General • Re: PSRAM with RP2350B
I wondered why my data rates was so low (2.41 MB/s cached and 5.70 MB/s uncached), this should be the reason.Do you have some examples of configuration to enable quad spi and better timings/rates?I...
View ArticleTroubleshooting • Raspberry Pi 4B (8GB) not booting after reconnecting power...
Hi everyone – and Raspberry Pi team,I’m having trouble booting my Raspberry Pi 4 Model B (8GB). It used to work just fine, but after reconnecting the power adapter, it completely stopped...
View ArticleOff topic discussion • Re: Trixie to make 64 bit time_t for everything
Doesn't the hardware on the Raspberry Pi 0–2 have some kind of issue with dates past 2038? I think you're thinking of exactly the problem addressed in Trixie and discussed in that article. 64-bit...
View ArticleCompute Module • Re: RPI-CM5 MIPI interface and GPIO's conflict
Hi, I have configured UART1(GPIO0 and GPIO1)- using sudo pinctrl set 0 a2 and sudo pinctrl 1 a2 and enable the UART1 in config.txt- able to send and receive data form PC terminal,but when I configured...
View ArticleMicroPython • Re: Micropython editor with Picocalc
You are likely better to ask on the PicoCalc forum at https://forum.clockworkpi.com/Statistics: Posted by DS256 — Mon Jul 28, 2025 9:49 am
View ArticleOther projects • Pygame 2 + bookworm + SPI display
Hi there I have a Raspberry Pi 5 which has been running Bookworm I have a pygame little script that displays a clock but ever since I've upgraded to Bookworm I can't get it to display on the 3.5 inch...
View ArticleFrançais • Re: Détection IA dans les docs Raspberry Pi : utile ou gadget ?
"Ça devient alors du domaine du second ordre. Quelle est la profondeur de l'apprentissage lorsque la personne ne FAIT PAS pas elle-même ?" Il faut savoir tracer une limite: par exemple sii led...
View ArticleSDK • Pre-main and Post-main functions
GCC 12.2.0 supports pre-main and post-main functions which work for native Pi builds -Code: #include <stdio.h>void __attribute__ ((constructor)) pre_main (void) { printf("pre_main\n"); }void...
View ArticleNetworking and servers • Re: Can’t access rpi5 bookworm hotspot
Not sure that link is correct.If we use nmtui to look at the "Astro" hotspot, we can see it does have the correct password and Security.No need to do any nmcli commands.Statistics: Posted by neilgl —...
View ArticleTroubleshooting • Re: Raspberry Pi 4B (8GB) not booting after reconnecting...
Hi everyone – and Raspberry Pi team,I’m having trouble booting my Raspberry Pi 4 Model B (8GB). It used to work just fine, but after reconnecting the power adapter, it completely stopped...
View ArticleTroubleshooting • Re: Cgroups memory not working on RPI5 & Bookworm
I found a few links that might be of interest....viewtopic.php?t=203128viewtopic.php?t=365198https://github.com/raspberrypi/linux/issues/5933Statistics: Posted by kip_the_elder — Tue Jul 29, 2025 6:11...
View ArticleOther • Re: i2c module not loading and freezing bus
We have custom board that takes either a raspberry pi CM3, CM3+ or CM4.CM3 and CM4 are completely different shapes - how does this work?Statistics: Posted by PhilE — Tue Jul 29, 2025 6:23 am
View ArticleRaspberry Pi Connect • Re: Changed mouse pointer size. Screen sharing stopped...
Thank you @neilgl @jamesh for replying. The Pi is completely headless but I see that using a dummy HDMI could be a workaround until the fix is in place.Statistics: Posted by theeggmaster — Tue Jul 29,...
View ArticleAutomation, sensing and robotics • Re: control the speed of 2 wires (5v, gnd)...
Probably cheaper to get a new fan. Preferably one that plugs into the fan connector and you gain all the control that provides.Certainly less hassle.Statistics: Posted by bensimmo — Tue Jul 29, 2025...
View ArticleTroubleshooting • Re: USB ports on Raspberry Pi 4b stop functioning suddenly
All the USB ports stop functioning suddenly after some time. RPi doesn’t respond to any mouse or keyboard inputs or any other USB device. Any USB device connected after the error has occurred is not...
View ArticleOther • Re: U-boot for Rasp PI 5
have you tried rpi 4 defconfig ?Statistics: Posted by wcl55 — Tue Jul 29, 2025 8:19 am
View ArticleSDK • Re: Bewildered by SPI and 74HC595 used to drive 8 LED
AARGH! It was an ID 10 T(1.) error!Thank the gods I use a 10K pullup. I'd counted wrong on the pins and had tied SRCLR_PIN to (pin 13 GND) instead of pin 14 GP10 (it's active low, so I was continually...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: Multiple MCP2517FD CAN Controller
Thanks for your answers !I've followed your recommendation : I've used only overlay available on RPi5. So, It's now working with the 3CS on SPI1 and 2CS on SPI0.Then, I'm trying to create an overlay...
View ArticleClik here to view.
Advanced users • Re: Raspi 5 firmware feature? autoboot.txt fallback?
Thanks. Good to hear that this feature is helpful.Yes, recursive autoboot.txt would give everyone a headache let's not do that Statistics: Posted by timg236 — Tue Jul 29, 2025 8:43 am
View ArticleGeneral • Re: Custom Bootloader Jump to Application Issues on RP2040 and RP2350
I have tested a few things but still can't get any further"enable_interrupts()" as first instruction in main() triggers the SIGTRAP signal. The debugger stops at decl_isr_bkpt isr_hardfault....
View Article