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Software Quick Start

4

Software Quick Start

Here are the fewest steps to light the LEDs. See the LP8557

for description of the device

features.

Figure 6. Software Quick Start

6

LP8557IEVM User Guide

SNVU371 – December 2013

Submit Documentation Feedback

Copyright © 2013, Texas Instruments Incorporated

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Содержание LP8557IEVM

Страница 1: ...art A standard USB to mini cable must be connected to the USB2ANY from a PC The I2 C compatible interface program provides all of the control that the LP8557 part requires For proper operation first power the evaluation board the USB2ANY should then be plugged into the PC before the interface program is opened Once the program is executed a basic interface window will open Figure 1 User Interface ...

Страница 2: ...ect VDD to VIN Connect Ground to GND jack 3 Turn on the external supplies 4 Connect USB2ANY to computer USB port 5 Run LP8557 exe 6 Change the Mode in the dropdown box under Config Register to Brightness Hi Lo register only 7 Check the Enable Backlight box 8 Move the slider under Brightness Addr 03 and 04 to increase the current provided to the LEDs The 02 Status Register will update every time th...

Страница 3: ...www ti com EVM Description 3 1 Main EVM Board Figure 2 LP8557IEVM Main Board 3 SNVU371 December 2013 LP8557IEVM User Guide Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated ...

Страница 4: ...ption www ti com Figure 3 Current Sense Resistors 3 2 LED Loadboard Figure 4 LED Loadboard 4 LP8557IEVM User Guide SNVU371 December 2013 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated ...

Страница 5: ...www ti com EVM Description 3 3 Kit Assembly Figure 5 Kit Assembly 5 SNVU371 December 2013 LP8557IEVM User Guide Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated ...

Страница 6: ...ere are the fewest steps to light the LEDs See the LP8557 datasheet for description of the device features Figure 6 Software Quick Start 6 LP8557IEVM User Guide SNVU371 December 2013 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated ...

Страница 7: ...www ti com Main EVM Schematic 5 Main EVM Schematic Figure 7 LP8557IEVM Schematic 7 SNVU371 December 2013 LP8557IEVM User Guide Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated ...

Страница 8: ...ency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio frequency interference Operation of the equipment may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required t...

Страница 9: ... its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this l...

Страница 10: ...tained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product Also please do not transfer this product unless you give the same notice above to the transferee Please note that if you could not follow the instructions above you will be subject to penalties of Radio Law of Japan Texas Instruments Japan Limited address 24 1 Nishi Shinjuku 6 c...

Страница 11: ...derations per the user guidelines Exceeding the specified EVM ratings including but not limited to input and output voltage current power and environmental ranges may cause property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and intended loads Any loads appl...

Страница 12: ...esponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

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