USB-to-I2C Basic
Contents
1. 4 eerie e eerte ee esee eene enne enne etae eaae ease tette sete sete sees t sse ta sena MINIMUM SYSYEM REQUIREMENTS eese esee e eene nett etna tn neto setas en sens enue ADAPTER POWER REQUIREMENTS eere eene eee esee seen setas tn stone tas e tassa sts enoe I CU VS VIN DP ELON ror ENS USB to I2C Software MS USB to 12C Hardware connection to computer USB port s sessoesessoesosssesocssesoossessoesos HARDWARE DESCRIPTION ccccscscsccsccosscesssscnssenssonsesosoonscesesossensseseseecsosoeatossonsesassonsetess FIRMWARE UPDATES i csesssssccesiccoscedssscctcvesdectavcuistcess pode cesi satu bo udecsadsaieteaseccsddedeuseseatsads SOFTWARE UPDATES sie ipeeqsicdssinen eau tpa ada s Re cR pAn since 0 eU iin Eure PEN DI T pu qe ep OE ORE ud TECHNICAL SUPPORT nei etesdish roto ta nin In ernieren r i reas e sets TROUBLESHOOTING ettet ero cest HERE e HP o NEUE pK ene IP EUR susebhacshessuaesdscasscenteescbaseune iii INTRODUCTION The USB to I2C Basic Hardware connects to a standard USB port found on most Personal Computers and provides bi directional communication with I C devices using the I C protocol The Hardware is powered directly from the PC s USB port Figure 1 USB Link Indicator LED The LED located beside the connector illuminates after it has successfully been enumerated by the USB host This is shown in Figure 1 The USB to I2C software runs on 32 bit and 64 bit versions of2. Name Date modified Type E firmware bin 2 6 2009 10 10 AM BIN File gt eg Libraries wj Homegroup 4 i Computer gt amp Local Disk C gt e CRP1 ENABLD F 1 item 5 Select the firmware bin file and delete it You will be asked if you would like to delete the file Choose Yes Are you sure you want to permanently delete this file firmware bin Type BIN File Size 8 00 KB Date modified 1 11 2008 1 49 PM 6 Place the new firmware update into the folder a X QO a gt Computer gt CRPI ENALD F ac Organize v A Open v Burn New folder Name B Date modified Type Size a USBtoDC Basicbin 11 4 20144 42PM BINFile 6KB Favorites Libraries ES Homegroup jE Computer amp Local Disk C ex CRP1 ENABLD F T 3 USBtol2C Basic bin Date modified 11 4 2014 4 42 PM Date created 11 5 2014 11 41 AM BIN File Size 5 37 KB 7 Disconnect the USB to I2C hardware from the USB port 8 Remove the jumper from JFU 9 Plugthe hardware back into the PC It should now contain the new firmware You can now use the USB to I2C hardware with updated firmware You can check to see which firmware revision is loaded by clicking on About in the Help menu in the USB to I2C Basic software usB to 12cC C Made Simple Software Version 0 9 7 0 Firmware Revision v1 03 Nov 4 2014 Serial Number 1031 Information regarding other I2C tools can be found at Ord
3. USB to I2C Basic Hardware User s Manual T5 to I2C L1 Basic http www i2ctools com Information provided in this document is solely for use with the USB to I2C product from SB Solutions Inc SB Solutions Inc reserves the right to make changes or improvements to this document at any time without notice SB Solutions Inc assumes no liability whatsoever in the sale or use of this product including infringement of any patent or copyright Reasonable efforts have been made to ensure the accuracy of the information presented However SB Solutions Inc assumes no responsibility for the accuracy of the information No part of this document may be reproduced or transmitted in any form or by any means electronic or mechanical for any purpose without the express written permission of SB Solutions Inc P O Box 4506 Cary NC 27519 4506 Microsoft and Windows are registered trademarks of Microsoft Corporation Other brand names are trademarks or registered trademarks of their respective owners Copyright O 2014 SB Solutions Inc All rights reserved ii Table of Contents TIN ERO DUC TION ecc ENDE ID RR USB TO I2C BASIC KIT CONTENTS e eeeeee eee eese eese ta stesso sens toss tas e tastes etos enuse DISCLAIMER AND WARRANT Y eese tetatv teen eo Ie RAIN Yo Y ee kon ERES EE EXERE TERRENO orosei GELIING STARTED Gn odit ERNIRBR OH is o ba sri ie MR AN R in RUE nelustoitzee EE Static Handling Precautions
