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by jamesh
Tue Dec 12, 2017 3:54 pm
Forum: Raspbian
Topic: Mouseclick On The Desktop Brings Up Programs From The Taskbar
Replies: 3
Views: 37

Re: Mouseclick On The Desktop Brings Up Programs From The Taskbar

Is it the same SD card each time? Does a newly flashed SD card show the same issue?
by jamesh
Tue Dec 12, 2017 3:13 pm
Forum: Raspbian
Topic: Mouseclick On The Desktop Brings Up Programs From The Taskbar
Replies: 3
Views: 37

Re: Mouseclick On The Desktop Brings Up Programs From The Taskbar

Is it the same mouse causing the problem each time?
by jamesh
Tue Dec 12, 2017 3:13 pm
Forum: Troubleshooting
Topic: Is my SD card now totally wrecked?
Replies: 5
Views: 104

Re: Is my SD card now totally wrecked?

Could be a fake SD card - i.e. one that says it is of a particular size, but is actually much smaller. Happens a lot with Ebay cards..
by jamesh
Tue Dec 12, 2017 3:10 pm
Forum: Beginners
Topic: Kali linux | apt-get upgrade problem
Replies: 5
Views: 77

Re: Kali linux | apt-get upgrade problem

pcmanbob wrote:
Tue Dec 12, 2017 2:17 pm
DougieLawson wrote:
Mon Dec 11, 2017 8:57 pm
You're much more likely to get the help you need at: https://forums.kali.org/forumdisplay.ph ... chitecture

As Dougie has already said you are more likely to get help on the kali forum as it is not widely supported here.
Not officially support at all - it's not our distro.
by jamesh
Tue Dec 12, 2017 3:09 pm
Forum: Beginners
Topic: QR CODE DECODING ON RASPBERRY PI
Replies: 1
Views: 23

Re: QR CODE DECODING ON RASPBERRY PI

Yes, that will work fine. I've done the reading with the Pi camera, not the LED display bit, but that's also perfectly possible.
by jamesh
Tue Dec 12, 2017 3:07 pm
Forum: General discussion
Topic: Still only one rpi zero per purchase?
Replies: 29
Views: 851

Re: Still only one rpi zero per purchase?

For the hard of reading (because I wrote this above), the official line is one per person.
by jamesh
Tue Dec 12, 2017 9:56 am
Forum: General programming discussion
Topic: Pi beginner
Replies: 4
Views: 74

Re: Pi beginner

I'd forget using Windows development environment- use Linux, much easier. But, to go back to first principles, there are a number of packages already available that may do what you want - specifically designed for museums and presentation systems. PiPresent, Kweb comes to mind. Google will find them...
by jamesh
Mon Dec 11, 2017 9:33 pm
Forum: General discussion
Topic: Still only one rpi zero per purchase?
Replies: 29
Views: 851

Re: Still only one rpi zero per purchase?

Going to close this thread soon. Run its course.
by jamesh
Mon Dec 11, 2017 9:32 pm
Forum: General discussion
Topic: Still only one rpi zero per purchase?
Replies: 29
Views: 851

Re: Still only one rpi zero per purchase?

The issue, as I see it, is you've got the Raspberry Pi foundation saying you can only buy one per person and at the same time, on the forums here, official representatives are encouraging people to buy more than one. Make up your minds. Either enforce this silly rule or pull it out. Right now it fe...
by jamesh
Mon Dec 11, 2017 5:34 pm
Forum: General discussion
Topic: use pi zero w in commercial production
Replies: 38
Views: 4332

Re: use pi zero w in commercial production

What a bizarre situation! Why don't they simply raise the price by say £1 - £2 and churn them out by the thousands? This would give them a decent profit margin and the extra cost would make little difference to the one-off hobbyist type user. Continuity of supply? Simply don't change it, if it does...
by jamesh
Mon Dec 11, 2017 12:56 pm
Forum: General discussion
Topic: Still only one rpi zero per purchase?
Replies: 29
Views: 851

Re: Still only one rpi zero per purchase?

The PiZero is quite a unique device Yup! Sales levels have surprised us. RPi have been very reluctant to publicly state that it is the equivalent of an experiment/promo/loss-leader but in reality, that is what it is. The lack of clarity has not gone down well with some people whereas others think t...
by jamesh
Mon Dec 11, 2017 12:05 pm
Forum: Troubleshooting
Topic: Raspberry Pi builtin WiFi keeps crashing
Replies: 28
Views: 1090

Re: Raspberry Pi builtin WiFi keeps crashing

For those wishing to try the debug firmware, please PM me and I will send it to you, see link for how to use it. https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=196018#p1244026 As for progress from Cypress, we have attracted their attention, and they are asking for more debug results from th...
by jamesh
Mon Dec 11, 2017 9:47 am
Forum: C/C++
Topic: [SOLVED] Writing a codec driver
Replies: 33
Views: 1093

