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

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<section begin=History/>
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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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!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" |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"|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:#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"|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" |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"|TBD
 
 
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<section end="History" />
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<section begin=Body/>
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<section begin="Body" />
  
 
==Audio interface ==
 
==Audio interface ==
  
−
''TBD: sostituire le sezioni con le informazioni sull'uso della periferica e del suo connettore''
+
There is no directly available Audio interface on the Evaluation Kit, two SAI and one SPDIF full duplex interfaces are available on the expansion connector.
−
''Nell'esempio di seguito c'è la descrizione dell'interfaccia UART/console''
 
  
 
=== Description  ===
 
=== Description  ===
  
−
The Audio interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.  
+
The SAI and SPDIF interfaces are available on the Evaluation Kit at the connector J8.  
  
−
''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).
+
J8 is a 20x2x2.54mm pin header expansion connector that delivers many interfaces unused on board.
  
  
−
[[File:{{{nome-som}}-EVB-Audio-connector.png|thumb|center|500px|Audio connector]]
+
[[File:ORCA-EVK-J8-connector.png|thumb|center|500px|Audio connector (on J8)]]
  
 
===Signals ===
 
===Signals ===
  
−
The following table describes the interface signals:
+
The following table describes the interfaces signals:
  
 
{| class="wikitable"  
 
{| class="wikitable"  
−
! latexfontsize="scriptsize"| Pin#
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! latexfontsize="scriptsize" | Pin#
−
! latexfontsize="scriptsize"| SOM Pin#
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! latexfontsize="scriptsize" | SOM Pin#
−
! latexfontsize="scriptsize"| Pin name
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! latexfontsize="scriptsize" | Pin name
−
! latexfontsize="scriptsize"| Pin function
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! latexfontsize="scriptsize" | Pin function
−
! latexfontsize="scriptsize"| Pin Notes
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! latexfontsize="scriptsize" | Pin Notes
 +
|-
 +
|1, 17
 +
| -
 +
|3V3_CB
 +
|Power output for transceiver supply
 +
|BOARD_PGOOD driven rail
 
|-
 
|-
−
|1,2,4,6,,7,8,10
+
|2, 4
 
| -
 
| -
−
| N.A.
+
|5V_VIN
−
| N.C.
+
|Power output for transceiver supply
−
| Not connected
+
|Always ON rail
 
|-
 
|-
−
| 3
+
|6, 9, 14, 20,
−
| J1.189
+
25, 30, 34, 39
−
| RS232_RX
+
| -
−
| Receive line
+
|DGND
 +
|Ground
 +
|
 +
|-
 +
|7
 +
|J15.
 +
| SAI2_TXFS
 +
|Transmit Frame Sync
 
|  
 
|  
 
|-
 
|-
−
| 3
+
|8
−
| J1.187
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|J15.
−
| RS232_TX
+
|SAI2_RXFS
−
| Transmit line
+
|Receive Frame Sync
 +
|
 +
|-
 +
|10
 +
|J15.
 +
| SAI2_RXC
 +
|Receive Bit Clock
 
|  
 
|  
 
|-
 
|-
−
| 9
+
|11
−
| -
+
|J15.
−
| DGND
+
|SAI2_RXD0
−
| Ground
+
|Receive Data 0
 
|  
 
|  
 +
|-
 +
|12
 +
|J15.
 +
|SAI2_TXC
 +
|Transmit Bit Clock
 +
|
 +
|-
 +
|16
 +
|J15.
 +
|SAI2_TXD0
 +
|Transmit Data 0
 +
|
 +
|-
 +
|18
 +
|J15.
 +
|SAI2_MCLK
 +
|Audio Master Clock
 +
|
 +
|-
 +
|13
 +
|J15.
 +
|SPDIF_RX
 +
|SPDIF Receiver
 +
|
 +
|-
 +
|15
 +
|J15.
 +
|SPDIF_TX
 +
|SPDIF Transmitter
 +
|
 +
|-
 +
|22
 +
|J15.
 +
|SAI5_MCLK
 +
|Audio Master Clock
 +
|
 +
|-
 +
|32
 +
|J15.
 +
|SAI5_RXFS
 +
|Receive Frame Sync
 +
|
 +
|-
 +
|35
 +
|J15.
 +
|SAI5_RXD3
 +
|Receive Data 3
 +
|
 +
|-
 +
|36
 +
|J15.
 +
|SAI5_RXD2
 +
|Receive Data 2
 +
|
 +
|-
 +
|37
 +
|J15.
 +
|SAI5_RXD1
 +
|Receive Data 1
 +
|
 +
|-
 +
|38
 +
|J15.
 +
|SAI5_RXD0
 +
|Receive Data 0
 +
|
 +
|-
 +
|40
 +
|J15.
 +
|SAI5_RXC
 +
|Receive Bit Clock
 +
|
 
|}
 
|}
 +
Please note that all the signals are 0-3.3V level.
  
 
=== 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 device mapping depends on the used device and the device tree configuration.
  
 
=== Device usage ===
 
=== Device usage ===
  
−
To connect to the debug serial port:
+
The associated device can be accessed in Linux by standard stacks, such as ''pulse audio'' or ''alsalib''.
−
 
 
−
# 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]]

Latest revision as of 18:54, 29 December 2023

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History
Issue Date Notes
2021/12/10 First release


Audio interface[edit | edit source]

There is no directly available Audio interface on the Evaluation Kit, two SAI and one SPDIF full duplex interfaces are available on the expansion connector.

Description[edit | edit source]

The SAI and SPDIF interfaces are available on the Evaluation Kit at the connector J8.

J8 is a 20x2x2.54mm pin header expansion connector that delivers many interfaces unused on board.


Audio connector (on J8)

Signals[edit | edit source]

The following table describes the interfaces signals:

Pin# SOM Pin# Pin name Pin function Pin Notes
1, 17 - 3V3_CB Power output for transceiver supply BOARD_PGOOD driven rail
2, 4 - 5V_VIN Power output for transceiver supply Always ON rail
6, 9, 14, 20,

25, 30, 34, 39

- DGND Ground
7 J15. SAI2_TXFS Transmit Frame Sync
8 J15. SAI2_RXFS Receive Frame Sync
10 J15. SAI2_RXC Receive Bit Clock
11 J15. SAI2_RXD0 Receive Data 0
12 J15. SAI2_TXC Transmit Bit Clock
16 J15. SAI2_TXD0 Transmit Data 0
18 J15. SAI2_MCLK Audio Master Clock
13 J15. SPDIF_RX SPDIF Receiver
15 J15. SPDIF_TX SPDIF Transmitter
22 J15. SAI5_MCLK Audio Master Clock
32 J15. SAI5_RXFS Receive Frame Sync
35 J15. SAI5_RXD3 Receive Data 3
36 J15. SAI5_RXD2 Receive Data 2
37 J15. SAI5_RXD1 Receive Data 1
38 J15. SAI5_RXD0 Receive Data 0
40 J15. SAI5_RXC Receive Bit Clock

Please note that all the signals are 0-3.3V level.

Device mapping[edit | edit source]

The device mapping depends on the used device and the device tree configuration.

Device usage[edit | edit source]

The associated device can be accessed in Linux by standard stacks, such as pulse audio or alsalib.

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