OLIMEX© 2012
OLinuXino-MICRO user's manual
3.3V NAND
0
1
0
0
Start up waits for JTAG
debugger connection
0
1
1
0
3.3V SD/MMC 1 (Default !!!)
1
0
0
1
3.3V SD/MMC 2
1
0
1
0
6.10 Jumper description
Please note that all the jumpers on the board are SMD type. If you feel insecure of your
soldering/cutting technique it is better not to try to adjust the jumpers.
6.10.1 SCL_SW/SCL_HW and SDA_SW/SDA_HW
Those two jumpers must be moved together – there are two available options – configuring
software I2C interface (both SCL_SW, SDA_SW closed) or hardware I2C interface (both
SCL_HW, SDA_HW closed).
The default position is SCL_HW/SDA_HW closed (soldered).
6.10.2 5V_E
The 5V_E jumper allows control over the powering line. If you want to disable the 5V powering
line open 5V_E jumper.
The default position is closed.
6.10.3 3.3V_E jumper
3.3V_E jumper is open by default. If closed (soldered) provides 3.3V at the pin 30 of CON1.
The default position is open.
6.10.4 Boot mode selecting jumpers
The boot mode is discussed in chapter 6.11 of this manual.
6.11 Additional hardware components
The components below are mounted on OLinuXino but are not discussed above. They are listed
here for completeness:
Reset button –
used for hardware reset of the board
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