Справочник Пользователя для Olimex Open Source Hardware Embedded ARM Linux Single board computer with i.MX233 ARM926J @454Mhz IMX233-OLINUXINO-NANO IMX233-OLINUXINO-NANO

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IMX233-OLINUXINO-NANO

iMX233-OLinuXino-NANO user's manual

SSP1_DATA1

Ensure the board is soft powered down before removing the SD card – unplugging the SD card
during board operation OR removing the power supply during board operation might corrupt the
SD card, rendering it useless.

When removing the card, please make sure that you release it from the connector by pushing and
NOT by pulling the card directly (this can damage both the connector and the microSD card).

It is a good idea to be sure there are currently no read/write operations performed when ejecting the
SD card, or you might corrupt your Linux OS. If you corrupt the SD card you can download a new
image from the iMX233 wiki article at our web site.

6.3 UEXT module

OLinuXino board has UEXT connector and can interface Olimex's UEXT modules.
For more information on UEXT please visit:

https://www.olimex.com/Products/Modules/UEXT/

*Note the three jumpers PIN29/SOFT_CL – PIN22/LCD_EN/I2C_SCL; PIN28/SOFT_SDA3 –
PIN21/LCD_HSYNC/I2C_SDA and CS_SW:Open/CS_HW:Close which by default are set to a
software I2C! They can be used to set the whole UEXT to a hardware SPI. Additionally the chip
select might be left open.

Note that if you wish to use our UEXT modules the jumpers should be set to hardware I2C
position.

UEXT connector

Pin #

Signal name

Processor pin #

+3.3V_REG

GND

AUART1_TXD

127

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