SBOU293E November   2022  – August 2024

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 OPTEVM Kit Contents
    3. 1.3 Device Information
  6. 2Hardware
    1. 2.1 OPTEVM Hardware Overview
  7. 3Software
    1. 3.1 OPTEVM Software
      1. 3.1.1 Hardware Requirements
      2. 3.1.2 Software Installation
      3. 3.1.3 Typical OPTEVM Hardware Setup
      4. 3.1.4 Launching the OPT300x/4xxxEVM Software
      5. 3.1.5 OPTEVM Software Operation
        1. 3.1.5.1 Getting Started
        2. 3.1.5.2 Feature Descriptions
          1. 3.1.5.2.1 Lux Plot
          2. 3.1.5.2.2 Mean, Std, and the Blue Slider
      6. 3.1.6 Controls
        1. 3.1.6.1 Capture Controls
          1. 3.1.6.1.1 Start Capture and Stop Capture
          2. 3.1.6.1.2 Display Sample Count
          3. 3.1.6.1.3 Save to File
        2. 3.1.6.2 Device Controls
          1. 3.1.6.2.1 Mode Select
          2. 3.1.6.2.2 Conversion Time
        3. 3.1.6.3 Operation Controls
          1. 3.1.6.3.1 Operation Select
          2. 3.1.6.3.2 Measurement/Capture Trigger
          3. 3.1.6.3.3 Oneshot Time (μs)
      7. 3.1.7 OPTxxxDTSEVM Variants
        1. 3.1.7.1 OPT4048DTSEVM
          1. 3.1.7.1.1 OPT4048DTSEVM CIE XY Window
          2. 3.1.7.1.2 OPT4048DTSEVM Lux Live Window
          3. 3.1.7.1.3 OPT4048DTSEVM Channel Live Window
        2. 3.1.7.2 OPT4060DTSEVM
          1. 3.1.7.2.1 OPT4060DTSEVM Channel Live Window
          2. 3.1.7.2.2 OPT4060DTSEVM Lux Live Window
      8. 3.1.8 Scripts Window
        1. 3.1.8.1 Additional Features of the Scripts Window
          1. 3.1.8.1.1 Hidden IDE Window
          2. 3.1.8.1.2 devInit.py
          3. 3.1.8.1.3 04-launchGUI.py
        2. 3.1.8.2 Overview of Device Registers: OPT4xxx Devices
  8. 4Hardware Design Files
    1. 4.1 Coupon Board
      1. 4.1.1 Schematic
      2. 4.1.2 PCB Layout DTS Package
      3. 4.1.3 Bill of Materials (BOM)
    2. 4.2 Motherboard
      1. 4.2.1 Schematic
      2. 4.2.2 PCB Layout
      3. 4.2.3 Bill of Materials
  9. 5Additional Information
    1. 5.1 Trademarks
    2. 5.2 Troubleshooting
      1. 5.2.1 Microsoft Windows 7 Manual Driver Installation
  10. 6Related Documentation from Texas Instruments
  11. 7Revision History
3.1.8.1.1 Hidden IDE Window

The Latte program runs a number of python scripts in the background to capture and display data from the EVM. These scripts allow for initialization of the device including loading calibration data from the EVM flash memory, launching a live view window with measurement plot and readings, and additional functionality such as reading from the flash and selecting a specific LED current for the device to use. For advanced users or users looking for more flexibility when using the OPTEVM, these python scripts are available in an integrated development environment (IDE) window that is minimized when TI-Latte is launched. The IDE window allows advanced users to customize the existing scripts or write new scripts.

After launching Latte, expand the light sensor 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 light sensor folder. Further expanding the light sensor folder displays all the example scripts as shown in Figure 4-20.