This section details the hardware equipment and setup.

Hardware Equipment:

• PC or laptop
• EV2400
• TPL0102 EVM
• DC power supply

Hardware Setup:

1. Insert header caps in J1, J2, and J3 to set A2, A1, and A0, respectively. The board is shipped with the following settings: A2 = 0, A1 = 0, and A0 = 1.
2. Connect the I2C bus of the host(EV2400) to the board via connector J14 (pins marked SCL, SDA). Also connect the GND pin on J14 to GND of the host processor.
3. Apply the positive supply voltage 2.7 V–5.5 V(VDD) to center pin of J4. Apply GND to lowest pin of J4.
4. Apply the negative supply voltage (VSS) to J5. The board is shipped with a header cap that connects VSS to GND.
5. Write to the TPL0102 data registers per protocol in the TPL0102 Two 256-Taps Digital Potentiometers With Non-Volatile Memory Data Sheet.
6. Measure resistance between H, W, L terminals as appropriate on headers J8–J13.

Figure 3-1 Hardware Setup.

Figure 3-2 TPL0102 EVM Board Connection.