Follow these steps to use the USB2ANY Explorer GUI to write and read SPI commands from the TXE81XX.

1. Connect the TXE81XXEVM to a computer/laptop with USB2ANY Explorer v2.8.2.0 installed.
2. Open USB2ANY Explorer v2.8.2.0 (Follow steps 1-3 of "Downloading USB2ANY Firmware" for download instructions).
3. On the bottom of the TXE81XXEVM, make sure that the SPI switch for SDO/SDI/CS/SCLK is enabled.
   Figure 3-6 Make Sure That the SPI Switch (SW1) is in the "ON" Position
4. Make sure that either 5V or 3.3V power jumper (J7 or J10, respectively) is shorted on the TXE81XXEVM. This matches the supply that is enabled in the USB2ANY Explorer GUI (in this case 5V).
   Figure 3-7 Match the Appropriate Header Jump With the Desired Voltage Level (3.3V or 5V)
   Note: Do not short both J7 and J10 at the same time. This shorts the 5V supply to the 3.3V supply with potential to create an over-current event if both supplies are enabled in the USB2ANY Explorer GUI.
5. Click "Select Interfaces", select "SPI", and hit "close".
   Figure 3-8 Select the "SPI" Interface
6. Open up the SPI tab and select the following configuration for SPI communication:
   1. Clock Polarity = Inactive Low
   2. Clock Phase = Leading Edge
   3. CS Polarity = Active Low
   4. Bit Direction = MSB First
   5. Length = 8 bits
   6. Bit Rate = user preference
   7. Slave Device = 0
   8. CS Type = per packet
   9. # of Bytes = 3
      Figure 3-9 Select the Following Requirements in the SPI Window
7. Begin writing/reading SPI data.
   1. Example, set port 0 GPIO's to OUTPUT through the direction control register (0x04). Write data = 04 00 FF.
      Figure 3-10 Write Data = 04 00 FF, to Set the GPIO's of Port 0 to "OUTPUT"
      Figure 3-11 Write Data = 03 00 00, to Set the Outputs of Port 0 to "LOW"