lnBMP + RP2040 ?

 In the eternal goal of having the smaller debugger possible, i ended up porting the strict minimum of lnBMP on top of the RP2040 chip.

Tinyusb is available so that part was not problem.

Clang + Rust, no problem either.

The pico sdk is providing the basics , already CMake based.

Using DMA+Uart was a bit more complicated but not that much at the end of the day.

And ...It works !, expect nice pics of a lnBMP + RP2040 zero in a 3D printed case soon.

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