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by jamesh
Fri Jun 18, 2021 7:09 pm
Forum: Raspberry Pi OS
Topic: Raspberry PI OS 64-bit Release Date
Replies: 62
Views: 35127

Re: Raspberry PI OS 64-bit Release Date

I can't believe the 64-bit version is still not available for General Release. Why? It's a massive job making everything work as well as it does in 32bit, involving new camera stack, new graphics stack, new LCD drivers and the rest. And since 32bit works fine for the vast majority of people, it's n...
by jamesh
Fri Jun 18, 2021 7:05 pm
Forum: General discussion
Topic: MicroSD card failures after 6months or so.
Replies: 4
Views: 138

Re: MicroSD card failures after 6months or so.

We've always been aware of the lifetime of SD cards - it's a well known thing. The trade-off is ease of use, vs limited lifetime. There are lots of instructions around the web on how to reduce SD card accesses in order to improve lifetimes. One way is simply using a larger card, the cards inbuild we...
by jamesh
Fri Jun 18, 2021 4:44 pm
Forum: Troubleshooting
Topic: does rainbow screen flicker hint at a poor power supply?
Replies: 8
Views: 204

Re: does rainbow screen flicker hint at a poor power supply?

The chances of getting a Pi with exactly the same fault as a previous one are incredibly remote, so if this one starts doing the same as the other one, I would suspect something else, especially since washed out colours in not a fault I have heard of before. HDMI cable, the monitor itself would be t...
by jamesh
Fri Jun 18, 2021 4:23 pm
Forum: Official Foundation Display
Topic: How to switch initial brightness?
Replies: 5
Views: 123

Re: How to switch initial brightness?

No, it's controlled from a I2C message to the display board on the screen, via the firmware and some mailboxes.

If you are using KMS (unlikely) then you could mod the driver to start up with 0 brightness.
by jamesh
Fri Jun 18, 2021 4:22 pm
Forum: Troubleshooting
Topic: does rainbow screen flicker hint at a poor power supply?
Replies: 8
Views: 204

Re: does rainbow screen flicker hint at a poor power supply?

I hadn't realised it recovered after the flicker on the rainbow. Probably it's all OK then if everything works after that.
by jamesh
Fri Jun 18, 2021 4:21 pm
Forum: Official Foundation Display
Topic: Glass pulling away from frame
Replies: 3
Views: 106

Re: Glass pulling away from frame

Hi, we would like to get some of these back for examination. Can you email info@raspberrypi.com FAO James Hughes with your details, and someone will get in touch.

Thanks.
by jamesh
Fri Jun 18, 2021 3:33 pm
Forum: Advanced users
Topic: Maximum stable overclocking speed of a Pi 4 or 400
Replies: 22
Views: 955

Re: Maximum stable overclocking speed of a Pi 4 or 400

Has anyone on this forum managed to get 2.4GHz (or higher) with their units and if so, has it been stable under heavy real-world loads? 2.4 GHz on RPi4B and 2.5 GHz on CM4, but with sub-zero temperatures. On the RPi4B 2.4 GHz was stable under heavy load (3+ hours x264 encoding) and the CM4 was able...
by jamesh
Fri Jun 18, 2021 3:32 pm
Forum: Official Foundation Display
Topic: Glass pulling away from frame
Replies: 3
Views: 106

Re: Glass pulling away from frame

I have passed this on.
by jamesh
Fri Jun 18, 2021 2:53 pm
Forum: Official Foundation Display
Topic: How to switch initial brightness?
Replies: 5
Views: 123

Re: How to switch initial brightness?

Not that I can think of.
by jamesh
Fri Jun 18, 2021 2:22 pm
Forum: Networking and servers
Topic: Connect in places without internet
Replies: 3
Views: 94

Re: Connect in places without internet

Mobile network? Satellite internet (e.g. starlink)? LoRA? Wifi?
by jamesh
Fri Jun 18, 2021 1:00 pm
Forum: Troubleshooting
Topic: does rainbow screen flicker hint at a poor power supply?
Replies: 8
Views: 204

Re: does rainbow screen flicker hint at a poor power supply?

I'd be more worried about the HDMI cable.
by jamesh
Fri Jun 18, 2021 9:49 am
Forum: Wanted
Topic: Hiring for consultation and more
Replies: 2
Views: 115

Re: Hiring for consultation and more

We have a number of design partners you may wish to contact one of them.

https://www.raspberrypi.org/for-industr ... -partners/
by jamesh
Fri Jun 18, 2021 9:44 am
Forum: C/C++
Topic: atomic or volatile, that is the question ( Whether 'tis nobler in the mind to mutex them)
Replies: 51
Views: 1169

Re: atomic or volatile, that is the question ( Whether 'tis nobler in the mind to mutex them)

well, I am using multithreading successfully since 10 years and more, all is fine (using volatile + mutexes + thread prios) - I only need to understand atomic which had been suggested, and answers should be suitable for non-professionals, finally the Pi is also for beginners. The answers given by t...
by jamesh
Fri Jun 18, 2021 9:01 am
Forum: C/C++
Topic: atomic or volatile, that is the question ( Whether 'tis nobler in the mind to mutex them)
Replies: 51
Views: 1169

Re: atomic or volatile, that is the question ( Whether 'tis nobler in the mind to mutex them)

