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2.10 RESET: Reset Button
UNO-1170 provides a reset button on the top of the device.
2.11 Audio
UNO-1170 supports audio function with:
- Line In
- Line Out
2.12 Battery Backup SRAM
UNO-1170 provides 512 KB of battery backed SRAM. This ensures that
you have a safe place to store critical data. You can now write software
applications without being concerned that system crashes will erase criti-
cal data from the memory.
There is a BTRY LED in the front panel of the UNO-1170, please replace
the lithium battery with a new one if the BTRY LED is activated.
2.12.1 Lithium Battery Specifications
• Type: BR2032 (Using CR2032 is NOT recommended)
• Output voltage: 3 V
DC
• Location: the backside of UNO-1170 board.
(BH1 is for real time clock, BH2 is for SRAM)
2.13 LED and Buzzer for System Diagnosis
In
a “headless application” (an
application
without a
monitor display), it is
always
difficult
to
know the system status. Another
PC
may be needed to
monitor a headless device's status via RS-232 or
Ethernet. In
order
to
solve this problem, UNO-1170 offers
a programmable LED
indicator (Fig-
ure 2.13) and buzzer.
They can be programmed
to show a
systems status by
LED indicator flickering
and buzzer
alarm.