To set up and use the EVM, follow these steps:
Gently flex the panel at the score line shown in
Figure 3-1 to split the board in half for a more compact form factor. This split
provides separate boards for the TMAG5x73A1 and TMAG5x73A2 portions of the
original board.
- Download and install the driver as a one-time
step per PC: http://www.ti.com/tool/download/sbac253
- Attach the EVM to the Sensor Control Board (SCB).
To evaluate the TMAG5x73A1 on the EVM, attach header J1 of the Sensor Controller
board to header J1_A1 of the EVM (see Figure 4-1). To evaluate the TMAG5x73A2 on the EVM, attach header J1 of the Sensor
Controller board to header J1_A2 of the EVM (see Figure 4-2).
- Use a USB cable to connect the SCB to a PC
- Insert the micro USB cable into the USB receptacle J2 that is on the SCB Controller onboard.
- Plug the other end of the USB cable into a PC.
- Access the GUI in either the Google Chrome® or Firefox® browser by
clicking on the following link: https://dev.ti.com/gallery/info/PositionSensing/TMAG5x73EVM_GUI/
- To quickly view results on the GUI, do the
following:
- Modify the MAG_CH_EN bits
in the SENSOR_CONFIG_1 register to enable the desired channels to read
from. The GUI has drop-down boxes to configure these bits when the
SENSOR_CONFIG_1 register is selected in the register tab of
the GUI.
- Select the desired result
plots under the Results to collect/show box in the Results
Data tab, and press Collect Data to trigger the
read.
These two steps are the minimum steps needed to see results in the GUI.
However, this assumes that the default register settings are used for the other
registers. For more custom settings, modify the corresponding register bits
according to the system requirements. - Apply a magnetic field to the sensor by doing one
of the following:
- Wave the included
handheld magnet around the sensor.
- Attach either the Rotate
& Push module or the Joystick module to the EVM (see Section 4.2 and Section 4.3). For more details on how to use these modules, see Section 4.2 and Section 4.3.
- Observe the outputs in the GUI.