4. Windows XP Vista Windows 7 and Windows 8 and is compatible with any PC hardware having a minimum of a Pentium processor and an USB port The software provides several Universal modes to allow communication with most I C devices The USB to I2C software is designed to operate only with the included USB to I2C Basic hardware USB TO I2C BASIC KIT CONTENTS 4 USB to I2C Basic Hardware USB to I2C software installation download includes the following files Software license agreement USB to I2C Basic Registration Form USB to I2C Basic application USB to I2C Software User s Manual JUSB to I2C Basic Hardware User s Manual I C examples DISCLAIMER AND WARRANTY Proper use of USB to I2C is the sole responsibility of the user SB Solutions Inc is not responsible for any damage resulting from misuse or improper installation SB Solutions Inc will at our option repair or replace a defective USB to I2C hardware within thirty 30 days of the purchase date Return shipping is the responsibility of the user GETTING STARTED Assumptions We are assuming the user of this product has experience with the I C Bus protocol The I C Bus specification is a good source of detailed information about the I C Bus The complete specification can be downloaded from the NXP Semiconductors website Static Handling Precautions The USB to I2C Basic hardware contains devices that can be damaged by ESD It is recommended t
5. ers http www i2ctools com Email support support amp i2ctools com Email sales sales amp i2ctools com Copyright SB Solutions Inc 2014 SOFTWARE UPDATES The USB to I2C software has a built in update feature which allows you to check for updates whenever your PC has an internet connection This feature can be found under the Options menu USB to I2C updates can also be downloaded manually from the following website http www i2ctools com manuals and downloads Check our website periodically for update announcements and information TECHNICAL SUPPORT Technical Support for USB to I2C is available via an email to support8i2ctools com TROUBLESHOOTING m The USB to I2C Basic hardware does not have pull up resistors connected to the I2C bus lines The on board pull up resistors RP1 and RP2 can be soldered to the PCB but the pull up voltage is limited to 3 3V 7 USB to I2C monitors the communications on the I C bus for proper operation of connected peripherals any errors on the bus are detected and reported by the software Bus communication is stopped if errors are detected and can be resumed when the hardware problem is corrected and the transmission retried a If you get a Timeout message when using the software make sure that there is a pull up connected to the SDA and SCL pins The Timeout occurs when either or both of the I2C pins are held low for more than 1 0 seconds If pull ups are connected re
6. move the connection to the target system Reset the hardware by removing the USB cable and reinserting it If you still get a timeout error then the microcontroller may have been damaged Contact support i2ctools com for further assistance If all else fails email a description of the problem you are having to us at support i2ctools com Note that all technical support requests must begin with an email to this email address
7. o use a ground strap or touching the PC case or other grounded source before unpacking or handling the USB to I2C Basic hardware MINIMUM SYSYEM REQUIREMENTS Y PC Pentium 60 processor or equivalent 8 MB RAM and 16 MB of hard drive space Y One USB port either 3 0 2 0 or 1 1 compatible v 32 bit or 64 bit versions of XP Vista Windows 7 and Windows 8 Y Internet access for downloading software http www i2ctools com downloads html ADAPTER POWER REQUIREMENTS The USB to I2C Basic hardware obtains its power from the computer s USB port It should not be powered by an external power source INSTALLATION USB to I2C Software e Download the software installation file from the i2ctools com website e Unzip the file into a directory of your choice e Double click the unzipped installation file e The installation software should automatically start e Complete and send in the registration form via email USB to 12C Hardware connection to computer USB port e Neutralize any ESD static charge by touching the bare metal on the rear of your computer before removing the USB to I2C Hardware from the packaging e Connect the USB to I2C Hardware to a USB Port using a standard USB cable e The LED beside the USB port should illuminate HARDWARE DESCRIPTION JFU Firmware Update Jumper USB Link Indicator LED Signal connector Mini USB connector USB to I2C Basic Figure 2 Hardware Description The figure above shows the item
