Getting started
Just plug the wire to serial port on your PC and COM 1 for the SBC. Open terminal and switch to as root.

$ su root

$ sudo su (for ubuntu user)

Minicom is a text-based, serial communications program designed for Linux and distributed under the Free Software Foundation GNU Public License.

1. By default, minicom is not installed in Ubuntu, so user need to install it first.
sudo apt-get install minicom
2. Find the name of your Serial Port
dmesg | grep tty
In the output look for something like “tty”. The output in my case is like this:
$ dmesg | grep tty
[ 17.341823] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 17.342454] 00:0b: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
This means the device correspond to serial port is ttyS0.
3. Configure minicom
sudo minicom -s
o Use the keyboard keys to select the menu item Serial port setup.
o Enter A to change the Serial Device to /dev/ttyS0, and then enter E to change the line speed to 115200 8N1
o Using arrow keys, select Save setup as dfl
4. Select Exit from Minicom.
5. Next time, from the terminal user only need to run sudo minicom in order to access the TS7200 SBC.