Minicom is not starting

Question

I am trying to run NuttX on STM32f429I. I have build nuttX and flashed the nuttx to the device. But after flashing when i am trying to start minicom, it showing this problem

minicom: cannot open /dev/ttyUSB0: No such file or directory

I already followed all the steps given in this How to connect to a terminal to Serial-USB device on Ubuntu 10.10? post.

I am getting this after Serial Post setup from minicom.

Checking with lsusb

Checking with dmesg | grep tty dmesg | grep tty

I have also checked with ttyUSB1,ttyUSB2, ttyACM1,ttyACM0 etc.

result of sudo lsusb -v

I am following this tutorial. My machine is Ubuntu 16.04LTE

Edit:

~/nuttxworkspace/nuttx$ dmesg | grep tty
[    0.000000] console [tty0] enabled
[    0.888895] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[25292.460385] cdc_acm 2-1.5:1.1: ttyACM0: USB ACM device

Answer 1

Is there some reason that you would expect to see /dev/ttyUSB0? Do you have CDC/ACM device class configured? What does your configuration use for a serial console? I would expect it would use the STLink-VCOM port. There won't be any USB connection unless you have full configured it that way.