arduino samd should change from BOSSA to uf2 default bootloader

[sabas1080]

Hi

I have been working recently with the SAMD family and have tried different programming languages.

On my way I have found with uf2 and today my question is why arduino does not accept this bootloader as the default?

uf2 advantage:

• Compatible with BOSSA, makecode, circuitpython and rust
• Drag and drop binary
• python convert script
• License MIT

Features

• USB CDC (Serial emulation) monitor mode compatible with Arduino (including XYZ commands) and BOSSA flashing tool
• USB MSC interface for writing UF2 files
• reading of the contests of the flash as an UF2 file via USB MSC
• UART Serial (real serial wire) monitor mode (typically disabled due to space constraints)
• In-memory logging for debugging - use the logs target to extract the logs using openocd
• double-tap reset to stay in the bootloader mode
• automatic reset after UF2 file is written

Reference:

• https://makecode.com/blog/one-chip-to-flash-them-all
• https://github.com/Microsoft/uf2-samdx1

this will help more arduino boards to be ported to other languages

Thanks