AOM-DB3500 UART(DEBUG、COM1、M.2 E-Key)
UART
User Debian/Linux UART/serial port access is through the tty-devices. The tty�devices have different names depending on UART drivers for different boards.
| Device Node | COM Port Name |
| /dev/ttyFIQ0 | Debug |
| /dev/ttyS0 | COM1（RS232 2-wire） |
| /dev/ttyS6 | M.2_E1（UART） |
DEBUG Port Connection
1.Connect the debug port cable on AOM-DB3500.
2.Connect it to your PC with a USB to COM Cable.
| DEBUG Pin Connector | |
| Pin | Signal |
| 1 | NC |
| 2 | RX_DEBUG |
| 3 | TX_DEBUG |
| 4 | NC |
| 5 | GND |
| 6 | NC |
| 7 | RTS# |
| 8 | CTS# |
| 9 | NC |
Debug Port Settings
AOM-3821 can communicate with a host server using serial cables. Common serial communication programs such as HyperTerminal, Tera Term, or PuTTY can be used in this case. The example below describes the serial terminal setup using HyperTerminal on a Windows host:
1. Connect AOM-3821 with your PC using a serial cable.
2. Open HyperTerminal on your Windows PC, and select the settings demon�strated in the photo below.
3. Insert a power adapter into the DC jack and power up the board. The Debug console log will be displayed on the terminal screen.
COM1
M.2 E-Key