[avr-gcc-list] Re: PonyProg 2000: cannot read and write to device

[suzet war]

Hi,
thanks for the reply.
anyway, may i know what possibly i did until the
'external reset' fuse of the mcu atmega8535 blew?
i have set the security and configurations bit as
follow:

S8515C=1
WDTON=1
SPIEN=0(auto configure by PonyProg)
CKOPT=1
EESAVE=1
BOOTSZ1=0
BOOTSZ=0
BOOTRST=1
BODLEVEL=1
BODEN=1
SUT1=1
SUT0=0
CKSEL3=0
CKSEL2=0
CKSEL1=0
CKSEL0=1

hope you can explain what are the reasons.thank you.

regards,
Su


--- Royce Pereira <address@hidden> wrote:

> Possibly you blew the 'external reset' fuse by
> mistake?
> Serial programming may not work if so. You'll need a
> hi voltage parallel  
> programmer to erase the device & restore the fuses.
> 
> Alternately buy a new device & try again.
> --Royce
> 
> -- 


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