Device Tree • Re: gpio-keys, EV_ABS events do fire value !=0 when pressed but...
Many thanks, that was to the point.I was able to apply your suggested change locally and now I get 0 value when an axis button is released, seems the gpio-keys devicetree documentation states...
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General • Re: How many GPIO interrupts?
Yes, it's a shared interrupt.This can also be used to avoid/filter deadly interrupt racing from external pins. If needed, for more complex conditions, one can use PIOs interrupts as well (2 ints x 2...
View ArticleGeneral discussion • Re: Learning Linux
Thanks for your reply neilgl!I'll definitely try out the LITE version. I Raspberry Pi OS designed more for someone who wants to learn how Linux works? or more for the average user who wants an already...
View ArticleCamera board • High CPU Usage with libcamera and GS Camera on Raspberry Pi 5
Hello everyone,I’m currently working on modernizing several projects that I had running on CM3 and CM3+ using MMAL and directly interfacing with raspivid. These projects involved a Pi Camera V2,...
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Advanced users • Re: libgpiod version [SOLVED]
You should check your facts before posting; gpiozero (at least when I last used it a few weeks ago) does not use libgpiod.People still continue to conflate libgpiod userspace library and the kernel...
View ArticleGeneral • Re: RP2040 With No Flash
If you aren't using flash to boot at all, you can arrange for nCS to be pulled low and the bootrom will go into USB boot mode without touching the other 5 pins at all (and nCS is then available to you...
View ArticleGeneral • Re: Pi4 communication with multiple Pico's
I bought a RS482 serial HAT for my Pi4 and two 2 channel RS485 modules for the picos to test and prototype. I've got them talking to each other using UART(Serial on Pi and machine on the Picos). But I...
View ArticleSDK • Re: PCM playback issues
https://github.com/ikjordan/picosounds loads Wav and MP3 files and then plays them out using DMA driven PWM.However, as it appears from the code that you may be using I2S and emulating a sound chip,...
View ArticleCompute Module • Re: CSI not working
There is no camera auto detect (same is valid for DSI as well) for compute modules. You will have to add the overlay for enabling the camera yourself. The docu is a food starting point (or search the...
View ArticleGeneral discussion • Re: Case recommendation for heat sinked Pi 4...
Sorry, I didn't explain myself well.It already has heat sinks which make it bulky. So looking for a case to cope with this.Thanks, Leenobody knows which kind of heatsink you've applied -->...
View ArticleHATs and other add-ons • Pi HAT Power Supply interference
Hi ,I am trying to design a Pi 4 HAT which has all my components on it. I found a PCB template which I am planning to use. The Pi HAT will be get supply voltage from 2S-3S Lipo battery. I need to have...
View ArticleGeneral • Re: RP2040 SWD entry once more
Here https://developer.arm.com/documentation ... op-support it saysAll targets are selected following a Wire Reset, and remain selected unless a TARGETSEL command is received, which selects a single...
View ArticleGeneral • Updated SDK, now cannot program PICOs
I've not done any PICO programming for a few months, so I updated the SDK, but now nothing works ! Pico and Debug probe were previously working together OK. But now.....Code:...
View ArticleTroubleshooting • Bookworm wifi
Hi I have a Raspberry pi5 with a hat with SSD with bookworm installed on it. I have a problem it connects to wifi networks but as soon as I try to open an internet page or the update command it...
View ArticleCamera board • Re: High CPU Usage with libcamera and GS Camera on Raspberry Pi 5
Pi 0-4 had hardware video encode blocks that had limitations (1080p30 officially).Pi5 has dropped that hardware encoder as the ARM CPUs can achieve better results, however that inherently increases...
View ArticleBeginners • Re: Installing a MIPI DSI Display with no driver available
There are some docs in PIP that will help you get started, but without the datasheets for the specific displays you have (for timing etc), you will not get far.https://pip.raspberrypi.com/categories/...
View ArticleTroubleshooting • Re: Raspberrypi 5 freeze randomly and verry often
I'm not so sure it's the os it self or the official power supply or the pi5,since Bookworm works ok in my pi4.Fully updated bookworm does not resolve the issue, updating eeprom does not either.Not the...
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Troubleshooting • Re: Pi not working
Sorry, but that is meaningless mumbo-jumbo.Quite. This is one of those threads where one wonders at the futility of chewing through the restraints. To repeat.I did not write that. The words are from...
View ArticleAdvanced users • Re: Buildroot pi5 kernel fails to boot - pinctrl/pinconf
vclog output:Code: 004183.831: Initial voltage 800000 temp 26289004381.325: avs_2712: AVS pred 8853 885300 temp 26838004381.336: vpred 885 mV +0005005.358: FB framebuffer_swap 1005022.871: Select...
View ArticleCamera board • Re: imx290 (4 lanes) rpi5 max fps?
So there is a publicly released datasheet for the IMX290 datasheets (whether deliberately or not)https://static6.arrow.com/aropdfconvers ... asheet.pdf- Register 0x3009 bits 0&1 get set to 0...
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