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

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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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! 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"|[TBD_link 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"|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/>
  
 
==GPIOs interface ==
 
==GPIOs 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 GPIOs interface is available on the Evaluation Kit at the connector J8.  
+
The GPIOs interface available on the Evaluation Kit at the connector ''TBD:Jxxx''.  
  
−
J8 is a 20x2x2.54mm pin strip header 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-J8-connector.png|thumb|center|500px|GPIOs connector (J8)]]
+
[[File:{{{nome-som}}-EVB-GPIOs-connector.png|thumb|center|500px|GPIOs connector]]
  
 
===Signals ===
 
===Signals ===
  
 
The following table describes the interface signals:
 
The following table describes the interface signals:
−
{| class="wikitable"
+
 
−
! latexfontsize="scriptsize" |Pin#
+
{| class="wikitable"  
−
! latexfontsize="scriptsize" |SOM Pin#
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! latexfontsize="scriptsize"| Pin#
−
! latexfontsize="scriptsize" |Pin name
+
! latexfontsize="scriptsize"| SOM Pin#
−
! latexfontsize="scriptsize" |Pin function
+
! latexfontsize="scriptsize"| Pin name
−
! latexfontsize="scriptsize" |Pin Notes
+
! latexfontsize="scriptsize"| Pin function
 +
! latexfontsize="scriptsize"| Pin Notes
 
|-
 
|-
−
|7
+
|1,2,4,6,,7,8,10
−
|J15.150
+
| -
−
|SAI2_TXFS
+
| N.A.
−
|GPIO4_IO24
+
| N.C.
−
|
+
| Not connected
−
|-
 
−
|8
 
−
|J15.144
 
−
|SAI2_RXFS
 
−
|GPIO4_IO21
 
−
|
 
−
|-
 
−
|10
 
−
|J15.140
 
−
|SAI2_RXC
 
−
|GPIO4_IO22
 
−
|
 
−
|-
 
−
|11
 
−
|J15.142
 
−
|SAI2_RXD0
 
−
|GPIO4_IO23
 
−
|
 
−
|-
 
−
|12
 
−
|J15.146
 
−
|SAI2_TXC
 
−
|GPIO4_IO25
 
−
|
 
−
|-
 
−
|13
 
−
|J15.132
 
−
|SPDIF_RX
 
−
|GPIO5_IO04
 
−
|
 
−
|-
 
−
|15
 
−
|J15.134
 
−
|SPDIF_TX
 
−
|GPIO5_IO03
 
−
|
 
−
|-
 
−
|16
 
−
|J15.148
 
−
|SAI2_TXD0
 
−
|GPIO4_IO26
 
−
|
 
−
|-
 
−
|18
 
−
|J15.138
 
−
|SAI2_MCLK
 
−
|GPIO4_IO27
 
−
|
 
−
|-
 
−
|19
 
−
|J15.122
 
−
|ECSPI2_MOSI
 
−
|GPIO5_IO11
 
−
|
 
−
|-
 
−
|21
 
−
|J15.120
 
−
|ECSPI2_MISO
 
−
|GPIO5_IO12
 
−
|
 
−
|-
 
−
|22
 
−
|J15.166
 
−
|SAI5_MCLK
 
−
|GPIO3_IO25
 
−
|
 
−
|-
 
−
|23
 
−
|J15.124
 
−
|ECSPI2_SCLK
 
−
|GPIO5_IO10
 
−
|
 
−
|-
 
−
|24
 
−
|J15.126
 
−
|ECSPI2_SS0
 
−
|GPIO5_IO13
 
−
|
 
 
|-
 
|-
−
|26
+
| 3
−
|J15.130
+
| J1.189
−
|SPDIF_EXT_CLK
+
| RS232_RX
−
|GPIO5_IO05
+
| Receive line
−
|
+
|  
 
|-
 
|-
−
|27
+
| 3
−
|J15.248
+
| J1.187
−
|UART2_RXD
+
| RS232_TX
−
|GPIO5_IO24
+
| Transmit line
−
|
+
|  
 
|-
 
|-
−
|28
+
| 9
−
|J15.152
 
−
|SAI3_MCLK
 
−
|GPIO5_IO02
 
−
|
 
−
|-
 
−
|29
 
−
|J15.250
 
−
|UART2_TXD
 
−
|GPIO5_IO25
 
−
|
 
−
|-
 
−
|31
 
−
|J15.256
 
−
|UART4_RXD
 
−
|GPIO5_IO28
 
−
|
 
−
|-
 
−
|32
 
−
|J15.178
 
−
|SAI5_RXFS
 
−
|GPIO3_IO19
 
−
|
 
−
|-
 
−
|33
 
−
|J15.258
 
−
|UART4_TXD
 
−
|GPIO5_IO29
 
−
|
 
−
|-
 
−
|35
 
−
|J15.176
 
−
|SAI5_RXD3
 
−
|GPIO3_IO24
 
−
|
 
−
|-
 
−
|36
 
−
|J15.174
 
−
|SAI5_RXD2
 
−
|GPIO3_IO23
 
−
|
 
−
|-
 
−
|37
 
−
|J15.172
 
−
|SAI5_RXD1
 
−
|GPIO3_IO22
 
−
|
 
−
|-
 
−
|38
 
−
|J15.170
 
−
|SAI5_RXD0
 
−
|GPIO3_IO21
 
−
|
 
−
|-
 
−
|40
 
−
|J15.168
 
−
|SAI5_RXC
 
−
|GPIO3_IO20
 
−
|
 
−
|-
 
−
|1, 17
 
−
| -
 
−
|3V3_CB
 
−
| +3.3V
 
−
|BOARD_PGOOD driven rail
 
−
|-
 
−
|2, 4
 
−
| -
 
−
|5V_VIN
 
−
| +5V
 
−
|Always powered
 
−
|-
 
−
|6, 9, 14, 20, 25, 30, 34, 39
 
 
| -
 
| -
−
|DGND
+
| DGND
−
|Ground
+
| Ground
−
|
+
|  
 
|}
 
|}
−
All the GPIO signals are 0-3.3V level.
 
  
 
=== Device mapping ===
 
=== Device mapping ===
−
GPIOs are mapped into banks each of which contains 32 pins. They are named as GPIO<bank>_IO<pin>
+
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.
  
−
Each pin can be addressed with an incremental number, calculated as follows: GPIO = 32 x (<bank> - 1) + <pin>
+
=== Device usage ===
  
−
=== Device usage ===
+
To connect to the debug serial port:
  
−
Under Linux the GPIOs can be manipulated su sysfs export or with the gpio tools.
+
# 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 12:48, 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
... ... ...


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