PyAvrOCD

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PyAvrOCD is a GDB server for 8-bit AVR MCUs (see list of supported MCUs and supported boards), communicating with Microchip's EDBG-based debug probes, e.g., MPLAB Snap. So, is it simply another open-source GDB server for AVR MCUs? No! It is a cross-platform AVR GDB server. This means that it was easily possible to integrate it into Arduino IDE 2 and PlatformIO board packages, bringing AVR debugging to these IDEs. Additionally, PyAvrOCD excels in minimizing flash wear and protects single-stepping against interrupts.

Interested in giving PyAvrOCD a try? You are welcome to install it. Want to learn more about it? Read the docs. Any feedback, be it bug reports, crazy ideas, or praise, is welcome.

What has been done so far, and what to expect in the future

Meanwhile, PyAvrOCD covers all debugWIRE, JTAG (Megas), and UPDI MCUs. I am unsure whether it makes sense to extend its coverage to Xmegas.

I made some leeway into integrating PyAvrOCD more tightly with PlatformIO and with the Arduino Maker Workshop VSCode extension. There is the idea of basing everything on more recent versions of the GCC toolchain because it will probably solve a number of problems on the debugging front. My attempt at using the GCC 15.1 toolchain was abruptly stopped when I discovered that the compiler produces buggy debug information concerning local variables, whereas the old compiler works without a flaw at that point. I guess more research and/or debugging is necessary before GCC 15.1 is a viable solution.

Finally, I am committed to fixing some of the more obvious bugs in the AVR part of the GDB debugger.

Project links

Data verified by PyPI on Aug 4, 2026
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  • Released:
Newer release available (1.5.8)

1 maintainer

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Avatar for arduino-craft-corner from gravatar.com arduino-craft-corner

Credits

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Author: Bernhard Nebel

GitHub Statistics

Data verified by PyPI on Aug 4, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License

MIT License

Requires

Python <3.15, >=3.10

Tags

AVR EDBG gdb-server debugging

Classifiers

Report project as malware

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1.5.8

2 files

This release

1.5.7 This release

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1.5.6

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Yanked reason: New monitor command does not work

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1.2.2

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Yanked reason: Miscorrection of default value for UPDI communication speed

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1.2.0a1

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1.1.2

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1.1.1

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0.16.0

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