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

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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" |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"|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"|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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|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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<section end="History" />
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<section end=History/>
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<section begin="Body" />
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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 ''J3''  
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The Power Supply interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.
  
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J3 is a USB Type-C connector for USB3 data transfer and board supply,
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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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[[File:ORCA-EVK-Power Supply-connector.png|thumb|center|500px|Power Supply connector]]
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[[File:{{{nome-som}}-EVB-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" | Pin name
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! latexfontsize="scriptsize"| SOM Pin#
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! latexfontsize="scriptsize" | Pin function
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! latexfontsize="scriptsize"| Pin name
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! latexfontsize="scriptsize" | Pin Notes
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! latexfontsize="scriptsize"| Pin function
 +
! latexfontsize="scriptsize"| Pin Notes
 +
|-
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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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|A4, A9, B4, B9
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| 3
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| VBUS1
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| J1.189
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| Board supply
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| RS232_RX
 +
| Receive line
 
|  
 
|  
 
|-
 
|-
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|A1, A12, B1, B12
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| 3
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| GND
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| J1.187
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| Ground
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| RS232_TX
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| Transmit line
 
|  
 
|  
 
|-
 
|-
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| A6, A7, B6, B7, A2, A3, B10, B11, B2, B3, A10, A11, A5, B5, A8, B8
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| 9
 +
| -
 +
| 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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=== Power LED ===
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=== Device mapping ===
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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.
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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.
  
 
=== 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.
 
−
 
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The bootloader starts the PD handshake with the wall adapter and chose the input rail voltage between 5V, 9V, 12V, 15V or 20V.
 
−
 
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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.
 
−
 
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=== Alternate supply ===
 
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An auxiliary connector is present on the board (not mounted by default) to power the system with a standard power supply.
 
−
 
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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.
 
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==== Description ====
 
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Power can be provided through the J20 connector. Power voltage range is +[12-24 V].
 
−
 
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J20 is a two pins MC 1,5/2-G-3,81 Phoenix connector.
 
−
 
−
 
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[[File:ORCA-EVK-J20-Power_Supply-connector.png|thumb|center|500px|J20 Power Supply connector]]
 
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====Signals ====
 
  
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The following table describes the interface signals:
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To connect to the debug serial port:
  
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{| class="wikitable"
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# connect the DB9 adapter bracket to the J22 connector on the SBCX board
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! latexfontsize="scriptsize" | Pin#
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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 name
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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 function
 
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! latexfontsize="scriptsize" | Pin Notes
 
−
|-
 
−
|1
 
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| VIN_AUX
 
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| Board supply
 
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| +[12-24 V]
 
−
|-
 
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|2
 
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| GND
 
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| Ground
 
−
|
 
−
|}
 
  
 
----
 
----
  
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[[Category:ORCA]]
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[[Category:ORCA SOM]]

Revision as of 10:12, 6 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
... ... ...


Power Supply 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 Power Supply 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-Power Supply-connector.png|thumb|center|500px|Power Supply 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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