> Hello,
> what should be the correct settings of the fuses for an ATMega32?

The answer is as always: It depends. It depends on your hardware
layout, it depends on whether you want to use the watchdog/brownout
detector, it depends on your clock source etc. Since there is no
general answer, I cannot tell the "correct" settings. Thus I
wrote

> MCU=atmega32
> # set the fuses according to your MCU
> LFUSE=0xnn
> HFUSE=0xnn

to make clear, that there is work left for the user. 

I usually use controllers with external quartz oscillators and
sufficiently clock rate (8-20 MHz). For that I usually leave the
factory defaults (see datasheet from www.atmel.com) plus change
the the oscillator fuses. Arduino's usually require a reset
of the NRWW boot section to the maximum size (the arduino
bootloader is small).

There is a nice website to play with the fuses and it gives
you a copy'n'paste ready avrdude commandline

http://www.engbedded.com/fusecalc/

Fuses are very sensitive, making an error with them
can cause a lot of trouble to re-vive the controller
(it's almost always possible, but may require special
programming hardware, look for HV programmers and 
external clock sources).

Sorry if this is not the answer you may have expected.

Matthias

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