Connect using USB

On the Linux host you need a serial console program like minicom.

On the host, the user must be a member of the dialout group (or otherwise use sudo) to be allowed to use a serial port (usually /dev/ttyUSB0).

Connect the target (MarS Board) to the host with a USB cable. On the target side, use the mini USB debug port which is located next to the network connector.

On the host, open a terminal and execute the command

minicom -D /dev/ttyUSB0

From within the minicom window configure minicom: press Ctrl+A O

• Serial Port Setup to use the correct serial device (/dev/ttyUSB0 in most cases) with 115200 baud and no hardware flow control
• Screen and Keyboard to "enable line wrap" (if you like)
• optional: enable the minicom logging option (Ctrl+A L).

Save your setup as default.

Exit minicom by pressing Ctrl+A X and restart minicom.

Both software ends of the serial connection have to agree upon a terminal type. You should set setterm vt102 on the MarS Board which is one of the terminal types that minicom supports. This is especially important when you use a "full screen editor" like nano which makes heavy use of terminal control commands.

Now you are ready to Boot Linux.

Two green LEDs on the board (rx and tx) will flash for each symbol which is passed on the serial (debug) port, thereby indicating successful communication.

Connect using Network

Prerequisites:

• the board does Boot Linux
• a ssh server is included in the MarS Board image, see Configure the Image.

Connect host and target to the same network with a DHCP server.

Find target ip v4 address, say x.y.z.t, e.g. by using a USB connection and the ifconfig command or checking the DHCP server log.

On the host use the command

ssh -l root x.y.z.t

to login on the target or

scp myfile [email protected]:/home/root

to copy files to or from the target.