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The DE10-nano board has console port. The console allows you to login into Linux without a network connection and also provides some debug/info which sometimes useful to track the problems.

Refer to the **UART-to-USB (USB Mini-B)** connector on the board right side in the picture below:

![UART port location](img/layout_top.jpg)

## Connect with Windows
Connect the DE10-nano board to a PC using the **UART-to-USB (USB mini type B)** connector next to micro-USB. The PC will recognize it as virtual COM port. Use any console application to connect to this COM port. I recommend [Putty](https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html){target=_blank}.

Verify that COM port settings are correct:

* Speed (baud rate) - 115200 bits per second
* Data bits - 8
* Stop bits - 1
* Parity - none
* Flow control - none

Here's a quick video for connections on Windows:

![type:video](videos/console-connection.mp4)

## Linux Connections

1. Be sure to be a member of the **dialout** group.
2. Your serial port is likely to be **/dev/ttyUSB0**
3. Configure it: `$ stty -F /dev/ttyUSB0 115200 cs8 -cstopb -parenb -ixoff -ixon`
4. Look at the output while dumping it to a file: `cat /dev/ttyUSB0 | tee mr.log`

Now mr.log has a copy of all the information shown in the screen.

## U-Boot command prompt

To interrupt u-boot and get into the u-boot command prompt once connected to the DE10-Nano, hold 'ESC' on the PC and then power on or reboot the Nano (using the reset button). Startup should be interrupted and you should see a '=>' prompt. Here you can edit the kernel boot options etc.