OLIMEX© 2013
A10S-OLinuXino-MICRO user's manual
6.16 Jumper description
Please note that most the jumpers on the board are SMT type. If you feel insecure of your
soldering/cutting technique it is better not to try to adjust the jumpers since it is possible to damage
the board.
Board jumpers
Jumper name
Type
Default position
Function
UBOOT/REC
PTH
UBOOT
Changes the functionality of the
BOOT/REC button – when in UBOOT
position the button is used to
enter bootloader mode (to connect
via USB_OTG). When in REC
UBOOT_EN
SMT
Open
When UBOOT_EN is closed then HOME
button acts like BOOT button –
e.g. capable of entering the board
into bootloader mode.
#CE_NAND_E
SMT
Closed
When open disables the NAND memory
(if you have a board with NAND).
This might be useful if you want
to use the signals on GPIO-2
VPS-
SMT
Open
Reserved for future use of
different types of NAND memories.
VPS+
SMT
Open
Reserved for future use of
different types of NAND memories.
JTAG2PB_E
SMT
Open
Changes the JTAG port mapping.
When closed JTAG is mapped to PB
(Port B). When open JTAG depends
on software config.
5V/LDO0
SMT
LDO0
When in 5V position excludes the
power module AXP152 from powering
the MCU. When in LDO0 position
AXP152 handles the power supply.
+5V/USB1-DRV
SMT
USB1-DRV
When in position 1, the A10s
controls the USB_HOST powering;
when in position 2 – the USB_HOST
is always p5V
1.2V_INT_E
SMT
Closed
When disconnected is used for
amperage measurements at 1.2V.
1.5V_E
SMT
Closed
When disconnected is used for
amperage measurements at 1.5V.
3.0VA_E
SMT
Closed
When disconnected is used for
measurements at 3.0VA.
3.3V_E
SMT
Closed
When disconnected is used for
amperage measurements at 3.3V.
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