Difference between revisions of "ORCA SOM/ORCA Evaluation Kit/Interfaces and Connectors/CPU connector"

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!colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History
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==CPU connector interface ==
 
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''TBD: sostituire le sezioni con le informazioni sull'uso della periferica e del suo connettore''
 
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''Nell'esempio di seguito c'è la descrizione dell'interfaccia UART/console''
 
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=== Description  ===
 
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The CPU connector interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.
 
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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:{{{nome-som}}-EVB-CPU connector-connector.png|thumb|center|500px|CPU connector connector]]
 
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===Signals ===
 
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The following table describes the interface signals:
 
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{| class="wikitable"
 
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! latexfontsize="scriptsize"| Pin#
 
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! latexfontsize="scriptsize"| SOM Pin#
 
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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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|-
 
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|1,2,4,6,,7,8,10
 
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| -
 
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| N.A.
 
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| N.C.
 
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| Not connected
 
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|-
 
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| 3
 
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| J1.189
 
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| RS232_RX
 
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| Receive line
 
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|
 
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|-
 
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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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|-
 
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| 9
 
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| -
 
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| DGND
 
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| Ground
 
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|
 
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|}
 
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=== Device mapping ===
 
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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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==CPU connector ==
  
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# connect the DB9 adapter bracket to the J22 connector on the SBCX board
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J15 is the 260-pins SODIMM connector of the ORCA SOM.
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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
 
  
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In this SBC design the SOM is embedded in the carrier board so the connector is not actually usable but represents the SOM J1 connector.
  
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For a detailed description of the SOM pinout, please refer to the [[ORCA SOM/ORCA Hardware|ORCA SOM Hardware Manual]].
 
[[Category:ORCA SOM]]
 
[[Category:ORCA SOM]]

Revision as of 11:12, 6 September 2021

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History
Version Issue Date Notes
1.0.0 Sep 2021 First release


CPU connector[edit | edit source]

J15 is the 260-pins SODIMM connector of the ORCA SOM.

In this SBC design the SOM is embedded in the carrier board so the connector is not actually usable but represents the SOM J1 connector.

For a detailed description of the SOM pinout, please refer to the ORCA SOM Hardware Manual.

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