Template:EVB Interfaces and Connectors

History
Version	Issue Date	Notes
X.Y.Z	Month Year	TBD
[TBD_link X.Y.Z]	Month Year	TBD
...	...	...

{{{nome-peripheral}}} interface

TBD: sostituire le sezioni con le informazioni sull'uso della periferica e del suo connettore Nell'esempio di seguito c'è la descrizione dell'interfaccia UART/console

Description

The {{{nome-peripheral}}} interface available on the Evaluation Kit at the connector TBD:Jxxx.

Jxx is a TBD:connector-type header connector for the RS232 two-wires UART3 port, used for debug purposes (bootloader and operating system serial console).

[[File:{Template:Nome-som-EVB-{{{nome-peripheral}}}-connector.png|thumb|center|500px|{{{nome-peripheral}}} connector]]

Signals

The following table describes the interface signals:

Pin#	SOM Pin#	Pin name	Pin function	Pin Notes
1,2,4,6,,7,8,10	-	N.A.	N.C.	Not connected
3	J1.189	RS232_RX	Receive line
3	J1.187	RS232_TX	Transmit line
9	-	DGND	Ground

Device mapping

UART3 is mapped to /dev/ttymxc2 device in Linux. The peripheral is used as the default serial console, both for the bootloader and the kernel.

Device usage

To connect to the debug serial port:

1. connect the DB9 adapter bracket to the J22 connector on the SBCX board
2. connect a serial cable between DB9 connector and PC COM port through a NULL-modem cable (not provided)
3. start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1

---

[[Category:{{{nome-som}}}]]