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ETRA SOM/ETRA Evaluation Kit/Interfaces and Connectors/Power Supply

695 bytes removed, 11:47, 31 December 2020
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<section begin="History" />
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<section end="History" /><section begin="Body" />
==Power Supply 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''The power supply for this EVB can be provided through J1 connector or from USB OTG connector.
=== J1 Description TDO: add image ===Power can be provided through the J1 connector. Power voltage range is +[12-24 V].
The Power Supply interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.  ''Jxx'' J1 is a ''TBD:connectortwo pins MSTBA 2.5/2-G-type'' header 5.08 Phoenix connector for the RS232 two-wires UART3 port, used for debug purposes (bootloader and operating system serial console).
[[File:{{{nome-som}}-EVB-Power Supply-connector.png|thumb|center|500px|Power Supply connector]]
===J1 Signals ===
The following table describes the interface signals:
{| class="wikitable"
! latexfontsize="scriptsize"| Pin#! latexfontsize="scriptsize"| 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|
|-
| 31| J1.187| RS232_TX| Transmit lineVIN| +[12-24 V]
|-
| 92| -| DGNDGND
| Ground
|
|}
=== Device mapping Power LED ===UART3 DL1 is mapped to <code>/dev/ttymxc2</code> device in Linux. The peripheral is used as a green LED (placed near the default serial console, both for SoM) it shows the bootloader and status of the kernelpower input. === Device usage === To connect to the debug serial port: # connect the DB9 adapter bracket to the J22 connector on the SBCX board# connect This LED is ON when a serial cable between DB9 connector and PC COM valid power supply is present eighter from J1 or USB OTG 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.
----
[[Category:ETRA]]
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