I don't understand those technical documents and manuals https://stackoverflow.com/questions/81656/where-do-i-find-the-current-c-or-c-standard-documents - 99.9999% is exaggerated unspecific and verbose talk in technical terms and terminologies overloaded and overwhelmed with unnecessary and ambiguo...
by jamesh
Fri Jun 18, 2021 7:25 am
Forum: General
Topic: Raspberry Pi Pico
Replies: 8
Views: 269

Re: Raspberry Pi Pico

Still do not see much value in it outside education due to RAM and IO limits Good enough reason to do it :lol: Pimoroni should make a motherboard for these, 4x4 array? https://shop.pimoroni.com/products/pga2040 Stackable so they can stack 4 high, 3D Pico bramble, 128 x ARM CPUs. Keeping the serial ...
by jamesh
Thu Jun 17, 2021 3:17 pm
Forum: C/C++
Topic: Geany C: Code works correctly only with debugger
Replies: 22
Views: 744

Re: Geany C: Code works correctly only with debugger

OK. This thread was flagged up in a report, that it had been hijacked and taken way off topic. And I agree. The discussion about volatile etc should be elsewhere. Not only that but the insistence of one poster in people fixing up examples for him because he cannot be bothered to read the provided li...
by jamesh
Thu Jun 17, 2021 3:05 pm
Forum: General discussion
Topic: Why Raspberry pi 4 can't run onboard wifi on window 10
Replies: 4
Views: 185

Re: Why Raspberry pi 4 can't run onboard wifi on window 10

We don't support WIn10 efforts here (as they may be illegal) so will close this thread.
by jamesh
Thu Jun 17, 2021 1:39 pm
Forum: Graphics, sound and multimedia
Topic: Animated GIFs in Kodi
Replies: 3
Views: 214

Re: Animated GIFs in Kodi

I am afraid this would be fantastically low on the jobs sheet as it's such a tiny use case. You should really report it one of the Raspberry Pi bug trackers on github, as it will get lost here.
by jamesh
Thu Jun 17, 2021 1:26 pm
Forum: General discussion
Topic: Raspberry pi 5 new ideas and improve
Replies: 1
Views: 200

Re: Raspberry pi 5 new ideas and improve

Isn't that just an x86 box?



And nope to almost all of those, the Pi5 spec is already set in stone (well, most of it).

And just for future reference, these sorts of threads always devolve in to my feature is better than yours arguments, so are always closed immediately.
by jamesh
Thu Jun 17, 2021 12:59 pm
Forum: Troubleshooting
Topic: 33 Watt Smartphone Charger to Power up my RasPI 3B+. I am concerned !!
Replies: 12
Views: 378

Re: 33 Watt Smartphone Charger to Power up my RasPI 3B+. I am concerned !!

Now that you've mentioned that "low voltage" . I have noticed that it has a banner as shown below. Will it cause any harm to the PI ? I mean it's low power and not over power, how bad can it get ? Screen Shot 2021-06-17 at 18.39.00.png It won't harm the Pi, but power supply issues can man...
by jamesh
Thu Jun 17, 2021 12:55 pm
Forum: General
Topic: How would you add more ADCs to the Raspberry Pi Pico?
Replies: 22
Views: 615

Re: How would you add more ADCs to the Raspberry Pi Pico?

Might be easier/cheaper to add more Picos? Doing it that way would require 5 of them to read 14 knobs and faders! I ordered the 16 channel analogue multiplexer instead. After shipping they're about two bucks each on the breakout board. I'm hoping that with the CPU clocked so fast then it should be ...
by jamesh
Thu Jun 17, 2021 12:54 pm
Forum: General
Topic: How would you add more ADCs to the Raspberry Pi Pico?
Replies: 22
Views: 615

Re: How would you add more ADCs to the Raspberry Pi Pico?

I have not been using PICO ADC for months because of this issue: https://www.raspberrypi.org/forums/viewtopic.php?f=144&t=299904 Several documents related to the PICO ADC are shared here: https://pico-adc.markomo.me/ I assumed that the ADC is not reliable. Maybe I am wrong. I wonder if people a...
by jamesh
Thu Jun 17, 2021 12:53 pm
Forum: Troubleshooting
Topic: Pi 4B: how to flash write protected EEPROM?
Replies: 9
Views: 494

Re: Pi 4B: how to flash write protected EEPROM?

Can the OP email info@raspberrypi.org FAO James Hughes so we can arrange this. Sorry James, what exactly should I send to info@raspberrypi.org? what is 'OP' & 'FAO'? OP = Original Poster FAO = For the Attention Of. Can I ask where you are in the world? It turns out we are having difficulty arra...
by jamesh
Thu Jun 17, 2021 12:50 pm
Forum: General
Topic: Raspberry Pi Pico
Replies: 8
Views: 269

Re: Raspberry Pi Pico

Not in the way i think you are wanting. You could connect them together via I2C or SPI, but that is just two devices connected together acting as two devices. Making them appear as one isn't really a thing.

What is your use case?
by jamesh
Thu Jun 17, 2021 10:42 am
Forum: General discussion
Topic: Install Raspbian OS
Replies: 2
Views: 116

Re: Install Raspbian OS

Full instructions are available here. Use the Imager.

https://www.raspberrypi.org/software/

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