WPR1500-BUCK MP Receiver V2.1 Reference Design User’s Guide, Rev. 0, 09/2016
26
NXP Semiconductors
Getting Started
Figure 35. FreeMASTER GUI tool
The control page includes three tabs: Current/PGA Calibration, FOD Calibration, and System Control. The
output current calibration function is enabled when the macro ADC_CALIBRATION_FREEMASTER is
set to 1.
After getting the calibration result, click the
Store to flash
button to save these parameters in flash. These
parameters are used to calibrate the output current every time when the RX board is started. The internal
PGA calibration function is disabled by default because of the flash limitation. When this function is
enabled, the calibration result can also be saved in flash by default.
The FOD Calibration function can work offline. The user needs to measure some parameters and fulfill
them in this page. When calibration is complete, the parameters that can be used in the project code are
listed in the bottom area of this page.