Advanced users • Re: IOMMUs on Raspberry Pi 5 (device tree, quantity, and...
Can the IOMMU mmap addresses in a larger than 4 GB range or is the 4 GB range a hardware limitation?It's actually a (PAGE_SIZE << 20) limitation, so for 16K => 16G. Actually it could be...
View ArticleCompute Module • Re: USB C and USB 3.0 A on a PCB hosting CM5
..There is one last question that how we can get desktop view on the screen through USB C and USB 3.0 A on the PCB hosting CM5 ? Can we use the USB 3.0 A to HDMI adapter similar to the one in...
View ArticleTroubleshooting • Re: Pi 400 not recognizing SD slot
no sweat. i have a pi400 too, but the problem hasn't occurred.but it means i was paying attention (grin)Statistics: Posted by terribleted — Fri Sep 05, 2025 4:44 pm
View ArticleMedia centres • Re: Peppy player
hi, the problem is i can not download it , not write it. The image i used is on a pc i dont have acces to. so i dont have a copy of the image. so i tried to dowload it from your github, but i cant. I...
View ArticleGeneral • Re: Trouble using SDK powman to enter low power
This powman_example supposedly shuts down USB before going to power down. But i agree that would be something good to try, just take it out completely. ThanksStatistics: Posted by jderickson — Fri Sep...
View ArticleMicroPython • controlling 4 28byj48 steppers from a rpi pico 2 w
Hi,I'm hoping someone can help, I want to control the speed of 4 28byj48 motors independently all rotating continuously at different speeds from a pico 2w. I am a novice with MicroPython although I...
View ArticleDebian • Re: Updating to Debian Trixie
Well I did try to change to trixie but it did not go, it would be good to know the secret code uname -aLinux raspberrypi 6.12.34+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.12.34-1+rpt1~bookworm (2025-06-26)...
View ArticleHATs and other add-ons • Re: Stacking HATs: Uputronics GPS and Waveshare...
After a reply from Waveshare I added the battery HAT to the Pi and it works.Pi 4B + Waveshare Li-Po Battery + Uputronics GPSStatistics: Posted by ArnoPi — Fri Sep 05, 2025 7:06 pm
View ArticleGeneral discussion • Re: What product would you like to see?
I know PiOS has some bodge 'scaling' fixed size defaults, but it needs to get like windows and android and just select a scale factor, like 125%, 150% and even 200% so we can read it on high...
View ArticleRaspberry Pi Desktop for PC and Mac • Re: freerdp is not on the menu
Greetings!Love the speed of Raspberry Pi on my old dell inspiron 1525 laptop. Thanks.I installed freeRDP from the Add/Remove Software menu, but I can't seem to find it. It's not on the menu. How can I...
View ArticleGeneral • Re: PT52-Lua The Modern Retro computer
Shipping the board was going to cost as much as the Fruitjam itselfPaying ~$80 is ridiculous. I am not even convinced the Fruit Jam is worth $40 when you can get a Pi 5 2GB for $50, a Pi Zero 2W for...
View ArticlePython • Unable to install pyvisa-py
Hello to all:I have a still working Raspberry Pi Model B Rev 1, running Raspbian GNU/Linux 12 (bookworm), Kernel: Linux 6.12.34+rpt-rpi-v6My goal is control my DSO using the...
View ArticlePython • Re: Unable to install pyvisa-py
You need to have a Python Virtual Environment active in order to install software. See https://docs.python.org/3/library/venv.html and https://realpython.com/python-virtual-e ... -a-primer/Statistics:...
View ArticleBeginners • Re: Jumpy EC11 Rotary Encoder on Raspberry Pi
The module already has pull-ups, and debouncing capacitors. How have you connected it to your Pi? Please show a wiring diagram.Statistics: Posted by ame — Sat Sep 06, 2025 6:53 pm
View ArticleGeneral • Pico 2 w not working.
Whenever I try to plug my pico 2 w into my computer, it does not load. I have tried multiple cables, 2 devices, and have been holding down the BOOTSEL button.Statistics: Posted by Alt-F4 — Sat Sep 06,...
View ArticleTroubleshooting • Re: raspberry pi 4 wont boot when USB to SATA enclosure is...
EEPROM version is at least updated when you do in-place upgrade from RPiOS64 Bookworm to Trixie. So both my RPI4 have version Thu May 8 03:21:35 PM UTC 2025 (1746717695)On my 'TV' Pi4, I set 0xf241 as...
View ArticleCompute Module • Re: JTAG debug on CM4
Debugprobe does not support JTAG as a transport (which is a missing feature) - see https://github.com/raspberrypi/debugprobe/issues/44There's not really any reason to spend lots of money on a fancy...
View ArticleGeneral • Re: Reading gpio returns incorrect value
I noticed something strange. If I keep read the value of gpio15 immediately after switchinggpio2 from low to high, gpio15 reports low. However if I keep reading gpio15 continuouslysay like for 20...
View ArticleBeginners • Re: How to revert changes made by rpi-update?
I do not know where that message comes from. I always completely purge every installation/trace of that 2712 kernel. That is what you could do as well. And cleanup that old bullseye stuff. And...
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Off topic discussion • Re: A bit of Raspberry with 144C/288T
Back from family weekend, I will respond to the mona-lisa100k.tsp related questions+comments later....The code assumes that the vector is the longer diagonal.It determines all possible integer...
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