4 Evaluation Steps

The following steps are used to evaluate PGA460 function with MSPM0:

1. Prepare the necessary hardware equipment as mentioned in Section 2, and connect the necessary wires as shown in Table 2-1. For the used transducer muRata MA58MF14-7N, its available detection distance is about 0.2~6m. To get better test results, the obstacle in the test environment would be durable and wide range, like a wall.
2. Install CCS on the computer and prepare the code example as shown in Section 3.
3. Perform system parameter design with PGA460 GUI, as shown in Figure 4-1. For the process of GUI, see the PGA460-Q1 EVM Quick Start Guide and the PGA460-Q1 Ultrasonic Signal Conditioner EVM With Transducer User's Guide in the following URL: BOOSTXL-PGA460 Evaluation board|TI.com.
   Figure 4-1 PGA460-Q1 EVM GUI
4. For customized transducer, you need to make parameter adjustments and check the detection results, as shown in Figure 4-2.
   Figure 4-2 PGA460-Q1 GUI Detection Results

   After the result meet the expectation, you can export the register configuration parameters as shown in Figure 4-3. Then, update the thresholds and configuration in “PGA460.h”. For more parameter adjustment, see the PGA460 Ultrasonic Module Hardware and Software Optimization. If you use the same transducer (muRata MA58MF14-7N), you can ignore this step.

   Figure 4-3 Memory Map in GUI
5. Download the code and check if the measurement results in the serial port meet the requirements. Use a COM tool to catch the results send to PC through UART to USB, shown in Figure 4-4.
   Figure 4-4 Running Results