Can't get tinyfpga_bx_usbserial to work on BX


I’m trying to get USB serial to work, but just can’t get anything to work. I want to use tinyfpga_bx_usbserial. I synthesized it fine on with Ubuntu on WSL, but after programming it programming it I get this error on Windows 10:

This device cannot start. (Code 10)

{Operation Failed}
The requested operation was unsuccessful.

The only USB serial solution I’ve had work is hello_world by Lawrie. I would love to use tinyfpga_bx_usbserial as it takes up half the space that Lawrie’s does.

Does anyone have an idea why it isn’t working?

Why "drive USB pull-up resistor to '0' to disable USB"?

Did you ever get that working? I get to the same point (built the bin in an Ubuntu 19.10 VM, flashed via Windows 10 because the VM balked at that step) and then the error you get (in Device Manager).