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 VDC
•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.