Bare metal, Assembly language • RPi 5 always-on GPIO (bcm2712 gio_aon)...
I'm making a simple blink bare-metal example program for the Pi 5, and I wanted to blink the on-board green (ACT) led.According to the linux kernel files, the ACT led is connected to GPIO 9 of...
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Bare metal, Assembly language • Re: RPi 5 always-on GPIO (bcm2712) control
I think it's actually starting from 0x107d517c00 (having the "0x10 prefix") according to this reddit post: https://www.reddit.com/r/raspberry_pi/c ... are_buttonCode: $ sudo grep -i gpio...
View ArticleAutomation, sensing and robotics • Re: 2 Relays Module with JD-VCC
The referenced pdf file shows the schema of the board. Compare with the schema in viewtopic.php?f=91&t=83372&p=1225448#p1225448 Do not use the jumper shown in the image on J5. Connecting relay...
View ArticlePython • Re: Pygame on Raspberry Pi looks very weird
Try this:Code: #!/usr/bin/env python3import pygameimport sysred = (255,0,0)black = (0,0,0)test_box = pygame.Rect(10, 130, 80, 60)pygame.init()screen = pygame.display.set_mode((0, 0),...
View ArticleCamera board • Re: "Or Better"?
In mergeviews, I'd put it round here:Code: request_2 = cam2_request if request_2 is None: return request_2.acquire()and in save_request it probably only needs to go round "cam2_request.release()", but...
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Bare metal, Assembly language • Re: RPi 5 always-on GPIO (bcm2712 gio_aon)...
Just wanna say that it works perfectly! Thanks a lot For anyone who stubles upon this, there's two relevant registers: GIO_IODIR (at 0x107d517c08; sets the GPIO direction - 0 is output, 1 is input)...
View ArticleRaspberry Pi OS • Re: how to make apt (-install) work again for Stretch?
WHY do you WANT to use apt on Stretch? There will NEVER be any updates and it is unclear WHAT you want to do. If you explained you might get more helpful responses.It is quite simple to run apt if you...
View ArticleGeneral • Re: output(printf()) does not show in the serial monitor
After adding this below code in multicore.c file./****************************************************** * Copyright (c) 2020 Raspberry Pi (Trading) Ltd. * * SPDX-License-Identifier: BSD-3-Clause...
View ArticleCompute Module • Re: Camera unable to capture image on compute module 4 with...
I am using a Compute Module 4 with an external PCI connection. I have attached a USB camera to the PCI and am observing the issues mentioned above. I have also checked the kernel logs and other logs...
View ArticleBeginners • Re: ws2812 pwm and wled
So you want to replace ten LED on an existing device with a more colorful implementation using a raspberry pico and ten ws2812 ?Just for curiosity, how will you 'tap' the existing device to acquire...
View ArticleTroubleshooting • Re: how to force rpi3 (Bookworm) to output 1080p?
Did you look in the mamual/documentation?https://www.raspberrypi.com/documentati ... d-rotationStatistics: Posted by bensimmo — Mon Oct 28, 2024 6:16 am
View ArticleMicroPython • Re: v1.24.0 released
Oh, the coprodis_command function (line 5656) looks utterly brutal. From:Code: https://github.com/raspberrypi/picotool/blob/master/main.cppThe regex while (true) loop has massive amounts of string...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: I2C1 stopped working, others act funny
Just a quick reflection on the schematic. Is it really 4.7 Ohms? Shouldn't it be like 4700 Ohms for the high level pullups? In other words, check the level converter, it might have fried if you really...
View ArticlePython • Re: Reading Photoresistor Values on LCD
Just look to your code how the temp and humidity sensor values are measured and placed on the LCD, and then do this similar with the photoresistor values.Or post your code here and perhaps someone...
View ArticlePython • Re: Detect motion with pi camera v1
Update: running it on a Pi 3B+ (Bookworm 64-bit) with a V2 camera module it all worked fine.I transfer the captured video to my PC (ftp) and look at it in VLC on the PC - all good.The problem was...
View ArticleAdvanced users • Re: NUMA Testing
I've done some additional testing on my 8GB board. I've been comparing results from my initial testing of this board back when it was released, trying to replicate conditions as best as I could. I've...
View ArticleTroubleshooting • Re: Comparison of Periodic Processing on RPi4 and RPi5
On a pi5 I used libgpiod cloned from github:Code: git clone https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.gitAlso lg.https://abyz.me.uk/lg/https://github.com/joan2937/lgThanks for reply. I...
View ArticleTroubleshooting • Pinn not booting
I put pinn ing on a card using pi4 running pi imager. Put card in my pi 1 it failed to boot ? My question, I run a pi1b+ , pi3 , pi4 , pi5 is pinn compatible with all pi svc? From reading many posts...
View ArticleRaspberry Pi OS • Re: LABWC and XWayland
Xwayland should start automatically as soon as a program requests an X function. Check "ps ax" and see if it has started - it works in our testing.Statistics: Posted by spl23 — Tue Oct 29, 2024 7:07 am
View ArticleRaspberry Pi OS • Re: Pi5 NetworkManager
We've found this issue - there is a timing problem with opening that menu in some circumstances. We have a fix - it will be in apt later on today.Statistics: Posted by spl23 — Tue Oct 29, 2024 7:08 am
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