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

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==MIPI interface ==
 
==MIPI 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''
 
  
 
=== Description  ===
 
=== Description  ===
 +
The MIPI interface available on the Evaluation Kit at the connector ''J19''.
  
−
The MIPI interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.
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J19 is a 10 pin ZIF connector (0.5mm pitch, bottom contacts) for the DSI interface.
−
 
 
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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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{| class="wikitable"  
 
{| class="wikitable"  
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! latexfontsize="scriptsize"| Pin#
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! latexfontsize="scriptsize" | Pin#
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! latexfontsize="scriptsize"| SOM Pin#
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! latexfontsize="scriptsize" | SOM Pin#
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! latexfontsize="scriptsize"| Pin name
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! latexfontsize="scriptsize" | Pin name
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! latexfontsize="scriptsize"| Pin function
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! latexfontsize="scriptsize" | Pin function
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! latexfontsize="scriptsize"| Pin Notes
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! latexfontsize="scriptsize" | Pin Notes
 
|-
 
|-
−
|1,2,4,6,,7,8,10
+
|1
 
| -
 
| -
−
| N.A.
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| DGND
−
| N.C.
+
| Ground
−
| Not connected
+
|
 
|-
 
|-
−
| 3
+
| 2
−
| J1.189
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| J18.121
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| RS232_RX
+
| DSI_D1P
−
| Receive line
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| data lane1 +
 
|  
 
|  
 
|-
 
|-
 
| 3
 
| 3
−
| J1.187
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| J18.119
−
| RS232_TX
+
| DSI_D1N
−
| Transmit line
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| data lane1 -
 
|  
 
|  
 
|-
 
|-
−
| 9
+
| 4
 
| -
 
| -
 
| DGND
 
| DGND
 
| Ground
 
| Ground
 
|  
 
|  
 +
|-
 +
|5
 +
|J18.117
 +
|DSI_D0P
 +
|data lane0 +
 +
|
 +
|-
 +
|6
 +
|J18.115
 +
|DSI_D0N
 +
|data lane0 -
 +
|
 +
|-
 +
|7
 +
| -
 +
|DGND
 +
|Ground
 +
|
 +
|-
 +
|8
 +
|J18.113
 +
|DSI_CKP
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|clock +
 +
|
 +
|-
 +
|9
 +
|J18.111
 +
|DSI_CKN
 +
|clock -
 +
|
 +
|-
 +
|10
 +
| -
 +
|DGND
 +
|Ground
 +
|
 
|}
 
|}
  
 
=== 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.
+
The MIP CSI peripheral is mapped to the corresponding <code>/dev/video<X></code> device in Linux. The device mapping depends on the device tree configuration.
−
 
 
−
=== Device usage ===
 
−
 
 
−
To connect to the debug serial port:
 
−
 
 
−
# 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)
 
−
# start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1
 
  
 
----
 
----
  
 
[[Category:ETRA]]
 
[[Category:ETRA]]

Revision as of 15:30, 31 December 2020

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History
Version Issue Date Notes
1.0.0 Dec 2020 First Release


MIPI interface[edit | edit source]

Description[edit | edit source]

The MIPI interface available on the Evaluation Kit at the connector J19.

J19 is a 10 pin ZIF connector (0.5mm pitch, bottom contacts) for the DSI interface.


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

Signals[edit | edit source]

The following table describes the interface signals:

Pin# SOM Pin# Pin name Pin function Pin Notes
1 - DGND Ground
2 J18.121 DSI_D1P data lane1 +
3 J18.119 DSI_D1N data lane1 -
4 - DGND Ground
5 J18.117 DSI_D0P data lane0 +
6 J18.115 DSI_D0N data lane0 -
7 - DGND Ground
8 J18.113 DSI_CKP clock +
9 J18.111 DSI_CKN clock -
10 - DGND Ground

Device mapping[edit | edit source]

The MIP CSI peripheral is mapped to the corresponding /dev/video<X> device in Linux. The device mapping depends on the device tree configuration.

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