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BUF12800EVM Evaluation Board and Software Tutorial
This user's guide describes the characteristics, operation, and use of the BUF12800EVM evaluation
board. It 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 BUF12800EVM. 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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PowerPAD is a trademark of Texas Instruments.
Microsoft, Windows are registered trademarks of Microsoft Corporation.
WinZIP is a registered trademark of WinZip International LLC.
All other trademarks are the property of their respective owners.
SBOU116A - September 2011 - Revised August 2016
Submit Documentation Feedback
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Copyright © 2011-2016, Texas Instruments Incorporated
SBOU116A - September 2011 - Revised August 2016
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BUF12800EVM Evaluation Board and Software Tutorial
User's Guide
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Table of Contents
Related Manuals for Texas Instruments BUF12800
Summary of Contents for Texas Instruments BUF12800
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Page 1: Table Of Contents
Run Batch Dialog ..................... Control Panel Window PowerPAD is a trademark of Texas Instruments. Microsoft, Windows are registered trademarks of Microsoft Corporation. WinZIP is a registered trademark of WinZip International LLC. All other trademarks are the property of their respective owners. -
Page 2: Overview
10-bit source TFT-LCD reference drivers. The BUF12800EVM is a platform for evaluating the performance of the BUF12800 under various signal, reference, and supply conditions. This document gives a general overview of the BUF12800EVM, and provides a general description of the features and functions to be considered while using this evaluation module. -
Page 3: Buf12800Evm Hardware Setup
USB_DIG_Platform. The USB DIG Platform generates the analog and digital signals used to communicate with the BUF12800 test board. Connectors on the BUF12800 test board allow the user to connect to the system under various test conditions and monitor the power, current, and voltage. -
Page 4: Buf12800Evm Board Block Diagram
Theory of Operation for BUF12800 Hardware Figure 2 shows the BUF12800 test board hardware setup. The functionality of the PCB is such that it provides connections to the I C and general-purpose inputs/outputs (GPIOs) on the USB DIG Platform board. -
Page 5: Buf12800Evm Hardware
Figure 3 shows the block diagram for the 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, SBOU058 (available for download at www.ti.com). -
Page 6: Typical Hardware Connections For The Buf12800Evm
Figure 4. Typical Hardware Connections for the BUF12800EVM Connecting the Hardware To connect the BUF12800 Test Board and the USB DIG Platform together, gently push on both sides of the DSUB connectors. Note that the USB DIG Platform board has two DSUB connectors; either DSUB connector may be used. -
Page 7: Connecting External Power To The Buf12800Evm
If the USB cable is connected before the power, the computer may attempt communication to an unpowered device that is unable to respond. In addition, the BUF12800 test board requires an external dc power source. This source is not included with the kit, and its voltage may differ depending on your testing needs. -
Page 8: Connecting The Usb Cable To The Usb Dig Platform
Windows then confirms installation of the drivers with the message shown in Figure Figure 7. Confirmation of USB DIG Platform Driver Installation BUF12800EVM Evaluation Board and Software Tutorial SBOU116A – September 2011 – Revised August 2016 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated... -
Page 9: Default Jumper Locations For Buf12800Evm
USB DIG Platform do not need to be changed. You may want to change some of the jumpers on the BUF12800 Test Board to match your specific configuration. For instance, you may wish to set a specific C address. - Page 10 BUF12800EVM Hardware www.ti.com Table 4 summarizes the function of the BUF12800 Test Board jumpers. For most application, jumpers 2 through 5 are all set to the default positions. Table 4. BUF12800 Test Board Jumper Functions Jumper Default Purpose/Description JMP1 This jumper selects whether the V...
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Page 11: Buf12800Evm Features
This section describes some of the hardware features present on the BUF12800 Test Board. JMP1: V Control Setting Jumper JMP1 selects where the BUF12800 digital supply pin is connected. If JMP1 is set to the INT position, the DVDD pin is connected to the switchable V signal generated from the USB DIG Platform. - Page 12 JMP4: LD Control Setting Jumper JMP4 selects the input that the LD latch pin of the BUF12800 is connected to. If JMP4 is set in the INT position, it is routed through the JMP5 jumper where the reference voltage can be set high or low...
