TrulyMarcus

Oh god this post is old, but for anyone else interested. You need an Stlink, cheap one from amazon will do. Connect the DIO, CLK, RST, GRND, and 3.3v. between...

Can someone please tell me how to upload firmware (or maybe a bootloader) via USB flash drive? My board is no longer noticed by my computer's USB ports.

So this looks like the default Stallguard example and then you added pins in the code for a second TMC2209 stepper driver and motor. But when you run the code...