Secondary Virtual COM Port on Raspberry Pi Pico

[omicronns]

Hi,

I'm trying to add secondary VCP in MicroPython on Raspberry Pi Pico. I found this thread, and followed it. Unfortunately it doesn't work. I can build micropython with additional entries in micropython/ports/rp2/boards/PICO/mpconfigboard.h:

#define MICROPY_HW_USB_CDC_NUM      (2)
#define MICROPY_HW_USB_ENABLE_CDC2  (1)

But no additional com port is present in my system, only ttyACM0. Next point in linked thread is about adding boot.py, but pyb object/module is not available for me.

What am I doing wrong?

[jimmo]

As described in that forum post, this feature is only for the stm32/pyboard (and only the high-end ones).

We're working on more support for configuring the USB endpoints for Pico and other ports (including HID support), but this is not ready yet

[omicronns]

Thank you for the response. It will be really useful feature. Looking forward to it.

[barafael]

If I may ask, is there anything going on with this subject? I am also interested in opening a second VCP.

[scruss]

this is the PR to watch for progress: tinyusb: Support USB device drivers written in Python by projectgus · Pull Request #9497 · micropython/micropython