Using The Evaluation Board And The Gui - Semtech SX8724SEVK User Manual

ADVANCED COMMUNICATIONS & SENSING
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
page 13 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
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.
ACS - Revision 1.0
© Semtech Corp.
Figure 32. "Voltages" settings in the GUI
Figure 33. "GPIO" settings
May 2011
Evaluation Kit for SX8724S Data Acquisition System
Figure 31 on page
value to the corresponding value selected on the board:
BATT
Page 39
SX8724SEVK
USER GUIDE
38.
"Power Supply Selection" on
www.semtech.com