Graphics programming • Re: What do we know about the VideoCoreVII GPU?
Start with the VideoCore IV 3D spec.There have been incremental updates in newer versions, but the changes will be minor.Statistics: Posted by dom — Thu Dec 19, 2024 1:59 pm
View ArticleDevice Tree • Re: MCP23017 overlay error -EIO: can't write IOCON 32
So I wait until @aBUGSworstnightmare has the device in front of him thanks for the effort and helpStatistics: Posted by koerli — Thu Dec 19, 2024 2:11 pm
View ArticlePython • Re: except KeyboardInterrupt error
I'm not a Python export, but it looks to me that the indent is wrong on the "except..." block. It should be the same level of indentation as the "try:" line, not the "with...:" line.Statistics: Posted...
View ArticleGeneral • Re: How do I integrate POSIX with rp2040
You have to replace these by calls to the corresponding routines from the Pico SDK.For nanosleep and usleep see https://www.raspberrypi.com/documentati ... roup_sleepFor tcflush, tcsetattr,...
View ArticleGeneral • Re: PIO feature request: load 32bit values from instruction memory
The register file on the PIO is 2 general purpose and several reserved registers. Two of the reserved can be used in a general purpose, if you reduce the instruction set. You can implement the FIFO as...
View ArticleAdvanced users • Raspberry Pi 5 public key in OTP
Hello, I'm trying to make secure boot enabling seamless experience. For this the plan is to use:- flashrom to update eeprom- vcgencmd to update OTP including Public Key and all the flagsI've made a...
View ArticleBeginners • Re: Install onto and boot from NVMe
No idea what's on there already so repartitioned it and wrote the imageCode: sudo parted /dev/nvme0n1 mklabel gptsudo parted -a opt /dev/nvme0 mkpart primary ext4 0% 100%sudo dd bs=1M...
View ArticleAdvanced users • Re: Non brickable update flow with AUTOBOOT
We have it like this:1. mount 2. create tmp file with the changes3. mv tmp file -> autoboot.txt4. unmountStatistics: Posted by onorua — Thu Dec 19, 2024 2:24 pm
View ArticleTroubleshooting • Raspberry pi 4b 4GB not booting anymore with rapidly...
Hi!I have a problem with trying to boot my Raspberry pi 4b. I'm trying to boot it with the Raspberry pi 64bit OS, but when i plug it in to power the green ACT led keeps blinking rapidly and a signal...
View ArticleTeaching and learning resources • Re: Advent of Code 2024
17Code: pi@pi5-8:~/AoC2024/day17 $ ./a.out Day 17: Chronospatial ComputerPart 1 - 3,4,3,1,7,6,5,6,0Part 2 - 109019930331546Run time - 5.198 ms.pi@pi5-8:~/AoC2024/day17 $ source codeStatistics: Posted...
View ArticleCamera board • high resolution streaming with picamera2 using arducam 64 mp...
Hi,I'm working on a raspberry pi 4B and I'm trying to perform a video streaming with a resolution equal to 3840x2160I need to use picamera2 and ideally I need to have just the "lores" stream but I'm...
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Off topic discussion • Chromium fullscreen
If this is the wrong place, then I apologise, but I am trying to get Chromium on a Rasperry pi 5 to go fullscreen and I cannot seem to find anything to tell me how to do this (or how to revert back)....
View ArticleMicroPython • Size of web page handled by a Pico W server?
The code below is from a ubiquitous example of how to run a webserver on a Raspberry Pi Pico W. I'm trying to use pieces of it to serve up a web page, but my page includes a lot of HTML formatting and...
View ArticleMicroPython • Re: Pico2W & micropython
Some comparisons between various builds, program and file system sizes -Vanilla MicroPython for Pico 2 - As a base reference but should run on a Pico 2W though without access to wirelessCode: Program...
View ArticleTroubleshooting • messed up my ssh connection while setting up GPS...
First of all im not sure if thats(the title) is the exact cause, Im unable to ssh after making the changes related to gps setting up.device: pi zero what: waveshare gnss hatsetup: to make an NTP...
View ArticleCamera board • Re: OV9281 Arducam
It looks to be a Pi5 thing. Pi4 is fine. Pi5 gives me a black frame.At a guess the sensor does something weird on starting streaming, and it should have mistrustFramesModeSwitch returning 1 in a...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: CSI Virtual Channel support on...
Is the RP1 CFE replacing the Unicam driver or will Unicam still be supported for setups not using virtual channels?Unicam is the driver or the CSI2 receiver on Pi0-4. Pi5 has a totally different...
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General • Re: How many LEDs can a Pico Power
Here is a test I did last month with no resistors.Running a simple loop at 100 Hz, for steady light. GPIO set to 2 mA. According to Figure 171 in the RP2040 DS, current should never exceed about 30...
View ArticleSDK • Re: Proper way to get Heap size
Code: 12 .scratch_x 00000000 20080000 20080000 00006340 2**0 13 .scratch_y 00000000 20081000 20081000 00006340 2**0 14 .stack_dummy 00000800 20081000 20081000 00006340 2**5The problem I recall I had...
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Beginners • Re: Networking
You have a Pi5, so it can't run vanilla Debian,I thought that the latest raspberry pi OS was 'vanilla' Debian, but with the Raspberry pi bits clagged on top. You can compile or take a Pi5 rpi/vendor...
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