Re: Writing a codec driver

PhilE wrote:
Sun Dec 10, 2017 10:17 pm
In this case the "exception" is a warning detected within an interrupt (rather than a fault exception), triggered by an underrun or overrun (XRUN) within ALSA.
Ah, thanks Phil.
by jamesh
Sun Dec 10, 2017 10:07 pm
Forum: C/C++
Topic: [SOLVED] Writing a codec driver
Replies: 33
Views: 1093

Re: Writing a codec driver

That kernel dump shows an exception - which is usually a bad thing. You should be able to track it down from the stack dump, and perhaps some more logging.
by jamesh
Sun Dec 10, 2017 9:54 pm
Forum: General discussion
Topic: Still only one rpi zero per purchase?
Replies: 29
Views: 851

Re: Still only one rpi zero per purchase?

Hi I'm a bit confused, but why on earth is it only possible to purchase a single Raspberry Pi Zero? I need a few of these for a project I'm working with, and without it, I'll need to get some chinese rubbish instead, which obviously works, but isn't nearly as god. roy Please see the linked threads,...
by jamesh
Sun Dec 10, 2017 5:12 pm
Forum: Beginners
Topic: Best command to shut Rpi down
Replies: 8
Views: 211

Re: Best command to shut Rpi down

I use sudo halt
by jamesh
Sun Dec 10, 2017 5:10 pm
Forum: Raspbian
Topic: Raspbian life cycle
Replies: 83
Views: 5972

Re: Raspbian life cycle

Debian and hence Raspbian comes to us with love for free. To expect their creators to support old versions for years on end would be ungrateful and greedy. But, you see, that's exactly the problem. People are aware that when you get something for free, it is worth about what you pay for it. Now, do...
by jamesh
Sun Dec 10, 2017 4:59 pm
Forum: Beginners
Topic: Screen Rotation
Replies: 8
Views: 5211

Re: Screen Rotation

Al the detail here. https://www.raspberrypi.org/documentation/configuration/config-txt/video.md This page will be updated soon to add some extra display rotate commands which will enable you to independently rotate the HDMI and the LCD, which makes it easier when switching between the two. display_h...
by jamesh
Sat Dec 09, 2017 7:35 pm
Forum: Beginners
Topic: Pi as just a processign device with data output
Replies: 6
Views: 208

Re: Pi as just a processign device with data output

Cool. In which case, use Raspbian, disable boot to desktop (in raspi-config), google for how to start stuff on startup. Also need to auto login, think that is also in raspi-config but not sure. Write a script that monitors a particular program to see if it is running, and reboot if not. Might alread...
by jamesh
Sat Dec 09, 2017 7:29 pm
Forum: Camera board
Topic: Optical Zoom
Replies: 2
Views: 124

Re: Optical Zoom

Not seen a compact one for the PI, they are actually pretty rare things, even in phones. Those you can get I suspect are quite expensive.
by jamesh
Sat Dec 09, 2017 1:28 pm
Forum: Camera board
Topic: h264 and the lag
Replies: 6
Views: 188

Re: h264 and the lag

Can you post a link to these C files? You don't run the .c files directly, they need to be compiled.
by jamesh
Sat Dec 09, 2017 1:24 pm
Forum: Graphics programming
Topic: run the HDMI and TFT screen simultaneously
Replies: 5
Views: 192

Re: run the HDMI and TFT screen simultaneously

From https://community.nxp.com/thread/462751 Victor Linnik Employee Oct 24, 2017 11:59 PM You can use fbset utility to manage framebuffers. Have a great day, Victor This may also help. http://www.tldp.org/HOWTO/pdf/Framebuffer-HOWTO.pdf The issue is that the underlying boot code enables a framebuff...
by jamesh
Sat Dec 09, 2017 1:22 pm
Forum: Beginners
Topic: Pi as just a processign device with data output
Replies: 6
Views: 208

Re: Pi as just a processign device with data output

That's probably OK, getting dataof the USB, but you then need to decode the format, produce your numerical numbers, then send them out. So you need to determine exaclty what sort of load you are going to put the CPU under to see if its possible.

I suspect it is, but you ought to run some numbers.
by jamesh
Sat Dec 09, 2017 11:10 am
Forum: Camera board
Topic: h264 and the lag
Replies: 6
Views: 188

Re: h264 and the lag

running test_launch.c doesn't look right at all.
by jamesh
Sat Dec 09, 2017 11:09 am
Forum: Beginners
Topic: Pi as just a processign device with data output
Replies: 6
Views: 208

Re: Pi as just a processign device with data output

The problem is going to be geting that sort of framerate over the USB.

What resolution are you using and what data format?

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