title: Minicom is not starting
body: <p>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</p>
  
  <pre><code>minicom: cannot open /dev/ttyUSB0: No such file or directory
  </code></pre>
  
  <p>I already followed all the steps given in this <a href="https://stackoverflow.com/questions/5347962/how-to-connect-to-a-terminal-to-serial-usb-device-on-ubuntu-10-10">How to connect to a terminal to Serial-USB device on Ubuntu 10.10?</a>  post.</p>
  
  <p>I am getting this after Serial Post setup from minicom. </p>
  
  <p><a href="https://i.stack.imgur.com/I11TV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/I11TV.png" alt="enter image description here"></a></p>
  
  <p>Checking with <code>lsusb</code></p>
  
  <p><a href="https://i.stack.imgur.com/gT7nI.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gT7nI.png" alt="enter image description here"></a></p>
  
  <p>Checking with <code>dmesg | grep tty</code></p>
  
  <p><a href="https://i.stack.imgur.com/gVRAX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gVRAX.png" alt="enter image description here"></a></p>
  
  <p>I have also checked with <em>ttyUSB1,ttyUSB2, ttyACM1,ttyACM0</em> etc. </p>
  
  <p>result of <code>sudo lsusb -v</code>
  <a href="https://i.stack.imgur.com/mTtW1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mTtW1.png" alt="enter image description here"></a></p>
  
  <p>I am following <a href="https://www.youtube.com/watch?v=39lntX-8tfk" rel="nofollow noreferrer">this</a> tutorial. My machine is Ubuntu 16.04LTE</p>
  
  <p>Edit:</p>
  
  <p><a href="https://i.stack.imgur.com/J2Wjv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/J2Wjv.png" alt="enter image description here"></a></p>
  
  <pre><code>~/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
  </code></pre>