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

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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:#edf8fb; padding:5px; color:#000000" |2021/12/10
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<section begin="Body" />
  
 
==Power Supply interface ==
 
==Power Supply interface ==
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The Evaluation Kit is powered by one of the USB Type-C connectors. To properly power the system the wall adapter must support the [https://en.wikipedia.org/wiki/USB_hardware#USB_Power_Delivery power delivery] protocol.
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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 Power Supply interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.
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The Power Supply interface available on the Evaluation Kit at the connector ''J3''  
  
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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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J3 is a USB Type-C connector for USB3 data transfer and board supply,  
  
  
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[[File:{{{nome-som}}-EVB-Power Supply-connector.png|thumb|center|500px|Power Supply connector]]
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[[File:ORCA-EVK-Power Supply-connector.png|thumb|center|500px|Power Supply connector]]
  
 
===Signals ===
 
===Signals ===
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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" | 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
 
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|-
 
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|1,2,4,6,,7,8,10
 
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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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|A4, A9, B4, B9
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| J1.189
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| VBUS1
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| RS232_RX
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| Board supply
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| Receive line
 
 
|  
 
|  
 
|-
 
|-
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| 3
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|A1, A12, B1, B12
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| J1.187
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| GND
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| RS232_TX
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| Ground
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| Transmit line
 
 
|  
 
|  
 
|-
 
|-
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| 9
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| A6, A7, B6, B7, A2, A3, B10, B11, B2, B3, A10, A11, A5, B5, A8, B8
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| -
 
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| DGND
 
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| Ground
 
 
|  
 
|  
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| USB signals
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| See [[ORCA SOM/ORCA Evaluation Kit/Interfaces and Connectors/USB ports|USB ports]]
 
|}
 
|}
  
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=== Device mapping ===
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=== Power LED ===
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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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DL2 is a green LED (placed near the reset button) that shows the status of the power input. This LED is ON when a valid power supply is present and the system is out of reset.
  
 
=== Device usage ===
 
=== Device usage ===
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The USB-C PD protocol starts providing 5V to the system, this voltage is enough to boot the CPU and execute the bootloader.
 +
 +
The bootloader starts the PD handshake with the wall adapter and chose the input rail voltage between 5V, 9V, 12V, 15V or 20V.
 +
 +
By default the Evaluation Kit sets the input to 12V for LCD backlight compatibility, see the [[ORCA SOM/ORCA Evaluation Kit/Interfaces and Connectors/LVDS|LVDS section]] for more details.
 +
 +
=== Alternate supply ===
 +
An auxiliary connector is present on the board (not mounted by default) to power the system with a standard power supply.
 +
 +
This connector is meant for developing purpose (eg when the SW is not already able to handshake a valid PD profile) and cannot be mounted for some Evaluation Kit models.
 +
 +
==== Description ====
 +
Power can be provided through the J20 connector. Power voltage range is +[12-24 V].
 +
 +
J20 is a two pins MC 1,5/2-G-3,81 Phoenix connector.
 +
 +
 +
[[File:ORCA-EVK-J20-Power_Supply-connector.png|thumb|center|500px|J20 Power Supply connector]]
 +
 +
====Signals ====
  
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To connect to the debug serial port:
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The following table describes the interface signals:
  
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# connect the DB9 adapter bracket to the J22 connector on the SBCX board
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{| class="wikitable"
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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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! latexfontsize="scriptsize" | Pin#
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# start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1
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! latexfontsize="scriptsize" | Pin name
 +
! latexfontsize="scriptsize" | Pin function
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! latexfontsize="scriptsize" | Pin Notes
 +
|-
 +
|1
 +
| VIN_AUX
 +
| Board supply
 +
| +[12-24 V]
 +
|-
 +
|2
 +
| GND
 +
| Ground
 +
|
 +
|}
  
 
----
 
----
  
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[[Category:ORCA SOM]]
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[[Category:ORCA]]

Latest revision as of 18:49, 29 December 2023

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History
Issue Date Notes
2021/12/10 First release


Power Supply interface[edit | edit source]

The Evaluation Kit is powered by one of the USB Type-C connectors. To properly power the system the wall adapter must support the power delivery protocol.

Description[edit | edit source]

The Power Supply interface available on the Evaluation Kit at the connector J3

J3 is a USB Type-C connector for USB3 data transfer and board supply,


Power Supply connector

Signals[edit | edit source]

The following table describes the interface signals:

Pin# Pin name Pin function Pin Notes
A4, A9, B4, B9 VBUS1 Board supply
A1, A12, B1, B12 GND Ground
A6, A7, B6, B7, A2, A3, B10, B11, B2, B3, A10, A11, A5, B5, A8, B8 USB signals See USB ports

Power LED[edit | edit source]

DL2 is a green LED (placed near the reset button) that shows the status of the power input. This LED is ON when a valid power supply is present and the system is out of reset.

Device usage[edit | edit source]

The USB-C PD protocol starts providing 5V to the system, this voltage is enough to boot the CPU and execute the bootloader.

The bootloader starts the PD handshake with the wall adapter and chose the input rail voltage between 5V, 9V, 12V, 15V or 20V.

By default the Evaluation Kit sets the input to 12V for LCD backlight compatibility, see the LVDS section for more details.

Alternate supply[edit | edit source]

An auxiliary connector is present on the board (not mounted by default) to power the system with a standard power supply.

This connector is meant for developing purpose (eg when the SW is not already able to handshake a valid PD profile) and cannot be mounted for some Evaluation Kit models.

Description[edit | edit source]

Power can be provided through the J20 connector. Power voltage range is +[12-24 V].

J20 is a two pins MC 1,5/2-G-3,81 Phoenix connector.


J20 Power Supply connector

Signals[edit | edit source]

The following table describes the interface signals:

Pin# Pin name Pin function Pin Notes
1 VIN_AUX Board supply +[12-24 V]
2 GND Ground
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