Moonglow

@MC-tecnologias Did you attach CAN bus transceivers ( as example TJA1050 ) to that pins ? Provide as more information, what did you change how you connect external phy to...

If you built correct firmware and connect all as it should be it must works as expected. p.s: `MCP2551/TJA1050` use `5V` as `VDD`

>The board is a drone flight controller with a stm32f405. Please check your pin schematic, maybe you have pin conflict... maybe you try use PA11/PA12 pins for USB and for...

@MC-tecnologias 1. You try to solve some abstract problem for my pov, because you do not tell which fw variant you build ( i recommends you 1 channel fd version,...

@kristyandi Hi! You no need high speed PHY for USB-HS in my case... Readme file refer you which one need to use, **without hi-speed PHY USB-HS will works in USB-FS**...

@P208PUG maybe you can provide more information ? which version you flashed in ? how it recognized by your system... did you read about that issue #16 ? You can...