PyAvrOCD

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PyAvrOCD is a GDB server for 8-bit AVR MCUs (see list of supported MCUs and supported boards), enabling you to debug programs running on these MCUs using the GNU Project Debugger GDB. PyAvrOCD communicates with Microchip's debug probes, such as the very affordable MPLAB Snap, and it provides a pass-through service for the UNO-based debug probe dw-link and the simulation tool simavr (see list of supported debug probes).

So, why another open-source GDB server for AVR MCUs? The main intention is to provide a cross-platform AVR GDB server. In other words, it is the missing AVR debugging solution for the Arduino IDE 2 and PlatformIO. 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 are already a few extensions of hardware packages that work with these IDEs.

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 this is a viable solution.

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

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Data verified by PyPI on Jul 7, 2026
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  • Released:
Newer release available (1.5.8)

1 maintainer

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Credits

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Author: Bernhard Nebel

GitHub Statistics

Data verified by PyPI on Jul 7, 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

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Report project as malware

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Release history Release notifications | RSS feed

1.5.8

2 files

1.5.7

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1.5.6

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This release

1.5.5 This release

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1.5.4

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1.5.3

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1.5.2

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1.5.1

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1.5.0

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Yanked reason: New monitor command does not work

1.4.0

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1.3.2

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1.3.1

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1.3.0

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1.2.3

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1.2.2

2 files

Yanked reason: Miscorrection of default value for UPDI communication speed

1.2.1

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1.2.0

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Pre-release

1.2.0a1

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1.1.2

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1.1.1

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1.1.0

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1.0.0

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0.22.0

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0.16.0

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0.15.0

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