Run your own code INSIDE your retro ROMs - introducing One ROM plugins

In this video I explain how you can run your own code within the most flexible replacement ROM for your retro systems, One ROM. Plugins run on One ROM’s two spare ARM Cortex-M33 150MHz cores, in parallel with One ROM serving a ROM to the retro system.

I demonstrate the blinky and live USB stack plugins, including what they do and how they were written, and show you how to get started with writing your own plugins.

I also cover:

How to monitor and modify One ROM live, while it’s running, using the USB plugin and One ROM’s new CLI.
picobootx - an open source PICOBOOT implementation you can include in your own firmware, allowing it to be managed by tools like picotool and picoflash directly, without being in BOOTSEL mode.
pico-sdkless - build projects like tinyusb for the RP2350 without needing the full Pico SDK.

🔗 Links

Discord: https://discord.gg/tq22nJefXr
Buy: https://onerom.org/buy

One ROM Plugin API: https://github.com/piersfinlayson/one-rom/blob/main/sdrr/ora/api.h
Picobootx: https://github.com/piersfinlayson/picobootx
Pico-sdkless: https://github.com/piersfinlayson/pico-sdkless
picoflash: https://picoflash.org/

⏰ Timestamps

00:00 Introduction
01:37 USB Plugin