LPT-to-I2C SE
Contents
1. start the installation process LPT to I2C SE may not function correctly with mobile PCs that are mounted in docking stations This is due to corruption of the C signal timing by the docking station The software may not function correctly in systems containing more than one CPU If LPT to I2C SE is not recognizing your Adapter the parallel port of your PC may not be configured properly Check your parallel port configuration in your BIOS setup during PC boot and the parallel port settings in Windows It is best to use a standard bi directional or EPP mode if available Note that if the LPT to I2C SE Adapter is deriving its power from the computer s parallel port the LED may not illuminate until the LPT to I2C SE software has started The LED may turn off when the software is exited If you are experiencing communication errors to your connected PC target system make sure you are supplying external power to the adapter Remove the Adapter from the PC parallel port and power up your PC target system with the LPT to I2C SE Adapter connected via the PC bus The LED on the adapter should light if power is properly connected from the target system The adapter functionality can be verified by disconnecting the C cable from the target and then attempt to program the on board EEPROM using the 256x8 EEPROM with default address OxA0 or 0xA2 depending on the setting for jumper AO LPT to I2C SE Hardware User s Manual Excess PC cable length2. E Adapter connection to computer parallel port Ofi DOage EEPROM xs mates ene aimee t o A M name LPT TO 12C SE ADAPTER TO TARGET CONNECTION 5 05 codi nese coal iconos ete n HARBNVARE DESCR T ION Moot 0000 Wiis loose MUI gt ibas jde dica eses a PONE SOFTWARE UPDATES adh ut rial MEM a Falo ta aseos AN date Tn is TECHNICAL SUPPORT Tao A e e tee a OT 110 T a inca 110 T TROUBLESHOOTING M r a e 2 LPT to I2C SE Hardware User s Manual The LPT to I2C SE Adapter connects to the standard DB 25 parallel port found on any IBM compatible PC and provides bi directional communication with PC devices using the PC protocol The adapter can be powered either directly from the PC s parallel port or externally powered from the PC target system The on board LED indicates the presence of power If jumper JPWR is connected then the Adapter will be self powered and the LED will be powered from the parallel port If jumper JPWR is removed the Adapter is powered from an external source The LED may be very dim or may not be illuminated for very low voltage lt 1 9V applications The LPT to I2C SE software runs on Windows 95 98 ME NT 2000 XP XP64 Vista and Vista64 Itis compatible with any PC hardware having a minimum of a Pentium processor and a parallel port A PCI based parallel port add in card is also supported The software allows the user to select an EEPROM from a menu and also provides several Universal modes to allow commun
3. LPT to I2C SE Hardware Reference Guide a u ae a a b s http www i2ctools com November 1 2008 Information provided in this document is solely for use with the LPT to I2C SE 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 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 2008 SB Solutions Inc All rights reserved Table of Contents INTRODUGIRON 0 7 co oe z AO ecos ena ko IU 220 dan SSE LPT tgaI2C SE Professional KIT GON FENTS S ee DISCLAIMER ANDIWARRANIY a doo EM P o o S Mea nia GETING S TAR DE D TEREM E el 1000 PE O E Assumptio nS coo Statidhandline Precautions 77 0 E o o OS MINIMUM SYS YEM REGUIREMENTSS E read a OO canto ceca ADAFIFER POWER REQUIRE MENS ee e e a adecco a A e a aae oq S E gen cal ana eM INSTATEAFION r a e a o aena E A a e a EPEAO 12C SE Software Tan AM a A logy A a A ang LPT to 12C S
4. adapter It is recommended to use header JP1 for the connection to the target system Jumper JPWR must be removed LPT to I2C SE Hardware User s Manual Power Selector Trigger Out B 25 Parallel Port Input Port Connector plugs into the computer s printer LPT port I2C Header 1 JPWR Power Selector is used to configure the power source for the board When the jumper is connected the board is self powered the power for the board is supplied Pin 1 by the PC parallel port When the jumper is removed the power must be supplied through the DB25 Connector FOWer EEPROM Pin V pin The voltage must Parallel Port Indicator be in the range of 0 9V to 5 5V Note that at lower voltages approximately less than 1 9V the LED may not illuminate or may be dimly lit I2C Header 2 2 ee k PWR Power Indicator is used to visually show there is power to the board The LED may not be illuminated when a low voltage is applied to the board The LED turns on when a voltage of greater than 1 8V is applied to the board A0 EEPROM Pin 1 is usually the Address 0 AO address bit This jumper allows the user to change the on board EE address WP EEPROM Pin 7 is usually a Write Protect WP input and may be active either high or low This jumper allows the user to put the WP pin in the correct state for writing You can also place a device like the PCF8570 static RAM in the EEPROM socket and then tie this pin lo
5. at can be damaged by ESD It is recommended to use a ground strap or touching the PC case or other grounded source before unpacking or handling the LPT to I2C SE adapter v PC Pentium 60 processor or equivalent 8MB RAM and 5MB of hard drive space Y Parallel port configured as bi directional or EPP port Y Windows 95 98 ME NT4 2000 XP XP64 or Vista Y CD ROM Drive for installation The LPT to I2C SE adapter can be used stand alone since it obtains power from the PC parallel port This allows the on board PC 256 byte EEPROM to be programmed and verified without the need for an external power source When the LPT to I2C SE Adapter is connected to an PC target system power must be supplied from the target to the Adapter via one of the two 4 pin headers on the Adapter Caution ensure to connect these headers to the target correctly Jumper JPWR must be removed when the LPT to I2C SE Adapter is connected to an external target system The power LED PWR will be illuminated for voltage above 1 9V although it may be dim at the lower voltages LPT to I2C SE Software e Insert the LPT to I2C SE installation CD ROM into the appropriate drive e The installation software should automatically start e If the installation software does not start automatically double click on the Setup exe file on the CD ROM LPT to I2C SE Adapter connection to computer parallel port LPT to I2C SE Hardware User s Manual e Neutralize any ESD s
