ESP32 Forum

Posted: **Wed Aug 07, 2024 8:17 am**

Hello,
I have installed the following:

latest esp-idf
vscode with espressif esp-idf extension

on my arch linux system.

Then I created new project based on the empty template. It compiles fine, just as I expected.

But now the hard part:
I connected a Seeed Studio XIAO ESP32C6 vio USB to my PC.
Running lsusb shows me "Bus 003 Device 005: ID 303a:1001 Espressif USB JTAG/serial debug unit". Is that correct?

But flashing from vscode does not work:

esptool.py v4.8.dev4
Serial port /dev/ttyS0

A fatal error occurred: Could not open /dev/ttyS0, the port is busy or doesn't exist.
(Could not configure port: (5, 'Input/output error'))

Is there anything I need to do to make my ESP32C6 show up as a serial port? Or do I need to flash it in another way?

Posted: **Fri Aug 09, 2024 7:59 am**

Hello,

it seems you just selected a wrong device file. It should be something like /dev/ttyACM0. You can check dmesg

Code: Select all

sudo dmesg

[  629.711014] usb 3-2: new full-speed USB device number 3 using xhci_hcd
[  629.866286] usb 3-2: New USB device found, idVendor=303a, idProduct=1001, bcdDevice= 1.01
[  629.866300] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  629.866306] usb 3-2: Product: USB JTAG/serial debug unit
[  629.866311] usb 3-2: Manufacturer: Espressif
[  629.866316] usb 3-2: SerialNumber: 7C:DF:A1:E8:5D:68
[  629.899999] cdc_acm 3-2:1.0: ttyACM0: USB ACM device

Try to change the device file in the VSC extension(bottom left). I believe it should also give you some hints what port to select. HTH

Posted: **Fri Aug 09, 2024 8:02 am**

You're right!
The device name is different from all my other ESP32 that I have programmed so far. "/dev/ttyACM0" works!

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