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TI Home » TI E2E Community » Support Forums » Microcontrollers » MSP430™ Microcontrollers » MSP430 Ultra-Low Power 16-bit Microcontroller Forum » Interfacing a battery protection IC with an msp430 using 1 wire
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  • Interfacing a battery protection IC with an msp430 using 1 wire

    Interfacing a battery protection IC with an msp430 using 1 wire

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    Faraz Khan
    Posted by Faraz Khan
    on Aug 05 2012 03:38 AM

    I want to interface DS2784 battery protection IC with my msp430. The communication protocol is 1 wire. Can I create the required pulses simply by changing the direction and output of one of the GPIO pins(using the PxDIR and PxOUT function)? Also, if not, can the HDQ protocol be implemented? I'm a beginner so any extra guidance is welcome!

    MSP430 GPIO battery protection IC DS DS2784 HDQ
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    • Peter Dvorak
      Posted by Peter Dvorak
      on Aug 05 2012 15:57 PM
      Expert1530 points

      See http://karve.in/?p=1408

      Illustrated guide to interfacing Maxim OneWire (1-Wire) devices DS18B20 on TI Launchpad MSP-EXP430G2

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    • Mo.
      Posted by Mo.
      on Aug 06 2012 07:35 AM
      Genius10085 points

      Here is a general HDQ Implimention Guide for MSP430 (1-wire)  that might also be useful for you:

      http://www.ti.com/mcu/docs/litabsmultiplefilelist.tsp?sectionId=96&tabId=1502&literatureNumber=slaa196&docCategoryId=1&familyId=911

      BR,

      Mo.

      Make The Switch to TI MCUs

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    • Faraz Khan
      Posted by Faraz Khan
      on Aug 06 2012 07:59 AM
      Genius0 points

      I have gone through the document before, I can't seem to find the HDQ.c library mentioned in it.

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