6. dia If all else fails email a description of the problem you are having to us at support 12ctools com
7. ication with most PC device The LPT to I2C SE software is designed to operate only with the included hardware adapter and will not detect 12C parallel port adapters from other vendors In addition the LPT to I2C SE adapter provides a socketed on board 256 byte EEPROM with direct connection to the PC bus power supplied by the PC parallel port Parallel Port adapter with 256 byte EEPROM LPT to I2C SE software installation CD ROM which loads the following files Software license agreement LPT to I2C SE Professional user Registration Form LPT to I2C SE Software User s Manual LPT to I2C SE Installation and User s Guide Hardware User s Manual this document DLL User s Manual Proper use of the LPT to I2C SE Professional kit 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 LPT to I2C SE Adapter within thirty 30 days of the purchase date Return shipping is responsibility of the user LPT to I2C SE Hardware User s Manual Assumptions We are assuming the user of this product has experience with the PC Bus protocol The PC Bus specification is a good source of detailed information about the IC Bus The complete specification can be downloaded from the Philips Semiconductors website Static Handling Precautions The LPT to I2C SE Adapter contains CMOS devices th
8. or bus capacitance may cause bus errors or erratic IC communication at full speed operation If this occurs reduce the bus frequency in the Options menu or reduce the length of the cables If intermittent communication to the on board EEPROM is experienced when the Adapter is self powered from the PC parallel port this may be caused by insufficient voltage from the PC motherboard some parallel ports supply only 3 3V especially on notebook computers Connecting an external 3 3v or 5V source to one of the PC headers on the Adapter should solve the problem The Adapter has 4 7kQ pull up resistors on the PC bus Insure that additional pull up resistors in the connected target system do not bring the pull up resistance below 1 6kQ for 5V systems or 1 1KQ for 3 3V systems Values below the minimum recommended values will violate the 3mA maximum bus current lor specification and can potentially affect communication reliability LPT to I2C SE monitors the communications on the 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 Keep the original LPT to I2C SE installation CD ROM in the event the software needs to be re installed Future LPT to I2C SE updates from our Website will require a previous installation from the original me
9. tatic charge by touching the bare metal on the rear of your computer before removing the LPT to I2C SE Adapter from the packaging e Connect the Adapter to an available parallel port Caution Some SCSI adapters also use the same DB 25 connector Inadvertently using a SCSI port may damage the SCSI port or Adapter The on board 8 pin DIP socket supports EC communication with the included EEPROM or other EEPROM devices The default PC address for this EEPROM socket is Ox A0 but the address can be altered by changing the position of the jumper AO address bit 0 The address will be OxAO if connected to ground and it will be OxA2 when connected to Vcc The use of the jumper allows you to change the address of the on board EEPROM if the target system contains a device with an address conflicting with the default OxAO If the target system has devices which conflict with both addresses the EEPROM should be removed to resolve the conflict There is also a jumper connected to pin 7 labeled WP of the EEPROM allowing connection of pin 7 to Vcc or ground Pin 7 is generally the Write Protect WP pin with some devices being active high and others being active low The EEPROM can also be replaced with a static RAM like the PCF8570 In this situation pin 7 should be connected to ground When an external PC peripheral is connected to the LPT to I2C SE Adapter the power must be supplied by an external power supply through the four pin connectors on the
10. w EEPROM is socketed to allow the user to use this hardware to program DIP EEPROMs The EEPROM is a handy feature to verify the hardware software are functioning correctly It is also suggested to try the PCF8570 static RAM as this device does not require a Write Cycle time that is required by an EEPROM Headers there are two headers on the board with different pinning layouts to connect the LPT to I2C SE hardware to the user s target system Please be careful when you connect the target to the header since incorrect connection can potentially cause damage to the adapter target or pc LPT to I2C SE Hardware User s Manual LPT to I2C SE has a built in web based update feature you can use to update the application You can also download the updates manually at the following website http www i2ctools com updates Check our website periodically for update announcements and information Technical Support for the LPT to I2C SE is available via email to support i2ctools com A Privileged Instruction error will be displayed if the software was installed on a Windows NT 2000 XP or Vista system without Administrative Privileges If this error is observed try re installing the LPT to I2C SE software with Administrative Privileges If the installer application doesn t launch when the CD ROM is inserted then manually browse the CD ROM and find the Setup exe file in the root directory of the CD Double click on the Setup exe file to
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