To operate the GUI, follow these steps:

1. Connect to and launch the GUI as described in Section 3.2.1.3.1.
2. Close the README.md file page that pops up after the EVM connects to the GUI. The text near the bottom-left hand corner of the GUI reads as Hardware Connected.
   Figure 3-7 Hardware Connected
   1. If Hardware Connected does not show in the bottom-left hand corner of the GUI, then check different hardware COM ports under Options >> Serial Port.
      Figure 3-8 Change Serial Port
   2. If the hardware still does not connect, then make sure the correct GUI and EVM combination is in use.
3. Click the Configuration icon shown in Figure 4-9 (also available on the left-side menu) to select the number of TMAG3001EVMs on the I2C bus, as well as select which pin the ADDR pin is tied to.
   Figure 3-9 Configuration Page Icon
   Note:

   If at anytime during operation the pin that the ADDR pin is tied to changes, please return to the Configuration Page to update the ADDR Pin Connection so that this change is reflected.

4. Click the Registers icon shown in Figure 4-10 (also available on the left-side menu) to view the register map, change device settings, and enable automatic register read. For questions about a register or register bit field, select the icon. For more questions about registers, check the data sheet (SLYS053).
   Figure 3-10 Registers Page Icon
5. Click the Plots icon shown in Figure 4-11 (also available on the left-side menu) to view and save graphical data from the results registers. This screen shows the x-axis, y-axis, z-axis, angle, magnitude and temperature plots that are derived from the corresponding TMAG3001 result registers. These plots have been converted to real world units of mT and degrees. Click the SAVE PLOT button on the corresponding plot to save any specific plot.
   Figure 3-11 Plots Page Icon