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STM32 VCom port problem

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Pastel

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Hello!

I have tried to make a VCom port experiment using a nucleo 144 board (with STM32F767 chip).
I'm working on Ubuntu 20.10 and STM32CubeIDE, version 1.6.1. I have looked at the following
link, and although it's not the exact same development environment, I suppose it's similar.


I like his Clouseau accent.

When connected to the PC (STLink), it works just fine. I'm using Coolterm. What it does:
- After starting, I launch the terminal (Coolterm), and choose the proper serial port (/dev/ACM1).
- I receive characters on the Nucleo board.
- I echo it just to make sure that the transmission works both ways.
- When pressing r, g or b, the corresponding LED is lit.
- When pressing c, the leds are cleared.

Everything works fine. But if I disconnect STLink and try to make it work in standalone mode,
I can't find /dev/acm1 in Coolterm menu, so basically I cannot make it work.

Can anybody tell me what may be wrong?

Thanks!

Pastel
 

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