UM0452
External power mode of evaluation board
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3.
After setting the address press the reset button (S2) present on the board.
4.
Then the board functions showing the temperature and time on LCD.
Note:
If the address setting for TS2 is other than as shown in
or if the switches of TS1 are
not all set to 1 (
) then an error message appears on the LCD "ADDR.ERROR", in
which case, reconfigure the correct address of TS1 and again press the reset button (S2).
Note:
If the addresses are configured and there is no device in the socket an error message is
displayed on the LCD as "DEVICE ERR”, in which case place the device in the socket, and
reconfigure the addresses to select the device. Press the reset button to start the
application.
3.3
Values of temperature sensor registers in standalone mode
3.4
Behavior of FAN in standalone mode
There is a 5 V BLDC FAN present on the board. Whenever the temperature measured by
the sensor rises above the Tos (29 degree C in standalone case) value the FAN starts
running. As the measured temperature increases, the speed of FAN also increases until the
temperature reaches the maximum value setting (40 degree C for standalone case). For
temperature greater than 40 degree C, the FAN runs at maximum speed.
For the time and date an RTC is present on the board. This RTC also has a 3 V button
battery (Maxell CR2032) which powers the RTC in absence of power. Once the time and
Table 3.
Switch settings for selecting a different address of TS2 on board
Address
lines
Address 1
0x90
Address 2
0x92
Address 3
0x94
Address 4
0x96
Address 5
0x98
Address 6
0x9A
Address 7
0x9C
A0#
A1#
A2#
Table 4.
Register values in standalone mode
Register name
Value
Oversaturation (Tos)
29 Degree centigrade
Hysteresis (Thys)
27 Degree centigrade
Configuration (Tconfig)
0x04