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AXEL ULite SOM/AXEL ULite Evaluation Kit/Interfaces and Connectors/GPIOs

1,128 bytes removed, 13:55, 19 July 2021
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==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''i.MX6UL can handle external pins in many different ways and most of them can be configured as GPIOs. When a pin is set as a GPIO, it is possible to read its value, change its direction or change output value directly from the shell.
=== Description ===
The GPIOs interface available on the Evaluation Kit at the connector ''TBD:Jxxx''JP1.  ''Jxx'' JP1 is a ''TBD:connector-type'' 2x6x2.54mm header pinstrip connector for the RS232 two-wires UART3 port, used for debug purposes (bootloader and operating system serial console). 
[[File:{{{nome-som}}AXEL_ULite-EVB-GPIOs-connector.png|thumb|center|500px|GPIOs connector]]
===Signals ===
! latexfontsize="scriptsize"| Pin Notes
|-
|1,|| - || 3.3V|| - || -|-|2,4,6,,7,8,10|| - || DGND|| Ground || -| -| N3 || J1.A.93 || GPIO_IN_0 || | N.C.| Not connectedGPIO2_IO09
|-
| 34 || J1.189107 || GPIO_OUT_0 || RS232_RX| Receive line| GPIO2_IO12
|-
| 35 || J1.95 || GPIO_IN_1 || || GPIO2_IO08|-|6 || J1.38 || GPIO_OUT_1 || || GPIO1_IO00|-|7 || J1.97 || GPIO_IN_2 || || GPIO2_IO11|-|8 || J1.78 || GPIO_OUT_2 || || GPIO4_IO24|-|9 || J1.18799 || GPIO_IN_3 || || GPIO2_IO10| RS232_TX-| Transmit line10 || J1.80 || GPIO_OUT_3 || || GPIO4_IO22| -|11 || J1.105 || GPIO_IN_4 || || GPIO2_IO13|-|12 || J1.179 || GPIO_OUT_4 || || GPIO1_IO23
|-
| 9
| -
| DGND
| Ground
|
|}
=== Device mapping ===
UART3 is mapped to <code>/dev/ttymxc2</code> GPIOs can be used directly on Linux kernel device in Linux. The peripheral is used as driver or can be configured on the default serial console, both for the bootloader and the kerneldevice tree.
=== Device usage ===
To connect to See the debug serial port: # connect the DB9 adapter bracket to the J22 connector [[AXEL_ULite_SOM/DESK-MX6UL-L/Pheripherals/GPIOs | GPIOs]] page on the SBCX board# connect a serial cable between DB9 connector and PC COM port through a NULL[[AXEL_ULite_SOM/DESK-MX6UL-L | DESK-MX6UL-modem cable (not provided)# start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1L]] Software Manual.
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[[Category:AXEL ULite]]
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