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SpenceKonde / DxCore

Arduino core for AVR DA, DB, DD, EA and future DU-series parts - Microchip's latest and greatest AVRs. Library maintainers: Porting help and adviccee is available.
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Add support for serial adapter updi programming pyupdi-style #38

Closed SpenceKonde closed 3 years ago

SpenceKonde commented 3 years ago

pymcuprog support is going into 2.2.0 of megaTinyCore for programming using a serial adapter as a UPDI programmer.

Curiosity Nano will be supported by avrdude.

MCUdude commented 3 years ago

I'll just leave this here: https://savannah.nongnu.org/patch/?10000

Pretty much my dreams come true!

MCUdude commented 3 years ago

It has already been merged into Arduino's Avrdude distribution! https://github.com/facchinm/avrdude/pull/11

I haven't tried with AVR DA's yet, but I can confirm that the MPLAB SNAP programmer works. I'll try with my Curiosity 128DA48 later

MCUdude commented 3 years ago

I just couldn't wait. The Curiosity 128DA48 works flawlessly with the new Avrdude version. No need to bundle pymcuprog anymore!

SpenceKonde commented 3 years ago

No, we do still need pymcuprog for programming with just serial adapter and 4.7k resistor - but as it happens, getting the other programmers working looked like it would be much harder.

MCUdude commented 3 years ago

No, we do still need pymcuprog for programming with just serial adapter and 4.7k resistor

I thought it was pyupdi that did this, not pymcuprog?

From the pymcuprog Pypi website:

The following Atmel/Microchip debuggers are supported: JTAGICE3 (only firmware version 3.x) Atmel-ICE Power Debugger EDBG mEDBG nEDBG / PKoB nano MPLAB PICkit 4 ICD (only when in 'AVR mode') MPLAB Snap ICD (only when in 'AVR mode') Although not all functionality is provided on all boards. See device support section below.

But yes, I can imagine that bundling pyupdi so it works on all OSes is more complicated than just referring to an Avrdude version in the boards manager file.

SpenceKonde commented 3 years ago

It's also got the pyupdi functionality in there.

We're pretty much there at this point - it was support for everything other than the pyupdi-style programming that was going to be much harder.

MCUdude commented 3 years ago

But why bother with pymcuprog when Avrdude will cover everything except the pyupdi part? Why not just bundle pyupdi instead? Unlike pymcuprog, pyupdi open-source, which is a big deal.

SpenceKonde commented 3 years ago

Because the developer of pyupdi and two Microchip employees at the meeting about this in November were vehement that pymcuprog should be used instead of pyupdi :-P

MCUdude commented 3 years ago

Because the developer of pyupdi and two Microchip employees at the meeting about this in November were vehement that pymcuprog should be used instead of pyupdi :-P

But closed-source is closed-source, regardless of what the Microchip developers feel. Personally I'm not going to use pymcuprog until it goes open. Hopefully, it will happen soon.

We plan to put it out early next year (some QA first). https://github.com/mraardvark/pymcuprog/issues/1

When its source code is available, I'll be mention pymcuprog as a viable alternative to pyupdi and Avrdude in the MegaCoreX PlatformIO readme. I don't think I'll bother trying to get pyupdi working with Arduino IDE. PlatformIO is so brilliant these days anyways.