Difference between revisions of "AXEL ULite SOM/AXEL ULite Evaluation Kit/Interfaces and Connectors/Ethernet"

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==Ethernet interface ==
 
==Ethernet 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''
 
  
 
=== Description  ===
 
=== Description  ===
  
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The Ethernet interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.
+
J19 is a standard RJ45 connectors connected to the SOM integrated ethernet controller and PHY.
−
 
 
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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-Ethernet-connector.png|thumb|center|500px|Ethernet connector]]
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[[File:AXEL_ULite-EVB-Ethernet-connector.png|thumb|center|500px|Ethernet connector]]
  
 
===Signals ===
 
===Signals ===
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! latexfontsize="scriptsize"| Pin Notes
 
! latexfontsize="scriptsize"| Pin Notes
 
|-
 
|-
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|1,2,4,6,,7,8,10
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| 11 || J1.19 || ETH0_TXRX0_P || Transmit and receive pair 0 data +||  
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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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| 3
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| 10 || J1.21 || ETH0_TXRX0_M || Transmit and receive pair 0 data -||  
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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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| 3
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| 4 || J1.23 || ETH0_TXRX1_P || Transmit and receive pair 1 data +||  
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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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| 5 || J1.25 || ETH0_TXRX1_M || Transmit and receive pair 1 data -||
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| -
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|-
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| DGND
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| 20 || J1.13 || 3V3_ETH_LED1 || Eth link/activity led||  
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| Ground
 
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|  
 
 
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|}
  
 
=== Device mapping ===
 
=== 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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The network interface mapped at <code>eth0</code> device in Linux.  
  
 
=== Device usage ===
 
=== Device usage ===
  
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To connect to the debug serial port:
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The peripheral is used the standard kernel interface and network protocol stack.
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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:AXEL ULite]]
 
[[Category:AXEL ULite]]

Revision as of 08:16, 19 July 2021

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History
Version Issue Date Notes
1.0.0 Jul 2021 First DESK release


Ethernet interface[edit | edit source]

Description[edit | edit source]

J19 is a standard RJ45 connectors connected to the SOM integrated ethernet controller and PHY.


Ethernet connector

Signals[edit | edit source]

The following table describes the interface signals:

Pin# SOM Pin# Pin name Pin function Pin Notes
11 J1.19 ETH0_TXRX0_P Transmit and receive pair 0 data +
10 J1.21 ETH0_TXRX0_M Transmit and receive pair 0 data -
4 J1.23 ETH0_TXRX1_P Transmit and receive pair 1 data +
5 J1.25 ETH0_TXRX1_M Transmit and receive pair 1 data -
20 J1.13 3V3_ETH_LED1 Eth link/activity led

Device mapping[edit | edit source]

The network interface mapped at eth0 device in Linux.

Device usage[edit | edit source]

The peripheral is used the standard kernel interface and network protocol stack.

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