Support for uart and usb?

[zuidwijk]

Im wondering if the small sot8 version can do a simple rx-uart to usb? So only receiving data from serial and send that to usb.

Im looking for a solution and this small sot8 version of ch32v003 looks perfect.

[cnlohr]

Windows doesn't allow CDC-serial low-speed devices as far as I'm aware. If you can find any other examples of a low-speed device enumerating as a serial port in Windows, I'd love to know about it so we can copy whatever they're doing.

[prosper00]

its been a long time since I've used VUSB, and even longer since I've used Windows, but I do seem to recall that the VUSB bitbang library for avr can do CDC

Some googling turns up a bunch of old projects. The most recent i can find is https://github.com/wagiminator/VUSB-AVR/tree/main/vusb_avr/libraries/VUSB_CDC

[cnlohr]

I believe none of them work with anything past Windows 8.

[bikeNomad]

There is this low-speed CDC driver: https://github.com/protaskin/LowCDC-Win10x64/blob/master/lowcdc.inf

[zuidwijk]

Hmm, I'm not familiar with software/driver development... but CDC-serial low-speed, what speed are we talking about?
In my case, I'm interested in 115200 baud (reading serial data).