Compatibility

RP2040Sharp runs real, unmodified firmware images.

MicroPython

Stock MicroPython UF2 images for the Raspberry Pi Pico boot to an interactive REPL over emulated USB-CDC. The integration suite runs against v1.19.1, v1.20.0, and v1.21.0. Flash program/erase is implemented via native C# hooks, so MicroPython’s LittleFS filesystem works correctly.

using var pico = new PicoSimulation();
pico.LoadFlash(RP2040Machine.Uf2ToFlash(microPythonUf2)!);
pico.RunUntilOutput(pico.UsbCdc, ">>> ", timeoutMs: 60_000);

CircuitPython

CircuitPython boots to its REPL as well. USB host support is currently CDC-only (sufficient for the REPL); MSC/HID host drivers are not included.

Bare-metal (pico-sdk, PyMCU)

Any firmware built with the pico-sdk toolchain runs directly. This is the primary use case for PyMCU, which compiles Python to bare-metal ARM and uses RP2040Sharp as its RP2040 integration testkit.