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Page 13: Buf12800Evm Software Setup
The BUF12800EVM provides two separate locations on the board where the BUF12800 test device can be installed. Location U1 allows for a BUF12800 device that is soldered down on a DIP adaptor board to be installed on the BUF12800 Test Board. The output capability of the BUF12800 that is soldered on this adaptor board can be fully evaluated. -
Page 14: Buf12800Evm Software Install Window
Once the files are extracted, navigate to the BUF12800EVM folder you created on your hard drive. Locate the setup.exe file and execute it to start the installation. The BUF12800 software installer file then opens to begin the installation process, as shown in Figure Figure 9. -
Page 15: Buf12800Evm Software Installation Progress
Figure 11. BUF12800EVM Software Installation Progress Software Description and Set-Up The BUF12800EVM software allows the user to read and write to all registers in the BUF12800 gamma correction buffer. Furthermore, it allows programming of the OTP register on the BUF12800. The software also permits the user to select either I C address. -
Page 16: Buf12800Evm Software Overview
BUF12800EVM is functioning properly. Figure 13. BUF12800EVM Software Interface BUF12800EVM Evaluation Board and Software Tutorial SBOU116A – September 2011 – Revised August 2016 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated... -
Page 17: Communication Error With Usb Dig Platform
BUF12800EVM and the software. Without jumper JMP6 and the software address button configured correctly, the software cannot communicate with the BUF12800 device. Figure 15. JMP6 Setting for Logic ‘0’... -
Page 18: Jmp6 Setting For Logic '1
Measuring the Power Supply You must measure the power supply (V ) with respect to the GND on the BUF12800 Test Board and enter it in the Vsup field located in the top section of the software interface as shown in Figure Figure 17. -
Page 19: Auto Write Feature Enabled
6.2.3 Read DAC Button By pressing the Read DAC button in the BUF12800EVM software, all of the BUF12800 DAC registers are read to obtain the respective current register contents. Once the read procedure is complete, all of the corresponding text boxes are updated to show the current values present in the DAC registers. -
Page 20: Save File Prompt
PC. It is a good idea to create a directory exclusively for BUF12800 DAC code (gamma voltage) files. Enter a unique file name in the File name field to store your BUF12800 register information. -
Page 21: Saved Data Format
BUF12800EVM Software Overview www.ti.com Saving the BUF12800 DAC codes (gamma voltages) creates a text file that can be opened in a text editor, as illustrated in Figure Figure 20. Saved Data Format 6.2.7 Load From File Button The BUF12800EVM software is also able to load data saved from previous evaluations. A saved register... -
Page 22: Run Batch Dialog
Figure 22 shows. The delay time is the amount of time between loading new configurations into the BUF12800. Use the Single Step Up and Single Step Down buttons to step through the selected files manually. The currently-selected file name is displayed in the lower left corner area of the dialog box. Double-click on the file names to select them. -
Page 23: Control Panel Window
BUF12800EVM software window that changes based on the channel that is highlighted. Figure 23. Control Panel Window SBOU116A – September 2011 – Revised August 2016 BUF12800EVM Evaluation Board and Software Tutorial Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated... -
Page 24: Buf12800Evm Documentation
BUF12800EVM Board Schematic Figure 24 shows the schematic for the BUF12800EVM board. Figure 24. BUF12800EVM Board Schematic BUF12800EVM Evaluation Board and Software Tutorial SBOU116A – September 2011 – Revised August 2016 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated... - Page 25 Figure 25 shows the PCB layout of the BUF12800EVM. Figure 25. BUF12800EVM PCB Top Layer (Component Layout) SBOU116A – September 2011 – Revised August 2016 BUF12800EVM Evaluation Board and Software Tutorial Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated...
- Page 26 Changes from Original (September 2011) to A Revision ....................Page .............. • Changed power supply in the BUF12800EVM Kit Contents section. Revision History SBOU116A – September 2011 – Revised August 2016 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated...
- Page 27 STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.
- Page 28 FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
- Page 29 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ い。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page SPACER EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
- Page 30 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2015, Texas Instruments Incorporated...
- Page 31 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.
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