Après avoir galéré à détecter mon nouveau programmateur sur breadboard (avec avrdude et Atmel Studio 4), je me suis souvenu que j’en avais un autre, un mySmartUSB light de Laser & Co GmbH, bien en evidence sur mon atelier de poche.
Test avec avrdude → ça fonctionne enfin ! 
Je posterai une autre photo du banc de prog sur breadboard quand j’aurai fini d'étendre mon linge 
, et de mater Terrifier 3
#AVR #avrdude #AtmelStudio #électronique
Understanding the Architecture of a Microcontroller
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#MicrocontrollerArchitecture #EmbeddedSystems #AutomotiveEmbedded #ECUDevelopment #PiEmbSysTech
#CANProtocol #EmbeddedDesign #RealTimeSystems #MCUProgramming #IoTDevices #ElectronicsEngineering
#FirmwareDevelopment #DigitalElectronics #8051 #STM32 #AVR #MicrocontrollerProgramming #OpenSourceLearning
#TechLearning #NXP #TIEmbedded
Looking to find some folks who know about the events system and TCB timers on the newer #AVR microcontrollers. I am encountering some strange behaviour.
Specifically, as far as I can tell, only event system channels 0 and 1 seem to be connected to event inputs on the TCB timers on my ATtiny1626 chip. Code which works fine on those two channels fails to do anything if all I do is switch it to any of channels 2 to 5.
This is troubling because in my current application, I need 3 channels.
Working on embedded toy project which includes an 8-bit #avr MCU (AT90CAN128) - Its been quiet a while and in last years or so when it came to embedded STM32Fxxx where MCUs of choice...
The 8-bitter is fast enough, 128k are more then enough and it has everything on board I need. Ok I had to think of Interger vs Floating Point arithmetics here and there, but thats also fun - esp when programming in #rustlang.
tl;dr Too often we approach simple tasks with much too complex hard- & software
Hoping maybe the #Fediverse hive mind has some ideas about a problem.
My old workhorse Onkyo AV receiver died a few months back, and I replaced it with a Denon AVR-S970H. And it's driving me nuts.
My #TV is old, from the final generation of plasmas. Great picture. Sound is okay, but it only understands stereo and mono in uncompressed or AC-3 formats. Anything else sent to it - different codec, or multichannel/surround - is ignored and you get no sound. But that's okay!
Most of the things I watch that have stereo sound I just want to listen to through the TV anyways - TV shows, old non-spectacle movies, documentaries, all that sort of stuff. When I have a Big Movie with a #surround soundtrack, that's when I want to listen to it through the fancy speakers and the #AVR.
With my old #Onkyo, this was easy: the receiver always played the sound through itself and also sent it to the TV. If I wanted simple stereo, I'd just mute the receiver. If it was a surround sound thing, the TV just ignored it.
The #Denon... doesn't do this. I have to configure whether to output the sound through the TV, or through the AVR. There's no option for "both".
1/2
A few years ago, I started wondering if there is a way to program an AVR microcontroller without the Arduino IDE which is slow on older computers that I have. This was the starting point for the projects ucmf and yauclib:
While ucmf is a framework for compiling microcontroller projects similar to CMake, yauclib is for hardware abstraction similar to the Arduino software library. Both are in development and only support a few AVR microcontrollers so far (and Arduinos based on them).
I consider ucmf to be ready to use. yauclib still needs a lot of work, especially drivers and hardware-independent interrupt handling mechanisms.
The code for both projects is on Codeberg:
Anteris Technologies ( #AVR ) has released " Quarterly Results Announcement and SEC Form 10-Q " on Wed 14 May at 08:37 AEST #tax #government #trading #UnitedStates #ClinicalTrials
https://grafa.com/asset/anteris-technologies-ltd-687-avr.asx?utm_source=asxmktsensitive&utm_medium=mastodon&utm_campaign=avr.asx
Gloomy day so rather than gardening I'm inside playing with electronics. I got a Z80 a while ago but I never used it. I'm going to stick it on a breadboard. I don't have any RAM or ROM chips but I do have some ATmega328 chips (the arduino ones) so I can program one of those to act like a memory. Maybe load new programs through the serial port, eh?
New version of the Freestanding implementation for #GCC 15.1.0 available
The code has been branched off and a docker container for #AVR is released.
Want to try out some of the proposals for #Freestanding C++?
Want to mess around with modules?
For the AVR processor (probably the one in your #Arduino board)?
Docker image at https://hub.docker.com/repository/docker/paulbendixen/avr-libstdcxx
Source code based on official GCC 15.1.0 with further Freestanding proposals baked in:
https://gitlab.com/avr-libstdcxx/gcc/-/tree/freestanding-15-release?ref_type=heads
Q: So, anything new? What'd you do today?
A: Oh, dug through menus in a new AV receiver to find its MAC addresses, configured my network DHCP server to give it a static address, and then wrote some iptables rules to keep that address from being able to reach outside the LAN. Pretty standard stuff.
Looking for a "DO NOT CONNECT THIS MACHINE TO THE INTERNET NO MATTER HOW MUCH IT NAGS" warning sign to print out.
Made a set of scripts and stuff to build the AVR compiler and avrdude. You can use them to build and install directly in your system, create a ubuntu package for it, or make a docker image. It's at a working state, which may be as far as I take it. At some point I may create releases and publish the images, but for now if you want to use it you gotta do it yourself. PRs welcome.
https://gitlab.com/strange-crew/images/avr-tools
There's also an example program build using cmake.
STM32duino ST25DV (2.2.0) for stm32/avr/samd/arc32 by STMicroelectronics
https://github.com/stm32duino/ST25DV
Allows controlling the NFC ST25DV
QuickStats (1.2.5) for avr by David Dubins
https://github.com/dndubins/QuickStats
Descriptive Statistics for Arduino
BMC (2.3.3) for avr/esp32 by BadassMIDI.com
https://github.com/neroroxxx/BMC
Fully featured MIDI Controller Library with a Companion Editor App for 32-bit Teensy boards, Requires Teensyduino.
kari (1.0.0) for avr/megaavr/esp32/esp8266 by Vincent Muriithi Karimi
https://github.com/vincentmuriithi/kari
Arduino library for asynchronous tasks and task scheduling.Available as static library for faster compilation.
ADS1256 (1.4.0) for avr/stm32/esp32/renesas_uno/rp2040 by Curious Scientist
https://github.com/CuriousScientist0/ADS1256
An Arduino-compatible library for the 24-bit ADS1256 analog-to-digital converter.
SmartSystem (1.0.4) for avr by Meryck Franklin-Ryan
https://bitbucket.org/mgf_ryan/smartsystem
A library that simplifies exposing modular Arduino functionality over Wire I2C / RF24 radio
KY040 (1.0.3) for avr/esp32 by codingABI
https://github.com/codingABI/KY040
Library for KY-040 rotary encoders with debouncing, polling and interrupt mode
