ARTiGO A820 Linux BSP v3.2.1 Quick Start Guide
5
2.3.
Setting Up U-Boot Parameters
The first step is to connect the host machine and the ARTiGO A820 through the onboard
COM debug port. Use a serial port communication program such as PuTTY, GtkTerm, or
Minicom, to configure serial port setting and connect to the debug console. There you
will be able to see the U-Boot boot log and adjust settings in the U-Boot console.
+-----------------------------------------------------------------------------------------------------------+
| A
-
Serial Device
: /dev/ttymxc0 |
| B
-
Lockfile Location
: /var/lock |
| C
-
Callin Program
: |
| D
-
Callout Program
: |
| E
-
Bps/Par/Bits
: 115200 8N1 |
| F
-
Hardware Flow Control
: No |
| G
-
Software Flow Control
: No |
+-----------------------------------------------------------------------------------------------------------+
Serial port setting of host machine
COM debug connector diagram
485
USB
DIO
COM 1
232
WIRELESS
PWR
RESET
1
1
