HATs and other add-ons • Re: 230v input signal HAT
No offence to qualified electricians but most of them won't be good sources of advice on sensing mains with a RPi.Statistics: Posted by drgeoff — Wed Nov 20, 2024 9:03 am
View ArticleC/C++ • Re: Allocate memory for DMA on Raspberry Pi 5
The default memset from gcc uses a data cache clear instruction which won't work on uncached buffers (which a mmap from above top of memory will be). Replace it with a less optimised memset.Ok, thanks...
View ArticleOther projects • Re: Speed limit alert proyect
Try to move the GPS receiver away from the pi, use a USB extension.I do only have a small usb adapter so I cannot do that, does it really matter for it to connect better?The Pi may interfere with the...
View ArticleDeutsch • Re: Raspi 5 Bootprobleme
Servus,habe auch Bootprobleme und gerade an Raspberri geschrieben, weil das Originalnetzteil offensichtlich nicht die richtige Spannung und Stromstärke liefert. Gleich nach dem Hochfahren kommt, die...
View ArticleBeginners • Re: NVME PCIe gen 4 compatible
pi5 is not capable of PCIe gen2. It's certified for gen2 and can do gen3 by chance (but having clock jitter which is out of spec).Why did you change boot order? Recommendation like to others: leave...
View ArticlePython • Re: Automatic application launch at startup
Switch to X11if using bookwormsudo raspi-configThen option 6Statistics: Posted by gordon77 — Thu Nov 21, 2024 8:18 am
View ArticleCamera board • Re: Send direct I2C to HQ camer V4L2
Code: i2cdetect -lwill tell you which I2C bus your camera is connected toCode: sudo i2cdetect -y <# of the I2 bus the camera is connected>will tell you the address of itand now you should have...
View ArticleClik here to view.
Troubleshooting • Re: Gadget mode on raspberry pi zero 2w bookworm 12 64 bit...
Last time I tried using g_ether with an Android device it wasn't recognised. Neither were either of the "real" USB ethernet adaptors I have here.This suggests to me that Android has no support for USB...
View ArticleGeneral • Re: ADC creapage on the RP235X
@gmx, can you reproduce hippy's readings? Granted, we are in the realm of "undefined behaviour" (much like undefined behaviour in C -- those dark, dusty corners) but that ADC pin of his seem to like...
View ArticleTroubleshooting • Re: Pi5 hanging when transfering large files to NAS
My understanding is the Samba bug hunters are more likely to get interested if Samba running on the Debian PC causes the same hang on the Pi.Every bug report is treated the same, no matter where it...
View ArticleTroubleshooting • Angband graphical errors
So i was playing around with roguelike Angband game on the Pi and it was working just fine until we had a power outage.Today when i was trying to start the game again i get what i would describe as...
View ArticleRaspberry Pi Connect • No connect buttons on "devices" screen
I did something rash the last time I used Connect (I do many rash things every day), and now on the Devices scree, the Device name appears on the lefthand side of the screen, but the two connect...
View ArticleRaspberry Pi Connect • Re: No connect buttons on "devices" screen
I did something rash the last time I used Connect (I do many rash things every day), and now on the Devices scree, the Device name appears on the lefthand side of the screen, but the two connect...
View ArticleOfficial Display • Re: Rpi5 + Touch Display 2 + OS Lite, how to rotate?
Thanks for your reply.So what I have to do is:1. Set video in cmdline.txt to:Code: video=DSI-2:720x1280@60,rotate=902. Set dtoverlay in config.txt to:Code:...
View ArticleTroubleshooting • Re: Docker eating up my ram and not freeing it, is it normal?
Wow, someone registered whole domain just to say "don't panic" and explain this nicely like I'm five. That's cool. What a nice place the world is for a minute.But where is...
View ArticleTroubleshooting • Re: BCM2711 change UART clock
Thank you for pointing to clk-bcm2835.c, it does look like the clock is configured here.However I am still not sure how to change it using an overlay.For the Pi5 it seems to be easier since clock...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • pps0/1: which gpio pin?
Hi,I've added two PPS sources to my raspberry pi zero 2w.In /boot/firmware/config.txt I configured:Code: dtoverlay=pps-gpio,gpiopin=18dtoverlay=pps-gpio,gpiopin=24The pulses come in fine:Code: $ cat...
View ArticleCompute Module • CM4: Is it possible to configure Camera 3 to use I2c1
Using a CM4, is it possible to configure a Camera 3 module to use I2C1. I have GPIO pins 2 and 3 mapped to I2C1, and I have the following...
View ArticleClik here to view.
Interfacing (DSI, CSI, I2C, etc.) • Re: pps0/1: which gpio pin?
I guess I figured it out somewhat myself Code: $ cat /sys/class/pps/pps*/name pps@18.-1pps@12.-1Not ideal (because I now need to parse some unspecified string) but it'll do for now.Statistics: Posted...
View ArticleCompute Module • Re: AI Hat+ and GPIO header
Here's the schematic...https://datasheets.raspberrypi.com/m2-h ... matics.pdfJust 5v, 3.3v, gnd and ID pins ?NOPE! That's the schematic of https://www.raspberrypi.com/products/ai-kit/ and not for...
View Article