<section begin="History" />
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|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Month Year
|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|TBD
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<section end="History" /><section begin="Body" /> ==CPU connector 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''==CPU connector ==
=== Description ===
The CPU connector interface available on the Evaluation Kit at the connector ''TBD:Jxxx''. ''Jxx'' J18 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:{{{nome204-som}}-EVB-CPU pins SODIMM connector-connector.png|thumb|center|500px|CPU connector connector]] ===Signals === The following table describes of the interface signals: {| class="wikitable" ! latexfontsize="scriptsize"| Pin#! latexfontsize="scriptsize"| ETRA SOM Pin#! latexfontsize="scriptsize"| Pin name! latexfontsize="scriptsize"| Pin function! latexfontsize="scriptsize"| 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 <code>/dev/ttymxc2</code> device in Linux. The peripheral is used as the default serial console, both for the bootloader and the kernel. === Device usage ===
To connect to In this SBC design the debug serial port:SOM is embedded in the carrier board so the connector is not actually usable but represents the SOM J1 connector.
# connect For a detailed description of the DB9 adapter bracket SOM pinout, please refer to the J22 connector on the SBCX board# connect a serial cable between DB9 connector and PC COM port through a NULL-modem cable (not provided)# start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1[[ETRA SOM/ETRA Hardware|ETRA SOM Hardware Manual]].
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[[Category:ETRA]]