06-04-2021, 04:51 AM
Sadly, I don't think that the RL2040 would be a good choice for a USB storage device... Here's a quotation from page 11 of the RP2040 datasheet:
Full-speed (FS) USB 1.1, which runs at 12 Mbit/s, would be just too slow for a USB storage device.
Quote:A USB controller with embedded PHY can be used to provide FS/LS Host or Device connectivity under software control.
Full-speed (FS) USB 1.1, which runs at 12 Mbit/s, would be just too slow for a USB storage device.