<section begin="History" />

!colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History

!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"|Notes

|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.Z2021/04/06|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|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"|TBDFirst release

<section end="History" /><section begin="Body" />

The Auxiliary connectors interface available on the Evaluation Kit at the connector ''TBD:Jxxx''are J11 and J12, 2x15x2.  ''Jxx'' is a ''TBD:connector-type'' 54mm stripline header connector for the RS232 two-wires UART3 port, used for debug purposes (bootloader and operating system serial console).

[[File:{{{nomeETRA-som}}EVK-EVBauxiliary-Auxiliary connectors-connector.png|thumb|center|500px|Auxiliary connectors connector]]

The following table describes tables describe the interface connectors signals:* J11

! latexfontsize="scriptsize"| Pin#! latexfontsize="scriptsize"| SOM Pin#! latexfontsize="scriptsize"| Pin name!POWER! latexfontsize="scriptsize"| Pin functionJTAG! latexfontsize="scriptsize"| Pin NotesKEYBOARD!LED

|1,2,4,6,,7,8,10

| N.A.5V_CB|5V|| N.C.| Not connected

| 32| -| J1.1893V3_CB| RS232_RX3.3V| Receive line

| 3| J1J18.187143| RS232_TXADP5589_R2| Transmit line||ROW_2||-|4|J18.149|ADP5589_C0|||COLUMN_0|LED_0|-|5|J18.141|ADP5589_R3|||ROW_3||-|6|J18.151|ADP5589_C1|||COLUMN_1|LED_1|-|7|J18.139|ADP5589_R4|||ROW_4||-|8|J18.155|ADP5589_C2|||COLUMN_2|LED_2|-|9|J18.137|ADP5589_R5|||ROW_5||-|10|J18.157|ADP5589_C3|||COLUMN_3|LED_3|-|11|J18.135|ADP5589_R6|||ROW_6||-|12|J18.159|ADP5589_C4|||COLUMN_4|LED_4|-|13|J18.133|ADP5589_R7|||ROW_7||-|14|J18.161|ADP5589_C5|||COLUMN_5|LED_5|-|15,20,29| -|DGND|Ground||||-|16|J18.147|ADP5589_R0|||ROW_0|

| 917

| DGNDVDD| Ground3.3V|ref. voltage|||-|18|J18.145|ADP5589_R1|||ROW_1||-|19|J18.90|JTMS-SWDIO||JTMS-SWDIO|||-|21|J18.98|JTCK-SWCLK||JTCK-SWCLK|||-|22|J18.163|ADP5589_C6|||COLUMN_6||-|23|J18.92|JTDI||JTDI|||-|24|J18.165|ADP5589_C7|||COLUMN_7||-|25|J18.96|JTDO-TRACESWOO||JTDO-TRACESWOO|||-|26|J18.167|ADP5589_C8|||COLUMN_8||-|27|J18.94|NJTRST||NJTRST|||-|28|J18.169|ADP5589_C9|||COLUMN_9||-|30|J18.171|ADP5589_C10|||COLUMN_10|

=== Device mapping ===UART7_DEUART3 is mapped to <code>/dev/ttymxc2</code> device in Linux||-|25|J18.|EEPROM_WP||write protect for carrier eeprom||||||-|26|J18.|PD6||||||||-|27|J18. The peripheral is used as the default serial console, both |MEM_WP#||write protect for the bootloader and the kernelNAND||||||-|28|J18.|PA9||||||||}

To connect ==== CAN ====The CAN interfaces need a tranceiver to be connected to the CAN bus. '''NOTE:''' the FDCAN1 pins are shared with touchscreen I2C interface and are not available when using I2C5. See the [[ETRA SOM/ETRA Hardware/Peripherals/CAN|CAN]] page for more informations. ==== I2C5 ====Configured by deafult for touchscreen I2C interface. See the [[ETRA SOM/ETRA Hardware/Peripherals/I2C|I2C]] page for more informations. ==== SPI5 ===='''NOTE:''' these pins are shared with UART7, cannot be used at the same time. See the [[ETRA SOM/ETRA Hardware/Peripherals/SPI|SPI]] page for more informations. ==== UART7 ===='''NOTE:''' these pins are shared with SPI5, cannot be used at the same time. See the [[ETRA SOM/ETRA Hardware/Peripherals/USART|UART]] page for more informations. ==== SAI2 ====See the [[ETRA SOM/ETRA Hardware/Peripherals/Audio|Audio]] page for more informations. ==== LED driver ====Open collector outputs through a 120ohm resistor. Can be drive indicators LEDs By default all the debug serial portpins are available. ==== keyboard matrix ===='''NOTE:''' COLUMN[0:5] are not available by default as the pins are routed to the LED open collector outputs. Please send an e-mail to [mailto:helpdesk@dave.eu helpdesk@dave.eu] for custom configurations. See the [[ETRA SOM/ETRA Hardware/Peripherals/IO expander|IO_expander]] page for more informations. ==== Interface membrane ====This mambrane can be provided for user interface when the system is mounted on the 4 modules DIN BAR profile, it can offer up to 2 keys and 6 LEDs. Please send an e-mail to [mailto:helpdesk@dave.eu helpdesk@dave.eu] for more informations. ==== JTAG ====See the [[ETRA SOM/ETRA Hardware/Power and Reset/JTAG|JTAG]] page for more informations.

# connect === System control ===See the DB9 adapter bracket to the J22 connector on the SBCX board# connect a serial cable between DB9 connector [[ETRA SOM/ETRA Hardware/Power and Reset/Reset scheme 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,8,1control signals|reset scheme]] for more informations.