UM0452
USB power/GUI mode of evaluation board
19/30
4. Temperature
register:
–
This register is used to show the temperature measured by the sensor.
–
The ONCE button is used to read the temperature at any one instant.
–
The LOOP button is used to continuously measure and display the temperature.
–
Alarms appear on GUI only when the GUI is in LOOP mode.
The first slider present on GUI is the maxima temperature for FAN. This is used for setting
the temperature after which the FAN runs at maximum speed. To reset this temperature
adjust the slider and set the value by pressing the WRITE button.
The READ button is used for reading the values back from the sensor present on the board.
As soon as the address is checked, the registers show the default settings in this window.
Note:
Setting of temperature values uses the following order for the correct functionality of the
sensor: Maxima Temperature for FAN > Oversaturation Temperature > Hystersis
Temperature
GUI does not allow violating the above condition.
Figure 14.
Temperature sensor register settings
4.3.7 Alarms
To see the state of the alarms, the GUI should be in loop mode for continuous reading of the
temperature. There are three alarms present on the GUI:
1.
Temperature alarm:
Whenever the temperature measured by GUI rises above the temperature set for maxima
temperature for FAN this alarm lights up. When the Temperature falls below "Maxima
Temperature for FAN" the alarm goes off.
2. Oversaturation
alarm: