How to change the Fuse bits in Atmega32u4

[Anand Ritesh]

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

[AJISH ALFRED]

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

[Anand Ritesh]

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 ??

[AJISH ALFRED]

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.

[Anand Ritesh]

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

[Author]

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