Texas Instruments OPT3101 User Manual

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SBAU309A–February 2018–Revised June 2018
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OPT3101 Evaluation Module
8.1.2 Initialization
The EVM is initialized by running the devInit.py script in Latte. This runs the variablesSetup.py, Initialization.py, and loadRegistersFromFlash.py
scripts in addition to creating the objects for interfacing with the device (dev), the device registers (regProg), and the capture infrastructure of
the MSP430 on the EVM (capDev), which allows for higher speed data transfer over a dedicated data COM port. Running the devInit.py script
will automatically run the launchGUI.py script after completing initialization steps. This will display the graphical window for controlling the EVM
and visualizing data.
8.1.3 Calibration
The OPT3101 device has a number of calibration features to increase the device’s performance that are loaded when running devInit.py. The
EVM is calibrated for internal crosstalk, illumination crosstalk, phase offset, crosstalk over temperature, phase offset over temperature, and
ambient correction. For more details on these calibration features see OPT3101 ToF based Long Range Proximity and Distance Sensor AFE
and the OPT3101 Distance Sensor System Calibration. The EVM calibration values are stored onboard the flash of the MSP430. The
calibration values are loaded from the flash into the OPT3101 using the loadRegistersFromFlash.py script in Latte.
8.1.4 Running the Scripts
After launching Latte, expand the OPT3101 directory on the left hand side of the window under Files by clicking the triangle to the left of the
directory name. This displays the calibData, drivers, and OPT3101EVMrevE3_Demo folders. Further expanding the OPT3101EVMrevE3_Demo
folder will display all the example scripts as shown in Figure 24.

Texas Instruments OPT3101 Specifications

General

Brand	Texas Instruments
Model	OPT3101
Category	Motherboard
Language	English

Summary

Introduction and Hardware Overview

Introduction to the OPT3101 EVM

Overview of the OPT3101 EVM, its purpose, and its constituent parts.

OPT3101EVM Hardware Components

Detailed description of the OPT3101EVM board and its primary hardware components.

Safety and Regulatory Information

Eye Safety and REACH Compliance

Warnings regarding LED eye safety and statements on REACH regulations.

Software Installation and Setup

Minimum System Requirements

Necessary PC specifications for installing the OPT3101EVM GUI software.

TI-Latte Software Installation Process

Step-by-step guide for downloading, installing, and configuring the TI-Latte software.

Using the OPT3101 EVM with Latte Software

EVM Connection and Driver Verification

Steps to connect the EVM and confirm correct driver installation on the PC.

Latte Software GUI Operation and Data Viewing

How to operate the GUI, view data, and interpret plots.

Troubleshooting EVM Driver Installation

Manual Driver Installation Guide

A detailed procedure for manually installing drivers in Windows 7.

EVM Schematics, Layout, and Bill of Materials

EVM Schematics and PCB Layout Diagrams

Visual representations of the EVM's circuit schematics and PCB layers.

OPT3101EVM Bill of Materials

Comprehensive listing of all components used in the OPT3101EVM.

Appendix: Scripting and Data Analysis

EVM Initialization and Calibration Scripts

Procedures for initializing the EVM and loading calibration data using scripts.

Capturing and Visualizing Real-time Data

How to launch the GUI for real-time data visualization and analysis.