of me, so might be able to test if needed. Last time I tried it, it booted fine with the latest image and both my HDMI monitor and my DVI-D one. I was able to ssh into it fine after setting the /boot/ssh file There is a good chance I just mess...
by danpeirce
Sun Dec 31, 2017 10:39 pm
Forum: Raspbian
Topic: Raspbian Stretch and Original RPi - odd screen
Replies: 7
Views: 705

Re: Raspbian Stretch and Original RPi - odd screen

OOC, when in 2012? Was it a "B1", with the extra USB polyfuses, or a later "B2" with only one polyfuse? How much memory? FWIW, October's version of Stretch Full was/is running fine on one of my B2's: http://www.cpmspectrepi.uk/raspberry_pi/MoinMoinExport/RaspbianStretchVesaTriPiTV.html (The USB pol...
by danpeirce
Sat Dec 30, 2017 9:11 am
Forum: Raspbian
Topic: Raspbian Stretch and Original RPi - odd screen
Replies: 7
Views: 705

Re: Raspbian Stretch and Original RPi - odd screen

Raspbian Lite boot has worked without issue. Might try the other again or might wait to get my hands on a RPi3 for that. This is not a fast boot even without the GUI (on an original RPi B).
by danpeirce
Sat Dec 30, 2017 6:36 am
Forum: Raspbian
Topic: Raspbian Stretch and Original RPi - odd screen
Replies: 7
Views: 705

Raspbian Stretch and Original RPi - odd screen

I have loaded a SD card with Raspbian Stretch and attempted to boot the Original RPi I got in 2012. Started attempting to SSH into RPi. It does not seem to be assigned a IP address. I went into my router from a laptop and no new device showed up in the dhcp table I added a TV and keyboard and got a ...
by danpeirce
Mon Dec 18, 2017 7:40 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: cross compile c fro RPi on x86 Debian for PC
Replies: 6
Views: 765

Re: cross compile c fro RPi on x86 Debian for PC

You can, but it's a pain to set-up. Instructions are here: https://www.raspberrypi.org/documentation/linux/kernel/building.md It's only really of value if you're compiling enormous things like the Linux kernel or OpenCV which take hours on a RPi3B. If it is a pain to set up it is not the road I wan...
by danpeirce
Mon Dec 18, 2017 7:27 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: cross compile c fro RPi on x86 Debian for PC
Replies: 6
Views: 765

Re: cross compile c fro RPi on x86 Debian for PC

Why? because the x86 PC is faster? The Pi OS that most people use is Raspbian, which is based on Debian. Therefore the development environment is the much same - except of course that the Pi version already has a GCC configured for arm, all the correct libraries and headers in place, etc etc, so it...
by danpeirce
Sun Dec 17, 2017 11:41 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: cross compile c fro RPi on x86 Debian for PC
Replies: 6
Views: 765

cross compile c fro RPi on x86 Debian for PC

Can one cross compile C for the Raspberry Pi on the x86 PC desktop as is with the current ISO image or would a package need to be installed?
What would be the switches required on the command line to have gcc cross compile rather than compile for x86?
by danpeirce
Thu Dec 14, 2017 4:01 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: June 2017 x86 ISO persistence not working
Replies: 11
Views: 3799

Re: Debian Stretch x86 desktop persistence now working

i have 2017-06-22-rpd-x86-jessie.iso Please can you edit the post title to something like ??? June 2017 x86 ISO persistence not working Persistence only works if you are using a Bootable USB Flash Drive AFAIAA ;) I am using a bootable USB flash drive and persistence does not seem to work. I can boo...
by danpeirce
Fri Dec 08, 2017 10:23 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: June 2017 x86 ISO persistence not working
Replies: 11
Views: 3799

Re: PIXEL desktop persistence not working

i have 2017-06-22-rpd-x86-jessie.iso Please can you edit the post title to something like ??? June 2017 x86 ISO persistence not working Persistence only works if you are using a Bootable USB Flash Drive AFAIAA ;) I am using a bootable USB flash drive and persistence does not seem to work. I can boo...
by danpeirce
Fri Dec 08, 2017 9:55 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Fixing a missing taskbar on the x86 image (obsolete)
Replies: 46
Views: 30349

Re: Fixing a missing taskbar on the x86 image (obsolete)

In my case the problem went the sound section and the CPU section did not seem to make a difference. Problem seemed to resolve after removing the battery section. This occurred on an old very old Aspire one. No such problem on a newer aspire one. Note that I downloaded the image just two days ago. C...
by danpeirce
Sun Jul 17, 2016 7:32 am
Forum: Raspbian
Topic: /etc/inittab no longer present in Raspbian Jessie?
Replies: 34
Views: 76097

Re: /etc/inittab no longer present in Raspbian Jessie?

Thanks for the suggestion, I checked the config.txt file and enable_uart=1 was already in the file, but there is still no /dev/ttyAMA0 file when I boot. I'm, trying to write from a python script to the serial port. On my Pi Zero, the cmdline.txt doesn't refer to ttyAMA0, but serial0 which is linked...
by danpeirce
Sun Dec 13, 2015 6:20 am
Forum: General discussion
Topic: Meet Raspberry Pi Zero: the $5 computer
Replies: 539
Views: 79480

Re: Meet Raspberry Pi Zero: the $5 computer

$5 US or perhaps $10 Canadian sounds like an amazing price (can't see a price on http://canada.newark.com/ but $14 here http://www.bc-robotics.com/shop/raspberry-pi-zero/). So can one move the memory card between different Pi models? I guess I'm thinking it would be easiest to load packages on a Pi ...
by danpeirce
Tue Sep 03, 2013 6:49 am
Forum: General discussion
Topic: Controlling a 7 segment display
Replies: 2
Views: 3740

Re: Controlling a 7 segment display

It would help to have datasheets. I would want one for the display board and one for the driver IC on the board. I searched the part number you gave and keep coming up with the MAX7219 rather than 7218. I am wondering if that is a typo? Datasheet on maxim site at http://www.maximintegrated.com/datas...
by danpeirce
Sat Aug 31, 2013 6:18 pm
Forum: General discussion
Topic: screen for my pi?
Replies: 2
Views: 748

Re: screen for my pi?

