Texas Instruments TMP112EVM User Manual
Texas Instruments TMP112EVM User Manual

Texas Instruments TMP112EVM User Manual

And software tutorial

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TMP112EVM Evaluation Board and Software Tutorial
This user's guide describes the characteristics, operation, and use of the TMP112EVM evaluation board.
This guide discusses how to set up and configure the software and hardware and reviews various aspects
of the program operation. Throughout this document, the terms evaluation board, evaluation module, and
EVM are synonymous with the TMP112EVM. This user's guide also includes information regarding
operating procedures and input/output connections, an electrical schematic, printed circuit board (PCB)
layout drawings, and a parts list for the EVM.
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Copyright © 2014, Texas Instruments Incorporated
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User's Guide
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Summary of Contents for Texas Instruments TMP112EVM

  • Page 1: Table Of Contents

    SBOU144 – August 2014 TMP112EVM Evaluation Board and Software Tutorial This user's guide describes the characteristics, operation, and use of the TMP112EVM evaluation board. This guide discusses how to set up and configure the software and hardware and reviews various aspects of the program operation.
  • Page 2: Overview

    C™ and SMBus™ interface that allows up to four devices on one bus. The TMP112 is ideal for extended temperature measurement, and is also specified to operate between –40°C and 125°C. The TMP112EVM is a platform for evaluating the performance of the TMP112 under various signal, reference, and supply conditions.
  • Page 3: Hardware Included With Tmp112Evm Kit

    Overview www.ti.com Figure 1. Hardware Included with TMP112EVM Kit SBOU144 – August 2014 TMP112EVM Evaluation Board and Software Tutorial Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 4: Tmp112Evm Hardware Setup

    The following documents provide information regarding Texas Instruments' integrated circuits used in the assembly of the TMP112EVM. This user's guide is available from the TI web site under literature number SBOU114. Any letter appended to the literature number corresponds to the document revision that is current at the time of the writing of this document.
  • Page 5: Tmp112Evm Board Block Diagram

    Table 3 shows the pin out for the 10-pin connector socket used to communicate between the TMP112EVM and the SM-USB-DIG. Note that the TMP112EVM uses only the necessary I communication lines (pins 1 and 3) and the V and GND (pins 6 and 8, respectively) to issue commands to the TMP112 sensors.
  • Page 6: Tmp112Evm Hardware

    Figure 4 shows the block diagram for the SM-USB-DIG platform. This platform is a general-purpose data acquisition system that is used on several different Texas Instruments evaluation modules. The details of its operation are included in a separate document, SBOU098 (available for download at www.ti.com).
  • Page 7: Connecting Sm-Usb-Dig Platform

    Yes when requested to install drivers. Windows confirms installation of the drivers with the message shown in Figure Figure 6. Confirmation of SM-USB-DIG Platform Driver Installation SBOU144 – August 2014 TMP112EVM Evaluation Board and Software Tutorial Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 8: 10-Pin Ribbon Cable Extender

    10-Pin Connector Ribbon Extender (Optional) The TMP112EVM kit ships with an optional ribbon cable for extending the connection between the SM- USB-DIG and the PCB. This extension cable can be useful if high temperature tests must be run on the test board because the SM-USB-DIG is not rated for high temperatures.
  • Page 9: Tmp112Evm Software

    (for example, C:\TMP112EVM) on your hard drive. When the files are extracted, navigate to the TMP112EVM folder you created on the hard drive. Locate the setup.exe file and execute it to start the installation. The TMP112 software installer file then begins the...
  • Page 10: Tmp112Evm License Agreements

    Instruments\. Following this option, two license agreements are presented that must be accepted, as shown in Figure 9. After accepting the Texas Instruments and National Instruments license agreements, the progress bar opens and shows the installation of the software. When the installation process is completed, click Finish.
  • Page 11: Tmp112Evm Software Overview

