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by jamesh
Mon Jun 18, 2018 7:45 pm
Forum: Troubleshooting
Topic: How to measure FPS on picamera v2
Replies: 2
Views: 35

Re: How to measure FPS on picamera v2

If using raspistill, the annotate option can add a frame number. This might be available in the Python library - I don't know.
by jamesh
Mon Jun 18, 2018 7:42 pm
Forum: Troubleshooting
Topic: rsync stops in the middle of transferring files
Replies: 3
Views: 105

Re: rsync stops in the middle of transferring files

Are you using a 3B+ and is it completely up to date? You may need to turn of tcp segmentation - this has proven to make large transfer unreliable. You can get the latest firmware with it turned off automatically using rpi-update.
by jamesh
Mon Jun 18, 2018 7:40 pm
Forum: Troubleshooting
Topic: Raspbian OS unreachable after several hours of use
Replies: 15
Views: 367

Re: Raspbian OS unreachable after several hours of use

Do you have a attached via USB hard drive? Perhaps formatted with NTFS? Starting to sound like another issue that's cropped up.
by jamesh
Mon Jun 18, 2018 7:38 pm
Forum: Compute Module
Topic: CM3 always crashes within minutes under load
Replies: 39
Views: 2969

Re: CM3 always crashes within minutes under load

yes, I meant that people starting from the other ".dts" files were already safe from this bug? As far as I know, it seems the dt-blob-dualcam.dts contains these lines already so I probably should be okay. I also ran stress-ng and the system kept running ok when doing the cpu tests, so... If the lin...
by jamesh
Mon Jun 18, 2018 7:37 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 385
Views: 21556

Re: Raspberry Pi 3 B+ lockups

"Certain circumstances" is the key. We need to find out what they are. This is the main reason it takes so long to find this stuff - narrowing down the specific circumstances that cause the issue. The 3B+ uses a different ethernet chip which has a different driver (smsc95xx vs lan78xx), so really v...
by jamesh
Mon Jun 18, 2018 4:08 pm
Forum: Compute Module
Topic: CM3 always crashes within minutes under load
Replies: 39
Views: 2969

Re: CM3 always crashes within minutes under load

metalmajor wrote:
Mon Jun 18, 2018 2:32 pm
For the other blobs there is no problem, correct? I am using the dt-blob-dualcam.dts file as a basis.
As long as you have the fix from in here https://github.com/raspberrypi/documentation/pull/812 you should be OK.
by jamesh
Mon Jun 18, 2018 4:06 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 385
Views: 21556

Re: Raspberry Pi 3 B+ lockups

I have already tested that sequence overnight and seen no issues, so No, your assumption that this is a problem with every 3B+ appears to be wrong. So there is probably an extra stage of usage or perhaps something about your particular network router that needs to be determined. For example, what i...
by jamesh
Mon Jun 18, 2018 2:19 pm
Forum: Troubleshooting
Topic: rpi3b+ solo mining magicoin problem
Replies: 1
Views: 52

Re: rpi3b+ solo mining magicoin problem

Please keep it to one topic - duplication's simply spread answers around and make them difficult to find.

The link posted in your post doesn't work, so will be difficult to figure out what the problem is.
by jamesh
Mon Jun 18, 2018 2:12 pm
Forum: Beginners
Topic: Binary Blob?
Replies: 6
Views: 217

Re: Binary Blob?

The RPF have full access to the SoC firmware source, so we do all the support in that area. The SoC manufacturer does not work on our firmware, mainly because a lot of the people who know how it works now work for us after Broadcom shut down the VC4 team. There is also firmware for the wireless chip...
by jamesh
Mon Jun 18, 2018 12:35 pm
Forum: Advanced users
Topic: RS232 serial link with Raspberry PI 3
Replies: 6
Views: 145

Re: RS232 serial link with Raspberry PI 3

Hello I have indeed a USB / RS232 adapter ( https://www.digikey.it/product-detail/it/ftdi-future-technology-devices-international-ltd/CHIPI-X10/768-1138-ND/3103022 ), so if I look at this solution, you think that flinching enough to do the exchange of data? Or should there be a python program to do...
by jamesh
Mon Jun 18, 2018 12:28 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 385
Views: 21556

Re: Raspberry Pi 3 B+ lockups

Sadly, I don't have time to dig through pages of posts to find one line of information. Can you give specific instructions on what you do to make this go wrong, and any errors that may be display (e.g. syslogs). Since this does NOT appear to be the tcp segmentation offload issue (although symptoms ...
by jamesh
Mon Jun 18, 2018 12:18 pm
Forum: Raspbian
Topic: Upgrade to kernel 4.16 in Strech
Replies: 3
Views: 92

Re: Upgrade to kernel 4.16 in Strech

As Dougie says, this is more recent than our own published kernel, however, we do have a 4.16 branch in our github repo for the kernel. There is no guarantee that this will work under all circumstances, so you use it at your own risk. https://github.com/raspberrypi/linux/tree/rpi-4.16.y We also have...
by jamesh
Mon Jun 18, 2018 10:54 am
Forum: Advanced users
Topic: RS232 serial link with Raspberry PI 3
Replies: 6
Views: 145

Re: RS232 serial link with Raspberry PI 3

Your easiest option will be to use a USB-to-RS232 converter. Indeed. They are incredibly cheap, and 'just work'. e.g. https://www.ebay.co.uk/itm/USB-to-RS232-Serial-Port-9-Pin-DB9-Cable-Serial-COM-Port-Adapter-Convertor-UK/202316396696?hash=item2f1aff3898:g:84QAAOSwdpxUWdps https://www.ebay.co.uk/i...
by jamesh
Mon Jun 18, 2018 10:18 am
Forum: General discussion
Topic: What to do with this thing?
Replies: 25
Views: 684

Re: What to do with this thing?

