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

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<section begin="History" />
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<section begin=History/>
 
{| style="border-collapse:collapse; "
 
{| style="border-collapse:collapse; "
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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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|-  
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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" |2021/12/10
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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" |First release
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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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|-
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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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|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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|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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|}
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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/>
  
 
==HDMI interface ==
 
==HDMI 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 HDMI interface available on the Evaluation Kit at the connector J12, labelled as ''HDMI'' on the bottom.  
+
The HDMI interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.  
  
−
J12 is a Mini HDMI horizontal receptacle connector.
+
''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:ORCA-EVK-HDMI-connector.png|thumb|center|500px|HDMI connector]]
+
[[File:{{{nome-som}}-EVB-HDMI-connector.png|thumb|center|500px|HDMI connector]]
  
 
===Signals ===
 
===Signals ===
  
 
The following table describes the interface signals:
 
The following table describes the interface signals:
−
{| class="wikitable"
+
 
−
!Pin#
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{| class="wikitable"  
−
!SOM Pin#
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! latexfontsize="scriptsize"| Pin#
−
!Pin name
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! latexfontsize="scriptsize"| SOM Pin#
−
!Pin function
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! latexfontsize="scriptsize"| Pin name
−
!Pin Notes
+
! latexfontsize="scriptsize"| Pin function
 +
! latexfontsize="scriptsize"| Pin Notes
 
|-
 
|-
−
|2
+
|1,2,4,6,,7,8,10
−
|J15.98
+
| -
−
|HDMI_D2P
+
| N.A.
−
|TX pair 2 data +
+
| N.C.
−
|
+
| Not connected
−
|-
 
−
|3
 
−
|J15.96
 
−
|HDMI_D2N
 
−
|TX pair 2 data -
 
−
|
 
−
|-
 
−
|5
 
−
|J15.94
 
−
|HDMI_D1P
 
−
|TX pair 1 data +
 
−
|
 
−
|-
 
−
|6
 
−
|J15.92
 
−
|HDMI_D1N
 
−
|TX pair 1 data -
 
−
|
 
−
|-
 
−
|8
 
−
|J15.90
 
−
|HDMI_D0P
 
−
|TX pair 0 data +
 
−
|
 
−
|-
 
−
|9
 
−
|J15.88
 
−
|HDMI_D0N
 
−
|TX pair 0 data -
 
−
|
 
 
|-
 
|-
−
|11
+
| 3
−
|J15.86
+
| J1.189
−
|HDMI_CLKP
+
| RS232_RX
−
|Tx pair clock +
+
| Receive line
−
|
+
|  
 
|-
 
|-
−
|12
+
| 3
−
|J15.84
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| J1.187
−
|HDMI_CLKN
+
| RS232_TX
−
|Tx pair clock -
+
| Transmit line
−
|
+
|  
 
|-
 
|-
−
|14
+
| 9
−
|J15.74
 
−
|CEC
 
−
|Consumer Electric Control
 
−
|
 
−
|-
 
−
|15
 
−
|J15.76
 
−
|SCL
 
−
|I2C clock
 
−
|
 
−
|-
 
−
|16
 
−
|J15.78
 
−
|SDA
 
−
|I2C data
 
−
|
 
−
|-
 
−
|18
 
 
| -
 
| -
−
|5V
+
| DGND
−
| +5V power output
+
| Ground
−
|Internal 200mA fuse
+
|  
−
|-
 
−
|19
 
−
|J15.80/J15.104
 
−
|HPD/HEAC-
 
−
|Hotplug detection / ARC-HEC
 
−
|
 
−
|-
 
−
|1, 4, 7, 10, 13
 
−
| -
 
−
|DGND
 
−
|Ground
 
−
|
 
−
|-
 
−
|17
 
−
|J15.102
 
−
|HEAC+
 
−
|HDMI Ethernet Audio Return Channel
 
−
|
 
 
|}
 
|}
  
 
=== Device mapping ===
 
=== Device mapping ===
−
HDMI video is mapped to the corresponding device driver in Linux, depending on the device tree configuration. If this is the only video output, then the default value is mapped to <code>/dev/fb0</code>.
+
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.
  
 
=== Device usage ===
 
=== Device usage ===
  
−
The associated framebuffer device is accessed in Linux through the standard graphic access.
+
To connect to the debug serial port:
 +
 
 +
# 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]]
+
[[Category:ORCA SOM]]

Revision as of 13:50, 8 September 2021

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


HDMI 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 HDMI 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-HDMI-connector.png|thumb|center|500px|HDMI 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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