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

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! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History
 
! 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
 
! 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
 
! 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
 
! 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
 
! 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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| 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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==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 ===
Line 36: Line 49:
 
|-
 
|-
 
|7
 
|7
−
|J15.150
+
|
−
|SAI2_TXFS
+
|
−
|GPIO4_IO24
+
|
 
|
 
|
 
|-
 
|-
 
|8
 
|8
−
|J15.144
+
|
−
|SAI2_RXFS
+
|
−
|GPIO4_IO21
+
|
 
|
 
|
 
|-
 
|-
 
|10
 
|10
−
|J15.140
+
|
−
|SAI2_RXC
+
|
−
|GPIO4_IO22
+
|
 
|
 
|
 
|-
 
|-
 
|11
 
|11
−
|J15.142
+
|
−
|SAI2_RXD0
+
|
−
|GPIO4_IO23
+
|
 
|
 
|
 
|-
 
|-
 
|12
 
|12
−
|J15.146
+
|
−
|SAI2_TXC
+
|
−
|GPIO4_IO25
+
|
 
|
 
|
 
|-
 
|-
 
|13
 
|13
−
|J15.132
+
|
−
|SPDIF_RX
+
|
−
|GPIO5_IO04
+
|
 
|
 
|
 
|-
 
|-
 
|15
 
|15
−
|J15.134
+
|
−
|SPDIF_TX
+
|
−
|GPIO5_IO03
+
|
 
|
 
|
 
|-
 
|-
 
|16
 
|16
−
|J15.148
+
|
−
|SAI2_TXD0
+
|
−
|GPIO4_IO26
+
|
 
|
 
|
 
|-
 
|-
 
|18
 
|18
−
|J15.138
+
|
−
|SAI2_MCLK
+
|
−
|GPIO4_IO27
+
|
 
|
 
|
 
|-
 
|-
 
|19
 
|19
−
|J15.122
+
|
 
|ECSPI2_MOSI
 
|ECSPI2_MOSI
−
|GPIO5_IO11
+
|I2C3_SDA
 
|
 
|
 
|-
 
|-
 
|21
 
|21
−
|J15.120
+
|
 
|ECSPI2_MISO
 
|ECSPI2_MISO
−
|GPIO5_IO12
+
|I2C4_SCL
 
|
 
|
 
|-
 
|-
 
|22
 
|22
−
|J15.166
+
|
 
|SAI5_MCLK
 
|SAI5_MCLK
−
|GPIO3_IO25
+
|I2C5_SDA
 
|
 
|
 
|-
 
|-
 
|23
 
|23
−
|J15.124
+
|
 
|ECSPI2_SCLK
 
|ECSPI2_SCLK
−
|GPIO5_IO10
+
|I2C3_SCL
 
|
 
|
 
|-
 
|-
 
|24
 
|24
−
|J15.126
+
|
 
|ECSPI2_SS0
 
|ECSPI2_SS0
−
|GPIO5_IO13
+
|I2C4_SDA
 
|
 
|
 
|-
 
|-
 
|26
 
|26
−
|J15.130
+
|
−
|SPDIF_EXT_CLK
+
|
−
|GPIO5_IO05
+
|
 
|
 
|
 
|-
 
|-
 
|27
 
|27
−
|J15.248
+
|
−
|UART2_RXD
+
|
−
|GPIO5_IO24
+
|
 
|
 
|
 
|-
 
|-
 
|28
 
|28
−
|J15.152
+
|
−
|SAI3_MCLK
+
|
−
|GPIO5_IO02
+
|
 
|
 
|
 
|-
 
|-
 
|29
 
|29
−
|J15.250
+
|
−
|UART2_TXD
+
|
−
|GPIO5_IO25
+
|
 
|
 
|
 
|-
 
|-
 
|31
 
|31
−
|J15.256
+
|
−
|UART4_RXD
+
|
−
|GPIO5_IO28
+
|
 
|
 
|
 
|-
 
|-
 
|32
 
|32
−
|J15.178
+
|
 
|SAI5_RXFS
 
|SAI5_RXFS
−
|GPIO3_IO19
+
|I2C6_SCL
 
|
 
|
 
|-
 
|-
 
|33
 
|33
−
|J15.258
+
|
−
|UART4_TXD
+
|
−
|GPIO5_IO29
+
|
 
|
 
|
 
|-
 
|-
 
|35
 
|35
−
|J15.176
+
|
−
|SAI5_RXD3
+
|
−
|GPIO3_IO24
+
|
 
|
 
|
 
|-
 
|-
 
|36
 
|36
−
|J15.174
+
|
−
|SAI5_RXD2
+
|
−
|GPIO3_IO23
+
|
 
|
 
|
 
|-
 
|-
 
|37
 
|37
−
|J15.172
+
|
−
|SAI5_RXD1
+
|
−
|GPIO3_IO22
+
|
 
|
 
|
 
|-
 
|-
 
|38
 
|38
−
|J15.170
+
|
 
|SAI5_RXD0
 
|SAI5_RXD0
−
|GPIO3_IO21
+
|I2C5_SCL
 
|
 
|
 
|-
 
|-
 
|40
 
|40
−
|J15.168
+
|
 
|SAI5_RXC
 
|SAI5_RXC
−
|GPIO3_IO20
+
|I2C6_SDA
 
|
 
|
 
|-
 
|-
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|
 
|
 
|}
 
|}
−
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 13:51, 15 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
7
8
10
11
12
13
15
16
18
19 ECSPI2_MOSI I2C3_SDA
21 ECSPI2_MISO I2C4_SCL
22 SAI5_MCLK I2C5_SDA
23 ECSPI2_SCLK I2C3_SCL
24 ECSPI2_SS0 I2C4_SDA
26
27
28
29
31
32 SAI5_RXFS I2C6_SCL
33
35
36
37
38 SAI5_RXD0 I2C5_SCL
40 SAI5_RXC I2C6_SDA
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 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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