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

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<section begin="Body" />
  
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==Ethernet interface ==
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==Ethernet interfaces ==
  
−
''TBD: sostituire le sezioni con le informazioni sull'uso della periferica e del suo connettore''
+
The Evaluation Kit features two Gigabit Ethernet interfaces:
−
''Nell'esempio di seguito c'è la descrizione dell'interfaccia UART/console''
+
* ETH0 on J10 (labelled as ''Ethernet 1'')
 +
* ETH1 on J38 (labelled as ''Ethernet 2'')
 +
** this interface also features the [https://en.wikipedia.org/wiki/Time-Sensitive_Networking TSN] functionality
  
 
=== Description  ===
 
=== Description  ===
  
−
The Ethernet interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.  
+
The Ethernet interfaces are available on the Evaluation Kit at the connectors J10 and J38. Primary interface is on J10.  
  
−
''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).
+
J10 and J38 are a RJ45 shielded connectors with dual led. J10 is connected to the SoM Ethernet PHY, J38 is connected to the Carrier Ethernet PHY
  
  
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===Signals ===
 
===Signals ===
  
−
The following table describes the interface signals:
+
The following table describes the interfaces signals:
−
 
+
* J10
 
{| class="wikitable"  
 
{| class="wikitable"  
−
! latexfontsize="scriptsize"| Pin#
+
! latexfontsize="scriptsize" | Pin#
−
! latexfontsize="scriptsize"| SOM Pin#
+
! latexfontsize="scriptsize" | Pin name
−
! latexfontsize="scriptsize"| Pin name
+
! latexfontsize="scriptsize" | Pin Notes
−
! latexfontsize="scriptsize"| Pin function
 
−
! latexfontsize="scriptsize"| Pin Notes
 
 
|-
 
|-
−
|1,2,4,6,,7,8,10
+
|1
−
| -
+
| ETH0_TXRX1_P
−
| N.A.
+
|
−
| N.C.
+
|-
−
| Not connected
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| 2
 +
| ETH0_TXRX1_N
 +
|  
 
|-
 
|-
 
| 3
 
| 3
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| J1.189
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| ETH0_TXRX2_P
−
| RS232_RX
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|  
−
| Receive line
+
|-
 +
| 4
 +
| ETH0_TXRX3_P
 +
|
 +
|-
 +
|5
 +
|ETH0_TXRX3_N
 +
|
 +
|-
 +
|6
 +
|ETH0_TXRX2_N
 +
|
 +
|-
 +
|7
 +
|ETH0_TXRX4_P
 +
|
 +
|-
 +
|8
 +
|ETH0_TXRX4_N
 +
|
 +
|-
 +
|9
 +
|ETH0_LED_ACT
 +
|ETH0 has active low signals
 +
|-
 +
|11
 +
|ETH0_LED_LINK
 +
|ETH0 has active low signals
 +
|}
 +
* J38
 +
{| class="wikitable"
 +
! latexfontsize="scriptsize" | Pin#
 +
! latexfontsize="scriptsize" | Pin name
 +
! latexfontsize="scriptsize" | Pin Notes
 +
|-
 +
|1
 +
| ETH1_TXRX1_P
 +
|
 +
|-
 +
| 2
 +
| ETH1_TXRX1_N
 
|  
 
|  
 
|-
 
|-
 
| 3
 
| 3
−
| J1.187
+
| ETH1_TXRX2_P
−
| RS232_TX
 
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| Transmit line
 
 
|  
 
|  
 
|-
 
|-
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| 9
+
| 4
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| -
+
| ETH1_TXRX3_P
−
| DGND
 
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| Ground
 
 
|  
 
|  
 +
|-
 +
|5
 +
|ETH1_TXRX3_N
 +
|
 +
|-
 +
|6
 +
|ETH1_TXRX2_N
 +
|
 +
|-
 +
|7
 +
|ETH1_TXRX4_P
 +
|
 +
|-
 +
|8
 +
|ETH1_TXRX4_N
 +
|
 +
|-
 +
|10
 +
|ETH1_LED_ACT
 +
|ETH1 has active high signals
 +
|-
 +
|12
 +
|ETH1_LED_LINK
 +
|ETH1 has active high signals
 
|}
 
|}
  
 
=== Device mapping ===
 
=== 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.
+
The network interfaces mapped as follows:
 +
* J10 is <code>eth0</code> device in Linux.
 +
* J38 is <code>eth1</code> device in Linux.
  
 
=== Device usage ===
 
=== Device usage ===
  
−
To connect to the debug serial port:
+
The peripherals use the standard kernel interface and network protocol stack.
−
 
 
−
# connect the DB9 adapter bracket 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
 
  
 
----
 
----
  
 
[[Category:ORCA SOM]]
 
[[Category:ORCA SOM]]

Revision as of 14:34, 6 September 2021

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History
Version Issue Date Notes
1.0.0 Sep 2021 First release


Ethernet interfaces[edit | edit source]

The Evaluation Kit features two Gigabit Ethernet interfaces:

  • ETH0 on J10 (labelled as Ethernet 1)
  • ETH1 on J38 (labelled as Ethernet 2)
    • this interface also features the TSN functionality

Description[edit | edit source]

The Ethernet interfaces are available on the Evaluation Kit at the connectors J10 and J38. Primary interface is on J10.

J10 and J38 are a RJ45 shielded connectors with dual led. J10 is connected to the SoM Ethernet PHY, J38 is connected to the Carrier Ethernet PHY


[[File:{Template:Nome-som-EVB-Ethernet-connector.png|thumb|center|500px|Ethernet connector]]

Signals[edit | edit source]

The following table describes the interfaces signals:

  • J10
Pin# Pin name Pin Notes
1 ETH0_TXRX1_P
2 ETH0_TXRX1_N
3 ETH0_TXRX2_P
4 ETH0_TXRX3_P
5 ETH0_TXRX3_N
6 ETH0_TXRX2_N
7 ETH0_TXRX4_P
8 ETH0_TXRX4_N
9 ETH0_LED_ACT ETH0 has active low signals
11 ETH0_LED_LINK ETH0 has active low signals
  • J38
Pin# Pin name Pin Notes
1 ETH1_TXRX1_P
2 ETH1_TXRX1_N
3 ETH1_TXRX2_P
4 ETH1_TXRX3_P
5 ETH1_TXRX3_N
6 ETH1_TXRX2_N
7 ETH1_TXRX4_P
8 ETH1_TXRX4_N
10 ETH1_LED_ACT ETH1 has active high signals
12 ETH1_LED_LINK ETH1 has active high signals

Device mapping[edit | edit source]

The network interfaces mapped as follows:

  • J10 is eth0 device in Linux.
  • J38 is eth1 device in Linux.

Device usage[edit | edit source]

The peripherals use the standard kernel interface and network protocol stack.

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