Interfacing (DSI, CSI, I2C, etc.) • Re: BCM chip offset base /dev/gpiomem for...
the whole point of /dev/gpiomem is to not need an offsetyou just mmap it, and you get the gpio peripheralStatistics: Posted by cleverca22 — Mon Mar 04, 2024 4:22 pm
View ArticleGeneral discussion • Re: NVME M.2 card from RPi Foundation
Good morning,Is there a planned release date for RPi5 NVME M.2 card from RPi Foundation ?Regards.probably, but you'll most likely only find out when it happens...Statistics: Posted by DirkS — Mon Mar...
View ArticleGeneral • Re: Pico with Sensors of 5V
Hi, By reading your answer, i get to know that the UART is a way of communication that has two pins receiver and transmitter The sensor has the RX pin to change some value to process the signal, and...
View ArticleTroubleshooting • Re: Hardware PWM not working with Raspberry Pi 5 4GB
Thanks a lot! I'll look into this later.Statistics: Posted by valtsu23 — Mon Mar 04, 2024 4:44 pm
View ArticleBare metal, Assembly language • Need help with assembler OPcodes and gdb
I'm learning assembler programming on my Raspberry Pi 4 running RasPiOS Bookworm, 64bit, GUI.It's not easy to find reliable information.Here's the problem I'm having:Code: .global _start_start: mov...
View ArticleCamera board • Re: Video stream code working on Pi 4 but not Pi 5
I have tried a variety of ways to declare a codec but I keep getting the same error. Is there some syntax I am missing that must be included. Thanks for you help, I have included my code below. def...
View ArticleAdvanced users • Re: How to connect two Raspberry Pi 5 devices together using...
Pi5 does not support PCI endpoint -> not possibleStatistics: Posted by aBUGSworstnightmare — Mon Mar 04, 2024 5:01 pm
View ArticleTroubleshooting • Re: Rotate touchscreen 90 degrees - does not rotate matrix
And how to add touch calibration data in case of wayfire?Does this also mean that touch coordinate transformation matrix shouldn't be used with wayfire as well?Statistics: Posted by...
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Advanced users • Re: A way to turn off the official pi4 fan on shutdown?
I couldn't find the right combination of software settings under bookworm to keep the fan off on shutdown, so I tried the hardware fix, as advised by gordon77; I inserted a 47k resistor between the...
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Ubuntu • Re: No SPI devices in ubuntu 23 on raspberry 5
maybe i am allowed to answer though.i didapt install raspi-config python3-smbus python3-smbus2 spi-tools python3-spidev python3-lgpio python3-rpi-lgpio python3-pip python3-pil python3-numpy swig...
View ArticleAdvanced users • Re: How to check the pi4 official fan's status?
I solved the fan-still-running-after-shutdown issue by inserting a 47K resistor between the blue and black leads. My soldering skills are rubbish, but it works, see here:...
View ArticleBeginners • Re: Need Help Connecting Light Sensor
Terminal 4 is the common terminal of the relay, and terminal 5 is the normally closed (NC) terminal. Since you want to detect when the light level changes, you'll connect terminal 4 to one of the GPIO...
View ArticleSDK • Re: pico_sdk_import.cmake question
When you say "Environment" what are you referring to specifically? PICO_SDK_PATH is in fact defined under System Environment Variables and contains a valid path on my machine.The if branch in the...
View ArticleFrançais • Re: gpio c++
donc j'ai resolu le probleme c'etait dans mon fichier de lecture j'avais pas mis fclose()bref, j'ai un truc bizarre sur un fichier de lecture que j'essai de faire , et il m'affiche bien la temperature...
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Compute Module • Kernel Panic on exec switch_root
I'm using cmprovision to write an image to a CM4 (eMMC).There are two partitions, a boot partition with an initramfs and an "appfs" partition.On boot I would like to encrypt the contents of the...
View ArticleGeneral discussion • Re: Reboot using crontab
I have a Raspberry Pi that runs a Python 3 program every night at 10pm to take a picture of my Solar Panel Meter, from a command in crontab.This works fine but recently after years of running without...
View ArticleTroubleshooting • Re: lens.google.com using 100% GPU constantly
Seemed to work OK for me nlo lag on a Pi5 running Bookworm 64-bit - CPU spiked to 64% then settled down to 36%.Were you watching GPU usage though? CPU seems unaffected.Statistics: Posted by Botspot —...
View ArticleFrançais • Re: Pb, Configurer le réseau en bash...
Pour passer en mode non predictible, raspi-config pass les 2 commandes suivantes:Code: ln -sf /dev/null /etc/systemd/network/99-default.linkln -sf /dev/null...
View ArticleGeneral discussion • Re: Y Cable for OTG (5amp Power not available),...
A Y cable may not make the warning disapear.You get it because the PMIC on the Pi is unable to negotiate a 5v 5A supply with the power source over USB PD. While within the standard it's apparently...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: Custom MIPI CSI camera not detected
Check the kernel logs ("dmesg") for any errors. Check if the dummy_sensor module is loaded with "lsmod". Check if it has been built with "modinfo dummy_csi_sensor".The fact that "v4l2-ctl...
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