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ADVANCED COMMUNICATIONS & SENSING
USER GUIDE
SX8724SEVK
Evaluation Kit for SX8724S Data Acquisition System
ACS - Revision 1.0 May 2011
© Semtech Corp.
17.3
Using the Evaluation Board and the GUI
17.3.1 Configuration
1. Connect the sensor to the board as described in
.
2. Select the power supply of the evaluation board to 3.3V (see chapter
of the evaluation board user’s guide).
3. Connect the USB connector to the evaluation board and to the PC to power the board.
4. Launch the Graphical User Interface.
5. Start the connection to the EVK in the GUI.
17.3.2 Voltages Settings
In the “Voltages” group of controls, set the V
BATT
value to the corresponding value selected on the board:
3.3V. This has no influence for the board itself but allows correct data calculation in the GUI.
17.3.3 Sensor Biasing
After a Power-on-reset the GPIO are set to a digital output low state. The sensor bias is connected to D0 pin.
Switch ON the “D0” “Out” control to set this GPIO as output high state to drive the sensor.
Figure 32. “Voltages” settings in the GUI
Figure 33. “GPIO” settings