Few points that came up whilst reading this thread. Tutorials you find on the web can be notorious outdated, and we have no control over them. If you find a tutorial on our site here that doesn't work, please report it. When you enabled SSH, the desktop will put up a message if you are still using t...
by jamesh
Mon Jun 18, 2018 9:42 am
Forum: General discussion
Topic: 2017 - The Pi's best year yet
Replies: 7
Views: 497

Re: 2017 - The Pi's best year yet

Wow! When Eben looks at these number does he still get overwhelmed, or has he gotten used to the massive success his project has become? I seem to recall that, back in the early days, he thought something like 10,000 Pi computers sold would be a success. Congrats and thank you to everyone at RPF/RP...
by jamesh
Mon Jun 18, 2018 9:40 am
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 385
Views: 21556

Re: Raspberry Pi 3 B+ lockups

Sometimes, bugs are just REALLY difficult to fix. Simply as that. I have a laptop with a Intel Wireless chip in. It took Intel (Yes Intel, with all their thousands of engineers), 18 MONTHS to get that wireless chip driver stable, and tbh, I still don;t think it's particular good.Since the 3B+ was l...
by jamesh
Mon Jun 18, 2018 9:33 am
Forum: Troubleshooting
Topic: No Wireless interfaces found error!
Replies: 19
Views: 436

Re: No Wireless interfaces found error!

Nano is an editor, so you can now fill in the rest of the missing parts of the file, as inficated by the post above yours. Save the file (ctrl-x, then press y).

You can cat the file again to ensure the changes are there, then reboot.
by jamesh
Mon Jun 18, 2018 9:30 am
Forum: Troubleshooting
Topic: Raspbian OS unreachable after several hours of use
Replies: 15
Views: 367

Re: Raspbian OS unreachable after several hours of use

3B or 3B+?

Either way, ensure you have the latest Raspian, and you have updated (sudo apt update/upgrade).

Post any syslog messages (as posted about above) that might give clue to what is happening.
by jamesh
Mon Jun 18, 2018 9:28 am
Forum: Troubleshooting
Topic: Raspberry Pi builtin WiFi keeps crashing
Replies: 69
Views: 5720

Re: Raspberry Pi builtin WiFi keeps crashing

TBH, the best thing to try is a new SD card with the latest Raspbian download. This is will prove whether it's your distro/setup or something else.

It's going to be impossible to set up a test device here that mimics your setup, so replicating the issue on Raspbian is the best bet.
by jamesh
Mon Jun 18, 2018 9:24 am
Forum: General discussion
Topic: Must Haves
Replies: 6
Views: 480

Re: Must Haves

i486 wrote:
Mon Jun 18, 2018 9:20 am
pcmanbob wrote:
Tue Jan 30, 2018 7:42 pm
The integrated WiFi dose not support 5ghz the dongle does.
Not true for Pi 3+
That posted is dated prior to the release of the Pi3B+....
by jamesh
Sun Jun 17, 2018 2:49 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 385
Views: 21556

Re: Raspberry Pi 3 B+ lockups

Odd. The 3b+ on my desktop using standard kernels and firmware runs fine. You either have a dead Pi or there is something about your network or environment it doesn't like. I presume you are up to date with all softwae.? Yes, i am running the latest software. I had 3 RPi's 3B+ all with the same iss...
by jamesh
Sun Jun 17, 2018 7:39 am
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ lockups
Replies: 385
Views: 21556

Re: Raspberry Pi 3 B+ lockups

It sounds very frustrating. When you switched out the power supply, did you also change the USB power cable? using the official Raspberry Pi Power supply... Odd. The 3b+ on my desktop using standard kernels and firmware runs fine. You either have a dead Pi or there is something about your network o...
by jamesh
Sun Jun 17, 2018 7:36 am
Forum: Troubleshooting
Topic: Raspberry Pi builtin WiFi keeps crashing
Replies: 69
Views: 5720

Re: Raspberry Pi builtin WiFi keeps crashing

robjak wrote: >> never has this problem before, but i recently update/upgrade and then added I2C and a DS3231 RTC. >> Wireless breaks right after a read of temperature from the RTC and a write to a usb flash drive and >> then I run a 6 sec iperf and log it to the usb flash. can add a couple of data...
by jamesh
Sun Jun 17, 2018 7:32 am
Forum: C/C++
Topic: Writing data to BCM2835 - SPI
Replies: 24
Views: 684

Re: Writing data to BCM2835 - SPI

I will , reluctantly, reply. ( I need a brake from coding,. otherwise I really do not care any more posting ANYTHING here ). It is obvious, to me, that forum participants are free to criticize my "abrasive style" and I am expected to change to some pleasing BS format. I developed such style after p...
by jamesh
Sun Jun 17, 2018 7:27 am
Forum: Official Foundation Display
Topic: Official Touch Screen and Xorg
Replies: 56
Views: 34302

Re: Official Touch Screen and Xorg

Bit of a logjam of work at the moment. Codes been complete for a while, really must get a beta out.

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