Update all MCUdude Arduino cores to the latest version

[MCUdude]

Hi!

I've now released new versions of all my Arduino cores, and it would be great if you could add them + the new Avrdude 7.1 toolchain to PlatformIO.

The following releases requires Avrdude 7.1:

MightyCore v2.2.0
MiniCore v2.2.0
MajorCore v2.2.0
MegaCore v2.2.1
MicroCore v2.2.1

MegaCore also adds a few new AVR targets, so please merge #286 and #287 while you're at it.

MegaCoreX also needs to be updated (v1.1.1, requires Avrdude 7.1), but this needs to be done in the platform-atmelmegaavr repo.

The new release requires Avrdude 7.1. The Arduino developers have released a version with lots of binaries you guys can use directly:
https://github.com/arduino/avrdude-packing/releases/tag/7.1-arduino.1

Avrdude 7.1 includes lots of new features and improvements, and it also does extensive error checking in the avrdude.conf files 3rd party cores bundles. I wouldn't recommend using Avrdude 7.1 on old Arduino cores that haven't updated their avrdude.conf file. But for all MCUdude Arduino cores, Avrdude 7.1 is required.

Also, there's no need to provide a separate Avrdude version just for the patform-atmelmegaavr repo. It can absolutely be combined with the platform-atmelavr one.

Thanks for the support @valeros and @ivankravets

To wrap it up:

	Avrdude 6.3	Avrdude 7.1
All other Arduino cores not updated for Avrdude 7.1	✅	❌
MightyCore v2.1.3 and below	✅	❌
MiniCore v2.1.3 and below	✅	❌
MajorCore v2.1.3 and below	✅	❌
MegaCore v2.2.0 and below	✅	❌
MicroCore v2.2.0 and below	✅	❌
MegaCoreX v1.1.0 and below	✅	❌
MightyCore v2.2.0 and above	❌	✅
MiniCore v2.2.0 and above	❌	✅
MajorCore v2.2.0 and above	❌	✅
MegaCore v2.2.1 and above	❌	✅
MicroCore v2.2.1 and above	❌	✅
MegaCoreX v1.1.1 and above	❌	✅

[valeros]

Hi @MCUdude ! Thanks for such a comprehensive description. All your latest Arduino cores and the AVRDUDE 7.1 are published to the PlatformIO registry.

[MCUdude]

Thank you @valeros!

I have a large PlatformIO project where I'm using the ATmega1284P, and after running pio pkg update, it's using MightyCore v2.1.3 instead of 2.2.0. Is there anything special I need to do in order to get the latest version?

Oh! And could you please also update platform-atmelmegaavr with the latest MegaCoreX version and Avrdude? 🙂

; Part of the platformio.ini file

; Common settings for all targets
[env]
platform = atmelavr
framework = arduino
; Chip target
board = ATmega1284P
; Clock frequency in [Hz]
board_build.f_cpu = 8000000L

[valeros]

A new version of the atmelavr dev-platform hasn't been released yet, so if you want to test it out, you will need to install the upstream version of the platform:

; Common settings for all targets
[env]
platform = https://github.com/platformio/platform-atmelavr.git
framework = arduino
...

The atmelmegaavr platform will be updated as well a bit later.

[MCUdude]

A new version of the atmelavr dev-platform hasn't been released yet, so if you want to test it out, you will need to install the upstream version of the platform:

Thanks! That did the trick!

The atmelmegaavr platform will be updated as well a bit later.

Cool! The new Avrdude version is very exciting, and one of the great things it carries from the megaavr series is support for "native" SerialUPDI, which means that the device can be programmed using a standard USB to serial adapter and a resistor.

Stay safe! 🇺🇦 🇳🇴

[MCUdude]

@valeros Now that I realized that PlatformIO uses the avrdude.conf file that's bundled with the Avrdude binary and not the one that's shipped with the Arduino core, It should be safe to use Avrdude 7.1 with all AVR targets. It doesn't introduce any breaking changes as long as the avrdude.conf file is updated to work with Avrdude 7.1. Bear this in mind as the 7.1 release is a big improvement over 6.3.