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OLIMEX© 2015
iMX233-OLinuXino-NANO user's manual
The iMX233 has a built-in battery recharge circuit. This means that if you have a battery and
external power supply connected simultaneously, if the battery is not fully charged it would start
charging (drawing current from the external power supply).
6.8 Boot mode positions
The iMX233 can boot the operating system from different locations. The default location for the
Linux files we used is the microSD card. There is a resistor matrix RM1 responsible for the boot
mode. It is located on the back of the board. Note that the jumpers are SMD type and opening a
jumper would require cutting, closing a jumper would require soldering. To be able to do the quoted
operations you will need basic engineering skills and experience. You can check below the table or
the schematic for the correct positions. Value of "1" means the jumper is closed.
You can find the boot mode options in the next table:
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