Add support for dual usb serial on the Pico.
The pico has the hardware to support for enumerating as multiple usb serial ports on the host computer. This is proven by the fact that CircuitPython exposes the ability to do so.
Board definitions for rp2 ports
Hi! Is there a plan for supporting other RP2040 boards besides the Pico? I don't see a boards directory in ports/rp2.
We're releasing the Feather RP2040 today and would like to have MicroPython support as well as CircuitPython. I suspect other vendors would like this as well.
I tried putting the Pico UF2 of MicroPython on the Feather but didn't get a serial port to appear. I suspect the challenge of supporting other boards will be the varying flash chips that different boards use. (The Feather uses a GD2564C.)
For CircuitPython, I've just started a TOML "database" for settings of flash chips here.