This would be more trouble than it is worth. Someone has actually been hacking the interface and this gives you an idea of what it looks like... http://flashingleds.wordpress.com/2010/10/26/intercepting-the-gameboy-lcd/ He was wanting to go the other way and replace the LCD. For you to use the displ...
by danpeirce
Sat Aug 31, 2013 5:39 pm
Forum: General discussion
Topic: NOOB - Touch Screen
Replies: 2
Views: 1125

Re: NOOB - Touch Screen

Since you used the word noob in the title I thought I'd point out that is not really a noob type project. There are trade-offs between time it would take to get it working and the cost. You might want to consider spending a little and getting a display that comes with some documentation and a relati...
by danpeirce
Sun Jun 02, 2013 5:28 pm
Forum: Staffroom, classroom and projects
Topic: If you could share 1 idea with a teacher, what would it be?
Replies: 15
Views: 2527

Re: If you could share 1 idea with a teacher, what would it

joan wrote:I suggest you utilise the gpio. Otherwise the Pi is pretty much just an inexpensive computer.
I see this quite differently. I would emphasize that the Pi is a very small inexpensive computer and not just a faster MCU.
by danpeirce
Sun Jun 02, 2013 4:59 am
Forum: Staffroom, classroom and projects
Topic: new to raspberry pi
Replies: 3
Views: 1017

Re: new to raspberry pi

The Rasperry Pi is a general purpose computer so it can be used in many ways. I played around with one a lot last summer and kept notes. http://members.shaw.ca/danielpeirce/notes/raspberry_pi.html (edited -- update because page moved) Everyone has a different background and different interests so th...
by danpeirce
Sat Feb 02, 2013 4:52 pm
Forum: Teaching and learning resources
Topic: K-12 Python and Math
Replies: 1
Views: 1416

Re: K-12 Python and Math

The exploratory type of math that the school is trying to teach unfortunately can be extremely time consuming and off-putting. The result is that I keep hearing "I hate math". On more than one occasion when one of my kids asked for help with math it occurred to me that we could gain insight into the...
by danpeirce
Sat Feb 02, 2013 12:57 pm
Forum: Teaching and learning resources
Topic: K-12 Python and Math
Replies: 1
Views: 1416

K-12 Python and Math

I started googling Python Math K-12 to see what would come up. It looks like a number of schools have combined Math and programming in python. http://pyvideo.org/video/437/pycon-2011--panel--python-in-schools--teaching-it http://cs.gettysburg.edu/~tneller/resources/k12/index.html http://www.youtube....
by danpeirce
Sun Jan 27, 2013 12:42 am
Forum: Staffroom, classroom and projects
Topic: BASIC - more harmful than useful?
Replies: 899
Views: 119420

Re: BASIC - more harmful than useful?

...it takes far more than just "tally-ho" style enthusiasm. A teacher has to be really comfortable with a subject and be able to improvise with a concept in maybe thirty subtly different forms, or the kids will find him / her out. There's no place to hide, especially when it comes to teaching a sci...
by danpeirce
Sat Jan 26, 2013 10:49 pm
Forum: Staffroom, classroom and projects
Topic: BASIC - more harmful than useful?
Replies: 899
Views: 119420

Re: BASIC - more harmful than useful?

... but we have to be pragmatic; to teach kids, we need teachers, and teachers do not have the time to spend a month off learning Python, or Lisp. A weekend or a week might be manageable. I fear that without full in commitment from teachers this will fail and programming will once again drop out of...
by danpeirce
Sat Jan 26, 2013 9:37 pm
Forum: Staffroom, classroom and projects
Topic: BASIC - more harmful than useful?
Replies: 899
Views: 119420

Re: BASIC - more harmful than useful?

Amazing; except, what does that mean? If teachers can be taught to be programmers in days why is Eben saying universities are not getting competent applicants and that we need people with thousands of hours of programming experience behind them? I do not know why there is a lack of qualified univer...
by danpeirce
Sat Jan 26, 2013 8:20 pm
Forum: Staffroom, classroom and projects
Topic: BASIC - more harmful than useful?
Replies: 899
Views: 119420

Re: BASIC - more harmful than useful?

I have toughtplenty of people that have zero background in programming BBC BASIC in under 3 days. Now if they have zero background in math (like many 5 and 6 year old kids) it will take a couple of weeks to teach. Though I do not think that this would be a problem with 99% of teachers. Amazing; exc...
by danpeirce
Sat Jan 26, 2013 7:35 pm
Forum: Staffroom, classroom and projects
Topic: BASIC - more harmful than useful?
Replies: 899
Views: 119420

Re: BASIC - more harmful than useful?

You disagree with my choice of words. That's OK; I'm not perfect. Do you disagree with my conclusion? It may be different in the UK but I suspect most teachers here have next to zero background in programming. The BBC BASIC manual I looked at is over 400 pages. I don`t think someone is going to lea...

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