AAEON PFM-C42C - Manual (Page 24)

P C / 1 0 4 P e r i p h e r a l M o d u l e P F M - C 4 2 C
PFM-C42C Quick Installation Guide 1-24
As the screen showing, use 16550A to be UART prefix is
the system COM ports, and we can see this system have
2 COM ports, leave each other ttyS0, ttyS1.
2. Make lspci -v command to find OXmPCI952 IRQ and I/O
address
As the screen showing, we can find ”Serial controller:
Oxford Semiconductor Ltd:” this alphabetic string then to
see the next line have IRQ number and the next have
I/O address
3. Open the file: /etc/rc.local and add two commands
setserial /dev/ttySX1 port IOADDR1 irq Y uart 16950 baud_base 115200
setserial /dev/ttySX2 port IOADDR2 irq Y uart 16950 baud_base 115200
In above command line X1,X2 is the COM port number
and it must be beyond beforehand. So in this case X1 is 4,
X2 is 5. Besides, Y is IRQ number . Finally, we can set the
I/O address individually.
setserial /dev/ttyS4 port 0xe000 irq 9 uart 16950 baud_base 115200