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You are here: Home / Topics / How to change the Fuse bits in Atmega32u4

How to change the Fuse bits in Atmega32u4

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Microcontroller › AVR › How to change the Fuse bits in Atmega32u4

  • This topic has 4 replies, 2 voices, and was last updated 8 years, 11 months ago by Anand Ritesh.
Viewing 5 posts - 1 through 5 (of 5 total)
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  • September 8, 2013 at 1:55 am #2631
    Anand Ritesh
    Participant

    Hi all I am using Atmega32u4 in which there is one fuse bit named (CKDIV8) when this bit is set then the Clock Frequency is divides by 8

    So now though I am using external Crystal Oscillator of 16Mhz but my Controller(atmega32u4) is running at 2MHZ so

    Can any one suggest me that what’s the procedure to change the Fuse bits in Atmega32u4

    September 10, 2013 at 4:51 am #10431
    AJISH ALFRED
    Participant

    Hi Anand,

    There is a software called AVR-BURNO-MAT using which you can write the required settings easily.

    I hope you will find the following link helpful.

    http://www.engineersgarage.com/embedded/avr-microcontroller-projects/How-to-Program-in-Boot-Loader-Section

    September 10, 2013 at 1:46 pm #10435
    Anand Ritesh
    Participant

    HI Ajish  thanks for the reply 

    I have dowloaded that AVrBurno mat Software but I checked in that there were no any OPTION to select “ATMEGA32u4” mcu.

     

    Is there any latest version or some similar software to change that one ??

    September 13, 2013 at 4:38 am #10442
    AJISH ALFRED
    Participant

    Hi Anand,

    I’m using AVR Burn-O-Mat v2. I can see the option “ATMEGA32”. It will do for your microcontroller “ATMEGA32u4” also, no issues. Please try it.

    September 18, 2013 at 11:33 am #10467
    Anand Ritesh
    Participant

    No i checked by selecting Atmega32 It has different Fuse bits like it has not CKDIV8 fuse bit 

    That’s why I asked is there any other software

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