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AXEL Lite SOM/AXEL Lite Evaluation Kit/Interfaces and Connectors/micro SD

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==micro SD 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 ===
The micro SD interface available on the Evaluation Kit at the connector ''TBD:Jxxx''J26.
''Jxx'' J26 is a ''TBD:connectorMicro-type'' SD card header connector for . This interface is connected to the USDHC1 controller of the RS232 twoi.MX6 CPU. [[File:AXEL Lite-EVB-microSD-wires UART3 port, used for debug purposes (bootloader and operating system serial console)connector.png|thumb|center| 500px|microSD connector]]
===Signals ===
{| class="wikitable"
! latexfontsize="scriptsize"| Pin#! latexfontsize="scriptsize"| SOM Pin#! latexfontsize="scriptsize"| Pin name! latexfontsize="scriptsize"| Pin function! latexfontsize="scriptsize"| Pin Notes|-| 1 || J10.79 || SD_DAT2 || Data 2|| |-| 2 || J10.81 || SD_DAT3 || Data 3|| |-| 3 || J10.83 || SD_CMD || CMD|| |-| 4 || - || 3V3 || +3.3 V|| |-| 5 || J10.85 || SD_CLK || Clock||
|-
|1,2,4,6,,7,8,1012 || -| N.A.| N.C.DGND || Ground|| Not connected
|-
| 37 | J1| J10.18975 || SD_DAT0 || RS232_RXData 0| Receive line|
|-
| 38 | J1| J10.18777 || SD_DAT1 || RS232_TXData 1| Transmit line|
|-
| 9, 10, 11 || - || SD_SHIELD || Shield|| | -| DGND13 || J10.177 || EIM_D19 || Card detect| Ground|
|}
=== Device mapping ===
UART3 The microSD card is mapped to <code>/dev/ttymxc2mmcblk0</code> device in Linux. The peripheral is used available partitions are shown as the default serial console<code>/dev/mmcblk0p1</code>, <code>/dev/mmcblk0p2</code>, both for the bootloader and the kerneletc.
=== Device usage ===
To connect to the debug serial port: # connect the DB9 adapter bracket to the J22 connector on the SBCX board# connect The device can be mounted/accessed as 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,8,1standard block device in Linux.
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[[Category:AXEL Lite]]
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