Texas Instruments OPT8241-CDK-EVM User manual

OPT8241 CDK Evaluation Module
Quick Start Guide
Literature Number: SBOU156B
October 2015–Revised February 2017

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Table of Contents
Contents
1 Overview............................................................................................................................. 5
2 CDK Contents...................................................................................................................... 5
3 Safety................................................................................................................................. 7
4 Power Supply ...................................................................................................................... 9
5 Top-Level Specifications Of The EVM..................................................................................... 9
6 System Requirements........................................................................................................... 9
7 Software Setup................................................................................................................... 10
8 Hardware Setup.................................................................................................................. 10
9 Launching the Software ...................................................................................................... 11
10 Basic Troubleshooting........................................................................................................ 12
11 Related Documentation from Texas Instruments.................................................................... 12
12 If You Need Assistance....................................................................................................... 12
Revision History.......................................................................................................................... 12

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List of Figures
List of Figures
1 Components of EVM ........................................................................................................ 5
2 Explanatory Label............................................................................................................ 7
3 Manufacturer Label.......................................................................................................... 7
4 Serial Numbers............................................................................................................... 8
5 Certification Label............................................................................................................ 8
6 Hot To Touch................................................................................................................. 8
7 Streaming Enabled......................................................................................................... 11
List of Tables
1 Contents of CDK............................................................................................................. 5
2 EVM Specification ........................................................................................................... 9
3 Laser Illumination Profile.................................................................................................... 9
4 States of Board............................................................................................................. 12

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OPT8241 Evaluation Module
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Quick Start Guide
SBOU156B–October 2015–Revised February 2017
OPT8241 Evaluation Module
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OPT8241 Evaluation Module
1 Overview
The OPT8241-CDK-EVM is the official evaluation module for the second-generation 3D Time-of-Flight
(3D-ToF) sensor from Texas Instruments. This document describes the kit contents and the basic setup of
the EVM hardware and software. The EVM showcases the high-performance QVGA resolution 3D Time-
of-Flight sensor OPT8241 with its companion Time-of-Flight Controller OPT9221. Figure 1 highlights the
important components of the EVM.
Figure 1. Components of EVM
2 CDK Contents
Table 1 lists the CDK contents.
Table 1. Contents of CDK
Content Description Number of Pieces
Board Assembly (Sensor Board +
Illumination Board + Tripod Mount) The sensor board houses the sensor and the TFC.
Illumination boards with Lasers and mounted diffusers for IR
illumination 1
USB cable Micro-USB cable for connecting the EVM to the PCM 1
Quick Start Guide This document 1

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OPT8241 Evaluation Module
Table 1. Contents of CDK (continued)
Content Description Number of Pieces
Third-party brochure Metrilus calibration suite brochure 1
Complies with US FDA performance standards for laser products except for deviations pursuant to Laser
Notice No. 50, dated June 24, 2007.

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OPT8241 Evaluation Module
3 Safety
This Laser Device is designed at Class 1 during normal operation. While the OPT8241-CDK-EVM
development boards meet the Class 1 classification requirements under EN/IEC60825-1 2007, users are
advised to take the necessary safety caution when using the OPT8241-CDK-EVM. First, examine the
board for any damage before the board is powered. Check that the diffusers and diffuser mounts are
properly secured on the laser diodes. If there is any damage, stop operating by removing power from the
CDK immediately. Opening the laser diffuser assembly may lead to hazardous radiation exposure. Any
kind of circuit modification to the board or use of software or firmware other than the recommended EVM
tools and firmware provided by TI may lead to violation of class 1 safety limits. Due to the small size and
unsuitability for labeling, laser safety related labels are included herein, rather than on the product.
WARNING
Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation
exposure.
This is a class A product as defined by standard EN 61326-1:2013. This product is not intended to be
used in domestic establishments and also in establishments that are directly connected to a low-voltage
power-supply network that supplies buildings used for domestic purposes. In a domestic environment this
product may cause radio interference in which case the user may be required to take adequate measures.
There is no scheduled maintenance required for the OPT8241-CDK-EVM; any servicing and maintenance
of this EVM shall be performed only by trained Texas Instruments or TI-appointed trained personnel. Any
modification or significant damage to the CDK could potentially cause the CDK to operate outside of the
EN/IEC60825 2007 Class 1 classification limits.
Figure 2. Explanatory Label
For reference and future support, user should keep a record of the revision and serial number by entering
the information in the following location:
Figure 3. Manufacturer Label

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The revision and the serial numbers are located on the boards here:
Figure 4. Serial Numbers
Figure 5. Certification Label
Figure 6. Hot To Touch

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4 Power Supply
The recommended power adapter is EMSA050300-P5RP-SZ. Note that the recommended power adapter
is not included in the kit. The power adapter must be bought separately or an equivalent adapter should
be used.
External Power Supply Requirements:
• Nom Output Voltage — 5 VDC
• Max Output Current — 3 A
• Efficiency Level — V
NOTE: TI recommends using an external power supply that complies with applicable regional safety
standards such as (by example) UL, CSA, VDE, CCC, PSE, and so forth.
5 Top-Level Specifications Of The EVM
The top-level specifications of the EVM are listed in Table 2.
Table 2. EVM Specification
Item Value (Typical)
External power supply requirements 3 A at 5 V
Pixel resolution 320 × 240
Field of View 87° Diagonal. 74 (H) x 59 (V)
Maximum average optical output power 1.5 W
Connectivity USB 2.0
Operating Conditions 0°C to 40°C (Ambient)
The details of the laser illumination are listed in Table 3.
Table 3. Laser Illumination Profile
Item Value (Typical)
Wavelength 850 nm
Peak Optical Output 10 W
Pulse train width 18 µs–28 ms
Pulse repetition frequency 12-MHz to 80-MHz square wave at 50% duty cycle.
Laser Beam Divergence 80° at 90% power relative to the center
Laser Beam Shape Circular
Transverse Beam Mode Diffused
6 System Requirements
The system requirements are as follows:
1. Microsoft®Windows®7 / Ubuntu 14.04 64 bit PC
2. 2GB RAM
3. Minimum of 500MB free space

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7 Software Setup
Implement the following steps to setup the software:
1. Download the software for the appropriate platform from the TI website
here:http://www.ti.com/tool/opt8241-cdk-evm
2. Installation of the software:
• Windows - Install the software by running the downloaded executable.
• Ubuntu – The following dependencies must be installed before installing the Voxel Viewer
software.
– libusb ≥libusb-1.0
– ibudev
3. The default installation directory is “C:\Program Files\Texas Instruments\Voxel Viewer-0.x.y.z” on
Windows. On Ubuntu, the name of the executable is voxelviewer.
8 Hardware Setup
The hardware setup is shown in the following steps:
1. Ensure that the software setup is complete.
2. Verify that the EVM is in a fully-assembled state, as shown in Figure 1.
3. Ensure that the power switch on the board (SW2) is in the off position (to the left).
4. Verify that there is not apparent damage to the EVM and the laser diffuser assembly is in good shape.
This step is important to avoid accidental exposure to hazardous radiation.
5. Connect the recommended power supply.
6. Connect the board to the PC using the micro-USB cable provided.
7. Throw the power switch on the board (SW2) to on position (to the right).
8. Check that the master LED is green and the chipset LED is blue in color.