    The TMP112 software can be operated through the Windows Start menu. From Start, select All Programs; then select the TMP112EVM program. Figure 10 shows how the software appears if the TMP112EVM is functioning properly. Figure 10. TMP112EVM Software Interface Figure 11 shows an error message that is displayed if the computer cannot communicate with the SM- USB-DIG platform.
  • Page 12: Tmp112 Reading From Registers

    Using the TMP112Software 5.2.1 Reading from Registers When first starting the TMP112EVM software, the user must confirm stable connections to the test board by toggling the Read All Reg button (shown in Figure 12). If all devices are communicating correctly, the user then sees the temperature change over time in the TMP112 Temperature box.
  • Page 13: Tmp112 Writing To Registers

    5.2.2 Writing to Registers The TMP112EVM software contains two different methods for writing data: Write All Reg and Auto-Write Reg. Writing the registers individually without auto-write can be useful when adjusting large numbers of the configuration registers on the left side of the panel. The auto-write feature automatically makes...
  • Page 14: Reading The Temperature Gauge

    TMP112EVM board lights up when triggered and functions as a ground source. When the polarity box is set to active high, the LED on the TMP112EVM board does not function, and the Alert pin on the TMP112 is set to DVDD when triggered.
  • Page 15: Active And Shutdown Mode

    TMP112 falls below the T register value for the set amount of faults. When the TMP112EVM software is in interrupt mode, the Alert pin does not automatically clear after falling below the T register limit.
  • Page 16: Conversion Rate

    Data are saved in four columns: Time, Temp, Tlow and Thigh. Time is in the format of hh:mm:ss.ms; the remaining columns are readouts from the TMP112 in Celsius. Figure 21. Setting the Path for the Log File TMP112EVM Evaluation Board and Software Tutorial SBOU144 – August 2014 Submit Documentation Feedback...
  • Page 17: Alert Config Box

    NOTE: Only the bits that can be written within a given register can be toggled. SBOU144 – August 2014 TMP112EVM Evaluation Board and Software Tutorial Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 18: Tmp112 Documentation

    TMP112 Documentation This section contains the complete bill of materials and PCB layout for the TMP112EVM. NOTE: These board layouts are not to scale. These image are intended to show how the board is laid out and are not intended to be used for manufacturing TMP112EVM PCBs.
  • Page 19: Tmp112Evm Pcb Top Layer (Component Side)

    PCB Layout Figure 25 Figure 26 show the PCB layout of the TMP112EVM. Figure 25. TMP112EVM PCB Top Layer (Component Side) Figure 26. TMP112EVM PCB Bottom Layer SBOU144 – August 2014 TMP112EVM Evaluation Board and Software Tutorial Submit Documentation Feedback...
  • Page 20 TMP112 Documentation www.ti.com Bill of Materials Table 4 lists the bill of materials for the TMP112EVM. Table 4. Bill of Materials Item Value Ref Des Description Vendor/Mfr Part Number 10 kΩ R1, R2 Resistor, 10 kΩ 1/10W 5% 0603 Stackpole Electronics RMCF0603JT10K0 300 Ω...
  • Page 21 ADDITIONAL TERMS AND CONDITIONS, WARNINGS, RESTRICTIONS, AND DISCLAIMERS FOR EVALUATION MODULES Texas Instruments Incorporated (TI) markets, sells, and loans all evaluation boards, kits, and/or modules (EVMs) pursuant to, and user expressly acknowledges, represents, and agrees, and takes sole responsibility and risk with respect to, the following: 1.
  • Page 22 RADIO FREQUENCY REGULATORY COMPLIANCE INFORMATION FOR EVALUATION MODULES Texas Instruments Incorporated (TI) evaluation boards, kits, and/or modules (EVMs) and/or accompanying hardware that is marketed, sold, or loaned to users may or may not be subject to radio frequency regulations in specific countries.
  • Page 23 Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2014, Texas Instruments Incorporated spacer Important Notice for Users of EVMs Considered “Radio Frequency Products”...
  • Page 24 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
  • Page 25 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments TMP112EVM...

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