Difference between revisions of "ETRA SOM/ETRA Evaluation Kit/Interfaces and Connectors/Power Supply"

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<section begin="History" />
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! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History
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!colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|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:#73B2C7; padding:5px; color:white" |Issue Date
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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:#73B2C7; padding:5px; color:white"|Version
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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:#73B2C7; padding:5px; color:white" |Notes
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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:#73B2C7; padding:5px; color:white"|Issue Date
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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:#73B2C7; padding:5px; color:white"|Notes
 
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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"|X.Y.Z
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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
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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"|TBD
 
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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
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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"|TBD
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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"|...
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<section end="History" />
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<section end=History/>
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<section begin="Body" />
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<section begin=Body/>
  
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==Power Supply ==
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==Power Supply interface ==
  
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The power supply for this EVB can be provided through J1 connector or from USB OTG connector.
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''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''
  
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=== Description ===
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=== Description ===
  
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Power can be provided through the J1 connector. Power voltage range is +[12-24 V].
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The Power Supply interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.  
  
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J1 is a two pins MSTBA 2.5/2-G-5.08 Phoenix connector.
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''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).
  
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[[File:ETRA-EVK-Power Supply-connector.png|thumb|center|300px|Power Supply connector]]
 
  
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=== Signals ===
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[[File:{{{nome-som}}-EVB-Power Supply-connector.png|thumb|center|500px|Power Supply connector]]
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===Signals ===
  
 
The following table describes the interface signals:
 
The following table describes the interface signals:
  
 
{| class="wikitable"  
 
{| class="wikitable"  
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! latexfontsize="scriptsize" | Pin#
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! latexfontsize="scriptsize"| Pin#
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! latexfontsize="scriptsize" | Pin function
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! latexfontsize="scriptsize"| SOM Pin#
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! latexfontsize="scriptsize" | Pin Notes
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! latexfontsize="scriptsize"| Pin name
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! latexfontsize="scriptsize"| Pin function
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! latexfontsize="scriptsize"| Pin Notes
 
|-
 
|-
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|1
+
|1,2,4,6,,7,8,10
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| VIN
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| -
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| +[12-24 V]
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| N.A.
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| N.C.
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| Not connected
 
|-
 
|-
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| 2
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| 3
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| GND
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| J1.189
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| RS232_RX
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| Receive line
 +
|
 +
|-
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| 3
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| J1.187
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| RS232_TX
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| Transmit line
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|
 +
|-
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| 9
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| -
 +
| DGND
 
| Ground
 
| Ground
 +
|
 
|}
 
|}
  
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=== Power LED ===
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=== Device mapping ===
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DL1 is a green LED (placed near the SOM) it shows the status of the power input. This LED is ON when a valid power supply is present either from J1 or USB OTG port.
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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.
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=== Device usage ===
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To connect to the debug serial port:
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# connect the DB9 adapter bracket to the J22 connector on the SBCX board
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# connect a serial cable between DB9 connector and PC COM port through a NULL-modem cable (not provided)
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# start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1
 +
 
 
----
 
----
  
 
[[Category:ETRA]]
 
[[Category:ETRA]]

Revision as of 11:35, 31 December 2020

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


Power Supply interface[edit | edit source]

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[edit | edit source]

The Power Supply 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-Power Supply-connector.png|thumb|center|500px|Power Supply connector]]

Signals[edit | edit source]

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[edit | edit source]

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[edit | edit source]

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
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