8. s on the hardware which you should become familiar with Here are the details USB Port this is where you plug the USB cable into the board A cable with a mini USB connector is required JFU firmware updated jumper short the two pins in the JFU to initiate a firmware update The complete update procedure is detailed later in this manual USB LINK INDICATOR LED the LED will illuminate when the cable has been connected between the PC and the USB to I2C Basic hardware Signal Connector The Signal Connector contains the connections to a user target application Signal Pin Function 3 3V 1 3 3V Supply Voltage Output not required SCL 2 I2C clock GND 3 Ground SDA 4 I2C Data 3 3V is the 3 3V power for the USB to I2C hardware This supply is active whenever the hardware is plugged into a USB port It is provided here to provide power to the pull up resistors if soldered to the board It can also be used to power a user s target hardware Do not connect this pin to your hardware if your hardware already has a power source I C Port connect these two pins SDA and SCL and GND to your target system Details can be found in the section titled Figure 3 PCB connections USB to I2C Hardware To Target Connection of this document SCL is the serial clock generated by the USB to I2C Basic hardware Clock stretching is supported SDA is the bidirectional I C data pin Pull up resistors although there are no pull up re
9. sistors soldered on the USB to I2C Basic hardware there are solder pads provided on the bottom side of the PCB RP1 and RP2 if you desire to have these available on the hardware The resistors have not been placed on the PCB since most target boards contain pull up resistors Removing the pull up resistors from the PCB also allow you to use a pull up voltage that matches your hardware requirements rather than being restricted to the 3 3V available on the USB to I2C Basic hardware Protection circuit the USB to I2C Basic hardware incorporates ESD protection diodes connected to the SDA and SCL lines but it does not have series protection resistors Because Fast mode plus allows a relatively high sink current on the I2C lines adding series resistors would have caused a high offset voltage so it was decided to eliminate these resistors Additional care should be exercised when handling the hardware due to the elimination of the series protection resistors USB TO I2C BASIC HARDWARE TO TARGET CONNECTION When connecting the USB to I2C Basic to user a user target system a minimum of three 3 wires will be required The SDA SCL and GND on the USB to I2C Basic hardware must be connected to their corresponding signals on the target The USB to I2C hardware does not have pull up resistors so these resistors need to available on the target hardware or they need to be soldered to the bottom side of the PCB The SDA and SCL lines may be pulled up
10. through resistors to a voltage between 3 3V and 5 5V It may work at voltages down to 2 7V however the noise margins will be lower USB to I2C User GND Hardware Hardware Figure 4 Minimum hardware connection between USB to IZC Basic and User Hardware If you would like the USB to I2C Basic hardware to power your 3 3V target hardware then you can connect the 3 3V pin on the header to your hardware The current consumption of the target hardware should be limited to 80mA or less V gs USB to I2C User Hardware Hardware Figure 5 Connections between USB to I2C Basic and User Hardware where power is provided to the User Hardware FIRMWARE UPDATES The firmware in the USB to I2C hardware can be updated by the user No special software is required for the update The firmware can be updated by using the following procedure 1 Disconnect the USB to I2C Basic hardware from the USB port It should also be disconnected from any user target hardware 2 Place a jumper across the bottom two pins of jumper JFU see figure in the Hardware Description section of this document 3 Plug the USB to I2C Basic hardware into the computer s USB port 4 The USB to I2C Basic hardware will be displayed as a mass storage device in Windows as shown below Note that the contents of CRP1 will always be displayed as firmware bin pere JJ e gt Computer CRP1 ENABLD F s Search CRPI ENABLD F2 CET gt yr Favorit
Download Pdf Manuals
Related Search