Setup
2.3
GUI Operation
2.3.1
Software Package
Download the TPIC8101 EVM GUI from the
. After installing, run the executable
file
TPIC8101EVM.exe
to start the GUI.
illustrates the GUI. By default, the IC will be working on default SPI mode after power up, which
happens after the USB cable is plugged into the PC. If the USB cable is consistently plugged into PC, the
IC stays in either default SPI mode or advanced SPI mode, depending on the last operation. If the IC is in
the advanced SPI mode, restart the IC to return to default SPI mode.
2.3.2
Operation in Default SPI Mode
The SPI is in the default mode on the power up sequence. In this case, the SDO directly equals the SDI
(echo function). In this mode, five commands can be transmitted by the master controller (TI
communication board) to configure the IC. Find setting details on page 13 of the datasheet (
In each setting, select a value from the combo boxes, and press the
Send SPI
button. The exact same
SPI response should be read, if the IC works correctly.
•
Set the prescaler and SDO status
•
Select the channel
•
Set the bandpass center frequency
•
Set the gain
•
Set the integration time constant
•
Enter advanced SPI mode. Once the advanced mode is entered, there is no way to return to normal
mode, unless the device is restarted.
Figure 2. GUI : Default SPI Mode
4
TPIC8101 Evaluation Module
SLIU012 – December 2015
Copyright © 2015, Texas Instruments Incorporated